Upgrading The Hex Hose Coupler; Removing The Hex Hose Coupler; Replacing The Hex Hose Coupler - HP 403349-003 Maintenance And Service Manual

Using a T-25 Torx driver, insert and tighten three screws on each side of the bottom cover plate.
12.
Turn the HEX unit right-side up, so it is sitting on the bottom cover plate.
13.
Replace the heat exchanger unit
14.
Replace the air deflector plate
15.
Replace the fan unit
16.

Upgrading the HEX hose coupler

The HEX hose coupler is a component of the HEX unit with ball valves that connects the HEX unit to the
main water lines.
The following tools are required for installation:
•
Adjustable wrench
•
Knife
•
T-25 Torx driver

Removing the HEX hose coupler

NOTE:
you will remove.
Remove the fan unit
1.
Remove the air deflector plate
2.
Remove the heat exchanger unit
3.

Replacing the HEX hose coupler

Verify that the ball valves inside the HEX unit and the ball valves on the hose assemblies are closed,
1.
with the handles perpendicular to the valves.
("Replacing the heat exchanger unit with
("Replacing the air deflector
("Replacing the fan
For this procedure, remove the fan unit seated directly behind the heat exchanger unit
("Removing the fan
("Removing the air deflector
("Removing the heat exchanger unit with
plate" on page 34).
unit" on page 52).
unit" on page 51).
plate" on page 33).
couplers" on page 63).
couplers" on page 59).
Upgrading procedures 132