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67
Considering the allowable pipe length and
height drop to decide the installation position.
Make sure the distance and height drop
between indoor and outdoor unit not exceeded
the date in the following table.
Model
Max. Length
Max. Elevation
m
Ft.
m
Ft.
9,000Btu/h
25
82.2
10
32.9
12,000Btu/h
25
82.2
10
32.9
18,000Btu/h
30
98.7
20
65.8
24,000Btu/h
50
164.5
25
82.2
36,000Btu/h
65
213.8
30
98.7
48,000Btu/h
65
213.8
30
98.7
13.4.2 The procedure of connecting pipes
1. Choose the pipe size according to the
specification table.
2. Confirm the cross way of the pipes.
3. Measure the necessary pipe length.
4. Cut the selected pipe with pipe cutter
Make the section flat and smooth.
90
Lean
Crude
Burr
o
5. Insulate the copper pipe
Before test operation, the joint parts should
not be heat insulated.
6. Flare the pipe
Insert a flare nut into the pipe before flaring
the pipe
According to the following table to flare the
pipe
Pipe
diameter
Flare
dimension A
(mm)
Flare shape
Min
Max
1/4"
(6.35)
8.3
8.7
R0.4~0.8
A
45°
90
°
4
-+
3/8"
(9.52)
12.0
12.4
1/2"
(12.7)
15.4
15.8
5/8"
(15.9)
18.6
19.1
3/4" (19)
22.9
23.3
After flared the pipe, the opening part must
be seal by end cover or adhesive tape to
avoid duct or exogenous impurity come into
the pipe.
7. Drill holes if the pipes need to pass the
wall.
8. According to the field condition to bend the
pipes so that it can pass the wall smoothly.
9. Bind and wrap the wire together with the
insulated pipe if necessary.
10. Set the wall conduit
11. Set the supporter for the pipe.
12. Locate the pipe and fix it by supporter
For horizontal refrigerant pipe, the distance
between supporters should not be exceed
1m.
For vertical refrigerant pipe, the distance
between supporters should not be exceed
1.5m.
13. Connect the pipe to indoor unit and outdoor
unit by using two spanners.
Be sure to use two spanners and proper
torque to fasten the nut, too large torque
will damage the flare, and too small torque
may cause leakage. Refer the following
table for different pipe connection.
Pipe
Diameter
Torque
Sketch map
(kgf.cm)
(N.cm)
1/4" (6.35)
144~176
1420~1720
3/8" (9.52)
333~407
3270~3990
1/2" (12.7)
504~616
4950~6030
5/8" (15.9)
630~770
6180~7540
Summary of Contents for 38QUA009DS
Page 8: ...5 2 2 Part names of Indoor Outdoor units Cassette Unit...
Page 9: ...6 A5 Ducted Units A6 Ducted Units...
Page 10: ...7 Floor ceiling Units...
Page 11: ...8 HESP DUCTED Units...
Page 35: ...32 6 Wiring Diagram 6 1 Indoor Unit 40QTD018DS 40QTD024DS 40QTD036DS 40QTD048DS...
Page 36: ...33 40QSM018DS 40QSM024DS 40QSM036DS 40QSM048DS...
Page 37: ...34 40QZL018DS 40QZL024DS 40QZL036DS...
Page 38: ...35 40QZL048DS 40QZL060DS...
Page 40: ...37 6 2 Outdoor Unit 38QUA018DS 38QUA024DS...
Page 41: ...38 38QUA036DS...
Page 42: ...39 38QUA048DS 38QUA060DS...
Page 44: ...41 40QSM018DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 45: ...42 40QSM024DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 46: ...43 40QSM036DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 47: ...44 40QSM048DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 60: ...57 12 Field Wiring 18K 24K 36K 48K...
Page 61: ...58 60K...
Page 104: ...101 P U P V...
Page 105: ...102 P W P N...