Honeywell L7224U1002 Guide d'installation Page 12

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L7224U OIL AND ELECTRIC BOILER ELECTRONIC AQUASTAT
®
CONTROLLER
69-1720EFS—07 12
Fig. 10. L7224U multizone system with circulator connections.
C1
B1
ZC
L2
LINE
C2
ZR
L1
B2
T
T3
2
1
M17777D
SENSOR
LINE
VOLTAGE
CIRCULATOR
LINE
VOLTAGE
OIL BURNER
RELAY
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
1
2
CONTROL CASE MUST BE CONNECTED TO EARTH GROUND.
USE GROUNDING SCREW PROVIDED.
2
L1
(HOT) L2
1
2
1
4
3
5
6
ZONE 2
LOW VOLTAGE
THERMOSTAT
LOW
VOLTAGE
THERMOSTAT
R845A RELAY ZONE 2
ZONE 2
CIRCULATOR
TO ADDITIONAL R845A
RELAYS FOR OTHER ZONES
L7224
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