MAXA R407C - Page 36

CD 30 ÷ 520
36
CD
Models
60 120 180 240 300 360 420 480
High-pressure
switch
Cut off
Close
MPa
Reset automaticallyˈunadjusted
3.3
2.4
For compressor
Low-pressure
switch
Cut off
Close
MPa
Reset automaticallyˈunadjusted
0.03
0.15
Temp Sensor inside the
digital compressor
-
Controlled by micro- controller
When the Temp. is lower than 125ć, compressor
will not work. When the Temp. is higher than 125
ć, the capacity output of digital compressor will
decrease to 40%. When the Temp. is higher than
140ć,compressor will stop. After the malfunction
disappear, compressor will restart 3 minutes later.
Over-current protection A 18
Heating belt
Capacity
W
Each compressor has one
40
Discharge Temp.
Protection
Cut off
Close
ć
130
90
Anti-freeze Protection
Switch
ć
Controlled by micro- controller (one every cycle.)
3
 Notices
Because the water pump is under the control of main unit, it is forbidden to start the pump
by the main unit when cleaning water system pipeline.
Before finishing draining water out from pipeline, it is forbidden to start unit.
Install the water flow switch correctly; otherwise water shortage accident will happen.
During test-running, do not restart the unit by manual in 4 minutes after the unit stops.
In the season when the unit needs to be frequently used, don’t switch off power after the
unit stops. Otherwise, the compressor can’t be preheated, which may damage the
compressor.
After a long time without electrifying, please pre-electrify the unit 12 hours in advance to
preheat the compressors.