Carrier XCT 7 40VD072H-7S-QEE, Инструкция по установке и эксплуатации

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Refrigerant Recharge Amount
Connecting Procedures of Refrigerant Tubing
Connecting
Fill the refrigerant according to the installation instruction of outdoor unit. The addition of R410A refrigerant must be
performed with a measure gage to ensure the specified amount. Too much or too little refrigerant can cause compressor
failure.
Nitrogen-filling protection should be used with soft soldering.
Cutting and Enlarging
Checkup for Air Leakage
Cutting or enlarging pipes should be carried out by installation personnel depending on the operating criterion if the
tube is too long or flare opening is broken.
Vacuumizing
Vacuumize from the stop valve of outdoor units with vacuum pump. Refrigerant sealed in indoor machine is not allowed
to used for vacuumization. Vacuum pump with a check valve should be used for vacuumizing to prevent pump oil from
flowing into the machine.
Open All Valves
Open all the valves of outdoor units. [NB: oil balancing stop valve must be shut up completely when only connected to
one main unit].
Check if there is any leakage at the connecting part and bonnet with hydrophone or soapsuds.
1. Connecting circular terminals:
The connecting method of circular terminal is shown in the Fig. Remove 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 confirm 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.
correct
pressing
pressing clip
terminal tier
wrong
pressing
Installation Procedures
ENGLISH