28
EN
REFRIGERANT PIPES CONNECTION
The main reason for refrigerant leakage is poor flaring. The proper flaring procedure is as follows:
Preparation of pipes and connecting cables
• For gas connection between the outdoor and indoor unit, please use copper pipes with a diameter of 1/4’’ x 0.6 mm
(Ф6.35 mm x 0.6 mm) and 3/8’’ x 0.6 mm (Ф9.52 mm x 0.6 mm).
• Measure the distance between the indoor unit – boiler and the outdoor unit – the aggregate.
• With appropriate tools, cut the pipe a little longer than the measured distance.
• Connecting cables should be about 1.0 m longer than the pipe length.
Fig. 6:
Pipe preparation
Deburring
• Completely remove all burrs from the cut cross section of pipe.
• Point the end of the copper pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the pipe.
Fig. 7:
Deburring
Putting the nut on
• Remove the flare nuts attached to the indoor and outdoor unit, and then put them on the pipe having completed burr removal
(it is not possible to put them on after flaring work).
Fig. 8:
Putting the nut on
