Pipe Installation Notes - GE AUH2436ZGDA Instructions D'installation

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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.
10

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. 3

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Auh4860zgda

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