DAYLIFF DSTEAM90 Steam Generator Installation Guide
- June 5, 2024
- DAYLIFF
Table of Contents
Steam Generator
Installation & Operating Manual
Congratulations on selecting Dayliff Steam Generator. They are manufactured to the highest standards and if installed and operated correctly will give many years of effcient and trouble-free service. A careful reading of this Installation Manual is therefore important, though should there be any queries they should be referred to the equipment supplier.
SPECIFICATIONS
DAYLIFF steam generators are high specification units with a number of design features that provide exceptional performance. They are fitted with multiples of 3kW elements depending on size for improved reliability ensuring steam freshness and selectable manual/auto drain. A remote control panel is included that gives a digital display of temperature and timer settings with indicator lights showing various operating conditions. Remote switches are included in the controller for cabin lighting and ventilation. One controller may be used to control one or up to 3 units. A demand switch is included that is installed inside the steam room for extending steam release for 30min. Units are supplied complete with all installation accessories including a steam head and auto drain valve. Provision for auto-descaling is provided.
OPERATING CONDITIONS
Water Pressure: Min 0.25Bar, Max 8Bar
Water Quality: Hardness less than 50ppm CaCo above which regular de-
scaling is necessary. If hardness exceeds 100ppm a water softener and a
cartridge prefilter is required to ensure efficient operation of the water
inlet
Model
| Size (kW)| Heating Elements (kW)| Phase/ Current (A)| Room
Volume (m 3 )| Dimensions(mm)| Weight (Kg)
---|---|---|---|---|---|---
L| W| H
DSTEAM90| 9| 3×3| 1-39/3-13| 6-10|
530
| 210| 370| 14
DSTEAM120| 12| 4×3| 3-17| 8-12
DSTEAM150| 15| 5×3| 3-22| 12-17| 240| 460| 18
SYMBOLS AND WARNINGS
| This appliance must be connected to an all-pole isolator.
---|---
| Disconnect the power supply before making any electrical connections.
| Ensure correct voltage for single and three-phase steam generators.
| This equipment must be installed by a qualified technician.
| The steam inlet nozzle should be set at approximately 300mm from the floor
and at least 200mm from wall.
| The steam generator should be installed in an accessible place where both
the electrical power and water supply can be isolated in an emergency.
| The minimum water inlet pressure is 0.25 bar and a maximum of 8 bar, working
pressure should not exceed 5 bar.
| The steam pipe length from the steam generator to the steam room should be
kept to a minimum, and pipes longer than 5 meters should be insulated to
prevent heat loss. Steam pipes are hot during use and must be protected
against accidental contact.
| Bends and elbows should be kept at a minimum. The pipeline should be kept
simple and straight to prevent condensate from gathering and causing a
blockage.
| There must be no valve or other blockage in the steam pipe.
| The steam pipes should be metallic or of any other material which can
withstand 150°C temperature, copper pipe is recommended.
| Steam generator should be installed on level ground.
| The Steam generator should not be in close proximity to hazardous
substances.
| The size of the heater required to heat a particular size of steam room is
dependent on the type of material used for construction, the height of the
steam room, and the ambient temperature.
DESIGN DETAILS
Frame and functions of the Steam Generator
No.| Part|
Description
---|---|---
1| Water Inlet Valve| Automatically controls the water flow (maximum
pressure 2bar)
2| Drain Valve| Controlled by controller turn on or turn off to drain
water
3| Power Entry| The entry route of the power wire
4| Control Cable Entry| The entry route of the control cable
5| Stainless Steel Tank| Boiler
6| Insulation Material| Reduce the loss of the boiler heat
7| Water Level Probe| Detect the water level
8| Steam Outlet| Steam Outlet
9| Pressure Relief Valve| Operates if the pressure in the boiler exceeds
10.2bar
10| Overheat Switch| To protect boiler when temperature exceeds1100C
11| Main Circuit Board| Control Centre
12| Accesorial Circuit Board| Connect and control the heating element
13| Terminal| Connection for power supply
No.| Part| Description
14| Earth Wire Plug| Connection for earth wire
15| Descaling Liquid Inlet| Descaling liquid inlet (1/2 inch)
16| Heat Element| Electrical Element
OC-B Controller Display
No.| Part|
Description
---|---|---
1| | Switch ON & OFF
2| | Push to operate lights
3| | Dual function button push to select steam on demand mode or to
drain the generator manually when not steaming
4| | Dual function button is used when steaming to set the
time/temperature
5| | Increase button
6|
| Decrease button
No.| Part|
Description
---|---|---
7| | Dual function button switches the fan on and off also used to
confirm
8| Time Display Window| Display the resting and operating time of the
steam generator
9| Temp Display Window| Display the detected temperature of the steam
room
10| Light LED| Indicator LED for the lamp of the steam room
11
| ****
Water LED
| Indicator LED for water level. Red means water is filling, and green means
the ideal water level is reached. If the LED is always in red (exceed 5
minutes). Check the water supply and if the water level valve is blocked.
Otherwise, the water level inlet valve may be damaged.
12| Drain LED| Indicator LED for draining – shows red for manual
draining and green for automatic draining at the end of the cycle.
13| Mode LED| Operation mode indicator red is for steam on demand mode
and green for conventional timing.
14| Heating LED| Green indicates heating is on, and red indicates the
required temperature
15| Overheat LED| Indicator LED for overheat, red means the steam
generator has been cut off due to heat element being too hot
16| Fan LED| Indicator LED for the fan in operation
17| Clean LED| Indicator LED shows descaling in operation.
NOTE In order for the generator to operate in steam on-demand mode, the steam on-demand button must be connected.
OC-S Steam on Demand Switch
When the switch is operated the LED indicator inside the switch turns red and
steam is generated for 30 minutes. At the end of 30 minutes or if the switch
is operated again, the
light will go off and the steam will stop. (Notice: Long Press the
“Drain/Model” button for 5 seconds and the time display will show ”Long”, then
enter “OC-S” mode).
Commercial Mode Instruction (OC-B+OC-S )
If OC-B is under the domestic model, only the OC-B controls the steam
generator.OC-S will not work. When OC-B is used on a commercial model, the
steam generator will be under waiting status (the time window shows “Long” and
on the circuit board, the LED will be flashing), press OC-S to operate steam
generator, and every press will make the steam generator keep working for
intervals of 30 minutes, the temperature control will depend on the OC-B
controller’s setting.
INSTALLATION
4.1 Steam Room Design
As a guide; For lightweight materials such as plastics and laminates, 1 kW
will heat up to 1m of air. Dense materials such as stones and ceramics which
conduct heat more than 3 rapidly allow for up to 2kW per m of air. Hot air
rises so restricting the height to around 2 meters will ensure the user is
sitting in the steam. For higher ceilings, ensure to increase the power
requirement. 3 If greater power is required one OC-B controller may be used to
control two or more steam generators, e.g. if a 30kW steam generator is
needed, one OC-B controller can control two 15kW steam generators or three 10
kW steam generators.
The OC-B controller has a working window of 10-240 minutes and 30-60º C. When
the time is not set, the generator operates continuously until switched off.
An OC-S demand switch may be included in the controller to set working times
at regular intervals of 30 minutes.
4.2 Equipment Installation
The steam generator should be installed in a dry well ventilated place in
close proximity to the steam room. It can be placed on the floor or hung from
a wall.
- To hang the generator on a wall drill 3 holes 8mm in diameter as below image and use the wall plugs and screws provided.
- Fix the top 2 screws in place first then hang the generator by the 2 keyholes shaped holes in the back plate.
- Then with the front cover removed fix the third screw to secure the unit in place.
4.3 Water & Steam Connection
-
The water supply pipe and steam pipe should comply with local standards.
-
Connect the water inlet valve of the generator to the 15mm mains water supply using a flexible hose with 1/2 inch fittings.
-
Steam outlet (1/2 inch or 3/4 inch) should use the same dimension copper pipe for ease of connection
NOTE According to the location, it may be necessary to attach an additional length of pipe to the pressure relief valve in order to divert the stream flow to a safe direction should the valve operate.
The site nozzle should be 300 mm away from the ground. For user comfort, it should be at the farthest place from the seat.
-
Connect the drain outlet to a suitable drain via a copper pipe with the appropriate fittings.
-
Make a secure connection between the steam nozzle & steam pipe.
-
Use a non-corrosive hose with ½-inch unions to connect between the descaling liquid container and the inlet valve; note the descaling liquid container must be mounted at least 500 mm above the steam generator.
4.4 Installation of Controller and Temperature Probe
Steam generator controller is waterproof and can be installed inside or
outside the steam room according to customer preference.
- The control panel should be installed at a height of approximately 1200mm for ease of use.
- To Install: drill a Φ40mm hole in the wall. Open the front cover of the steam generator. Fix the control cable (6 cores) and temperature sensor cable (2 cores) to the relevant ports. Put the protruding back of the controller in the hole at the bottom of the controller press close to the wall and place back the cover. Control panel installation: Screw one end to circuit board ports in the steam generator and connect the other to the controller’s cable.
Temperature probe installation: The temperature probe is installed inside the steam room at approximately 1.2 to 1.5 meters high and away from the door respective. Use a Φ4mm screw to fix it in place and connect to the wire from the controller.
Installation for Power Supply and Control Cable
- Confirm the correct voltage of the power supply and the wires.
- Remove the knockout for the power cable entry and use a rubber grommet to protect the cable, and connect the conductors to the correct terminals. For single-phase, power uses the copper bridge connectors.
- Ensure the power supply wire and control cable remains separated to prevent magnetic field of power supply wire from interfering with control cable signal.
Steam on Demand Function
Commercial operators may wish to take advantage of the steam-on-demand
function which allows bathers to press the steam-on-demand button located
inside the steam room
after which the generator will operate for 30 minutes and then stop until
activated again. To operate the steam on demand function install the
controller inside the plant room
alongside the generator then fit the push button supplied in a convenient
location inside the steam room and connect to the controller with the cable
provided.
OPERATION
5.1 Steaming Control
Once the installation has been completed and checked, turn on the power and
water supply and carry out the following procedure
-
On the control panel press the “ “ key, the key has a time-lapse function, long press for 1 second, and the time and temp windows will display the data.
-
Open the water inlet valve and water will enter the boiler, the indicator LED turns red. When the water level rises to the low water sensor level the elements will switch on and the heating indicator LED will turn on. When the high water sensor is reached the water inlet indicator LED changes to green and the water inlet valve will turn off.
-
After a few minutes of operation, the generator will begin steaming, for small steam generators 2-3 minutes and about 3-5 minutes for larger generators.
-
Press the “ “, the key again and the controller turns off. The display turns off and steam stops being generated there will also be no data on display.
-
Press the “ “ key once more (temp and time display again) after a few seconds the generator will begin producing steam again. Let the generator operate for a short while until the water level falls to the low water level, check that the water inlet valve opens automatically and the water inlet indicator LED turns red. Cold water then enters the boiler and the steam generator starts to produce steam once the high water level is reached. The water inlet valve will close and the LED will turn green.
-
The timer will then count down to show the remaining time and when it reaches 0 the steam generator will stop.
-
Once the steam generator has operated for 10 minutes or more and turns off (manually or automatically) it prepares for an automatic drain-down cycle. Once the temperature of the water falls below 80º C, drain and flush are carried out and steaming can begin.
NOTE The water will only start draining once the temperature has fallen below 80 ℃. -
“ “This button has 2 functions; if the generator is off this button can be used to drain the generator manually. If the generator is switched on it can be used to select the steam on demand operating mode.
-
When the preset temperature for the steam room is reached 2 of the 3 elements will switch off allowing just 1 to continue heating to maintain the temperature. Elements will cycle on and off to maintain the temperature to within approximately 2.5 degrees above or below the preset requirement.
-
Boil dry protection – If the water supply is discontinued the water level indicator LED turns red and the steam generator stops immediately.
-
The “ “ button can output AC230V to power the transformer for a 12V steam room lamp.
-
“ “ button has 2 functions; it can be used to power a fan if fitted and can also be used during the temperature or time setting procedure to confirm the settings (see further details below).
-
“ “ button has 2 functions; it is used to set the time and temperature settings and to start the descaling operation (see further details below).
-
The displayed temperature can be changed from Celsius (default) to Fahrenheit by altering the settings of the JP1 pins on the circuit board.
5.2 Setting Time and Temperature
The steam generator’s default settings are 40º C temp and 1 hour of operation
which can be adjusted as follows;
-
To set time: press “ “ key and the time display window will flash – press “ ▲“ or “▼ “ to adjust the time, every press increases or reduces by 5 minutes, once the desired setting is achieved press “ “ the window will stop flashing. Time may be adjusted from 10 to 240 minutes. Exceeding 240 minutes the display will show “NO” meaning no time limit.
-
To set temperature press “ “ twice. The temperature window will flash, and enter the required temperature by pressing “ ▲“ or “▼ “ to adjust – every press will increase or reduce by 1 ℃. Temperature is adjustable from 30℃-60℃, press “ “ key, and the window will stop flashing.
The memory is lost and reverted back to the factory default settings when the power is cut off.
-
Auto-descaling can only operate when the steam generator is in OFF mode i.e. the boiler has finished steaming; the water has drained and flushed, and the drain LED will be off. Before auto-descaling can commence, a supply of dilute citric acid liquid must be connected from a storage vessel positioned at least 500mm above the steam generator. For the dilution ratio refer to the information supplied with the citric acid.
5.3 Descaling Process
NOTE Do not use strong acids or high concentrations as these may attack and destroy the element or other metal parts of the boiler.
- To start the process press the “ ****“ key for 5 seconds, “Clean” LED light will come on and the time window displays the last setting time (the default setting is 8 hours).
- Press “▲ “ or “▼ “ for 5 seconds, to change the display into hours, increase or decrease to set the required time, each button press will increase or decrease 1 hour, the maximum is 24 hours, and the minimum is 1 hour.
- Once the setting is done the flashing will stop and the process will begin automatically by opening, the inlet valve for the boiler to fill with the descaling solution. The inlet
valve will then close and the solution will remain inside the boiler for the preset time.
5.4 Flushing and Draining
- At the end of the sequence, the drain valve will open and the boiler will drain and then flush with clean water; when the cycle is complete the drain LED will go off.
- Ensure there is sufficient descaling solution in the container to completely fill the boiler – when the liquid level reaches the set point, the LED on the circuit board will light up.
CAUTION If during descaling the power supply is interrupted do not operate
the steam generator until either the descaling process has been reset or the
acid solution has been drained and the boiler flushed with clean water –
minimum 3 flushes.
TROUBLESHOOTING
Fault| Cause|
Solution
---|---|---
There is no display on the control panel w h e n t h e on/off switch is
pressed| 1. No Power Supply
2. Transformer faulty 3.Main Circuit Board
faulty
4. Control Cable or Port faulty| 1. Check power supply voltage.
2. If the Indicator LED of the power supply on the circuit board is not in
red then check the transformer.
3. If the LED is red, remove the controller, use the circuit board and turn
the steam generator If the steam generator doesn’t work .then the circuit
board is faulty, change the circuit board.
4. If the circuit board is ok and the steam generator works normally, Check
the control cable port and controller.
Faulty| Cause|
Solution
---|---|---
The controller is on, Indicator LED of heating is not on and there is no steam
being produced| 1. Water Supply valve is not turned on.
2. Water inlet valve faulty 3.Water Level Probe Faulty
4. Earth Wire of Boiler and Circuit Board Faulty.
5. Circuit Board Faulty.
6. Heat Element Faulty.| 1. If the indicator LED for water level is red.
check the water supply and turn on the water inlet valve.
2. Check the connection of the water level probe.
3. Check the grounding connection of the circuit board and boiler.
4. If the indicator LED for water level is green check the circuit board.
5. Check if the overheated switch is disconnected
6. Check heating elements.
S t e a m generator is turned on but there is no steam output| 1. Main
Circuit Board Faulty
2. Relay Circuit Board Faulty
3. . Heating Elements Faulty| 1. Replace the main circuit board
2. Replace relay circuit board
3. Replace heating elements
T e m p . w i n d o w display “LC”| Wa t e r l e v e l p r o b e connection
faulty| Check connection or change water level probe.
T e m p . w i n d o w display “HC”| Water level probe is short-circuited| 1.
Check water level probe connection
2. Check the controller if it has shorted circuited
Water flows from the steam nozzle when s t e a m generator is off| __
Water inlet valve is faulty| __ Clean and change the water inlet valve
When power is cut off water continues to flow| 1. . Water Inlet Valve Faulty
2. Circuit Board Faulty| Change circuit board or water inlet valve
Faulty| Cause|
Solution
---|---|---
S t e a m generator is turned off but c o n t i n u e s working| 1. Circuit
Board Faulty
2. Controller Faulty 3 . Fau l t y Re l ay s o n
ac c e s s or y c i r c u i t board
4. Water Level Probe| Disconnect the power supply and contact the nearest
Dayliff retailer
When the steam generator is t u r n e d o n, water comes off the valve|
__ Last cycle of draining curtailed due to power loss| Turn off the steam
generator manually and press the drain button, when the steam generator
finishes draining, the drain valve will close, and then turn on the steam
generator.
MAINTENANCE
The single biggest problem with steam generation is the build-up of scale
resulting from dissolved solids within the water. Scaling can cause the
elements to fail, the water level
sensors not to function, and premature failure of the O-rings resulting in
leaks from around the elements. The extent of the problem will vary according
to the degree of hardness in the local water supply.
NOTE It is recommended to use water softener.
All commercial and domestic uses must ensure a regular maintenance routine for descaling the generator. The frequency of this will vary according to the degree of hardness in the local water supply and the amount of time the generator is used. Check the water for hardness and arrange the descaling routine accordingly.
NOTE Faults arising from a failure to descale the generator are not covered by warranty.
Because heating and cooling cause expansion and contraction it is important to
inspect all the water and steam inlets and outlets as well as their pipes and
connectors on a
regular basis to ensure there are no leaks.
Clean the filter net in the magnetic valve according to the water quality in
the location. The wiring and electrical integrity of the generator should be
checked regularly at least once
a year.
TERMS OF WARRANTY
I) General Liability
-
In lieu of any warranty, condition, or liability implied by law, the liability of Davis & Shirtliff (hereafter called the Company) in respect of any defect or failure of equipment supplied is limited to making good by replacement or repair (at the Company’s discretion) defects which under proper use appear therein and arise solely from faulty design,
materials or workmanship within a specified period. This period commences immediately after the equipment has been delivered to the customer and at its termination, all liability ceases. Also, the warranty period will be assessed on the basis of the date that the Company is informed of the failure. -
This warranty applies solely to the equipment supplied and no claim for consequential damages, however arising, will be entertained. Also, the warranty specifically excludes defects caused by fair wear and tear, the effects of careless handling, lack of maintenance, faulty installation, incompetence on the part of the equipment user, Acts of God, or any other cause beyond the Company’s reasonable control. Also, any repair or attempt at repair carried out by any other party invalidates all warranties.
ii) Standard Warranty
General Terms
If equipment failure occurs in the normal course of service having been
competently installed and when operating within its specified duty limits
warranty will be provided as follows:-
- Up to 1 year – The item will be replaced or repaired at no charge.
- Over 1year, less than 2 years – The item will be replaced or repaired at a cost to the customer of 50% of the Davis & Shirtliff market price.
The warranty on equipment supplied or installed by others is conditional upon the defective unit being promptly returned free to a Davis & Shirtliff office and collected thereafter when repaired. No element of site repair is included in the warranty and any site attendance costs will be payable in full at standard charge-out rates. Also, proof of purchase including the purchase invoice must be provided for a warranty claim to be considered.
DAY LIFE is a brand of Davis & Shirtliff
for inquiries contact
Davis & Shirtliff, Ltd.
P.O. Box 41762 – 00100, Nairobi, Kenya
Tel: 6968000/ 0711 079 000
or visit
www.dayliff.com
for details of the nearest branch or stockist
INS498A-04/22
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