AWUF Installation Manual

NOTE: For the AWUF190816B* model, it is not

recommended to use the 1.0T application.

AWUT – FACTORY INSTALLED TXV MODELS

AWUT air handlers come equipped with a factory installed,

fully adjustable TXV for air handler installation follow

the below installation procedure.

NOTE: The TXV must be adjusted to meet the outdoor

unit’s target superheat value. During the superheat

adjustment on the TXV, the torque applied on the nut

cannot exceed 25 in-lbs. Refer to the EXPANSION VALVE

TROUBLESHOOTING section of this manual for assistance

with the adjustable TXV.

For air handler installation, follow the installation

procedure below.

1. Remove front access panel.

2. Remove access valve fitting cap and depress the

valve stem to release pressure. No pressure indi-

cates possible leak.

3. Replace fitting cap.

4. Unsweat the copper caps from the refrigerant tubes.

DO NOT USE ANYFORM OF CUTTING METHOD. CUT-

TING THE CAPS MAY RESULT IN THE GENERATION

OF COPPER SHAVINGS OR COPPER DUST.

5. Insert liquid line into liquid tube expansion and slide

grommet about 18" away from braze joint.

6. Insert suction line into suction tube expansion and

slide insulation and grommet about 18" away from

braze joint.

7. Braze suction and liquid line joints.

MAINTENANCE

Periodic Checkup and Service

This unit is designed to provide many years of depend-

able, trouble-free comfort when properly maintained.

Proper maintenance will consist of annual checkups and

cleaning of the internal electrical and heat transfer com-

ponents by a qualified service technician. Failure to pro-

vide periodic checkup and cleaning can result in exces-

sive operating cost and/or equipment malfunction.