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21
FIGURE 19: WIRING DIAGRAM, SINGLE HEATING ZONE ONLY
FIGURE 20: WIRING DIAGRAM, CIRCULATOR ZONE WIRING USING HONEYWELL R845A’s
(FACTORY BOILER WIRING NOT SHOWN - SEE FIGURE 19)
20
L1
IN TERRUPTED
INTERMITTENT
BURNER MOTOR
LI M I T
VA LV E
L2
H ONEYWEL L
L8148 OR L8124
AQUASTAT RELAY
NOTE:
1) BURNER WIRING SHOWN IS FOR BECKETT
A
FG BURNERS. CONSULT BURNER INSTRUCTION
MANUAL FOR OTHER BURNERS
2) AQUASTAT PICTURED IS L8148. TERMINAL 3
AND JUMPER FROM L1 TO 3 ARE NOT PRESENT
ON L8124. L8124 HAS TWO TERMINALS,
MARKED ZC AND ZR, WHICH ARE NOT USED.
CAD
CELL