Table of Contents
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Index
Index
1
Warning
2
Appliance details
2.1
Features
2.2
GWH-635-ES Specifications (Technical data)
2.3
Dimensions and Minimum installation clearances
2.4
General rules to follow for safe operation
2.5
Proper location for installing your heater
2.6
Clearances
2.7
Mounting installation
2.8
Combustion air requirements
2.9
Venting
2.9.1
Venting options
2.10
Gas piping & connections
2.11
Gas line sizing
2.12
Measuring gas pressure
2.13
Water connections
2.14
Electrical connections
2.15
Operating instructions
2.16
For your safety read before operating your water heater 20
2.17
Lighting and operating instructions
3
Operation instructions
3.1
Power
3.2
Temperature selection
3.3
New remote control registration
3.4
Operation
3.5
Reset button
3.6
Program button
3.7
Locked condition
4
Maintenance and service
5
Troubleshooting
6
Electrical diagram
7
GWH-635-ES Functional scheme
8
Interior components diagram and parts list
8.1
Interior components
8.2
Components diagram
8.3
Parts list
9
Special adjustment for measuring and adjusting CO
levels
9.1
Adjusting the unit
9.1.1
CO
measuring port
2
9.1.2
Selecting adjustment mode
10
Protecting the environment
11
Fifteen Year Limited Warranty
2
1
Warning
2
Warning: If the information in this
4
manual is not followed exactly. A fire or
4
explosion may result causing property
4
damage, personal injury or death.
6
7
7
Warning:
8
adjustment,
8
8
maintenance can cause injury or
9
property damage. Refer to this manual.
12
For assistance or additional information
15
consult a qualified installer, service
17
17
agency or the gas supplier.
18
Upon completion of the installation,
20
these instructions should be handed to
20
the user of the appliance for future
reference.
20
Featuring
22
Electronic Ignition and Power Venting
22
22
For your safety
24
24
Do not store or use gasoline or other flammable,
24
combustible or corrosive vapors and liquids in the
24
vicinity of this or any other appliance.
25
Warning: Carefully plan where you
25
install the heater. Correct combustion
air supply and flue pipe installation are
very important. If a gas appliance is not
25
installed correctly, fatal accidents can
result from lack of air, carbon monoxide
28
poisoning or fire.
29
Warning: Exhaust gas must be vented
to outside using proper vent material
30
suitable for category III vent systems
30
and temperatures up to 480°F. Vent
31
and combustion air connector piping
32
must be sealed gas-tight to prevent
possibility of flue gas spillage, carbon
2
monoxide emissions and risk of fire,
33
resulting in severe personal injury or
33
death.
33
33
Warning: Place the heater in a location
35
where water leaks will do NO DAMAGE
to adjacent areas or lower floors.
36
Improper
installation,
alteration,
service
or
6 720 607 072 (16 January)
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