Mitsubishi Electric CITY MULTI PUHY-YMC Installation Manual page 28

A. Example of the use of the shielded cable in a single coolant system (Setting of addresses is necessary)
Example of control line wiring
1) Standard
OS OC
(52) (51)
TB3 TB3 TB7
M1M2
M1 M2 S M1M2 S
Shielded cable
• One remote control unit for each indoor unit
Within ( ): Address
2) 2 Remote control operation
OS OC
(52) (51)
TB3 TB3 TB7
M1 M2 S M1M2 M1M2 S
Shielded cable
• 2 remote control units for 1 indoor
unit.
3) Group operation
OS OC
(52) (51)
TB3 TB3 TB7
M1 M2 S M1M2 M1M2 S
Shielded cable
• Operation of multiple indoor units with 1 remote controller.
1) ~ 3) above can be combined.
28
L L
1 2
IC
(01)
TB5 TB13 TB5
M1M2 S 1 2 3 M1M2 S
TB6
(102)
TB6
RC
(101)
RC
IC
(01)
TB5 TB13 TB5
M1M2 S 1 2 3 M1M2 S
TB6 TB6 TB6
(101) (151) (102)
RC RC RC
(Main remote (Sub remote (Main remote
controller) controller) controller)
IC (Main)
(01)
TB5 TB13 TB5
M1M2 S 1 2 3 M1M2 S
TB6
(101)
RC
Wiring method, address setting
a. Run the wire to terminals M1 and M2 the variable capacity unit (OC)
transmission line terminal block (TB3) and to terminals M1 and M2 on
the constant capacity unit (OS) transmission line terminal block (TB3)
as well as to the terminals M1 and M2 of the transmission line terminal
block (TB5) of each indoor unit (IC). (Two-wire, no polarity)
Also, run the shielded ground wire to the ground terminal
IC
variable capacity unit, the S terminal of the constant capacity unit (TB3),
and the S terminal of each indoor unit (TB5).
(02)
b. Connect the wires to terminals M1 and M2 of the transmission line
terminal block (TB5) in each indoor unit (IC) and connect them to the
TB13
1 2 3
remote control (RC) terminal block (TB6).
c. Set the address setting switch as shown in the following table.
Unit
Indoor unit
Remote control
Variable capacity
unit
Constant capacity
unit
Note 1 If the address of the variable capacity unit or the constant capac-
ity unit is set at 100, set one of the address switches at 01 ~ 50.
Note 2 It is not necessary to set the 100's position in the remote control
unit.
a. Same as above.
b. Same as above.
c. Set the address setting switch as shown in the fol-
IC
lowing table.
(02)
Unit
TB13 Indoor unit
1 2 3
Main remote
controller
Sub remote
controller
Variable capacity
unit
TB6
(152)
Constant capacity
unit
RC
(Sub remote
Notes 1, 2. Same as above.
controller)
a. Same as above.
b. Connect terminals A and B (M1 and M2) of the trans-
mission line terminal block (TB5) of the indoor unit
(IC Main) with the lowest address of all the indoor
units (IC) in the same group and the terminals on
IC (Sub)
the remote control (RC) terminal block (TB6).
c. Set the address setting switch as shown in the fol-
(02) lowing table.
d. Within the same group, let the indoor unit (IC) which
TB13
1 2 3
functions the most be the IC (Main) unit.
Unit
IC (Main)
IC (Sub)
Main remote
controller
Sub remote
controller
Variable capacity
unit
Constant capacity
unit
Notes 1, 2. Same as above.
Range Setting method
01 to 50 —
101 to 150
Indoor unit address + 100
Note 2
The smallest address of
51 to 100
the indoor units + 50
Note 1
Variable capacity unit ad-
51 to 100
dress + 1
Note 1
Range Setting method
01 to 50 —
101 to 150
Indoor unit address + 100
Note 2
151 to 200
Indoor unit address + 150
Note 2
The smallest address of the
51 to 100
indoor units + 50
Note 1
Variable capacity unit ad-
51 to 100
dress + 1
Note 1
Range Setting method
Address of the indoor unit
with the smallest address of
01 to 50
all the indoor units in the
same group.
Address of any of the indoor
units except the address of
01 to 50 the IC (Main). Let the
number be in sequence with
that of the IC (Main)
Address of the IC (Main) in
101 to 150
the same group + 100
Note 2
Address of the IC (Main) in
151 to 200
Note 2 the same group + 150
The smallest address of the
51 to 100
Note 1 indoor units + 50
Variable capacity unit ad-
51 to 100
Note 1 dress + 1
of the