Replacing Manifold Assembly; Units Manufactured Before 7/24/03 - Invacare Platinum IRC5LXAW Service Manual

Replacing Manifold Assembly

Units Manufactured before 7/24/03

NOTE: For this procedure, refer to FIGURE 20.3 on page 73.
NOTE: This procedure applies to Platinum AW units manufactured before 7/24/03. Units
manufactured before 7/24/03 are equipped with an exhaust canister with exhaust hose as shown in
FIGURE 20.3.
Tools Required:
• Diagonal Cutters
• Flathead Screwdriver
• ¼-inch ratchet, ¼-inch socket, and ¼-inch extension
• Pliers
• Tie-wraps
1. Unplug unit.
2. Remove cabinet. Refer to Removing Cabinet on page 26.
3. Remove control panel. Refer to Removing Control Panel on page 59.
4. Cut and remove the tie-wraps connecting the sieve bed hoses to top of manifold
assembly (Detail "A").
NOTE: When removing the sieve bed hose from the manifold assembly use a flat head screwdriver
to pry hose up while simultaneously pulling the hose upward.
5. Remove sieve bed hoses from manifold assembly (Detail "A").
6. Remove and label the two spade connectors from the valve pilot on top of the
manifold assembly (Detail "A").
7. Remove the mounting screw(s) that secures exhaust canister assembly to rear of the
sound box. Refer to Replacing the Exhaust Canister/Exhaust Muffler (Platinum
Models Manufactured before 7/24/03) on page 32.
8. Remove exhaust muffler from exhaust canister by turning counter-clockwise.
9. Loosen the adjustable clamp (not shown) that secures valve manifold input hose to
heat exchanger (Details "A" and "C").
NOTE: When removing the valve manifold input hose from the heat exchanger, use a flat head
screwdriver to pry hose outward while simultaneously pulling the hose outward.
10. Remove valve manifold input hose from end of heat exchanger (Details "A" and "C").
11. Remove the two mounting screws, washers (1 per side) and bushings (2 per side)
securing the 4-way valve/manifold assembly to top of sound box (Detail "B").
12. The 4-way valve/manifold assembly can be removed from the concentrator by lifting
the assembly straight up through the cutout in the sound box.
13. Remove 4-way valve from manifold assembly. Refer to Replacing 4-Way Valve on
page 69 (Detail "A").
Part No 1118396
SECTION 20—4-WAY VALVE
71
Platinum™Oxygen