Honeywell Aquastat L8148A Product Data page 7

L1
HOT
1
3
G L1
R
3
W
B
L6006
LOW LIMIT
CONTROLLER
C1
G
L1
JUMPER
T T
1K
L2
L8148A
Fig. 5. External connections and internal schematic for L8148A.
R845
RELAY
T
1
2
L1
PUMP
(HOT)
1
L2
L8148A
G L2 L1 T T
2
C1 C2
B2 B1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
1
2
CONTROL CASE MUST BE CONNECTED TO EARTH GROUND. USE GROUNDING SCREW PROVIDED.
3
B1 IS 1/4 IN. TAB TERMINAL.
Fig. 6. Wiring L8148A in oil-fired, forced hot water, no tankless, zoned, pump system.
L2
24V
THERMOSTAT
L2 T T
L8148A
2
HIGH
B
LIMIT
R
4
C2 B2
B1
TO LINE
VOLTAGE
OIL BURNER
RELAY OR
GAS VALVE
CIRCULATOR
B R
1K1
3
1K2
C1
4
C2 B2
T87F
T
4 6 1
3 5
3
C554
7
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOADPROTECTION AS REQUIRED.
2
REMOVE JUMPER WHEN ADDING L6006 LOW
LIMIT CONTROLLER.
3
CONTROL CASE MUST BE CONNECTED TO EARTH
GROUND. USE GROUNDING SCREW PROVIDED.
4 B1 IS 1/4 IN. TAB TERMINAL.
B1
T87F
R845
T T
4 6
2 3 5
PUMP
ORANGE
F
WHITE
F
BLACK
T
T
R8184G
L8148A,E,J AQUASTAT® RELAYS
M2842A
T87F
R845
T T
1 4 6
2 3 5
PUMP
BURNER
AND
IGNITION
M2843A
60-2278—9