Prodigy 2.0 M3 Unit Controller Description; Add-On Boards - Lennox Prodigy 2.0 Application Manual

1. Prodigy 2.0 – M3 Unit Controller Description
The M3 Unit Controller provides all rooftop unit control functions to insure its safe and reliable operation. It also provides
status and diagnostic information to facilitate troubleshooting. The controller's programmable parameters allow adjustment
of time delays and set points that enable advanced features.
The default configuration requires a standard room thermostat or direct digital controller. By changing a single parameter,
the M3 Unit Controller can also control the unit from a room sensor. The M3 Unit Controller can also be configured as a
network controller when daisy-chained to the L Connection
be connected to a computer (Microsoft
1.1.

Add-on boards

Add-on boards connect to the main board to build variations according to application or equipment type.
Packaged Unit
Models
LCH/LGH 036-060 S
LCH/LGH 036-060 H
LCH/LGH 072 H
LCH/LGH 092-150 H/S
LCH/LGH 094U, 122U and 152U
LCH/LGH 156 H
LCH/LGH 180 H
LCH/LGH 210 H
LCH/LGH 240H/300S
Figure 1 shows the M3 Unit Controller components and the location of the add-on board expansion ports.
EXPANSION
PORT
USB CONNECTION
(for Unit Controller
software)
BACnet or
LonTalk
OR
SmartWire
L CONNECTION
connections
(optional connec­
tion method for Unit
Controller software)
®
Windows-based) which has the M3 Unit Controller software installed.
EXPANSION
To disconnect
TSTAT.COM from
COM cut jumper.
Figure 1. M3 Unit Controller and Expansion Board Locations
®
Network. To simplify configuration, the M3 Unit Controller may
A55
Box Size
M3 Unit Controller
A X
A X
A X
B X
B X
C X
C X
C X
C X
X = required
PORT
Page 6
A178
#3 & 4 Compressor Board and
nd
2 Heat Circuit
X
X
X
X
To disconnect
HMD.COM from
COM cut jumper.