L7224A,C; L7248A,C,L OIL AND ELECTRIC BOILER ELECTRONIC AQUASTAT® CONTROLLERS
68-0281—16 8
Fig. 8. L7224A,C; L7248L single heat zone with indirect water tank and circulators. Optional Outdoor Reset Module.
C1
B1
ZC
L2
LINE
C2
ZR
L1
B2
T
T3
2
1
M32023A
L1
(HOT)
SENSOR
LINE
VOLTAGE
CIRCULATOR
LINE
VOLTAGE
OIL BURNER
RELAY
L2
OUTDOOR RESET MODULE IS OPTIONAL. W8735S1000 WIRED OUTDOOR
RESET MODULE SHOWN.
FOR BEST PERFORMANCE SET DUU=”ON”.
1
1 2 3 OT OT
C7089U
OUTDOOR
SENSOR
1
W8735Y1000 OR
W8735S1000
INDIRECT
TANK
CIRCULATOR
LINE VOLTAGE INDIRECT
TANK AQUASTAT
L1
(HOT)
L2
2
2