Takagi GS-20W-AU5/6 User manual
INSTALLATION GUIDE and
OWNER’S GUIDE
GAS WATER HEATERS
GS-20W-AU5/6
GS-26W-AU5/6
EXTERNAL INSTALLATION ONLY
WARNING
• DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE WHILE IT IS IN
OPERATION.
• DO NOT USE OR STORE FLAMMABLE MATERIALS IN OR NEAR THIS
APPLIANCE.
• DO NOT PLACE ARTICLES ON OR AGAINST THIS APPLIANCE.
• DO NOT MODIFY THIS APPLIANCE.
SPARK BUSINESS GROUP PTY LTD
2
Before you install the hot water system, please
install it correctly. To avoid the risks that are always
present when you install an appliance, it is import-
ant that the hot water system is installed correctly
to avoid misuse and hazards.
After unpacking the hot water system please check
it is not damaged. If in doubt, do not use the hot
water system but contact your local Customer Care
Centre using the number located at the back of this
here after be referred to as “water heater” for the
hot water system as a whole may also be referred
to as “hot water system” for simplicity.
Meanings of symbols used in this manual are shown
below:
Danger: Indicates an imminently hazard-
death or serious injury.
Warning: Indicates an imminently hazard-
in death or serious injury.
Indicates an imminently hazard-
in minor or moderate injury.
-
portant but not hazard related.
and users. Please keep it in a safe place for future reference.
FOR THE INSTALLER
1. IMPORTANT
•
•
• -
•
• -
•
CONTENTS
1.IMPORTANT...............................................2
......................................2
.................................................3
.......................................3
2.SPECIFICATIONS .........................................3
.........................................4
.............................................5
...5
...................................6
7.INSTALLATION............................................7
........7
............8
......................9
8.GAS CONNECTION....................................
...........................
........................
9.WATER CONNECTIONS .............................
........................
11.REMOTE CONTROLLER (OPTIONAL ITEM).
.........
WIRING TO THE WATER HEATER ..................
12.INITIAL OPERATION .................................
..............................
................
.................................
....
................................
..................................
...................
........
.................22
17.PCB ERROR CODE.....................................24
18.WIRING DIAGRAM ...................................25
19.DIP SWITCH SETTINGS .............................25
.................................26
21.WATER FLOW AND
WATER TEMPERATURE .............................28
22.WARRANTY CONDITIONS.........................28
3
FOR SERVICE
-
FOR THE PLUMBER
NOTE:
.
metres of pipework must be used between the
2. The Hot water line should be insulated with
3. -
•
to be a minimum of
the water heater.
•
mm from hot water
or outlet.
First tap or outlet
2. SPECIFICATIONS
MODEL
Gas Type Nat. Gas Nat. Gas
Inlet Pressure
Pressure kPa
Height mm
Width mm
Weight kg
Electronic
NOTES:
•
•
•
WARNING
-
4
INTRODUCTION
•
the water heater.
•
•
• -
less hot water for your needs.
• The principle behind the water heater is simple:
Bur ner
Hea t ex c hanger
Ex haus t
Fl ow s ens or
Ther mi s t or
Comput er
boar d
AC240V
Ga s va l ve
Fan
Col d wat er i nl et
Ga s
Hot wa t er out l et
A hot water tap is turned on.
2. Water enters the heater.
3.
4.
5.
6.
amount of hot water at the set temperature.
7.
5
ACCESSORIES
DIMENSIONS AND CONNECTION POINTS
339
228
5323
84
44 HOT
HOT
HOT
332
95
544
6
SAFETY GUIDELINES
WARNING
•
•
-
•
heater indoors.
• -
Carefully plan where you intend to install the Water Heater. Please ensure:
•
•
2.
.
MANUFAC
TURER.
3. If any problem should occur, turn off all hot water taps and turn off the gas. Then call a
trained technician or the Gas Company or the manufacturer.
WARNING
• C can cause severe burns or death from scalding.
Children, the disabled and the elderly are at a high risk of being injured. Feel the
within Australia.
•
the vicinity of this appliance.
•
gas valves and can cause severe injury or death. Follow the diagram on p.
•
immersed in water. Immediately call a licensed plumber, a licensed gas
if necessary.
•
unit has electrical power. The warranty will not be covered if the heat
7
7. INSTALLATION
CONFIRM THE APPLIANCE SUITABILITY
met.
•
•
•
• -
•
• The manifold pressure is preset at the factory. It is computer controlled and should not
need adjustment.
•
services.
• -
•
•
8
SELECTING AN INSTALLATION LOCATION
CAREFULLY READ THIS SECTION BEFORE INSTALLING THE WATER HEATER. WHEN A
FOLLOWED EXACTLY.
• -
• Although the water heater is designed to operate with minimal sound, you
should not install the unit on a wall adjacent to a bedroom, or a room that is
•
WARNING
•
-
•
•
•
Install the unit so that it can be connected or removed easily.
•
• -
mulate.
• -
lems for other services.
•
•
•
suitable locations.
• -
9
・
・
From a drain or soil pipe
Horizontally from an openable window, door, non-mechanical air inlet, or any other opening
・
・
・
・
Openable
window
From a mechanical air inlet, including a spa blower
・
・
・
・
Ref. Item
Minimum clearances
Natural Fan
assisted
75
f
c
n
j
jjh
h
h
ee
d
d
b
c
a
g
See note 3
T
T
T
g
See note 2
I
P
M
a
b
c
d
e
f
g
h
j
n
T = Flue terminal
I = Mechanical air inlet
M = Gas meter
allow multiple series of the Water Heaters to be positioned side by side.
Power cord
Gas supply inlet
Gas valve
8. GAS CONNECTIONS
heater and manual gas valve located on
the outside of the unit before beginning
2.
not connect water line to gas inlet. It may
SIZING AND CONNECTING
Check the gas type label to make sure that the water heater is available for your gas, and that the
2. -
3.
heater is disconnected to avoid any damage to the water heater.
•
• Always use approved connectors to connect the unit to the gas line. Always purge the
•
• The manifold pressure is preset at the factory. It is computer controlled and is not to be
• When the gas connections are completed, it is necessary to perform a gas leak
test either by applying soapy water to all gas fittings and observing for bubbles or
by using a gas leak detection device.
WARNING
Conversion of this unit from natural gas to propane or propane to natural gas cannot be
done in the field. Contact your local retailer or distributor to get the correct unit for your
gas type.
WARNING
Measuring inlet gas pressure and testing gas leakage are
WARNING
-
piping system at test pressures above 3 kPa.
MEASURING INLET GAS PRESSURE AND TESTING GAS LEAKAGE
The appliance and its gas connections must be tested for leak and the inlet gas pressure must
be measured before placing the unit in operation for properly performing and safety.
2.
3. Remove the screw for the pressure port located on the gas inlet of the water heater shown in
the diagram below.
4. Connect the manometer to the pressure port.
5. Re-open the manual gas valve. Check to see that there are no gas leaks with a gas leak detec-
to r.
6.
7. -
9. WATER CONNECTIONS
Filter
Hot water
outlet
Cold water
inlet Gate or ball
valve on inlet
WARNING
Heater as this will cause your heater to
operate improperly.
•
suitable for potable water systems.
•
the main water supply line and the water heater.
• Only a gate valve or a ball valve is to be used on the cold water supply.
• No stop taps or check valves are to be used as this will void the warranty and damage the wa-
ter heater.
•
• -
heater.
•
COUNTERCLOCKWISE
AND THEN CLEAN AND
REPLACE
1. TURN OFF THE WATER
INLET SUPPLY VALVE.
2. OPEN A HOT WATER
TAP TO RELEASE THE
LINE PRESSURE.
Filter
ELECTRICAL CONNECTION
2.
3.
metre from the base of the water heater for easy access.
4.
necessary.
5. If the cord supplied with this appliance must be replaced, it
must be replaced with appliance wiring material supplied by
the Manufacturer.
WARNING
When servicing or replacing parts within the water heater, label all wires prior to discon-
11. REMOTE CONTROLLER (OPTIONAL ITEM)
The water heater can be installed with up to three remote controllers. The remote controller
• The output water temperature can be adjusted only by a remote controller which has the
•
-
• -
•
•
• and controllers are water resistant, however should not be posi-
of the wall and the controller.
• is installed such as the main bathroom, and is installed such as the
ensuite bath room.
•
•
Main Ensuite
37 38 39 42 43 44 45 46 47
37 38 39 42 43 44 45 46 47
WARNING
•
•
•
•
• -
SULATION PLATE SHOULD BE PROVIDED BEHIND THE MOUNTING POSITION.
REMOTE CONTROLLER INSTALLATION
Crimp the fork terminals provided to the wires.
•
•
2.
controller.
3. Install the wiring downward through the cable trench and
4.
25 mm
45 mm
Connector base
83.5 mm
CONNECTION OF REMOTE CONTROLLER WIRING TO THE WATER HEATER
2. Remove the front cover from the water heater. There are 3 screws on the front cover.
3.
4.
5. Replace the front cover. Then connect the power plug.
Remote control wires
Remote control terminals
Put the remote control wires
the unit’s casing.
WARNING:
•for leaks before supplying power to the water heater.
• Open the main gas supply valve to the unit using only your hand to avoid any spark. Never use
•
•
•
•to the heater.
•to remove any air pocket.
• -
WARNING: IF YOU SMELL GAS:
•
•
• Immediately call your gas supplier from a neighbour’s phone. Follow the gas sup-
plier’s instructions.
• If you cannot reach your gas supplier,
12. INITIAL OPERATION
1.Once the above checks have
been completed, please clean
2.Fully open the manual water
control valve on the water sup-
ply line.
. Open a hot water tap to
that tap.
Then close the hot water tap.
.Fully open the manual gas
control valve installed and turn
supply to the water heater.
.
temperature at the tap does not
.Now you are ready to enjoy
hours of endless hot water.
NORMAL OPERATION
•
• Flow rate to keep the water heater running
WITHOUT REMOTE CONTROLLER
1.Open a cold water tap. 2.
water to get the suitable temper-
ature water.
.Close the water taps.
NOTE: The water temperature is set at
temperature of hot water without remote controller, refer to diagram below.
WARNING
•
Children, the disabled and the elderly are at a high risk of being injured. Feel the
-
within Australia.
• -
40°C
60°C
DEFAULT
60°C
45°C
55°C
Temperature settings
50°C
DEFAULT
50°C
OFF
ON
TMP1
TMP2
TMP3
876
TMP1
TMP2
TMP3
OFF
ON
876
TMP1
TMP2
TMP3
OFF
ON
876
TMP1
TMP2
TMP3
OFF
ON
876
TMP1
TMP2
TMP3
OFF
ON
876
WARNING
• -
•
•
•
*NOTE:
WITH ONLY MAIN REMOTE CONTROLLER INSTALLED
lamp is ON and the set temperature is displayed on the
remote controller.
2. Adjust the set temperature. can change
3.
water to get suitable temperature water. Ensure the
4. Close the hot water tap and cold water tap, and ensure
Priority
display
lamp
lamp
Priority
WITH MULTIPLE REMOTE CONTROLLERS INSTALLED
Priority
display
lamp
lamp
Priority
Priority
display
lamp
lamp
Priority
on and the set temperature is displayed on each remote
controller.
2. Adjust the set temperature. The set temperature can
only be changed by the remote controller with the
-
water temperature of each remote controller, see the
NOTE: Each remote controller can individually store
safety reason.
3.
water to get suitable temperature water. Ensure the
4. Close the hot water tap and cold water tap, and ensure
FREEZE PREVENTION
devices will not work if the electrical power source is disconnected. The unit has been rated for
The pipe heaters are located on the Water Heater only. Any hot or cold water pipes
located outside of the unit will not be protected. Properly protect and insulate these
pipes from freezing.
WINTER SHUTDOWN
your unit from freezing and being damaged.
Gas
Cold
Hot
plug Power
supply
Manual
water valve
Manual
gas valve
2.
3.
the water supply line.
4.
has ceased, close all hot water taps.
5. Have a bucket or pan to catch the water from the
unit’s drain plugs. the drain plugs to
drain all the water out of the unit.
6. Wait a few minutes to ensure all water has com-
pletely drained from unit.
7.
•
• Purge the water line of debris.
• Turn on the manual water control valve located on the water supply line.
•
• Turn on the manual gas control valve located on the gas supply line.
• Turn on the power supply to the Water Heater.
This manual suits for next models
1
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