Publicité
INSTALLATION INSTRUCTIONS
4. Refrigerant pipe Installation (cont)
Selection of Piping Dimensions
Select refrigerant branching dimensions between outdoor units and connection kit, between connection kit and indoor
units according to the Operation & Installation Manual of outdoor units and indoor units.
Dimensions (in.) of connection pipe of the valve box
Model
Dimension (outer diameter)
Liquid pipe / convertible dimension
AH1-070B
AH1-140B
AH1-280B
AH1-560B
AH1-730B
Pipe Connection
Indoor
When the connection kit and the piping specifications are not the same, use a flare adapter.
Pipe Insulation
Please use the auxiliary insulation cylinder and tie wire for insulation works according to Fig.1 after the gas leakage test.
Note:
For gas-liquid pipe of connection kit shall be wrapped with insulation materials (purchased locally) when their auxiliary
insulation cylinders have been installed.
For installation of insulation materials for the flare nut connections, it shall be cautioned that:
(1) Please connect it tightly so as to ensure no gas leakage at both ends.
(2) The retaining clamp shall not be over tight so as to ensure the thickness of the insulation materials.
(3) Joints of insulation materials (purchased locally) for the upper flare nut connections shall be wrapped upwards.
(4) Ensure that joints of the insulation materials are installed upwards. (See Fig.2.)
Tie Wire
31-5000593 Rev. 0
1/4" / 3/8"
1/2" / 5/8"
Piping Specifications
Thermal Insulation Pipe
Fig. 1
Auxiliary Pipe
Tube side of connection kit
of the insulation pipe
Connection Kit
Seal
15
15
Outdoor
Field pipe side of the
insulation pipe
Bind both ends
with tie wire
Fig. 2
17
Publicité
