Bosch Appliances Water Heater BC2600RA User Manual

Installation Instructions  
Installation Manual  
+
Bosch Eco26  
External Model  
BC2600RA  
To be installed and serviced only  
by an authorised person  
This appliance is not suitable for  
use as a pool heater  
The "authorised installing person" is  
responsible for:  
1. Correct commissioning of this  
appliance.  
2. Ensure unit performs to the  
specifications stated on the  
rating label.  
3. Demonstrate operation of unit to  
customer before leaving.  
4. Hand these instructions to  
customer  
.
This appliance must be installed in accordance with the manufacturer's  
installation instructions, AS5601, AS/NZS3500.4, AS3000 wiring regulations  
and all Local Building, Water and Gas fitting regulations.  
Failure to install this appliance in accordance with these installation  
instructions may void warranty  
Service Department: 1300 30 70 37  
In the interest of continued product improvement, Bosch reserves the  
right to alter these specifications without notice.  
SAR8854  
Rev. 07/08  
*SAR8854 C*  
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Installation Instructions  
The following accessories are included with the unit.  
Check for any missing items before starting installation.  
1. Included Accessories  
Part  
Shape  
Qty  
Part  
Shape  
Qty  
Owner's Guide,  
Installation Manual  
(this document)  
1
each  
Tapping Screw  
5
The accessories listed below are not  
included with the units, but may be necessary  
for installation.  
2. Optional Accessories  
Part  
Shape  
Qty  
Part  
Shape  
Qty  
Bathroom Controller  
Bath Fill  
Main Controller  
Bath Fill  
Priority  
Burner on  
Temp.  
Priority  
Burner on  
Temp.  
ON/OFF  
ON/OFF  
Bathroom Controller  
(YPRS67XB)  
Main Controller  
(YPRM67XB)  
1
1
Call  
Priority  
Bath Fill  
Volume  
setting  
Set Time  
Bath Fill  
Press 2sec.  
to set time  
YPRS67XB  
YPRM67XB  
Sub Controller  
ON/OFF  
Hot Water Temp  
Priority  
Burner on  
Sub Controller  
(YPRP62XB)  
1
Call  
YPRP62XB  
Hot Water Temp.  
Maximum two Sub controllers can be used. See P.14 for details.  
3
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Installation Instructions  
Before Installation  
3.  
WARNING  
Check the Gas  
Check that the data plate (located inside of front cover) or  
a temporary label (located on the front cover)  
For NG Gas  
indicates the correct type of gas.  
Check that the gas supply line is sized for  
178 MJ/hr for this unit.  
DO NOT OPERATE WITH ANY OTHER GAS TYPE.  
MODEL BC2600RA  
GAS TYPE  
: NG  
GAS CONSUMPTION  
HEAT OUTPUT  
: 178MJ/hr  
: 45.7kW  
Check the Power  
ELECTRICAL RATING  
RATED POWER  
: AC240/230V 50Hz  
: 56.0W  
The power supply required is 240/230VAC, at 50Hz.  
Using the incorrect voltage may result in fire or  
electric shock.  
HOT WATER SUPPLY CAPACITY : 26L/min RAISED 25°C  
TEST POINT  
: M
Warning labels  
Located on the right side of the casing -PLEASE READ THESE LABELS CAREFULLY!  
Use Extreme Caution if Using With a Solar Pre-Heater  
A solar transfer valve must be installed with all solar applications when using Bosch Eco 26+.  
Solar systems installed without a solar transfer valve will void all Bosch warranty.  
CAUTION  
Do Not Use Equipment for Purposes Other Than Those Specified  
Do not use for other than increasing the temperature of the water supply, as unexpected accidents  
may occur as a result.  
Check Water Supply Quality  
If the water supply is hard, acidic or otherwise impure, treat the water with approved methods in  
order to ensure full warranty coverage.  
4
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Installation Instructions  
Choosing Installation Site  
* Locate the appliance in an area where water leakage from the unit or connections will not result in  
damage to the area adjacent to the appliance or to the lower floors of the structure. When such  
locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be  
installed under the appliance. The pan must not restrict combustion air flow.  
4.  
DANGER  
This water heater is for outdoor installation only.  
Never install it indoors.  
Do not enclose the termination with corrugated  
metal or other materials.  
This will cause carbon monoxide  
poisoning and a potential fire  
hazard.  
Indoor  
WARNING  
Avoid places where fires are common, such as those where petrol,  
benzene and adhesives are handled, or places in which corrosive gases  
(ammonia, chlorine, sulfur, ethylene compounds, acids) are present.  
Prohibited  
May result in fire.  
Avoid installation in places where dust or debris will accumulate.  
Dust may block the air-supply opening, causing the performance of the  
device fan to drop and incomplete combustion to occur as a result.  
Avoid installation in places where special chemical agents  
(e.g., hair spray or spray detergent) are used.  
Ignition failures and malfunction may occur as a result.  
Carbon Monoxide Poisoning Hazard. Do not install this water heater in a  
mobile home, recreation vehicle or on a boat.  
5
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Installation Instructions  
CAUTION  
Install the water heater in a location where it is free from obstacles and  
stagnant air.  
Consult with the customer concerning the location of installation.  
Do not install the water heater near staircases or emergency exits.  
Do not install the water heater where the exhaust will blow on outer  
walls or material not resistant to heat. Also consider the surrounding  
trees and animals.  
The heat and moisture from the water heater may cause discoloration of  
walls and resinous materials, or corrosion of aluminium materials.  
Prohibited  
Do not locate the vent termination directed towards a window or any  
other structure which has glass or wired glass facing the termination.  
Install in a location where the exhaust gas flow will not be affected by  
fans or range hoods.  
Take care that noise and exhaust gas will not affect neighbours.  
Avoid installation where the unit will be exposed to excessive winds.  
Before installing, make sure that the vent termination will have the proper  
clearances according to AS5601, or your local authority.  
On combustible surfaces e.g. weatherboards etc. it is not required to  
install a fire proof back board.  
5. Installation Clearances  
WARNING  
Before installing, check for the following:  
The location of the flue terminal must comply with the clearances shown on this page. If you are  
unsure about clearances not indicated here, in general refer to AS5601, or your local authority. In  
Western Australia refer to the WA Office of Energy rules and regulations.  
Flue outlet must be free from any combustible material.  
6
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Installation Instructions  
CLEARANCES FOR FLUE TERMINAL (front of heater)  
The location of the flue terminal must comply with the clearances shown on this page. If you are unsure  
about clearances not indicated here, in general refer to AS5601, or your local authority. In Western  
Australia refer to the WA Office of Energy rules and regulations.  
a
c
T
j
j
j
h
h
h
W
I
e
e
n
door  
f
d
g
P
k
d
T
M
b
g
c
T
k
Use as a guide only. Refer to AS5601 or local gas fitting rules for specific locations  
T=Flue terminal  
I=Mechanical air inlet  
M=Gas meter  
P=Electricity meter  
or fuse box  
Shaded area indicates  
prohibited area  
W=Window  
Ref  
a
Item  
Minimum  
Clearance  
mm  
Fan  
assisted  
Natural  
draft  
Below eaves,balconiesand other projections  
Appliancesup to 50MJ/hinput  
300  
500  
300  
500  
1000  
500  
150  
500  
200  
300  
300  
300  
1000  
500  
75  
Appliancesover 50 MJ/h input  
b
c
d
e
f
Fromthe ground, abovea balconyor other surface  
Froma return wall or externalcorner  
Fromagasmeter  
Froman electricity meter or fusebox (P)  
Froma drain pipe or soilpipe  
g
Horizontallyfrom any building structure or obstruction facing a flue  
terminal  
500  
h
j
From any other flue terminal, cowl, or combustion air intake  
Horizontallyfrom an opening window, door, non-mechanicalair inlet. Or other opening  
into a building with the exception of sub floor ventilation  
500  
300  
Appliancesup to 150MJ/h  
500  
300  
300  
500  
1500  
1500  
1000  
Appliancesover 150MJ/h input up to 200MJ/h input  
Appliances over 200 MJ/h input up to 250 MJ/h input  
Appliances over 250 MJ/h input  
1500  
1500  
1500  
All fan assistedflue appliancesin the direction of discharge  
Froma mechanicalair inlet, including spablower  
k
1500  
n
Verticallybelow an openablewindow, non-mechanicalair inlet, or anyother opening into a  
building with the exception of sub-floor ventilation:  
Spaceheatersup to 50 MJ/h  
Other appliancesup to 50 MJ/h  
150  
500  
150  
500  
Appliancesover 50 MJ/h and up to 150MJ/h input  
Appliancesover 150 MJ/h input  
1000  
1500  
1000  
1500  
7
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Installation Instructions  
6. Installation  
Securing to the wall  
Installation must conform with all local building, water or Gas Regulations or AS5601.  
The weight of the device will be applied to the wall. If the strength of the wall is not suffi-  
cient, reinforcement must be done to prevent the transfer of vibration.  
Do not drop or apply unnecessary force to the device when installing. Internal parts may  
be damaged and may become highly dangerous.  
Be sure to do  
Install the unit on a vertical wall and ensure that it is level.  
Item  
Check  
Illustration  
Location of Screw Hole  
CAUTION  
When installing with bare hands, take caution to  
not inflict injury.  
Mounting Bracket  
(upper)  
Be careful not to hit electrical wiring, gas, or water  
piping while drilling holes.  
1. Drill a single screw hole, making sure to hit a stud.  
2. Insert and tighten the screw and hang the unit by  
the upper wall mounting bracket.  
3. Determine the positions for the remaining four screws  
(two for the top bracket and two for the bottom), and  
remove the unit.  
Locating Screw Holes  
Tapping Screw  
4. Drill holes for the remaining four screws.  
5. Hang the unit again by the first screw, and then  
insert and tighten the remaining four screws.  
6. Take waterproofing measures so that water does  
not enter the building from screws mounting the  
device.  
Make sure the unit is installed securely so that it will  
not fall or move due to vibrations or earthquakes.  
8
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Installation Instructions  
Follow the instructions from the gas supplier.  
Gas Piping  
7.  
The appliance must be disconnected from the gas supply piping system during any pressure testing of  
that system at test pressures in excess of 3.5 kPa.  
The appliance and its gas connections must be leak tested before placing the appliance in operation.  
The inlet gas pressure must be within the range specified. This is for the purposes of input adjustment.  
In order to choose the proper size for the gas line, consult local codes and / or the AS5601.  
Gas Connection  
Gas Pressure  
1) Fit a union to the water heater gas inlet for easy connec-  
tion and removal. The thread diameter is 20 mm.  
THIS DOES NOT INDICATE THE SIZE OF THE GAS  
SUPPLY.  
2) Fit an AGA / NZGA approved isolating gas cock in the  
supply line adjacent to the water heater gas connection.  
3) Ensure that the supply pipe and the gas pressure regula-  
tor (LPG or Natural Gas) has sufficient flow capacity for  
this and other appliances connected to the fitting line.  
4) For LPG appliances ensure that gas cylinders are of suf-  
ficient size. The water heater alone will require 2 x 45 Kg  
capacity cylinders.  
Size the gas line according to total MJ/h  
demand of the building and length from  
the meter or regulator so that the follow-  
ing supply pressures are available even  
at maximum demand refer AS5601:  
Natural Gas Supply Pressure  
Min. 1.13 kPa  
Max. 3.00 kPa  
LP Gas Supply Pressure  
Min. 2.75 kPa  
Max. 3.50 kPa  
Gas Meter  
5) Before connecting the appliance to the gas service,  
purge any debris or air from the gas service.  
6) Check all joints for leaks with an approved leak tester  
after connection.  
Select a gas meter capable of supplying  
the entire MJ/h demand of all gas appli-  
ances in the building.  
Measuring Gas Pressure  
In order to check the gas supply pressure to the unit, a tap is  
provided on the gas inlet. Remove the hex head philips screw from  
the tap, and connect a manometer using a silicon tube.  
In order to check the gas manifold pressure on the gas valve inside  
the unit. The pressure can be checked by removing the hex head  
philips screw and connecting a manometer with a silicon tube.  
Refer to AS 5601 Installation Code or NZS 5261 : 2003 installation code for pipe sizing and details.  
Ensure that the gas pipe size is correct. If undersized the appliance will not operate correctly  
SERVICE CALLS ARE CHARGEABLE FOR UNITS WITH INCORRECT PIPE SIZES OR BLOCKED GAS OR  
WATER FILTERS.  
9
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Installation Instructions  
Installation and service must be performed  
by a qualified plumber.  
Observe all applicable codes.  
8. Water Piping  
This appliance is suitable for potable water applications. Do not use this appliance if any part has been underwater.  
Immediately call a qualified service technician to inspect the appliance and replace any part of the control system and  
gas control which has been under water.  
Piping and components connected to the water heater shall be suitable for use with potable water.  
Toxic chemicals, such as those used for boiler treatment, shall not be introduced into the potable water.  
A water heater used to supply potable water may not be connected to any heating system or components previously  
used with a nonpotable water heating appliance.  
When water is required in one part of the system at a higher temperature than in the rest of the system, means such  
as a mixing valve shall be installed to temper the water to reduce the scald hazard.  
Flush water through the pipe to clean out metal powder, sand and dirt before connecting it.  
Perform the following insulation measures for prevention of freezing.  
Take appropriate heat insulation measures (e.g., wrapping with heat  
insulation materials, using electric heaters) according to the climate of  
the region to prevent the pipe from freezing.  
Make sure that there are no water leaks from the cold and hot water  
supply pipes, then insulate the pipes completely.  
Com pletelyinsulate  
the waterinletand  
outletfittings.  
Do notcoverthe water  
drain plug with insulation  
so thatwaterin the pipe  
can be drained.  
Be sure to also completely insulate the water supply valve and the  
Insulate the water  
cold and hot water connections on the water heater (refer to the figure  
supplyvalve com pletely.  
on the right).  
Do not cover the water drain plug with insulation so that water in the  
pipe can be drained. (Refer to the figure in the right.)  
Use a union coupling for connecting the pipes to reduce the force applied to the piping.  
When feed water pressure is too high, insert a depressurizing valve, or take water hammer prevention measure.  
Avoid using joints as much as possible to keep the piping simple.  
Avoid piping in which an air lock can occur.  
Use approved piping materials.  
If installing the unit on a roof (Above lower-level hot water supply):  
If the unit is installed on a roof to supply water to the levels below, make sure that the water pressure supplied to  
the unit does not drop below 199 kPa. It may be necessary to install a pump system to ensure that the water  
pressure is maintained at this level.  
Check the pressure before putting the unit into operation.  
Failure to supply the proper pressure to the unit may result in noisy operation, shorter lifetime of the unit, and may  
cause the unit to shut down frequently.  
10  
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Installation Instructions  
Supply water piping  
Hot water piping  
Do not use PVC, iron, or any piping which has Do not use lead, PVC, iron or any piping which  
been treated with chromates, boiler seal or other  
chemicals.  
Pipe sizing from the cold water supply should be Keep the pipe lengths to a minimum, and make  
has been treated with chromates, boiler seal or  
other chemicals.  
sized according to local BY LAWS for water supply.  
sure that the pipework is well insulated as correct  
performance of the appliance is dependent on  
properly insulated pipework.  
DO NOT FIT ANY VALVES OR RESTRICTORS  
TO THE OUTLET OF THE WATER HEATER.  
If sludge or foreign matter is present in the water  
supply it is recommended that a separate filter/  
strainer be fitted to the cold water supply line.  
A solar transfer valve must be fitted with all  
solar applications using this appliance. So- DO NOT FIT ANY OBSTRUCTION TO THE  
lar systems fitted without a solar transfer  
valve will void all Bosch Warranty.  
PRESSURE RELIEF LOCATED ON THE HOT  
WATER OUTLET CONNECTION.  
A GATE VALVE OR BALL VALVE must be used Use mixing valves with low water resistance. Use  
on the cold water inlet to the water heater. THIS shower heads with low pressure loss.  
REQUIREMENT IS AN AUSTRALIA WIDE RE- If necessary, use a pump or other means to en-  
QUIREMENT UNDER THE NATIONAL  
PLUMBING CODE.  
STOP TAPS OR COMBINATION STOP TAPS  
AND NON-RETURN VALVES ARE NOT TO  
BE USED.  
In order for the client to use the water heater  
comfortably, 200 to 1000 kPa of pressure is  
needed from the water supply.  
sure that the supply water pressure to the inlet of  
the heater does not fall below 199kPa when the  
maximum amount of water is being demanded.  
Also install a pressure meter on the inlet. If this is  
not done, local boiling will occur inside the water  
heater causing abnormal sounds and decreasing  
the durability of the heat exchanger.  
Be sure to check the water pressure. If the water  
pressure is low, the water heater cannot perform  
to its full capability, and may become a source of  
trouble for the client.  
Drain processing  
Expansion water may drop from the pressure  
relief valve and wet the floor.  
After purging the air from the system using the hot water supply taps, remove the water inlet strainer  
located on the cold water supply inlet connection. Remove any debris from the filter and replace.  
When replacing the filter, do not over-tighten the Oring seal.  
It is recommended that for sanitary fixtures use primarily for the purpose of personal hygiene,  
that a temperature control device be fitted (such as a tempering valve) as per AS3498.  
No pressure reduction valve is required unless the water pressure exceeds 1000 kPa.  
11  
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Installation Instructions  
9. Condensate Piping  
PLEASE FOLLOW LOCAL CODES ABOUT CONDENSATE PIPING.  
This water heater is a high efficiency, fully condensing appliance which produces condensate during  
operation. Therefore, it is necessary to install condensate piping. The water heater incorporates a col-  
lection, neutralization, and removal system which must be properly drained in order to ensure proper  
operation of this appliance.  
The water heater is supplied with a pre-installed condensate neutralization system. No additional neu-  
tralizer is required unless local code dictates otherwise.  
In order to drain the condensate, a 15mm (1/2" BSP) male thread fitting is provided at the base of the  
water heater.  
DO NOT FIT ANY VALVES OR REDUCE THE SIZE OF THIS FITTING OR THE CONDENSATE PIPING  
TO LESS THAN 15mm (1/2" BSP).  
Use plastic pipe, such as PVC, for the drain line. Do not use steel, black iron, or any other material which  
can corrode when placed into contact with water.  
Keep the length of the drain pipe as short as possible.  
Horizontal runs must be sloped 1/50 downwards the drain.  
The end of the drain pipe must not be submerged in water or blocked in any way.  
Be sure to check that condensate is freely flowing from the drain piping after the system has been  
installed. Condensate will begin flowing out of the water heater within 15 minutes after operation has  
started.  
Take measures to prevent the condensate drain lines from freezing (insulation, heat tape, electric heat-  
ers, etc.).  
Condensate piping to floor drain  
DO NOT FIT  
ANY VALVES  
1/2" PVC pipe  
Slope pipe  
The end of the drain pipe  
must have an air gap.  
downwards 1/50.  
Floor drain  
KEEP CLEARANCE  
12  
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Installation Instructions  
Consult a qualified electrician  
for the electrical work.  
Electrical Wiring  
10.  
Do not connect electrical power to the unit until all electrical wiring has been completed.  
Disconnect Power  
This appliance must be electrically earthed in accordance with Electrical Authority Regulations.  
Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper  
and dangerous operation.  
Verify proper operation after servicing.  
Field wiring to be performed at time of appliance installation.  
WARNING  
Electrical Shock Hazard  
Do not turn power on until electrical wiring is finished. Disconnect power before servicing.  
Failure to do so may result in death or serious injury from electrical shock.  
The appliance is equipped with a 1.5m cable with a three pinned earthed plug to be connected to  
240/230VAC at 50 Hz.  
The power consumption may be up to 185W.  
Use an appropriate circuit.  
The appliance requires a 240V in Australia and 230V in New Zealand, 50Hz weatherproof plug  
installed in a protected position adjacent to the appliance.  
If the power cord is damaged and requires replacement, use only an original spare part available  
from the manufacturer.  
Do not disconnect the power supply when not in use. When the power is off, the freeze prevention  
in the water heater will not activate, resulting in possible freezing damage.  
Do not let the power cord contact the gas piping.  
Tie the redundant power cord outside the water heater. Putting the redundant length of cord  
inside the water heater may cause electrical interference and faulty operation.  
Earth  
To prevent electrical shock, always plug power lead into an earthed point.  
CAUTION  
Electrostatic discharge can affect electronic components. Take precautions to prevent electrostatic discharges from  
personnel or hand tools during the water heater installation and servicing to protect products electronic control.  
13  
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Installation Instructions  
Remote Controller  
The remote controller will indicate when the neutralizer unit is in need of replacement by displaying an error code.  
Therefore, the remote controller should always be installed with this water heater in order to prevent an unexpected  
disruption of hot water service.  
Applicable Model  
Bathstop  
Max temperature 75°C *  
Max temperature 50°C  
Max temperature 50°C  
Main controller  
YPRM67XB  
YPRS67XB  
YPRP62XB  
Bathroom controller  
Sub controller  
*
Maximum temperature is controlled by the maximum default temperature set in the water heater.  
The following combination of remote controls will operate the water heater.  
Only Main Controller  
Works  
Only Bathroom Controller  
Only Sub Controller  
Main & Bathroom Controller  
Main, Bathroom & 1 or 2 Sub Controllers  
Main & Sub Controller  
Won't work  
Won't work  
Works  
Works  
Won't work  
Won't work  
Bathroom & Sub Controller  
The bathroom and sub controllers have a maximum temperature setting of 50°C for safety. To ensure compliance with  
Australian Standard AS/NZS3500.4, for sanitary areas, which may be achieved by using a Bosch appliance with a  
delivery temperature greater than 50°C and installed with a tempering valve. In New Zealand, please refer to the New  
Zealand Building Code and all other applicable electrical, gas fitting and plumbing codes.  
Install the remote controller according to the installation guide.  
* The Bosch water heater has been factory set to allow a maximum temperature setting of 55°C.  
To change the maximum temperature setting, connect the temperature selection wire as shown in the  
below diagram. The default temperature is 55°C when the temperature selection wire is not connected.  
<The changing procedure of the maximum temperature setting.>  
1. Turn the water heater off by pressing the ON/OFF button on the remote controller.  
2.Disconnect electrical power to the water heater.  
3. Remove the front cover of the water heater (4 screws).  
4. Connect "WATER TEMPERATURE ADJUSTMENT CONNECTOR" tag  
connector to temperature that wants to switch "75°C (red wire)" or "60°C  
(yellow wire)" tag connector as shown on the right.  
5. Replace the front cover of the water heater (4 screws).  
"60°C" tag "75 °C" tag  
6. Reconnect electrical power to the water heater.  
WATER TEMPERATURE  
ADJUSTMENT CONNECTOR  
Connect "60°C"  
37 - 60°C  
Factory Setting  
37 - 55°C  
Connect "75°C"  
37 - 75°C  
Remote controller  
YPRM67XB  
37 - 50°C  
37 - 50°C  
37 - 50°C  
YPRS67XB  
37 - 50°C  
37 - 50°C  
37 - 50°C  
YPRP62XB  
* Bath Fill temperature setting is 37 - 48°C.  
WARNING  
When changing the temperature, make sure to confirm with the customer that the temperature of  
the hot water will be very high and that there is a risk of scalding.  
It is recommended that for sanitary fixtures use primarily for the purpose of personal hygiene,  
that a temperature control device be fitted (such as a tempering valve) as per AS3498.  
14  
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Installation Instructions  
Connecting Remote Controller Cord to Unit  
Tie the redundant cord outside the water heater. Do not put the extra length inside the water heater.  
The remote controller cord can be extended up to 20m.  
Be sure to hand tighten when screwing to the terminal block. Power tools may cause damage to the  
terminal block.  
Remote controller cord  
Use remote controller cord for any extensions.  
Install according to the National Electrical Code and all applicable local codes.  
1. Check to make sure that the remote controller cord  
has plenty of slack in order to reach the external  
connection terminal block.  
2.Disconnect electrical power to the  
water heater.  
3. Remove the single screw securing the terminal  
block cover and then remove the cover.  
4. Pass the remote controller cord through the wiring  
External connection  
terminal block  
throughway and connect the Y terminals at the end  
Wiring throughway  
of the remote controller cord to the terminal block.  
5. Replace the terminal block cover and install the  
screw previously removed in step 3.  
Remote controller cord  
Power cord  
6. Reconnect electrical power to the water heater.  
15  
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Installation Instructions  
Periodically check the following to ensure proper  
operation of the water heater.  
Maintenance  
11.  
The venting system must be examined periodically by a qualified service technician to check for  
any leaks or corrosion.  
The burner flame must be checked periodically for a proper blue colour and consistency.  
If the flame does not appear normal, the burner may need to be cleaned.  
If the burner needs to be cleaned, it must be performed by a qualified service technician.  
Do not obstruct the flow of combustion and ventilation air.  
See Owner's Guide for further maintenance.  
Warning: There is a scald potential if the output temperature is set too high.  
Should overheating occur, or the gas supply fail to shut off, turn off the manual gas control valve to the appliance.  
Do not use this appliance if any part has been under water. Immediately call a qualified service  
technician to inspect the appliance and to replace any part of the control system and any gas control  
which has been under water.  
Periodically check and clean the filter inside the cold water inlet of the unit.  
The installer should test operate the unit, explain to  
the customer how to use the unit, and give the owner  
this manual before leaving the installation.  
Trial Operation  
12.  
Preparation ........... (1) Open a hot water fixture to confirm that water is available, and then close  
the fixture.  
(2) Open the gas supply valve.  
(3) Turn on the power supply. Using the remote controller, turn on the Power  
On/Off button (the Operation lamp will turn on).  
(1) Open a hot water fixture and confirm that the Burner On lamp comes on, and that hot water is  
being produced. (If necessary, repeat until the air in the gas piping is bled out).  
* White smoke may be noticed from the exhaust vent during cold weather. However, this is not a  
malfunction of the unit.  
* If an 11error code appears on the remote controller, turn the unit off and then back on again,  
and then open a hot water fixture again.  
(2) Change the temperature setting on the remote controller and check that the water temperature changes.  
If the water heater does not operate normally, refer to Troubleshootingin the Owner's Guide.  
* After the trial operation, clean the filter in the cold water inlet.  
CAUTION  
Handling after trial operation  
If the unit will not be used immediately, close off all gas and water shutoff valves, drain all of  
the water out of the unit and the plumbing system to prevent the unit and system from freezing,  
and bleed the gas out of the gas line.  
Freezing is not covered by the warranty.  
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Installation Instructions  
WARNING  
A fire or explosion may result if these instructions are not followed, which may cause lose of  
life, personal injury or property damage.  
Lighting Instructions  
This water heater does not have a pilot. It is equipped with an ignition device that automatically lights  
the burner.  
Do not try to light the burner by hand.  
1. Read the safety information in the installation manual or on the right side of the water heater.  
2. Turn off all electrical power to the unit.  
3. Do not attempt to light the burner by hand.  
4. Turn the gas control manual valve (external to the unit) clockwise to the off position.  
5. Wait five minutes to clear out any gas. If the smell of gas remains, stop, and follow the instructions  
on page 3 of Owner's Guide.  
6. Turn the gas control manual valve counterclockwise to the on position.  
7. Turn on electric power to the unit.  
8. The unit will now operate whenever hot water is called for. If the unit will not operate, follow the  
shutdown instructions and call a service technician.  
Shutdown Instructions  
1. Stop any water demand.  
2. Turn off electric power.  
3. Turn the gas control manual valve clockwise to the off position.  
Should overheating occur, or the gas supply fail to shut off, turn off the manual control valve to the appliance.  
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Installation Instructions  
Dimensions  
13.  
338  
120  
85  
50  
350  
334  
267  
2-6.5 x 13  
OBLONG HOLE  
260  
20  
28  
10  
19  
4- 13  
FLUE COLLAR  
120  
60  
4- 13  
AIR INLET  
AIR INLET  
2- 6.5  
10  
42  
42  
AIR INLET  
3-6.5 x 16.5  
OBLONG HOLE  
135  
COLD WATER INLET  
DRAIN OUTLET  
WATER DRAIN VALVE  
(WATER FILTER)  
WATER DRAIN VALVE  
HOT WATER OUTLET  
WIRING THROUGHWAYS  
GAS INLET  
PRESSURE RELIEF VALVE  
(WATER DRAIN VALVE)  
(VIEW FROM TOP)  
279  
243  
136  
100  
60  
HEIGHT OF EACH FITTING  
FROM BOTTOM OF CASE  
HOT WATER  
OUTLET (R3/4)  
GAS INLET (R3/4)  
HOT WATER OUTLET  
44  
57  
49  
28  
COLD WATER INLET  
GAS INLET  
DRAIN OUTLET  
DRAIN OUTLET (R1/2)  
COLD WATER INLET (R3/4)  
WIRING THROUGHWAYS  
18  
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