Hisense 18K Installations- Und Gebrauchsanweisungen Seite 17

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.
Gas piping
Drain piping
Fig. 4.1 The connection positions of the tube
Capacity
Gas pipe Liquid pipe
(Btu/h)
φ12.7
18K
24K
φ15.88
36K,42K,48K,
φ19.05
60K
Fig. 4.2 The pipe diameter
The pipe can be connected from three different
directions.(rear, 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 bracket.
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)
(right)
Drain pipe
φ6.35
φ9.52
φ9.52
(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
(3) After finishing connecting the refrigerant pipes, keep
it warm with the insulation material.
Side of the
indoor unit
De25
De25
Fig. 4.4 Piping insulation procedure
De25
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
Installation and Maintenance
Torque（N.m）
Fig. 4.3 Screw up the nut torque
Insulation (attached)
Clamp(attached)
20
40
60
80
100
Refrigerant pipe
(field supplied)
Insulation
( field supplied )