Carrier 40VC009F-7S-QEE Installation And Owner's Manual page 20

Installation Procedures
Tubing permissible length and height difference
Please refer to the attached manual for outdoorunits.
Tubing permissible length and height difference
Model
Tubing Size (mm) Gas pipe
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 unittubing.
• For mounting torque, refer to the table on the right.
wrench
Cutting and Enlarging
Cutting or enlarging pipes should be proceeded by
installation personnel according to 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 use for vacuumization.
Open All Valves
Open all the valves of the outdoor units. (NB: the oil
balancing stop valve must be shut off completely when
connected to a main unit.)
Checkup for Air Leakage
Check if there is any leakage at the connecting part
and bonnet with hydrophone or soapsuds.
40VC009F-7S-QEE
Ø9.52
Ø6.35
Phosphor deoxy bronze seamless pipe (TP2) for air conditioner
Outer Diameter of Tubing
(mm)
Ø6.35
Ø9.52
Ø12.7
Ø15.88
correct
pressing
13
40VC012~018F-7S-QEE
Ø12.7
Ø6.35
Mounting Torque
(N-m)
11.8(1.2kgf-m)
24.5(2.5kgf-m)
49.0(5.0kgf-m)
78.4(8.0kgf-m)
Connecting
1. 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.
3. 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
pressing clip
40VC024~054F-7S-QEE
Ø15.88
Ø9.52
Increase Mounting
Torque (N-m)
13.7(1.4kgf-m)
29.4(3.0kgf-m)
53.9(5.5kgf-m)
98.0(10.0kgf-m)
Connecting
circular
terminals
wrong
pressing