Mitsubishi Electric CITY MULTI PUMY-SP140YKM Installation Manual page 16

6. Electrical work
6.3. Wiring transmission cables
1 Types of control cables
1. Wiring transmission cables
• Types of transmission cables: Shielding wire CVVS, CPEVS or MVVS
• Cable diameter: More than 1.25 mm
• Maximum wiring length: Within 200 m
2. M-NET Remote control 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
specifications as transmission line wiring cables.
* Connected with simple remote controller.
3. MA Remote control cables
Kind of remote control cable
Cable diameter
Remarks
* Connected with simple remote controller.
Example of a group operation system with multiple outdoor units (Shielding wires and address setting are necessary.)
<Examples of Transmission Cable Wiring>
■ Refer to Fig. 6-6 from Fig. 6-2.
<Wiring Method and Address Settings>
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.
b. Use feed wiring to connect terminals M1 and M2 and the ground terminal on the transmission cable terminal block (TB3) of each outdoor unit (OC) to terminals M1, M2
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 centralized control (TB7) for the outdoor unit (OC).
e. The jumper connector CN41 on the control panel does not change.
f. 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 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.
Unit Range
M-IC (Main) 01 to 50
M-IC (Sub) 01 to 50
Outdoor unit 51 to 100
M-NET RC (Main) *1 101 to 150
M-NET RC (Sub) *1 151 to 200
MA RC
*1 An ME remote controller cannot be connected to a system that contains a branch box.
h. The group setting operations among the multiple indoor units is done by the remote controller (M-NET RC) after the electrical power has been turned on.
<Permissible Lengths>
M-NET Remote controller
1
• Max length via outdoor units: L +L
1 2
• Max transmission cable length: L and L
1
• Remote controller cable length:r , r
1
If the length exceeds 10 m, use a 1.25 mm² shielded wire. The length of this section (L
maximum length and overall length.
MA Remote controller
2
• Max length via outdoor unit (M-NET cable): L
• Max transmission cable length (M-NET cable): L
• Remote controller cable length: c
1
16
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2
(0.75 to 1.25 mm )*
2 2
Sheathed 2-core cable (unshielded) CVV
0.3 to 1.25 mm (0.75 to 1.25 mm )*
2 2
Within 200 m
Use the most recent address within the same group of indoor units
Use an address, other than that of the IC (Main) from among the units within the same group of indoor units. This must be
in sequence with the IC (Main)
Use the most recent address of all the indoor units plus 50
* 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
— Unnecessary address setting (Necessary main/sub setting)
+L +L and L +L +L +L and L +L +L
3 4 1 2 3 5 1 2
+L and L +L and L +L and L
3 4 3 5 2 6 7
, r +r , r [ 10 m (0.5 to 1.25 mm²)
2 2 3 4
+L +L +L and L +L +L +L
1 2 3 4 1 2 6
and L +L and L +L and L
1 3 4 2 6
and c +c +c and c +c +c +c
1 2 3 1 2 3
2 Wiring examples
• Controller name, symbol and allowable number of controllers.
Name
Outdoor unit controller
Indoor unit controller
Branch box
Remote controller
Note:
*1. The number of connectable units may be limited by some conditions such
as an indoor unit's capacity or each unit's equivalent power consumption.
*2. Don't use the Lossnay controller (PZ-61DR-E, PZ-43SMF-E, PZ-52SF-E,
PZ-60DR-E).
*3. An ME remote controller can not be connected to a system that contains
a branch box.
Setting Method
+L [ 500 m (1.25 mm² or more)
6 7
[ 200 m (1.25 mm² or more)
[ 500 m (1.25 mm² or more)
7
[ 200 m (1.25 mm² or more)
7
[ 200 m (0.3 to 1.25 mm²)
4
Symbol Allowable number of controllers
OC –
PUMY-SP112 1 to 9 units per 1 OC *1
M-IC PUMY-SP125 1 to 10 units per 1 OC *1
PUMY-SP140 1 to 12 units per 1 OC *1
PUMY-SP112
A-IC PUMY-SP125 2 to 8 units per 1 OC *1
PUMY-SP140
– – 0 to 2 units per 1 OC
Maximum of 12 control-
lers for 1 OC (Can not be
M-NET RC *2, *3
RC connected if Branch box
is used.)
MA-RC Maximum of 2 per group
) should be included in the calculation of the
8