DAYLIFF DSTEAM90 Installation instructions

Steam Generator
STEAM GENERATOR

SPECIFICATIONS
1.
1
2.
SYMBOLS & WARNINGS 2
4. INSTALLATION 7
4.3 Water & Steam Connection 9
4.4 Installation for Controller
10
4.1 Steam Room Design 7
6. TROUBLE SHOOTING 14
8. TERMS OF WARRANTY 17
© Davis & Shirtliff Ltd 2022
Contents herein are not warranted
5. OPERATION 12
7. MAINTENANCE 16
5.2 Setting Time & Temperature 13
5.3 Descaling Process
14
5.1 Steaming Control 12
5.4 Flushing & Draining
14
3.
DESIGN DETAILS 2
4.2 Equipment Installation 8

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
2
necessary. If hardness exceeds 100ppm a water softener and a cartridge prefilter is
required to ensure efficient operation on the water inlet
Congratulations on selecting Dayliff Steam Generator. They are
manufactured to the highest standards and if installed and operated
correctly will give many years of efcient and trouble free service.
Careful reading of this Installation Manual is therefore important,
though should there be any queries they should be referred to the
equipment supplier.
1. SPECIFICATIONS
Dimensions(mm)
Model Size
(kW)
Heating
Elements
(kW)
Phase/
Current
(A)
Room
Volume
3
(m )
Weight
(Kg)
L W H
DSTEAM90 9 3x3 1-39/3-13 6-10 210 370 14
530
DSTEAM120 12 4x3 3-17 8-12
240 460
DSTEAM150 15 5x3 3-22 12-17 18
1
STEAM GENERATOR

2. SYMBOLS AND WARNINGS
This appliance must be connected to an all pole isolator.
WARNING
Disconnect the power supply before making any electrical
connections.
WARNING
Ensure correct voltage for single and three phase steam
generator.
WARNING
This equipment must be installed by a qualied technician.
WARNING
The steam inlet nozzle should be set at approximately 300mm
from the oor and at least 200mm from wall.
WARNING
The steam generator should be installed in an accessible place
where both the electrical power and water supply can be
isolated in an emergency.
WARNING
The minimum water inlet pressure is 0.25 bar and a maximum
of 8 bar, working pressure should not exceed 5 bar.
WARNING
The steam pipe length from steam generator to steam room
should be kept to a minimum, 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.
WARNING
Bends and elbows should be kept at a minimum. The pipe line
should be kept simple and straight to prevent condensate from
gathering and causing blockage.
WARNING
There must be no valve or other blockage in the steam pipe.
WARNING
2

The steam pipes should be metallic or of any other material
which can withstand 150°C temperature, copper pipe is
recommended.
WARNING
Steam generator should be installed on level ground.
WARNING
The Steam generator should not be in close proximity to
hazardous substances.
WARNING
The size of heater required to heat a particular size of steam
room is dependent on type of material used for construction,
the height of the steam room and the ambient temperature.
NOTE
3
Frame and functions of the Steam Generator
Fig 4
3. DESIGN DETAILS

No.
1
5
Automatically controls the water flow (maximum pressure
2bar)
2
3
4
Part Description
Water Inlet Valve
Controlled by controller turn on or turn off to drain water
Drain Valve
The entry route of power wire
Power Entry
The entry route of control cable
Control Cable Entry
BoilerStainless Steel Tank
6Reduce the loss of the boiler heat
Insulation Material
7Detect the water levelWater Level Probe
8Steam OutletSteam Outlet
9
13
Operates if the pressure in the boiler exceeds 10.2bar
10
11
12
Pressure Relief Valve
0
To protect boiler when temperature exceeds110 C
Overheat Switch
Control Centre
Main Circuit Board
Connect and control the heat element
Accesorial Circuit
Board
Connection for power supply
Terminal
4
No. Part Description
14 Connection for earth wire Earth Wire Plug
15 Descaling liquid inlet (1/2 inch)Descaling Liquid Inlet
16 Electrical ElementHeat Element

OC-B Controller Display
Fig 5
No.
1Switch ON & OFF
2
3
Part Description
Dual function button push to select steam on demand mode
or to drain the generator manually when not steaming
On
Off
On
Off
Light
Light
Temperature Display
Time Display
Push to operate lights
Drain
Drain
Fan
Mode
Mode
Enter
4Dual function button used when steaming to set the
time/temperature
5
6Decrease button
Increase button
Set
Clean
Set
Clean
5
1
2
5
4
16
15
9
14
13
3
6
7
17
10
8
11
12
Light
Clean
Fan
Water Drain Mode Heating Overheating

No. Part Description
7Dual function button switches the fan on and off also used
to confirm
Fan
Enter
8Display the resting and operating time of the steam
generator
Time Display
Window
9Display the detected temperature of steam room
Temp Display
Window
10 Indicator LED for the lamp of steam room
Light LED
11
Indicator LED for water level .Red means water is filling,
green means ideal water level is reached. If the LED is
always in red (exceed 5 minutes). Check water supply and if
water level valve is blocked.Otherwise the water level inlet
valve may be damaged .
Water LED
12 Indicator LED for draining – shows red for manual draining
and green for automatic draining at the end of the cycle.
Drain LED
13 Operation mode indicator red is for steam on demand
mode and green for conventional timing.
Mode LED
14 Green indicates heating is on, red indicates the required
temperature
Heating LED
15 Indicator LED for over heat, red means the steam generator
has been cut off due to heat element being too hot
Overheat LED
16 Indicator LED for fan in operation
Fan LED
17 Indicator LED shows descaling in operation.
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 seonds, the time display will show ”Long”, then enter “OC-S” mode).
Clean LED
In order for the generator to operate in steam on demand
mode the steam on demand button must be connected.
NOTE
OC-S Steam on Demand Switch
6

Commercial Mode Instruction (OC-B+OC-S )
If OC-B is under domestic model, only the OC-B controls the steam generator .OC-S will
not work. When OC-B is used on commercial model, the steam generator will be under
waiting status (the time window shows “Long” and on circuit board the LED will be
flashing) , press OC-S to operate steam generator , 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.
4. INSTALLATION
7
4.1 Steam Room Design
As a guide; For lightweight materials such as plastics and laminates, 1 kW will heat up to
3
1m of air. For dense materials such as stones and ceramics which conduct heat more
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.
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 generator or three 10 kW steam generators .
Fig 1: Schematic Layout Multiple Generator
Temperature Sensor
Master
OC-B Controller
To Next Slave
Slave 1 Slave 2
Temperature
Sensor
OC-B Controller
Fig 2: Schematic Wiring of Multiple Generators
Master Slave 1
To Slave
Slave 2
To Next Slave
From Master

Filter
Fig 3: Typical Layout of Multiple Generators
0
The OC-B controller has a working window of 10-240 minutes and 30-60 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 in regular
intervals of 30minutes.
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.
4.2 Equipment Installation
Fig 6: Typical Room Layout
Insulation
Closet
Basement
Steam Nozzle
Under Washing Basin
Steam Generator
OC-B Controller
(can be either in or
outside the steam room)
8

Fig 7: Minimum Setting Dimensions
1. The water supply pipe and steam pipe should comply with local standards.
2. Connect the water inlet valve of the generator to the 15mm mains water supply using
a flexible hose with 1/2 inch fittings.
3. Steam outlet (1/2 inch or 3/4 inch) should use the same dimension copper pipe for
ease of connection
4.3 Water & Steam Connection
Fig 8: Accessory Installation Layout
T h e s te a m n o z z l e
sh o ul d be 3 00 m m
away from the ground .
For user comfort it
s h o u l d b e a t t h e
farthest place from the
seat.
STEAM GENERATOR
Valve
Water Level Probe
Overheat Switch
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 steam ow to a safe direction should the valve
operate.
NOTE
9
315mm - 9/12kW
215mm
415mm - 15kW
215mm
ŸTo hang the generator on a wall drill 3 holes 8mm in diameter as below image and
use the wall plugs and screws provided.
ŸFix the top 2 screws in place first then hang the generator by the 2 keyhole shaped
holes in the back plate.
ŸThen with the front cover removed fix the third screw to secure the unit in place.

4.4 Installation of Controller and Temperature Probe
Steam generator controller is water proof and can be installed inside or outside the steam
room according to customer preference.
1. The control panel should be installed at a height of approximately 1200mm for ease
of use.
2. To Install: drill a Φ40mm hole on wall. Open the front cover of steam generator. Fix
the control cable (6 core) and temperature sensor cable (2 cores) to the relevant
ports. Put the protruding back of controller in the hole at the bottom of controller press
close to the wall and place back the cover.
Control panel installation: Screw one end to circuit board ports in steam generator
and connect the other to the controller's cable.
Fig 9: Controller Installation
118mm
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.
10
Temperature
Sensor 4
Screw
Installation for Power Supply and Control Cable
1. Confirm the correct voltage of power supply and the wires.
2. Remove the knock out for the power cable entry and use a rubber grommet to protect
the cable, connect the conductors to the correct terminals. For single phase power
use the copper bridge connectors.
3. Ensure the power supply wire and control cable remains separated to prevent
magnetic field of power supply wire from interfering with control cable signal.
4. Connect the drain outlet to a suitable drain via a copper pipe with the appropriate
fittings.
5. Make a secure connection between steam nozzle & steam pipe.
6. Use 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.

Fig 10
11
9kW Steam Generator Circuit Diagram
12/15kW Steam Generator Circuit Diagram
Fig 11

12
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 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.
5. OPERATION
Once the installation has been completed and checked, turn on the power and water
supply and carry out the following procedure
1. On the control panel press the “ “ key , the key has a time-lapse function, long
press for 1 second, the time and temp windows will display the data.
2. 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.
3. After a few minutes of operation the generator will begin steaming, for small steam
generator 2-3 minutes and about 3-5 minutes for larger generators.
4. Press 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.
5. 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.
6. The timer will then count down to show the remaining time and when it reaches 0 the
steam generator will stop.
7. Once the steam generator has operated for 10 minutes or more and turns off
(manually or automatically) it prepares for automatic drain down cycle. Once the
0
temperature of the water falls below 80 C, drain and flush are carried out and
steaming can begin.
On
On
Off
Off
On
Off
5.1 Steaming Control
The water will only start draining once the temperature has
fallen below 80 ℃.
NOTE

13
8. “ “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.
9. 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.
10. Boil dry protection – If the water supply is discontinued the water level indicator LED
turns red and the steam generator stops immediately.
11. The “ “ button can output AC230V to power the transformer for a 12V steam
room lamp.
Drain
Model
Light
12. “ “ 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).
13. “ “ button has 2 functions; it is used to set the time and temperature settings and to
start the descaling operation (see further details below).
14. The display temperature can be changed from Celsius (default) to Fahrenheit by
altering the settings of the JP1 pins on the circuit board.
Fan
Enter
Set
Clean
5.2 Setting Time and Temperature
0
The steam generator default settings are 40 C temp and 1 hour of operation which can
be adjusted as follows;
The memory is lost and reverted back to the factory default
settings when the power is cut off.
CAUTION
Fan
Enter
Fan
Enter
Set
Clean
Set
Clean
1. 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.
2. To set temperature press “ “ twice. The temperature window will flash, 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.
3. 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, 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.

14
Do not use strong acids or high concentrations as these may
attack and destroy the element or other metal parts of the
boiler.
NOTE
Set
Clean
1. To start the process press the “ “ key for 5 seconds, “Clean” LED light will come on
and time window display last setting time (default setting is 8 hours).
2. Press “ “ or “ “ for 5 seconds, to change display into hours, increase or decrease
to set the required time, each button press will increase or decrease 1 hour, maximum
is 24 hours, minimum is 1 hour.
3. 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.
5.3 Descaling Process
5.4 Flushing and Draining
1. 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.
2. Ensure there is sufficient descaling solution in the container to completely fill the boiler
- when liquid level reaches set point , the LED on circuit board will light up.
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 ushed with clean water – minimum 3 ushes.
CAUTION
6. TROUBLE SHOOTING
Fault
1. Check power supply voltage.
2. If Indicator LED of power supply on
circuit board is not in red then check
transformer.
3. If the LED is red, remove controller, use
circuit board and turn the steam
generator If steam generator doesn’t
work .then circuit board is faulty, change
circuit board.
4. If the circuit board is ok and the steam
generator works normally, Check the
control cable port and controller.
Cause Solution
1. No Power Supply
2. Transformer faulty
3.Main Circuit Board
faulty
4. Control Cable or Port
faulty
There is no
display on the
control panel
w h e n t h e
on/off switch
is pressed

Faulty Cause Solution
1. If indicator LED for water level is red.
check water supply and turn on water
inlet valve.
2. Check the connection of water level
probe.
3. Check grounding connection of circuit
board and boiler.
4. If indicator LED for water level is green
check circuit board.
5. Check if overheat switch is disconnected
6. Check heating elements.
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.
The controller
is on,
Indicator LED
of heating is
not on and
there is no
steam being
produced
1. Replace main circuit board
2. Replace relay circuit board
3. Replace heating elements
1.Main Circuit Board
Faulty
2.Relay Circuit Board
Faulty
3.Heating Element s
Faulty
S t e a m
generator is
turned on but
there is no
steam output
Check connection or change water level
probe.
Wa t e r l e v e l p r o b e
connection faulty
T e m p .
w i n d o w
display “LC”
15
1. Check water level probe connection
2.Check controller if it is has shorted
circuited
Water level probe is
short circuited
T e m p .
w i n d o w
display “HC”
Clean and change water inlet valve
Water inlet valve faulty
Water flows
from steam
nozzle when
s t e a m
generator is
off
Change circuit board or water inlet valve 1.Water Inlet Valve
Faulty
2. Circuit Board Faulty
When power
is cut off water
continues to
flow

Faulty Cause Solution
Disconnect power supply and contact
nearest Dayliff retailer
1. Circuit Board Faulty
2. Controller Faulty
3 . Fa ult y Re l a ys o n
a c c e sso r y c i rc ui t
board
4. Water Level Probe
S t e a m
generator is
turned off but
c o n t i n u e s
working
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.
Last cycle of draining
curtailed due to power
loss
When steam
generator is
t u r n e d o n ,
water comes
off the valve
16
7. 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.
It is recommended to use water softener.
NOTE
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.
Faults arising from a failure to descale the generator are not
covered by warranty.
NOTE
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.
Wiring and electrical integrity of the generator should be checked regularly at least once
a year.

8. TERMS OF WARRANTY
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
ofce 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 chargeout rates. Also proof of purchase including the purchase
invoice must be provided for a warranty claim to be considered.
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.
ŸThis warranty applies solely to 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.
17