Manitowoc Ice GR-0490N 产品宣传页
Manitowoc Equipment Works
Division of The Manitowoc Company, Inc. • 2110 South 26 Street, P.O. Box 1720, Manitowoc , WI 54221-1720 USA
Telephone 414-682-0161 • Fax - Sales: 414-683-7589 • Service/Parts: 414-683-7585 • Other: 414-683-7879
G-0400 REFRIGERANT FIELD
CONVERSION PROCEDURE
R-502 to R-402B
FOR MODELS
GR-0400A GR-0401W GR-0490N
GD-0402A GD-0403W GD-0492N
GY-0404A GD-0405W GY-0494N
WARNING!
Use only R-402B as
retrofit refrigerant. Other
replacement refrigerants
may cause poor performance
and/or component failure.
EQUIPMENT MODIFICATION REQUIREMENTS
Component Change Required
Compressor
None (replacement compressor is precharged with POE oil)
Expansion Valve (TXV)
None
High Pressure Cut-out
None
Low Pressure Cut-out (Remotes)
None
Fan Cycling Control (Air-cooled)
None
All Solenoid Valves
None
Water Regulating Valve (Water-cooled)
None
Heat
Exchanger
None
Electrical
Wiring
None
Branch Circuit Fuse Size
None
Air-cooled
Condenser
None
Water-cooled
Condenser
None
Evaporator
None
SYSTEM PERFORMANCE AFTER CONVERSION
Daily Ice Production Energy Efficiency
G-0400 8% increase 5% increase
G-0400 8% increase 5% increase
Operating discharge (high) pressure: air-cooled models will run 20-30 psig (138-207 kPa gauge)
higher than R-502 pressures published in service manuals. Set water-cooled head pressure the same
as R-502 settings.
higher than R-502 pressures published in service manuals. Set water-cooled head pressure the same
as R-502 settings.
Operating suction (low) pressure: will run 1-3 psig (7-21 kPa gauge) higher than R-502 pressure
published in service manuals.
published in service manuals.
8010513
Sheet 1 of 2
08/96
Sheet 1 of 2
08/96