Carrier XCT7 Installations- Und Benutzerhandbuch Seite 20

Installation Procedures
Tubing Materials & Specifications
Please refer to the attached manual for outdoor units.
Model
Tubing Size (mm)
Liquid pipe
Tubing Material
Refrigerant Filling Amount
Add the refrigerant according to the installation instruction for outdoor units. Compressor failure can be caused by
filling too much or too little refrigerant. Refer to the outdoor unit manual for additional evacuation and pressure test
procedures prior to system operation.
Connecting Procedures of Refrigerant Tubing
Proceed with the flare tube connecting operation to connect all the refrigerant tubes.
•
Dual wrenches must be used for connecting the indoor unit tubing.
•
For mounting torque, refer to the table on the right.
wrench
Cutting and Enlarging
Cutting or enlarging pipes should be carried out by
installation personnel according to the operating
criterion, if the tube is too long or the flare opening is
broken.
40VD005-009S-7S-QEE
Gas pipe
Phosphor–deoxy-bronze seamless pipe (TP2) for air conditioner
40VD012-018S-7S-QEE
9.52
6.35
Outer Diameter of Tubing (mm)
Connecting
1. Connecting circular terminals:
The connecting method of the circular terminal is
shown in the Fig. Remove the screw, connect it to the
terminal tier after inserting it through the ring at the
end of the lead and then tighten it.
2. Connecting straight terminals:
The connection method for circular terminals is shown
in the Fig. Loosen the screw before inserting the line
terminal into the terminal tier, tighten the screw and
confirm that it has been clamped by pulling the line
gently.
Pressing connecting line:
After line connection is completed, press the
connecting line with clips that should be pressed on
the protective sleeve of the connecting line.
correct
pressing
13
40VD024-054S-7S-QEE
12.7
6.35
Mounting Torque
6.35 11.8~13.7N.m
9.52 32.7~39.9N.m
12.7 49.O~53.9N.m
15.88 78.4~98.ON.m
19.O5 97.2~118.6N.m
Connecting
circular terminals:
terminal tier
pressing clip
15.88
9.52
wrong
pressing