Rp14A Warming Coil Assembly Rr (C1000); Rp14B Warming Coil Assembly Rr (C1000T); Rp15 Vent Valve Test - CAIRE Companion C1000 Technical & Service Manual

XI
Troubleshooting & Repair Procedures
RP14A – Warming Coil Assembly RR (C1000)
1) Remove the covers (RP4).
2) Use side-cut pliers to cut the two wire ties from the warming
coil.
3) Use a 5/8inch open-end wrench on the vent valve body hex
flats to hold the body stationary. Use a 11/16inch open-end
wrench to loosen the jam nut that holds the vent valve to the
mounting bracket.
4) Use a 9/16inch open-end wrench to disconnect the 1/4inch
tube nut where the vent tube connects to the manifold.
Remove the vent valve and tube assembly (Figure 17).
Figure 17: Warming Coil Removal
5) Use a 1/2inch open-end wrench to disconnect the 3/16inch
tube nut where the warming coil connects to the flow control
valve.
6) Use a 1/2inch open-end wrench to disconnect the 3/16inch
tube nut where the warming coil connects to the manifold.
Remove the warming coil (Figure 18).
Figure 18:Warming Coil Removal
7) Install the warming coils by reversing steps 1-6.
NOTE: Be sure to replace the wire ties after reinstalling the
warming coil. The wire ties hold the warming coil away from any
moisture that may accumulate in the moisture pad at the bottom
of the unit.
NOTE: Do not overtighten the tube nuts on the warming coil.
Overtightening may result in a cracked fitting. Only a slight in-
crease in torque is required to seal a compression fitting that has
already been made up. When making up a new fitting, three-quar-
ters of a turn from finger-tight is required for 3/16inch tubing.
RP14B – Warming Coil Assembly RR (C1000T)
1) Remove the covers (RP4)
2) Use side-cut pliers to cut the wire tie from the warming coil.
3) Use a 1/2inch open-end wrench to disconnect the 3/16inch
tube nuts where the warming coil connects to the two brass
tees. Remove the warming coil.
4) Use a 9/16inch open-end wrench to disconnect the 1/4inch
tube nut where the fill tube connects to the female fill con-
nector adapter.
5) Use a 9/16inch open-end wrench to disconnect the 1/4inch
tube nut where the fill tube connects to the manifold.
Remove the fill tube.
6) Use a 1/2inch open-end wrench to disconnect the 3/16inch
tube nut where the warming coil connects to the flow control
valve.
7) Use a 1/2inch open-end wrench to disconnect the 3/16inch
tube nut where the warming coil connects to the brass tee.
Remove the warming coil.
8) Use a 1/2inch open-end wrench to disconnect the 3/16inch
tube nut where the spined tube connects to the manifold.
9) Use a 1/2-in open-end wrench to disconnect the 3/16inch
tube nut where the spined tube connects to the brass tee.
Remove the spined tube.
10) Install the warming coils by reversing steps 1-9.
NOTE: Be sure to replace the wire tie after reinstalling the warm-
ing coil.
RP15 – Vent Valve Test
1) Remove the covers (RP4) and set the FCV to off (0 LPM).
2) Connect the pressurizing setup to the C1000/T as shown in
Figure 9 and pressurize the unit to approximately 1.52 bar
(22 psi), or fill the unit with liquid oxygen.
3) Wet a finger with leak detector and lightly place it against
the open end of the vent tube located near the bottom of the
unit. Verify that no leaks are present and no bubbling occurs.
4) Open the vent valve and listen for a sudden exhaust of gase-
ous oxygen.
Companion Portable Technical Service Manual • PN 20562220 Rev B
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