Wiring - Honeywell Aquastat L8124B Product Data

CONTROLLER
CASE
ADAPTER
(C)
2
CAPILLARY
TUBE
SETSCREW
IMMERSION
WELL CLAMP SCREW
1 BEND THE CAPILLARY TUBE TO HOLD THE SENSING BULB IN GOOD THERMAL CONTACT WITH THE IMMERSION WELL AT POINTS (A) AND (B).
2
ASSURE THAT CAPILLARY TUBE FITS FREELY IN THE ADAPTER SO THE TENSION OF THE CAPILLARY TUBE AT POINT (C)
HOLDS THE SENSING BULB IN GOOD THERMAL CONTACT WITH THE IMMERSION WELL AT POINT (D).
Fig. 9. Position of bulb in immersion well, and use of well adapter when required.

WIRING

IMPORTANT
Terminals on the L8124 Aquastat Relay are
approved for use with only copper wire. The
terminals allow only wrap-around wiring.
1. Strip 7/16 in. of insulation from
the wire end.
2. Wrap the wire at least 3/4 of the
distance around the screw as
shown.
3. Using a standard, flat-headed
screwdriver, tighten the screw
until the wire is snugly in contact
with the screw and contact plate.
4. Tighten the screw an additional one-half turn.
NOTE: Do not use a push-type ratchet screwdriver.
All wiring must comply with local electrical codes and
ordinances. Do not exceed the limits in the Specifications
section when applying this control. Use manufacturer
instructions when wiring controlled equipment or refer to
typical hookups in Figs. 10 through 21.
BOILER
IMMERSION
WELL CLAMP
1
IMMERSION
WELL SPUD
SHORT TUBE
FITS IN CENTRAL
RECESS OF ADAPTER
M8843
L8124A,B,C,E,G,L,M AQUASTAT® RELAYS
BACK OF
CONTROLLER
CASE
OLD IMMERSION
WELL ASSEMBLY
(A)
HEAT-CONDUCTIVE COMPOUND
LOW VOLTAGE
THERMOSTAT
T
T
1K
W R
LOW LIMIT/
CIRCULATOR
1K2
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
2 CONTROL CASE MUST BE CONNECTED TO EARTH GROUND.
USE GROUNDING SCREW PROVIDED.
3
B1 IS 1/4 IN. TAB TERMINAL.
Fig. 10. L8124A,C single zone connections
and internal schematic.
7
IMMERSION
WELL CLAMP
ADAPTER
IMMERSION
WELL CLAMP
SCREW
SENSING
BULB
(B)
M8830
L8124A,C
2
G
L1
1
(HOT)
2
L2
B
1K1
ZR
ZC
LINE VOLTAGE
OIL BURNER
B
RELAY OR
HIGH
GAS VALVE
3
LIMIT
R B1
B2
C1
C2
LINE VOLTAGE
CIRCULATOR
(D)
1
M8802
60-2061—10