Connection For Operation With Third Party Controller - Mitsubishi Electric CITY MULTI PAC-AH001-1 Manuel D'installation

7.2.3 Connection for Operation with Third Party Controller

• A 3rd party controller can be installed to control the following functions of the AHU controller:
– ON/OFF (Operation) function
– Temperature set point (Analog Input) function
• The AHU controller can either be controlled by a Mitsubishi controller or a 3rd party controller; it cannot
be installed to be controlled by both.
• Wiring for ON/OFF (Operation) function
Connection circuit
Operation contact specifications
SW1
A1
A2
Maximum 10 m
Use a relay when the electrical wire exceeds 10 m.
A1
A2
Maximum 10 m
Relay
power
X
source
SW2
• Wiring for temperature set point (Analog Input)
Connection circuit
Analog input
TBY
B1 +DC0~10V
-DC0~10V
B2
• To operate the system using a 3rd party controller, connect the jumper connector "CNRM" located inside
the AHU controller as shown below. Connecting "CNRM" activates the control of the 3rd party controller.
Fig 7.2.3
PAC-AH001-1
SW1: Operation command
(field supply)
Minimum applicable load
DC5 V, 1 mA
X X: Relay (field supply)
Minimum applicable load
DC5 V, 1 mA
SW1: Operation command
(field supply)
Wiring: AWG22~26
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