Haier AC122FEBHA [7/12] Refrigerant distribution tube
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Haier AC122FEBHA [7/12] Refrigerant distribution tube

Haier AC322FEBHA [7/12] Refrigerant distribution tube
6
OK NO NO
Drainage pipe should incline from
higher inside to lower outside.
Correct
Drainage pipe
Incorrect
Drainage pipe
Incorrect
3. Installation of drainage pipe
According to spot requirement, drainage pipe
is provided by the user and connected firmly
with drainage pipe equipped on the machine
(pay attention to the joint to prevent from
water leakage). Indoor part of drainage pipe
should be made heatproof with heat insulation
materials to prevent from condensation.
(2)
Note: Outlet direction of drainage pipe is as
the right diagram.
Refrigerant distribution tube
Allowable length of distribution tube
Allowable deviation of distribution tube
Please read installation manual attached with outdoor unit.
Material and specification of distribution tube
Material of distribution tube Seamless tube of phosphorus deoxidized copper
specified for air conditioner
Type of machine
Specification of
distribution tube
AC092,122,142,162FEAHA
AC092,122,142,162FEBHA
AC182,242,282FEAHA
AC182,242,282FEBHA
Gas side
Fluid
side
Note: Data inside parentheses is wall thickness of copper tube with unit of mm.
Air tightness test
Evacuation Addition of refrigerant
Air tightness test, evacuation and addition of refrigerant should be carried on according to installation
manual of outdoor unit.
During air tightness test, indoor unit cannot be powered on until vacuum evacuation is finished.
(Internal electronic expansion valves will all close and evacuation cannot be fully done just from
either fluid or gas side of distribution tube if indoor unit is powered on). Otherwise, evacuation
should be done from both sides of the distribution tube.
Note
Air leakage test
Check air leakage from joint part of distribution tube and valve covers of outdoor unit.
Checkup of joint part of distribution tube MUST adopt the same refrigerant as inside the machine.
(NOTE:To type AC092-282FEAHA units used refrigerant R22.
To type AC092-282FEBHA units used refrigerant R407C .)
Open all valves of outdoor unit
Heat insulation
Use attached heatproof pipe for heat insulation of joint part of distribution tube of indoor unit and
make it seamless.
Poor heat insulation can cause moisture condensation and result in water leakage
Note

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