Caution; Wiring Transmission Cables - Mitsubishi Electric City Multi PHQY-P72ZLMU-A1 Installation Manual

Air-conditioners for building application
Table of Contents
11. Wiring

11.1. Caution

1
electric power company.
2
3 Provide designated grounding work to the heat source unit.
4
5
11.2. Control box and connecting position
of wiring
1 Heat source unit
and pushing it up, then pulling it out.
on the OC and OS (In the case that the heat source unit whose power
ground terminal (
Caution:
Note:
Make sure that the spring washers are parallel to the terminal block.
Make sure that the wires are securely fastened to the terminal screws.
Drive the screws straight down, and use caution not to damage the
screw heads.
Install the ring terminals back to back so that the screws can be driven
straight down.
Make an alignment mark with a permanent marker across the screw
head, washer, and terminal after tightening the screws.
6
poor transmitting and receiving will cause erroneous operations.
7
The system will not operate with improper connection.
8
9 Use the remote controller to set the groups.
[Fig. 11.2.1] (P.15)
A Power source
C Ground terminal
[Fig. 11.2.2] (P.15)
A Terminal block with loose screws
C Spring washers must be parallel to the terminal block.
[Fig. 11.2.3] (P.15)
A Power wires, transmission lines
C
E Install the ring terminals back to back.
[Fig. 11.2.4] (P.15)
A Cable strap
C
2 Conduit tube installation
When installing the conduit tube directly through the knockout holes, remove
burrs and protect the tube with masking tape.
animals entering the unit.

11.3. Wiring transmission cables

1 Types of control cables
1. Wiring transmission cables
Cable diameter: More than 1.25 mm
2. Remote control cables
ME Remote Controller
0.3 to 1.25 mm
Cable diameter
(0.75 to 1.25 mm
Remarks
transmission cables.
CVV: PVC insulated PVC sheathed control cable
MA Remote Controller
0.3 to 1.25 mm
Cable diameter
(0.75 to 1.25 mm
Remarks
B Transmission line
B Properly installed terminal block
B
D Make an alignment mark.
B Power source cable
2
2
2
2
2
33
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