State Water Heaters GP650 HTPDT, Service Handbook

Page: 25 / 72

23
6HUYLFLQJVKRXOGRQO\EHSHUIRUPHGE\D4XDOL¿HG6HUYLFH$JHQW
GAS VALVE
7KH9ROW*DV9DOYHRQWKHVHZDWHUKHDWHUVLV'&YROWDJHYDOYH7KH&&%VHQGV9$&WRWKHYDOYHDQG
WKH$&YROWDJHLVUHFWL¿HGLQWRD'&YROWDJHE\HOHFWURQLFVFRQWDLQHGLQVLGHWKHSOXJHQGRIWKH9ROW*DV
9DOYHZLULQJKDUQHVVVHH)LJXUHEHORZ
VENTURI
24 VOLT GAS VALVE ASSEMBLY TOP VIEW
24 VAC FROM THE J6 SOCKET
ON THE CCB CONNECTS TO
THESE TWO SPADE TERMINALS
AT THE END OF THE 24 VOLT
GAS VALVE WIRING HARNESS.
SUPPLY GAS CONNECTION
24 VOLT GAS VALVE
PLUG RETAINING
SCREW
24 VOLT GAS VALVE
WIRING HARNESS
24 VOLT GAS VALVE WIRING
HARNESS PLUG. 24 VAC
FROM CCB IS RECTIFIED TO
24 VDC BY ELECTRONICS
INSIDE THE PLUG END.
COMBUSTION
BLOWER
)LJXUH
GAS VALVE VOLTAGE TESTS
1.
&KHFNIRU9$&VXSSOLHGWRWKH9ROW*DV9DOYHDWSLQVDQGRIWKH-3OXJRQWKH&&%VHH
&&%&RYHU5HPRYDO$QG5HSODFHPHQWRQSDJHDQG&&%&LUFXLW%RDUG/D\RXWRQSDJH8VLQJDQ
$& YROW PHWHU LQVHUW WKH WZR WHVW SUREHV LQWR SLQV DQG RI WKH - 3OXJ RQ WKH &&% GXULQJ WKH
,JQLWLRQ9HUL¿FHDWLQJRSHUDWLQJVWDWHVVHH)LJXUHEHORZ9$&VKRXOGEHSUHVHQW7KH
DQLPDWHGJDVYDOYH6WDWXV,FRQLVGLVSOD\HGRQWKH&RQWURO6\VWHP/&'GXULQJWKHVHRSHUDWLQJVWDWHV
6HH2SHUDWLQJ6WDWHVRQSDJHDQG'HVNWRS6FUHHQRQSDJH
2.
&KHFNIRU9'&DWWKHSOXJHQGRIWKH9ROW*DV9DOYHZLULQJKDUQHVVGXULQJWKH,JQLWLRQ9HUL¿FDWLRQ
RSHUDWLQJVWDWH/RRVHQWKHUHWDLQLQJVFUHZIRUWKH9ROW*DV9DOYHZLULQJKDUQHVVSOXJDQGGLVFRQQHFW
WKHSOXJVHH)LJXUHDERYH/D\WKHSOXJHQGXSVLGHGRZQRQDÀDWVXUIDFH8VLQJDQ'&YROWPHWHU
LQVHUWWKHWZRWHVWSUREHVLQWRWKHWZRRXWVLGHSOXJVRFNHWVVHH)LJXUHEHORZ9'&VKRXOGEH
SUHVHQW
AC VOLTAGE TEST DC VOLTAGE TEST
)LJXUH