Mitsubishi Electric CITY MULTI PLFY-P NAMU-E Series Installation Manual page 8

6. Electrical work
B
A
D
C
H,I
Fig. 6-5
Address board
SW5
220V 240V
(208V) (230V)
SW1
ON
OFF
1 2 3 4 5 6 7 8 9 10
SW12 SW11
0 0
Fig. 6-6
8
F
E
B
G
A
SWA SWB
3 2
2 3
CN43
1 4
CN82
SW14
SWC
2
0
1
6.3. Wiring connection (Fig. 6-5)
1. Remove the holder and intake sensor.
2. Remove two service panels.
3. Wire the power cable and control cable separately through the respective wiring
entries given in the diagram.
• Do not allow slackening of the terminal screws
• Always install earch.
• Considering the case of suspending the electrical box during services, leave the
wiring some allowance. (Approx. 2 to 4 in.)
A Entry for control cable
B Entry for power cable
(Trade size of conduit: 1/2")
C Service panel for indoor controller switch setting
D Service panel for electrical wiring
E Terminal block for power supply
F Terminal block for transmission line and M-NET remote controller
G Terminal block for MA remote controller
H Intake sensor
I Holder
s Fix power source wiring to control box using buffer bushing for tensile force.
(PG connection or the like.)
6.4. Setting addresses (Fig. 6-6)
(Be sure to operate with the main power turned OFF.)
• There are two types of rotary switch setting available: setting addresses 1 to 9 and
over 10, and setting branch numbers.
1 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".
2 How to set branch numbers (Series R2 only)
Match the indoor unit's refrigerant pipe with the BC controller's end connection
number. Remain SW14 other than 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 technical data.
Note:
Please set the switch SW5 according to the power supply voltage.
• Set SW5 to 230 V side when the power supply is 230 volts.
• When the power supply is 208 volts, set SW5 to 208 V side.
6.5. Switch setting for high ceiling or at the time of
changing the number air outlets
In this unit, the volume and speed of airflow can be adjusted by setting the switches
(SWA and SWB) on the indoor controller board.
I PLFY-P12/P15/P18/P24
SWA 1
SWB Standard
4 4 direction 8.9 ft (2.7 m)
3 3 direction 9.8 ft (3.0 m)
2 2 direction 10.8 ft (3.3 m)
I PLFY-P30, P36
SWA 1
SWB Standard
4 4 direction 10.5 ft (3.2 m)
3 3 direction 11.8 ft (3.6 m)
2 2 direction 13.1 ft (4.0 m)
SWA: Setting the ceiling height (set to standard at the factory)
Set according to the ceiling height of the room where the unit will be installed.
SWB: Setting the number of air outlets (set to 4 directions at the factory)
Set according to the number of air outlets in the unit panel.
SWC: Items sold separately (set to standard at the factory)
Set to option when items sold separately, such as a high-efficiency filter ele-
ment, are installed.
6.6. Sensing room temperature with the built-in sensor
in a remote controller
If you want to sense room temperature with the built-in sensor in a remote controller,
set SW1-1 on the control board to "ON". The setting of SW1-7 and SW1-8 as neces-
sary also makes it possible to adjust the air flow at a time when the heating thermom-
eter is OFF.
2 3
High ceiling 1 High ceiling 2
9.8 ft (3.0 m) 11.5 ft (3.5 m)
10.8 ft (3.3 m) 11.5 ft (3.5 m)
11.5 ft (3.5 m) –
2 3
High ceiling 1 High ceiling 2
11.8 ft (3.6 m) 13.8 ft (4.2 m)
13.1 ft (4.0 m) 13.8 ft (4.2 m)
13.8 ft (4.2 m) –