Water Piping Diagrams
Before installation of water piping review the following:
1.See Mixing Valves on page 68.
2.See Dishwashing Machines on page 68.
3.See
4.See Closed Systems and Thermal Expansion on page 68
5.See Water Line Connections on page 68.
6.If a pump is being installed between a water heater and storage tank or on a building recirculation loop wire according to Figure 64 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 64 or Figure 65 on page 68.
ONE WATER HEATER, TWO TEMPERATURE WITH HIGH TEMPERAURE LOOP RECIRCULATION WITH BUILDING RECIRCULATION
LEGEND
TEMPERATURE & PRESSURE | FULL PORT BALL VALVE |
RELIEF VALVE |
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| MIXING VALVE |
68
WARNING: THIS DRAWING SHOWS SUGGESTED PIPING CONFIGURATION AND OTHER DEVICES; CHECK WITH LOCAL CODES AND ORDINANCES FOR ADDITIONAL REQUIREMENTS.
LINE TEMPERATURE
CONTROL
TEMPERED WATER
RETURN
COLD WATER
SUPPLY
TEMPERED
WATER
TO FIXTURES
HOT WATER
OUTLET
12” TO 15”
MINIMUMHOT
MIXING VALVE
PRESSURE RELIEF VALVE |
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CIRCULATING PUMP |
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| CHECK VALVE |
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TANK OR LINE TEMPERATURE |
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| TEMPERATURE GAGE |
CONTROL |
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| WATER FLOW SWITCH |
DRAIN |
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PIPE T&P TO
OPEN DRAIN
HOT WATER | COLD |
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RETURN |
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| LINE TEMPERATURE |
| CONTROL |
EXPANSION
TANK