Airwell YCV280, Installation And Maintenance Instructions Manual

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A. Allowable pipe length and drop
These parameters differ from the outdoor unit. See the instruction manual attached with the outdoor
unit for details.
C. Pipe material and size
Rigid PVC pipe VP32mm (exterior diameter)
Foamed PE with thickness above 7 mm
Pipe
Insulation
B. Material of pipe and heat insulation
In order to avoid causing dew, heat
insulation should be dealt with at gas
side and liquid side.
model
Pipe material Phosphorus deoxidized copper seamless pipe (TP2) for air conditioner
Pipe size
(mm)
Gas side
Liquid side
15.88
9.52 9.52
15.88
D. Recharge of refrigerant
The refrigerant recharge shall be performed as specified in the installation instructions. The adding
procedure shall be aided with a measuring meter for a specified amount of supplemented refrigerant.
11) Duct design and installation
A. Count the necessary static pressure for air sending duct and air return duct and select proper model
due to static pressure.Forbidden to take the MED ESP unit as the Low ESP unit or use the unit without
duct.
B. Air sending duct and air return duct should be heat insulated.
C. Forbidden to get air return from the ceiling directly.
Double-spanner
operation
E. Refrigerant pipe connection
Conduct flared connection work to connect all refrigerant pipes.
The connection of indoor unit pipes must use double spanners.
The installing torque shall be as given in the following table.
9.52
15.88
19.05
Connecting pipe
O.D.(mm)
Installing torque
(N.m)
32.7~39.9
97.2~118.6
78.4~98.0
DBV030
DBV038~ 48
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