Refrigeration Controller for Medium Temperatures - Parker Hannifin
Refrigeration Controller for Medium Temperatures PSK221N5EXBS PSK221N7EXBS Key Features: • The PSK221 controller manages medium temperature refrigeration units by controlling a compressor and sensing temperature
• Single digital output (relay): 16A compressor 1/2HP @ 120VAC 1-1/2HP @ 230VAC • Alarm buzzer and TTL serial port (RS485 Modbus®)
PSK221
• 1 NTC/PTC temperature sensor input • 1 multipurpose input (configure as switch or temperature sensor) • IP65 front panel protection • 3-1/2 digit display shows decimal point values (in Celsius mode) at -10.0° and below • Easy to understand multicolor display icons • Extractable screw terminal connections for easy installation • Front bezel size: 2.95” x 1.3” (75 x 33 mm) • Panel cut out: 2.79” x 1.14” (71 x 29 mm) • Power supply: (N5) 120VAC 50/60 Hz (N7) 230VAC 50/60 Hz
Product Overview: Ideal for open/closed display cases and bottle coolers, the PSK221 offers a digital controller solution for medium temperature refrigeration units. The PSK221 provides increased functionality with the addition of a multifunction input – which can be configured for a door switch, an evaporator
temperature sensor (for temperature terminated defrost), a condenser temperature sensor (for condenser overheat alarm and compressor lock-out) or to trigger energy saving mode. Other features include temperature alarms and easy setup with the optional programming key.
Electrical Connections:
3.27” (83 mm)
Accessories:
max. 10 A
2
3
4
5
8
Line PSK Power Supply (115VAC or 230VAC)
Serial Port (Modbus)
9 10 11 12 10 11 12
cabinet
2.32” (59 mm)
1
comp.
2.95” (75 mm)
PSK221
P4 = 3
auxiliary
K1
1.3” (33 mm)
cabinet multip./ door switch
Dimensions:
P4 = 1 or 2
second input
Component Diagram:
NTC Temperature Probe Item Number: 952899 5 ft. (1.5 m) Item Number: 952898 10 ft. (3 m)
Cabinet Temperature
Programming Key Item Number: PSKey Power Supply Item Number: PSPS01 Adaptor - TTL to RS485 Item Number: PSIF20TSX
Evaporator Temperature Compressor Control Open Display Case
© 2012 Parker Hannifin Corporation
Form 100-346 / 42012
Parker Hannifin Corporation Sporlan Division 206 Lange Drive • Washington, MO 63090 USA phone 636 239 1111 fax 636 239 9130 www.sporlan.com
• Single digital output (relay): 16A compressor 1/2HP @ 120VAC 1-1/2HP @ 230VAC • Alarm buzzer and TTL serial port (RS485 Modbus®)
PSK221
• 1 NTC/PTC temperature sensor input • 1 multipurpose input (configure as switch or temperature sensor) • IP65 front panel protection • 3-1/2 digit display shows decimal point values (in Celsius mode) at -10.0° and below • Easy to understand multicolor display icons • Extractable screw terminal connections for easy installation • Front bezel size: 2.95” x 1.3” (75 x 33 mm) • Panel cut out: 2.79” x 1.14” (71 x 29 mm) • Power supply: (N5) 120VAC 50/60 Hz (N7) 230VAC 50/60 Hz
Product Overview: Ideal for open/closed display cases and bottle coolers, the PSK221 offers a digital controller solution for medium temperature refrigeration units. The PSK221 provides increased functionality with the addition of a multifunction input – which can be configured for a door switch, an evaporator
temperature sensor (for temperature terminated defrost), a condenser temperature sensor (for condenser overheat alarm and compressor lock-out) or to trigger energy saving mode. Other features include temperature alarms and easy setup with the optional programming key.
Electrical Connections:
3.27” (83 mm)
Accessories:
max. 10 A
2
3
4
5
8
Line PSK Power Supply (115VAC or 230VAC)
Serial Port (Modbus)
9 10 11 12 10 11 12
cabinet
2.32” (59 mm)
1
comp.
2.95” (75 mm)
PSK221
P4 = 3
auxiliary
K1
1.3” (33 mm)
cabinet multip./ door switch
Dimensions:
P4 = 1 or 2
second input
Component Diagram:
NTC Temperature Probe Item Number: 952899 5 ft. (1.5 m) Item Number: 952898 10 ft. (3 m)
Cabinet Temperature
Programming Key Item Number: PSKey Power Supply Item Number: PSPS01 Adaptor - TTL to RS485 Item Number: PSIF20TSX
Evaporator Temperature Compressor Control Open Display Case
© 2012 Parker Hannifin Corporation
Form 100-346 / 42012
Parker Hannifin Corporation Sporlan Division 206 Lange Drive • Washington, MO 63090 USA phone 636 239 1111 fax 636 239 9130 www.sporlan.com
