American Water Heater Commercial Gas NonDampered Water Heater CG3275T75 CG32100T77 User Manual

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NOTES:
1. Preferred piping  diagram.
2.  The temperature and pressure relief valve setting shall not exceed press\
ure rating of any component in the system.
3.  Service valves are shown for servicing unit. However , local codes shall govern their usage.
4.  The  Tank  Temperature Control should be wired to and control the pump between the w\
ater heater(s) and the storage tank(s).5.  The water heater ’s  operating thermostat should be set 5 degrees F higher than the T ank Temperature Control.SINGLE F LUE  - (1 UNIT) WITH MIXING  VAL VE  TWO  TEMPERA TURE
LEGEND
TEMPERATURE & PRESSURE
RELIEF V ALVEPRESSURE RELIEF V ALVECIRCULA TING PUMPTA NK  TEMPERA TURE CONTRO LDRAIN
FULL POR T BALL  VALVETEMPERA TURE GAGEWATER FLOW SWITCH
CHECK V
ALVE
WARNING:  THIS DRA WING SHOWS SUGGESTEDPIPING CONFIGURA TION AND OTHER DEVICES;
CHECK WITH LOCAL  CODES AND ORDINANCES
FOR  ADDITIONAL  REQUIREMENTS.
HOT WATER
RETURN MINIMUM
10 ´´ to  12´´
HOT WATER OUTLET
TEMPERED WATER
RETURN TEMPERED
WATER
OUTLET
COLD WATER
SUPPLY
LINE
TEMPERATURE CONTROL COLD
HOT
EXPANSION
TANK
PIPE T&P TO
OPEN DRAIN 
						

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NOTES:
1 .  Pref erred  piping  diagram.
2 .  The t emperat ure and  pressure  relief valve  setting  shall not exceed  pressure  rating  of  any  component  in the  syst em.
3 .  Servic e v alv es  are s hown f or serv icing  unit. However , local  codes  shall govern t heir usage.
4 .  The  Tank  Temperat ure Cont rol should  be wired t o and  control the pump  between t he wat er heat er(s)  and the storage t ank(s).SINGLE F LUE  - (2 UNITS)
LEGEND
TEMPERA TURE & PRESSURE
RELIEF V ALVEPRESSURE RELIEF V ALVECIRCULA TING PUMPTA NK  TEMPER AT URE CO NTR O LDRAIN
FULL  PORT BALL  VAL VETEMPERA TURE GAGEW ATER FLOW SWITCH
CHECK V
ALVE
W ARNING:  THIS DRAW ING SHOWS SUGGESTEDPIPING CONFIGURA TION  AND OTHER DEVICES;
CHECK WITH LOCAL  CODES AND ORDINANCES
FOR  ADDITIONA L REQUIREMENTS.
FINISHED
FLOOR
HOT
 W ATER 
T O  FIXTURES
HOTCOL H
D OT HOT
 W ATER  RET URN
F R OM FIX TURES
COLD
COLD WATER
SUPPLY
EXPANSION
TANKPIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN 
						

							33
NOTES:
1 .  Pref erred  piping  diagram.
2 .  The t emperat ure and  pressure  relief valve  setting  shall not exceed  pressure  rating  of  any  component  in the  syst em.
3 .  Servic e v alv es  are s hown f or serv icing  unit. However , local  codes  shall govern t heir usage.SINGLE F LUE  - (2 UNITS)  TWO TEMPERA TURE ONE PRE-HEA TER/ONE BOOSTER HEA TER
LEGEND
TEMPERATURE & PRESSURE
RELIEF V ALVEPRESSURE RELIEF V ALVECIRCULA TING PUMPTA NK  TEMPER AT URE CO NTR O LDRAIN
FULL  PORT BALL  VAL VETEMPERA TURE GAGEW ATER FLOW SWITCH
CHECK V
ALVE
W ARNING:  THIS DRAW ING SHOWS SUGGESTEDPIPING CONFIGURA TION  AND OTHER DEVICES;
CHECK WITH LOCAL  CODES AND ORDINANCES
FOR  ADDITIONA L REQUIREMENTS.
FINISHED
FLOORHOT  WATER
T O FIXTURES
HOT WATER  RETURN
HOT HOT
COLD
HIGH
TEMPERATURE RETURN
HIGH
TEMPERATURE OUTLET
COLD WATER
SUPPLY
EXPANSION
TANK
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
BOOSTERHEATER 
						

							34
notes 
						

							35
notes 
						

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