Refrigerant Pipe; The Pipe Material; The Connection Of The Pip - Hisense AUV-18HR4SUA User Manual

4. Refrigerant Pipe

DANGER
Use the R410A refrigerant. When carrying on the
leakage check and test, do not mix in the oxygen, the
acetylene and flammable and the virulent gas, for
these gases are quite dangerous, and may possibly
cause explosion. It is suggested that the compressed
air, the nitrogen or the refrigerant be used to perform
these experiments.

4.1 The Pipe Material

(1) Prepare the copper pipe on the spot.
(2) Choose dustless, non-humid, clean copper pipe.
Before installing the pipe, use nitrogen or dry air to
blow away the tube dust and impurity.
(3)Choose the copper pipe according to Fig. 4.2.
4.2 The Connection of the Pipe
(1) The connection positions of the pipe are shown in
Fig. 4.1 and Fig. 4.2.
Liquid piping
Gas piping
Gas piping
Fig. 4.1 The connection positions of the tube
Gas pipe Liquid pipe
Model
Φ12.7mm
18K
φ15.88mm
24K,36K
Φ19.05mm
48K,60K
Fig. 4.2 The pipe diameter
The pipe can be connected from three different
directions.(back,right,top)
when the pipe is routed through the back.
If the bracket is removed,piping work will become
easy.
After piping,reinstall the removed branket.
When the pipe is routed through the back.
Cut the removed top cover,and install to the rear
panel instead of rear cover.
unit:(mm)
Liquid piping Drain piping
(left)
Drain piping
(right)
Drain pipe
Φ6.35mm Φ26mm
Φ9.52mm Φ26mm
φ9.52mm Φ26mm
Installation and Maintenance
(2) As shown in Fig. 4.3, screw up the nuts with 2 spanners.
Tube size
φ6.35mm
φ9.52mm
φ12.7mm
φ15.88mm
φ19.05mm
Fig. 4.3 Screw up the nut torque
(3) After finishing connecting the refrigerant pipes, keep
it warm with the insulation material.
Clamp(attached)
Side of the
indoor unit
Fig. 4.4 Piping insulation procedure
CAUTION
·
The pipe go through the hole with the seal.
·
Do not put the pipes on the floor directly.
Do not put the pipes on the
floor directly.
Protected with the tape or plug.
14
Torque（N.m）
20
40
60
80
100
Insulation (attached)
Refrigerant pipe
(field supplied)
Insulation
( field supplied )