GE AUH2436ZGDA Installation Instructions Manual page 14

Installation Instructions
Conventional Line Set Installation: Pipe Connection
• Attach the flare nuts to the indoor coil, using the same
process and precautions as found above for the outdoor
section flares.
• Using a torque wrench and back-up wrench, tighten the
indoor coil flare nuts to match the torque specification
chart.
• With the service valves closed, fill each tube with 500 PSI
of dry nigrogen and check for leaks.
• The indoor coil comes precharged with R410A so there is
no need to purge or evacuate the indoor coil.
• Evacuate the line set to at least 350 microns. From the
final micron level obtained, shut off the vacuum pump. If
the system rises no more than 150 microns within a minute
and stops, the evacuation can be considered sufficient.
• If the system rises more than 150 microns from the
original vacuum, there is either a leak or moisture has
not been removed. Locate and repair leak, or continue
evacuation as needed.
• When the evacuation is complete, replace the service valve
cores through the core removal tool.
• • Add additional refrigerant charge if needed before you
IMPORTANT: a 5/16" female by 1/4" male adapter will be required to connect conventional gauge hoses to
the service valves
.
Liquid Valve
Gas Valve
Service Port
NOTE: It shows the gauge connection will need to have the high side gauge hose connected to the high side liquid valve so both
Adding Refrigerant
lines can be evacuated and leak checked.
Outdoor Unit Model
Outdoor Unit
AUH2436ZGDA
AHU2436ZGDA
AHU4860ZGDA
14
Low side
Low Side Valve
Refrigerant Lines
(to indoor un it)
Refrigerant
Cap
Vacuum Pump
Adding Refrigerant
Standard Pipe Length
Standard pipe length
24.6 feet | 7.5m
(pre-charge)
25ft
25ft
open indoor service valves if indoor coil is so equipped.
• Record the amount of refrigerant added in permanent ink
at the line set length location entered earlier.
Screw on the flare nut of the flaring connecting pipe on the
outdoor unit valve.
Manifold Gauge
High Side
High Side Valve
Hose
Refrigerant Hose
Max Pipe Length
Requiring No Added Charge
Minimum pipe length /
≤31.2 feet | ≤9.5m
Maximum pipe length
10ft /
164
10ft /
98
Service Valves
Corrugate gas pile
Liquid Pipe
Conn ection Pipe
Cap
Service Pipe
Cap
Fig. 2.19
Additional Refrigerant
per Line Length
Additional Charge
0.58 oz/ft 54 g/m
0.58 oz per ft
ft
0.58 oz per ft
ft
31-5000483 Rev. 2