Connecting The Refrigerant Pipe - Gree GEH09AA-K6DNA1E Instructions Originales

Installation of indoor unit

Connecting the refrigerant pipe

1) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leaks.
Coat here with refrigeration oil
2) Align the centres of both flares and tighten the flares and tighten the flare nuts 3 or 4 turns by hand.
Then tighten them fully with the torque wrenches.
3) To prevent gas leakage, apply refrigeration oil on both inner and outer surfaces in the flare. (Use refrigeration oil for
R410A.)
Flare nut tightening torque
Gas side
09K/12K
3/8 inch
31-35 N.m
Caution on piping handling
1)Protect the open end of the pipe against dust and moisture.
2)All pipe bends should be as gentle as possible. Use a pipe bender for
bending.
(Bending radius should be 30 to 40mm or larger.)
Selection of copper and heat insulation materials
When using commercial copper pipes and fittings, observe the
following:
1)Insulation material: Polyethylene foam
Heat transfer rate:0.041 to 0.052W/mK(0.035 to 0.045kca/(mh
Refrigerant gas pipe's surface temperature reaches 110
Choose heat insulation materials that will withstand this temperature.
2)Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
Gas side
09K/12K
O.D. 9.5mm O.D. 12.7mm
Thickness 0.8mm
3)Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
Liquid side
18K 09K/12K/18K
1/2 inch 1/4 inch
50-55 N.m 15-20 N.m
Liquid side
18K
O.D. 6.4mm
Wrench
Indoor unit tubing
Gas pipe
max.
Gas pipe
insulstion
Gas pipe thermal insulation
09K/12K 18K
I.D. 12-15mm I.D. 14-16mm
Thickness 10mm Min.
25
INSTALLATION INSTRUCTIONS
Open-end wrench (fixed)
Flare nut
Connection pipe
Be sure to
place a cap.
If no flare cap is
available,cover
the flare mouth
with tape to keep
dirt or water out.
Inter-unit wiring
Finising tape
Liquid pipe
thermal insulation
I.D. 8-10mm
Liquid pipe
Liquid pipe
insulation