PAC-M200-A Interface Module for PremiSys
®
Air Products
3
Interface Module Replacement
1) Shut off all power to the DOAS and connected outdoor unit.
2) Open Door #1 shown in Figure 1 (PAC-M200-A will be located here).
3) Remove the cover on the PAC-M200-A.
4) Disconnect all wiring from the connectors and remove from the box.
5) Remove the box and replace with new one.
6) Reroute all wires into the box and reconnect. Refer to the above wiring diagram, Figure 2 for correct connections.
7) Tighten all cable glands to secure wires.
8) Set DIP switches and address dials to the same settings as the box for replacement. Refer to Outdoor Reset
Function, page 8.
9) Replace cover on PAC-M200-A.
P.B.
C.B.
TB5
TB485
SW12 SW11
SW4
SW1
SW2
SW3
3
1
3
1
3
1
S (SHIELD)
1
6
CN60
M-NET
MODBUS
1
4
CN44
1
2
CN20
CNSV1
CNSV2
CNAC
CNLEV2
6
1
7
1
CN2M2
CN1
8
1
CNXB2
1
5
CNXB2
5
1
4
1
1
7
1
2
2
1
8
1
CNLEV
CN7V
CNXA2
CN2M
CN100
PAC-M200-A M-NET INTERFACE MODULE
+
G
-
4
3
2
1
TH22
TH23
TH25
LEV3a
LEV3b
M2
TB5
M-NET
CONNECTION
S
M1
TB485
TO MICROPROCESSOR
CONTROLLER
J25 BMS2 CONNECTION
SV11
SV10
POWER SUPPLY
AC208/230V 60HZ
M-NET WIRING
NOTE :1.Symbols used in wiring diagram above are,
:Terminal
(Heavy dotted line):Field wiring
2.Use copper supply wires.
GROUND
FIELD WIRING
+ G
-
M2 S
M1
Figure 2. PAC-M200-A M-NET Wiring
© 2015 Mitsubishi Electric US, Inc.
Premi
Sys
