Install Instructions
Table Of Contents
- Safe Installation, Use and Service
- APPROVALS
- General Safety Information
- Introduction
- Features And Components
- Installation Considerations
- Installation Requirements
- Gas Supply Systems
- Supply Gas Regulator
- Power Supply
- Mixing Valves
- Dishwashing Machines
- Closed Water Systems
- Thermal Expansion
- Temperature-Pressure Relief Valve
- Condensate Drain
- Combustible Material Storage
- Contaminated Air
- 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
- Installation Requirements - Commonwealth of Massachusetts
- Venting Installation
- General Venting Information
- General Venting Instructions
- Intake Air Connection
- Venting Requirements
- Venting Installation Sequence
- Power Vent Installation
- Direct Vent Installation
- Vertical Termination Installation
- Sidewall Termination Installation
- Polypropylene Installations
- Al29-4C® Vent Installations
- Concentric Termination Installation
- 4 Inch Concentric Termination Installation
- Low Profile Vent installation
- Venting Arrangements
- Termination Clearances Sidewall Power Vent
- Termination Clearances Sidewall Direct Vent
- Water Heater Installation
- Temperature Regulation
- Control System Operation
- Start Up
- Troubleshooting
- Maintenance
- Diagrams
- notes
- notes
- notes
- Service Inquiries:
- Commercial
- Water Heater
- Limited Warranty
75
4. See Closed Systems and Thermal Expansion on page 14.
5. See Water Line Connections on page 43.
6. If a pump is being installed between a water heater and storage tank or on a building
recirculation loop wire according to Figure 68 on page 68.
7. If a pump is being installed in a recirculation loop between the water heater and a
commercial dishwasher wire according to Figure 68 or Figure 69 on page 68.
WATER PIPING DIAGRAMS
Before installation of water piping review the following:
1. See Mixing Valves on page 14.
2. See Dishwashing Machines on page 14.
3. See Temperature-Pressure Relief Valve on page 15.
FOUR WATER HEATERS, SINGLE TEMPERATURE
WITH BUILDING RECIRCULATION
NOTES:
1. Preferred piping method.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
ANY MATERIAL, COMPONENT OR VENDOR CHANGE
MUST HAVE PRIOR APPROVAL BY THE APPLICABLE
PRODUCT ENGINEERING DEPARTMENT.
FINISHED
FLOOR
HOT WATER
RETURN
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
HOT WATER
TO FIXTURES
COLD WATER
SUPPLY
TANK TEMPERAT URE
CONTROL
EXPANSION
TANK
LEGEND
TEMPERATURE &
PRESSURE RELIEF VALVE
PRESSURE RELIEF VALVE
CIRCULATING PUMP
TEMPERATURE CONTROL
PROBE
DRAIN
FULL PORT BALL VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
CHECK VALVE