Mitsubishi Electric CITY MULTI PUMY-P112VKM2 Manuel D'installation page 13

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<PUMY-P·VKM>
L N
B1 B2
M1
M2
TB1
TB1B
TB3
B
C
A
<PUMY-P·YKM>
L1 L2 L3 N
M1
B1 B2
TB1B
TB1
B
C
A
A Power source
B Power supply for branch box
C Screw on the electrical component box
D Transmission line
1
1. Wiring transmission cables
Kind of remote control cable
Shielding wire CVVS, CPEVS or MVVS
Cable diameter
0.5 to 1.25 mm
When 10 m is exceeded, use cable with the same
Remarks
3. MA Remote control cables
Kind of remote control cable
Cable diameter
Remarks
* Connected with simple remote controller.
a. Always use shielded wire when making connections between the outdoor unit (OC) and the indoor unit (IC), as well for all OC-OC, and IC-IC wiring intervals.
and terminal S on the transmission cable terminal block of the indoor unit (IC).
c. Connect terminals 1 (M1) and 2 (M2) on the transmission cable terminal block of the indoor unit (IC) that has the most recent address within the same group to the terminal
block on the remote controller (RC).
d. Connect together terminals M1, M2 and terminal S on the terminal block for centralized control (TB7) for the outdoor unit (OC).
Connect shield ground of the indoor units transmission line to the shield (S) terminal of (TB3) and also connect (S) terminal to the screw (E or F) using attached lead
f.
wire.
Connect shield ground of the line between outdoor units and the centralized control system transmission line to the shield (S) terminal of (TB7).
g. Set the address setting switch as follows.
Range
IC (Main)
01 to 50
IC (Sub)
01 to 50
51 to 100
101 to 150
151 to 200
h. The group setting operations among the multiple indoor units is done by the remote controller (RC) after the electrical power has been turned on.
i.
When connecting a PWFY unit
For details, refer to the installation manual for the PWFY unit.
E
S
M1
M2
S
F
TB7
D
E
M2
S
M1
M2
S
F
TB3
TB7
D
E Screw on the electrical component box
F Screw on the electrical component box
2
2
Sheathed 2-core cable (unshielded) CVV
0.3 to 1.25 mm
2
(0.75 to 1.25 mm
2
)*
Within 200 m
be in sequence with the IC (Main)
* The address automatically becomes "100" if it is set as "01 - 50".
Set at an IC (Main) address within the same group plus 100
Set at an IC (Main) address within the same group plus 150
1. Connect the indoor unit transmission line to transmission terminal block (TB3), or
connect the wiring between outdoor units or the wiring with the centralized control
system to the centralized control terminal block (TB7).
When using shielded wiring, connect shield ground of the indoor unit transmission
line to the screw (E or F) and connect shield ground of the line between outdoor
units and the centralized control system transmission line to the shield (S) terminal
of the centralized control terminal block (TB7) shield (S) terminal. In addition, in
system should also be connected to the screw (E or F) using attached lead wire.
2. The terminal bed (TB1B) is for supplying power to the branch box (220
VAC. max 6 A).
2
Symbol
Outdoor unit controller
OC
M-IC
Indoor unit controller
A-IC
Branch box
Remote controller
RC
as an indoor unit's capacity or each unit's equivalent power consumption.
Setting Method
Allowable number of controllers
1 to 9 units per 1 OC
1 to 10 units per 1 OC
1 to 12 units per 1 OC
0 to 2 units per 1 OC
Maximum of 12 controllers for
1 OC (Can not be connected
if Branch box is used.)
MA-RC
Maximum of 2 per group
240
~

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