User Guide
Table Of Contents
- Safe Installation, Use and Service
- APPROVALS
- General safety INFORMATION
- Introduction
- Installation Considerations
- Installation requirements
- Gas Supply Systems
- Gas Pressure Requirements
- Supply Gas Regulator
- Mixing Valves
- Water Piping
- Temperature-Pressure Relief Valve
- Filling the Water Heater
- Air Requirements
- Unconfined Space
- Confined Space
- Fresh Air Openings For Confined Spaces
- Outdoor Air Through Two Openings
- Outdoor Air Through One Opening
- Outdoor Air Through Two Horizontal Ducts
- Outdoor Air Through Two Vertical Ducts
- Air From Other Indoor Spaces
- Venting
- Gas Piping
- Sediment Traps
- Temperature Regulation
- For Your Information
- Periodic Maintenance
- Venting System Inspection
- Burner Inspection
- Burner Cleaning
- Air Shutter Adjustment
- Housekeeping
- Anode Rod Inspection
- Temperature-Pressure Relief Valve Test
- Periodic Removal of Lime Deposits From Tank Type Commercial Water Heaters
- Deliming Solvents
- Tank Cleanout Procedure
- Deliming Using Flo-Jug Method
- Draining and Flushing
- Service
- Leakage Test Points
- Water Piping Diagrams
- Commercial Water Heater Limited Warranty
35
REPLACING THE GAS CONTROL VALVE/THERMOSTAT:
1. To replace the gas control valve/thermostat, reassemble
in reverse order. When replacing the gas control valve/
thermostat, thread a 4” section of gas pipe into the
inlet and use it to turn the gas control valve/thermostat
(clockwise). DO NOT OVER TIGHTEN; damage may
result.
2. Be sure to use approved Teon® tape or pipe joint
compound on the gas piping connections and tting on
the back of the gas control valve that screws into the
tank.
3. Be sure to remove the pilot ferrule nut from the new gas
control valve/thermostat.
4. Turn the main gas supply on and check the gas supply
connections for leaks. Correct any leak found. Next,
light the pilot and main burner, then check the manifold
tube and pilot tube connections for leaks. Correct
any leak found. Use an approved noncorrosive leak
detection solution. If such a solution is not available, use
a mixture of hand dish washing soap and water (one
part soap to 15 parts water) or childrens’ soap bubble
solution. Bubbles forming indicate a leak.
Be sure tank is completely lled with water before lighting
and activating the water heater. Follow the Lighting
Instructions on the front of the water heater.
TEFLON® is a registered trademark of E.I. Du Pont De
Nemours and Company.