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CF-CH(E)-WRG-01
WIRING BOX CONNECTIONS - WIRING DIAGRAM A
MODELS 399,999 - 750,000 BTU / HR
NC
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SCHEMATIC DIAGRAM
MODELS 399,999 - 750,000 BTU / HR
2 of 8
WIRING BOX CONNECTIONS - WIRING DIAGRAM B
MODELS 399,999 - 750,000 BTU / HR
3 of 8
WIRING BOX CONNECTIONS - WIRING DIAGRAM B (CONTINUED)
MODELS 399,999 - 750,000 BTU / HR
4 of 8
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1
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(3) SCHEMATIC IS WIRING DIAGRAM, REFER TO ACTUAL COMPONENTS FOR EXACT TERMINAL LOCATIONS.
DOTTED LINE INDICATES OPTIONAL
EQUIPMENT
ITEM INDICATES
CLOSED END SPLICE
JUNCTION POINT(ELECTRICALLY SAME)
T=TANY=YELLOWBR=BROWNG=GREENGY=GRAY
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HD#1
HD#2
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PR
A1 B1A2 A3 B2 B3
CONTINUOUSLYMONITORED
INTERMITTENTLY MONITORED
FIELD INSTALLED SAFETY DEVICES
NOTE: SHOWN WITH SHORTING BARS REMOVED AND ATTACHED DEVICES IN NON-ALARM STATE.
CONTINUOUS INTERMITTENT
COM COMFAIL
OK OK
FAIL
HIGH/LOW GAS, AUX. HI-LIMITAUX. LIMITS , EXT. FLOW SWITCH
EXAMPLE DEVICES:
BK
10
9
8
1
34567
2
2
9
4 7
5
6
4
23
4
23
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STAGE #3
STAGE #2
STAGE #4
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12
6543
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PRPR
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PR/BK
PR
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BL/BK
GY/W
GY/WGY/W
SYSTEM/TANKO.A.
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FLAME CURRENT TEST PINS
RT1RT2
BKW
WBK
GY GY
BR/W
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PUMP OPTIONAL ON BOILERS
BL
WARNING: THIS HEATER MAY BE CONNECTED TO ONE OR MORE BRANCH CIRCUITS. TO PREVENT ELECTRICAL SHOCK,ENSURE ALL BRANCH CIRCUITS ARE DE-ENERGIZED BEFORE ATTEMPTING TO SERVICE THIS EQUIPMENT.
OPTIONAL BOILER ONLY
INLET
R/BK
R
R/W
2
RESET OVERRIDE
3HEATDEM#2
R/O
FIELD INSTALL AS NECESSARY
CN.O.
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STRIP REQUIRE THE REMOVAL OF SOME OF THE SHORTING BARS FROM THE TERMINAL STRIP.
NO TE : SOME STAGES HAVE MORE THAN ONE GAS VALVES .
RR
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1
3
8
BL/BK
5
1
5
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Y
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FFR
P
PR AL Y
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G
PR
PR
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~~~~~~~~
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C
C
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NO
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C
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NO
CNO
CNO
C
NO
C
NO
W
TO POWER SOURCE
RESET
O
BL/BK
BL
YPR
PR
T
SCHEMATIC DIAGRAM
MODELS 990,000 - 2,070,000 BTU / HR
5 of 8
J3
54
61
23
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J1
J2
321
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WIRING BOX CONNECTIONS - WIRING DIAGRAM A
MODELS 990,000 - 2,070,000 BTU / HR
6 of 8
WIRING BOX CONNECTIONS - WIRING DIAGRAM B
MODELS 990,000 - 2,070,000 BTU / HR
7 of 8
WIRING BOX CONNECTIONS - WIRING DIAGRAM B (CONTINUED)
MODELS 990,000 - 2,070,000 BTU / HR
©-4/09 Printed in U.S.A.8 of 8
