Installation & Operation Manual
6 System piping (continued)
Figure
180° HOT WATER SUPPLY
140° HOT WATER SUPPLY
LOW
TEMPERATURE
BUILDING
RETURN
COLD 
WATER
SUPPLY
FLOW CHECK
VALVE (TYPICAL)
THERMOMETER |
|
|
|
|
(TYPICAL) | UNION | BALL VALVE |
| HIGH TEMPERATURE |
|
| |||
MIXING | (TYPICAL) | (TYPICAL) |
| BUILDING RETURN |
|
|
|
| |
VALVE | TEMPERATURE |
|
| |
| & PRESSURE |
|
| |
| RELIEF VALVE | WATER |
| |
| (TYPICAL) |
| ||
| HEATER |
| ||
|
|
|
| |
|
| CIRCULATOR |
| |
STORAGE |
|
|
|
|
TANK |
|
|
|
|
EXPANSION |
|
TANK | FLOW |
| |
| SWITCH |
| WATER |
DRAIN | HEATER |
| (RECOMMENDED) |
CAUTION
The piping will not support the weight of the water heater circulator pump. Do not attempt to support the weight of the water heater circulator pump with the piping or its accessories. Refer to the pump manufacturer’s installation instructions. Failure to comply could result in severe personal injury, death, or substantial property damage.
NOTICE
Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.
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