Carrier 40VU007-7G-QEE Installations- Und Bedienungsanleitung Seite 19

Installation Procedures
Tubing permissible length and height difference
Please refer to the attached manual for outdoor units.
Tubing materials and specifications
Please refer to the attached manual for outdoor units.
Model
Gas pipe
Tubing Size (mm)
Liquid pipe
Tubing Material
Refrigerant filling amount
Add the refrigerant according to the installation instruction for outdoor units. The addition of the R410A refrigerant
must be performed with a measure gage to ensure the specified amount is added. Compressor failure can be
caused by filling too much or too little refrigerant.
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.
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.
Vacuumizing
Vacuumize from the stop valve of outdoor units with
vaccum pump. Refrigerant sealed in indoor machine
is not allowed to use for vaccumization.
Open All Valves
Open all the valves of outdoor units. [NB: oil balancing
stop valve must be shut up completely when only
connected one main Unit].
Check for Air Leakage
Check if there is any leakage at the connecting part
and bonnet with hydrophone or soapsuds.
40VU007~0092 -7G-QEE
Ø9.52
Ø6.35
Phosphor deoxy bronze seamless pipe (TP2) for air conditioner
Outer Diameter of
40VU012~-0182 -7G-QEE
Ø12.7
Ø6.35
Mounting Torque
Tubing (mm)
Ø6.35 11.8(1.2kgf-m)
Ø9.52 24.5(2.5kgf-m)
Ø12.70 49.0(5.0kgf-m)
Ø15.88 78.4(8.0kgf-m)
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.
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.
correct
pressing
13
Increase Mounting
(N-m) 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:
terminal tier
pressing
clip
wrong
pressing