Install The Connecting Pipe - Carrier 42TSV052P1 Installation Manual

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)
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.

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:
Table 8-1
The type of models
R410A inverter Split type air
conditioner
CAUTION
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.
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. Close-off the valve of
vacuum meter.
2. Cut off the connection
between pressure meter
and vacuum pump.
3. Close the vacuum
pump.
Fig.7-2
The length of
The max
Model
height drop
refrigerant pipe
25 10
42TSV052P1
25 10
42TSV067P1
10
25
42TSV080P1
30
42TSV110P1 15
30 15
42TSV130P1
The Procedure of Connecting Pipes
8.1
1 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
2
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
3
details.
Expel the air with a vacuum pump. Refer to "How to expel the
4
air with a vacuum pump" for details.
open the stop values of the outdoor unit to make the
5
refrigerant pipe connecting the indoor unit with the outdoor
unit in fluent flow.
6 Check the leakage. Check all the joints with the leak detector
or soap water.
Cover the joints of the connecting pipe with the soundproof /
7
insulating sheath (fittings), and bind it well with the tapes to
prevent leakage.
CAUTION
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.
How to connect the pipes
Flaring
1
Cut a pipe with a pipe cutter. (refer to Fig.8-1)
90
Insert a flare nut into a pipe and flare the pipe.
Refer to Table 8-2 for the dimension of flare nut spaces.
T able 8-2
Pipe gauge Tightening torque
14.2～17.2 N m
Ø6.4
(144～176 kgf cm)
32.7～39.9 N m
Ø9.5
(333～407 kgf cm)
49.5～60.3 N m
Ø12.7
(504～616 kgf cm)
61.8～75.4 N m
Ø15.9
(630～770 kgf cm)
97.2～118.6 N m
Ø19.1
(990～1210 kgf cm)
Lean crude burr
Fig.8-1
Flare dimensin A
Flare shape
min max
(mm)
8.3 8.3
90 ° ± 4
12.0 12.4
A
15.4 15.8
18.6 19.0
22.9 23.3
installation manual
R0.4~0.8
11