Setting Addresses; When Using Other Than The Internal Sensor Of The Unit To Detect The Room Temperature - Mitsubishi Electric PFAV-P250VM-E Manuel D'installation

[Fig. 7.3.3] (P.8)
Using the supplied temperature sensor
1
<Installing the temperature sensor using the supplied cable only>
2 <Extending the temperature sensor cable with a shield cable>
Using the supply air temperature sensor
3
Turn SW7-2 to ON.
A Remote controller cable (when one is connected) (non-polarized two-wire)
B Temperature sensor cable
D To three-phase power supply
F Cable that is supplied with the temperature sensor
G Temperature sensor extended with a shielded cable
H Supply air temperature sensor cable
<A> Fix the cables with the black clamps.
<B> To indoor/outdoor transmission cable terminal block
* Connect the shield of the cable to the earth terminal
<C> Connect the shield to the earth terminal.
<D> Use closed end connectors to connect the two cables.
<E> Supply air temperature sensor cable is bundled inside the control box.
<F> Connect to CN20

7.4. Setting addresses

(Be sure to operate with the main power turned OFF.)
1. An address must be set for this system. Furthermore, the address setting range differs depending on the unit.
2. When group operation will be performed, set the addresses according to the table below.
* Group operation means to operate multiple indoor units using one remote controller (or 2 remote controllers).
Unit or controller
Indoor unit Main/Sub
LOSSNAY/Outdoor air processing
unit
MA remote controller
Outdoor unit
Centralized
controller
System remote
controller
Schedule timer
(M-NET
System
compatible)
controller
ON/OFF remote
controller
Group remote
controller
LM adapter
Note 1: If an address is a duplicate of an indoor unit or outdoor unit of another refrigerant circuit system, set it to another address, which is within the setting range and is
not in use.
Note 2: To set the address of an outdoor unit to "100," set it as 50.
Note 3: The outdoor units OC and OS of the same refrigerant circuit system are differentiated automatically.
The order of OC and OS becomes from the one with the highest capacity. (If the capacity is the same, the order is from the one with the lowest address.)
Note 4: P750·P900-F model indoor units are equipped with two indoor controllers (control boards). Assign an address so that the No. 2 control board address equals the
No. 1 control board address plus 1. (Factory setting: No.1=01, No.2=02)
3. The address (SW 12 and 11) setting becomes a combination of the 10's digit (SW 12) and 1's digit (SW 11) as shown in the examples below.
Example: With the address "03," the tens digit (SW 12) is "0," and the ones digit (SW 11) is "3."
With the address "25," the tens digit (SW 12) is "2," and the ones digit (SW 11) is "5."
4. After setting an address, make sure you enter the address in the Address No. field on the product name plate with, for example, a permanent marker.

7.5. When using other than the internal sensor of the unit to detect the room temperature

• When the internal sensor of the remote controller will be used, set each of SW 1-1 and SW 3-8 to ON.
• Some types of remote controller do not have an internal remote sensor. In such a case, set the internal sensor of the unit to detect the room temperature.
• When using the internal sensor of the remote controller, attach the remote controller to a place where it is possible to detect room temperature.
• When using the supply air temperature to control the room temperature, the built-in sensor on the remote controller cannot be used.
C Earth terminal
E Indoor unit control box
of the outdoor unit.
Address
Mark setting
range
01 to 50
For the indoor units of the same group, set the lowest address for the indoor unit to be
IC Note 1
used as the main, and set consecutive numbers for the addresses of indoor units.
Note 4
01 to 50
LC Set any address after setting all of the indoor units.
Note 1
An address does not need to be set. (However, when operation is to be performed with two remote
MA
controllers, the main/sub selector settings need to be set.)
Set an address equivalent to the lowest indoor unit address in the same refrigerant
OC 51 to 100
circuit system + 50. Set consecutive numbers for the addresses of outdoor units in the
OS Note 2
same refrigerant circuit system. OC and OS are differentiated automatically. (Note 3)
0, 201 to
TR, SC Any address within the address range on the left.
250
SR, SC 201 to 250 Any address within the address range on the left.
ST, SC 201 to 250 Any address within the address range on the left.
AN, SC 201 to 250 Set an address that is the smallest group number you want to control + "200".
GR, SC 201 to 250 Set an address that is the smallest group number you want to control + "200".
SC 201 to 250 Any address within the address range on the left.
[Fig. 7.3.4] (P.9)
A To 3-phase power supply
B to terminal block for indoor-outdoor transmission line connection
[Fig. 7.3.5] (P.9)
Wiring using the supplied temperature sensor
1
2 <Temperature sensor extended with a shielded cable>
Wiring using the supply air temperature sensor
3
A Indoor unit control board (No.1)
C CN20 (Red)
E Cable that is supplied with the temperature sensor
F Supply air temperature sensor cable
<A> Connect the cable to CN20.
<B> Secure the cable with the clamps.
<C> Use closed end connectors to connect the two cables.
<D> Connect the shield to the ground terminal screw.
(the screw is attached in the control box.)
<E> Temperature sensor extended with a shielded cable
<F> Supply air temperature sensor cable is bundled inside the control box.
Setting procedure
B Indoor unit control board (No.2)
D Temperature sensor cable
Address set
at time of
shipment
Model
00
Note 4
00
Main
00
000
201
202
201
247
19