L7148F ELECTRONIC AQUASTAT
®
CONTROLLER
68-0189—2
8
Fig. 7. Typical three-wire zone valve hookup diagram.
Fig. 8. Wiring L7148F with S8610 Intermittent Pilot Ignition Module with automatic
vent damper plug and Honeywell D892/D896/M892/M896 Vent Damper.
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
GROUND MUST BE AN EARTH GROUND CONNECTION.
FOR EXTERNAL TRANSFORMER VA REQUIREMENTS,
REFER TO APPLICATION SECTION.
1
2
3
4
5
6
M17972
T87
ZONE 1
T87
ZONE2
T87
ZONE 3
T87
ZONE 4
B1 AND S1 ARE 3/16 INCH. QUICK CONNECT TERMINALS.
ALL OTHER TERMINALS ARE 1/4 INCH.
C, COM, Z, B2, G ARE ALL CONNECTED INSIDE DEVICE.
R IS A CONVENIENCE TERMINAL FOR 24V HOT
CONNECTION FOR USE WITH IGNITION CONTROLS.
COM
L7148F
HIGH LIMIT DIAL
2
L1
L2
DISCONNECT
SWITCH
1
6
TO ADVANCED
FEATURE
MODULE
TO BOILER
SENSOR
120V
L2X
L1X
C
R
3
OPTIONAL VENT
DAMPER PLUG
COM
BURNER
CONTROL
24V HOT
TO VALVE
OR
IGNITION
CONTROL
C1
G
L1 C2
L2
L2X
L1X
B2
B1
R
C
R
DATA
PORT
STATUS
THERMOSTAT
C
W
R
S1 S2
5
5
5
5
5
4
4
L1
(HOT)
L2
1
1
2
3
1
2
3
1
2
3
1
2
3
CIRCULATOR
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
GROUND MUST BE AN EARTH GROUND CONNECTION.
B1 AND S1 ARE 3/16 INCH QUICK CONNECT TERMINALS.
ALL OTHER TERMINALS ARE 1/4 INCH.
C, Z, B2, G ARE ALL CONNECTED INSIDE DEVICE.
FOR EXTERNAL TRANSFORMER VA REQUIREMENTS,
REFER TO APPLICATION SECTION.
R IS A CONVENIENCE TERMINAL FOR 24V HOT
CONNECTION FOR USE WITH IGNITION CONTROLS.
1
2
3
4
5
6
M11478B
S8610
MV MV/PV PV
GND
(BURNER)
24V
GND 24V TH-W
SPARK
VENT
DAMPER
PLUG
VR8304
PV
PV
MV
MV
COM
L7148F
HIGH LIMIT DIAL
2
L1
L2
DISCONNECT
SWITCH
1
6
TO ADVANCED
FEATURE
MODULE
TO BOILER
SENSOR
24V
COM
L2X
L1X
C
R
4
OPTIONAL VENT
DAMPER PLUG
C1
G
L1 C2
L2
L2X
L1X
B2
B1
R
C
R
DATA
PORT
ST
ATUS
THERMOST
AT
C
W
R
S1 S2
6
6
6
6
6
5
5
CIRCULATOR
THERMOSTAT
