Constituent Value
Operating pressure 6 bar max.
Inlet temperature < 30°C
Minimum cooling water inlet temperature T
cooling water
> T
ambient
- 5 K
Anti-freeze protection / corrosion protection 20 … 30 %
Inhibitor NALCO 00GE056 0.2 … 0,25 %
Inlet temperature of the cooling water
The maximum cooling water inlet temperature is30 °C.
NOTICE
Inlet temperature of the cooling water
If the minimum inlet temperature of the cooling water cannot be maintained or reached, this
may result in condensation forming on the machine.
Adopt appropriate measures to achieve the inlet temperature of the cooling water.
Alternatively, you can dry the ambient air.
4.4 Ensuring cooling
Note
Note also the technical data on the rating plates on the motor enclosure.
Preconditions for adequate cooling
● For motors that are cooled by the ambient air, the cooling air must be able to flow unimpeded
to and from the motors. Hot discharged air should not be drawn in again.
NOTICE
Overheating
If the required cooling air flow cannot be maintained, the machine can overheat. This can
result in material damage.
● Maintain the required minimum clearance for customer-supplied mounted accessories
at the air intake opening and at the air discharge openings to ensure the required
cooling air flow.
● Comply with the conditions of the IP degree of protection.
More stringent requirements regarding the IP degree of protection may necessitate the
installation of suitable filters and special arrangement of the intake and outlet openings.
● Equipment and cables must be connected without strain.
Preparations for use
4.4 Ensuring cooling
SIMOTICS M-1PH8 1PH818., 1PH822.
30 Operating Instructions 07/2016
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