Selecting The Static Pressure; Setting Addresses; Sensing Room Temperature With The Built-In Sensor In A Remote Controller - Mitsubishi Electric City Multi PEFY-P-VMM-E Manuel D'installation

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.

9.4. Selecting the static pressure

The external static pressure can be changed over as required. For the selection of
the static pressure, insert an attachment between the connector of the motor lead
wire and the control box. (For only PEFY-P100~140)
The relationship between the attachment and the external static pressure is shown
below.
Attachment (Red) ....... External static pressure 130 Pa
Attachment (White) .... External static pressure 50 Pa
In the case of PEFY-P20~80, set the static pressure with the SWA switch. For the
details, refer to the instruction manual which is affixed to the control box cover of
the main unit.

9.5. Setting addresses

(Be sure to operate with the main power turned OFF.)
Address board
[Fig. 9.5.1] (P.3) 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 over 10) at "0", and match
SW11 (for 1 to 9) with "3".
2 How to set branch numbers SW14 (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.
Notes:
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.
9.6. 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 control-
ler, set SW1-1 on the control board to "ON".
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