43
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating o f any component in the system.
3. Service valves are shown f or servicing unit. However, local codes shall govern their usage.
MULTI FLUE (2 UNITS) WITH BOOSTER TWO TEMPERATURE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
FULL PORT BALL VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
CHECK VALVE
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
EXPANSION
TANK
BOOSTED
WATER
OUTLET
TYPICAL
BOOSTER
HEATER
PRE-HEATER
PRE-HEATER
MUST BE IDENTICAL HEATERS
FINISHED FLOOR
COLD WATER
SUPPLY
HOT OUTLET
AT STORED
TEMPERATURE
BOOSTER RETURN
(IF USED)
HOT WATER
RETURN
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN