Honeywell Aquastat L8148A Product Data page 6

L8148A,E,J AQUASTAT® RELAYS
CONTROLLER
CASE
ADAPTER
(C)
2
CAPILLARY
TUBE
SETSCREW
IMMERSION
WELL CLAMP SCREW
Fig. 4. Position of bulb in immersion well, and use of well adapter when required.
CAUTION
Equipment Damage Hazard.
Exceeding load limits can damage the equipment.
1. When L8148E or J is used to power zone valves,
low voltage 1.4A; 1.2A load is the maximum
permissible when ambient temperature exceeds
77°F (25°C). Use additional transformer(s) if load
exceeds ratings.
2. When L8148E (with 50 VA transformer) is used to
power SV9500/SV9600, a separate transformer
must be used to power zone valves.
60-2278—9
BOILER
IMMERSION
WELL CLAMP
1
IMMERSION
WELL SPUD
SHORT TUBE
FITS IN CENTRAL
RECESS OF ADAPTER
BACK OF
CONTROLLER
CASE
IMMERSION
WELL CLAMP
OLD IMMERSION
SCREW
WELL ASSEMBLY
(A)
HEAT-CONDUCTIVE COMPOUND
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).
6
IMMERSION
WELL CLAMP
ADAPTER
SENSING
BULB
(D)
(B)
M8830