Mitsubishi Electric CITY MULTI PUHY-YMC Installation Manual page 29

Permissible length
Length of the wire to the most remote
indoor unit in the system (1.25 mm
L + L , L + L , L + L 200 m
1 2 2 3 3 1 =
Remote control wire length
1 In the case of 0.5 - 0.75 mm
r , r
10 m
1 2 =
2 If the length exceeds 10 m, use
1.25 mm 2 wire and let the length
be within the length of the wire to
the most remote indoor unit in the
system. (L ).
3
Same as above.
Same as above.
Note:
1. If there is one or more 200 or higher indoor units within the same cooling system, and the number of indoor units exceeds 16 units, a
transmission booster is necessary. (When a "PAR-F25MA Ver. F or subsequent version of remote control is used)
2. If there is not even one 200 or higher indoor unit within the same cooling system, and the number of indoor units exceeds 20 units, a
transmission booster is necessary. (When a "PAR-F25MA Ver. F or subsequent version of remote control is used)
* For details, see wire connection example C.
2 )
2 wire,
OS
(52)
TB3 TB3
M1M2
M1 M2 S
Shielded cable
• Let the address of the sub remote controller be the indoor unit (IC) address + 150. In this case, the address would be 152.
• More than 3 remote control (RC) units cannot be connected to one indoor unit.
OS
(52)
TB3 TB3
M1 M2 S M1M2
Shielded cable
• The remote controller address is the indoor unit main address + 100. In this case, it is 101.
Prohibited items
OC
IC
(51)
(01)
TB5 TB13
TB7
M1M2 S 1 2 3
M1M2 S
TB6 TB6
(101) (151)
RC RC
(Main remote (Sub remote
controller) controller)
OC
IC (Main)
(51)
(01)
TB5 TB13
TB7
M1M2 S M1M2 S 1 2 3
TB6
(102)
RC
IC
(02)
TB5 TB13
M1M2 S 1 2 3
TB6 TB6
(102) (103) (152)
RC RC
(Main remote (Sub remote
controller) controller)
IC (Sub)
(02)
TB5 TB13
M1M2 S 1 2 3
(101)
TB6
(104)
RC
29