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A.O. Smith
Water Heater
GCV Series
A.O. Smith GCV Series User Manual
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44
ALL TECHNICAL
AND W
ARRANTY QUESTIONS
SHOULD BE DIRECTED T
O THE LOCAL
DEALER FROM WHOM THE W
A
TER HEA
TER WAS PURCHASED. IF
YOU
ARE UNSUCCESSFUL, CONT
ACT
A
O SMITH W
A
TER HEA
TERS RESIDENTIAL
TECHNICAL
ASSIST
ANCE
A
T 1-800-527-1953 OR WWW
.HOTWA
TER.COM.
43
Table of Contents
Default Chapter
7
Table of Contents
7
Basic Installation
8
Normal Operation
10
Draining and Filling the Water Heater
17
Draining the Water Heater
17
Filling the Water Heater
17
Checking the Gas Supply for Pressure
18
Checking for Sufficient Combustion Air or Venting Issues
18
Combustion Air Test
18
Draft Test
19
External Inspection & Cleaning of the Base Ring Filter
19
Cleaning the Combustion Chamber and Flame Arrestor
19
Testing the Thermocouple and Gas Control Valve/Thermostat
20
Thermocouple Output Test
20
Gas Control Valve/Thermostat (Thermal Switch Models)
20
Replacing the Thermocouple and Gas Control Valve/Thermostat
21
Removing the Manifold/Burner Assembly
21
Removing the Burner from the Manifold/Burner Assembly
21
Replacing the Thermocouple
21
Replacing the Manifold/Burner Assembly
22
Removing and Replacing the Gas Control Valve/Thermostat
23
Adjusting the Temperature on the Gas Control Valve/Thermostat
24
Gas Water Heater Sizing Guide
25
Leakage Checkpoints
25
Technical Service Bulletins
26
Water Hammer
27
Mineral Buildup
28
Mineral Build-Up
28
Aluminum Hydroxide
29
Condensation
30
Discolored Water
31
Smelly Water
32
Chlorination Procedure
33
Not Enough Hot Water
34
Thermal Expansion
35
Thermal Expansion
36
Leaking Temperature and Pressure Relief Valve
37
Insulation Blanket
38
Insulation Blankets
38
General Information
39
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A.O. Smith GCV Series Specifications
General
Vent Type
Atmospheric Vent
Type
Gas
Dimensions
Varies by model
Warranty
6 years on tank and parts
Capacity
40 to 50 gallons
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