resideo Aquastat L7224U Manual Del Usuario página 12

L7224U OIL AND ELECTRIC BOILER ELECTRONIC AQUASTAT
69-1720EFS—13
TO ADDITIONAL R845A
RELAYS FOR OTHER ZONES
1
L1
(HOT) L2
L7224
SENSOR
ZR
L1
LINE
VOLTAGE
L2
CIRCULATOR
C2
B2
C1
LINE
VOLTAGE
B1
OIL BURNER
RELAY
ZC
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2 CONTROL CASE MUST BE CONNECTED TO EARTH GROUND.
USE GROUNDING SCREW PROVIDED.
Fig. 10. L7224U multizone system with circulator connections.
®
CONTROLLER
CIRCULATOR
R845A RELAY ZONE 2
6
5
3
4
1
2
ZONE 2
LOW VOLTAGE
THERMOSTAT
LOW
VOLTAGE
THERMOSTAT
2
T
T 3
2
1
12
ZONE 2
M17777D