1.3.2 Signs and Labels
(Attached to pump cover)
This is to indicate motor rotating direction.
When phase reversal happens, the alarm
sounds and indicator on control panel will
indicate. Please exchange the place of two
of the electrical wires to solve this problem.
Attentions!
This is general warnings which operators
should pay attention to.
High voltage! Electrical shock may happen.
Carefulness is required from the operator.
In order to keep a stable temperature,
cooling water pressure should not be less
than 2bar, but also no more than 5bar.
Clean the Y type strainer to ensure cooling
capacity of the machine.
1) Before operation, make sure that cooling water is clean soft water without
pollutants.
Low quality water brings limescales, which may cause problems.
Low quality water may be the reasons for heater wire break, worn pump
leaf, less flow rate, that eventually affect temperature rising.
2) If problems of drainage or bad temperature control are noted, please clean
solenoid valve and cooling water inlet and outlet.
3) Do not move the unit when it is in operation.
4) When in need of repairing, wait until oil temperature falls below 30 .
5) Motor overload may be caused by phase shortage, pipe obstruction, broken
bearing, etc. Motor overload relay will trip off to stop the machine when this
happens. Fixing the problems, press RESET on overload relay to clear the
alarm.
6) Before turn off the pump, wait until oil temperature falls blow 50 . Or the
life of the unit would be affected.
1.3.3 Operation Regulations
General Description
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