Page 1
E2009
506215−01
09/09
Litho U.S.A.
INSTALLATION & SETUP GUIDE FOR THE M2 UNIT CONTROLLER
USED WITH ENERGENCEt ROOFTOP UNITS
Use arrows to move
DISPLAY SERVICE DATA SETTINGS
ALARM
STATUS
MODE
CALLS
USB
M2 UNIT CONTROLLER
TEST
OFFLINE
IN/OUTPUTS
REPLACE
REPORT
Push to select or enter value; then use
arrows
RUNTIMES
HISTORY
SENSORS
NETWORK
FACTORY
UNIT
SETPOINTS
CONTROL
OPTIONS
INSTALL
DISPLAY
DISPLAY
USER INTERFACE NAVIGATION ARROWS
USER INTERFACE NAVIGATION ARROWS
PRODIGYt
M2 Unit Controller
USB
USB
INTERFACE
INTERFACE
PORT
PORT
(For Flash Drive
SELECT
SELECT
BUTTON
BUTTON
BACnetRt Listed
USB CONNECTION
(for Unit Controller
software)
L CONNECTION ( optional
connection method for Unit
Controller software)
Description
The Prodigyt M2 unit controller:
S provides control functions for Energencet roof-
top unit,
S includes a user interface consisting of a dot ma-
trix display, navigation arrow buttons, a select
button, and a USB port,
S provides status & diagnostic information for trou-
bleshooting,
S allows adjustment of time delays and setpoints
that enable advanced features,
S is controlled by a standard room thermostat, di-
rect digital controller (DDC), or a zone sensor,
S can be configured as a device on the network
when daisy−chained to the L Connection
work,
S may be connected to a PC which has been
loaded with Unit Controller software,
S accepts add−on boards to build variations ac-
cording to application or equipment type.
S USB verification
®
Net-
SMARTWIREt
CONNECTORS
Table Of Contents
M2 unit controller, expansion board locations,
SmartWiret connections 2. . . . . . . . . . . . . . . . . . . . . . . .
M2 unit controller LED operation indications 3. . . . . . . . . . . .
Startup 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu interface 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation:
DISPLAY 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TEST 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DATA 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SETTINGS 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BACnet
Networking Controllers 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Economizer (Damper) 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
APPENDIX:
®
Abbreviations 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
USB Service Report Example 21. . . . . . . . . . . . . . . . . . . .
Alarm Codes 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Diagrams 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
M2 unit controller signal reference diagram 30. . . . . . . . .
M2 unit controller board connections diagram 31. . . . . . .
QUICK START GUIDE (BACK COVER) 32. . . . . . . . . . . .
15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
09/09 506215−01
*2P0909* *P506215-01*
Page 1
Page 2
M2 (A55) unit controller − location, controls, inputs/outputs
M2 unit controller board, expansion board locations, SmartWiret connections
Figure 1 shows the controller components and the locations for expansion boards.
CONTROL
BOARD
EXPANSION
PORT
CONTROL
BOARD
EXPANSION
PORT
USB CONNECTION
(for Unit Controller
software)
L CONNECTION ( optional
connection method for Unit
Controller software)
ECONOMIZER POTS
AND DIP SWITCHES
Figure 1. M2 unit controller board and expansion boards
2 AMP FUSE
(PAGE 18)
Page 2
Page 3
M2 unit controller LED indicators
Some indicators on the circuit board are visible with the cover in place; others are not. The indicators and their meanings are
described in table 1.
Table 1. LED operation indications
LED Status Indication Meaning
Heartbeat green Slow Flash Normal Operation
OAS
PC
Connection
green Fast Flash Check 24V, update
green Steady Off No voltage to M2 board
green Steady On Defective Board (re-
green Steady ON Outside air is suitable
green Flashing
Local
(amber)
Network
(green)
Flickering ON
Flickering ON
firmware, or replace
board
or defective board
place)
IAQ mode or mechanical cooling during free
cooling
Communication to PC
USB connector
Network communication
LED Status Indication Meaning
S−BUS BUS
BACnet RX (green) Flickering ON M2 is receiving
Thermostat
Input
Thermostat LEDs indicate only with incoming thermostat connection
vis SmartWire connector.
Slow Flash = 1 sec on; 1 sec off.
Fast Flash = 1 msec on; 1 msec off.
A flickering" LED flashes significantly faster than a fast flash.
NOTE − LEDs are energized by 24 vac thermostat inputs.
(green)
TX
(amber)
TX (red) Flickering ON M2 is transmitting
amber Indicates a
Flickering ON Network traffic present
Flickering ON M2 is transmitting
thermostat demand
G− Blower on
W1− 1st stage heat
W2− 2nd stage heat
Y1− 1st stage cool
Y2− 2nd stage cool
OCP−Occupied
Startup
Connections between RTU & M2 unit controller
The M2 unit controller connects to the rooftop unit using
SmartWiret connectors. Each connector is keyed" so
that no connector can be installed in the wrong location. Be
sure all connectors are in place and completely inserted
(see figure 1).
Sensor Common Isolation
Thermostat (TSTAT) and humidity (HUM) sensor commons may be isolated if they are powered remotely. Slide
switch to OPEN to isolate (see figure 1).
USB interface usage
The USB port is used for service verification and for downloading reports. Onsite data collection requires use of a
USB flash drive. Data written to the drive includes date,
time, serial number, catalog number, basic data, and error
code buffer. Technicians then transfer the data to a PC and
then forward encrypted files to billing personnel for service
history verification.
PC interface
The PC interface is used with unit controller software to
change programming. The M2 interface uses a USB A to B
male cable. You may also continue to use 9 pin/RS485
connection to the phone jack or S−BUS connector as before. A list of service connection kits is on Page 20.
SmartWire Field Wiring Connections
The SmartWire connectors, P297, P298 and P299, allow for easy field wiring connection points.
2−amp fuseThe 24VAC supply outputs, (R), on these
connectors are routed through the fuse, F1. This fuse is a
standard 2−amp, automotive−style blade fuse. This fuse
protects the Prodigy controller from field wiring mis−wires.
TSTAT COMThe switch "TSTAT COM" is located to the
left of P297. This switch is used only in unique situations
where the device supplying the thermostat signals to the
Prodigyt controller has its own power source and does
not share a common reference voltage with the Prodigyt
controller. Otherwise the TSTAT COM switch needs to be
set to the default, closed position, to the right.
HMD COMThe switch "HMD COM" is located to the right
of P299. This switch is used only in unique situations
where the device supplying the dehumidify command signal to the Prodigyt controller has its own power source
and does not share a common reference voltage with the
Prodigyt controller. Otherwise the HMD COM switch
needs to be set default, closed position, to the left.
Page 3
Page 4
Startup (continued)
User interface menu
The user interface is accessed through the menu navigation arrows and the select button . The diagram
in figure 2 shows a high level overview of the main menu
options along with the next level list of selections. The lower level options are described later in this manual.
Home" location, DISPLAYWhen the unit is powered
on, one of the features in the DISPLAY column will be
shown (the word ’DISPLAY’ is never shown). What is displayed in this home" screen, is dependant on the priority
message present at the time, in priority order of top−to−bot-
NOTE − Use the left button during normal
operation to clear delays (hold 2 seconds)
or reset the controller (5 seconds).
Dashed line for automatic
displayed messages
DISPLAY
ALARM
SERVICE DATA SETTINGS
TEST
tom of the left column in figure 2. For example, if an alarm is
present, that will be displayed until it has been silenced or
cleared.
To access the other three columns, first press and then
use to scroll between SERVICE, DATA, AND SETTINGS. Next, press to open the SERVICE (or DATA or
SETTINGS) menu. Use
until desired item is dis-
played.
To return to DISPLAY, use
(hold it down if you are deep in
the menu structure and you will be stepped back to DISPLAY.
RUNTIMES
UNIT
STATUS
MODE
CALLS
USB
OFFLINE
IN / OUTPUTS
Use arrows to move
REPLACE
REPORT
HISTORY
SENSORS
Use arrows to move
NETWORK
FACTORY
Figure 2. M2 unit controller main interface menu
SETPOINTS
CONTROL
Use arrows to move
OPTIONS
INSTALL
Page 4
Page 5
Menu Interface
Table 2 shows the major levels of the menu interface.
Many of these options have more levels and are described
in the following sections that detail DISPLAY, SERVICE,
DATA, and SETTINGS.
Use rectangular button
to progress to next
lower level (i.e. Level 1 to Level 2).
Use left arrow
toback up" to the next higher level
(i.e. Level 2 to Level 1).
Use the up/down
arrows to move within a level
and change values of selected item.
Table 2. Menu Interface
Level 1 Level 2 Level 3
NOTE − Features and options not currently available are greyed out in
the manual and will show a message of N/A" on the display
SILENCE (push any button to silence)
SILENCE (push any button to silence)
BLOWER
COOLING
FREE COOLING
FRESH AIR COOL
FRESH AIR HEAT
HEATING
HVAC OFF
IDLE
TSTAT Y1, etc
BACNET Y1, etc
LONTALK Y1, etc
WRITING USB
WRITING ALARM/STATUS LOG
USB COMPLETE
GUIDED
BLOWER
FANS
COOL
HEAT
DAMPER
REHEAT
SENSORS
OUTPUTS
CONTROLLER
LOCKOUT
BLOWER ONLY
COOLING ONLY
HEATING ONLY
RESET
ZONING
SENSORS
RELAYS
NETWORK
OUTPUTS
FILTER
BELT
UV LAMP
FANS
BLOWER
COMPRESSOR
MAKE REPORT
READ INSTALL
READ FACTORY
MORNING
WARMUP
M2 FAILED TO
RESPOND
PRE−COOL
PRE INSTALL
REHEAT
SMOKE
TEST
LCONN Y1, etc
BUILDING Y1, etc
(display
area)
SERVICE
USE ARROWS TO MOVE
REPLACE
ALARM
STATUS
MODE
CALLS
USB
TEST
OFFLINE
IN /
OUTPUTS
REPORT
Table 2. Menu Interface (cont’d)
Level 1 Level 2 Level 3
POWER ON
FILTER: XX HRS
BELT: XX HRS
UV LAMP: XX HRS
BLOWER: XX HRS − XX CYC
COOLING
HEATING
FREE COOLING: XX HRS − XX
CYC
FANS
EXHAUST
REHEAT: XX HRS − XX CYC
ALARMS
STATUS
LAST USB
READ INSTALL RPT
CLEAR HISTORY
TSTAT
BRPM:XX
DPOS:XX%
OAT:XXºF
RAT:XXºF
DAT:XXºF
ZAT:XXºF
IAQ:XX PPM
SMK:OFF/ON
RH:XX%
IE:XX MA
OE:XX MA
GLO:OFF/ON
DI2:OFF/ON
DI3:OFF/ON
DI4:OFF/ON
LCONN ADDRESS
BACNET ADDRESS
LONTALK ADDRESS
READ M2 SOFTWARE
VERSION
READ DB SOFTWARE
VERSION
READ FACTORY RPT
CATALOG NO.
MODEL NO.
SERIAL NO.
UNIT NO.
DATE/TIME
UNITS F/C
COOLING
HEATING
DAMPER
REHEAT
EXHAUST
IAQ
GUIDED SETUP
LOCAL
THERMOSTAT
LCONN
BACNET
LONTALK
MSAV
REHEAT
RESERVED
NEW M2
DAMPER
FLOAT SW
BLOWER PROVING SW
PHASE MONITOR
UV LAMP
ELECTRIC HEAT STAGES
UPDATE DISPLAY SOFTWARE
DATA
SET-
TINGS
RUNTIMES
USE ARROWS TO MOVEUSE ARROWS TO MOVEUSE ARROWS TO MOVEUSE ARROWS TO MOVE
NETWORK
SETPOINTS
USE ARROWS TO MOVE
HISTORY
SENSORS
(also
accessible
thru In /
Outputs)
FACTORY
UNIT
CONTROL
OPTIONS
INSTALL
Page 5
Page 6
Menu Interface DISPLAY
The display shows operating mode if in normal operation.
Alarm, status, calls and plugging in the USB will interrupt
the display. Alarm messages will stay displayed until corrected or silenced using the local menu.
DISPLAY
ALARM
STATUS
MODE
CALLS
USB
Dashed line for automatic
displayed messages
ALARM Example ˘ MODE message
COOLING" is displaying when a smoke
alarm occurs; then ALARM:(XX) SMOKE
A17" displays until cleared. You must
clear all alarms and status to see normal
MODE message. Strike 3 alarms will say
ALARM(XX):STRIKE 3 COMP1 HIGH
PRESS S4" after the alarm message.
USB ˘ normal MODE message is displayed when USB is plugged in; message
examples:
WRITING USB"
WRITING ALARM/STATUS LOG"
USB COMPLETE"
Normal Mode Messages
The format of the message is mode and setpoint (see table
3).
Table 3. Possible MODE messages
BLOWER Blower only
COOLING Cool demand present; unit is cooling
FREE COOLING No compressor cooling
FRESH AIR COOL Cool ventilation air to neutral value
FRESH AIR HEAT Heat ventilation air to neutral value
HEATING Heat demand present; unit is heating
HVAC OFF No heat, cool, ventilation allowed
IDLE Demand satisfied; blower off
MORNING WARMUP Outdoor air damper closed
M2 FAILED TO RESPOND
PRE−COOL
PRE−INSTALL Must follow installation menus
REHEAT Unit is dehumidifying
SMOKE Smoke input detected
TEST Network has unit in test mode
(blank screen) Bootloader mode
Display is missing messages from
M2
No compressor allowed when free
cooling
Unit Operation
This section describes the display and control buttons,
how to configure the unit, and how to read stored configuration data, status, and alarms.
The M2 unit controller is an input and output junction
point. If in the thermostat mode, thermostat inputs at
P297 result in an output to unit components (see table 11
on Page 30). If the heartbeat LED is not flashing, see
table 1 (Page 3) for heartbeat operation. If the display
shows an alarm, refer to table 10 (Page 22) for more information. If the thermostat input indicating lights are not
responding appropriately, check the thermostat or a
DDC control acting as thermostat inputs into P297.
Basic cooling and heating functions may be energized to
test major unit components by using the M2 unit controller
testing function or by using jumper wires on the Field Wiring Termination plug P297.
To access the other three columns, first press and then
use to scroll between SERVICE, DATA, AND SETTINGS. Next, press to open the SERVICE (or DATA or
SETTINGS) menu. Use until desired item is displayed.
Alarms
Figure 3 shows a typical alarm and how the message will
scroll.
DISPLAY
WINDOW
ALARM(xx): SMOKE DETECTED.
LEFT SCROLLING
MESSAGE
(To SILENCE an alarm,
press any of these buttons.)
Figure 3. Alarm Code Readout Example
SILENCE − to silence an alarm, press any of the control
buttons while the alarm is displayed.
USB Service Verification
When the Lennox USB drive is plugged in during normal
MODE, a message will be displayed to indicate data is being written to the drive. When finished, the message USB
COMPLETE" will be displayed.
From the USB you may get the last report from the M2 unit
controller and view it using any PC text program.
Multiple units may use the same USB drive. The filename
of the service reports will be based on the unit’s serial number; for example 5608J5875.txt.
Page 6
Page 7
Menu Interface SERVICE
From the DISPLAY mode, press and then use to
scroll to SERVICE. Next, press
to enter the SERVICE
menu. Use until desired item is displayed.
SERVICE
TEST
OFFLINE
IN / OUTPUTS
Use arrows to move
REPLACE
REPORT
Using SERVICE, you may run tests that
check a functional operation (e.g. HEATING) or you may run tests that single out
a system component for checking. The
diagram below shows how to navigate
through the system to access a functional
test or a component test.
When the list of tests appears, use the
up/down arrows until the test you want to
run appears. Then press the SELECT
BUTTON to begin running the test.
SERVICE > TEST
In the SERVICE menu, use until TEST is displayed.
Press to enter the TEST menu.
TEST
GUIDED
BLOWER
FANS
SERVICE > OFFLINE
In the SERVICE menu, use until OFFLINE is displayed. Press to enter the OFFLINE menu.
OFFLINE
LOCKOUT
BLOWER ONLY
COOLING ONLY
HEATING ONLY
Use arrows to move
RESET
SERVICE > IN / OUTPUTS
In the SERVICE menu, use until IN / OUTPUTS is displayed. Press to enter the IN / OUTPUTS menu.
IN/OUTPUTS
ZONING
SENSORS
RELAYS
NETWORK
Use arrows to move
OUTPUTS
COOL
Use arrows to move
HEAT
DAMPER
REHEAT
SENSORS
OUTPUTS
CONTROLLER
TEST is described in
detail in table 4
[Page 8]).
Using the TEST menu, the service technician may run a
sequence of tests to gather information available while that
component is turned on. The unit will return to normal
mode when leaving the TEST menu. See table 4 for details.
Any Status/Alarm codes found during testing will be logged
to the event history.
Upon exit from TEST mode, the unit will return to normal
operation if no key is pushed for 1 hour.
SERVICE > REPLACE
In the SERVICE menu, use REPLACE to reset the runtime
counters for the listed device when a new hardware component has been installed in the system.
Use until REPLACE is displayed. Press to enter
the REPLACE menu. This will reset the runtime for the new
part to zero.
REPLACE
FILTER
BELT
UV LAMP
FANS
Use arrows to move
BLOWER
COMPRESSOR
Page 7
Page 8
Menu Interface SERVICE (Continued)
SERVICE > TEST (Continued)
Table 4. TEST
TEST
GUIDED
BLOWER HIGH K3 HK3 OFF/ON Run blower on maximum speed
LOW K3 LK3 OFF/ON Run blower on minimum speed
PROVING SWITCH Display status of the switch with blower low speed.
Use ar-
rows to
move
FILTER SWITCH Display status of the switch with blower low speed
RPM XX RPM Shows RPM for blower and allows adjustment
FANS FAN1 FN1 OFF/ON Allow turning on fan1 individually
FAN2 FN2 OFF/ON Allow turning on fan2 individually
COOL COOL 1 (compr low) RAT Monitors return air temperature. Stage 1 compr low−speed test. Dampers are closed for
Use arrows to move
COOL 2 (compr hi) RAT Monitors return air temperature. Stage 2 compr low−speed test. Dampers are closed for
Use ar-
rows to
move
HEAT HEAT 1 RAT Monitors return air temperature. Stage 1 heat test; dampers automatically close and blower
HEAT 2 RAT Monitors discharge air temperature. Stage 2 heat test; dampers automatically close and
Use ar-
rows to
move
DAMPER POSITION OPEN: XX % Damper allows testing economizer, motorized damper, and powered exhaust. Position
IEN: XX MA Monitors indoor enthalpy sensor.
OEN: XX MA Monitors outdoor enthalpy sensor.
Use ar-
rows to
move
EXHAUST EXHAUST 1 EXH1:OFF/ON Turns on stage 1 fan individually.
REHEAT HUM − Y1 HUM − Y1 OK Turns on stage 1 reheat; displays report.
HUM &−Y2 HUM − Y2 OK Turns on stage 2 reheat; displays report.
SENSORS
OUTPUTS SERVICE RELAY RELAY OFF/ON Output test of service relay.
DO2 DO2 OFF/ON Output test of DO2.
Use ar-
rows to
move
DO3 DO3 OFF/ON Output test of DO3.
CONTROLLER M2 TEST M2 OK" if no errors. Checks memory and
DISPLAY TEST TEST OK" if no errors. Checks switches and screen.
DAT Monitors discharge air temperature. Blower, dampers, fans are actuated automatically
DAT Monitors discharge air temperature. Blower, dampers, fans are actuated automatically
DAT Monitors discharge air temperature. Stage 1 heat test; dampers automatically close and
DAT Monitors discharge air temperature. Stage 2 heat test; dampers automatically close and
EXHAUST 2 EXH2:OFF/ON Turns on stage 2 fan individually.
compressor tests.
during tests.
compressor tests.
during tests.
comes on for heat test.
blower comes on for heat test.
blower comes on for heat test.
blower comes on for heat test.
allows monitoring damper position and control using arrow keys.
TSTAT
BRPM:XX
DPOS:XX%
OAT:XX ºF
RAT:XX ºF
Use sensor tests to choose each sensor
and read the current sensed value.
installation of controller options.
DAT:XX ºF
ZAT:XX ºF
IAQ:XX PPM
SMK:OFF/ON
RH:XX%
IE:XX MA
OE:XX MA
GLO:OFF/ON
D12:OFF/ON
DI3:OFF/ON
DI4:OFF/ON
SETUP SETUP OK" if no errors. Checks proper installation of controller boards,
switches, and settings
Page 8
Page 9
Menu Interface DATA
From the DISPLAY mode, press and then use to
scroll to DATA. Next, press
to enter the DATA menu.
Use until desired item is displayed.
Use DATA to view information stored in the M2 Unit Controller.
DATA
RUN TIMES
HISTORY
SENSORS
Use arrows to move
NETWORK
FACTORY
DATA > RUNTIMES
In the DATA menu, use until RUNTIMES is displayed.
Press to enter the RUNTIMES menu.
View accumulated runtime hours logged against various
components and systems by the M2 unit controller.
RUNTIMES
POWER ON
FILTER: XX HRS
BELT: XX HRS
UV LAMP: XX HRS
Use arrows to move
BLOWER: XX HRS
COOLING
HEATING
FREE COOLING: XX HRS − XX CYC
FANS
EXHAUST
REHEAT: XX HRS − XX CYC
As each entry is listed, its accumulated runtime is automatically displayed.
DATA > HISTORY
In the DATA menu, use until HISTORY is displayed.
Press to enter the HISTORY menu.
Read the accumulated historical data of alarms, status,
and USB reports logged by the M2 unit controller.
HISTORY
ALARMS
STATUS
LAST USB REPORT
READ INSTALL
Use arrows to move
CLEAR HISTORY
Use the up/down arrows
to scroll through a list of
ALARMS and STATUS
events
DATA > SENSORS
In the DATA menu, use until SENSORS is displayed.
Press to enter the SENSORS menu.
View the current sensed value for various systems being
sent to the M2 unit controller.
SENSORS
TSTAT
BRPM:XX
DPOS:XX%
OAT:XXºF
Use arrows to move
RAT:XXºF
DAT:XXºF
ZAT:XXºF
IAQ: XX PPM
SMK: OFF/ON
RH: XX%
IE: XX MA
OE: XX MA
GLO: OFF/ON
DI2: OFF/ON
DI3 OFF/ON
DI4: OFF/ON
As each sensor is listed, its
reading is automatically displayed.
Page 9
Page 10
Menu Interface DATA (Continued)
DATA > NETWORK
In the DATA menu, use until NETWORK is displayed.
Press to enter the NETWORK menu.
Read the NETWORK addresses stored in the M2 unit controller.
NETWORK
LCONN ADDRESS
BACNET ADDRESS
Use arrows to move
LONTALK ADDRESS
Use the up/down arrows
to scroll through a list of
device addresses
DATA > FACTORY
In the DATA menu, use until FACTORY is displayed.
Press
Read the FACTORY information stored in the M2 unit controller. Use
to enter the NETWORK menu.
Use the up/down arrows
to scroll through the readable entries. Use the se-
FACTORY
READ M2 SOFTWARE VERSION M2 VX.XX
READ DB SOFTWARE VERSION DB1 VX.XX
READ FACTORY REPORT
CATALOG NO. (catalog number)
Use arrows to move
MODEL NO. (model number)
SERIAL NO. (serial number)
lect button to view software versions.
Page 10
Page 11
Menu Interface SETTINGS−
From the DISPLAY mode, press and then use to
scroll to SETTINGS. Next, press
to enter the SET-
TINGS menu. Use until desired item is displayed.
SETTINGS
UNIT
SETPOINTS
CONTROL
Use arrows to move
OPTIONS
INSTALL
Use SETTINGS to make changes to the
Unit Controller after initial installation.
Many of the setting changes are the same
as install. Changes are limited by the
unit’s build information. If you install new
options, you can make changes to equipment settings beyond the factory values.
Load shed to include power percentage
and hard wire.
SETTINGS > UNIT
In the SETTINGS menu, use until UNIT is displayed.
Press to enter the UNIT menu.
View and change the current settings in the 2 unit controller.
UNIT
SETTINGS > SETPOINTS
COOLING
HEATING
(See Page 12 for DAMPER)
REHEAT
EXHAUST
IAQ
In the SETTINGS menu, use
played. Press
to enter the SETPOINTS menu.
View and change the current system setpoints setup in the
M2 unit controller as shown in the following diagrams for
COOLING, HEATING, REHEAT, EXHAUST and IAQ.
SETPOINTS
COOLING
OCP COOL BU STPT XX.XºF
UNOCP COOL BU STPT XX.XºF
FREE COOL TEMP STPT XX.XºF
Use arrows to move
COMP TIME OFF DELAY
COOLING OPTION
HEATING
until SETPOINTS is dis-
Use arrows
to move
UNIT NO.
DATE/TIME
TIME 15:45:00 DISPLAY TIME
DATE 01.01.00 DISPLAY DATE
SET CLK MTH: 09
DAY: 21
YR: 2009
HR: 10
MIN: 08
(returns
display)
UNITS F/C
TIME"
09:45:01
EXAMPLE
OF TIME
AND DATE
CHANGE
OCP HEAT BU STPT XX.XºF
UNOCP HEAT BU STPT XX.XºF
DAMPER (SEE PAGE 12)
REHEAT
REHEAT STPT 68ºF
REHEAT DEADBAND 3%
EXHAUST
SMOKE POS 50%
EXHAUST FAN STPT 50%
IAQ
DAMPER START OPEN STPT 700PPM
DAMPER FULL OPEN STPT 1200PPM
REHEAT WILL NOT BE VISIBLE UNLESS
IT WAS INSTALLED AT THE FACTORY.
Page 11
Page 12
Menu Interface SETTINGS (Continued)
SETTINGS > SETPOINTS
DAMPER
Use SETTINGS > SETPOINTS > DAMPER as shown in
the following diagram; default settings will be used. You
may adjust those settings to suit the building’s requirements. The following diagram shows the DAMPER menu’s
structure and how to make changes.
NOTE: FOR
SETPOINTS
DAMPER
OAS TEMP STPT
ECONOMIZER MODE
TEMP MODE Set DIP sw1 to TMP −>
CONTROL
OAT STPT 41−70ºF 60ºF
OFFSET 0−40ºF 15ºF. . . . . . . . .
ENTH MODE Set DIP sw1 to ODE −>
GLOBAL MODE Set DIP sw1 to GLO −>
Use arrows to move
SUPPLY AIR STPT 55ºF
MIN OCP BLOWER LOW 15%
MIN OCP BLOWER HIGH MIN POS SET POT
FAH DISABLED
FAC DISABLED
DETAILS, SEE
ECONOMIZER
SECTION Page 18
SEE
FIGURE 6
(PAGE 19)
SETTINGS > CONTROL
LOCAL
Select SETTINGS > CONTROL > LOCAL as shown in the
following diagram; default settings will be used. You may
adjust those settings to suit the building’s requirements.
CONTROL
LOCAL
RETURN AIR BACKUP YES/NO
OCP HEAT BU STPT XX.XºF
UNOCP HEAT BU STPT XX.XºF
OCP COOL BU STPT XX.XºF
UNOCP COOL BU STPT XX.XºF
SETTINGS > CONTROL
THERMOSTAT SETUP
No setting changes are required. Simply hook up to SmartWiret connections.
SETTINGS > CONTROL
CONTROL: L CONN (L Connection)
Select SETTINGS > CONTROL > L CONN as shown in
the following diagram; default settings will be used. You
may adjust those settings to suit the building’s requirements.
SETTINGS > CONTROL
In the SETTINGS menu, use until CONTROL is displayed. Press to enter the CONTROL menu.
View the current system setpoints setup in the M2 unit controller.
CONTROL
GUIDED SETUP
LOCAL
THERMOSTAT
L CONN
Use arrows to move
BACNET
LONTALK
MSAV
REHEAT
CONTROL
L CONN
ADDR:XX
CONTROL MODE
BACKUP MODE (1,2,3)
OCP HEAT BU STPT XX.XºF
UNOCP HEAT BU STPT XX.XºF
OCP COOL BU STPT XX.XºF
UNOCP COOL BU STPT XX.XºF
STARTUP DELAY (2 − 30) 2 MIN
OVERRIDE TIMER (0 8HR) 1 HR
BLOWER ON OCP
NETWORK COMFORT SENSOR
0. NONE
1. TSTAT
2. RAT
3. ZAT
CYCLES OR
CONTINUOUS
Page 12
Page 13
Menu Interface SETTINGS (Continued)
SETTINGS > CONTROL
BACNET
Select SETTINGS > CONTROL > BACNET as shown in
the following diagram; default settings will be used. You
may adjust those settings to suit the building’s requirements. The following diagram shows the BACNET menu’s
structure and how to make changes.
CONTROL
BACNET
MAC ADDRESS 0 − 127
BAUD RATE
CONTROL MODE
BACKUP SENSOR
OCP HEAT BU STPT 70.0ºF
UNOCP HEAT BU STPT 60.0ºF
OCP COOL BU STPT 75.0ºF
Use arrows to move
UNOCP COOL BU STPT 85.0ºF
STARTUP DELAY (2 − 30) 2 MIN
OVERRIDE TIMER (0 8HR) 1 HR
BLOWER ON OCP
NETWORK COMFORT SENSOR
9.6K 19.2K
38.4K 76.8K
MONITOR ONLY
ZONE
REMOTE
1. NO BACKUP
2. TSTAT
3. RET AIR SENSOR
CYCLES OR
CONTINUOUS
SETTINGS > CONTROL
LONTALK
Select SETTINGS > CONTROL > LONTALK as shown in
the following diagram; default settings will be used. You
may adjust those settings to suit the building’s requirements. The following diagram shows the LONTALK
menu’s structure and how to make changes.
SETTINGS > CONTROL
MSAV (Multi-stage air volume)
Select SETTINGS > CONTROL > MSAV as shown in the
following diagram; default settings will be in place. You
may adjust those settings to suit the building’s requirements. The following diagram shows the MSAV menu’s
structure and illustrates how to use the controls to make
changes.
CONTROL
MSAV
MSAV HIGH SPEED 85%
Use arrows
to move
MSAV LOW SPEED 55%
Actual values depend on tonnage.
SETTINGS > CONTROL
REHEAT
When you select REHEAT, default settings will be in place.
You may adjust those settings to suit the building’s requirements. The following diagram shows the REHEAT menu’s
structure and illustrates how to use the controls to make
changes.
CONTROL
REHEAT
DEHUMIDISTAT
SENSOR
REHEAT STPT 0−99%
Use arrows
to move
REHEAT DEADBAND 1−10%
ZONE SENSOR
NETWORK
NONE
CONTROL
LONTALK
CONTROL MODE
BACKUP SENSOR
OCP HEAT BU STPT 70.0ºF
UNOCP HEAT BU STPT 60.0ºF
OCP COOL BU STPT 75.0ºF
UNOCP COOL BU STPT 85.0ºF
Use arrows to move
STARTUP DELAY (2 − 30) 2 MIN
OVERRIDE TIMER (0 8HR) 1 HR
BLOWER ON OCP
NETWORK COMFORT SENSOR
MONITOR ONLY
ZONE
1. NO BACKUP
2. TSTAT
3. RET AIR SENSOR
CYCLES OR
CONTINUOUS
Page 13
Page 14
Menu Interface SETTINGS (Continued)
SETTINGS > INSTALL
In the SETTINGS menu, use until INSTALL is displayed. Press
Use INSTALL > NEW M2 to go through the setup and
change settings as needed when installing a replacement
M2 (new M2 units have no factory pre−sets). This complete
INSTALL procedure is described earlier in this manual
(see Page 14).
Use INSTALL > DAMPER to set up motorized outdoor air
damper or economizer (see Page 12).
Use INSTALL > FLOAT SW to set up a condensate pan
overflow switch.
Use INSTALL > UPDATE DISPLAY SW is to install new
display software.
INSTALL
NEW M2
DAMPER
Use arrows to move
FLOAT SWITCH
BLOWER PROVING SW
to enter the INSTALL menu.
MOAD OR ECON SEE DAMPER (PAGE 12)
SETTINGS > INSTALL
INSTALL: NEW M2
Use SETTINGS > INSTALL > NEW M2 as shown in the
following diagram; default settings will be used. Use menu
to change setpoints or control mode. The unit comes factory configured for thermostat mode. An expert manual and
service software are available for more complex installations (see Table 9, Page 20).
If any alarms are present, take corrective action prior to
installation.
INSTALL
NEW M2
UNIT SERIAL NUMBER
UNIT NUMBER 1 TO 256
UNIT CATALOG NUMBER
DAMPER 0 TO 2
Use arrows to move
EXHAUST STAGES NONE,
OUTDOOR FAN 1 TO 3
Use arrows to move
PHASE MONITOR
UV LAMP
ELECTRIC HEAT STAGES 0, 1, 2
EXIT BOOTLOADER BY
UPDATE DISPLAY SOFTWARE
ERS
HOLDING BACK ARROW
FOR ~ 3 SECONDS
Page 14
Page 15
BACnet®
Recommendations
1. Set all BACnet® devices on an MS/TP network to consecutive MAC addresses, starting at 1, so that there
are no gaps between MAC address values.
2. Set Max_Master device property on all devices to
match the largest MAC address on the network. Note,
this could be larger than existing network to allow for
adding devices to the network with out the need to adjust the Max_Master property in the future.
3. Use ReadPropertyMultiple service instead of ReadProperty service when reading multiple analog inputs
or values.
4. Do not exceed the maximum recommended length
(1200 M / 4000 ft.) for any MS/TP segment.
(not termi-
nated)
The configuration shown above has terminations on the
M2 BACnet modules at both ends and ONLY at both ends
of the chain.
The configuration shown to the right has a termination at
the controller/router on one end and a termination at the
M2 BACnet module on the other end; terminations are
ONLY at the ends of the chain.
Cable type − twisted pair with shield, 22 awg minimum,
Belden #88761 or #8761 (Lennox 27M19, 94L63, 68M25).
CONTROLLER/
(not terminated)
CONTROLLER/
(terminated per mfg
Figure 4. Terminating ends of daisy−chained networks
ROUTER
ROUTER
instructions)
5. All MS/TP network segment ends should be terminated the same way per manufacturer instructions.
6. To minimize communication compatibility problems,
BACnet gateways or BACnet devices that are NOT
BTL listed should be avoided.
Default Settings
device Max_Master = 127
device Max_Info_Frames = 1
device Object_Identifier = MAC address
device Object_Name = Lennox_M2" + MAC address
device Location = US"
device Description = Lennox HVAC Controller"
baud rate = 38.4k
(not termi-
nated)
(terminated)(terminated) (not terminated) (not terminated)
(not termi-
nated)
(not terminated)
(terminated)
Analog Output Objects
Optional Properties Supported: Min_Pres_Value, Max_Pres_Value
Optional Writable Properties: Out_Of_Service
Analog output object’s Overridden status flag set if the equivalent setpoint in the M2 is written to by an S−BUS device.
Table 5. Analog Output Objects List
Object ID Object Name Units Min. Value Max. Value Valid Values within Range
101 Application Mode Control None 0 255 0,1,3,6,9,208,209,216,217,218,224-254,255*
102 Outdoor Air Min Pos Control Percent 0 255 all
103 Occupancy Override Control None 0 255 all
104 Occupancy Scheduler Control None 0 255 all
107 Occupancy Sensor Input None 0 255 all
108 Space Dehumidification Setpoint Percent 0 100 all
109 Temperature Setpoint (abs) Deg. F 36.25 100 all
110 Temperature Setpoint Offset Deg. F −32 31.75 all
113 Space Temperature Input Deg. F 36.25 100 all
114 Emergency Override Control None 0 255 all
115 Compressor Enable Control None 0 255 all
117 Primary Heat Enable Control None 0 255 all
119 Auxiliary Heat Enable Control None 0 255 all
123 Duct Static Setpoint In. of water 0 5 all
124 Building Static Setpoint In. of water −0.5 0.5 all
125 Discharge Air Cooling Setpoint Deg. F 40 80 −9,40-80*
126 Discharge Air Heating Setpoint Deg. F 80 140 −9,80-140*
127 Supply Fan Capacity Input Percent 33 255 all*
128 Exhaust Fan Capacity Input Percent 33 255 all
129 Set Economizer Outdoor Air Suitable None 0 255 all
Page 15
Page 16
BACnet® (continued)
Analog Input Objects
Optional Properties Supported: None
Optional Writable Properties: Out_Of_Service (AI239 − AI252, AI274 − AI285 only)
Table 6. Analog Input Objects List
Object ID Object Name Units Data Range
198 Mac Address None 0 − 127
199 M2 Address None 1−31
200* M2 Version[4] None 0 − 127
201* M2 Version[5] None 0 − 127
202* M2 Version[6] None 0 − 127
203* M2 Version[7] None 0 − 127
204* M2 Version[8] None 0 − 127
205* M2 Version[9] None 0 − 127
206* M2 Version[10] None 0 − 127
207* M2 Version[11] None 0 − 127
231 Unit ID None 0 − 127
232 Unit Status None 0 − 255
239 Space Temperature Deg. F 63.75 − 100.00
240 Discharge Air Temperature Deg. F −8.7 – 164.4
241 Effective Occupancy None 0 − 2
242 Local Outside Air Temperature Deg. F −30.6 – 131.6
243 Local Space Temperature Deg. F 63.75 – 100.00
244 Outside Air Damper Percent 0 − 100, 255
245 Heat Primary Percent 0 – 100
246 Heat Secondary Percent 0 – 100
247 Cool Primary Percent 0 – 100
248 Economizer Enabled Percent 0, 1, 255
250 Supply Fan Status Percent 0 − 100
252 Space Temperature Set Point (Eff) Deg. F 40.0 – 95.0
253 Current Error None 0 − 255
254 Error Pointer None 0 – 83
255 Most recent Error 1 None 1 − 255
256 Most recent Error 2 None 1 − 255
257 Most recent Error 3 None 1 − 255
258 Most recent Error 4 None 1 − 255
259 Most recent Error 5 None 1 − 255
260 Most recent Error 6 None 1 − 255
261 Most recent Error 7 None 1 − 255
262 Most recent Error 8 None 1 − 255
263 Most recent Error 9 None 1 − 255
264 Most recent Error 10 None 1 − 255
274 Space CO2 Sensor (Eff) Parts−per−million 0 − 2000
275 Space CO2 Sensor (Local) Parts−per−million 0 − 2000
276 Space Humidity (Eff) Percent 0 − 100
277 Space Humidity (Local) Percent 0 − 100
278 Dehumidification Set Point (Eff) Percent 0 − 100
279 Dehumidification Status None 0 − 2
281 Return Air Temperature Deg. F −8.7 – 164.4
282 Building Static Pressure Inches of water −0.5 − 0.5
283 Duct Static Pressure Inches of water 0 – 5.00
285 Exhaust Fan Status Percent 0 − 100
* Not recommended for new installations; legacy support only
Page 16
Page 17
BACnet® (continued)
Analog Value Objects
Optional Properties Supported: None
Optional Writable Properties: Present_Value
Table 7. Analog Value Objects List
Object ID Object Name Units
1 Baud Rate Setting None 9600 76800 9600, 19200, 38400, 76800 38400 default
130 Heating Occupied Setpoint Deg. F 40 95 all
131 Cooling Occupied Setpoint Deg. F 40 95 all
132 Heating Unoccupied Setpoint Deg. F 40 95 all
133 Cooling Unoccupied Setpoint Deg. F 40 95 all
Networking Controllers
A network control panel (NCP) and NCP PC software can
be used to schedule building operation for any M2 on the
same daisy−chained l connection network.
The network thermostat controller (NTC) is an L connection direct digital controller used on units which are not
equipped with an M2 unit controller. The Building Control-
SYS BUS TERMINAL
BLOCK ON LENNOX
CONTROLLERS IMC
(M1−1 TO M1−6 L
SERIES)
− G +
SYS BUS TERMINAL
BLOCK ON LENNOX
CONTROLLERS IMC (M1−7,
M1−8, NTC, BC AND ZONE
CONTROLLERS)
− S + − S +
Min.
Value
Max.
Value
Valid Values
within Range
Note
For occupied and unoccupied setpoints considered separately, the
heating setpoint must be
lower than the cooling
setpoint by at least the
auto−changeover deadband value set in M2
(default 3 deg F). See
M2 Setup to change.
ler (BC) is used to control building functions such as lights
and signs. Use L connection specific network cable and
daisy chain as shown in figure 5.
Up to 31 controllers can be daisy chained on a single L connection network. Any combination of M2, NTC, and BC
controller can be used.
S−BUS TERMINAL
BLOCK ON LENNOX
PRODIGY M2 CONTROLLER ENERGENCE SERIES
CONTINUE WIRING TYP.
TO LAST CONTROLLER
SHIELD
CONNECT + TERMINAL OF NCP TO + TERMINALS ON ALL CONTROLLERS.
1
2
3
SHIELD
CONNECT − TERMINAL OF NCP TO − TERMINALS ON ALL CONTROLLERS.
DO NOT CONNECT THE CABLE SHIELD TO THE "G" TERMINAL ON M1−6 AND OLDER
SHIELD
SHIELD
ON NETWORK
Cable type − twisted pair
with shield, 22 awg minimum, Belden #88761 or
#8761 (Lennox 27M19,
94L63, 68M25).
Figure 5. L Connection® Network Daisy−chain Communication Wiring
Page 17
Page 18
Economizer (Damper)
General
The economizer, when configured, controls
Free Cooling Discharge Air Setpoint
When outdoor air conditions are suitable and economizer
is set to provide free cooling, dampers will modulate to
S damper position, which determines how much outdoor
air is used to meet free cooling or indoor air quality
(IAQ) requirements, and
S the optional power exhaust fans.
On a cooling demand, outdoor air is used for free cooling
instead of first−stage compressor(s) when outdoor air is
suitable (OAS).
Heartbeat LED
Flashing green LED indicates normal operation (See figure 6).
Outdoor Air Suitable (OAS) LED
A yellow LED which is labeled OAS provides economizer
status. A steady yellow LED indicates that outdoor air is
suitable for free cooling. A flashing yellow OAS light indicates the IAQ sensor requires outdoor air. (A flashing yellow LED can also mean that the economizer dampers are
open to bring in fresh air while a compressor is on.) If the
economizer is already operating, a flashing yellow OAS
light indicates the IAQ sensor requires more outdoor air
than is suitable for free cooling.
achieve a discharge air temperature of 55°F (13°C) default. This setpoint is adjustable between 45° and 65°F.
The setpoint can also be automatically increased when
outdoor or return air temperatures drop. See Outdoor Air
Reset and Return Air Reset in the Discharge Air Control
section in the advanced setup instructions. These settings
are not accessible through the Prodigy display at this time.
The unit does not have to be operating in discharge air
cooling mode to adjust the setpoint, or to use setpoint reset.
During free cooling operation, the damper modulates to its
maximum position where it remains for at least 3 minutes.
If the damper has been continuously in this position for at
least three minutes, then a second stage cooling demand
will be allowed to turn on the first stage of mechanical cooling. While the mechanical cooling is on, the damper is held
to its maximum position, and does not modulate until the
second stage demand is satisfied. On a third stage cooling
demand, the second stage of mechanical cooling will be
turned on.
Outdoor Air Suitability
There are six options available to determine outdoor air
suitability (OAS) for free cooling. See table 8. Economizer
DIP Switch Settings
The DIP switch setting determines the mode used to enable free cooling. The DIP switch also has a mode to set
the damper minimum position and test damper operation.
DIP switch is factory−set when the economizer is factory−
configured.
settings are shown for each mode in figure 7.
The appropriate sensors are provided when the economiz-
er is factory−configured. When the economizer is field−configured, the ODE mode requires additional field−provided
sensor(s). See table 8. The TEMP mode uses sensors provided with all units.
Table 8. Free Cooling Options
DIP SW
Free cooling mode
Temperature offset 1,2 to TMP TEMP OFFSET OAT<RAT−OFFSET (0 to 40 F)
Temperature setpoint 1,2 to TMP TEMP OAT STPT OAT<OAT STPT (41 to 70 F)
Remote 1,2 to TMP TEMP ANY OAS sent by network.
Enthalpy differential (Potentiometer set to DIFF) 1,2 to ODE ENTH N/A ODE<IDE
Enthalpy setpoint (Potentiometer set to A−D) 1,2 to ODE ENTH N/A ODE<POT
Global input 1,2 to GLO GLOBAL N/A GLO input
positions
MODE
Selection
CONTROL
Selection
OAS setpoint calc if CONTROL
is SENSIBLE
Page 18
Page 19
Economizer (Damper) (Continued)
Mode Outdoor air is suitable for free cooling when:
TEMP OFFSET Outdoor air temperature (RT17) is less than return air temperature (RT16) by at least the OFFSET value.
TEMP OAT STPT Outdoor air temperature (RT17) is less than the OAT STPT value.
Either of the TEMP modes can be used when a network OAS signal is provided by an energy management or building
Remote
ENTH (differential) Outdoor air enthalpy* (A7) is less than return air enthalpy (A62). Enthalpy setpoint potentiometer is set to DIFF
ENTH (setpoint) Outdoor air enthalpy (A7) is less than enthalpy setpoint potentiometer position A, B, C, or D.
GLOBAL
Enthalpy includes effects of both temperature and humidity.
LED FLASHING GREEN
HEARTBEAT" LED INDICATES
NORMAL OPERATION
control system, via BACnet, LonTalk, or L Connection. The network can command OAS, NOT OAS, or AUTO. AUTO
returns to local control of OAS, which is the selected TEMP mode..
Global input is energized by (P297−9). This setting is also used for outdoor air damper applications. Global input also
brings on the blower. (This mode is NOT used when OAS signal is provided via network connection. GLO is only used
when a 24VAC signal is used to energize the P297−9 GLO input.)
M2 UNIT CONTROLLER
STEADY YELLOW OUTDOOR
AIR SUITABLE" LED INDICATES
OUTDOOR AIR CAN BE USED
FOR COOLING
Note−All economizer modes of operation, except DSET, will modulate dampers to 55°F (13°C) discharge air.
ODE DIFFERENTIAL
(Outdoor Enthalpy)
C
B
A
ENTH SET PNT
D
Set to DIF
DIF
Figure 6. Economizer controls
TEMP OFFSET,
TEMP OAT STPT, and
Remote MODE.
ODE
(Outdoor Enthalpy)
Set to A
Figure 7. Economizer free cooling settings
C
B
A
ENTH SET PNT
ECON DIP SWITCH
0−100%
MINIMUM
POSITION
POTENTIOMETER
GLO
(Global Enthalpy)
D
DIF
Page 19
Page 20
APPENDIX
Abbreviations
A55 M2 board. Main controller board for RTU
A59 C2 board. Second compressor add−on board
A133 GP1 Board. General purpose add−on board DIP selects 3 func-
tions
AI Analog input
AO Analog output
BL Blower
BRPM Blower RPM
C2 2nd compressor add−on board (A59)
C1 1st stage cooling
C2 2nd stage cooling
C3 3rd stage cooling
C4 4th stage cooling
CAI Combustion air inducer
CAVB Constant air volume with bypass damper
COM Electrical common
CLK Clock
CP1 Compressor 1
CP2 Compressor 2
CP3 Compressor 3
CP4 Compressor 4
CSP Cooling setpoint
DAC Discharge (supply) air control
DACC Discharge (supply) air control cooling
DACH Discharge (supply) air control heating
DAP Discharge (supply) air pressure
DAT Discharge (supply) air temperature
DB Deadband
DCV Demand controlled ventilation
DDC Direct Digital Controller
DI Digital input
Diff Differential
DIP DIP switch
DPOS Damper position
DO Digital output
ECON Economizer
ECTO Electronic configure to order (control parameters)
FAC Fresh air cooling control
FAH Fresh air heating control
FAT Fresh air tempering control. See FAC & FAH
FC Free cooling
G Thermostat demand, blower
GLO Global mode or input (economizer)
GP1 General purpose board GP1−1 (A133)
H1 1st stage heating
H2 2nd stage heating
H3 3rd stage heating
H4 4th stage heating
HP1 Heat pump add−on board (A61)
HP High pressure
HSP Heating setpoint
HT Heating
IAQ Indoor air quality. Often synonymous with CO2 level in ppm
IDE Indoor enthalpy. Depends on temperature and humidity
IE Indoor enthalpy.
w.c. Inches of water column
LCONN L Connection
LED Light emitting diode. An indicator light, found either as individual
elements or grouped together as segments to form characters
LP Low pressure
LT Limit
M2 Main M2 unit controller board (A55).
MCB1 Motor control board
MGV Modulating gas valve
MOAD Motorized outdoor air damper
MSAV Multi Stage Air Volume
OAC Outdoor air control
OAS Outdoor air suitable for free cooling
OAT Outdoor air temperature
OCP Thermostat demand, occupied mode
ODE Outdoor enthalpy. Depends on temperature and humidity
OE Outdoor enthalpy.
PID Proportional, integral and derivative based control loop
PPM Parts per million (mostly used for CO2 measurements)
RAP Return air pressure
RAT Return air temperature
RH Relative humidity
RS Reset
RTU Roof top unit
RT6 Discharge air temperature sensor
RT16 Return air temperature sensor
RT17 Outdoor air temperature sensor
SMK Smoke detection mode (alarm)
SP Setpoint
Stg Stage
STPT Setpoint
TB Terminal block
TSTAT Thermostat
UNOCP Unoccupied
USB Universal Serial Bus, connect to PC or flash drive
W1 Thermostat demand, heat stage 1
W2 Thermostat demand, heat stage 2
W3 Thermostat demand, heat stage 3
W4 Thermostat demand, heat stage 4
VAC Alternating current voltage
VAV Variable air volume. Accomplished with a variable frequency
drive (VFD)
VDC Direct current voltage
VFD Var. frequency drive. An AC inverter used to vary motor speed
VT Ventilation
Y1 Thermostat demand, cooling stage one
Y2 Thermostat demand, cooling stage two
Y3 Thermostat demand, cooling stage three
Y4 Thermostat demand, cooling stage four
ZAT Zone air temperature
Table 9. Service parts available for Prodigyt Controller
Catalog
Description
M2 Unit Controller Replacement kit 59W47 M2 USB service kit tube 59W52 SmartWiret Field Termination kit 59W57
DB1−0 M2 Display Replacement kit 59W48 M2−1 Display battery (10−pack) 59W53 SmartWiret Repair Tool kit 59W58
DB1−1 M2 Display Replacement kit 59W49 M2−1 Fuse (2−Amp ATC, 5−pack) 59W54 Lennox Prodigyt USB Memory
MCB1 M2 Motor Control Replacement kit
M2 BACnett Replacement kit 59W51 M2 Training board (no suitcase,
number
59W50 M2 Deluxe Training kit (suitcase,
Description
UC, USB kit, expert manual, M2,
trainer)
USB, or M2)
Page 20
Catalog
number
59W55 Service Software & Expert Manual
59W56
Description
Stick (5−pack)
on USB
Catalog
number
59W59
59W60
Page 21
USB Service Report Example
USB SERVICE REPORT
==========================================================================
Service Date 09/10/2009
Service Time 13:22:01
Serial No. SN NOT SET
M2 Version 7.00.00
DB1 Version 1.00
Unit No. 12
Unit Address 1
BACnet Address. 1
CAT No. CN NOT SET
Description No Description
Unit Status COOLING
==========================================================================
Runtime Data
Total Power On 95 HRS 1 CYCLES
Before Install 95 HRS −−−−−−−
Filter 50 HRS −−−−−−−
Belt 50 HRS −−−−−−−
Blower 50 HRS 13 CYCLES
Compressor 1 21.5 HRS 12 CYCLES
Compressor 2 0 HRS 0 CYCLES
Compressor 3 0 HRS 0 CYCLES
Compressor 4 0 HRS 0 CYCLES
Outdoor Fan 1 21.5 HRS 12 CYCLES
Outdoor Fan 2 0 HRS 0 CYCLES
Outdoor Fan 3 0 HRS 0 CYCLES
Outdoor Fan 4 0 HRS 0 CYCLES
Outdoor Fan 5 0 HRS 0 CYCLES
Outdoor Fan 6 0 HRS 0 CYCLES
Heat Stage 1 0 HRS 0 CYCLES
Heat Stage 2 0 HRS 0 CYCLES
Reheat 0 HRS 0 CYCLES
Free Cooling 0 HRS 0 CYCLES
UV Lamp 0 HRS −−−−−−−
==========================================================================
Sensor Data
OAT : 85 degF
RAT : 78 degF
DAT : 55 degF
ZAT : 76 degF
RH : 58 %
CO2 : 320 ppm
==========================================================================
Alarm/Status Log
(12) 09.10.2009 12:34:27 COMP 1 HIGH PRESS S4
(32) 09.10.2009 12:34:26 COMP 1 FRZSTAT OPEN S49
(50) 09.10.2009 12:34:25 PRIMARY HEAT 1 LIMIT OPEN NOTE GAS OR ELECTRIC
(82) 09.10.2009 12:34:12 CONTROLLER RESET
==========================================================================
END OF REPORT
Page 21
Page 22
Page 22
Event
Code
Table 10. Alarm Codes
Initial Display Message 2nd level Display Message
0
1 Reserved
2 ALARM: CHECK SETTINGS CODE 2: RESET CONTROLLER. CHECK UNIT SETTINGS. CONTACT LENNOX IF PROBLEM PERSISTS.
3 Reserved
4 ALARM: SMOKE A17 CODE 4: SMOKE MODE. CHECK FOR SOURCE OF SMOKE.
5 ALARM: BLOWER S52 CODE 5: UNIT OFF. AIR FLOW SWITCH OPEN 16 SEC AFTER DEMAND. CHECK BLOWER PARTS
6 ALARM: FILTER S27 CODE 6: REPLACE FILTER OR CHECK FILTER SWITCH S27
7 ALARM: CONTROLLER PROBLEM CODE 7: RESET CONTROLLER. CHECK UNIT SETTINGS. CONTACT LENNOX IF PROBLEM PERSISTS.
8 ALARM: STRIKE 3 ON BLOWER S52 CODE 8: LOCKOUT. MULTIPLE CODE 5. CHECK BLOWER PARTS
9 −
11
Reserved
12 ALARM: COMP 1 HIGH PRESS S4 CODE 12: COMP OFF. CHECK CHARGE, FANS, COIL.
13 ALARM: STRIKE 3 ON COMP 1 HIGH PRESS S4 CODE 13: COMP LOCKOUT. CHECK CHECK CHARGE, FANS, COIL. USE SERVICE MENU TO CLEAR LOCKOUTS.
14 ALARM: COMP 2 HIGH PRESS S7 CODE 14: COMP OFF. CHECK CHARGE, FANS, COIL.
15 ALARM: STRIKE 3 ON COMP 2 HIGH PRESS S7 CODE 15: COMP LOCKOUT. CHECK CHECK CHARGE, FANS, COIL. USE SERVICE MENU TO CLEAR LOCKOUTS.
16 ALARM: COMP 3 HIGH PRESS S28 CODE 16: COMP OFF. CHECK CHARGE, FANS, COIL.
17 ALARM: STRIKE 3 ON COMP 3 HIGH PRESS S28 CODE 17: COMP LOCKOUT. CHECK CHARGE, FANS, COIL. USE SERVICE MENU TO CLEAR LOCKOUTS.
18 ALARM: COMP 4 HIGH PRESS S96 CODE 18: COMP OFF. CHECK CHARGE, FANS, COIL.
19 ALARM: STRIKE 3 ON COMP 4 HIGH PRESS S96 CODE 19: COMP LOCKOUT. CHECK CHECK CHARGE, FANS, COIL. USE SERVICE MENU TO CLEAR LOCKOUTS.
20 ALARM: UNIT SHUTDOWN A42 CODE 20: CHECK PHASE MONITOR
21 ALARM: STRIKE 3 UNIT SHUTDOWN A42 CODE 21: CHECK PHASE MONITOR
22 ALARM: COMP 1 LOW PRESS S87 CODE 22: COMP OFF. CHECK CHARGE, FILTERS, AIR FLOW. COIL
23 ALARM: STRIKE 3 ON COMP 1 S87 CODE 23: COMP LOCKOUT. CHECK CHECK CHARGE, FILTER, AIR FLOW, COIL. USE SERVICE MENU TO CLEAR LOCKOUTS.
24 ALARM: COMP 2 LOW PRESS S88 CODE 24: COMP OFF. CHECK CHARGE, FILTERS, AIR FLOW. COIL
25 ALARM: STRIKE 3 ON COMP 2 S88 CODE 25: COMP LOCKOUT. CHECK CHECK CHARGE, FILTER, AIR FLOW, COIL. USE SERVICE MENU TO CLEAR LOCKOUTS.
26 ALARM: COMP 3 LOW PRESS S98 CODE 26: COMP OFF. CHECK CHARGE, FILTERS, AIR FLOW. COIL
27 ALARM: STRIKE 3 ON COMP 3 S98 COMP LOCKOUT. CHECK CHECK CHARGE, FILTER, AIR FLOW, COIL. USE SERVICE MENU TO CLEAR LOCKOUTS.
28 ALARM: COMP 4 LOW PRESS S97 CODE 28: COMP OFF. CHECK CHARGE, FILTERS, AIR FLOW. COIL
29 ALARM: STRIKE 3 ON COMP 4 S97 CODE 29: COMP LOCKOUT. CHECK CHECK CHARGE, FILTER, AIR FLOW, COIL. USE SERVICE MENU TO CLEAR LOCKOUTS.
30 ALARM: UNIT SHUTDOWN S149 CODE 30: CHECK OVERFLOW SW
31 ALARM: STRIKE 3 UNIT SHUTDOWN S149 CODE 31: CHECK OVERFLOW SW
32 ALARM: COMP 1 FRZSTAT OPEN S49 CODE 32: COMP OFF. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUTSIDE TEMP
33 ALARM: STRIKE 3 COMP 1 FRZSTAT OPEN S49 CODE 33: COMP LOCKOUT. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUTSIDE TEMP
34 ALARM: COMP 2 FRZSTAT OPEN S50 CODE 34: COMP OFF. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUTSIDE TEMP
35 ALARM: STRIKE 3 COMP 2 FRZSTAT OPEN S50 CODE 35: COMP LOCKOUT. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUTSIDE TEMP
36 ALARM: COMP 3 FRZSTAT OPEN S53 CODE 36: COMP OFF. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUTSIDE TEMP
37 ALARM: STRIKE 3 COMP 3 FRZSTAT OPEN S53 CODE 37: COMP LOCKOUT. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUTSIDE TEMP
38 ALARM: COMP 4 FRZSTAT OPEN S95 CODE 38: COMP OFF. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUTSIDE TEMP
39 ALARM: STRIKE 3 COMP 4 FRZSTAT OPEN S95 CODE 39: COMP LOCKOUT. CHECK FRZSTAT, AIR FLOW, CHARGE, COIL, FILTER, OUTSIDE TEMP
40 ALARM: RETURN AIR OVER HEAT LIMIT RT16 CODE 40: HEAT ABOVE SETPOINT. CHECK SPACE CONDITIONS OR SENSOR
41 ALARM: RETURN AIR UNDER COOL LIMIT RT16 CODE 41: COOL BELOW SETPOINT. CHECK SPACE CONDITIONS OR SENSOR
42 ALARM: UNIT SHUTDOWN S42 OR S135 CODE 42: CHECK EXT MTR OVERLOADS
43 ALARM: STRIKE 3 UNIT SHUTDOWN S42 OR S135 CODE 43: CHECK EXT MTR OVERLOADS
Page 23
Page 23
Table 10. Alarm Codes
Event
Code
2nd level Display MessageInitial Display Message
Event
Code
44 ALARM: GAS VALVE ON NO DEMAND GV1 CODE 44: UNIT OFF. GV1 POWER BUT NO DEMAND. CHECK GAS PRESS, GAS VALVE
45 ALARM: GAS VALVE ON NO DEMAND GV3 CODE 45: UNIT OFF. GV3 POWER BUT NO DEMAND. CHECK GAS PRESS, GAS VALVE
46 −
49
Reserved
50 ALARM: PRIMARY HEAT 1 LIMIT OPEN S10 CODE 50: HEAT SECT 1 PRIMARY HEAT LIMIT OPEN. CHECK AIR FLOW, LIMIT, AND WIRING.
51 ALARM: STRIKE 3 PRIMARY HEAT 1 LIMIT OPEN S10 CODE 51: HEAT SECT 1 PRIMARY HEAT LIMIT OPEN. CHECK AIR FLOW, LIMIT, AND WIRING.
52 ALARM: SECONDARY HEAT 1 LIMIT OPEN S21 CODE 52: HEAT SECT 1 SECONDARY HEAT LIMIT OPEN. CHECK AIR FLOW, LIMIT, AND WIRING.
53
ALARM: STRIKE 3 SECONDARY HEAT 1 LIMIT OPEN
S21
CODE 53: HEAT SECT 1 SECONDARY HEAT LIMIT OPEN. CHECK AIR FLOW, FILTER, LIMIT, AND WIRING.
54 ALARM: HEAT 1 ROLL OUT OPEN CODE 54: HEAT SECT 1 CHECK GAS ROLL OUT S47
ALARM: HEAT 1 S15 LIMIT OPEN CODE 54: HEAT SECT 1 LIMIT OPEN. CHECK AIR FLOW, LIMIT, AND WIRING.
55 ALARM: STRIKE 3 HEAT 1 ROLL OUT OPEN CODE 54: HEAT SECT 1 CHECK GAS ROLL OUT S47
ALARM: STRIKE 3 HEAT 1 S15 LIMIT OPEN CODE 54: HEAT SECT 1 LIMIT OPEN. CHECK AIR FLOW, LIMIT, AND WIRING.
56 ALARM: HEAT 1 CAI SWITCH S18 CODE 56: HEAT SECT 1 CHECK COMBUSTION AIR MOTOR & PROOF SWITCH
57 ALARM: STRIKE 3 HEAT 1 CAI SWITCH S18 CODE 57: HEAT SECT 1 OFF CHECK COMBUSTION AIR MOTOR & PROOF SWITCH
58 ALARM: HEAT 1 NO PROOF GAS VALVE GV1 CODE 58: HEAT SECT 1 CHECK IGNITION CONTROL, FLAME PROOF, GV1, GAS SUPPLY
59 ALARM: STRIKE 3 NO PROOF GAS VALVE GV1 CODE 59: HEAT SECT 1 CHECK IGNITION CONTROL, FLAME PROOF, GV1, GAS SUPPLY
60 ALARM: PRIMARY HEAT 2 LIMIT OPEN S99 CODE 60: HEAT SECT 2 PRIMARY HEAT LIMIT OPEN. CHECK AIR FLOW, LIMIT, AND WIRING.
61 ALARM: STRIKE 3 PRIMARY HEAT 2 LIMIT OPEN S99 CODE 61: HEAT SECT 2 PRIMARY HEAT LIMIT OPEN. CHECK AIR FLOW, LIMIT, AND WIRING.
62 ALARM: HEAT 2 LIMIT OPEN S100 CODE 62: HEAT SECT 2 SECONDARY HEAT LIMIT OPEN. CHECK AIR FLOW, LIMIT, AND WIRING.
63 ALARM: STRIKE 3 HEAT 2 LIMIT OPEN S100 CODE 63: HEAT SECT 2 SECONDARY HEAT LIMIT OPEN. CHECK AIR FLOW, FILTER, LIMIT, AND WIRING.
64 ALARM: HEAT 2 ROLLOUT OPEN S69 CODE 64: CHECK ROLLOUT SENSOR AND GAS
65 ALARM: HEAT 2 ROLLOUT OPEN S69 CODE 65: CHECK ROLLOUT SENSOR AND GAS
66 ALARM: HEAT 2 CAI SWITCH S45 CODE 66: HEAT SECT 2 CHECK COMBUSTION AIR MOTOR & PROOF SWITCH
67 ALARM: STRIKE 3 HEAT 2 CAI SWITCH S45 CODE 67: HEAT SECT 2 OFF CHECK COMBUSTION AIR MOTOR & PROOF SWITCH
68 ALARM: HEAT 2 NO PROOF GAS VALVE GV3 CODE 58: HEAT SECT 2 CHECK IGNITION CONTROL, FLAME PROOF, GV3, GAS SUPPLY
69 ALARM: STRIKE 3 NO PROOF GAS VALVE GV3 CODE 59: HEAT SECT 2 CHECK IGNITION CONTROL, FLAME PROOF, GV3, GAS SUPPLY
70 −
72
Reserved
73 ALARM: NETWORK SENSOR ERROR CODE 73: CHECK WITH INTEGRATOR FOR REFRESH RATE, NETWORK STATUS LIGHTS AND WIRING
74 ALARM: ZONE SENSOR A2 CODE 74: CHECK ZONE SENSOR AND WIRING
75 ALARM: OUTDOOR TEMP SENSOR RT17 CODE 75: CHECK SENSOR AND WIRING
76 ALARM: HUMIDITY SENSOR A91 CODE 76: CHECK SENSOR AND WIRING
77 ALARM: DISCHARGE AIR TEMP SENSOR RT6 CODE 77: CHECK SENSOR AND WIRING
78 ALARM: RETURN AIR TEMP SENSOR RT16 CODE 78: CHECK SENSOR AND WIRING
79 ALARM: ADD−ON BOARD PROBLEM CODE 79: ADD−LN BRD PROBLEM, RESET TO CLEAR
80 ALARM: ADD−ON BOARD PROBLEM CODE 80: ADD−LN BRD PROBLEM, RESET TO CLEAR
81 ALARM: REHEAT SETUP ERROR CODE 81: CHECK REHEAT SETTINGS
82 ALARM: CONTROLLER RESET CODE 82: NO ACTION NEEDED
83 ALARM: INCORRECT SETTINGS CODE 83: CHECK CONFIGURATION
84 Reserved
85 ALARM: INCORRECT HUMIDITROL SETTINGS CODE 83: CHECK HUMIDITROL SETTINGS
86 ALARM: CONFLICTING TSTAT INPUT CODE 86: CHECK TSTAT INPUTS FOR SIMULTANEOUS HEAT AND COOL AND WIRING
Page 24
Page 24
Table 10. Alarm Codes
Event
Code
2nd level Display MessageInitial Display Message
Event
Code
87 Reserved
88 ALARM: CONTROLLER PROBLEM CODE 88: INTERNAL CONTROLLER PROBLEM. RESET TO CLEAR.
89 Reserved
90 ALARM: CONTROLLER PROBLEM CODE 90: INTERNAL CONTROLLER PROBLEM. RESET TO CLEAR.
91 ALARM: OUTDOOR ENTH SENSOR A7 CODE 91: CHECK ECON DIP SWITCH AND ENTH DIAL SETTINGS, SENSOR AND WIRING
92 ALARM: INDOOR ENTH SENSOR A62 CODE 92: CHECK ECON DIP SWITCH AND ENTH DIAL SETTINGS, SENSOR AND WIRING
93 ALARM: BACKUP MODE CODE 93: CHECK SENSORS, T−STATS AND WIRING
94 ALARM: BAD ZONE SENSOR SETPOINT CODE 94: CHECK SETPOINT AND EMS PROGRAMMING
95 ALARM: SETTINGS HAVE CHANGES CODE 95: SETTINGS HAVE CHANGED AT THE UNIT
96 Reserved
97 Reserved
98 ALARM: CONTROLLER PROBLEM CODE 98: INTERNAL CONTROLLER PROBLEM. RESET TO CLEAR.
99 −
102
Reserved
103 ALARM: ADVANCED CONTROL SETUP ERROR CODE 103: CHECK PRODIGY SETTINGS
104 Reserved
105 ALARM: ADVANCED ECON CONTROL SETUP ERROR CODE 105: CHECK ECON SWITCHES, DIALS, AND PRODIGY SETTINGS
106 −
109
Reserved
110 ALARM: WAITING ON NETWORK DATA CODE 110: CHECK NETWORK OR COMFORT SENSOR AND WIRING
111 ALARM: CONTROLLER PROBLEM CODE 111: INTERNAL CONTROLLER PROBLEM. RESET TO CLEAR.
112 ALARM: CONTROLLER PROBLEM CODE 112: INTERNAL CONTROLLER PROBLEM. RESET TO CLEAR.
113 Reserved
114 ALARM: CONTROLLER PROBLEM CODE 114: POWER NOISE PROBLEM. RESET TO CLEAR.
115 ALARM: UNIT OFFLINE FOR TEST CODE 115: CHECK PRODIGY SERVICE TEST MODE
116 Reserved
117 Reserved
118 ALARM: NO DISPLAY CODE 118: DISPLAY NOT DETECTED
119 Reserved
120 ALARM: ADD−ON BOARD MCB PROBLEM CODE 120: MCB CONFIGURATION SETUP PROBLEM. RESET TO CLEAR OR ADVANCED SETUP.
121 −
127
Reserved
128 −
255
Reserved
Page 25
Page 25
Wiring Diagrams (036, 048, 060 Units)
Lennox Commercial
COOLING
DESCRIPTION
KEY COMPONENT
A42
MONITOR, PHASE PROTECTION
A55
CONTROL, MAIN PANEL LENNOX
A169
PANEL, MOTOR CONTROL
B1 COMPRESSOR 1
B3
MOTOR, BLOWER
B4
MOTOR, OUTDOOR FAN
B10
MOTOR, EXHAUST FAN
C5
CAPACITOR, COMPRESSOR
C6
CAPACITOR, EXHAUST FAN
C7
CAPACITOR, COMPRESSOR HARD START
CB8
CIRCUIT, BREAKER
CB10
CIRCUIT BREAKER, MAIN DISCONNECT UNIT
CB31
CIRCUIT BREAKER, TRANSFORMER T43
HR1
HEATER, COMPRESSOR
J3
JACK, ECONOMIZER BYPASS
J11
JACK, GFI RECEPTICLE
J18
JACK, EXHAUST FAN
J24
JACK, EXHAUST FAN
J43
JACK, BLOWER MORTOR
J49
JACK, MOTOR VARIABLE SPEED
J259
JACK, ECM MOTORS
J260
JACK, BLOWER,COMP TWO SPEED CONTROL
J263
JACK, HIGH AND LOW PRESSURE SWITCHES
J264
JACK, BLOWER DECK
J265
JACK, CONTACTORS AND RELAYS
J267
JACK, OUTDOOR FAN AREA
J268
JACK, TRANSFORMER 1 POWER
J269
JACK, HUMIDITROL
J299B
JACK, HUMIDITROL INTERFACE
K1,−1 CONTACTOR, COMPRESSOR
K31
RELAY, HARD START KIT
K65−1,2 RELAY, EXHAUST FAN
L14
VALVE, SOLENOID REHEAT COIL 1
L34
SOLENOID, TWO STAGE
P3
PLUG, ECONOMIZER BYPASS
P18
PLUG, EXHAUST FAN
P24
PLUG, EXHAUST FAN
P43
PLUG, BLOWER MOTOR
P49
PLUG, MOTOR VARIABLE SPEED
P259
PLUG, ECM MOTORS
P260
PLUG, BLOWER, COMP TWO SPEED CONTROL
P263
PLUG, HIGH AND LOW PRESSURE SWITCHES
P264
PLUG, BLOWER DECK
P265
PLUG, CONTACTORS AND RELAYS
P267
PLUG,OUTDOOR FAN AREA
P268
PLUG, TRANFORMERS
P269
PLUG, HUMIDITROL
P299
PLUG, SAFETY INTERFACE
RT17
SENSOR, OUTDOOR AIR
S4
SWITCH, LIMIT HI PRESS
S11
SWITCH, LOW PRESS, LOW AMBIENT KIT
S40
THERMOSTAT, CRANKCASE
S48
SWITCH, DISCONNECT
S49
SWITCH, FREEZESTAT
S87
SWITCH, LOW PRESS, COMPRESSOR 1
T1
TRANSFORMER, CONTROL
T4
TRANSFORMER, BLOWER MOTOR
T43
TRANSFORMER, REHEAT
K65−1
7
4
L1
T1
T43
T43
L14
L30
DI 1
DI 2
A55
K1−1
L2
T2
K65−2
9
6
Page 26
Page 26
Wiring Diagrams (ACCESSORIES)
Lennox Commercial
ACCESSORIES
F/A
1
3
P298−8 (DO−1) IS SERVICE RELAY OUTPUT (24VAC)
IF USED CONNECT TO AN INDICATOR LIGHT
FOR MOTORS WITH S42 AND S135 EXTERNAL OVERLOAD L
E
INVERTER, SEE INVERTER WITH BY PASS FOR S42 HOOK UP
REMOTE LOCATION OF RT6
DESCRIPTION
KEY
COMPONENT
A2
SENSOR, ELECTRONIC THERMOSTAT
A42
MONITOR, PHASE PROTECTOR
A55
PANEL, MAIN
A63
SENSOR, CO2 (IAQ) OPTIONAL
A91
SENSOR, HUMIDITY
A171
SENSOR ONE, SMOKE, RETURN AIR
A172
SENSOR TWO, SMOKE, SUPPLY AIR
A173
MODULE, CONTROL SMOKE DETECTION
J99
JACK, RT16 RETURN AIR SENSOR
J100
JACK, RT6 SUPPLY AIR SENSOR
J250
JACK, SMOKE DETECTOR ONE
J251
JACK, SMOKE DETECTOR ONE
J252
JACK, SMOKE DETECTOR TWO
J253
JACK, SMOKE DETECTOR TWO
J255
JACK, MODULE, CONTROL SMOKE DETECTION
J261
JACK, SUPPLY SMOKE DETECTOR JUMPER
J262
JACK, ECONOMIZER
J264
JACK, BLOWER DECK
J297
JACK, THERMOSTAT − DDC INTERFACE
J298
JACK, IAQ INTERFACE
J299
JACK, SAFETY INTERFACE
K27, −1 RELAY, TRANSFER
K55,−1 RELAY, BLOWER
P99
PLUG, RT16 RETURN AIR SENSOR
P100
PLUG, RT6 SUPPLY AIR SENSOR
P250
PLUG, SMOKE DETECTOR ONE
P251
PLUG, SMOKE DETECTOR ONE
P252
PLUG, SMOKE DETECTOR TWO
P253
PLUG, SMOKE DETECTOR TWO
P255
PLUG, MODULE, CONTROL SMOKE DETECTION
P262
PLUG, ECONOMIZER
P264
PLUG, BLOWER DECK
P297
PLUG, THERMOSTAT − DDC INTERFACE
P298
PLUG, IAQ INTERFACE
P299
PLUG, SAFETY INTERFACE
P304
PLUG, SYS BUS
RT6
SENSOR, SUPPLY AIR TEMP
RT16
SENSOR, RETURN AIR TEMP
S27
SWITCH, FILTER
S52
SWITCH, AIRFLOW
S42
SWITCH, OVERLOAD RELAY BLOWER MOTOR LO
S86
SWITCH, DEHUMIDISTAT
S135
SWITCH, OVERLOAD RELAY BLOWER MOTOR HI
S149
SWITCH, OVERFLOW
A63
K27
A
B
A2
Y1
Y2
Y3
K27−1
1
7
TO PROVIDE THREE COMPRESSOR STAGES.
REQUIRES3 HEAT, 3 COOLTHERMOSTAT
AND K27 RELAY.
K55
B
A
K55−1
7
5
2
S86
J264A
1
2
J262B
5
6
RT6
RT6
RT16
3
A172
J253
A173
P255
P255
J250 J252
P250
P252
P253
J255
16 3 4
J255
2
S42
1
S149
J262C
10
11
12
P297
P298
J298A
1
2
B
3
4
C
5
6
7
P299
D
8
9
10
J299A
1
2
3
B
4
5
C
6
7
10
J100
1
4
P100
J99
1
4
P99
D
8
9
J297A
1
2
B
3
4
5
6
7
8
C
9
10
A91
VO
VIN
GND
J299A
1
2
J297A
7
6
2
R
OCP
C
G
W1
W2
Y1
Y2
24 V COMMON
24 V POWER
4
4
S52
S27
J264C
6
7
8
S135
USE S86 DEHUMIDISTAT AND K55 FOR OPTIONAL
SUPERMARKET REHEAT SCHEME, M2 PARAMETERS NEED T
O
MODIFIEDUNDERTHESETTINGSMENUORVIA UCSOFTWARE
FOR SIMULTANEOUS HEATING AND COOLING.
2
THERMOSTAT HOOKUP FOR PROGRAMMABLE CONFIGURAT
OF THE M2 BOARD (A55).
5
5
6
W1
W2
P262
P262P264C
R
C
AI−1
HUM
TMP
DO−1
C
DO−2
DI−1
R
C
DI−2
R
DI−3
R
DI−4
C
A55
P304
6
M2 SETTINGS MUST BE MODIFIED WHEN A42, S42, S52, S135
OR S149 ARE INSTALLED
7
7
A42 USED ON 036 THROUGH 72 UNITS ONLY
A171
J251
P251
J261
1
2
3
4
8
CONNECT A172 SENSOR TO J261 ON SUPPLY AIR SMOKE
DETECTOR ONLY
8
R
OCP
C
G
W1
W2
Y1
Y2
TO R
TO G
TO Y1
TOPROVIDESUPERMARKETREHEATSCHEME
USE S86 DEHUMIDISTAT AND K55.
ALL OTHER THERMOSTAT
SIGNALSREMAINCONNECTED
AS SHOWN ON THE RIGHT.
TO M2 THERMOSTAT INPUTS
2
2
Page 27
Page 27
Wiring Diagrams (ACCESSORIES)
S42
S149
P299J299A
1
2
3
B
4
5
C
6
7
10
D
8
9
S135A
DI−1
R
C
DI−2
R
DI−3
R
DI−4
C
P304
USE DI3 TO CONNECT:
1. OVERFLOW SWITCH
2. PHASE MONITOR MODULE
USE DI2 TO CONNECT:
1. OVERLOAD CONTACTS
A42
J298
8
9
10
P153
J153
1
3
2
4
5
6
P193
J104
2
1 1
J193
2
TB37
1
3
2
4
K1
K2
K4
5
6
A130
5
6
Page 28
Page 28
Wiring Diagrams (240, 300 Units)
NOTE − IF ANY WIRE IN THIS APPLIANACE IS REPLACED
IT MUST BE REPLACED WITH WIRE OF LIKE SIZE,
RATING, TERMINATION AND INSULATION THICKNESS.
WARNING − ELECTRIC SHOCK HAZARD, CAN CAUSE
INJURY OR DEATH . UNIT MUST BE GROUNDED IN
ACCORDANCE WITH NATIONAL AND LOCAL CODES.
DISCONNECT ALL POWER BEFORE SERVICING.
S42 USED ON ”M” VOLTAGE UNITS AND
UNITS WITH HIGH EFFICIENCY MOTORS
ONLY ON UNITS WITH HUMIDITROL
OPTION
T43
T43
L14
L30
DI 1
DI 2
A55
EXTERNAL HUMIDITROL CONTACTS
F6 AND F10 FUSES ARE USED ON ”Y”
VOLTAGE UNITS ONLY
S49 AND S50 ARE PART OF 5VDC CIRCUIT
Page 29
Page 29
KEY COMPONENT KEY COMPONENT
A55 PANEL, MAIN K2,−1 CONTACTOR, COMPRESSOR 2
A59 PANEL, COMPRESSORS 3 AND 4 K3, −1 CONTACTOR, BLOWER
B1 COMPRESSOR 1 K10,−1,2 RELAY, OUTDOOR FAN 1
B2 COMPRESSOR 2 K14,−1 CONTACTOR, COMPRESSOR 3
B3 MOTOR, BLOWER K65−1,2 RELAY, EXHAUST FAN
B4 MOTOR, OUTDOOR FAN 1 K68,−1 RELAY, OUTDOOR FAN 2
B5 MOTOR, OUTDOOR FAN 2 K146,1 CONTACTOR, COMPRESSOR 4
B10 MOTOR, EXHAUST FAN 1 K149,−1 RELAY, OUTDOOR FAN 3
B11 MOTOR, EXHAUST FAN 2 K150,−1 RELAY, OUTDOOR FAN 4
B13 COMPRESSOR 3 K152,−1 RELAY, OUTDOOR FAN 5
B20 COMPRESSOR 4 K153,−1,2 RELAY, OUTDOOR FAN 6
B21 MOTOR, OUTDOOR FAN 3 L14 VALVE, SOLENOID REHEAT COIL 1
B22 MOTOR, OUTDOOR FAN 4 L30 VALVE, SOLENOID REHEAT COIL 2
B23 MOTOR, OUTDOOR FAN 5 P18 PLUG, EXHAUST FAN COMP
B24 MOTOR, OUTDOOR FAN 6 P24 PLUG, EXHAUST FAN
C1 CAPACITOR, OUTDOOR FAN 1 P47 PLUG, OUTDOOR FAN 1
C2 CAPACITOR, OUTDOOR FAN 2 P52 PLUG, OUTDOOR FAN 2
C6 CAPACITOR, EXHAUST FAN 1 P86 PLUG, OUTDOOR FAN INTERFACE
C8 CAPACITOR, EXHAUST FAN 2 P87 PLUG, OUTDOOR FAN INTERFACE 2
C18 CAPACITOR, OUTDOOR FAN 3 P106 PLUG, OUTDOOR FAN 3
C19 CAPACITOR, OUTDOOR FAN 4 P107 PLUG, OUTDOOR FAN 4
C20 CAPACITOR, OUTDOOR FAN 5 P108 PLUG, OUTDOOR FAN 5
C21 CAPACITOR, OUTDOOR FAN 6 P109 PLUG, OUTDOOR FAN 6
CB8 CIRCUIT, BREAKER T1 P118 PLUG, COMPRESSOR 3 AND 4, CONTROL
CB10 CIRCUIT BREAKER, MAIN DISCONNECT UNIT P119 PLUG, COMPRESSOR 3 AND 4, INPUT
CB18 CIRCUIT, BREAKER T18 P132 PLUG, EXHAUST FAN MOTOR 1
F6 FUSE, EXHAUST FAN P133 PLUG, EXHAUST FAN MOTOR 2
F10 FUSE, OUTDOOR FAN MOTOR P138 PLUG, EXHAUST FAN 2
F30 FUSE, TRANSFORMER T29 PRIMARY P263 PLUG, HIGH AND LOW PRESSURE SWITCHES
F31 FUSE, TRANSFORMER T29 SECONDARY P264 PLUG, BLOWER DECK
HR1 HEATER COMPRESSOR 1 P265 PLUG, CONTACTORS AND RELAYS
HR2 HEATER COMPRESSOR 2 P267 PLUG,OUTDOOR FAN AREA
HR5 HEATER COMPRESSOR 3 P268 PLUG, TRANFORMERS
HR11 HEATER COMPRESSOR 4 P269 PLUG, HUMIDITROL
J11 JACK, GFI, RECEPTACLE P299 PLUG, SAFETY
J18 JACK, EXHAUST FAN COMP RT17 SENSOR, OUTDOOR AIR
J24 JACK, EXHAUST FAN S4 SWITCH, LIMIT HI PRESS COMPRESS 1
J47 JACK, OUTDOOR FAN 1 S7 SWITCH, LIMIT HI PRESS COMPRESS 2
J52 JACK, OUTDOOR FAN 2 S11 SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 1
J86 JACK, OUTDOOR FAN INTERFACE S28 SWITCH, LIMIT HI PRESS COMPRESS 3
J87 JACK, OUTDOOR FAN INTERFACE 2 S42 SWITCH, OVERLOAD RELAY BLOWER MOTOR
J106 JACK, OUTDOOR FAN 3 S48 SWITCH, DISCONNECT
J107 JACK, OUTDOOR FAN 4 S49 SWITCH, FREEZE STAT COMPRESS 1
J108 JACK, OUTDOOR FAN 5 S50 SWITCH, FREEZE STAT COMPRESS 2
J109 JACK, OUTDOOR FAN 6 S53 SWITCH, FREEZE STAT COMPRESS 3
J118 JACK, COMPRESSOR 3 AND 4, CONTROL S84 SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 2
J119 JACK, COMPRESSOR 3 AND 4, INPUT S85 SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 3
J132 JACK, BLOWER , EXHAUST FAN MOTOR 1 S87 SWITCH, LOW PRESS, COMP 1
J133 JACK, BLOWER , EXHAUST FAN MOTOR 2 S88 SWITCH, LOW PRESS, COMP 2
J138 JACK, EXHAUST FAN 2 S94 SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 4
J139 JACK, EXHAUST FAN 3 S95 SWITCH, FREEZE STAT COMPRESS 4
J263 JACK, HIGH AND LOW PRESSURE SWITCHES S96 SWITCH, LIMIT HI PRESS COMPRESS 4
J264 JACK, BLOWER DECK S97 SWITCH, LOW PRESS, COMP 4
J265 JACK, CONTACTORS AND RELAYS S98 SWITCH, LOW PRESS, COMP 3
Page 30
24 VAC COM24VAC
3
3
2
MS 9413−10−409
P298 P299
MS 9413−10−408
Table 11. M2 unit controller signal reference diagram
6
22 32323323
P297
+
S
S − BUS
−
S2
MS 9413−10−407MS 9413−03−401
1 R TRANSFORMER 1 24VAC POWER 24VAC Header & Label MS 9413−10−011
2 C TRANSFORMER 1 24V COMMON 24V COMM − Header MSLO 9408−010−576−960−000−00
Pin # Label Description Type Description Part Number
P297 Thermostat Assembly MS 9413−10−407
3 G BLOWER SIGNAL 24VAC DI − Label MZ 9400−10−007
4 W1 1ST STAGE HEATING 24VAC DI Screw terminal MF 9306−002−0A−002−G
5 W2 2ND STAGE HEATING 24VAC DI Screw terminal MF 9306−006−43−000−G
6 Y1 1ST STAGE COOLING 24VAC DI Screw terminal MF 9306−002−49−000−G
7 Y2 2ND STAGE COOLING 24VAC DI
8 OCP OCCUPIED SIGNAL 24VAC DI
9 GLO GLOBAL CONTROL INPUT 24VAC DI
10 RSV RESERVED NA
P298 IAQ Interface Assembly MS 9413−10−408
Page 30
1 R TRANSFORMER 1 24VAC POWER 24VAC Header & Label MS 9413−10−012
2 C TRANSFORMER 1 24V COMMON 24V COMM − Header MSLO 9408−S10−000
3 IAQ+ INDOOR AIR QUALITY 0−10VDC AI − Label MZ 9400−10−008
4 GND INDOOR AIR QUALITY 0−10VDC AI Screw terminal MF 9306−002−60−000−G
5 HUM RH SENSOR 0−10VDC AI Screw terminal MF 9306−002−64−000−G
6 GND DIGITAL GROUND GND Screw terminal MF 9306−003−4D−000−G
7 TMP ZONE SENSOR 0−10VDC AI Screw terminal MF 9306−003−4L−000−G
8 DO1 SERVICE RELAY OUTPUT 24VAC DO
9 GND 24 VAC COMMON 24V COMM
10 DO2 EXHAUST FAN 24VAC DO
1 DI1 SMOKE DETECTOR (NO) 24VAC DI Header & Label MS 9413−10−013
2 R TRANSFORMER 1 24VAC POWER 24VAC − Header MSLO 9408−010−075−960−000−00
3 C TRANSFORMER 1 24V COMMON 24V COMM − Label MZ 9400−10−009
4 DI2 DIGITAL INPUT 2 FORMER (S42 & S135) 24VAC DI Screw terminal MF 9306−003−0H−000−G
5 R TRANSFORMER 1 24VAC POWER 24VAC Screw terminal MF 9306−002−0P−002−G
P299 Safety Assembly MS 9413−10−409
6 DI3 DIGITAL INPUT 3 FORMER (S149 & A42 FOR A BOX) 24VAC DI Screw terminal MF 9306−002−37−001−G
7 R TRANSFORMER 1 24VAC POWER 24VAC Screw terminal MF 9306−003−01−000−G
8 DI4 DIGITAL INPUT 4 FORMER (HUMIDITROL INPUT) 24VAC DI
9 C TRANSFORMER 1 24V COMMON 24V COMM
10 RSV RESERVED NA
Page 31
P270 DISPLAY PCB
SW 24 VAC
SW 24 VAC
SW 24 VAC
SW 24 VAC
SW 24 VAC
SW 24 VAC
SW 24 VAC
SW 24 VAC
Table 12. M2 board connections diagram
10
RES 0−5 VDC
8 S18 Cab Proof Switch 1
RES 0−5 VDC
12 K65 Relay Exhaust Fan 24 VAC DO 5 T1 2 4 VAC Transformer 1 24 VAC
24 VAC
Power
4 R 24 VAC 24 VAC DO P272 Heating 2 Safety
RES 0−5 VDC
1 R 24VAC Power 24 VAC
2 GND Digital Ground 24 VAC COM
3 VOT Damper Control 2−10 VDC DO
Pin# Label Description Type
P262 Economozer control
4 DPOS Damper Position Feedback 2−10 VDC DI
5 GND Digital Ground
6 RT16+ Return Air Temp 7 K68 Relay Outdoor Fan 2 24 VAC DO 5 RSV Reserved 24 VAC DI
7 A7 S Outdoor Enthalpy Sensor 4−20 mA AI 8 COM 24 VAC Common COM P270 Sensor Board
8 20 VDC 10 Volts DC Power 20 VDC 9 K13 Relay Combustion Air Blower 1 24 VAC DO 1 + RS−485 Communication BUS
9 A62 S Indoor Enthalpy Sensor 4−20 mA AI 10 K19 Relay Combustion Air Blower 2 24 VAC DO 2 − RS−485 Communication BUS
11 T1 Smoke Detector 24V
10 A173 Smoke Detector 24 V DI 11 COM 24 VAC Common COM 3 COM 24 VAC Common Transformer 1 24 VAC COM
12 COM Smoke Detector 24 Common P266 Heating Control P271 Heating 1 Safety
P263 High $ Low Pressure 1 COM 24 VAC Common 24 VAC COM 1 S10−C Primary Limit Burner 1 C
1 L1 Reversing Valve 24 VAC DO 2 A3, K15 Heat 1, Electric Heat 1 24 VAC DO 2 S10−NC Primary Limit Burner 1 NC
2 COM 24 VAC Common 24 VAC COM 3 W2, K16 Heat 2, Electric Heat 2 24 VAC DO 3 S10−NC Primary Limit Burner 1 NO
3 S4 High Pressure Compressor 1 SW 24 VAC 4 COM 24 VAC Common 24 VAC COM 4 S21−C Secondary Limit Burner 1 C
4 T1 24VAC Power 24 VAC 5 A12, K17 Heat 3, Electric Heat 3 24 VAC DO 5 S21−NC Secondary Limit Burner 1 NC
5 S87 Low Pressure Compressor 1 NC SW 24 VAC 6 W2, K15 Heat 4, Electric Heat 4 24 VAC DO 6 S47 Rollout Switch Burner 1 C
6 S7 High Pressure Compressor 2 SW 24 VAC P267 Outdoor Fan Area 7 S47 Rollout Switch Burner 1 NC
Page 31
7 T1 24VAC Power 24 VAC 1 RT17 Outdoor Air Temp
8 S88 Low Pressure Compressor 2 SW 24 VAC 2 GND Digital Ground 9 S18 Cab Proof Switch 1
1 RT6 Discharge Air Temp
P264 Blower Deck Area 3 S11 Low Pressure Fan 1 SW 24 VAC 10 GV1 Gas Valve Sense 1 24 VAC DI
2 GND Digital Ground 5 S84 Low Pressure Fan 2 SW 24 VAC 1 S99−C Primary Limit Burner 2 C
3 S49 Freezestat 1 (NC) SW 5 VDC 6 S6 Defrost Temp SW 5 VDC 2 S99−NC Primary Limit Burner 2 NC
4 VSS 5VDC 5 VDC 7 VSS 5VDC 5 VDC 3 S99−NO Primary Limit Burner 2 NO
5 S50 Freezestat 2 (NC) SW 5 VDC 8 S46 Defrost Pressure 1 SW 5 VdC 4 S100−C Secondary Limit Burner 2 C
6 S52 Air Flow Switch (NO) SW 5 VDC P268 Power 5 S100−NC Secondary Limit Burner 2 NC
7 VSS 5VDC 5 VDC 1 T1−1 24 VAC Power Transformer 1 24 VAC 6 S69 Rollout Switch Burner 2 C
8 S27 Dirty Filter Switch (NO) SW 5 VDC 2 T1−COM 24 VAC Common Transformer 1 24 VAC COM 7 S69 Rollout Switch Burner 2 NC
1 COM 24 VAC Common 24 VAC COM 4 T18−COM 24 VAC Common 24 VAC COM 9 S45 Cab Proof Switch 2
2 K1 Contactor Compressor 1 24 VAC DO P269 Reheat − Humiditrol 10 GV3 Gas Valve Sense 2 24 VAC DI
3 K2 Contactor Compressorr 2 24 VAC DO 1 T43 24 VAC Power 24 VAC
4 K3 Contactor Blower 24 VAC DO 2 T43 24 VAC Common 24 VAC COM
P265 Contactors / Relays 3 T18−1 24 VAC Power Transformer 1 24 VAC 8 S45 Cab Proof Switch 2
5 COM 24 VAC Commo 24 VAC COM 3 L14 Reheat Solenoid 1 24 VAC DO
6 K10 Relay Outdoor Fan 1 24 VAC DO 4 L30 Reheat Solenoid 2 24 VAC DO
Page 32
Page 32
Quick Start Guide
CAUTION
Check rooftop unit electrical power for proper voltage and phasing. Check gas train components.
1. Turn on unit, correct alarm issues as necessary.
2. Set unit number and clock under SETTINGS −> UNIT menu (see Page 11).
3. Setup Control Mode under SETTINGS −> CONTROL per below table.
4. Be sure unit is in normal operating mode as seen in display (COOLING, HEATING, IDLE, etc).
5. Conduct unit startup to verify operation under SERVICE−> TEST menu (see Page 8).
6. Insert USB memory stick into display cover to verify service and collect unit information.
Control Mode Menu Setup Needed Tips
THERMOSTAT
(Factory set for 2 stage thermostat)
S Check 2 AMP fuse if wiring error.
S Check LEDs for signals.
S Check ground switch position.
LOCAL MODE
Change default backup setpoints; see
SETTINGS −> CONTROL −> LOCAL
(Page 12).
S Give unit time to startup, error codes 74 and 93
are expected.
S Humidity control requires sensor or error code 76
MSAV
Change motor torque; see
SETTINGS −> CONTROL −> LOCAL
(Page 13).
S Use LENNOX MSAV trained technician.
S Final motor CFM needs to be set by Test and
Balance technician
S Blower charts are located in unit EHB.
BACnet
Select control mode; see
SETTINGS −> CONTROL −> BACNET
(Page 13).
S Setup information to be verified with integrator.
S Follow wiring instructions including network
termination
S Remember to set MAC address 0−127
S Expert level BACnet service manual available.
LonTalk
Select control mode; see
SETTINGS−> CONTROL −> LONTALK
(Page 13).
S Setup information to be verified with integrator.
S Follow wiring instructions including network
termination
S XIF file available. Neuron ID on sticker.
S Expert level LonTalk service manual available.
L Connection
Select control mode; see
SETTINGS −> CONTROL −> LCONN
(Page 12).
S Follow wiring instructions including network
termination
S Comfort Sensors are 24 VAC polarity sensitive.
S All network devices need to be correctly
addressed
Damper
Select control mode; see
SETTINGS −> SETPOINTS −> DAMPER
(Page 12).
S Verify damper minimum positions
S Refer to Economizer section of manual for more
detail
Reheat
Select sensor type; see
SETTINGS −> CONTROL −> REHEAT
(Page 13).
S Two possible connections, SENSOR and
HUMIDISTAT
S Analog sensor wiring is polarity sensitive
For Lennox Service Support 1−800−4LENNOX
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