L8148A,E,J AQUASTAT® RELAYS
60-2278—9
8
Fig. 7. External connections and
internal schematic for L8148E.
Fig. 8. Wiring L8148E with multizone valves.
L1
(HOT)
L2
1
2
4
3
1
2
3
4
4
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
CONTROL CASE MUST BE CONNECTED TO EARTH
GROUND. USE GROUNDING SCREW PROVIDED.
REMOVE JUMPER WHEN ADDING L6006 LOW LIMIT
CONTROLLER TO SYSTEM.
B1 IS 1/4 IN. TAB TERMINAL.
LOW VOLTAGE
GAS VALVE
(eg, VR8300)
TR
TH
THTR
24V
THERMOSTAT
L8148E
CIRCULATOR
HIGH
LIMIT
L6006
LOW LIMIT
CONTROLLER
JUMPER
1K2
1K1
1K
L8148E
L2
L2
L1
L1
G
G
Z
Z
W
T
T
TV
TV
B1
B1
B2
B2
C1
C1
C2
C2
R
R
R
B
B
B
W
W
M1621B
L1
(HOT)
L1
(HOT)
L2
L2
1
1
2
4
3
TO LOW
VOLTAGE
BURNER
CIRCUIT
TR
TH
TH-TR
T87F
ZONE 3
T87F
ZONE 2
T87F
ZONE 1
L8148E
CIRCULATOR
HIGH
LIMIT
L2
L1
G
Z
T
TV
B1
B2
C1 C2
R
B
W
END SWITCH
V8043F
3
TR
TH
TH-TR
END SWITCH
V8043F
3
TR
TH
TH-TR
END SWITCH
V8043F
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
CONTROL CASE MUST BE CONNECTED TO EARTH GROUND.
USE GROUNDING SCREW PROVIDED.
ADD JUMPER AS SHOWN.
L8148E POWERS TWO V8043 ZONE VALVES, OR ONLY ONE V8043
WHEN AMBIENT TEMPERATURE EXCEEDS 77
°
F (25
°
C). USE AN
ADDITIONAL TRANSFORMER FOR ADDITIONAL VALVES;
A MAXIMUM OF TWO VALVES CAN BE POWERED WITH ONE
TRANSFORMER.
B1 IS 1/4 IN. TAB TERMINAL.
1
2
3
4
5
5
M1622C
