25
English
4
Fix with a clamp.
Fix by passing the clamp through the hook on the back.
CAUTION
• Be sure to use crimp-style terminal with insulating sleeves for con-
nections. (See the figure below.)
Crimp-style terminal
Insulating sleeve
Power wire
•
For wiring, use the designated power wire and connect firmly, then
secure to prevent outside pressure being exerted on the terminal
board.
• Use an appropriate screwdriver for tightening the terminal screws.
A screwdriver with a small head will strip the head and make proper
tightening impossible.
• Over-tightening the terminal screws may break them.
See the following table for the tightening torque of the terminal
screws.
Screw size
Tightening torque
M8 Power terminal
4.07-5.38 ft
•
lbf (5.5-7.3 N
•
m)
M8 Ground terminal
7.15-8.63 ft
•
lbf (9.7-11.7 N
•
m)
• When pulling the ground wire out, wire it so that it comes through
the cut out section of the cup washer. (See the figure below.) An
improper ground connection may prevent a good ground from being
achieved.
Crimp-style terminal
Cut out section
Cup washer
• When 2 wires are connected to a single terminal, connect them so
that the rear sides of the crimp contacts face each other. Also, make
sure the thinner wire is on top, securing the 2 wires simultaneously
to the resin hook using the included clamp.
Crimp-style
terminal
Wire : narrow
Terminal
block
Wire : thick
Resin hook
9.6. Procedure for Wiring Inside Units
•
Referring to the figure below, secure and wire the power and trans
-
mission wiring using the included clamp.
• Wire so that the ground wiring does not come into contact with the
compressor lead wiring.
If they touch, this may have an adverse effect on other devices.
• The transmission wiring must be at least 1-15/16 in. (50 mm) away
from the power wiring.
• Route wiring so that it does not come into contact with the high-
temperature pipes (indicated by the hatching in the figure below).
1
2
3
4
5
6
1
Power/ground wires
4
Clamp (accessory)
2
Clear over 1-15/16 in. (50 mm)
5
Power wiring
3
Transmission wiring
6
Ground wire
Precautions when cutting the slit holes
• Open the slit holes with a cutting nippers or similar tool.
• Open an appropriate hole as needed.
• After cutting the slit holes, it is recommended to remove burrs in the
slit holes and paint the edges and areas around the edges using the
repair paint to prevent rusting.
• Power line: Open a slit hole and connect it using a conduit.
Choose an appropriate slit hole for conduit size suitable for the
power and ground line to be used.
• Transmission line: Connect it using a conduit in the slit hole.
• When passing electrical wiring through the slit holes, protect the wiring
with a conduit or bushings, making sure not to damage the wiring.
• Block all gaps in the holes for passing out piping and wiring using
sealing material.
Slit hole (Transmission line)
φ
1-1/16 in. (27 mm)
Burr
Slit hole (Power line)
φ
2-9/16 in. (65 mm)
φ
3-1/8 in. (80 mm)
NOTE
After wiring work is completed, check to make sure there are no loose
connections among the electrical parts in the control box.
01_EN_Main_VRV6_HP_IM.indd 25
01_EN_Main_VRV6_HP_IM.indd 25
2022/11/17 16:07:33
2022/11/17 16:07:33
