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Appendices
12. Appendices
12.1 5700 Series One-Shot™ Brass
Couplings
12.1.1 Reconnecting Instructions
6. Lubricate male half diaphragm and synthetic rubber
seal with system-compatible refrigerant oil. Thread
coupling halves together by hand to ensure proper
mating of threads. Use proper size wrenches (on
coupling body hex and on union nut) and tighten
until coupling bodies seat or a definite resistance is
felt.
NOTE: The O-ring is only an intermediate seal during
the initial connection of a pre-charged unit/line set
combination. The O-ring is only used for sealing
between the time the diaphragm is pierced and the
final metal-to-metal seal is made.
The final leak-proof seal is a metal-to-metal connection
made between the male and female coupling bodies.
7. Using a marker, make a line lengthwise from the
coupling union nut to the bulkhead or bracket. Then
tighten an additional 1/4 turn; the misalignment of
the line will show the amount the coupling has been
tightened. The final 1/4 turn is necessary to ensure
the formation of a leak-proof joint.
1. Upon disconnection, remove O-ring and discard.
2. If O-ring is missing from groove, ensure O-ring is not
lodged inside coupling halves and reconnect without
O-ring.
3. Route the suction and or liquid lines in their original
manner.
If a torque wrench is used, the following torque values
are recommended:
4. Remove any protector caps and plugs.
5. Carefully wipe coupling seats and threaded surfaces
with a clean cloth to prevent the inclusion of dirt or
any foreign material into the system.
59
Coupling Size
Lb/Ft (N m)
-6
10-12 (13.5-16.3)
-10
35-45
(47.5-61)
-11
35-45
(47.5-61)
-12
55-65
(74.5-88)