Refrigerant Pipe; The Pipe Material; Piping Connection - Hisense AVT52UR4RA4 Use And Installation Instructions

4. Refrigerant Pipe

DANGER
Use the R32 refrigerant. During leakage check and
test, do not mix oxygen, acetylene and other
flammable or reactive gases. These gases are quite
dangerous, and may possibly cause explosion.
Use compressed nitrogen is to perform these
experiments.

4.1 The Pipe Material

(1) Prepare the copper pipe on the spot.
(2) Choose dustless, non-humid, and 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 Piping Connection

(1) The connection positions of the pipe are shown in
Fig. 4.1 and Fig. 4.2.
Liquid piping
Gas piping
Fig. 4.1 The connection positions of the pipe
Capacity
(×100W)
52
71~175
Fig. 4.2 The pipe diameter
The pipe can be connected from three different
directions. (rear, right, top).
If the pipe is routed from the back side, remove the
brackets for easier piping work. After piping, reinstall
the removed bracket.
Fig. 4.3
If the pipe is routed from the back side.
Cut the removed top cover, and install on the rear
panel instead of rear cover.
unit:(mm)
Drain piping
(left)
Drain piping
(right)
Gas Liquid
pipe(mm) pipe(mm)
φ12.7 φ6.35
φ15.88 φ9.52
(2) As shown in Fig. 4.4, screw up the nuts with 2 spanners.
Pipe size
φ6.35mm
φ9.52mm
φ12.7mm
φ15.88mm
(3) After completing refrigerant pipe connection, keep
it warm with the insulation material.
Side of the
indoor unit
Drain
pipe(mm)
De25
Fig. 4.5 Piping insulation procedure
De25
CAUTION
The pipe should pass through the hole with a seal.
·
Do not place the pipes on the floor directly.
·
Protected with the tape or plug.
18
Installation and Maintenance
Torque (N.m)
Fig. 4.4
Clamp(attached) Insulation (attached)
Do not put the pipes directly on
the floor.
20
40
60
80
Refrigerant pipe
(field supplied)
Insulation
(field supplied)