ClimaCool UCR 30, 50 and 70 tons Manual - Manual (Page 28)

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28
Malfunction – Low Head Pressure Chart
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WARNING: Serious injury could result from an explosion
caused by the rapid expansion of trapped liquid refrigerant
subjected to high temperature. ALWAYS OPEN OR VENT
THE SYSTEM BEFORE APPLYING HEAT TO REMOVE SYSTEM
COMPONENTS. Break the element charging cap tube on
valve dome by hand or with a clean cut tool. DO NOT use
side cutters, which may seal the opening.
Installation Precautions
1. Do not overcharge — see charging procedures on
pages 26.
2. Be sure that the piping does not allow liquid refrigerant
to be trapped in sections where hydrostatic pressure
can develop.
3. Be sure that the receiver is large enough to hold the
entire charge during “warm” operation.
4. Do not overheat — see brazing procedures on page 25.
5. “Caution:” on page 25.
6. “Caution:” on page 27.