Conventional Line Set Installation; Refrigerant Line Installation - GE UUY60ZGDAA Instructions D'installation

Installation Instructions

Conventional Line Set Installation

Pipe Size
Model
UUY24ZGDAA
UUY36ZGDAA
UUY48ZGDAA
UUY60ZGDAA
Proper flaring is essential to achieve an airtight seal.
1. Ensure there is enough insulation to protect the entire
line set from end to end. Use multiple light passes
when cutting tubing to the desired length, tightening
the cutting wheel only until light resistance is felt.
Ream both outside and inside, holding tube down to
keep reaming chips from falling into the tube.
2. Use the flare nuts from the accessories pouch,
located in the indoor unit packaging. Fit the nut on
the tubing to be flared.
Flare nut
Copper pipe
3. Remove the seal over the exposed end, and place
the tube into the R-410A flaring tool.
4. Run the tube against the flaring tool pipe stop, and
clamp the form on the tube.
5. Rotate the handle of the die clockwise until the clutch
releases, then remove the flared tubing from the form.
Flare form
A = ~1/16" (1.6mm)
6. Examine the flare to make sure there are no
imperfections on the lip of the flare, and that the back
of the flare exactly fits the seat of the flare nut.
31-5000486 Rev. 2
External Diameter (inch)
Gas pipe Liquid Pipe
3/4 3/8
A
Pipe

Refrigerant Line Installation

Refrigerant lines must be connected by a licensed,
EPA certified refrigerant technician in accordance with
established procedures.
IMPORTANT:
• Connecting refrigerant lines must be clean,
dehydrated, refrigerant-grade copper lines. Air handler
coils should be installed only with specified line sizes
for approved system combinations.
• Use care with the refrigerant lines during the
installation process. Sharp bends or possible kinking
in the lines will cause a restriction.
• Do not remove the caps from the lines or system
connection points unit connections are ready to be
completed.
1. Route the suction and liquid lines from the fittings on
the indoor coil to the fittings on the outdoor unit. Run
the lines in a direct path, avoiding unnecessary turns
and bends.
2. Ensure that the suction line is insulated over the
entire exposed length and that both suction and
liquid lines are not in direct contact with floors, walls,
ductwork, floor joists, or other piping.
3. Connect the suction and liquid line to the evaporator
coil.
4. To avoid damage; remove the TXV sensing bulb
while brazing. Relocate rubber grommets away from
the heat to avoid melting them.
5. Braze with an alloy of silver or cooper and
phosphorus with a melting point above 1,100°F.
NOTE: Do not use soft solder.
6. Reinstall the TXV sensing bulb and the rubber
grommets after brazing is finished.
7. Make sure the outdoor air conditioning unit has been
put in place according to the Installation Instructions
and is connected to the refrigerant lines.
While brazing, purge the system with Nitrogen to
prevent contamination. Manufacturer recommends
reattaching and insulating the TXV sensing bulb at a 10
or 2 o'clock position on the suction line, outside the coil
housing, no more than one foot from the connection.
Evacuate the system to 500 microns to ensure proper
air and moisture removal (Note: Deep evacuation or
triple evacuation method recommended). Open the
suction service valve slowly and allow the refrigerant to
bleed into the system before opening the liquid service
valve.
11