State Water Heaters GPO 86-199 Installation & Operation Instruction page 15

DANGER:
TEMPERATURE SETTING SHOULD NOT EXCEED SAFE
TEMPERATURES AT FIXTURES. SEE WATER TEMPERATURE
CONTROL WARNING ON PAGE 10. IF HIGHER PREHEAT
TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE
BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT
WATER SUPPLIED TO FIXTURES.
NOTE: IF TEMPERED WATER IS RECIRCULATED
RETURN LINE SHOULD BE CONNECTED
AT POINT "A"
* PIPE TO OPEN DRAIN
INSTALL IN ACCORDANCE WITH LOCAL CODES
WIRING DIAGRAM FOR TEMPERED WATER LOOP
SINGLE TEMPERATURE OR BOOSTER
TWO TEMPERATURE - ONE HEATER HIGH TEMPERATURE STORAGE
WITH OR WITH OUT RECIRCULATION
RETURN LINE FROM 180°F (82.2°C)
CIRCULATING LOOP (IF USED)
(IF USED)
WIRING DIAGRAM FOR 180°F (82.2°C) LOOP (IF USED)
15
INSET B
VACUUM RELIEF VALVE
INSTALL PER LOCAL CODES.
INSET A
INSTALL THERMAL EXPANSION TANK
IN COLD WATER SUPPLY LINE, IF
CHECK VALVE OR PRESSURE
REDUCING VALVE IS USED IN
SUPPLY.