Hisense AKT26UR4RK4 Use And Installation Instructions page 23

(2) As shown, align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten
them fully with the torque wrenches. Screw up the nuts with 2 spanners.
CAUTION
·
The pipe go through the hole with the seal.
·
Protect the open end of the pipe against dust and moisture.
·
All pipe bends should be as gentle as possible. Use a pipe bender for bending.
·
Do not put the pipes on the floor directly.
(3) After finishing connecting the refrigerant pipes, keep it warm with the insulation material. Be sure to
insulate both the gas and liquid piping separately.
3.3.6 Fresh Air Intake
The unit refreshes your house with a pipe through the Fresh Air Intake.
Refrigerant connector
Tube size
φ6.35mm
φ9.52mm
φ12.7mm
Do not put the pipes on the
floor directly.
Protected with the tape or plug.
Clamp(attached)
Side of the
indoor unit
Fresh Air Intake
Flared nut
Torque（N.m）
Insulation (attached)
Refrigerant pipe
(field supplied)
Insulation
( field supplied
20
Installation and Maintenance
20
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60
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