SUPPLY BLOWER
ACCESS DOOR
COIL / ELECTRIC HEATER
ACCESS DOOR
FILTER
ACCESS DOOR
OUTDOOR AIR
WEATHERHOOD
ELECTRICAL
ACCESS DOOR
EXHAUST BLOWER
ACCESS DOOR
WHEEL
ACCESS DOOR
ACCESS DOOR
OPTIONAL
UNIT DISCONNECT
HIGH VOLTAGE
FIELD WIRING
LOW VOLTAGE
FIELD WIRING
ACCESS DOOR
PAC-M100-A Interface
Module located in supply
blower compartment
M-NET cable runs through low
voltage compartment and into
supply blower compartment
PAC-M200-A Interface Module for PremiSys
®
Air Products
5
PAC-M100-A Replacement
Refer to the above Figure 1. PAC-M100-A M-NET Wiring:
1) Remove the supply blower access panel.
2) Remove the cover from the PAC-M100-A.
3) Disconnect the M-NET wires from the TB5 terminal block.
4) Unplug the Modbus wire from the CN2 connector.
Cut the plug off the end of the Modbus wire.
5) Remove wires from box and then remove the box.
6) Attach PAC-M200-A to the wall of blower compartment.
7) Run Modbus and M-NET into the PAC-M200-A through the cable glands.
Refer to next page 6, Figure 2. PAC-M200-A M-NET Wiring:
8) Attach the MODBUS to terminal strip TB485
9) Attach the M-NET wires to terminal TB5 as shown in the wiring diagram.
230 volt power supply is not required when replacing PAC-M100-A with the PAC-M200-A.
Power is provided by M-NET.
10) Secure cable glands, set DIP Switches and address dials the same as the PAC-M100-A for replacement.
11) Replace cover on PAC-M200-A.
M-NET Wiring
Figure 1. PAC-M100-A M-NET Wiring
© 2015 Mitsubishi Electric US, Inc.
Premi
Sys
