491
Console Type
Indoor Unit
Cutting and Enlarging
Vacuumizing
Open All Valves
Checkup for Air Leakage
Cutting or enlarging pipes should be proceeded by installation personnel according to the operating criterion if
the tube is too long or are opening is broken.
Vacuumize from the stop valve of outdoor units with vacuum pump. Refrigerant sealed in indoor machine is not
allowed to use for vacuumization.
Vacuum pump with check valve should be used for vacuumizing to prevent pump oil owing into the machine.
Open all the valves of outdoor units. [NB: oil balancing stop valve must be shut up completely when only
connected one master unit.]
Check if there is any leakage at the connecting part and bonnet with hydrophone or soapsuds.
Connecting
1. Connecting circular terminals:
The connecting method of circular terminal is shown in the Fig. Take off the screw, connect it to the terminal tier
after heading it through the ring at the end of the lead and then tighten it.
2. Connecting straight terminals:
The connection methods for the circular terminals are shown as follows: loosen the screw before putting the
line terminal into the terminal tier, tighten the screw and conrm it has been clamped by pulling the line gently.
3. Pressing connecting line:
After connecting line is completed, press the
connecting line with clips which should press
on the protective sleeve of the connecting line.
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