Mitsubishi Electric City Multi PUMY-P-NHMU Serie Manual De Instalación página 9

L1 L2 GR M1 M2 S M1 M2 S
TB3 TB7
A : Power source
B : Transmission line
C : Screw on the electrical component box
D : Screw on the electrical component box
1
1. Wiring transmission cables
Kind of remote control cable Shielding wire (2-core) CVVS, CPEVS or MVVS
Cable diameter 0.5 to 1.25 mm
Remarks
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 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 central control (TB7) for the outdoor unit (OC).
f. Connect the terminal S on the terminal block for central control for the power supply unit to the ground terminal (
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.
1
+L
1
1
1
calculation of the maximum length and overall length.
2
2
2
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
+L +L and L +L +L +L and L +L +L
2 3 4 1 2 3 5 1 2
and L +L and L +L and L and L +L
3 4 3 5 6 2
, , + ,
2 2 3 4
+L +L +L and L +L +L +L
1 2 3 4 1 2 6
and L +L and L and L
1 3 4 6
and m +m +m and m +m +m +m
1 1 2 3 1 2 3 4
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 earth screw (C or D) and connect shield ground of the line between
outdoor units and the central control system transmission line to the shield (S)
terminal of the centralized control terminal block (TB7) shield (S) terminal. In
centralized control system should also be connected to the screw (C or D) using
attached lead wires.
supply and transmission wires through the appropriate knock-out holes, then remove
the knock-out piece from the bottom of the terminal box and connect the wires.
3. Fix power source wiring to terminal box by using buffer bushing for tensile force
(PG connection or the like).
3. MA Remote control cables
Kind of remote control cable
Cable diameter
2
Outdoor unit controller
Indoor unit controller
Remote controller
Setting Method
+L 2
6 7
and L 2
6 7
2
2
2
7
+L and L
2 6 7
2
2-core cable (unshielded)
0.3 mm 2 (AWG22) to 1.25 mm 2 (AWG16)
Symbol Allowable number of controllers
OC –
IC 2 to 8 controllers for 1 OC
RC
Maximum of 16 controllers for 1 OC
MA Maximum of 2 per group
) in the electrical component box.
) should be included in the
8
2 or more)
-