These controls can be used not only in florinated refrigerants, but also in the air and liquid (allowed liquid temperature: -45 C + 120 C). Micro-switch structure ensures reliable switch function. Single pressure
controls can be supplied by single high and single low, they can be respectively equipped on high and low pressure side of compressor
JC35-6 Pressure differential Controls consists of two oppositely located bellows. One is H.P. Bellow and the other is an L.P. Bellow. The pressure differential actuating on two oppositely located bellows is balanced by a spring. If the pressure differential is less than the set point, owing to the lever action, the switch is on and keeps the electric heater in the time delay mechanism in operation. The contact of the time delay switch are then in off position after certain time delay interval (about 90 sec.) the power supply is cut off. A manual reset device is mounted in the time delay mechanism of the control. When the compressor has stopped due to oil pressure failure, the control cannot be reset automatically after it has actuated. Push the reset button after the error has been corrected. Then the time delay switch in the time delay mechanism will close the motor control circuit and start up the compressor.
HP,LP. HP/LP SUITABLE FOR ALL REFRIGERANTS OTHER THAN AMMONIA
Model
Range
Differential
Factory Set
Min
Max
Min
Max
off (on)
on (off)
306F
Low Side
-10
87
9
58
44
29
High Side
72
435
Fixed 44 to 72
290
217
Range
Low Side
-10
87
9
58
44
29
High Side
72
435
man.
290
man
6F
-10
87
9
58
44
29
30F
72
435
Fixed 44 to 72
290
217
30FS
72
435
man.
290
man.
OIL DIFFERENTIAL SWITCH SUITABLE FOR ALL REFRIGERANTS OTHER THAN AMMONIA
