Section 22: HEATING AND AIR CONDITIONING
PA1553
15
possibility of infection. The mineral oil will
also help in absorbing the refrigerant.
8.2.4 Precautions in Handling Refrigerant
Lines
1. All metal tubing lines should be free of
kinks, because of the resulting restrictions
on the flow of refrigerant. A single kink can
greatly reduced the refrigeration capacity of
the entire system.
2. The flexible hose lines should never be
allowed to come within a distance of 2-½"
(6,3 cm) from the exhaust manifold.
3. Use only sealed lines from parts stock.
4. When disconnecting any fitting in the
refrigeration system, the system must first
be discharged of all refrigerant. However,
proceed very cautiously, regardless of
gauge readings. If there happens to be
liquid refrigerant in the line, disconnect
fittings very slowly, keeping face and hands
away so that no injury can occur. If
pressure is noticed when fitting is loosened,
allow it to bleed off very slowly.
WARNING
Always wear safety goggles when opening
refrigerant lines.
5. In the event that any line is opened to the
atmosphere, it should be immediately
capped to prevent entrance of moisture and
dirt.
To Next Page
Loading...
Need help?
General
