Lennox Prodigy 2.0 User Manual

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

Lennox Prodigy 2.0 Specifications

General

Brand	Lennox
Model	Prodigy 2.0
Category	Controller
Language	English