Hansen HS2 Operating instructions

KEY FEATURESINTRODUCTION
This threaded end industrial refrigeration duty
solenoid valve is very simple and compact but
rugged in construction. Body is plated steel alloy.
The direct lifting stainless steel plunger contains a
Teflon seat which closes on a stainless steel orifice.
When electrically energized, valve opens wide; when
de-energized, flow stops in the direction of the arrow
on the valve body.
APPLICATIONS
This small, direct lifting valve is used primarily as a
pilot for various larger gas-powered or liquid powered
main valves, as a remote pilot for back pressure
regulators or other devices, or as a liquid stop valve
for expansion valves, float valves, or as a general
purpose pilot line for ammonia, R22, R134a, CO2 and
other approved refrigerants or oil.
ADDITIONAL FEATURES
Compact, low cost
Low wattage, Hansen standard coil
300 psi (20 bar) MOPD
Stainless steel seat orifice
Removable solenoid tube
Heavy-duty, direct lift
CSA Certified
Non-asbestos gaskets
TEFLON DISC
STEEL BODY
WATERTIGHT
ENCAPSULATED
COIL
Specifications, Applications,
Service Instructions & Parts
HS2
SOLENOID VALVE
5/32" (4 mm) PORT
Bulletin S114c
SEP 2005
Threaded End
1/4" thru 1/2" FPT
(7 mm thru 15 mm)
1/4" thru 3/4" Flanged
(7 mm thru 20 mm)
for refrigerants
HS2 Solenoid Valve

2
S114c
SEP 2005
MATERIAL SPECIFICATIONS
Body: Steel, plated
Solenoid Tube: Stainless steel
Plunger: Stainless steel
Seat Orifice: Stainless steel
Seat: Teflon
Safe Working Pressure: 400 psig (27 bar),
600 psig (40 bar) available for CO2
Operating Temperature: –60°F to +240°F (–50° to
+115°C)
ADVANTAGES
Power-saving, low-wattage encapsulated coil; Teflon
disc seat; stainless steel trim; spring-closing. One
standard coil fits all Hansen valves. The valve can be
installed in vertical lines.
INSTALLATION, THREADED
CONNECTION
Match the arrow on the body with the system flow
direction. Protect the interior of the valve from dirt
during installation. Check mating pipe threads for
cleanliness and accuracy before installing. Use a
small quantity of pipe dope on pipe threads. Use a
flat jaw wrench on the body close to the pipe, being
careful not to damage the pipe threads with pipe
wrench jaws. Allow 2.25" (57 mm) above the valve
for coil removal.
ELECTRICAL
The coil draws 16 watts and will operate properly
between 85% and 110% of the rated voltage (24V coil
draws 19 watts). Standard coil connection is a 1/2"
fitting (NPSM) for conduit, with two 18" wire leads plus
ground wire. Coils with DIN plug or 1/2" NPSM quick
disconnect plug are available. Contact the factory.
All coils are totally encapsulated and meet NEMA 3R
(rainproof) and NEMA 4 (splashproof, approx. IP65)
requirements. The coil should only be energized
while on the solenoid tube. Otherwise, immediate coil
burnout may occur. To avoid bending the solenoid
tube, remove the coil from the valve before connecting
any electrical conduit. Pilot lights are available.
INSTALLATION DIMENSIONS
INCHES (MM)
HS2 HS2F
2.95"
(75)
ALLOW 2.25" (57)
FOR COIL REMOVAL
1/2" NPSM
STANDARD
1.13"
(29)
2.25"
(57)
0.63"
(16)
3.62"
(92)
3.94"
(100)
WITH PILOT LIGHT
2.95"
(75)
1/2" NPSM
STANDARD
ALLOW 2.25" (57)
FOR COIL REMOVAL
3.75"
(95)
4.07"
(103)
WITH PILOT LIGHT
0.80"
(20)
ODS, WN
1.88"
(48)
SW, FPT
3.00"
(76)
ODS, WN
3.76"
(96)
SW, FPT
1.50"
(38)

3S114c
SEP 2005
PARTS LIST
ITEM DESCRIPTION QTY PART NO.
Coil Kit (115V) 1/2" Fitting w/leads 170-1085
Coil Kit (208/230V) 1/2" Fitting w/leads 170-1086
Coil Kit (24V) 1/2" Fitting w/leads 170-1087
Coil Kit (Other Voltages) 1FACTOR
Y
A
bove kits consist of:
1a Bare Coil, 115V 50/60 Hz w/leads 1 70-0580
1b Bare Coil, 208/230V 50/60Hz w/lead
s
1 70-0581
1c Bare Coil, 24V 50/60Hz w/leads 170-0582
1d Other Voltage Coils 1FACTORY
2Coil Knob 170-0579
Solenoid Tube/Plunger Kit 1 70-1059
Above kits consist of:
3Solenoid Tube 170-0298
4Plunge
r
170-0295
5 O-Ring 1 75-0340
6 Solenoid Tube Gasket 1 70-0301
7 Screws (4) 4 70-0297

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 dirt.
Failure to close: Controlling switch or thermostat
not opening contacts; dirt under seat; eroded seat
parts; plunger jammed upward by dirt.
Before opening the valve for service, 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 necessar y. 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. Factory
torque is 2 ft-lbs (2.8 Nm). Carefully check the valve
for leaks before restoring to service.
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 service 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 injury, particularly
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.
Unless otherwise specified, standard coil with
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
Ambe
r
70-1101
Green 70-1102
PILOT LIGHT KIT
Hansen Technologies Corporation
6827 High Grove Boulevard
Burr Ridge, Illinois 60527 USA
Tel: [phone] Fax: [phone] Toll: 800.426.7368
Email: [email protected] Web: www.hantech.com
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