Warming Coil (Companion 1000); Removal; Warming Coil (Companion T) - CAIRE COMPANION 1000 Technical Manual

Companion 1000/T Liquid Oxygen System Technical Manual
5.11

WARMING COIL (COMPANION 1000)

5.11.1
B-701964-00 Rev. C
The warming coil on the Companion 1000 Portable is a heat exchanger that transfers
heat from the surrounding atmosphere to the fluid contents inside the coil. The purpose
of the warming coil on the Companion 1000 is to vaporize the liquid oxygen and warm
the resulting gaseous oxygen entering the breathing circuitry. The warming coil on the
Companion 1000 is not field serviceable. Replace the entire coil as a means of service.
Some older models may have a different warming coil from the current
warming coil shown in Figure 6-1. The "old" style coil is no longer available. If
you are replacing an "old" style warming coil, you must also replace the
primary relief circuit tube.

Removal

Refer to Figures 6-1 or 6-2, 6-4, and 6-7 to identify parts with bold number references.
1. Remove the side covers according to the side cover removal procedure (Section
5.2.1).
2. Use side-cut pliers to cut the two wire ties 22 from the warming coil.
-in. open-end wrench on the vent valve 10 body hex flats to hold the body
5
3. Use a /
8
11
stationary. Use a /
16
vent valve to the mounting bracket.
9
4. Use a / -in. open-end wrench to disconnect the
16
tube 26 connects to the manifold 7. Remove the vent valve and tube assembly
(Figure 5-28).
5. Use a 1 / -in. open-end wrench to disconnect the
2
warming coil 32 connects to the flow control valve 30.
6. Use a 1/2-in. open-end wrench to disconnect the
warming coil connects to the manifold 7. Remove the warming coil (Figure 5-29).
-in. open-end wrench to loosen the jam nut 3 that holds the
Figure 5-28
-in. tube nut 6 where the vent
1
/
4
-in. tube nut 27 where the
3 /
16
-in. tube nut 27 where the
3
/
16
Service and Repair 5-19