Carrier 40VC009F-7S-QEE, Инструкция по установке и эксплуатации, Страница: 20 / 154

Installation Procedures
Tubing permissible length and height difference
Refrigerant filling amount
Tubing permissible length and height difference
Please refer to the attached manual for outdoorunits.
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.
Model 40VC009F-7S-QEE 40VC012~018F-7S-QEE 40VC024~054F-7S-QEE
Tubing Size (mm) Gas pipe Ø9.52 Ø12.7 Ø15.88
Liquid pipe Ø6.35 Ø6.35 Ø9.52
Tubing Material Phosphor deoxy bronze seamless pipe (TP2) for air conditioner
wrench
Outer Diameter of Tubing
(mm)
Mounting Torque
(N-m)
Increase Mounting
Torque (N-m)
Ø6.35 11.8(1.2kgf-m) 13.7(1.4kgf-m)
Ø9.52 24.5(2.5kgf-m) 29.4(3.0kgf-m)
Ø12.7 49.0(5.0kgf-m) 53.9(5.5kgf-m)
Ø15.88 78.4(8.0kgf-m) 98.0(10.0kgf-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.
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 flare 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.
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.)
Check if there is any leakage at the connecting part
and bonnet with hydrophone or soapsuds.
terminal tier
pressing clip
wrong
pressing
correct
pressing
Connecting
circular
terminals
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