Connection To Outdoor Unit; Connection For Operation With Mitsubishi Electric Controller - Mitsubishi Electric CITY MULTI PAC-AH001-1 Manuel D'installation

7.2.1 Connection to Outdoor Unit

• Connect the "M1", "M2" and "S" on AHU controller terminal block to the TB3 on the outdoor unit as shown
in Figure 7.2.1. (Non-polarized 2-wire)
For specifications about the connecting cables, refer to the outdoor unit installation manual.
M1M2
TB3

7.2.2 Connection for Operation with Mitsubishi Electric Controller

• Connect a Mitsubishi MA controller:
To connect an MA controller, connect the 2 wires of the MA controller to positions "1" and "2" of the
terminal labeled "MA Control." on the AHU controller terminal block (Non-polarized 2-wire). Figure 7.2.2.0
shows an AHU controller system controlled with MA controllers.
B
M1M2 M1M2
TB3 TB5
• Connect a Mitsubishi ME controller (or system controller):
To connect an ME controller (or system controller), connect the 2 wires of the controller to the positions
labeled "M1" and "M2" of the terminal labeled "M-NET" on the AHU controller terminal block (Non-
polarized 2-wire). Figure 7.2.2.1 shows an AHU controller system controlled with ME controllers.
PAC-AH001-1
The "S" on AHU controller TB5 is a shielding wire connection.
A
B
M1M2 S
TB5
Fig 7.2.1
A A
S 1 2 M1M2 S 1
TB5
C
Fig 7.2.2.0
33
Ⓐ Terminal block for AHU
controller/ indoor transmission
cable
Ⓑ Terminal block for outdoor
transmission cable
Ⓐ Terminal block for AHU
controller/ indoor transmission
cable
2
Ⓑ Terminal block for outdoor
transmission cable
Ⓒ Remote controller
C
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