CAREL gaSteam UG Gas fi Red Humidifi User Manual
- June 12, 2024
- Carel
Table of Contents
CAREL gaSteam UG Gas fi Red Humidifi
Product Information
- Product Name: gaSteam – UG Gas-fired humidifier
- User Manual Version: +0300122EN – ENG
- Manufacturer: Carel
- Warranty: 2 years on materials (excluding consumables)
- Approval: ISO 9001 certified design and production system
Product Usage Instructions
General Warnings:
- Adjustment of units from natural gas to LPG must be done by Carel personnel or service.
- Avoid using electrical switches or telephones if you smell gas.
- If you smell gas, do not attempt to switch on any appliance. Call the gas supplier immediately or the fire brigade if unable to contact the gas supplier.
- Disconnect the mains power supply before accessing inside the humidifier to avoid electric shock hazard.
Installation:
The installation must include an earth connection using the special yellow-
green terminal available in the humidifier.
Disposal:
Please refer to European Union Directive 2012/19/EU and related national
legislation for proper disposal instructions.
How to read the manual:
The manual is divided into sections covering the purpose, general safety
information, overview, transport and handling, installation notes,
installation, and more. Each section provides specific instructions and
guidelines for using the product. Please refer to the complete user manual for
detailed instructions on operating the gaSteam – UG Gas-fired humidifier. The
up-to-date version of the manual can be found on the Carel website at
www.carel.com.
ENG
gaSteam – UG
Gas-fired humidifier
USER MANUAL
NO POWER & SIGNAL CABLES TOGETHER
READ CAREFULLY IN THE TEXT!
gaSteam – UG +0300122EN – ENG Up to date version available on www.carel.com
GENERAL WARNINGS
ENG
Adjustment of all units (covered by UL-998) from operation on natural gas
(factory setting) to LPG must only be carried out by Carel personnel or Carel
service.
FAILURE TO CAREFULLY HEED THE WARNINGS SHOWN IN THIS MANUAL COULD LEAD TO FIRE OR EXPLOSION AND CONSEQUENT DAMAGE TO PROPERTY, INJURY OR DEATH. · Do not store or use petrol or other flammable vapours and liquids in the vicinity of this or other appliances.
IF YOU SMELL GAS:
-
Do not attempt to switch on any appliance;
-
Do not touch any electrical switches; do not use telephones in the building;
-
Call the gas supplier immediately from a neighbour’s phone.
Follow the instructions given by the gas supplier; -
If you cannot contact the gas supplier, call the fire brigade; Installation and maintenance must be performed by a qualified installer, service centre or gas supplier.
CAREL Industries humidifiers are advanced products, whose operation is specified in the technical documentation supplied with the product or can be downloaded, even prior to purchase, from the website www.carel.com. Each CAREL product, in relation to its advanced level of technology, requires setup/configuration/programming to be able to operate in the best possible way for the specific application. Failure to complete such operations, which are required/indicated in the user manual, may cause the final product to malfunction; CAREL accepts no liability in such cases. The customer (manufacturer, developer or installer of the final equipment) accepts all liability and risk relating to the configuration of the product in order to reach the expected results in relation to the specific final installation and/or equipment. CAREL may, based on specific agreements, act as a consultant for the installation/commissioning/use of the unit, however in no case does it accept liability for the correct operation of the humidifier and the final installation if the warnings or suggestions provided in this manual or in other product technical documents are not heeded. In particular, as well as observing the above warnings and suggestions, the following warnings must be observed for correct use of the product:
ELECTRIC SHOCK HAZARD:
the humidifier contains live electrical com- ponents. Disconnect the mains
power supply before accessing inside parts or during maintenance and
installation.
WATER LEAK HAZARD: the humidifier automatically and constantly fills/ drains certain quantities of water. Malfunctions in the connections or in the humidifier may cause leaks.
BURN HAZARD: the humidifier contains high temperature components and
delivers steam a 100°C/ 212°F.
In the event where there is no demand for steam production for a period
exceeding 24 hours, the unit will automatically empty the boiler, so as to
avoid stagnation of the water inside. Environmental conditions, fuel and power
supply voltage must all comply with the specified values. All other uses and
modifications made to the appliance that are not authorised by the
manufacturer are considered incorrect. Liability for injury or damage caused
by the incorrect use of the appliance lies exclusively with the user. Please
note that the appliance is connected to the gas mains, contains live
electrical devices and hot surfaces. All service and/or maintenance operations
must be performed by specialist and qualified personnel who are aware of the
necessary precautions and are capable of performing the operations correctly
and in accordance with the safety standards and legislation in force, with
specific reference to: 1. Italian law no. 1083/71: “Safety standards relating
to the use of gaseous
fuel”; 2. Italian law no. 46/90: “Safety standards relating to systems in
buildings”; 3. Italian Presidential Decree no. 447 of 6 December 1991:
“Regulations for
the enforcement of law no. 46, dated March 5, 1990, on safety relating to
systems in buildings”; 4. Italian law no. 10/91: “Regulations for the
enforcement of the national plan for energy savings and the development of
renewable sources of energy”
CAUTION
The installation of the product must include an earth connection, using the
special yellow-green terminal available in the humidifier.
Caution: · Disconnect the appliance from the mains power supply before access-
ing any internal parts. · Environmental and power supply conditions must
conform to the val-
ues specified on the product rating labels. · The product is designed
exclusively to humidify rooms either directly or
through distribution systems (ducts). · Only qualified personnel who are aware
of the necessary precautions
and able to perform the required operations correctly may install, operate or
carry out technical service on the product. · Only water with the
characteristics indicated in this manual must be used for steam production. ·
Only water with the characteristics indicated in this manual must be used to
produce the spray. · All operations on the product must be carried out
according to the instructions provided in this manual and on the labels
applied to the product. Any uses or modifications that are not authorised by
the manufacturer are considered improper. CAREL declines all liability for any
such unauthorised use. · Do not attempt to open the appliance in any way other
than described in the manual. · Observe the standards in force in the place
where the humidifier is installed. · The appliance is not intended for use by
persons (including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a person
responsible for their safety. · Do not install and use the product near
objects that may be damaged when in contact with water (or condensate). CAREL
declines all liability for direct or indirect damage following water leaks
from the humidifier. · Do not use corrosive chemicals, solvents or aggressive
detergents to clean the inside and outside parts of the humidifier, unless
specifically indicated in the user manual. · Do not drop, hit or shake the
humidifier, as the inside parts and the linings may be irreparably damaged,
CAREL adopts a policy of continual development. Consequently, CAREL reserves
the right to make changes and improvements to any product described in this
document without prior warning. The technical specifications shown in the
manual may be changed without prior warning. The liability of CAREL in
relation to its products is specified in the CAREL general contract
conditions, published on the website www.carel.com
and/or by specific agreements with customers; specifically, to the extent
where allowed by applicable legislation, in no case will CAREL, its employees
or subsidiaries/affiliates be liable for any lost earnings or sales, losses of
data and information, costs of replacement goods or services, damage to things
or people, downtime or any direct, indirect, incidental, actual, punitive,
exemplary, special or consequential damage of any kind whatsoever, whether
contractual, extra-contractual or due to negligence, or any other liabilities
deriving from the installation or use of the product, even if CAREL or its
subsidiaries/affiliates are warned of the possibility of such damage.
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Warnings 3
ENG
DISPOSAL
Fig. 1
Fig. 2
PLEASE READ AND KEEP.
WITH REFERENCE TO EUROPEAN UNION DIRECTIVE 2012/19/EU IS
SUED ON 4 JULY 2012 AND RELATED NATIONAL LEGISLATION, PLEASE
NOTE THAT: · Waste Electrical and Electronic Equipment (WEEE) cannot be
disposed
of as municipal waste but must be collected separately so as to allow
subsequent recycling, treatment or disposal, as required by law; · users are
required to take Electrical and Electronic Equipment (EEE) at end-of-life,
complete with all essential components, to the WEEE collection centres
identified by local authorities. The directive also provides for the
possibility to return the equipment to the distributor or retailer at end-of-
life if purchasing equivalent new equipment, on a one-to-one basis, or one-to-
zero for equipment less than 25 cm on their longest side; · the equipment may
contain hazardous substances: the improper use or incorrect disposal of such
may have negative effects on human health and on the environment; · the symbol
(crossed-out wheeled bin, see Figure 1), if shown on the product or on the
packaging, indicates that the equipment must be disposed of separately at end-
of-life; · if at end-of-life the EEE contains a battery (Figure 2), this must
be removed following the instructions provided in the user manual before
disposing of the equipment. Used batteries must be taken to appropriate waste
collection centres as required by local regulations; · in the event of illegal
disposal of electrical and electronic waste, the penalties are specified by
local waste disposal legislation.
Warranty on materials: 2 years (from production date, excluding consumables).
Approval: the quality and safety of CAREL products are guaranteed by the ISO 9001 certified design and production system, as well as the
,
e
marks.
4 Warnings
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
PURPOSE OF THE MANUAL
This manual contains instructions for the installation, use and maintenance of
the models of chillBooster unit referred to in paragraph 4.4. The manufacturer
of the unit is:
CAREL INDUSTRIES Via dell’Industria, 11, 35020
Brugine – Padova (Italy) Tel. (+39) 049.9716611 – Fax (+39) 049.9716600
e-mail: carel@carel.com –
www.carel.com
2. HOW TO READ THE MANUAL
The manual is divided into chapters and paragraphs. Each paragraph is a sub-
level of the corresponding chapter. References to headings or paragraphs are
indicated by the abbreviation “Chap.” or “Par.” followed by the number.
Example: “Chap. 2” or “Par. 2.1”. The figures in this manual are numbered
consecutively according to the corresponding chapter, for example Figure 1.c
is the third figure in chapter one. References to the figures are indicated by
the abbreviation “fig.” followed by the number. Example: “Fig. 1.c”. The
components shown in the figures are marked with numbers. A reference to
component 1 in figure 2, chapter 3 will be indicated as follows: “See 1 – Fig.
3.b” or simply “(1 – Fig. 3.b)”.
IMPORTANT The figures shown in this manual are purely indicative. The
actual components may vary from those illustrated. If in doubt, contact an
authorised service centre. In addition to the instructions for installation,
use and maintenance, this manual contains safety information that requires
special attention. This information is denoted by the symbols described below:
DANGER Failure to comply with this warning will lead to an imminently
hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING Failure to comply with this warning will lead to potentially hazardous
situation which, if not avoided, could result in death or serious injury.
CAUTION Failure to comply with this warning will lead to a potentially
hazardous situation which, if not avoided, may result in minor or moderate
injury.
IMPORTANT Failure to comply with this warning will lead to a potentially
hazardous situation which, if not avoided, could cause minor damage to the
unit.
Notice: provides supplementary information to the above safety
instructions.
gaSteam +0300122EN rel. 1.0 – 01.12.2021
How to read the manual 7
ENG
GENERAL SAFETY INFORMATION AND INSTRUCTION
Intended use
The humidifier is designed and built exclusively to humidify rooms through
distribution systems (ducts). Any other use may be a source of danger that is
not contemplated in this manual and is therefore considered improper and
therefore is prohibited by the manufacturer, which declines all liability in
such cases.
General safety instructions
WARNING Failure to carefully heed the warnings shown in this manual could lead
to fire or explosion and consequent damage to property, injury or death.
WARNING Do not store or use petrol or other flammable vapours and liquids in the vicinity of the humidifier.
DANGER If you smell gas: 1. do not attempt to switch on any appliance; 2. do
not touch any electrical switches; do not use telephones in the building; 3.
call the gas supplier immediately from a phone in a safe place outside of the
building where the humidifier is installed. Fol-
low the instructions given by the gas supplier; 4. if you are unable to
contact the gas supplier, adopt the safety procedures in place in the country
where the humidifier is
installed.
The customer (manufacturer, designer or installer) accepts all liability and
risk relating to the configuration of the humidifier in order to reach the
expected results in relation to the specific final installation and/or
equipment. The manufacturer may, based on specific agreements, act as a
consultant for the installation/commissioning/use of the humidifier, however
in no case does it accept liability for the correct operation of the
humidifier and/or the final installation if the warnings or suggestions
provided in this manual or in other product technical documents are not
heeded.
In particular, as well as observing the above warnings and suggestions, the
following warnings must be observed with CAUTION for correct use of the
humidifier: · The humidifier contains live electrical components. Disconnect
the mains power supply before accessing inside parts or
during maintenance and installation. · The humidifier automatically and
constantly fills/drains certain quantities of water. Malfunctions in the
connections or in the
humidifier may cause leaks. · The humidifier contains high temperature
components and delivers steam at 100°C/212°F. · The installation of the
humidifier must include an earth connection, using the yellow-green terminal
provided. · Environmental and power supply conditions must conform to the
values specified on the humidifier’s labels. · All installation, use and
maintenance operations must be performed by specialist and qualified personnel
who are aware of
the necessary precautions and are capable of performing the operations
correctly and in accordance with the safety standards and legislation in force
in the country where the humidifier is installed. · Adjustment of all units
(covered by UL-998) from operation on natural gas (factory setting) to LPG
must only be carried out by personnel authorised button the manufacturer. ·
Only water with the characteristics indicated in this manual must be used to
produce steam (see par. 7.1.2). · All operations on the product must be
carried out according to the instructions provided in this manual and on the
labels applied to the humidifier. All uses or modifications not authorised by
the manufacturer are considered improper and therefore prohibited by the
manufacturer, which declines all liability is such cases. · Do not attempt to
open the humidifier in any way other than described in the manual. · For
anything not specified in this manual, comply with the regulations in force in
the country where the humidifier is installed. · Do not install and use the
humidifier near objects that may be damaged when in contact with water (or
condensate). The manufacturer declines all liability for direct or indirect
damage following water leaks from the humidifier. · Do not use corrosive
chemicals, solvents or aggressive detergents to clean the inside and outside
parts of the humidifier, unless specifically indicated in the user manual. ·
Do not drop, hit or shake the humidifier, as the inside parts and the linings
may be irreparably damaged,
IMPORTANT: The manufacturer adopts a policy of continual development and
consequently reserves the right to make changes and improvements to any
product described in this document. The technical specifications shown in the
manual may be changed without prior warning.
8 General safety information and instruction
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
Notice: the liability of the manufacturer in relation to its products is
specified in the general contract conditions, published on the website
www.carel.com and/or by specific agreements with customers; specifically, to
the extent where allowed by applicable legislation, in no case will the
manufacturer, its employees or subsidiaries/affiliates be liable for any lost
earnings or sales, losses of data and information, costs of replacement goods
or services, damage to things or people, downtime or any direct, indirect,
incidental, actual, punitive, exemplary, special or consequential damage of
any kind whatsoever, whether contractual, extra-contractual or due to
negligence, or any other liabilities deriving from the installation or use of
the product.
3.3 Personal protective equipment
DANGER Strictly follow the instructions provided in the manual.
Personal protective equipment (PPE) means any equipment intended to be worn
and kept by workers in order to protect themselves against one or more risks
likely to threaten their health or safety during work, as well as any device
or accessory intended for this purpose. All PPE described in this manual are
intended to protect personnel from health and safety risks.
Below is a list of personal protective equipment to be used and the procedures
to be adopted to protect workers from the residual risks that exist during the
various phases of the humidifier’s life cycle.
GLOVES TO PROTECT AGAINST PHYSICAL ELEMENTS: these must protect the person’s
hands against cuts, abrasion and heat. NON-SLIP SAFETY FOOTWEAR: these must
prevent falls on slippery surfaces and protect the person’s feet from impact,
crushing and puncture wounds. SAFETY HARD HAT: this must protect the person’s
head against bumps or material accidentally falling from above. SAFETY
GLASSES: these must protect the person’s eyes from all risks due to contact
with hazardous substances or materials. PROTECTIVE MASK: this protects the
wearer’s respiratory tract against all risks associated with the inhalation of
dangerous substances. PROTECTIVE CLOTHING: this guarantees the body adequate
protection against thermal and chemical agents. EARMUFFS: these must attenuate
noises that would otherwise be harmful to the person’s hearing. INSTRUCTION
MANUAL: this must be referred to whenever necessary, in order to avoid
adopting unsafe procedures.
gaSteam +0300122EN rel. 1.0 – 01.12.2021
General safety information and instruction 9
ENG
OVERVIEW
Description of the humidifier
The gaSteam (UG) humidifiers are gas-fired isothermal humidifiers for the
distribution of steam, and are equipped with a graphic touch display for easy
interaction with the user. Models available (identified by the part number
shown on the packaging label and on the rating plate): UG045, UG090, UG150,
UG180, UG300, UG450 with steam production capacity up to 450 kg/h (992 lb/h).
The humidifier is available both for indoor and outdoor installation, and
comes with the following certification: · 230 Vac models: CE; · 115 Vac
models: UL.
Components
Figure 4.a shows the configuration of the components on the indoor and outdoor
UG150 model. For the general configuration of the other models available, see
par. 4.4 – Dimensions by model.
1
3
29 28 27 26
2
4
5
6
25
8
9
11
10
15
13
7A
14
19 7B 12
22 21 20
24
18
19
17 23
16
Fig. 4.a
10 Overview
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
25
1
3
29 28 27 26
2
4
5
6
8
9
11
10
15
7A 14
7B 12
22 21
20
18 24
17 23
Fig. 4.b
Key:
1. disconnect switch 2. lock 3. fill solenoid valve 4. fill shut-off valve 5.
conductivity meter 6. overflow/drain pipe 7.A. water drain (CE indoor –
outdoor version) 7.B. water drain (UL outdoor version) 8. level sensor 9.
preheating temperature sensor 10. boiler 11. drain pump 12. fill pipe 13.
total boiler drain valve 14. tank drain 15. gas shut-off valve
16
16. 115-230V transformer (DIN version) 17. gas valve 18. combustion air
intake pipe 19. heater (accessory for CE version, supplied with UL ver-
sion) 20. flue gas exhaust pipe 21. safety thermostat 22. flame control board
23. ignition electrode 24. detection electrode 25. user terminal 26.
electrical panel fan 27. flue gas exhaust pipe 28. foam sensor 29. steam
outlet
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Overview 11
ENG
Packaging contents
IMPORTANT Before removing the packaging, move the humidifier to the site of
installation, following the instructions shown in Chap. 5 – Transport and
handling and in par. 4.5 – Positioning. Upon opening the packaging, check the
humidifier components (Fig. 4a) and the material supplied (par. 4.7).
Notice: if anything is missing when opening the package, contact the
manufacturer immediately to agree on the appropriate procedures to be adopted.
4.3 Dimensions and weights
Notice: models for outdoor installation are equipped with a rain cover (P –
Fig. 4.b), consequently the width and depth dimensions will vary slightly.
D
B
B
A
C A
P
E
E
300090_070_R02
Fig. 4.c
UG045 UG045 outdoor UG090 UG090 outdoor UG150 UG150 outdoor UG180 UG180 outdoor UG300 UG300 outdoor UG450 outdoor
A – mm (in) 1443 (57) 1443 (57) 1443 (57) 1443 (57) 1443 (57) –
C – mm (in) 1560 (61) 1560 (61) 1560 (61) 1560 (61) 1560 (61) 1620 (64)
B – mm (in) 656 (26) 656 (26) 656 (26) 993 (39) 993 (39) –
D – mm (in) 800 (31)
800 (31) 800 (31) 1107 (44) 1107 (44) 1668 (66)
E – mm (in) 1603 (63)
Weight- kg (lb)
Packaged Empty
255 (562)
240 (530)
270 (595)
255 (562)
255 (562)
240 (530)
270 (595)
255 (562)
255 (562)
240 (530)
270 (595)
255 (562)
355 (783)
340 (750)
370 (816)
355 (783)
355 (783)
340 (750)
370 (816)
355 (783)
550 (1213) 530 (1168)
Operating 440 (970) 455 (1003) 440 (970) 455 (1003) 440 (970) 455 (1003) 755
(1664) 770 (1698) 755 (1664) 770 (1698) 1150 (2535)
Tab. 4.a
12 Overview
gaSteam +0300122EN rel. 1.0 – 01.12.2021
4.4 Dimensions by model – mm (in)
4.4.1 Indoor models
1442 (56.8) 1282 (50.5) 1122 (44.2) 573(22.5)
657 (25.9) 613 (24.1)
291 (11.5)
1655 (65.2) 1601 (63) 1516 (59.7) 1396 (55) 1041 (41)
107 (4.2) 57 (2.2)
147 (5.8)
C G
D
274 (10.8) 118 (4.6)
E F 222 (8.7)
ENG
UG 45-90-150 indoor
H A B
82 (3.2)
M L
54 (2.1) 45(1.8) 4 (0.2)
406 (16)
728 (28.6)
Fig. 4.d
Key
Ref. Description A Flue gas outlet B Steam outlet C Water inlet D Drain
tempering (accessory) E Water drain
Ref. Description
F Tank drain G Drain column H Combustion air intake T Gas inlet M Flame
inspection opening
Tab. 4.b
Model
UG45 UG90 UG150
No. of burners Flue gas
outlets
1
1 X Ø 80(3.1)
1
1 X Ø 80(3.1)
1
1 X Ø 80(3.1)
Steam outlets Water inlet
1 X Ø 80(3.1) 1 X Ø 80(3.1) 1 X Ø 80(3.1)
1 X 1/2″G – F 1 X 1/2″G – F 1 X 1/2″G – F
Gas inlet
1 X 1″G – M 1 X 1″G – M 1 X 1″G – M
Air intake
1 X Ø 80(3.1) 1 X Ø 80(3.1) 1 X Ø 80(3.1)
Tank drain
1 X Ø 20(0.8) 1 X Ø 20(0.8) 1 X Ø 20(0.8)
Drain tempering (accessory) 3/4″ G – M 3/4″ G – M 3/4″ G – M
Tab. 4.c
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Overview 13
ENG
1443 (56.8) 936 (36.8) 715 (28.1) 340 (13.4) 180 (7.1)
UG 180-300 indoor
333 (13.1) 657 (25.9)
993 (39.1) 673 (26.5) 301 (11.8)
H A
80 (31.5)
B
106 (4.2)
519 (20.4)
55 (2.2)
C G
274 (10.8) 1041 (41) 1396 (55) 1516 (59.7) 1601 (63) 1655 (65.2)
M L
E
F
140 (5.5) 222 (8.7)
406 (16) 54 (2.1) 45(1.8) 4 (0.2)
118 (4.6)
873 (34.4)
Fig. 4.e
Key
Ref. Description A Flue gas outlet B Steam outlet C Water inlet D Drain
tempering (accessory) E Water drain
Ref. Description
F Tank drain G Drain column H Combustion air intake T Gas inlet M Flame
inspection opening
Tab. 4.d
Model
UG180 UG300
No. of burners Flue gas Steam outlets Water inlet
outlets
2
2 X Ø 80(3.1) 2 X Ø 80(3.1) 1 X 1/2″G – F
2
2 X Ø 80(3.1) 2 X Ø 80(3.1) 1 X 1/2″G – F
Gas inlet
Air intake
1 X 1″1/4 G – M 2 X Ø 80(3.1) 1 X 1″1/4 G -M 2 X Ø 80(3.1)
Tank drain
1 X Ø 20(0.8) 1 X Ø 20(0.8)
Drain tempering (accessory) 3/4″ G – M 3/4″ G – M
Tab. 4.e
14 Overview
gaSteam +0300122EN rel. 1.0 – 01.12.2021
4.4.2 Outdoor models
207 (8.1)
1610 (63.4) 1442 (56.8)
107 (4.2) 57 (2.2)
147 (5.8)
C1
815 (32) 713 (28) 613 (24.1)
70 (2.7)
D2 C2 E2
G
D1
1601 (63) 1516 (59.7) 1396(54.9) 1041 (41)
274 (10.8) 118(4.6)
E1
F
870 (34.2) 262 (10.3)
ENG
UG 45-90-150 outdoor
292 (11.5) 82 (3.2)
A
L
B H
406 (16)
1501 (59.1)
1490 (58.7) 728 (28.6)
Fig. 4.f
Key
Ref. Description A Flue gas outlet B Steam outlet C1 Water inlet (CE version)
C2 Water inlet (UL version) D1 Drain tempering (accessory) (CE version) D2
Drain tempering (UL version)
Ref. Description
E1 Water drain (CE version) E2 Water drain (UL version) F Tank drain G Drain
column H Combustion air intake T Gas inlet
Tab. 4.f
Model
UG45 UG90 UG150
No. of burners 1 1 1
Flue gas outlets 1 X Ø 80(3.1) 1 X Ø 80(3.1) 1 X Ø 80(3.1)
Steam outlets 1 X Ø 80(3.1) 1 X Ø 80(3.1) 1 X Ø 80(3.1)
Water inlet
1 X 1/2″G – F 1 X 1/2″G – F 1 X 1/2″G – F
Gas inlet
1 X 1″G – M 1 X 1″G – M 1 X 1″G – M
Air intake
1 X Ø 80(3.1) 1 X Ø 80(3.1) 1 X Ø 80(3.1)
Tank drain
1 X Ø 20(0.8) 1 X Ø 20(0.8) 1 X Ø 20(0.8)
Drain tempering (accessory) 3/4″ G – M 3/4″ G – M 3/4″ G – M
Tab. 4.g
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Overview 15
ENG
82 (3.2)
669 (26.3) 293 (11.5)
1192 (46.1) 1094 (43.1)
993 (39.1) 71 (2.8)
1608 (63.3) 1442 (56.8) 1232 (48.5)
D2 C2 E2
517 (20.3)
G
C1
A
D1
L
730 (28.7) 509 (20)
E1 F
380 (14.9) 240 (9.4)
B
118 (4.6)
UG 180-300 outdoor
108 (4.2) 57 (2.2)
406 (16) 1488 (58.5)
H
275 (10.8) 1041 (41) 1396 (54.9) 1516 (59.7) 1601 (63)
728 (28.6)
Fig. 4.g
Key
Ref. Description A Flue gas outlet B Steam outlet C1 Water inlet (CE version)
C2 Water inlet (UL version) D1 Drain tempering (accessory) (CE version) D2
Drain tempering (UL version)
Ref. Description
E1 Water drain (CE version) E2 Water drain (UL version) F Tank drain G Drain
column H Combustion air intake T Gas inlet
Tab. 4.h
Model
UG180 UG300
No. of burners 2 2
Flue gas outlets 2 X Ø 80(3.1) 2 X Ø 80(3.1)
Steam outlets 2 X Ø 80(3.1) 2 X Ø 80(3.1)
Water inlet
1 X 1/2″ G – F 1 X 1/2″ G – F
Gas inlet
1 X 1″1/4 G – M 1 X 1″1/4 G – M
Air intake
2 X Ø 80(3.1) 2 X Ø 80(3.1)
Tank drain
1 X Ø 20(0.8) 1 X Ø 20(0.8)
Drain tempering (accessory) 3/4″ G – M 3/4″ G – M
Tab. 4.i
16 Overview
gaSteam +0300122EN rel. 1.0 – 01.12.2021
1564 (61.6)
ENG
UG450 outdoor
1765 (69.5) 1585 (62.4)
298 (11.7)
741 (29.2) 686 (27)
313(12.3)
105 (4.1) 532 (20.9)
321 (12.6) 307 (12.1)
148 (5.8)
B
C1 D1
D2 C2 E2
G
121 (4.8)
E1
F
279 (11) 229 (9)
369 (14.5)
589 (23.2) 376 (14.8) 302 (11.9) 65 (2.5)
A L
397 (15.6)
H
1628 (64.1) 1512 (59.5)
1491 (58.7) 1402 (55.2) 1043 (41) 280 (11)
889 (35) 679 (26.7)
Fig. 4.h
Key
Ref. Description A Flue gas outlet B Steam outlet C1 Water inlet (CE version)
C2 Water inlet (UL version) D1 Drain tempering (accessory) (CE version) D2
Drain tempering (UL version)
Ref. Description
E1 Water drain (CE version) E2 Water drain (UL version) F Tank drain G Drain
column H Combustion air intake T Gas inlet
Tab. 4.j
Model UG450
No. of burners 3
Flue gas outlets 3 X Ø 80(3.1)
Steam outlets 3 X Ø 80(3.1)
Water inlet 2 X 1/2″ G – F
Gas inlet 1 X 1″1/2 G – M
Air intake 3 X Ø 80(3.1)
Tank drain 2 X Ø 20(0.8)
Drain tempering (accessory) 3/4″ G – M
Tab. 4.k
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Overview 17
ENG
4.5 Positioning
The humidifier must be positioned so as to allow the following operations: ·
opening the front panel; · accessibility to the electrical panel; ·
accessibility to the internal parts for checks and maintenance; · connection
to the feedwater line; · connection to the water drain line; · connection to
the air intake line; · connection to the flue gas exhaust line; · power and
control electrical connections;
The place where the humidifier is installed must also guarantee: · the most
suitable position for steam distribution, that is, the position that minimises
the length of the steam hose. · a base that can support the weight of the
humidifier in operation (see Table 4.a).
CAUTION: the metal casing of the humidifier heats up during operation, and the
top part may reach temperatures > 60°C (140°F); therefore make sure that this
does not cause any problems.
IMPORTANT: make sure that the combustion air intake grille is not blocked or
covered.
Notice: make sure the humidifier is level, and that the minimum clearances are
respected, as shown in the figure below, to allow room for maintenance
operations.
D
A
B
C
C
Fig. 4.i
Models with rear air intake outdoor
A – mm (in) 900 (35)
Models with air intake from top indoor
A – mm (in) 900 (35)
B – mm (in) 100 (4)
B – mm (in) 50 (2)
WARNING: before making the connections, disconnect the power supply by turning
the main switch (1 – Fig. 4.b) to OFF.
Fig. 4.j
Indoor models
1
C – mm (in) 600 (24)
D – mm (in) 1000 (39)
C – mm (in) 600 (24)
D – mm (in) 1000 (39)
Tab. 4.l
Outdoor models
1
18 Overview
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
4.6 Opening the front panel
Unscrew the screws using a suitable tool (A – Fig. 4.j), grasp the handles and
slide the panel slightly downwards to remove it.
A
Fig. 4.k
Notice: in the outdoor models, the front panel handles are supplied
disassembled. These should be assembled before opening the humidifier front
panel.
4.6.1 Accessing the electrical panel
Notice: the user terminal (T – Fig. 4.k) is located: · on the indoor model: mounted on the door and accessible from the outside; · on the outdoor model: inside the unit, in the electrical panel (Q – Fig. 4.k).
Indoor model
TS
T
Outdoor model
DL
Q B
T
L
Q
Fig. 4.l
Procedure: 30. Electrically disconnect the unit. 31. Loosen the screw (B –
Fig. 4.k) and open the door to
access the electrical panel (Q – Fig. 4.k).
Procedure: 1. Turn the disconnect switch (D – Fig. 4.k) OFF to electri-
cally disconnect the unit; 2. Turn the key in both locks (L – Fig. 4.k) and
open the
door to access the electrical panel (Q – – Fig. 4.k).
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Overview 19
ENG
4.7 Material supplied
Once the packaging has been opened and the front panel removed, make sure that
all of the components listed in the table and shown in Fig. 4.a are present.
Water circuit Water hose with compression fitting Threaded hose coupling Gas
shut-off valve Water shut-off valve with gasket Cable gland PG13.5 Cable gland
PG9 Weatherproof cover
Flue gas exhaust: Probe section Reducer (UL version) Elbow Condensate
collection section Flue gas inspection section Flue gas outlet terminal Flue
gas inspection flange with screws
UG45-90-150
indoor
outdoor
1
1
1
1
1
1
1
1
1
1
4
4
–
8
1
1
1
2
–
1
1
–
1
–
–
1
–
1
UG180-300 indoor
1
1 1 1 1 4 –
outdoor
1
1 1 1 1 4 10
2
2
2
4
–
2
2
–
2
–
–
2
–
2
UG450 outdoor
2
2 1 2 1 4 14
3 6 3 3 3
Tab. 4.m
Technical specifications
Rating plate
The humidifier can be identified by the rating plate placed on the partition
in the electrical cabinet. There is also a label showing the types of gas
allowed for each country and the corresponding supply pressures
(classification according to EN437).
TYPE Pnom kW Qnom kW G20(nat.gas) G25(nat.gas) Vac Hz PH kW kg / h IP NOx cl
Date
CODE
SerIiPal No. Date
Rev. Part No.
MADE IN …
CAREL INDUSTRIES Via dell’Industria, 11, 35020 Brugine (Padova) Italy
Fig. 4.m
Notice: tampering, removal or absence of the rating plate or anything
else that does not allow certain identification of the humidifier will make
any installation or maintenance operations difficult and void the warranty.
Touch display remote installation
To install the 4.3″ touch screen in a remote position, use kit P/N HCTXRC0000.
The kit comprises a touch display, a 24 Vdc power supply, a telephone cable
and a telephone splitter for simultaneous connection of the two displays (one
in the remote position and the other installed on the humidifier).
20 Overview
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
TRANSPORT AND HANDLING
DANGER: always place the humidifier on surfaces that are suitable to support
its weight.
WARNING: transport operations must be carried out by trained personnel using
certified equipment in good condition. Transport equipment and tools must be
suitable for the weight and characteristics of the humidifier.
WARNING: make sure that there are no unauthorised persons or things that could
obstruct the lifting and transport operations in the area where these are
performed.
WARNING: any other method of handling or transport not described in this
manual is considered unsuitable, dangerous and therefore not approved by the
manufacturer.
5.1 Transport
The humidifier is shipped already assembled, packed and secured to pallets
suitable for the weight of the humidifier by special straps. The places where
the forklift forks can be inserted are marked by special tags. To guarantee
correct handling, loading and anchoring of the packages, the manufacturer
checks all of the phases in the preparation of the packages and all of the
materials needed for transport before the humidifier is loaded on the vehicle,
and provides a delivery note (DDT) where the carrier can express any
reservations about the stability or suitability of the load for the vehicle in
question. Nonetheless, the recipient must scrupulously check the packages
before they are unloaded from the delivery vehicle. Notify the carrier
immediately, in writing, of any damage that may be due to improper or
negligent transport. Move the humidifier to the site of installation before
removing it from the packaging, grasping the neck from underneath using
suitable lifting equipment. Open the cardboard box, remove the protective
material and remove the unit, keeping it vertical at all times.
Notice: the packaging material must not be dispersed in the environment;
consequently, the different types of material must be separated and disposed
of by local waste disposal services, in accordance with the regulations in
force in the country where the humidifier is installed.
5.2 Handling
Handling operations must be carried out by qualified personnel, with an
assistant required for signalling. The lifting and transport equipment must be
of suitable capacity and chosen based on the dimensions, weight and shape of
the humidifier (Tab. 4.a). The capacity of the lifting equipment and
accessories must be greater (with a margin of safety) than the weight of the
loads being moved. Lifting movements must be continuous, without jerking or
sudden movements. During handling, nobody is allowed in the manoeuvring area;
the entire surrounding area is considered a danger zone. The handling operator
is responsible for verifying the stability of the humidifier before lifting
and handling it.
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Transport and handling 21
ENG
5.3 Table of residual risks and PPE for handling operators
PPE required: · Protective gloves · Non-slip safety footwear · Safety hard hat
· Instruction manual
Residual risk Risk of cutting or abrasion due to sharp edges or surfaces.
Risk of slipping, tripping or falling due to slippery surfaces in the
installation area. Risk of tripping and falling due to insufficient lighting.
Crushing risk due to suspended loads.
Crushing risk due to loss of stability during handling.
Procedure to be adopted Wear gloves to protect against physical agents and a
hard hat before entering the work area. Wear non-slip shoes.
The humidifier must be installed in an environment with medium intensity
lighting, in compliance with the regulations in force in the country where the
humidifier is installed. Display the pictogram prohibiting parking and transit
in areas where there are suspended loads. Strictly follow the instructions
described in this manual and on the labels affixed to the humidifier.
Tab. 5.a
DANGER: the mass and dimensions of the humidifier do not allow for manual handling under any conditions.
WARNING: the safety manager is responsible for assessing the need to equip handling operators with additional personal protective equipment in accordance with the environmental conditions where the operations are performed.
22 Transport and handling
gaSteam +0300122EN rel. 1.0 – 01.12.2021
INSTALLATION NOTES
System layouts
Below are some typical installations of gaSteam units for AHU/duct
applications.
gaSteam layout with ultimateSAM steam distributor
ENG
AROIAUTINLEUTSACIRITA
AERXIATEERSNTAELRANIRA
9
RECIRACURILAATDIOI N RICAIIRRCOLO
min 3xAD (min 3m/9.8 ft) AD
3
4
6 12 11 10
5
ARIRAEDTUI RRNIPARIERSA
1
ARIAODUITMLEATNADIRATA
2
Limit set point 90%
14 13
15
Fig. 6.a
Key: Ref. Description 1 Air intake probe 2 Limit probe 3 Steam distributor 4
Condensate drain trap 5 Condensate drain pipe 6 Steam hose 7 Signal / power
input 8 Gas inlet line
7 8
Ref. Description
9 Air flow switch 10 Water inlet shut-off valve 11 Filter (not supplied as
standard) 12 Water fill pipe 13 Water drain pipe 14 Elbow 15 Drain trap
Tab. 6.a
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Installation notes 23
ENG
gaSteam layout with DP series steam distributor
ARIOAUINTLUETSACIIRTA AREIXATEERSNTAELRNAIAR
RECIARCRUIALADTIION RICIARIRCOLO
min 3xAD (min 3m/9.8 ft) AD
9
3
12 11 10 6
4
5
ARIRAEDTUI RRNIPARIRESA
1
ARIAODUTI LMEAT NAIDRATA
2
Limit set point 90%
14 13
7
15
8
Fig. 6.b
Key:
Ref. Description 1 Air intake probe 2 Limit probe 3 Steam distributor 4
Condensate drain trap 5 Condensate drain pipe 6 Steam hose 7 Signal / power
input 8 Gas inlet line
Ref. Description
9 Air flow switch 10 Water inlet shut-off valve 11 Filter (not supplied as
standard) 12 Water fill pipe 13 Water drain pipe 14 Elbow 15 Drain trap
Tab. 6.b
Notice: · AD: Steam absorption distance (also see paragraph 8.1 Steam
distribution).
For a length equal to at least AD, there must be no obstacles of any type
downstream of the steam distributor. This ensures best absorption of the steam
into the air, thus avoiding the formation of condensate or wetting of parts
and components of the AHU/duct.
The limit probe must be placed three times further than the estimated
absorption distance (AD). If the estimated absorption distance is not known,
the limit probe must be placed at least 3 m from the distributor.
The suggested set point for the limit probe is 90% rH.
24 Installation notes
gaSteam +0300122EN rel. 1.0 – 01.12.2021
gaSteam layout for outdoor installation with connections at the bottom (US
market only)
OUT EOSFTTEHRENBOIUDLEDLILN’EGDIFICIO
ENG
Solaio copertura dell’edificio Building covering floor
Cordolo di supporto per il rialzo dell’unità
Unit support curb
INTERNO DELL’EDIFICIO IN OF THE BUILDING
Acqua di scarico
Drain water
Fig. 6.c
Carico acqua Water fill inlet
Carico drain tempering Drain tempering water inlet
Ingresso alimentazione elettrica 115V 60 HZ Electric power input 115V 60 HZ
Ingresso segnali per controllo (sonde, segnale ext, …) Control signal input
(probes, ext. signal, …)
Notice: · The water inlet pipes must be insulated to prevent condensation and
freezing.
Please, refer to the addendum manual (cod. +03U0124EN) for more USA market
installation details
6.2 Display “Main & Secondary” system
To obtain steam production higher than that provided by one single unit,
several humidifiers can be connected together in a Main/Secondary system. A
maximum of 19 Secondary units can be connected to each Main, meaning a total
of 20 humidifiers. The Main and Secondary units are connected using a local
Ethernet network, and in the case of just two units (one Main and Secondary)
involves a direct connection between the two controllers via Ethernet RJ45
Category 5 cable.
Main
Secondary
300090_033_R02
Fig. 6.d gaSteam +0300122EN rel. 1.0 – 01.12.2021
Installation notes 25
ENG
If the Main/Secondary system comprises three or more units, a network switch
is required.
Main
Secondary 1
…Secondary 19
300090_037_R02
Fig. 6.e The Ethernet port is available on the humidifier’s c.pHC controller:
M9
12
M2
12345678
M8
12
M12 M1
321 1 2
M5
12
M6
123
Fig. 6.f
Notice: use a CAT-5 STP Ethernet cable with a maximum length of 100 m. To
connect the shield, use the earth connector provided on the controller.
6.3 Switch for “Main & Secondary” connection
The Main/Secondary connection of more than two units requires the use of an
industrial grade switch. The switch (P/N: can connect a maximum of eight units
(8 Ethernet ports). If necessary, use several switches with a cascaded
arrangement.
Technical specifications:
Number of ports Installation Operating temperature Power supply
Current @ 24 Vdc Protection
8 DIN rail -10 to 60°C (14 to 140°F) 12/24/ 48 Vdc 18-30 Vac (47-63 Hz) 0.13A
IP30
Tab. 6.c
26 Installation notes
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
6.4 Type of “Main & Secondary” installation
The Main/Secondary system features one Main humidifier, which manages
operation of the Secondary units. The external signal or probe connections,
depending on the set control type, are made to just one of the humidifiers in
the system. The unit that the signal is connected to will automatically be
identified as the Main. Consequently, the Main does not need to be especially
configured.
Secondary
Main
Secondary
300090_040_R02
Fig. 6.g
main probe or external signal
As long as the Main unit is powered, the system will operate even if the Main unit itself has a malfunction (e.g. alarms, production stopped, …), as the controller on this unit will send all the necessary data to the Secondary units. Obviously, if system redundancy is not provided for, the amount of steam produced will be lower than actual requirements. If the Main unit is completely switched off, the Main/Secondary system cannot read the signals/control probes. Therefore, it is recommended to connect at least two (or all) of the humidifiers in the system to the external signal or to fit them with distinct probes.
Secondary
IP: 192.168.1.2
Main
IP: 192.168.1.1
Secondary
IP: 192.168.1.3
Fig. 6.h
main probe or external signal
main probe or external signal
gaSteam +0300122EN rel. 1.0 – 01.12.2021
300090_041_R02
Installation notes 27
ENG
6.5 Unit hardware backup
For applications that require continuous humidity control, a second backup
unit may be required, which is automatically activated in the event of a
malfunction on the first. The gaSteam controller features a dedicated digital
input and output for the backup connection, so as to guarantee, via the
normally-open contact, activation of the second unit.
Connection between two units for the hardware back-
unit
backup
up function:
backup IN/OUT
Terminal 9U 10U 2U 4U
Function Backup and rotation contact common Backup and rotation contact (NO)
GND Digital input for backup/rotation function
Tab. 6.d
Hardware backup
300090_044_R02
Fig. 6.i
Unit 1
Unit 2
M9
12
M2
12345678
M8
12
M9
12
M2
12345678
M8
12
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Fig. 6.j
The hardware backup function must be activated on the menu in screen Ee01.
Screen Ee02 is used to set the unit with higher priority in the event of
simultaneous activation. To ensure service continuity, the external signal or
probes must be connected to both units; in this way, both the main unit and
the backup unit will be completely independent. If using autonomous control
with probes, it is recommended to use dedicated probes for each unit (main
probe and limit probe), in other words, do not share the probes between the
units. This will guarantee service even in the event of probe malfunctions.
6.6 Supervisor protocols and configuration
The humidifier can be connected to a supervisor via serial (BMS) or Ethernet
network. The Carel, ModBus and BACnet protocols are supported as standard by
the units.
M9
12
M2
12345678
M8
12
M12 M1
321 1 2
M5
12
M6
123
Ethernet
21
Fig. 6.k
Key:
Port
Terminal on c.pHC controller Protocol
BMS (1) M12.1, M12.2, M12.3
Carel, ModBus, BACnet
Ethernet (2)
ModBus, BACnet
Tab. 6.e
To configure supervision on the BMS port (1), go to “SETTINGS SUPERVISION”, specifically screens Eh01, Eh02 and Eh03. If connecting the supervisor to the Ethernet port (2), set the network parameters (DHCP, IP address, subnet mask, gateway, DNS) on screen Eh04. For other supervisor protocols, select Carel protocol and use the Carel external gateway (supernode for humidification: SNU0000EM0), combined with the desired supervisor card (depending on the protocol).
28 Installation notes
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
Notice: · use CAT-5 STP Ethernet cable, max length = 100 m. To connect the
shield, use the earth connector provided on the controller. · For BMS and
Fieldbus, use shielded cables with the shield connected to earth.
6.7 gaSteam DigitalHUM service registration
The system can be connected to the DigitalHUM service, the cloud portal for
remote monitoring of Carel humidifiers. DigitalHUM allows remote control of
the units, with complete diagnostics for analysis of system operating
conditions and efficiency.
To activate the service, in addition to requesting activation of the
DigitalHUM cloud portal via a token, a CloudGate needs to be installed in
order to communicate with the humidifier via the Modbus RS485 protocol and in
turn remotely control the humidifier from DigitalHUM
(https://digitalhum.teraportal.com/).
Fig. 6.l
The connection diagram between the humidifier and CloudGate is shown below.
12 12
12345
123
J17C J17L
J3 J16 M3 J18
12
J21 J23
123456 12
J20
J24
21
J19
G
Depending on the CloudGate model used, either connect to the local network (LAN) or fit the mobile connection antenna, to allow the unit to communicate with the DigitalHUM portal. For further details, see the CloudGate technical leaflet (+0500150IE). For further information, contact your local Carel subsidiary (https:// www.carel.com/branches).
M9
12
M2
12345678
M8
12
M12 M1
321 1 2
M5
12
M6
123
Ethernet
shield
GND +
LAN FIELD
2
coppia intrecciata interfaced couple
IP
24V~/24V 20VA/9W
or L N 24 Vdc 230 Vac
Fig. 6.m
6.8 Built-in web server
The built-in web server is used to configure and monitor the main unit
parameters directly from a PC. In fact, using the Ethernet port on the
humidifier controller, the unit can be accessed via a local network by simply
entering its IP address in the browser.
24 Vac G G0 21 21 300090_121_R01
Fig. 6.n To log in and access the various menu items, use the installer or service password (see the chapter “Start-up and user interface”).
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Installation notes 29
ENG
6.9 Connecting to the built-in web server
For the physical connection to the controller from a PC, must use the RJ45
Ethernet port on the c.pHC and an Ethernet category 5 cable.
300090_043_R02
Fig. 6.o Location of the Ethernet port on the c.pHC controller.
M9
12
M2
12345678
M8
12
M12 M1
321 1 2
M5
12
M6
123
Fig. 6.p
Ethernet
The PC and the humidifier controller (or all controllers, for Main/Secondary
systems) must be part of the same subnetwork. The default network
configurations for the c.pHC are: · Unit’s IP address: 192.168.0.1; · subnet
mask: 255.255.255.0; · gateway: 192.168.0.1.
For example, the PC’s network settings can be changed as follows: · Unit’s IP
address: 192.168.0.2; · subnet mask: 255.255.255.0; · gateway: 192.168.0.1.
To do this, access the “Network and sharing center” on the PC and go to “Local
network connection”. Then modify the addresses, as shown above, for Internet
protocol version 4. Each c.pHC controller can obviously also be added to the
Ethernet local network, allowing the web server to be accessed from any point
in the network and for each humidifier.
IMPORTANT: the controller is not accessible directly on the internet as a firewall guarantees remote access only via a secure connection (Carel tERA cloud or encrypted VPN connection).
6.10 Wireless probe installation
For installations where standard wired probes can not be used, (for example,
modifications to existing systems), wireless probes can be used. These are
connected via a device called an access point (P/N: WS01AB2M20), for up to 4
wireless probes. The wireless probes available are for room installation
(WS01G01M00) or industrial applications (WS01F01M00), both of which measure
humidity and temperature. Installation diagram (with four wireless room
probes):
1
300090_047_R02
Fig. 6.q
2 3
Key:
4
1. gaSteam humidifier; 2. humidifier/access point
connection;
3. Access point;
4. Wireless probes for meas-
uring temperature and
humidity;
Tab. 6.f
30 Installation notes
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
gaSteam/access point connection: To connect the humidifier to the access
point, use the Fieldbus connection on terminal M3 (M3.1: Tx/Rx-, M3.2: Tx/Rx+,
M3.3: GND):
Fig. 6.r
Notice: the devices have a range of around a hundred metres in a free space, i.e. without any obstacles. In a closed space, the range varies considerably depending on the type of environment and the surrounding objects (shelves, metal partition walls etc.).
If installing multiple wireless probes, the controller will calculate the weighted average between the various probe readings, depending on the settings made by the user and the defined probe groups. Also see the paragraph “Wireless probes”. The controller also displays (locally only) the battery and signal level for each probe (screens D05 to D08). The table below shows the part numbers and descriptions of the devices that can be used:
Code WS01F01M00
Model SI sensor
Specifications Temperature/humidity
for industrial use
Power supply Battery
WS01G01M00
SA sensor
Room temperature/humidity
Battery
WS01AB2M20
Access Point
ZigBeeTM
12-24 Vac/dc ±10% 100 mA; 50/60 Hz;
RS485 Modbus® wireless gateway Use a Class II safety transformer
with a minimum power rating of 2 VA.
A 12 Vac transformer is recommended
Tab. 6.g
6.11 Wireless probe installation
The main steps for installing the wireless devices are: · power up the access
point (12/24 Vac/dc ±10%m, 100 mA) and complete the initialisation procedure,
creating the network
and selecting the channel; · after having opened the domain on the access
point, complete the binding procedure so as to uniquely identify each probe.
The address to be used by the access point is set using the dipswitches on the
device, and is the following:
L1L2 L3
DIP 1-2-3 nseeRltxew-zRioox+rnkGeNaiDndddirreizszsosdeilerectteion
DIP: 1 2 3 4 DIP 4 +bseal-uedzioran-tee+bsaeGuledcdtiiorente T1
Fig. 6.s
Dipswitch
1234 OFF ON OFF ON
Access Point Access Point 2
Serial port baud rate (bit/s) N82 19200
Tab. 6.h
This assigns the address 2 to the access point, with a baud rate (bit/sec) of 19200 (N82). The addresses of the four serial probes, on the other hand, must be set as shown in the table below:
Address Dipswitch
1
2
3
4
5
6
7
8
Probe 1
16
0
0
0
0
1
0
0
0
Probe 2
17
1
0
0
0
1
0
0
0
Probe 3
18
0
1
0
0
1
0
0
0
Probe 4
19
1
1
0
0
1
0
0
0
Tab. 6.i
Remember to verify the quality of the wireless signal between the access point
and each wireless probe. For a complete description of the installation
procedure, see the manual on the corresponding probes and access point. To
configure the probes, see screens: Ec03, Ec04, Ec05, Ec06 and Ec07 described
under “Wireless probes”. In particular, screen Ec03 is used to enable the
wireless probes connected to the access point, knowing that addresses 16, 17,
18 and 19 are Probe 1, Probe 2, Probe 3 and Probe 4 respectively.
Fig. 6.t
Configuration Ec03
Wireless probes
Probe 1: Probe 2: Probe 3: Probe 4:
Main probe Not used Not used Not used
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Installation notes 31
ENG
INSTALLATION
Piping connections
The humidifier requires a connection to the gas and water supply and water
drain pipes. The feedwater supply can be connected using a hose with a minimum
inside diameter (recommended) of 6 mm. Install a shut-off valve to allow the
appliance to be disconnected during maintenance. We recommend the use of hoses
(P/N FWH3415004), installing a mechanical filter to trap any solid impurities.
To make the connection: · drain water: use non-conductive plastic tubing
resistant up to 100°C (212°F), with an inside diameter of 50 mm (1.96″) (3A,
5A – Fig. 7.a); · gas supply: use a flexible metal pipe (with vibration
isolating joint) connected to a manual shut-off valve.
IMPORTANT: the drain pipe must not be obstructed, must not have back pressure
and must be fitted with a drain trap immediately downstream of the connection
to the humidifier.
2
2A
1
1A
300090_001_R02
3
3A 4
Fig. 7.a Ref. Description 1 gas supply connection 1A gas shut-off valve 2
water inlet connection 2A water inlet shut-off valve (recommended) 3 water
drain connection (CE indoor – outdoor version) 3A water drain pipe (CE indoor
– outdoor version) 4 tank drain connection 5 water drain connection (UL
outdoor version) 5A water drain pipe (UL outdoor version) 6 water fill and
drain tempering connections (UL outdoor version)
5
6
5A
Tab. 7.a
32 Installation
gaSteam +0300122EN rel. 1.0 – 01.12.2021
7.1.1 Water circuit connection diagram
ENG
IMPORTANT: the drain pipe must not be obstructed, must not have back pressure and must be fitted with a drain trap immediately downstream of the connection to the humidifier.
43
21 5 6
Fig. 7.b
300090_002_R01
Ref. Description 1 shut-off valve 2 filter (not supplied by the man-
ufacturer) 3 feedwater 4 optional reverse osmosis water
treatment system (not supplied by the manufacturer) 5 hose FWH3415004 6 hose
(drain tempering option, not supplied by the manufacturer)
Tab. 7.b
Notice: for the Australian market and to meet Watermark requirements, a Watermark approved double check valve must be installed on the humidifier feedwater line when connected to the potable water supply network. If, on the other hand, the humidifier is supplied with water from a reverse osmosis system connected to the potable water supply network, the double check valve must be installed on the inlet to the reverse osmosis system.
7.1.2 Feedwater
The feedwater supply to the humidifier must not be corrosive, must not emit
bad odours, and must not have an excessive lime content to avoid scale build-
up. The water supply must be potable or demineralised water, and must comply
with the limits shown in the following table. To reduce the frequency of
maintenance operations, the use of demineralised water is recommended. In this
case a reverse osmosis demineralisation system is recommended, which can be
supplied by the manufacturer on request.
IMPORTANT: water treatment with polyphosphates or water softeners is allowed, guaranteeing at least 60% of the initial hardness value and no less than 5°f. Softened water reduces maintenance however may increase the concentration of dissolved salts in the water inside the boiler, with the consequence of foam formation.
Notice: if supplied with water coming from an external reverse osmosis system, an instant flow-rate of 20 l/min (5.28 Gal/ min) must be guaranteed. For UG450, there are two inlets, therefore the instant flow-rate must be 2 x 20 l/min (2 x 5.28 US gal/min).
Specific conductivity at 20°C Total dissolved solids Dry residue at 180°C Hydrogen ion activity Total hardness Temporary hardness Chlorides Iron + Manganese Silica Residual chlorine Calcium sulphate Metallic impurities Solvents, thinners, detergents, lubricants
20 – S/cm TDS mg/l R180 mg/l pH TH mg/l CaCO3 mg/l CaCO3 ppm Cl mg/l Fe+Mn mg/l SIO2 mg/l Clmg/l CaSO4 mg/l mg/l
Min 0 (1) (1) 6 0 (2) 0 (3) 0 0
Max
1500
(1)
(1)
8.5
400
300
50 (4) (1) Values dependent on the specific conductivity; in gen-
0.2 20 0.2 100 0
eral: TDS 0.93 R, 20 °C; R180 0.65 R , 20 °C; (2) Not lower than 200% the chloride content in mg/l Cl-; (3) Not lower than 300% the chloride content in mg/l Cl-; (4) It may be necessary to adjust the drain rate to avoid a
0
concentration in the boiling water higher than 300 mg/l
Tab. 7.c Cl-.
7.1.3 Drain water characteristics
The drain water: · contains the same substances that are dissolved in the
supply water, yet in greater quantities; · can reach a temperature of 100°C
(212°F); · for drain tempering versions, water temperature will be 60°C
(140°F), with a ma inlet temperature of 25°C (77°F).
IMPORTANT: completely demineralised water is aggressive. For connection to a feedwater system with completely demineralised water, only use components made from chemically-resistant plastic (e.g. polypropylene) or stainless steel.
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Installation 33
ENG
7.1.4 Air intake and flue connections
Notice: the abbreviations that identify the various configurations for
installation refer to the EN 1749:2020 standard (classification of gas
appliances according to the method of supplying combustion air and of
evacuation of the combustion products). The gaSteam humidifier is an approved
type C appliance (sealed appliance) in accordance with EN 1749:2020. Regarding
the installation type, in accordance with EN 1749:2020, the following
configurations are possible: B23, C13, C33, C43, C53.
Notice: for non-CE versions, the legal requirements in force in the country
where the humidifier is installed apply.
Notice: the flue gas outlets on the indoor and outdoor models are identical.
IMPORTANT: the air intake pipes and flues must be installed and positioned
according to the corresponding legislation and standards in force, as well as
to the any national or local provisions, and therefore the validity of the
diagrams below should always be verified.
PANEL BOARD
G0 G 230 0
RF2 RF2
P FB1FB2 RD F1 F2 F3
BLOCK
TR
BLOCK
cPHC
Fig. 7.c
BLOCK
PANEL BOARD BOTTOM SIDE
FRONT
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
1T 2T 3T 4T 5T 6T 7T 8T 9T 10T 11T 12T 13T 14T
T
S
1S 2S 3S 4S 5S 6S 7S 8S 9S 10S 11S 12S 13S 14S
A
1A 2A 3A 4A
AL
L1 L2 GND
- Z
1Z 2Z 3Z 4Z 5Z 6Z 7Z 8Z 9Z 10Z 11Z 12Z
1Y 2Y 3Y 4Y 5Y 6Y 7Y 8Y 9Y
Y
1O 2O 3O 4O 5O 6O 7O 😯 9O
O
BACK
The air intake/flue gas exhaust pipes must be connected as shown in the following figure:
Ref. Description A Flue gas outlet B Combustion air intake
Tab. 7.d
For further requirements, use flue gas accessories available on the market. The maximum lengths specified in the following installation diagrams have been verified using the specified pipes. For the position of the combustion air intake and flue gas outlet, see “Dimensions by model”.
The indoor version is factory-set as follows: · flue gas outlet from the top of the humidifier; · air intake from the top of the humidifier.
Notice: fit the condensate collection section and connect a pipe to the hole on the side to drain the condensate and prevent it from causing the burner to malfunction.
34 Installation
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
Both the flue gas outlet and the combustion air intake can be moved using the accessories available, based on installation requirements, with reference to the pressure drop values shown in Tables 7.e, 7.f and 7.g.
Notice: the data shown in Tables 7.e, 7.f and 7.g refer to aluminium or stainless steel ducts.
UG45 max. 70 Pa (0.0101 PSI) linear section of pipe 90° bend r/d=0.5 90° bend r/d=1 45° bend r/d=0.5 flue exhaust terminal “T” section for condensate collection expansion in cross-section
Unit
Pa/m (PSI/ft) Pa (PSI) Pa (PSI) Pa (PSI) Pa (PSI) Pa (PSI) Pa (PSI)
d=80mm (3″) 2.5 (1.1 x 10-4) 6.4 (9.3 x 10-4) 2.6 (3.8 x 10-4) 3.2 (4.6 x 10-4) 7 (1 x 10-3) 7.7 (1.1 x 10-3) 1 (1.5 x 10-4)
DP
d=100mm (4″) 1 (1.5 x 10-4) 2.6 (3.8 x 10-4) 1 (1.5 x 10-4) 1.3 (1.9 x 10-4)
2.8 (4.1 x 10-4) 3.1 (4.5 x 10-4) 0.4 (5.8 x 10-5)
d=120mm (4″3/4) 0.4 (1.8 x 10-5) 1.2 (1.7 x 10-4) 0.5 (7.3 x 10-5) 0.6 (8.7 x
10-5) 1.4 (2 x 10-4) 1.5 (2.2 x 10-4) 0.2 (2.9 x 10-5)
Tab. 7.e
UG90 max. 70 Pa (0.0101 PSI)
UG180 max. 70 Pa (0.0101 PSI) linear section of pipe 90° bend r/d=0.5 90° bend
r/d=1 45° bend r/d=0.5 flue exhaust terminal “T” section for condensate
collection expansion in cross-section
Unit
Pa/m (PSI/ft) Pa (PSI) Pa (PSI) Pa (PSI) Pa (PSI) Pa (PSI) Pa (PSI)
d=80mm (3″)
2 x d=80mm (3″) 7.7 (1.1 x 10-3) 19.1 (2.8 x 10-3) 7.6 (1.1 x 10-3) 9.5 (1.4 x
10-3) 21 (3 x 10-3) 23 (3.3 x 10-3) 3 (4.4 x 10-4)
DP
d=100mm (4″)
2 x d=100mm (4″) 2.6 (3.8 x 10-4) 7.6 (1.1 x 10-3) 3 (4.4 x 10-4) 3.8 (5.5 x
10-4) 8.3 (1.2 x 10-3) 9 (1.3 x 10-3) 1.2 (1.7 x 10-4)
d=120mm (4″3/4)
2 x d=120mm (4″3/4) 1.1 (1.6 x 10-4) 3.6 (5.2 x 10-4) 1.5 (2.2 x 10-4) 1.8
(2.6 x 10-4) 4 (5.8 x 10-4) 4.3 (6.2 x 10-4) 0.6 (8.7 x 10-5)
Tab. 7.f
Unit
UG150 max. 260 Pa (0.0377 PSI)
d=80mm (3″) d=100mm (4″)
UG300 max. 260 Pa (0.0377 PSI)
2 x d=80mm (3″) 2 x d=100mm (4″)
UG450 max. 260 Pa (0.0377 PSI)
3 x d=80mm (3″) 3 x d=100mm (4″)
linear section of pipe
Pa/m (PSI/ft) 22.5 (9.9 x 10-3) 7.6 (3.4 x 10-4)
90° bend r/d=0.5
Pa (PSI)
66 (2.9 x 10-3)
26 (1.1 x 10-3)
90° bend r/d=1
Pa (PSI)
27 (1.2 x 10-3)
11 (4.9 x 10-4)
45° bend r/d=0.5
Pa (PSI)
33 (1.5 x 10-3)
13 (5.7 x 10-4)
flue exhaust terminal
Pa (PSI)
73 (3.2 x 10-3)
29 (1.3 x 10-4)
“T” section for condensate collection Pa (PSI)
79 (3.5 x 10-3)
32 (1.4 x 10-3)
expansion in cross-section
Pa (PSI)
10 (4.4 x 10-4)
4 (1.8 x 10-4)
DP
d=120mm (4″3/4)
2 x d=120mm (4″3/4)
3 x d=120mm (4″3/4) 4 (1.8 x 10-4) 12.3 (5.4 x 10-4) 5 (2.2 x 10-4) 6.2 (2.7 x
10-4) 13.6 (6 x 10-4) 15 (6.6 x 10-4) 1.9 (8.4 x 10-5)
d=150mm (6″)
2 x d=150mm (6″)
3 x d=150mm (6″) 1 (4.4 x 10-5) 5 (2.2 x 10-4) 2 (8.8 x 10-5) 2.5 (1.1 x 10-4)
5.5 (2.4 x 10-4) 6 (2.7 x 10-4) 0.8 (3.5 x 10-5)
Tab. 7.g
7.1.5 Appliance installation with air intake from the room
gaSteam humidifiers can be also installed as type B appliances in accordance
with EN 1749:2020, i.e. with air intake from the room where the appliance is
installed.
300090_003_R02
IMPORTANT: for flues greater than 2 m long, a condensate collection section or an appropriate drain is required.
B23
B23
Fig. 7.d
7.1.6 Checks
Verity that the water connections are correct, as follows: · the feedwater
supply line can be closed using a shut-off valve; · a mechanical filter is
installed on the feedwater line; · water temperature and pressure are within
the permitted values; · the drain pipe is resistant to operating temperatures
of 100°C (212°F); · minimum inside diameter of the drain pipe is 50 mm
(1″1/2); · minimum slope of the drain pipe is greater than or equal to 5°; ·
an inspection section is fitted with connection to a condensate drain.
IMPORTANT: once installation has been completed, to eliminate any waste and processing substances that may cause foam when the water is boiling, flush the water intake pipe by directing the water directly into the drain, without running it through the humidifier.
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Installation 35
ENG
8. STEAM DISTRIBUTION
8.1 Steam distribution
To achieve optimal humidifier efficiency, the steam produced must be
introduced into the room uniformly, in order to prevent the formation of
droplets and condensation. This is achieved using linear steam distributors.
The right steam distributor must be chosen according to the place where the
steam is to be introduced. Information on the absorption distance The steam
introduced into the AHU/duct must be absorbed by the air, and therefore a free
space without obstacles where condensation may form is required. This length,
downstream of the steam distributor, is defined as the non-wetting distance or
“absorption distance” (AD in the figure).
rH1 Air Flow
rH2 Limit probe
AD
3x AD
rH1: humidity upstream of the steam distributor
rH2: humidity downstream of the steam distributor
AD: absorption distance
Fig. 8.a
MDiinstimanuzma mdiinsitmanacperibmeafodrieunaalismonitdparloimbiete
MDiisntaimnzuammdiniismtaanpcreimbaedfoi ruenacocommpopnoennetnet
3x A D MDiinsitmanuzma mdiinsitmanacperibmeafodrieuna vfaentilatore
11.,55x ADDOOstbasctoalocle 22,5,5xx ADD NIenl
tchaesocdaisfeiltorfohaidgahlteaffiefcfiecinecnyzafilter
DMisintaimnzuammidnismtandcaeufnroamcuarvcaurve
AD AD
Fig. 8.b
8.1.1 Linear distributors for air ducts or AHUs
The steam distributors for AHU (air handling unit) or duct applications (sold
separately) deliver steam along their entire length in order to ensure the
shortest not-wetting distance. The distributor must be chosen based on: ·
maximum capacity required; · dimensions of the AHU/duct; · outlet diameter on
the humidifier it is connected to.
Notice: install away from any obstacles (curves, branches, changes in cross-
section, grilles, filters, fans). Minimum distance between distributor and
obstacle: 1 – 1.5 m (3.3 – 4.9 ft). Increase the distance in the event of: ·
increased air speed in the duct; · less turbulence.
36 Steam distribution
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
Mounting instructions (Fig. 8.c): · drill a series of holes in the wall of the pipe, using the drilling jig of the distributor (found in the packaging of the distributor); · insert the distributor with the steam outlet holes facing upwards; · fasten the distributor flange using four screws.
1 2 3 4
X
5
Fig. 8.c
X
ØA
ØB
ØY
Ø
f Ltot Lact
a
°2
Key
1. L-shaped mounting bracket (where featured)
2. flange gasket
3. steam inlet (ØA)
4. condensate drain (ØB)
5. flange screw (see technical leaflet supplied)
6. · Ltot = total length from the support to the end of
the pipe, including the cover (depending on the
6
model, see the paragraph “Linear distributors”);
· Lact = actual length used (from the first to the last
hole);
· a = distance from the support to the first hole;
· f = distance from the last hole to the end of the
7
pipe;
1. slope (about 2°) for condensate drainage
8
2. diameter of the hole in the wall (ØY)
Tab. 8.a
Dimensions – mm (in)
DP***D40R0
ØA
40 (1.6)
ØB
10 (0.4)
ØY
89 (3.5)
Ø
60 (2.4)
X
99 (3.9)
Tab. 8.b
Length L
Code
L tot
DP085D40R0 834
DP105D40R0 1015
DP125D40R0 1222
DP165D40R0 1636
DP205D40R0 2025
DP085D40RH 834
DP105D40RH 1015
DP125D40RH 1222
DP165D40RH 1636
DP205D40RH 2025
DP060D40RU 600
max kg/h 25 35 45
45 45 25
35 45 45 45 45
lbs/hr 55.07 77.09 99.12
99.12 99.12 55.07
77.09 99.12 99.12 99.12 99
Tab. 8.c
IMPORTANT: mount the distributor with a slight slope (at least 2°) to facilitate condensate drainage; The L-shaped support is supplied with steam distributor models from DP085 to DP205. For shorter lengths, the support can be supplied as an option (P/N 18C478A088).
8.1.2 High-efficiency linear distributors for air ducts or AHUs
High-efficiency linear distributors (sold separately), can be used in all
cases where the formation of condensate needs to be reduced inside the
distributor itself. All the information provided in the paragraph on linear
distributors still applies; the dimensions and diameters are shown below.
1 2
3 4
X L
Key
1. L-shaped mounting bracket (where
featured)
2. flange gasket
3. steam inlet (ØA)
4. condensate drain (ØB)
5. flange screw (see technical leaflet
supplied)
6. L = length (depending on the
model)
7. slope (about 2°) for condensate
drainage
6
8. diameter of the hole in the wall (ØY)
Tab. 8.d
X ØA
ØB ØY
Ø1
°2
5
Fig. 8.d
DP***D40RH
ØA
40 (1.6)
ØB
10 (0.4)
7
ØY
89 (3.5)
Ø
60 (2.4)
8
Ø1
80 (3.1)
X
99 (3.9)
Tab. 8.e
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Steam distribution 37
ENG
8.1.3 Linear distributor models and typical installations
gaSteam
humidifier outlet Ø mm
80
80
2 x 80 2 x 80 3 x 80
(3.1″)
(3.1″) (2 X 3.1″) (2x 3.1″) (3x 3.1″)
humidifier capacity kg/h
45
90
150 180
300 450
distributor inlet (ØA) mm (in)
max distributor capacity kg/h (lbs/h)
minimum width of duct/AHU mm (in)
part number
UG045 UG090 UG150 UG180 UG300 UG450
40 (1.6″)
25 (55)
850 (33.5″)
DP085D40RH 2
(4)**
40 (1.6″)
35 (77)
1050 (41.3″)
DP105D40RH 2
(4)**
40 (1.6″)
45 (99)
1250 (49.2″)
DP125D40RH 2
2
4
4
40 (1.6″)
45 (99)
1650 (65″)
DP165D40RH 2
2
4
4
40 (1.6″) 40 (1.6″)
45 (99) 25 (55)
2050 (80.7″) 850 (33.5″)
DP205D40RH
2
4
4
DP085D40R0 2
(4)**
See Fig. 8.h
40 (1.6″)
35 (77)
1050 (41.3″)
DP105D40R0 2
(4)**
40 (1.6″)
45 (99)
1250 (49.2″)
DP125D40R0 2
2
4
4
40 (1.6″)
45 (99)
1650 (65″)
DP165D40R0 2
2
4
4
40 (1.6″)
45 (99)
2050 (80.7″)
DP205D40R0
2
4
4
40 (1.6″)
45 (99)
600 (23.6″)
DP060D40RU 2
2
4
4
Tab. 8.f
if the duct does not feature the required width for the distributor, two shorter distributors (numbers indicated in brackets) can
be used, branching the steam hose.
*: use “Y” kit UEKY000000, 40 mm (1.6″) inlet and 2 x 30 mm (1.2″) outlets **: use “Y” kit UEKY40X400, 40 mm (1.6″) inlet and 2 x 40 mm (1.6″) outlets
For the typical installations of linear distributors, see the figure below:
1
2
min. 200 mm
70 mm
4
5
3
H >250 mm
1/3 H
200 mm
6
H >250 mm 1/3 H
200 mm
7
10
H >350 mm
2/5 H 1/5 H
H > 400 mm
2/5 H 1/5 H
8
min 200 mm
9
H >600 mm
2/7 H 2/7 H 1/7 H
H >300 mm
= =
11
H >500 mm
= 1/2 H =
H > 500 mm
2/7 H 2/7 H 1/7 H
H > 200 mm
= = = =
Fig. 8.e
= 1/3 H
1/3 H =
Note: the arrows indicate the air flow.
38 Steam distribution
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Vertical installation of DP series steam distributors. Bracket for vertical
mounting of DP* series linear steam distributors. DP00VM3000 bracket for
distributors with Ø 30 mm steam inlet (DP*D30R); DP00VM4000 bracket for
distributors with Ø 40 mm steam inlet (DPD40R*);
H250 mm
ENG
Tab. 8.g
300090_067_R02
Fig. 8.f Typical installations of gaSteam series gas-fired humidifiers:
UG045 e UG090
Steam outlet: 1 x Ø 80 mm
Ø 40 mm
(1312367AXX)
2
1
Ø 80 mm Steam hose or pipe (1312461AXX)
UG180
Steam outlet: 2 x Ø 80 mm
2 1
Ø 40 mm (1312367AXX)
2
Ø 80 mm Steam hose or pipe (1312461AXX)
or
or
1
Ø 80 mm Steam hose or pipe (1312461AXX)
Fig. 8.g gaSteam +0300122EN rel. 1.0 – 01.12.2021
1
Ø 80 mm Steam hose or pipe (1312461AXX)
or UG180 (OUTDOOR)
Steam outlet: 2 x Ø 80 mm
2 4
Ø 40 mm Steam hose or pipe (1312367AXX)
Steam distribution 39
300090_068_R02
ENG
UG150
Steam outlet: 1 x Ø 80 mm
Ø 40 mm (1312367AXX)
3
1
Ø 80 mm
Steam hose or pipe
(1312461AXX)
UG300
Steam outlet: 2 x Ø 80 mm
1
or UG450
Steam outlet: (2+1) x Ø 80 mm
1
Ø 80 mm Steam hose or pipe (1312461AXX)
1
1
Ø 80 mm Steam hose or pipe (1312461AXX)
Fig. 8.h
Key:
Ref 1 2 3 4
Code SAKIT80100 SAKIT40200 SAKIT40400 SAKIX80100
Ø 80 mm
Steam hose or pipe (1312461AXX)
Tab. 8.h
8.1.4 Steam hose
Warnings: · use CAREL hoses (max length = 4 m / 3.3 ft, see par. 8.1.5); ·
avoid the formation of pockets or traps (these cause condensate accumulation);
· avoid choking the hose with sharp bends or twists; · use metal clamps to
secure the ends of the hose to the connections on the humidifier and the steam
distributor so that they
do not come loose due to the high temperatures; · avoid strain, including
mechanical stress on the boiler steam outlet spigot; · do not use a steam hose
with a smaller cross-section than the diameter suggested in the manual; · do
not install valves or other similar devices in the section of steam hose
between the humidifier and the distributor; · do not use the steam hose
outdoors to avoid premature deterioration; · allow space for maintenance in
the area surrounding the steam hoses; · if using two steam distributors
connected to a single outlet, install a “Y” fitting as close as possible to
the distributors. This will
reduce the formation of condensate.
Steam hose
P/N 1312461AXX 1312367AXX
ø 80 (3) ø 40 (1″1/2)
Diameter mm (in)
Maximum radius of curvature mm (in) 250 (10) 110 (4)
Tab. 8.i
8.1.5 Steam hose models
humidifier model: steam outlet Ø mm (in): maximum capacity kg/h (lb/h): 1312461AXX
UG045 1 x 80 (3.1″) 45 (99)
UG090 1 x 80 (3.1″) 90 (198)
UG150 1 x 80 (3.1″) 150 (330)
UG180 2 x 80 (3.1″) 180 (396)
UG300 2 x 80 (3.1″) 300 (661)
UG450 3 x 80 (3.1″) 450 992()
Tab. 8.j
40 Steam distribution
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
8.1.6 Condensate drain pipe
During operation of the humidifier, part of the steam may condense, causing a
decline in efficiency and noise (gurgling). To drain the condensate, connect
to the distributor (Fig. 8.g) drain spigot (Fig. 8.f ) a drain pipe with a
trap and a minimum slope of 5°. The condensate drain pipe must be connected to
the drain water pipe.
Condensate drain pipe
P/N 1312368AXX 1312353APG CHOSE00516 (UL version) CHOSE0038 (UL version)
Diameter mm (in) ø 10 (3/8) ø 7 (1/4) ø 7.9 (5/16) ø 9.5 (3/8)
Tab. 8.k
IMPORTANT the condensate drain trap must be filled with water prior to turning
on the humidifier.
Below are some requirements and installation examples of the steam hoses and
condensate drain pipes: · instructions provided in this chapter, the steam
outlet hoses are aimed upwards and the distributor has an upwards slope of
at least 2°; · any curves in the pipes or hoses are sufficiently wide (radius
500 mm – 20 in) so as to not cause bending or choking; · the paths of the steam hose and condensate pipe comply with the instructions provided in this chapter; · the slope of the steam hose is sufficient to allow correct condensate drainage (> 5° for downward sections); · the slope of the condensate drain pipe is at least 5° at every point; · the condensate drain pipe is fitted with a drain trap (filled with water before starting) to prevent steam from escaping; · do not use a condensate drain pipe with a smaller cross-section than the diameter suggested in the manual; · the drain trap must be positioned under the steam distributor. The minimum distance from the distributor to the highest
point of the drain trap must be at least 300mm (11.81in).
/= 2° Ø > 200mm
5°
R > 500 mm
R > 500 mm
/= 2° Ø > 200mm
H 300 mm H 300 mm H 300 mm
H 300 mm
Fig. 8.i
Fig. 8.j
NO
300090_016_R02
Fig. 8.k gaSteam +0300122EN rel. 1.0 – 01.12.2021
Steam distribution 41
ENG
Outlet pressure limits The back-pressure at the boiler outlet, either positive
or negative, depends both on the relative pressure in the duct/AHU and the
pressure drop in the steam hose, due to bends or adapters, and the steam
distributor. The steam hoses have a pressure drop of around 150 Pa/m (0.021
psi) (in compliance with the maximum recommended flow-rate). The DP series
linear distributors have a pressure drop of around 25 Pa (0.003psi) (in
compliance with the maximum recommended flow-rate).
Considering these values, the boiler outlet pressure must be: · boiler outlet
pressure > 150 [Pa/m] steam hose length [m] + 25 [Pa] DP + pressure in
duct/AHU [Pa]
Boiler outlet pressure values for gaSteam: pressure limits at boiler outlet Pa (PSI)
UG045
UG090 UG150 UG180 0 – 2000 (0 – 0.290)
UG300
UG450 Tab. 8.l
Notice: a pressure of around -200 Pa (-0.029 psi) at the boiler outlet corresponds to around 20 mm (0.78″) of water inside the boiler (for all sizes).
Guidelines for sizing the steam distribution hose Below are the tables for sizing the maximum length of the Carel steam hose based on the diameter.
Carel steam hose
Hose inside diameter
Maximum steam load
[mm] [inches] [kg/h] [lbs/h]
22
0.866
9
20
30
1.181
21
46
40
1.574
45
100
80
3.149
150
330
· the values shown in the table refer to a linear section of pipe;
· the data shown in the table refer to steam at atmospheric pressure;
· the maximum pressure drop considered in this table is 1300Pa.
Maximum distance
[m] [ft]
4
13
4
13
4
13
4
13
Tab. 8.m
When sizing the humidification load, the loss due to condensate along the steam hose must also be taken into consideration. The estimated condensate per linear metre according to the diameter of the Carel steam hose are shown below.
Hose inside diameter
[mm] [inches]
22
0.866
Steam hose
30 40
1.181 1.574
80
3.149
· the data shown in the table refer to steam at atmospheric pressure;
· the data refer to Carel steam hoses without thermal insulation;
· the data refer to an ambient temperature of 20°C (68°F).
Condensate [kg/h/m] 0.15 0.18 0.22 0.33
[lbs/hr/ft] 0.33 0.40 0.48 0.73
Tab. 8.n
If the distance between the humidifier and the steam distributor is greater
than 4 m, a suitably-sized steel (recommended) or copper pipe can be used,
referring the data shown in the table below.
The tables therefore show the diameters of the pipes to be installed (not
supplied by Carel) and the corresponding estimated condensate formation
according to the distance to be covered.
Pipe inside diameter [mm] 40 50 65 80 100
[inches] 1″1/2 2 2″1/2 3 4
Steel or copper pipe
Maximum steam load
[kg/h] [lbs/h]
45
100
45
100
90
198
180
397
300
660
· the values shown in the table refer to a linear section of pipe; · the data shown in the table refer to steam at atmospheric pressure; · the maximum pressure drop considered in this table is 1300Pa.
Maximum distance
[m] [ft]
8
26
15
49
22
72
20
66
25
82
Tab. 8.o
42 Steam distribution
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
Pipe inside diameter
[mm] [inches]
40
1″1/2
steel or copper pipe
50 65 80
2 2″1/2 3
100
4
Non-insulated pipe
[kg/h/m] [lbs/hr/ft]
0.27
0.59
0.32
0.70
0.38
0.83
0.46
1.00
0.54
1.19
· the data shown in the table refer to steam at atmospheric pressure; · the data refer to an ambient temperature of 20°C (68°F).
Condensate
Insulated pipe
[kg/h/m] [lbs/hr/ft]
0.02
0,044
0.03
0,066
0.03
0,066
0.03
0,066
0.03
0,066
Insulation thickness
[mm] [inches]
50
1.96
50
1.96
50
1.96
60
2.36
70
2.75
Tab. 8.p
Tips for the correct installation of steam and condensate pipes for lengths
greater than 4 m (13 ft): · the steam distribution line must have “T” fittings
for the condensate drain. The distance between two “T” fittings must not
exceed 5 m (16 ft); · downstream of each “T” fitting there must be a drain
with a train trap, minimum diameter 200 mm (8″), to prevent steam from
escaping; · the condensate drain line must always be positioned lower than the
steam line; · for steam lines that change from horizontal to vertical, a
condensate drain must be provided at the lowest point on the line; · the
condensate drain line must have a minimum slop of 5° to facilitate drainage; ·
condensate from the ultimateSAM distributor or more complex systems must be
connected to water temperature reduction
devices (if required) before being discharged into the building’s drain line.
Excessive quantities of condensate (for example, deriving from multiple
ultimateSAM distributors) must not be carried into the humidifier; · each
individual condensate drain line must be fitted with a drain trap before
running to the main drain line; · the condensate drain line must have no
restrictions in size and the drain trap must be filled with water before
starting.
SLtineeaamVaLpionree
CLoinneda edinSscaatreicoDCroanindeLninsae
Minimum inclination 5 °
Inclinazione Minima 5°
MinInimcliunamzioinneclMininaitmioan5°5 °
MinimInuclminaizniocnlienMatinioimna55°°
min 300 mm (12 in) min 200 mm (8 in) min 300 mm (12 in) min 200 mm (8 in)
MInicnliinmazuiomneinMcinliinmaati2o°n 2 ° Fig. 8.l
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Steam distribution 43
ENG
9. ELECTRICAL CONNECTIONS
9.1 Electrical connections
DANGER: in accordance with the regulations in force in the country where the
humidifier is installed, the manufacturer recommends using a suitable circuit
breaker to protect against overload and overcurrent upstream of the
humidifier’s power line. The installer is responsible for selecting and
installing this device (not supplied by the manufacturer).
9.1.1 Wiring requirements
The cables entering the humidifier must pass through the cable glands on the
side (1 – Fig. 9.a) or at the bottom (2 – Fig. 9.a, UL outdoor versions only).
300090_017_R02
1 2
Fig. 9.a
9.1.2 Power cable
Before making the electrical connections, disconnect the unit from the mains
power supply. Check that the humidifier’s power supply voltage corresponds to
the rated value shown inside the electrical panel.
300090_018_R02
230 V/50 Hz version Run the power and earth wires into the electrical panel through the tear-resistant cable gland supplied, and connect the ends to terminals on the DIN rail.
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
1T 2T 3T 4T 5T 6T 7T 8T 9T 10T 11T 12T 13T 14T
T
A
1A 2A 3A 4A
S
1S 2S 3S 4S 5S 6S 7S 8S 9S 10S 11S 12S 13S 14S
AL
L1 L2 GND
12Z
1Y 2Y 3Y 4Y 5Y 6Y 7Y 8Y 9Y
Y
9O
O
AL
L N GND
L1 L2 GND
Fig. 9.b
115V/60Hz version Run the power and earth wires into the electrical panel
through the tear-resistant cable gland supplied, and connect the ends to the
terminals on the DIN rail, connected directly to the main transformer (primary
115 V, secondary 230 V).
300090_019_R02
Notice: to avoid unwanted interfer-
ence, the power cables should be kept sepa-
rate from the probe signal cables.
GND L
N
Fig. 9.c IMPORTANT: connect the yellow-green wire to the earth terminal (GND).
44 Electrical connections
to the transformer (connection by Carel)
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
9.1.3 Power supply
The humidifier power line must be fitted by the installer with a disconnect
switch and protection fuses. The table shows the recommended size of the power
cable and fuse ratings. These data are purely indicative; local regulations
must always prevail.
mod. UG045HD005 UG045YD005
UG090HD005 UG090YD005
UG150HD005 UG150YD005
UG180HD005 UG180YD005
UG300HD005 UG300YD005
UG450YD005
power supply
temperat. °C voltage
(°F)
V (1)
0 to 45 (32 to 113) 0 to 45 (32 to 113) -25 to 45 (-13 to 113)(*) -40 to 45 (-40 to 113)() 0 to 45 (32 to 113) 0 to 45 (32 to 113) -25 to 45 (-13 to 113)(*) -40 to 45 (-40 to 113)(*) 0 to 45 (32 to 113) 0 to 45 (32 to 113) -25 to 45 (-13 to 113)() -40 to 45 (-40 to 113)() 0 to 45 (32 to 113) 0 to 45 (32 to 113) -25 to 45 (-13 to 113)(*) -40 to 45 (-40 to 113)() 0 to 45 (32 to 113) 0 to 45 (32 to 113) -25 to 45 (-13 to 113)(*) -40 to 45 (-40 to 113)(*) 0 to 45 (32 to 113) -25 to 45 (-13 to 113)() -40 to 45 (-40 to 113)()
230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz 230V 1PH~ 50 Hz
rated characteristics
current A
power W (2)
production kg/h no. of
cable size mm2 AWG line fuses
(2)
A – type (2)
UG line
heater UG line line
heater (lbs/h) line (3)
heaters UG line
heater line
UG line
heater line
0.82 –
187 –
45 (100) –
2.5 – AWG –
10 – F –
14
1.08 –
248 –
45 (100) –
2.5 – AWG –
10 – F –
14
1.08 4.34 248 1000 45 (100) 1
2.5 – AWG 2.5 – AWG 10 – F 10 – F
14
14
1.08 8.69 248 2000 45 (100) 2
2.5 – AWG 2.5 – AWG 10 – F 16 – F
14
14
1.11 –
255 –
90 (200) –
2.5 – AWG –
10 – F –
14
1.37 –
315 –
90 (200) –
2.5 – AWG –
10 – F –
14
1.37 4.34 315 1000 90 (200) 1
2.5 – AWG 2.5 – AWG 10 – F 10 – F
14
14
1.37 8.69 315 2000 90 (200) 2
2.5 – AWG 2.5 – AWG 10 – F 16 – F
14
14
1.34 –
309 –
150 (330) –
2.5 – AWG –
10 – F –
14
1.60 –
368 –
150 (330) –
2.5 – AWG –
10 – F –
14
1.60 4.34 368 1000 150 (330) 1
2.5 – AWG 2.5 – AWG 10 – F 10 – F
14
14
1.60 8.69 368 2000 150 (330) 2
2.5 – AWG 2.5 – AWG 10 – F 16 – F
14
14
1.69 –
389 –
180 (400) –
2.5 – AWG –
10 – F –
14
2.21 –
509 –
180 (400) –
2.5 – AWG –
10 – F –
14
2.21 4.34 509 1000 180 (400) 1
2.5 – AWG 2.5 – AWG 10 – F 10 – F
14
14
2.21 8.69 509 2000 180 (400) 2
2.5 – AWG 2.5 – AWG 10 – F 16 – F
14
14
2.17 –
500 –
300 (660) –
2.5 – AWG –
10 – F –
14
2.69 –
619 –
300 (660) –
2.5 – AWG –
10 – F –
14
2.69 4.34 619 1000 300 (660) 1
2.5 – AWG 2.5 – AWG 10 – F 10 – F
14
14
2.69 8.69 619 2000 300 (660) 2
2.5 – AWG 2.5 – AWG 10 – F 16 – F
14
14
4.03 –
927 –
450 (990) –
2.5 – AWG –
10 – F –
14
4.03 8.69 927 2000 450 (990) 2
2.5 – AWG 2.5 – AWG 10 – F 16 – F
14
14
4.03 17.39 927 4000 450 (990) 4
2.5 – AWG 6 – AWG 10 10 – F 25 – F
14
Tab. 9.a
(1) Tolerance allowed on the nominal mains voltage: -15% +10% Tolerance
allowed on the nominal mains frequency: ± 1 %.
(2) Recommended values; referred to cables laid in closed PVC or rubber
conduits 20 m long. (3) Instant steam production: average steam production may
be affected by external factors, such as: ambient temperature,
water quality, steam distribution system. (*) = Optional 1 heater. (**) =
Optional 2 heaters.
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Electrical connections 45
ENG
mod. UG045H1105 UG045X1105 UG090H1105 UG090X1105 UG150H1105 UG150X1105 UG180H1105 UG180X1105 UG300H1105 UG300X1105 UG450X1105
power supply
temperature °C (°F)
voltage V (1)
0 to 45
115V 1PH~
(32 to 113) 60 Hz
-40 to 45 115V 1PH~
(-40 to 113) 60 Hz
0 to 45
115V 1PH~
(32 to 113) 60 Hz
-40 to 45 115V 1PH~
(-40 to 113) 60 Hz
0 to 45
115V 1PH~
(32 to 113) 60 Hz
-40 to 45 115V 1PH~
(-40 to 113) 60 Hz
0 to 45
115V 1PH~
(32 to 113) 60 Hz
-40 to 45 115V 1PH~
(-40 to 113) 60 Hz
0 to 45
115V 1PH~
(32 to 113) 60 Hz
-40 to 45 115V 1PH~
(-40 to 113) 60 Hz
-40 to 45 115V 1PH~
(-40 to 113) 60 Hz
rated characteristics
current A
power W (2)
UG line
heater line
UG line
heater line
1.64 –
187 –
2.16 17.39 248 2000
2.22 –
255 –
2.71 17.39 312 2000
2.68 –
309 –
3.20 17.39 368 2000
3.38 –
389 –
4.42 17.39 509 2000
4.34 –
500 –
5.38 17.39 619 2000
8.06 34.78 927 4000
production kg/h (lbs/h) (3)
no. of cable size mm2 AWG (2)
heaters UG line
heater line
45 (100) –
2.5 – AWG 14
line fuses
A – type (2)
UG line
line heaters
10 – F
45 (100) 2
2.5 – AWG 14 6 – AWG 10 10 – F 25 – F
90 (200) –
2.5 – AWG 14
10 – F
90 (200) 2
2.5 – AWG 14
10 – F 25 – F
150
–
(330)
150
2
(330)
180
–
(400)
180
2
(400)
300
–
(660)
300
2
(660)
450
4
(990)
2.5 – AWG 14
10 – F
2.5 – AWG 14 6 – AWG 10 10 – F 25 – F
2.5 – AWG 14
10 – F
2.5 – AWG 14 6 – AWG 10 10 – F 25 – F
2.5 – AWG 14
10 – F
2.5 – AWG 14 6 – AWG 10 10 – F 25 – F
2.5 – AWG 14 16 – AWG 4 10 – F 50 – F
Tab. 9.b
(1) Tolerance allowed on the nominal mains voltage: -15% +10% Tolerance
allowed on the nominal mains frequency: ± 1 %.
(2) Recommended values; referred to cables laid in closed PVC or rubber
conduits 20 m long. (3) Instant steam production: average steam production may
be affected by external factors, such as: ambient temperature,
water quality, steam distribution system.
Notice: the power cable must be sized in compliance with the local regulations
in force. The humidifier power supply line must be equipped with an disconnect
switch and protection fuses suitably sized for the short-circuit current, to
be fitted by the installer.
Notice: on the outdoor models, the heaters, where featured, must have its own
independent power supply line, not shared with the humidifier.
9.1.4 Auxiliary circuit transformer
The multi-voltage auxiliary circuit transformer has a primary winding for 230
V (protected by fuses, 10.3×38 mm) and a secondary winding (24 V). The
transformer is connected and checked in the factory, according to the rated
voltage.
9.1.5 Main control board
The auxiliary connections must be made by inserting the cables into the
electrical panel compartment through the cable glands on the side (1 – Fig.
9.i) or on the bottom of the humidifier (2 – Fig. 9.a, UL outdoor versions
only). It is recommended to secure the probe, remote ON/OFF contact connection
cables etc. with appropriate cable ties, in order to prevent disconnection.
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
1T 2T 3T 4T 5T 6T 7T 8T 9T 10T 11T 12T 13T 14T
T
A
1A 2A 3A 4A
S
1S 2S 3S 4S 5S 6S 7S 8S 9S 10S 11S 12S 13S 14S
AL
L1 L2 GND
- Z
1Z 2Z 3Z 4Z 5Z 6Z 7Z 8Z 9Z 10Z 11Z 12Z
1Y 2Y 3Y 4Y 5Y 6Y 7Y 8Y 9Y
Y
1O 2O 3O 4O 5O 6O 7O 😯 9O
O
Fig. 9.d
Notice: terminal block Z is only available on UG180.
46 Electrical connections
gaSteam +0300122EN rel. 1.0 – 01.12.2021
c.pHC control board
ENG
21
GND L+ LNO C C NC NO
21
12 12
12345
123
J17C J17L
J3 J16 M3 J18
G
12
J21 J23
123456 12
J20
J24
21
J19
M9
12
M2
12345678
M8
12
M12 M1
321 1 2
M5
12
M6
123
Ethernet
Remote ON/OFF
GND
limit probe
main probe ext. regulator
GND 12Vdc
Fig. 9.e
Control signal
Terminal
M1
M1.1
M1.2
M2
M2.1
M2.2 M2.3
G M2.4
M2.5 M2.6 M2.7 M2.8
M3
M3.1
M3.2
M3.3
M5
M5.1
M5.2
M6
M6.1
M6.2
M6.3
M8
M8.1
M8.2
M9
M9.1
M9.2
M11
M12 M12.1
M12.2
M12.3
J18
J19
J19.1
J19.2
Function GND (G0) Controller power supply Main room probe input or signal from
external controller GND Probe power supply (+G)
Probe power supply (+G) Digital input for backup/rotation function
Limit humidity probe signal input GND GND Remote on/off contact digital input
Fieldbus
Unit status contact (NO) Unit status contact common Alarm common NC alarm
contact NO alarm contact Production request analogue output GND Backup and
rotation contact common Backup and rotation NO contact Ethernet port
BMS 485
Earth connection
pLAN/display terminal Auxiliary/blower contact Auxiliary/blower contact common
(NO) USB port (type A)
Ethernet RJ45 port
RS485 Serial
Unit Alarm status relay
relay
Electrical specifications
24Vac +10%/-15% 50/60Hz 0 to 1V, 0 to 10V, 2 to 10V, 0 to 20mA, 4 to 20mA, NTC
10 k at 25 °C
+12 Vdc, maximum current that can be delivered 50 mA; Short-circuit protection
0-10 V Maximum output current: 5 mA: Maximum voltage with open contact: 13Vdc
0 to 1V, 0 to 10V, 2 to 10V, 0 to 20mA, 4 to 20mA, NTC
Maximum output current: 5 mA: Maximum voltage with open contact: 13Vdc
Tx/RxTx/Rx+ GND 250 Vac; 2 A with resistive load; 2 A with inductive load
250 Vac; 2 A with resistive load; 2 A with inductive load
Output voltage range: 0-10 V, max 10 mA
250 Vac; 2 A with resistive load; 2 A with inductive load
Tx/RxTx/Rx+ GND
250 Vac; 2 A with resistive load; 2 A with inductive load
Tab. 9.c
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Electrical connections 47
ENG
9.2 Steam production control signals
Depending on the type of signal used, steam production can be enabled and/or
managed in different ways (ON/OFF or modulating).
IMPORTANT the probe inputs are protected against short-circuits, and the
maximum current delivered (3U) is 50 mA. Despite this, it is recommended to
configure the “Control type” before connecting the probes to the terminals.
To help users configure the humidifier, a screen index is shown at the top
right of the display. The screen index corresponds to the sequence in each
menu in order to reach the specific page.
Regulation
Ea01
Regulation type: Mod. Hum. with limit
Fig. 9.f
Steam production can be started by:
HUMIDISTAT (ON/OFF operation): · connect terminals 1U and 2U (production
request) to a humidistat; · short-circuit terminals 7U and 8U (jumper) to
enable production; · to enable ON/OFF operation, set:
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Fig. 9.g
Index Ea01 Ea04
Parameter Control type Maximum production
Description External ON/OFF signal 25-100% of rated production
Tab. 9.d
HUMIDISTAT and REMOTE CONTACT (ON/OFF operation) · connect terminals 1U and 2U
(production request) to a humidistat; · connect inputs 7U and 8U (enable) to a
remote contact (e.g.: switch, timer,…); · to enable ON/OFF operation, set:
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Fig. 9.h
Index Ea01 Ea04
Parameter Control type Maximum production
Description External ON/OFF signal 25-100% of rated production
Tab. 9.e
Steam production can be enabled and controlled by:
EXTERNAL PROPORTIONAL CONTROLLER (modulating operation) · short-circuit
terminals 7U and 8U (jumper) to enable production; · connect terminals 1U and
2U (production request) to an external controller; · to enable control, set:
OUT REF
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Fig. 9.i
Index Ea01 Ea03
Ec01
Parameter
Description
Control type
proportional to external signal
Proportional band Set: Hysteresis (0-100%) –
Minimum production (25%-
00%) – Maximum production
(25%-100%)
Type of main
Select from: 0 – 1V, 0 – 10V, 2 – 10V,
probe
0 – 20mA, 4 – 20mA
Tab. 9.f
48 Electrical connections
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
EXTERNAL PROPORTIONAL CONTROLLER and REMOTE CONTACT (modulating operation) · connect terminals 1U and 2U (production request) to a humidistat; · connect inputs 7U and 8U (enable) to a remote contact (e.g.: switch, timer,…); · to enable control, set:
OUT
REF
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Fig. 9.j
Index Ea01 Ea03
Ec01
Parameter Control type
Description proportional to external signal
Proportional band Set: Hysteresis (0-100%) – Min-
imum production (25%-00%) –
Maximum production (25%-100%)
Type of main
Select from: 0 – 1V, 0 – 10V, 2 – 10V,
probe
0 – 20mA, 4 – 20mA
Tab. 9.g
EXTERNAL PROPORTIONAL CONTROLLER and REMOTE CONTACT (modulating operation)
with LIMIT PROBE · short-circuit terminals 7U and 8U (jumper) to enable
production; alternatively connect terminals 7U 8U to a remote contact
(e.g.: switch, timer,…); · connect terminals 1U and 2U (production request) to
an external controller; · connect the active limit probe to terminals 5U, 3U
(+12Vdc), 6U (GND); · to enable control, set:
Notice: when using 0-10 V probes, connect the probe power supply +(G) to terminal “G” on the board rather than terminal 3U.
OUT REF
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
OUT H/T M
+ (G)
Fig. 9.k
Index Ea01 Ea03
Ea06 Ec01 Ec02
Parameter Description
Control type Proportional to external signal with
limit probe
Proportional Set: Hysteresis (0-100%) – Minimum
band
production (25%-00%) – Maximum
production (25%-100%)
Limit probe Set: Humidity set point (0-100 %rH) –
Differential (20 %rh)
Type of main Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 –
probe
20mA, 4 – 20mA
Limit probe Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 –
type
20mA, 4 – 20mA
Tab. 9.h
Notice: in industrial environments (IEC EN61000-6-2) the signal cables leaving the humidifier must not exceed 30 m (98′) in length: steam production signal cable (terminals 1U, 2U), digital remote on/off input (terminals 7U, 8U) and shielded cable for RS485 communication.
9.3 Control with humidity probes
The main control board, connected to a room humidity probe, manages steam
production based on the humidity measured. A second outlet humidity limit
probe can also be connected: with this configuration, typical of air handling
units, the controller continues managing steam production according to the
humidity requirement, however production is limited according to the relative
humidity measured in the outlet duct.
HP
HLP
RC
Fig. 9.l gaSteam +0300122EN rel. 1.0 – 01.12.2021
Key: HP Room humidity control probe
(intake/room humidity probe) RC Remote contact HLP Limit humidity probe
(outlet humidity probe)
Electrical connections 49
ENG
CONTROL WITH ONE HUMIDITY PROBE · short-circuit terminals 7U and 8U (jumper)
to enable production; alternatively connect terminals 7U 8U to a remote
contact
(e.g.: switch, timer,…); · connect the main active room probe to terminals 1U,
2U (GND) and 3U (+12Vdc); · to enable control, set:
Notice: when using 0-10 V probes, connect the probe power supply +(G) to terminal “14” on the terminal block “T” inside the electrical panel, rather than terminal 3U.
Main probe
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
OUT H/T M
+ (G)
Fig. 9.m
Index Parameter Ea01 Control type Ea05 Modulating
control
Ec01 Type of main probe
Description one humidity probe Set: humidity set point (0-100 %rH)
differential (2-20 %rh) Minimum production (25%-100%) Maximum production
(25%-100%) Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 – 20mA, 4 – 20mA
Tab. 9.i
CONTROL WITH ONE HUMIDITY PROBE AND LIMIT PROBE · short-circuit terminals 7U
and 8U (jumper) to enable production; alternatively connect terminals 7U 8U
to a remote contact
(e.g.: switch, timer,…); · connect the main active room probe to terminals 1U,
2U (GND) and 3U (+12Vdc); · connect the active limit probe to terminals 5U, 3U
(+12Vdc), 6U (GND); · to enable control, set:
Index Ea01 Ea05
Ea06 Ec01 Ec02
Parameter Control type Modulating control
Limit probe Type of main probe Limit probe type
Description Humidity with limit probe Set: Humidity set point (0-100 %rH) Differential (2-20 %rh) Minimum production (25%-100%) – Maximum production (25%-100%) Humidity set point (0-100 %rH) – Differential (20 %rh) Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 – 20mA, 4 – 20mA Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 – 20mA, 4 – 20mA
Tab. 9.j
Notice: when using 0-10 V probes, connect the probe power supply +(G) to terminal “14” on the terminal block “T” inside the electrical panel, rather than terminal 3U.
Second probe Main probe
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
OUT H/T M
+ (G)
OUT H/T M
+ (G)
Fig. 9.n
The following probes can be connected:
probes for rooms
DPWC111000
for air ducts
DPDC110000,
DPDC210000
for industrial applications
DPPC210000
Tab. 9.k
Notice: third-party active probes can also be connected to the controller.
CONTROL WITH TWO HUMIDITY PROBES · short-circuit terminals 7U and 8U (jumper)
to enable production; alternatively connect terminals 7U 8U to a remote
contact
(e.g.: switch, timer,…); · connect the main active room probe to terminals 1U,
2U (GND) and 3U (+12Vdc); · connect the second active probe to terminals 5U,
3U (+12Vdc) and 6U (GND); · to enable control, set:
Index
Parameter
Description
Ea01
Control type
Modulation with two humidity probes
Ea02
Control with two probes Set the weight of the two probes (0-100%)
Ea05
Modulating control
Set: humidity set point (0-100 %rH) differential (2-20 %rh)
Minimum production (25%-100%) – Maximum production (25%-100%)
Ec01
Type of main probe
Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 – 20mA, 4 – 20mA
Ec02
Second probe type
Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 – 20mA, 4 – 20mA
Tab. 9.l
The controller will calculate the weighted average between the two probes. The weight of the two probes can also be set.
50 Electrical connections
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
Notice: when using 0-10 V probes, connect the probe power supply +(G) to terminal “14” on the terminal block “T” inside the electrical panel, rather than terminal 3U.
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Second probe Main probe
OUT H/T M
+ (G)
OUT H/T M
+ (G)
Fig. 9.o
The following probes can be connected:
probes for rooms
DPWC111000
for air ducts
DPDC110000,
DPDC210000
for industrial applications
DPPC210000
Tab. 9.m
Notice: third-party active probes can also be connected to the controller.
9.4 Control with temperature probes
The controller also allows autonomous temperature control, and can be
connected to a temperature probe TT. It performs complete control based on the
temperature measured inside the controlled environment.
TT CR
Fig. 9.p
Key:
TT Active temperature probe RC Remote contact
CONTROL WITH ONE ACTIVE TEMPERATURE PROBE · short-circuit terminals 7U and 8U
(jumper) to enable production; alternatively connect terminals 7U 8U to a
remote contact
(e.g.: switch, timer,…); · connect the main active room probe to terminals 1U,
2U (GND) and 3U (+12Vdc); · to enable control, set:
Index Ea01 Ea05
Ec01
Parameter Control type Modulating control
Type of main probe
Description One temperature probe Set: temperature set point (0-100°C) (32-212°F) differential (2-20°C) (3.6-36°F) Minimum production (25%-100%) – Maximum production (25%-100%) Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 – 20mA, 4 – 20mA
Tab. 9.n
Notice: when using 0-10 V probes, connect the probe power supply +(G) to terminal “14” on the terminal block “T” inside the electrical panel, rather than terminal 3U.
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Main probe
OUT H/T M
+ (G)
Fig. 9.q
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Electrical connections 51
ENG
CONTROL WITH ONE TEMPERATURE PROBE AND LIMIT PROBE · short-circuit terminals
7U and 8U (jumper) to enable production; alternatively connect terminals 7U
8U to a remote contact
(e.g.: switch, timer,…); · connect the main active room probe to terminals 1U,
2U (GND) and 3U (+12Vdc); · connect the active limit probe to terminals 5U, 3U
(+12Vdc), 6U (GND); · to enable control, set:
Index Ea01 Ea05
Ea06 Ec01 Ec02
Parameter Control type Modulating control
Limit probe Type of main probe Limit probe type
Description Temperature with limit Set: temperature set point (0-100 °C) (32-212°F) differential (2-20°C) (3.6-36°F) Minimum production (25%-100%) – Maximum production (25%-100%) Set point (0-100 °C/°F) – Differential (0-100%) Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 – 20mA, 4 – 20mA Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 – 20mA, 4 – 20mA
Tab. 9.o
Notice: when using 0-10 V probes, connect the probe power supply +(G) to terminal “14” on the terminal block “T” inside the electrical panel, rather than terminal 3U.
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Second probe Main probe
OUT H/T M
+ (G)
OUT H/T M
+ (G)
Fig. 9.r
The following probes can be connected:
probes for rooms for air ducts
for industrial applications
DPWC111000 DPDC110000, DPDC210000 DPPC210000
Tab. 9.p
Notice: third-party active probes can also be connected to the controller.
CONTROL WITH TWO ACTIVE TEMPERATURE PROBES · short-circuit terminals 7U and 8U
(jumper) to enable production; alternatively connect terminals 7U 8U to a
remote contact
(e.g.: switch, timer,…); · connect the main active room probe to terminals 1U,
2U (GND) and 3U (+12Vdc); · connect the active limit probe to terminals 5U, 3U
(+12Vdc) and 6U (GND); · to enable control, set:
Index Ea01
Parameter Control type
Description Temperature (two probes)
Ea02
Control with two probes
Set the weight of the two probes (0-100%)
Ea05
Modulating control
Set: temperature set point (0-100 °C) (32-212°F) differential (2-20°C) (3.6-36°F)
Minimum production (25%-100%) – Maximum production (25%-100%)
Ec01
Type of main probe
Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 – 20mA, 4 – 20mA
Ec02
Second probe type
Select from: 0 – 1V, 0 – 10V, 2 – 10V, 0 – 20mA, 4 – 20mA
Tab. 9.q
The controller will calculate the weighted average between the two probes. The weight of the two probes can also be set.
Notice: when using 0-10 V probes, connect the probe power supply +(G) to terminal “14” on the terminal block “T” inside the electrical panel, rather than terminal 3U.
Second probe Main probe
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
OUT H/T M
+ (G)
OUT H/T M
+ (G)
Fig. 9.s
The following probes can be connected:
probes for rooms for air ducts
for industrial applications
DPWC111000 DPDC110000, DPDC210000 DPPC210000
Tab. 9.r
Notice: third-party active probes can also be connected to the controller.
52 Electrical connections
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
CONTROL WITH ONE NTC TEMPERATURE PROBE (passive) · short-circuit terminals 7U
and 8U (jumper) to enable production; alternatively connect terminals 7U 8U
to a remote contact
(e.g.: switch, timer,…); · connect the main NTC room probe to terminals 1U and
2U; · to enable control, set:
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Fig. 9.t
Index Parameter Ea01 Control type Ea05 Modulating
control
Ec01 Type of main probe
Description one temperature probe Set: temperature set point (0-100 °C)
(32-212°F) differential (2-20°C) (3.6-36°F) Minimum production (25-100%)
Maximum production (25-100%) Set probe type: NTC
Tab. 9.s
CONTROL WITH TWO NTC TEMPERATURE PROBES (passive) · short-circuit terminals 7U
and 8U (jumper) to enable production; alternatively connect terminals 7U 8U
to a remote contact
(e.g.: switch, timer,…); · connect the first NTC probe to terminals 1U and 2U;
· connect the second NTC probe to terminals 5U and 6U; · to enable control,
set:
The controller will calculate the weighted average between the two probes. The
weight of the two probes can also be set.
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Fig. 9.u
Index Parameter Description Ea01 Control type Modulation with two temperature probes
Ea02 Control
Set the weight of the two probes (0-
2 probes 100%)
Ea05 Modulating Set:
control
temperature set point (0-100 °C) (32-
212°F) differential (2-20°C) (3.6-36°F)
Minimum production (25%-100%) – Maxi-
mum production (25%-100%)
Ec01 Type of main Set probe type: NTC
probe
Ec02 Second
Set probe type: NTC
probe type
Tab. 9.t
9.5 Alarm contact
The humidifier controller is fitted with a relay contact for remote signalling
of one or more faults or alarms. The connection to the alarm contact (250 Vac;
max capacity: 2 A resistive – 2 A inductive) is activated via terminals 7O, 😯
and 9O.
1O 2O 3O 4O 5O 6O 7O 😯 9O
O
CO NC NO
Fig. 9.v
L
N
Key:
7O CO – Common 😯 NC – Normally closed 9O NO – Normally open
Tab. 9.u
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Electrical connections 53
ENG
9.6 Production request analogue output
The humidifier controller is fitted with an analogue output (0-10 V signal)
that reflects the production request. The production request output (0-10 V
max 10 mA) is connected to terminals 11U, 12U.
1U 2U 3U 4U 5U 6U 7U 8U 9U 10U 11U 12U 13U 14U
U
Fig. 9.w
0-10 V
Key:
11U Production request analogue output 12U GND
Tab. 9.v
IMPORTANT: to avoid unbalanced control, the earth of the probes or external controllers must be connected to the humidifier controller’s earth.
9.7 Final checks
When installation is complete, verify that: 1. mains power to the humidifier
corresponds to the voltage shown on the rating plate; 2. the fuses installed
are suitable for the line and power voltage; 3. a mains disconnect switch has
been installed so as to be able to disconnect power to the humidifier; 4. the
humidifier has been correctly earthed; 5. the power cable is secured to the
tear-resistant cable gland; 6. terminals 7U, 8U are jumpered or connected to
an enabling contact; 7. if the humidifier is controlled by an external
controller, the signal earth is electrically connected to the controller
earth.
10. CHECKS BEFORE COMMISSIONING
10.1 Preliminary checks
Before starting the humidifier, check that: · the water and electrical
connections have been completed and the steam distribution system configured
according to the
instructions contained in this manual; · the humidifier water shut-off valve
is open; · the power fuses are installed and intact; · terminals 7U and 8U are
jumpered or connected to the remote ON/OFF contact, and that the latter is
closed; · the probes or the external control device are correctly connected
(and that the earth of these devices is electrically connected
to the earth of the main control board); · the steam hose is not choked; · in
the event of ducted humidification, operation of the humidifier is slaved to
the operation of the air fan (replacing or in series
with the remote ON/OFF contact); · the condensate return pipe from the blower
has been installed and is not obstructed; · the drain pipe is connected
correctly and unobstructed.
IMPORTANT before starting, check that the humidifier is in perfect condition,
that there are no water leaks and that the electrical parts are dry. Do not
connect power if the appliance is damaged or even partially wet!
54 Checks before commissioning
gaSteam +0300122EN rel. 1.0 – 01.12.2021
ENG
11. STARTUP AND USER INTERFACE
11.1 Commissioning
After having connected power using the main disconnect switch (ON), switch the
appliance on by moving the switch on the front panel (1 Fig. 11.a) to “ON”.
The activation sequence will start, which includes an initial phase, an
autotest phase and finally actual operation. Each step in the activation
sequence is identified by a different display.
Indoor models
Outdoor models
1
1
Fig. 11.a
11.2 Activation sequence
1. APPLICATION PROGRAM RUN THE FIRST TIME The humidifier logo (gaSteam) is
displayed. When starting the first time, the menu language needs to be
selected: English, Italiano, Deutsch, Français, Español. Select the desired
language and confirm. This screen is displayed for 60 seconds.
2. WIZARD When starting the first time, a wizard is provided to quickly set
the main humidifier parameters. The wizard comprises ten steps (some of which
may not be displayed, if not necessary): 1/10 model (only if the replacement
controller is not configured): select and set the parameters relating to the
model (size, voltage,…); 2/10 water hardness: auto or user-defined. If
selecting “auto”, the controller automatically sets the hardness of the water,
based on the conductivity reading; 3/10 manual water hardness setting. The
possible options are: · Demineralised, maintenance at 3000h (hours) · 0-10°f,
maintenance at 3000h (hours) · 10-20°f, maintenance at 1500h (hours) ·
20-30°f, maintenance at 1000h (hours) · 30-40°f, maintenance at 800h (hours);
4/10 control type: external On/Off signal, proportional to external signal
with limit probe, proportional to external signal, one humidity probe, one
temperature probe, one humidity probe and limit probe, one temperature and
limit probe, two temperature probes (average), two humidity probes (average);
5/10 select the main room probe type: 0-1V (active), 0-10V (active), 2-10V
(active), 0-20 mA (active), 4-20 (active), NTC (passive); 6/10 select the
limit probe type: 0-1V (active), 0-10V (active), 2-10V (active), 0-20 mA
(active), 4-20 (active), NTC (passive); 7/10 set the limits for active probes.
· Room min (%): set the minimum relative humidity limit rH% for the main
probe; · Room max (%): set the maximum relative humidity limit rH% for the
main probe; · Limit min (%): set the minimum relative humidity limit rH% for
the limit probe; · Limit max (%): set the maximum relative humidity limit rH%
for the limit probe; 8/10 set the drain to dilute cycles: auto or user-
defined. If selecting “auto”, the controller automatically sets the number of
evaporation cycles that must occur between two consecutive drain to dilute
cycles. The selection is made by reading the inlet water conductivity using
the conductivity meter, thus reducing water usage, reducing maintenance and
extending boiler life; 9/10 manual drain to dilute cycle setting. Enter the
number of evaporation cycles before forcing a dilution cycle. 10/10date and
time setting. At the end of the guided procedure, a message prompts whether to
show the wizard again when next starting? Yes/No
3. AUTOTEST PROCEDURE Indicated on the display by the humidifier status shown
as “AUTOTEST”. Whenever the humidifier is started (switch moved from OFF to
ON), an autotest procedure is run by default to check operation of the level
sensor and the appliance as a whole. The autotest procedure involves a water
fill cycle to above the high level (green LED), followed by a drain cycle
until below the minimum level (red LED). The procedure then refills the unit
with water in order to restart production (if required).
Notice: all the screens in the wizard (except for the language selection
screen) remain on the display until the user enters the settings.
4. OPERATION The humidifier starts operating and the standard display is
shown. If an alarm is active, the corresponding icon (bell) comes on red, see
the chapter “Alarms” for the complete list and description.
Notice: model selection and configuration (only for non-configured replacement
controllers). If needing to replace the controller only (controller
replacement part number UGKA0D0040), the first time the controller is powered
on, the model will need to be set (capacity, power supply and version).
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Start-up and user interface 55
ENG
11.3 Different types of gas supply
IMPORTANT: the appliances are delivered calibrated and tested to operate on
natural gas (methane). The humidifier can be supplied by the following types
of gas: · Natural gas (G20-G25 methane – factory setting). · Propane-Butane
(LPG G30-G31).
IMPORTANT: models UG150, UG300, UG450 are not certified to operate on propane
– butane (G30- G31).
A number of parameters on the electronic controller need to be set for correct
operation, calibrating combustion by checking the values of CO2 (% vol) and CO
(ppm) in the flue gas:
NATURAL GAS/LPG CALIBRATION
no. of turns
UG45
UG90
Gas
min
max
min
max
G20-G25 1450 4700 1700 5050
G30-G31 1650 4200 1850 4450
UG150
min
max
1900 6750
–
–
UG180
min
max
2000 5300
2000 5150
UG300
min
max
1900 6750
–
–
UG450
min 1900 –
max 6750 –
Tab. 11.a
11.3.1 Gas burner calibration
The burner is pre-calibrated in the testing phase by the manufacturer;
nonetheless, combustion should be checked and adjusted if necessary.
11.3.2 Preparing to analyse combustion
If the flue gas exhaust pipe is positioned horizontally or vertically: 5.
remove the cap from the inspection section of the humidifier flue gas exhaust
pipe; 6. insert the flue gas analyser probe; 7. perform the flue gas analysis.
Once analysis has been completed, reposition the cap on the inspection
section.
Fig. 11.b
11.3.3 Type of calibration
Two different types of burner calibration are available: A. Guided; B. Manual.
The guided procedure automatically provides the user, step by step, with all
the information necessary to complete the calibration process. For the manual
procedure, follow the instructions below.
56 Checks before commissioning
gaSteam +0300122EN rel. 1.0 – 01.12.2021
11.3.4 Burner calibration at maximum output
Force the burner to operate at maximum output by setting the fan to the
maximum speed and analysing the flue gas.
UG45/90/180
UG150/300/450
BA
ENG
A
B
Fig. 11.c
Procedure: After opening the front door and identifying the fan-valve
assembly:
Fig. 11.d
using a T25 Torx screwdriver: · adjust the screw (B – Fig. 11.c) and check
that the CO and CO2 values corre-
spond to those in the emissions table; · to increase the CO2 value, turn the
hex key anticlockwise; to decrease it, turn
the key clockwise.
using a 4 mm hex key: · adjust the screw (B – Fig. 11.d) and check that the CO
and
CO2 values correspond to those in the emissions table; · to increase the CO2
value, turn the screw clockwise; to
decrease it, turn it anticlockwise .
UG45/90/180
UG150/300/450
Fig. 11.e
EMISSIONS TABLE Gas G20-G25 G30-G31
CO2 (%)
min 8.3 ±0.3 9.9 ±0.3
Fig. 11.f
max 9.3 ±0.3 10.5 ±0.3
CO (ppm) < 80
Tab. 11.b
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Checks before commissioning 57
ENG
11.3.5 Burner calibration at minimum output
Force the burner to operate at minimum output, by setting the fan to the
minimum speed.
Procedure for both models: Using a T40 Torx screwdriver: · remove the cap to
access the adjustment screw;
UG45/90/180
UG150/300/450
Fig. 11.g
Fig. 11.h
· adjust the screw (A – Fig. 11.c) and check that the CO and CO2 values correspond to those in the emissions table;
UG45/90/180
UG150/300/450
Fig. 11.i
Fig. 11.j
· to increase the CO2 value, turn the screw clockwise; to decrease it, turn it anticlockwise . · replace the cap on the regulator.
Notice: make small variations, as the adjustment screw is very sensitive.
IMPORTANT: once the calibration at MINIMUM output has been performed, check
the MAXIMUM calibration again, as it may have been affected by the MINIMUM
calibration; if necessary, repeat the operations described in Burner
calibration at MAXIMUM output. Then reset the burner to automatic operation.
PROPANE/BUTANE/LPG CALIBRATION The only units that can also run on propane,
butane and LPG are: UG45, UG90 and UG180 (UG150, UG300 and UG450 only run on
natural gas). Do not ignite the burner (factory calibrated for natural gas!)
with propane or LPG until turning the screw (B – Fig. 11.c, 11.d)
approximately 2.5-3 turns clockwise to adjust maximum gas flow. In fact, the
heat power of propane is about three times that of natural gas (methane),
therefore it is essential to first reduce the maximum gas flow before
ignition. After having reduced the gas flow rate, ignite the burner and
subsequently calibrate the gas flow rate by analysing the flue gas, as
reported in the previous paragraphs.
58 Checks before commissioning
gaSteam +0300122EN rel. 1.0 – 01.12.2021
11.4 Shutdown
To avoid stagnation, drain the water from the boiler using the manual
procedure. Then move the switch to 0, “OFF”.
ENG
11.5 Graphic terminal
The 4.3″ touch graphic terminal has a graphic interface with coloured and
animated icons. The contents of the display can be scrolled up and down simply
and intuitively.
11.6 Touch display
“HOME” menu The “HOME” menu comprises information on the probes, the set point
and external request signal.
12
3 4 56
300090_104_R01
Key:
Pos. Function
1
System menu
10 2
Home
3
Scheduler settings
4
System date and time
5
Notification centre
6
Alarm list
7
ON/OFF
8
Set point setting
7
8
9
9
System information
10
Descriptive icon of humidifier status
Fig. 11.k
Tab. 11.c
11.6.1 System menu
The System menu provides access to settings that are available without
entering a password.
300090_105_R02
1
5
2
6
3
7
4
8
Fig. 11.l
Pos. Menu
1
Clock
2
Input/Output
3
Alarm thresholds
4
Language
5
Scheduler
6
Functions
7
Graphs
8
Settings
Description Date and time setting Display the analogue and digital inputs/outputs Set the alarm thresholds Set the menu language Manage scheduling of working time bands Special and manual functions Display historical and real-time operation of the humidifier Access advanced humidifier configuration (Installer password 77). Menu: E. Settings. Change unit of measure (Imperial/International)
Tab. 11.d
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Checks before commissioning 59
ENG
11.6.2 Scheduler settings
The Scheduler menu is used to activate and set the time bands for switching on
the humidifier. After enabling the scheduler (1 – Fig. 11.m), six on/off time
bands can be set for each day. Use the copy button to copy the set time bands
from one day to the next. For the specific functions of the scheduler see par.
12.1.4.
1
300090_106_R02 300090_107_R01
Fig. 11.m
Fig. 11.n
11.6.3 Notification centre
The main messages regarding the activities performed by the humidifier can be
quickly displayed in the notification centre. The main screen shows whether
any notifications are present, by indicating the number of active
notifications. The list of messages that can be viewed in the notification
centre is shown below:
Message
Description
Type of notification
Maintenance required in xxx hours.
The unit will require routine maintenance
System
Boiler lifetime hours: yyy hours
The unit has performed x drain cycles due to
The unit has performed a drain cycle due to foam detec- System
the presence of foam
tion
The maximum production of the Main/Secondary system The maximum production of the Main/Secondary system System
is lower than the value set.
is lower than the value set.
Set: xxxx Current: yyyy
The unit has restarted automatically after a
The unit has restarted automatically after a shutdown. Was User
shutdown Was there a blackout?
there a blackout?
Periodical drain cycle performed
The periodical drain was performed correctly
User
Factory reset
The factory parameters have been reset correctly
User
Tab. 11.e
The system notifications cannot be reset by the user and will be automatically cancelled, user notifications however can be deleted.
11.6.4 ON/OFF
The ON/OFF tab is used to switch the humidifier on (Fig. 11.p) and off (Fig.
11.o).
Fig. 11.o
Fig. 11.p
60 Checks before commissioning
gaSteam +0300122EN rel. 1.0 – 01.12.2021
300090_112_R02
ENG
11.6.5 Set point setting
The Setpoint tab is used to set the set point (1 – Fig. 11.q), the
proportional band (2 – Fig. 11.q) and the maximum production (3 – Fig. 11.q).
1 2 3
Fig. 11.q
11.6.6 System information
The System information tab shows information on the status and activity of the
humidifier, as well as on the software and hardware.
1
300090_111_R02
Fig. 11.r
The unit status is shown on the display, as indicated in the figure (1 – Fig. 11.r):
Unit status Standby Production Alarm Off from BMS Off from scheduler Off from DIN Off from keypad Off from monitoring Ready for backup Manual mode Warning Preheating Preheat at start Autotest Drain due to inactivity
Description unit in standby and ready to operate the unit is producing steam there is at least one active alarm. Display the alarm by pressing the button steam production disabled by the supervisor steam production disabled due to set time band production of steam stopped due to opening of the “remote ON/OFF” contact; the unit has been switched off from the keypad steam production disabled by the monitoring service the unit is ready and awaiting to start operation if there is a fault on the main unit. test mode for commissioning and to check functions (for example: activate drain pump, activate fill valve…) warning notification the unit is preheating the water in the boiler at start-up, the unit heats the water to reach the production request the unit is running the autotest water drain due to inactivity or periodically, the drain pump is operating
Tab. 11.f
11.6.7 Descriptive icon of humidifier status
Graphic display of unit status via animated icons. The status may be: · Fill
(fill valve active); · Drain (drain pump active); · Steam production; ·
Minimum water level in the boiler (yellow and red LEDs on); · Water level
above the maximum in the boiler (green LED on);
gaSteam +0300122EN rel. 1.0 – 01.12.2021
Checks before commissioning 61
ENG
11.7 Complete programming tree
Below is the complete tree of the settings menu. The screen index at the top
right (Fig. 11.s) corresponds to the sequence in each menu in order to reach
the specific page. There are two levels of access: Installer and Service.
To login to the settings menu, use the following passwords: · service 0044; · installer: 0077.
Regulation
Ea01
Regulation type:
Mod. Hum. with limit
Menu A. Clock
Index A01
Description Set the time, date and time zone
Fig. 11.s
Level Installer – Service
Menu B. Time bands (scheduler)
Index B01 B02
B03 B04
Description Enable time bands (visible if time bands are enabled)
Set the time bands: day, on time, off time
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>