Pridiom Concealed Duct Installation Manual - Manual (Page 17)

15
installation manual
NOTE
The service valves of the outdoor unit should be completely
closed(as original status).Every time to connect,first to loosen
nuts, then connect the flare pipes within 5 minutes. If the nuts
have been loosened for a long time, dusts and other impurities
may enter the pipe system and may cause malfunction.So
please expel the air out of the pipe with refrigerant before
connection.
Expel the air(refer to the “8.1”)after connecting the refrigerant
pipe with the indoor unit and the outdoor unit.
Then fasten the nuts at the service valves.
Bend the connecting pipe of small wall thickness.
Cut out a proper concave at the bending part of the
insulating pipe.
Then expose the pipe(cover it with tapes after bending).
To prevent twist of deforming, please bend the pipe at a
proper radius.
Fig.7-3
Make the ends straight
The bending angle should not exceed 90 .
Bending position is preferably in the middle of the bendable pipe.
Do not bend the pipe more than three times.
Be sure to use the same insulating materials when you buy the
brass pipe. (More than 9mm/0.35in thick)
Be sure to use two wrenches simultaneously when you
connect or disconnect the pipes.
7.1 Preparation and Caution
7. INSTALL THE CONNECTING PIPE
Before installation make sure the height difference, the length
of refrigerant pipe, and the number of the bends between the
indoor unit and outdoor unit meet the following requirements:
Table 7-1 unit:m
The outdoor unit is charged with rating refrigerant amount in
the factory.Additional charge refers to the table below:
Table 7-2
7.2 The Procedure of Connecting Pipes
Connect the indoor unit first, then the outdoor unit.
Bend the tubing in proper way. Do not twist the pipe.
Bend the pipe with thumb
min-radius 100mm/3.94in Fig.7-1
Put some refrigerant oil on the surfaces of the flare pipe
and the joint nuts then wrench it for 3~4 rounds with
hands before fasten the flare nuts.(Refer to chart 16)
Use frozen oil
Fig.7-2
Measure the required length of the connecting
pipe, then make it by the following way.
1
All field piping must be provided by a licensed
refrigeration technician and must comply with the
relevant local and national codes.
Prevent let air, dust, or other impurities enter in the pipe
system during installation.
Insulation pipe shall be used to the gas piping and the
liquid piping. Otherwise, the condensate may happen.
CAUTION
liquid tube(mm) R410A R22
Ш6.35
Ш9.53
Ш12.7
Ш15.9
Ш19.0
0.022kg/m×(L-5)
0.011kg/m×(L-5)
0.060kg/m×(L-5)
0.030kg/m×(L-5)
0.110kg/m×(L-5)
0.060kg/m×(L-5)
0.170kg/m×(L-5)
0.085kg/m×(L-5)
0.250kg/m×(L-5)
0.125kg/m×(L-5)
0.030kg/m×(L-5)
0.015kg/m×L
0.065kg/m×(L-5)
0.030kg/m×L
0.115kg/m×(L-5)
0.060kg/m×L
0.190kg/m×(L-5)
0.095kg/m×L
0.290kg/m×(L-5)
0.145kg/m×L
orifice in the indoorunit
orifice in the outdoorunit
orifice in the outdoorunit
orifice in the outdoorunit
orifice in the outdoorunit
orifice in the outdoorunit
orifice in the indoorunit
orifice in the indoorunit
orifice in the indoorunit
orifice in the indoorunit
Model
12K
18K-24K
30K-42K
12K
18K-24K
30K-60K
48K-60K
12K
18K-24K
30K
48K-60K
36K
50Hz T1 condition/R22
Split type air conditioner
50Hz Vertical discharge air conditioner
/60Hz T1 condition/R22 Split type air
conditioner and Vertical discharge air
conditioner
The type of models
R410A inverter Split type air
conditioner and and Centrifugal
fan outdoor unit
50/164.04ft
50/164.04ft
30/98.42ft
15/49.21ft
50/164.04ft
30/98.42ft
15/49.21ft
30/98.42ft
30/98.42ft
25/82.02ft
10/32.8ft
25/82.02ft
R410A Split type air conditioner
and and Centrifugal fan outdoor
unit
50Hz/60Hz T3 condition
(outdoor unit down)
50Hz/60Hz T3 condition
(outdoor unit up)
the unit with quick joint
12K
48K-60K
18K-30K
36K
18K-24K
42K-60K
30K
36K
18K-24K
12K-18K
48K-60K
42K
30K
36K
50/164.04ft
25/82.02ft
15/49.21ft
30/98.42ft
50/164.04ft
30/98.42ft
25/82.02ft
30/98.42ft
25/82.02ft
50/164.04ft
30/98.42ft
30/98.42ft
50/164.04ft
15/49.21ft
35/114.83ft
5/16.4ft 5/16.4ft
25/82.02ft
20/65.62ft
30/98.42ft
25/82.02ft
15/49.21ft
8/26.25ft
20/65.62ft
25/82.02ft
15/49.21ft
10/32.8ft
20/65.62ft
20/65.62ft
25/82.02ft
12/39.37ft
5/16.4ft
15/49.21ft
25/82.02ft
10/32.8ft
8/26.25ft
20/65.62ft
10/32.8ft
8/26.25ft
20/65.62ft
refrigerant pipe
The length of
height drop
The max
NOTE:The number of bends is up to the length of the max
height drop.Usually for each 10m/32.8ft need a bend.
NOTE:the table above refer to the liquid tube.