Reciprocating Compressor M Series
4-7
4.4 Operation Notices
Notices for operation are as follows.
4.4.1 Start/Stop Limitation
To use the compressor normally, number of start/stop times and the stop time are specified as follows.
Table 4-5 Specification for number of start/stop times and the stop time
No. Item Qty. Remarks
1 Number of start/stop times 3 times/hour
2 Stop time At least 5 min
3 Minimum operation time At least 15 min
4 Unloader operation interval At least 3 min
To operate the compressor at 0% load,
contact our sales offices or service
centers.
5 Oil level
Oile sight glass
10²90%
6 Minimum oil supply temperature 30°C(86°F)
This should be higher than ambient
temperature.
7 Maximum oil supply temperature 60°C(140°F)
8 Maximum oil pump differential pressure 0.4MPa(58.02 Psi)
9 Maximum discharge temperature 160°C(320°F)
10 Minimum suction pressure
0.03MPaA
(4.35 PsiA)
11
Maximum high±low differential
pressure (Pd±Ps)
2.0MPaA
(290 PsiA)
12 Degree of superheat
20°C(68°F) or
below
Do not allow liquid back to occur.
4.4.2 Action for Stopping the Compressor for Long Period of Time
If the compressor will be stopped for a long period of time, close the suction /discharge shut off valves, then set
the motor (main power), heater power, and control board power to "OFF".
4.4.3 Operation after the Compressor has been stopped for Long
Period of Time
Refer to "4.2.1 Initial Operation Method".
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