State SSE-120 - Manual (Page 38)

38
NOTES: 1.
Preferred piping diagram.
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. However
, local codes shall govern their usage.
4.
The
Tank
Temperature Control should be wired to and control the pump betw
een the water heater(s) and the storage tank(s).
5.
The water heater
’s operating thermostat should be set 5 degrees F higher than th
e
Tank
Temperature Control.
COMMER
CIAL ELECTRIC
- (2 UNITS) WITH HORIZONT
AL
ST
ORAGE
TANK
LEGEND
TEMPER
AT
URE & PRESSURE
RELIEF
VA
LV
E
PRESSURE RELIEF
VA
LV
E
CIRCULA
TING PUMP
TA
NK
TEMPER
AT
URE CONTRO
L
DRAIN
FULL
PO
RT
BAL
L
VA
LV
E
TEMPER
AT
URE GAGE
WA
TER FLOW SWITC
H
CHECK
VA
LV
E
W
ARNING:
THIS DR
AW
ING SHOWS SUGGESTED
PIPING CONFIGUR
AT
ION
AND OTHER DEVICES;
CHECK WITH LOCAL
CODES
AND ORDINANCES
FOR
ADDITIONA
L
REQUIREMENTS
.
FINISHED FLOO
R
HO
T
WA
TER
TO
FIXTURE
S
ALTERNATE LOCATION
EXPANSIO
N
TAN
K HOT WATE
R
RETURN COLD WATE
R
SUPPLY
FUSED
DISCONNEC
T
SWITCH
PIPE T&P TO OPEN DRAIN
FUSED
DISCONNEC
T
SWITCH
PIPE T&P TO OPEN DRAIN