Flare dimensions
[
B dimensions
(mm)
A dimensions (mm)
Copper
pipe O.D.
(mm)
Clutch-style
Flare tool for R410A
Flare tool for R22, R407C
Tightening torque
N.m(kgf.cm)
[
B
45
- i
2
-
90
- i
0.5
-
R0.4~R0.8
A
Copper
pipe
Die
0~0.5
[
6.35(1/4")
1.0~1.5
0~0.5
1.0~1.5
[
9.52(3/8")
8.7~9.1
12.8~13.2
14~18(140~180)
34~42(340~420)
External LEV Box
1
30~40mm
30mm
Band
4
Pipe cover
3
Insulation material
for refrigerant pipe
(Procure locally)
Band
4
Joint pipe
2
R410A : Only for indoor unit 63 models
R407C : Only for indoor unit 50, 63 models
Push in
Pipe cover
3
Insulation material
for refrigerant pipe
Refrigerant pipe
Cross-section view of connection
Electrical box
Put the connector
in the electrical box.
Indoor unit
Cable (Accessory:100mm)
Cable (Accessory:5300mm)
CN60 connector (LEV, white)
Controller board
Linear expansion valve
External LEV Box
1
LEV
Electrical box
Put the connector
in the electrical box.
Indoor unit
Remove
Cable (Accessory:5300mm)
CN60 connector (LEV, white)
Controller board
Lead wire of
Connector (CN60)
Relay connector
Linear expansion valve
External LEV Box
1
LEV
Controller board
Connect to the CN60 connector.
Cable for External LEV Box
Electrical box
Fastener
5
Use the clamp for on-site wiring under the electrical
parts box to fix the cable together with the on-site
wirings (power supply cable, transmission cable and
remote controller cable).
Example: PKFY-P.VBM-E
3
Wiring procedure
Wiring shown below can be applied when the connector board and LEV are connected with relay.
Make sure to complete the work below before turning on the indoor unit
Wiring procedure differs depending on the indoor unit. To remove the electrical box cover when connecting the cables of each
indoor unit, refer to the installation manuals of each indoor unit. Fix the cable together with the on-site wirings (power supply cable,
transmission cable and remote controller cable). Use the fastener
5
to bind the cables in the electrical box.
4
Test run
Carry out test run referring to the installation manual enclosed with indoor/outdoor unit.
1. After deciding the installation location, carry out flaring work of liquid pipe and apply thin layer of refrigerant oil (procure locally) to
the flared seat surface.
2. Connect the field refrigerant piping.
3. Wrap the enclosed pipe cover
3
around the liquid pipe connection, pushing it on the outside of External LEV Box
1
.
4. Secure both ends of pipe cover
3
with the enclosed bands
4
to make sure it is insulated.
w
When flare tools for R22, R407C are used for R410A flaring work, refer to the table above. The size adjustment gauge can be used to secure A measurements.
Apply thin layer of ester oil, ether oil or alkylbenzene oil to the entire flare seat surface.
w
Do not apply it to the screws as it may cause loosening of the flare nut.
Make sure to use the flare nut attached to the unit
(Using commercial item may cause breaks).
2-2 Connecting pipes
At factory shipment, the connector for LEV in the indoor unit is connected to the connector (CN60) on indoor controller
board. Replace the connector (CN60) with the white connector of the cable (accessory: 100mm) for External LEV Box
1
.
Bind the removed lead wire of LEV with fastener
5
and place it in the electrical box.
Remove the relay connector in electrical box. Connect the lead wire of the connector (CN60) to the connector of the cable
(Accessory:5300mm) of External LEV Box
1
. Bind the removed lead wire of LEV with fastener
5
and place it in the electrical
box. Remove the cable (accessory: 100mm) since it is unnecessary.
