Operating and service manual
200 of 222 pages
Caution: Do not overcharge the unit.
Leakage detection
Leakage detection is done under pressure test, as described in this manual.
While the unit is pressurized it is possible to check all soldered and screwed joints of the piping
system.
This is done with a leakage detection agent or with a solution with high foambuilding soap.
The agent or water / soap solution is sprayed upon the joints. If there is a leakage bubbling, foam
will occur.
This leakage detection test can also be done while the unit is running charged with refrigerant by
means of a refrigerant detector or soap solution.
Leakage detection is also done during pump down of unit or compressor, as described in this
manual.
Fan motors
In order to prevent a single wire from getting caught between Ground screw and junction box
cover, a cable tie collecting all wires except ground wire, needs to be placed in the center of the
junction box. Furthermore is insulation tape applied on top of the Ground screw. This reduces the
possibility of sharp edges on the top of the Ground Screw to damage nearby wiring.
