SECTION 20—4-WAY VALVE
61
FIGURE 20.1
Replacing 4-Way Valve - 5 Liter Models
Replacing Manifold Assembly
5 and 9 Liter Models
DANGER
To prevent electrical shock, ALWAYS disconnect concentrator from electrical
outlet before servicing.
1. Turn power Off (O) and unplug the unit.
2. Remove cabinet. Refer to Removing Cabinet on page 25.
3. Remove control panel. Refer to Removing Control Panel on page 50.
4. Remove the tie-wraps connecting the sieve bed hoses to top of manifold assembly.
5. Remove sieve bed hoses from manifold assembly.
6. Remove and label the two spade connectors from the valve pilot on top of the
manifold assembly.
7. Loosen the adjustable clamp on the heat exchanger side that secures valve manifold
input hose to heat exchanger.
8. Remove hose from end of heat exchanger.
9. 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.
10. 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.
NOTE: The Numbers indicate the mounting screw torque sequence: pre-torque to
1.1 N-M ± 0.2
N-M (10 in-lbs ± 2 in-lbs), then
torque to
2.5 N-M ± 0.2 N-M (22 in-lbs ± 2 in-lbs)
.
4-Way Valve Face
Mounting
Screws
4-Way Valve
Manifold
Assembly
Содержание Platinum IRC5LXO2AW
Страница 81: ...NOTES Part No 1118396 81 Platinum Oxygen NOTES...
