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Connecting Electrical Connections; Setting Addresses; Sensing Room Temperature With The Built-In Sensor In A Remote Controller - Mitsubishi Electric CITY MULTI PDFY-P-VM-A Series Installatiehandleiding

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  • DUTCH, pagina 44
Note:
Ensure that the wiring is not pinched when fitting the terminal box cover.
Pinching the wiring may cut it.
Caution:
Install wiring so that it is not tight and under tension. Wiring under tension
may break, or overheat and burn.
•
Fix power source wiring to control box by using buffer bushing for tensile force.
(PG connection or the like.) Connect transmission wiring to transmission ter-
minal block through the knockout hole of control box using ordinary bushing.
•
After wiring is complete, make sure again that there is no slack on the connec-
tions, and attach the cover onto the control box in the reverse order removal.
Caution:
Wire the power supply so that no tension is imparted. Otherwise disconnec-
tion, heating or fire result.

8.3. Connecting electrical connections

(Be sure to prevent terminal screws from loosening.)
1. Remove 2 screws which secures the terminal bed box cover using a screw-
driver.
[Fig. 8.3.1] (P.4)
A Cover
2. As shown at 2, wire the power supply, transmission cable and remote control-
ler. There is no need to remove the terminal bed box.
[Fig. 8.3.2] (P.4)
C Terminal bed for transmission cable
D Transmission cable
(To terminal bed for remote controller, indoor unit and BC controller)
E To single-phase power supply
G To terminal bed for outdoor transmission cable
(Use shielding earth cable
H Non-polarity
J DC 24 to 30 V
•
Fix power source wiring to control box by using buffer bushing for tensile force.
(PG connection or the like.) Connect transmission wiring to transmission ter-
minal bed through the knockout hole of control box using ordinary bushing.
B Cover securing screw (2 places)
F Terminal bed for power supply
on outdoor unit side.)
I Network remote controller
3. After wiring is complete, make sure again that there is no slack on the connec-
tions, and attach the cover onto the control box in the reverse order of removal.
Caution:
Wire the power supply so that no tension is imparted. Otherwise disconnec-
tion, heating or fire may result.

8.4. Setting addresses

(Be sure to operate with the main power turned OFF.)
[Fig. 8.4.1] (P.4)
<Address board>
•
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 1 to 9) at "0", and match
SW11(for over 10) with "3".
2 How to set branch numbers (Series R2 only)
Match the indoor unit's refrigerant pipe with the BC controller's end con-
nection number. Remain 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 240 V side when the power supply is 230 and 240 volts.
•
When the power supply is 220 volts, set SW5 to 220 V side.
8.5. 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 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 air flow at a time when the heating
thermometer is OFF.
11

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