Pipe Installation Notes - GE AUH2436ZGDA Installation Instructions Manual

Installation Instructions
• It is very important to measure the exact length of the line set, as the refrigerant charge is critical.
• Never braze tubing joints without using a dry nitrogen purge during and after heating the joint.
• When changing piping direction, a tubing bender must be used.
• Flexible connection pipes are shipped with outdoor unit to aid in connecting the line set to the service valves.
• Make sure insulation covers every inch of exposed tubing.
• Insulation value should never be less than 3/4". Refer to local code for correct thickness and material type.
• Tubing must be able to withstand the high operating pressures of R-410A refrigerant.
• Never use a flaring tool not intended for R-410A refrigerant.
• Make multiple passes with a tubing cutter so as not to compress the pipe.
• Never flare tubing without reaming the outside and inside of the pipe.
• Only use flare nuts intended for R-410A refrigerant.
• If the vertical distance between the indoor and outdoor units is more than 30 feet, an oil trap must be installed every 20
feet.
• Use a reducer if the service valve is larger than the line set.
Pipe Size
Outdoor Unit Model
Liquid
AUH2436ZGDA
3/8 inch
AUH4860ZGDA
CAUTION
Be extremely careful not to dent or damage the piping while bending away from the unit. Any dents in
the piping will affect the unit's performance.
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Pipe Installation Notes

Maximum Pipe Length
Gas
164 ft (50m)
3/4 inch
98 ft (30m)
Maximum Drop between Liquid Gas indoor
and outdoor unit
50 ft (15m)
31-5000483 Rev. 2