Inverter Hybrid Boiler
32
Flar
e pr
ocessi
ng and connection
Flare processing
1
2
4
5
3
Remove the protective cap at the end of a copper pipe.
Hold the copper pipe to allow the end of the pipe to
be headed downwards, cut the pipe as required, and
remove the burr on the insection using a reamer.
As the compressor oil is sensitive to moisture,
maintain the end of the copper pipe in a sealed
state during installation.
Remove the flare nuts from the connections of the
main body and place the flare at the end of the
copper pipe. Process the flare using a flare tool.
During installation, be careful not to expose the
inside of the copper pipe to the atmosphere for a
period exceeding the specified time.
Gradient
Wrinkle
Crack
Uneven
thickness
●
There should be no burr at the end part of the flare, and the processed surface of the flare
should be even.
How to connect refrigerant pipes between the indoor unit and the outdoor unit
1
2
How to connect refrigerant pipes
The flare connection method is widely used to connect a refrigerant pipe between the
indoor and outdoor units, as this method is simple to install and does not take much time.
As shown in the figure below, mount a processed flare at the end of a pipe, connect the
flare to the connection valve of the indoor/outdoor and fasten the flare nuts to fix it.
Flare Specifications
A
D
Outer
diameter
A
Liquid side
9.5
12.8~13.2
Gas side
15.88
18.6~19
