TROX JZ Multileaf Dampers Instruction Manual
- June 11, 2024
- TROX
Table of Contents
- TROX JZ Multileaf Dampers
- Product Overview
- Limitation of Liability
- Qualified Staff
- Copyright
- Personal Protective Equipment
- Installation Manual
- Product Usage Instructions
- Transport and packaging
- Installation
- Electrical/pneumatic connection
- Commissioning and maintenance
- Technical data
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
TROX JZ Multileaf Dampers
Product Overview
The product is a multileaf damper that comes in two types: JZ- and WG-JZ-. It is manufactured by TROX GmbH and is located in Neukirchen-Vluyn, Germany. The damper has an enclosure, opposed blades (parallel blades for JZ-P), blade tip seal (JZ-HL, JZ-LL- only), travel stop (angle section with seal) (JZ- HL, JZ-LL-*, only), actuator (optional), transverse link, external linkage, crimped wire mesh, with or without insect screen, WG border, WG bottom blade, and WG regular blades.
Important Notes
It is essential to read and fully understand the installation manual before
starting any work. Compliance with the safety notes and all instructions in
the manual is necessary for safe working. The local regulations for health and
safety at work and general safety regulations also apply.
Limitation of Liability
The manufacturer does not accept any liability for damages resulting from non- compliance with the manual, incorrect use, operation or handling by untrained individuals, or unauthorized modifications. The actual scope of delivery may differ from the information in this manual for special constructions, additional order options, or as a result of recent technical changes.
Qualified Staff
The work described in this manual has to be carried out by individuals with the qualification, training, knowledge, and experience described below:
- HVAC technicians who have sufficient professional or technical training, knowledge, and actual experience to enable them to work on HVAC systems, understand any potential hazards related to the work under consideration, and recognize and avoid any risks involved.
- Skilled qualified electricians who have sufficient professional or technical training, knowledge, and actual experience to enable them to work on electrical systems, understand any potential hazards related to the work under consideration, and recognize and avoid any risks involved.
Copyright
This document, including all illustrations, photos, etc., is protected by copyright. Any use of this document without the written consent of the manufacturer is an infringement of copyright; this applies in particular to disclosing this document to third parties, to publishing, copying, microcopying, or translating content, and to saving content on electronic systems or modifying it. Violators will be held liable for any damage. The right to further claims remains reserved.
Personal Protective Equipment
Personal protective equipment must be worn for any work in order to reduce health or safety hazards to the minimum.
Installation Manual
The installation manual enables operating or service personnel
to correctly install the product described above and to use it safely and
efficiently. The basic prerequisite for safe working is to comply with the
safety notes and all instructions in this manual.
Fig. 1: Schematic illustration of JZ-HL and WG-JZ
Product Usage Instructions
Follow the installation manual to correctly install the product and use it safely and efficiently. Make sure to comply with all safety notes and instructions in the manual. Wear personal protective equipment for any work in order to reduce health or safety hazards to the minimum.
TROX GmbH
Heinrich-Trox-Platz
47504 Neukirchen-Vluyn, Germany
Germany
Phone: +49 (0) 2845 2020
Fax: +49 (0) 2845 202265
E-mail : trox@trox.de
http://www.troxtechnik.com
Product overview
- Enclosure
- Opposed blades (JZ-P*: parallel blades)
- Blade tip seal (JZ-HL, JZ-LL- only)
- Travel stop (angle section with seal) (JZ-HL, JZ-LL-, only)
- Actuator (optional)
- Transverse link
- External linkage
- Crimped wire mesh, with or without insect screen
- WG border
- WG bottom blade
- WG regular blades
Important notes
Information on the installation manual
This manual enables operating or service personnel to correctly install the
product described below and to use it safely and efficiently. It is essential
that these individuals read and fully understand this manual before starting
any work. The basic prerequisite for safe working is to comply with the safety
notes and all instructions in this manual. The local regulations for health
and safety at work and general safety regulations also apply.
Qualified staff
The work described in this manual has to be carried out by individuals with
the qualification, training, knowledge and experience described below:
HVAC technician
HVAC technicians are individuals who have sufficient professional or technical
training in the fieldthey are working in to enable them to carry out
theirassigned duties at the level of responsibility allocatedto them and in
compliance with the relevant guidelines, safety regulations and instructions.
HVAC technicians are individuals who have in-depth knowledge and skills
related to HVAC systems; they are also responsible for the professional
completion of the work under consideration. HVAC technicians are individuals
who have sufficient professional or technical training, knowledge and actual
experience to enable them to work onHVAC systems, understand any potential
hazards related to the work under consideration, and recognise and avoid any
risks involved.
Skilled qualified electrician
Skilled qualified electricians are individuals who have sufficient
professional or technical training, knowledge and actual experience to enable
them to work on electrical systems, understand any potential hazards related
to the work under consideration, and recognise and avoid any risks involved.
Limitation of liability
The information in this manual has been compiled with reference to the
applicable standards and guidelines, the state of the art, and our expertise
and experience of many years.
The manufacturer does not accept any liability for damages resulting
from:
- Non-compliance with this manual
- Incorrect use
- Operation or handling by untrained individuals
- Unauthorised modifications
The actual scope of delivery may differ from the information in this manual for special constructions, additional order options or as a result of recent technical changes.
Copyright
This document, including all illustrations, photos, etc., is protected by
copyright.
Any use of this document without the written consent of the manufacturer is an
infringement of copyright; this applies in particular to disclosing this
document to third parties, to publishing, copying, microcopying, or
translating content, and to saving content on electronic systems or modifying
it. Violators will be held liable for any damage. The right to further claims
remains reserved.
Personal protective equipment
Personal protective equipment must be worn for any work in order to reduce
health or safety hazards to the minimum. The appropriate protective equipment
for a job must be worn for as long as the job takes.
Correct use
The multileaf damper is used as a control element in the volume flow and
pressure control in air conditioning systems, e.g. in ventilation plant rooms
orducts.
Transport and packaging
Incorrect use
WARNING!
Danger due to incorrect use!
Incorrect use of the unit can lead to dangerous situations.
Never use the unit:
- in areas with potentially explosive atmospheres
- for process air control or shut-off
- outdoors without sufficient protection against the effects of weather
- in humid rooms
- in rooms with aggressive or dust-laden air
Transport and packaging
Transport
CAUTION!
Danger of injury from sharp edges, sharp corners and thin sheet metal parts!
Sharp edges, sharp corners and thin sheet metal parts may cause cuts or
grazes.
- Be careful when carrying out any work.
- Wear protective gloves, safety shoes and a hard hat.
Use only lifting and transport gear designed for the required load. Always
secure the load against tipping and falling.
Upon delivery, carefully remove the packaging and check the unit for transport
damage and completeness.
Storage
Please note:
- Store the unit only in its original packaging
- Protect the unit from the effects of weather
- Protect the unit from humidity, dust and contamination
- Storage temperature: -10 °C to 50 °C.
- Relative humidity: 95 % max., no condensation
Installation
General safety notes
CAUTION!
Danger of injury from sharp edges, sharp corners and thin sheet metal parts!
Sharp edges, sharp corners and thin sheet metal parts may cause cuts or
grazes.
- Be careful when carrying out any work.
- Wear protective gloves, safety shoes and a hard hat
NOTICE!
Contamination or damage will impair the function of the multileaf damper.
Protect the multileaf damper from contamination and damage.
Personnel:
- HVAC technician
General installation information
- Ducts on both sides
- Without duct (air transfer)
- Duct on one side (air outlet)
- Duct on one side (air inlet)
The multileaf damper is installed away from walls (in ducts), or adjacent to or on the face of walls and ceiling slabs.
Please note:
- Installation should be vertical and without torsion
- Installation in vertical or horizontal ducting
- Installation only with the blades horizontal; JZAL, JZ-HL-AL and JZ-LL-AL also with the blades vertical
- Any airflow direction
- Duct connection on one side or on both sides
- The function of the damper must be checked before installation.
CAUTION!
Danger of injury!
Danger of injury when reaching into the blades or the linkage of the multileaf
damper.
Once the multileaf damper has been installed, people must be prevented from
reaching into the damper, for example by a cover grille.
NOTICE!
Temperatures below the dew poi nt
Temperatures below the dew point should be avoided as they lead to
condensation which may cause damage to the building structure.
Duct installation
Use screws (by others) to fix the multileaf damper to the duct. Due to its weight the multileaf damper must be supported, e.g. by a suspension system.
Wall/ceiling installation
Screw fix installationUse suitable screws (by others) to attach the
multileaf damper to the wall or ceiling slab.
Installation with installation subframe
- Threaded stud
- Fixing tab
- Installation subframe
Items 1 to 3 are included in the installation subframe supply package
H1 See Fig. 20 B1 See Fig. 21
Assembling the installation subframe and damper
- Threaded stud
- Washer
- Hexagonal nut
- Fixing tab
- Hexagon head screw
- Installation subframe
- Casing of the multileaf damper
Installation with external weather louvre
-
with installation subframe
** without installation subframe- Fixing tab
- Hexagon head screw with washer
- Installation subframe
The gap between the frame of the external weather louvre and the building envelope has to be professionally sealed (by others) to prevent the ingress ofhumidity or rain.
Electrical/pneumatic connection
Connecting the duct
Use screws to attach the damper to the ducting. The damper casing has flange
holes for duct connection. Seal the joint between the casing flange and the
duct in order to avoid pressure loss. Use sealing tape, for example, and
clamps or additional screws, if necessary.
The movement of the damper blades must not be obstructed by any attachment.
CAUTION!
Danger of injury when reaching into the multileaf damper.
If only one end is to be ducted on site, the other end must have a cover
grille (galvanised steel, mesh aperture ≤ 20 mm) or an external weather
louvre.
Electrical/pneumatic connection
Actuators provided by others
If actuators are provided by others, please note:
- Minimum torque of the actuator
- Maximum differential pressure for the multileaf damper
- Remove the lever (if any) that locks the quadrant stay during transport before you install the actuator
- Install the actuator according to the manufacturer’s instructions
For technical data refer to the technical leaflet.
NOTICE!
The blade mechanism must not be used as a travel stop for the actuator; if
necessary, use a separate travel stop device.
TROX cannot guarantee leak-free dampers if the actuators are provided and
installed by others.
Connecting electric actuators
Personnel:
- Skilled qualified electrician
Use only cables that are designed for the supply voltage for which they will
be used. The power rating is given on the actuator rating plate. Thelength and
cross section as well as any contact resistance may increase voltage losses.
A skilled qualified electrician has to select the correct cable types and
sizes.
DANGER!
Danger of electric shock! Do not touch any live components! Electrical
equipment carries a dangerous electrical voltage.
- Only skilled qualified electricians are allowed to work on the electrical system.
- Switch off the power supply before working on any electrical equipment.
Connect the actuator as indicated on the actuator or in the manufacturer’s product documentation.
Electric open/close actuators
-
Actuator
-
Spring return actuator (safe damper blade position as an option)
S1 closed: Direction of rotation 1
open: Direction of rotation 2 -
2-wire control (3-point)
- S1 open and S2 open: Actuator has stopped (any position)
- S1 closed: Direction of rotation 1
- S1 open, S2 closed: Direction of rotation 2
-
2-wire control (open/close)
- S3 not actuated: Direction of rotation 1
- S3 actuated: Direction of rotation 2
Limit switch
- S1 Common contact
- S2 Mechanical stop 1 < x
- S3 Mechanical stop 1 > x
- S4 Common contact
- S5 Mechanical stop 2 < x
- S6 Mechanical stop 2 > x
Modulating actuators
- Setpoint adjuster: U = voltage signal 0-10 V DC or 2-10 V DC
- Modulating actuator
Connecting pneumatic actuators
Personnel:
- Skilled qualified electrician
Required
- Control medium: dust, oil-free and dry air as well as inert gases
- Supply voltage, depending on the solenoid valve, see rating plate.
- Operating pressure, depending on the actuator, see rating plate.
DANGER!
Danger of electric shock! Do not touch any live components! Electrical
equipment carries a dangerous electrical voltage.
- Only skilled qualified electricians are allowed to work on the electrical system.
- Switch off the power supply before working on any electrical equipment.
-
Connect the solenoid valve as indicated on the valve or the manufacturer’s product documentation.
-
Connect the tubes according to the tubing diagram.
-
Throttle valve
-
Flow reducer (noise reduction)
-
Double acting or single acting actuator
Commissioning and maintenance
- Double acting pneumatic actuator
- Single acting pneumatic actuator
- Throttle valve
- Flow reducer (noise reduction)
Limit switch
- 1 Common contact
- 2 NC contact
- 4 NO contact
Commissioning and maintenance
Commissioning
Personnel:
- HVAC technician
As part of commissioning, the multileaf damper must be tested for correct functioning.
NOTICE!
JZ-LL-AL / JZ-HL-AL with quadrant stay
JZ-LL-AL / JZ-HL-AL multileaf dampers have a quadrant stay which functions as
a travel stop (open/close). Using the damper without the quadrant stay may
cause damage to the blades.
Do not use multileaf dampers JZ-LL-AL / JZ-HLAL without the quadrant stay.
Before commissioning, loosen the nut of the lever that locks the quadrant stay
during transport.
Maintenance
The multileaf damper and the actuator are maintenance- free with regard to
wear but multileaf dampers must still be included in the regular cleaning of
the ventilation system.
Technical data
Multileaf dampers are manufactured according to the width (B) × height (H)
ordered.
Multileaf dampers must be installed according to B × H; turning them is not
usually possible, Ä ‘General installation information’.
**Dimensions of JZ-***
- T 180 mm for steel/stainless steel construction, 120 mm for aluminium construction
H1 = 2 H + 76 mm
**Dimensions of WG-JZ-***
| JZ-S| JZ-P| JZ-S- A2| JZ-P- A2| JZ-AL| JZ-LL|
JZ-HL| JZ-LL- A2| JZ-LL- AL| JZ-HL- AL
---|---|---|---|---|---|---|---|---|---|---
Steel, galv.| ●| ●| | | | ●| ●| | |
Stainless steel| | | ●| ●| | | | ●| |
Aluminium| | | | | ●| | | | ●| ●
Parallel| | ●| | ●| | | | | |
Opposed| ●| | ●| | ●| ●| ●| ●| ●| ●
Closed blade air leakage to EN 1751 (class)1| | 3 – 4| 1 – 2| 3 – 4| 4| 2
Casing air leakage to EN 1751 (class)| C
Maximal airflow velocity in free cross-sectional area| 8 m/s
Operating temperature| -20…100 °C2
-20…150 °C3
| 0…
60 °C
| 0…100 °C| 0…60 °C
1) Not for actuators provided by others, Ä 7
__
- With plastic bearings
__
- With brass bearings
For more technical data see the technical leaflet.