Carrier XCT7 Installations- Und Bedienungsanleitung Seite 20

Installation Procedures
Tubing Materials & Specifications
Please refer to the attached manual for outdoor units.
Model
Tubing Size Gas pipe
(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 40VD012-018S-7S-QEE
9.52
6.35
Phosphor–deoxy-bronze seamless pipe (TP2) for air conditioner
12.7
6.35
Outer Diameter of Tubing (mm)
6.35
9.52
12.7
15.88
19.05
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.
terminal tier
correct
pressing
13
40VD024-054S-7S-QEE
15.88
9.52
Mounting Torque
11.8~13.7N.m
32.7~39.9N.m
49.0~53.9N.m
78.4~98.0N.m
97.2~118.6N.m
Connecting
circular terminals:
wrong
pressing
pressing clip