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B. Cleaning :
Never allow dust or dirt to enter the unit.
q When removing burrs from the flare nuts,
point the pipe opening downward.
w When passing the copper pipe through a
through-hole, cover the opening with a cap or
vinyl tape.
Fig. 29
Soapy water
C.Air tighteness :
The coolant refrigerant should not leak.
q Connect the flare pipe so that it is tight.
w Use 2 wrenches to tighten the flare nuts.
e Securely cover with caps.
r Carefully check for air-tightness with soapy water.
Cover with a cap or
vinyl tape
– 25 –
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