Carrier 42TSV052P1, Installation Manual

Page: 13 / 21

CAUTION
8. INSTALL THE CONNECTING PIPE
Check whether the height drop between the indoor unit
and outdoor unit, the length of refrigerant pipe
meet the following requirements:
All field piping must be provided by a licensed
refrigeration technician and must comply with the
relevant local and national codes.
Do not let air, dust, or other impurities fall in the pipe
system during the time of installation.
The connecting pipe should not be installed until the
indoor and outdoor units have been fixed already.
Keep the connecting pipe dry, and do not let moisture in
during installation.
The Procedure of Connecting Pipes 8.1
Table 8-1
Model
42TSV052P1
42TSV067P1
42TSV080P1
42TSV110P1
The type of models
R410A inverter Split type air
conditioner
30
25
25
25
15
10
10
10
refrigerant pipe
The length of
height drop
The max
42TSV130P1
30
15
CAUTION
How to connect the pipes
Drill a hole in the wall (suitable just for the size of the wall
conduit), then set on the fittings such as the wall conduit and
its cover.
Bind the connecting pipe and the cables together tightly with
binding tapes.
Pass the bound connecting pipe through the wall conduct
from outside. Be careful of the pipe allocation to do on
damage to the tubing.
Connect the pipes. Refer to "How to Connect the pipes" for
details.
Expel the air with a vacuum pump. Refer to "How to expel the
air with a vacuum pump" for details.
open the stop values of the outdoor unit to make the
refrigerant pipe connecting the indoor unit with the outdoor
unit in fluent flow.
Check the leakage. Check all the joints with the leak detector
or soap water.
Cover the joints of the connecting pipe with the soundproof /
insulating sheath (fittings), and bind it well with the tapes to
prevent leakage.
Execute heat insulation work completely on both sides of
the gas piping and the liquid piping. Otherwise, this can
sometimes result in water leakage.
1
2
3
5
6
7
4
Be sure to with insulating materials cover all the exposed
parts of the flare pipe joints and refrigerant pipe on the
liquid-side and the gas-side. Ensure that there is no gap
between them.
Incomplete insulation may cause water condensation.
Flaring
1
Cut a pipe with a pipe cutter.
(refer to Fig.8-1)
Table 8-2
(mm)
Ø6.4
14.2 ～ 17.2 N m
(144 ～ 176 kgf cm)
8.3 8.3
Ø9.5
32.7
～
39.9 N m
(333 ～ 407 kgf cm)
12.0 12.4
Ø12.7
49.5
～
60.3 N m
(504 ～ 616 kgf cm)
15.4 15.8
Ø15.9
Ø19.1
61.8
～
75.4 N m
(630 ～ 770 kgf cm)
97.2 ～ 118.6 N m
(990
～
1210 kgf cm)
18.6 19.0
22.9 23.3
R0.4~0.8
45 °±
2
90
°
±
4
A
Insert a flare nut into a pipe and flare the pipe.
Refer to Table 8-2 for the dimension of flare nut spaces.
Fig.8-1
min max
Pipe gauge
Tightening torque
Flare dimensin A
Flare shape
90
Lean crude burr
11
installation manual
Fig.7-2
CAUTION
Don’t mix up the different refrigerants or abuse the tools and
measurements which directly contact with refrigerants.
Don’t adopt refrigerant gas for air vacuuming.
If vacuum level could not get to -0.1MPa, please check whether
resulted by leakage and confirm the leakage site.If no leakage,
please operate the vacuum pump again 1 or 2 hrs.
Connect with vacuum pump
Perform the pump (last for 2 hrs or above)
When get the vacuum level
-0.1MPa, the pump should
keep running for 20-60 mins
Shut down the
vaccun pump
Place the vaccum state unused (1 hrs or above)
1. Close-off the valve of
vacuum meter.
2. Cut off the connection
between pressure meter
and vacuum pump.
3. Close the vacuum
pump.