Mitsubishi Electric CITY MULTI PUHY-YMC Installation Manual page 32

C. Example of a system using the transmission booster (Combination of systems A - C)
OS OC
TB3
TB3
M1 M2 S M1 M2
a. Address settings are the same as for wiring connection examples A and B.
b. Let the number of indoor units and remote control units connected be within the limit for the number of units shown in the following table for
the total of the number of units connected between the variable capacity unit (OC) and the transmission booster (RP) N
units connected after the transmission booster (RP) N
c. Connect the power supply ground to the transmission booster (RP) securely.
Connect the transmission lines of the outdoor unit side to terminals A and B of transmission line terminal block 1 (TB2) of the transmission
booster (RP).
Connect the transmission lines of the expansion indoor unit side to terminals A and B of the of transmission line terminal block 2 (TB3) of the
transmission booster (RP).
(*1)
Capability of the
connected indoor units
*1 If even one unit that is higher than 200 exists in the cooling system, the maximum capacity will be "200 or higher".
Indoor system maximum remote wiring length: 1 L
•
• Remote control wiring length :
OS OC
TB3 TB3
M1 M2 S M1 M2
• Do not mistake the connection locations of transmission booster (RP) transmission line terminal block 1 (TB2) and transmission line termi-
nal block 2 (TB3). (Operation will not be normal in such a case.)
• Do not connect the S terminals of transmission line terminal block 1 (TB2) and transmission line terminal block 2 (TB3) of the transmission
booster (RP) together.
32
L L
1 2
IC
TB5 TB13
M1M2 S 1 2 3 M1M2 S
2
Remote controller type
Number of connected indoor units that can be
connected without a RP.
200 or lower
200 or higher
The number of indoor units and the total number of remote controllers is displayed within the parenthesis ( ).
+L
1
2 L
+L
1
3 L
+L
1
4 L
+L
6
r , r
10 m (0.5 to 0.75 mm
1 2 =
If the length exceeds 10 m, use 1.25 mm
as within the total extended length and the longest remote length.
IC
TB5 TB13
M1M2 S 1 2 3
L
3
IC RP
TB2 TB3
A B S A B S
TB5 TB13
1 2 3
TB6
RC
N
1
.
Prior to Ver. E
2
+L +L +L 200 m (1.25 mm
2 3 5 6 =
2
+L +L +L 200 m (1.25 mm
2 3 5 7 =
2
+L 200 m (1.25 mm )
2 4 =
+L +L , L +L +L +L 200 m (1.25 mm
5 3 4 4 3 5 7 =
2
)
2 shielded cable and calculate the length of that portion (L
IC RP
TB2
A B S A B
TB5 TB13
M1M2 S 1 2 3
TB6
RC
L L
5 6
Ground
IC
TB5 TB13
M1M2 S 1 2 3
TB6
RC
1
Remote controller PAR-F 25MA
After Ver. F
16 (32) 20 (40)
16 (32) 16 (32)
)
)
2
)
Ground
IC
TB3
S
TB5 TB13
M1M2 S 1 2 3
TB6
RC
IC
TB5 TB13
M1M2 S 1 2 3
N
2
and the number of
and L )
4 7
IC
TB5 TB13
M1M2 S 1 2 3