Mitsubishi Electric CITY MULTI PLFY-P20VBM-E Manuel D'installation page 8

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4. Electrical work
M1 M2
M1 M2
S
1
2
TB3
TB5
M1 M2
M1 M2
TB3
TB5
CN90
Pair No.
M1 M2
M1 M2
0
TB3
TB5
9
Pair No.
0
Fig. 4-3
SW1
ON
OFF
1 2 3 4 5 6 7 8 9 10
SW12
(10ths DIGIT)
(1s DIGIT)
ADDRESS
Fig. 4-4
4.6. Switch setting for high ceiling or at the time of
changing the number of air outlets (Fig. 4-4)
With this unit, the air flow rate and fan speed can be adjusted by setting the SWA
and SWB (slide switch). Select a suitable setting from the table below according to
the installation location.
* Make sure the SWA and SWB switch are set, otherwise problems such as not
getting cool/warm may occur.
■ PLFY-P20-P80VBM
SWA
Silent
SWB
4 direction
2.5 m
3 direction
2.7 m
2 direction
3.0 m
4.7. Sensing room temperature with the built-in sen-
sor in a remote controller (Fig. 4-4)
If you want to sense room temperature with the built-in sensor in a remote control-
ler, set SW1-1 on the control board to "ON". The setting of SW1-7 and SW1-8 as
necessary also makes it possible to adjust the airflow at a time when the heating
thermometer is OFF.
8
M1 M2
S
1
2
TB15 TB5
TB15
S
M1 M2
S
TB5
CN90
Pair No.
S
1
2
M1 M2
S
1
2
0
TB15
TB5
9
SWA
SWB
3
2
2
3
CN43
4
1
SW11
CN82
SW14
SWC
. /
.
(BRANCH No.)
Standard
High ceiling
2.7 m
3.5 m
3.0 m
3.5 m
3.3 m
3.5 m
4.4. Connecting remote controller, indoor and outdoor
transmission cables (Fig. 4-3)
• Connect indoor unit TB5 and outdoor unit TB3. (Non-polarized 2-wire)
The "S" on indoor unit TB5 is a shielding wire connection. For specifications
about the connecting cables, refer to the outdoor unit installation manual.
• Install a remote controller following the manual supplied with the remote control-
ler.
• Connect the remote controller's transmission cable within 10 m using a 0.75 mm
core cable. If the distance is more than 10 m, use a 1.25 mm
MA Remote controller
• Connect the "1" and "2" on indoor unit TB15 to a MA remote controller. (Non-
polarized 2-wire)
• DC 9 to 13 V between 1 and 2 (MA remote controller)
M-NET Remote controller
• Connect the "M1" and "M2" on indoor unit TB5 to a M-NET remote controller.
(Non-polarized 2-wire)
• DC 24 to 30 V between M1 and M2 (M-NET remote controller)
Wireless remote controller(When installing wireless signal receiver)
• Connect the wire of wireless signal receiver (9-pole cable) to CN90 of indoor con-
troller board.
• When more than two units are run under group control using wireless remote
controller, connect TB15 each with the same number.
TB15
• To chang Pair No. setting, refer to installation manual attached to wireless remote
controller. (In initial setting of indoor unit and wireless remote controller, Pair No.
is 0.)
Terminal block for indoor transmission cable
Terminal block for outdoor transmission cable(M1(A), M2(B),
Remote controller
wireless signal receiver
wireless remote controller
4.5. Setting addresses (Fig. 4-4)
(Be sure to operate with the main power turned OFF.)
• There are 2 types of rotary switch setting available: setting addresses 1 to 9 and
over 10, and setting branch numbers.
How to set addresses
Example: If Address is "3", remain SW12 (for over 10) at "0", and match
SW11(for 1 to 9) with "3".
How to set branch numbers SW14 (Series R2 only)
Match the indoor unit's refrigerant pipe with the BC controller's end connection
number.
Remain other than series R2 at "0".
• The rotary switches are all set to "0" when shipped from the factory. These
switches can be used to set unit addresses and branch numbers at will.
• The determination of indoor unit addresses varies with the system at site. Set
them referring to the Data Book.
Address board
■ PLFY-P100,P125VBM
SWA
SWB
4 direction
3 direction
2 direction
2
junction cable.
(S))
Silent
Standard
2.7 m
3.2 m
3.0 m
3.6 m
3.3 m
4.0 m
2
High ceiling
4.5 m
4.5 m
4.5 m

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