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Parker Hannifin Corporation
Climate & Industrial Controls Group
Cleveland, OH
Catalog CIC-2003-1/US
Refrigeration Solenoid Valves
248
Technical Information Electrical Specifications
Electrical Specifications
All Parker Refrigeration solenoid valves use standard
coil designs that are interchangeable on all valve
bodies. They are available in a wide variety of standard
voltages and frequencies. Coils are labeled with electri-
cal data providing easy identification.
Construction
Numerous construction options are available including
junction box housing, DIN terminals, conduit hub
housing and spade termination coils.
Encapsulated waterproof coils are standard on all
valves listed in the catalog. The special compound is
absolutely waterproof and impervious to oil, dust and
most corrosive fumes and vapors.
All coils are Class “F” or “H” rated for high temperature
application requirements. The coils are molded in
accordance with UL, NEMA, and other accepted
standards.
Standard Coil Options
trates which wires to connect to each other for 120 or
240 volt operation. Wiring and fusing must comply
with prevailing local and national wiring codes and
ordinances.
Electrical Supply Requirements
The solenoid coil must be connected to electrical lines
of correct voltage and frequency as indicated on the
coil label. The supply circuits must be properly sized to
give adequate voltage at the coil leads even when other
electrical equipment is operating. The molded coil is de-
signed to operate with line voltage from 85% to 110%
of the coil rated voltage. Operating with a line voltage
above or below these limits may result in reduced coil
life or coil burn out. Also, operating with line voltage be-
low the limit will result in lowering the maximum operat-
ing pressure differential (MOPD).
Wiring
Check the electrical specifications of the coil to make
sure they correspond to the available electrical service.
Valves with four-wire dual voltage option have a wiring
diagram shown in the following figure. The figure illus-
Wiring for Dual-Voltage Coil
Conversion from AC to DC Coils
The same valve assembly can be used for both AC
and DC service requirements. AC and DC coils are
interchangeable. To convert a valve assembly from AC
to DC service, select the appropriate DC coil wattage
and voltage per the valve specification chart based on
the system pressure requirements.
Electrical Data
To determine the approximate Holding or Inrush Cur-
rent for AC voltages including 24/60, 120/60, 208/60
and 240/60 in amperes, divide the voltage into the VA
rating indicated in the AC Power Consumption tables.
DC valves have no inrush current. The current rating in
amperes are shown in the DC table. Figures are based
on nominal values and will vary slightly depending on
operating voltage and coil tolerances.
VA
Holding
VA
Inrush
VA
Holding
VA
Inrush
R10 Series 18 37 38 68
R20 Series 19 43 40 78
R30 Series 19 32 42 59
R40 Series 19 32 42 59
R50 Series 18 37 38 68
R15 Series 17 33 42 63
R25 Series 16 33 42 63
R35 Series 16 33 42 63
R45 Series 16 33 42 63
R55 Series 17 33 42 63
AC Power Consumption Ratings
10 watt Coils 22 watt Coils
Valve Series
Normally Closed Valves
Normally Open Valves
Coil
Type 12 VDC 24 VDC
R25 Series 16 33
R35 Series 16 33
R45 Series 16 33
R55 Series 17 33
DC Current Comsumption Ratings (Amperes)
Coil
Type
Standard
Termination Protection
Junction Box 6” lead length
Junction box equipped with
grounding screw provision
Conduit Hub
18” lead length
2-wires
Type 1,2,3,3S,4,4X
DIN
DIN
(terminations per
DIN 43650/ISO 4400
requirements)
Cable glad or 1/2" NPT
connectors available
for IP65 protection
Leaded
18" Lead length
2-wires
Open frame enclosure
where suitable
Spade 1/4" Male
Open frame enclosure
where suitable