State GPG/GPV-540A - Manual (Page 17)

17
TwO TEMPErATUrE - ONE HEATEr HiGH TEMPErATUrE
wiTH rECirCULATiON OF SANiTiZiNG LOOP
CAUTION: IF BUILDING COLD WATER SUPPLY HAS A BACKFLOW
PREVENTER, CHECK VALVE OR WATER METER WITH CHECK VALVE,
PROVISIONS FOR THERMAL EXPANSION OF WATER IN THE HOT WATER
SYSTEM MUST BE PROVIDED.
DANGEr
TEMPErATUrE SETTiNG SHOULD NOT EXCEED SAFE TEMPErATUrE
AT FiXTUrES. SEE wATEr TEMPErATUrE CONTrOL wArNiNG ON
PAGE 23. iF HiGHEr PrEHEAT TEMPErATUrES ArE NECESSAry TO
OBTAiN ADEQUATE BOOSTEr OUTPUT, ADD AN ANTi-SCALD VALVE
FOr HOT wATEr SUPPLiED TO FiXTUrES.
*PIPE TO OPEN DRAIN
INSTALL IN ACCORDANCE WITH LOCAL CODES
NOTE 1: TOGGLE SWITCH CONTROLS 180° WATER CIRCULATION.
INSTALL ON OR CLOSE TO DISHWASHING MACHINE.
TOGGLE SWITCH MUST BE CLOSED (ON) DURING THE
RINSE OPERATION AND OPEN (OFF) WHEN DISHWASHER
IS NOT OPERATING OR WHEN ON LONG STANDBY.
NOTE 2: INSTALL LINE TEMPERATURE CONTROL IN AN UNINSULATED
TEE BEYOND THE DISHWASHING MACHINE TAKEOFF IN THE
SANITIZING LOOP. CONTROL SHOULD BE SET AT 185°F.
NOTE 3: ADJUST PLUG COCK SO THE SANITIZING LOOP FLOW
RATE DOES NOT CAUSE UNNECESSARY TURBULENCE
IN THE TANK.
NOTE 4: IF TEMPERED WATER IS RECIRCULATED, RETURN LINE
SHOULD BE CONNECTED AT POINT “’A”.