Honeywell Aquastat L8124B Product Data page 12

L8124A,B,C,E,G,L,M AQUASTAT® RELAYS
LOW VOLTAGE
THERMOSTAT
T
T
1K
W R
LOW LIMIT/
CIRCULATOR
1K2
Fig. 19. L8124A,C multizone system with circulator connections and internal schematic.
T
TV
1K
W
LOW LIMIT/
CIRCULATOR
Fig. 20. L8124E multizone system with circulator connections and internal schematic.
60-2061—10
(HOT)
2
L8124A,C
G
1
2
B
1K1
ZR
ZC
B
HIGH
3
LIMIT
R B1
B2
C1
C2
LINE VOLTAGE
CIRCULATOR
L8124E
2
G
Z
1
2
1K2
R
B
1K1
R
HIGH
C1
LIMIT
B
C2
3
B1
B2
LOW VOLTAGE
GAS VALVE (eg, VR8300)
TO ADDITIONAL
L2
L1 R845A RELAYS
1
FOR OTHER ZONES
LINE VOLTAGE
OIL BURNER
RELAY OR
GAS VALVE
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
1
OVERLOAD PROTECTION AS REQUIRED.
CONTROL CASE MUST BE CONNECTED TO EARTH
2
GROUND. USE GROUNDING SCREW PROVIDED.
3
B1 IS 1/4 IN. TAB TERMINAL.
1
TO ADDITIONAL
R845A RELAYS
L1
L2
FOR OTHER ZONES
(HOT)
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
TR
OVERLOAD PROTECTION AS REQUIRED.
THTR
2 CONTROL CASE MUST BE CONNECTED TO EARTH
TH
GROUND. USE GROUNDING SCREW PROVIDED.
3 B1 IS 1/4 IN. TAB TERMINAL.
12
R845A RELAY ZONE 2
ZONE 2
CIRCULATOR
6
5
3
4
1
2
ZONE 2
LOW VOLTAGE
THERMOSTAT
M8827
R845A RELAY ZONE 1
6
5
3
4
1
2
ZONE 1
LOW VOLTAGE
THERMOSTAT
ZONE 1
CIRCULATOR
M8828