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A
TER PIPING DIAGRAMS
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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. Howeve
r,
local codes shall govern their usage.
W
ARNING:
THIS DRA
WING SHOWS SUGGESTED
PIPING CONFIGURA
TION
AND OTHER DEVICES;
CHECK WITH LOCAL
CODES
AND ORDINANCES
FOR ADDITIONAL
REQUIREMENTS.
ANY
MA
TERIAL, COMPONENT
OR VENDOR CHANGE
MUST
HA
VE PRIOR
APPROV
AL
BY
THE
APPLICABLE
PRODUCT
ENGINEERING DEP
AR
TMENT
.
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
T
A
NK TEMPERA
TURE
CONTROL
EXPANSION
TANK
LEGEND
TEMPERA
TURE &
PRESSURE RELIEF V
A
L
V
E
PRESSURE RELIEF V
A
L
V
E
CIRCULA
TING PUMP
TEMPERA
TURE CONTRO
L
PROBE
DRAIN
FULL
POR
T
BALL
V
A
L
V
E
TEMPERA
T
URE GAGE
W
A
TER FLOW SWITCH
CHECK V
A
L
V
E
Summary of Contents for 500
Page 66: ...66 WIRING DIAGRAM Figure 58 ...
