4
S114c
SEP 2005
SERVICE AND MAINTENANCE
Failure to open:
Wrong voltage coil; low line voltage;
controlling switch or thermostat not contacting; coil
is burned-out; inlet/outlet pressure differential too
high; plunger jammed closed with dir t.
Failure to close:
Controlling switch or thermostat
not opening contacts; dir t under seat; eroded seat
par ts; plunger jammed upward by dir t.
Before opening the valve for ser vice, be sure it is
isolated from the system and all refrigerant is removed.
Disconnect electrical power from the coil. Remove
the coil by unscrewing the coil knob. Loosen the
four solenoid tube screws sufficiently and break seal,
proceeding cautiously to avoid any refrigerant still
remaining inside. Remove the tube screws to separate
the solenoid tube from the body.
Check face of Teflon seat in plunger, plunger spring,
and seat orifice in body. Clean, polish, or replace parts
as necessary. Always replace the solenoid tube when
replacing the plunger. These are wear parts and must
be inspected as part of a routine maintenance program.
The seat orifice is integral with the body. Install a new
solenoid tube gasket and oil lightly. Reassemble the
solenoid tube to the body with four screws. Factor y
torque is 2 ft-lbs (2.8 Nm). Carefully check the valve
for leaks before restoring to ser vice.
CAUTION
Hansen valves are for refrigeration systems only.
These instructions must be completely read and
understood before selecting, using, or servicing these
valves. Only knowledgeable, trained refrigeration
mechanics should install, operate, or ser vice these
valves. Stated temperature and pressure limits
should not be exceeded. Solenoid tubes should not
be removed from valves unless the system has been
evacuated to zero pressure. See also the Safety
Precautions in the current List Price and the Safety
Precautions Sheet supplied with product. Escaping
refrigerant might cause personal injur y, par ticularly
to the eyes and lungs.
WARRANTY
Hansen valves are guaranteed against defective
materials or workmanship for one year FOB factory. No
consequential damages or field labor is included.
ORDERING INFORMATION
FPT: Female Pipe Thread (American National Standard)
SW: Socket Weld to accomodate American and API pipe
WN: Weld Neck to match American Schedule 40 pipe
Standard molded solenoid coil is included for 50/60Hz
208/230, 115, or 24 volts; other voltages offered.
Standard coil connection is a a 1/2" fitting (NPSM).
Coils with DIN plug or 1/2" NPSM quick disconnect
plug are available; specify when ordering. Pilot lights
are available.
OPTIONAL BEACON PILOT LIGHTS
Pilot Light Kit includes Beacon pilot light,
knob and o-ring. A/C Coils Only.
TO ORDER:
Specify type, connection type and size, and volts.
U n l e s s ot h e r wi s e s p e c i f i e d , s t a n d a r d c o i l w i t h
1/2" connection will be supplied.
TYPICAL SPECIFICATIONS
“Refrigerant direct operating solenoid valves shall
have encapsulated, watertight coils, Teflon seat, steel
bodies, spring closing plunger, and be suitable for
a safe working pressure of 400 psig (27 bar), model
HS2 (HS2F) as manufactured by Hansen Technologies
Corporation or approved equal.”
STD
ALSO
HS2
1/2" (15) FPT
1/4" (7), 3/8" (10) FPT
HS2F
1/2" (15) FPT
1/4" (7), 3/8" (10) FPT
1/2" (15), 3/4" (20) SW,WN
CONNECTIONS
INCHES (MILLIMETERS)
MODEL
COLOR
PART NO.
Red
70-1100
Amber
70-1101
Green
70-1102
PILOT LIGHT KIT
Hansen Technologies Corporation
6827 High Grove Boulevard
Burr Ridge, Illinois 60527 USA
Tel: 630.325.1565 Fax: 630.325.1572 Toll: 800.426.7368
Email: info@hantech.com Web: www.hantech.com
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© 2006 Hansen Technologies Corporation
