Lennox Prodigy M2 Application Manual page 99

20. M2 Unit Controller Inputs and Outputs
When necessary, individual inputs and outputs may be read at the M2 board connectors. M2 boards are shown on wiring
diagrams as dashed boxes (see shaded areas in figure 40). Parts of the M2 boards will be located in all wiring diagram
sections (see Page 102 for connector information and description and type of input or output).
Example: To Determine If 24 Volts Is Being Supplied To The K3 Blower Contactor:
1. Using the unit wiring diagram, locate K3 and identify appropriate M2 board and jack/plug. (A55 Main Board and P265−4.)
2. Find the I&O table for P265−4 ; it shows a 24 volt output to the blower.
1 S42 USED ON M" VOLTAGE UNITS
AND UNITS WITH HIGH EFFICIENCY
MOTORS
2 ONLY ON UNITS WITH HUMIDITROL
OPTION
3 EXTERNAL HUMIDITROL CONTACTS
4 CONNECTS TO SECTION A" HEATING
DIAGRAM. MAY BE LOCATED IN
HEATING COMPARTMENT
5 S49 AND S50 ARE PART OF 5VDC CIR-
CUIT
6 F37 AND F38 ARE NOT USED ON
UNITS LESS ELECTRIC HEAT, 480
AND 600V
7 F37 AND S39 PRESSURE SWITCH
CONTROL
8 VOLTAGE CONTROL SINGLE STAGE
9 VOLTAGE CONTROL TWO STAGE
10 REMOVE JUMPER
TB24−28 AND TB24−29 WHENEVER
ALC CONTROL IS USED. REFER TO
SECTION C DIAGRAM
11 A30 SENSOR AND A96 INVERTER
CONTROL FOR B3 SUPPLY AIR
BLOWER
12 A34 SENSOR AND A137 INVERTER
CONTROL FOR B35 AND B36 EX-
HAUST AIR BLOWERS
13 A30 MAY BE USED WITH OR WITHOUT
A34
A34 MAY BE USED WITH OR WITHOUT
A30
A34 MAY BE USED WITH OR WITHOUT
B9 BYPASS DAMPER
A34 MAY BE USED WITH EITHER A96
VFD OR B9 BYPASS DAMPER
14 MITSUBISHI VFD
15 K202−1 CONTACTOR
OMITTED ON UNITS WITH VFD OP-
ERATION ONLY
16 USED ON VFD APPLICATIONS
NOTE − IF ANY WIRE IN THIS APPLIANCE 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.
DENOTES OPTIONAL COMPONENTS
LINE VOLTAGE FIELD INSTALLED
DESCRIPTION
KEY COMPONENT
SENSOR, PRESSURE DISCHARGE AIR
A30
SENSOR, PRESSURE RETURN AIR
A34
A55 PANEL, MAIN PANEL LENNOX
PANEL, COMPRESSORS 3 AND 4
A59
CONTROL, INVERTER SUPPLY
A96
PANEL, GP BOARD LENNOX
A133
CONTROL, INVERTER RETURN
A137
B1 COMPRESSOR 1
B2 COMPRESSOR 2
MOTOR, BLOWER
B3
MOTOR, OUTDOOR FAN 1
B4
MOTOR, OUTDOOR FAN 2
B5
B13 COMPRESSOR 3
B20 COMPRESSOR 4
MOTOR, OUTDOOR FAN 3
B21
MOTOR, OUTDOOR FAN 4
B22
MOTOR, OUTDOOR FAN 5
B23
MOTOR, OUTDOOR FAN 6
B24
MOTOR, EXHAUST BLOWER 1
B35
MOTOR, EXHAUST BLOWER 2
B36
CIRCUIT, BREAKER T1
CB8
CB10 CIRCUIT BREAKER, MAIN DISCONNECT UNIT
CIRCUIT, BREAKER T18
CB18
BETWEEN
FUSE, OUTDOOR FAN MOTOR
F10
FUSE, TRANSFORMER T29 PRIMARY
F30
FUSE, TRANSFORMER T29 SECONDARY
F31
FUSE, COMPRESSOR GROUP 1
F37
FUSE, COMPRESSOR GROUP 2
F38
HR1 HEATER COMPRESSOR 1
HR2 HEATER COMPRESSOR 2
HR5 HEATER COMPRESSOR 3
HR11 HEATER COMPRESSOR 4
JACK, GFI, RECEPTACLE
J11
JACK, OUTDOOR FAN INTERFACE
J86
JACK, OUTDOOR FAN INTERFACE 2
J87
JACK, COMPRESSOR 3 AND 4, CONTROL
J118
JACK, COMPRESSOR 3 AND 4, INPUT
J119
JACK, BLOWER , EXHAUST FAN MOTOR 1
J132
JACK, BLOWER , EXHAUST FAN MOTOR 2
J133
JACK, EXHAUST FAN 2
J138
JACK, EXHAUST FAN 3
J139
JACK, I/O FOR A133 LENNOX A133 BOARD
J194
JACK, INVERTER EXHAUST BLOWER
J211
JACK, VFD CONTROL
J248
MAY BE
JACK, VFD CONTROL EXHAUS AIR
J258
J263 JACK, HIGH AND LOW PRESSURE SWITCHES
JACK, BLOWER DECK
J264
JACK, CONTACTORS AND RELAYS
J265
JACK, OUTDOOR FAN AREA
J267
J268 JACK, TRANSFORMER 1 POWER
JACK, HUMIDITROL
J269
JACK, HUMIDITROL INTERFACE
J299
K1,−1 CONTACTOR, COMPRESSOR 1
K2,−1 CONTACTOR, COMPRESSOR 2
K3, −1 CONTACTOR, BLOWER
Wiring Diagram Key (see figure 40)
20.
K10,−1,2 RELAY, OUTDOOR FAN 1
K14,−1
K68,−1
K146,1
K149,−1
K150,−1
K152,−1
K153,−1,2 RELAY, OUTDOOR FAN 6
K199,−1
K201,−1
K202, −1 CONTACTOR, INVERTER BLOWER
K203, −2 RELAY, SUPPLY BLOWER AUX
K207, −2 RELAY, EXHAUST BLOWER AUX
L14
L30
P86
P87
P118
P119
P194
P211
P248
P258
P263
P264
P265
P267
P268
P269
P299
RT17
S4
S7
S11
S28
S37
S39
S42
S48
S49
S50
S53
S84
S85
S87
S88
S94
S95
S96
S97
S98
S117
T1
T18
T29
TB13
TB18
TB23
TB24
TB40
TB41
TB47
TB58
TB59
Page 99
M2 Unit Controller Inputs and Outputs
CONTACTOR, COMPRESSOR 3
RELAY, OUTDOOR FAN 2
CONTACTOR, COMPRESSOR 4
RELAY, OUTDOOR FAN 3
RELAY, OUTDOOR FAN 4
RELAY, OUTDOOR FAN 5
CONTACTOR, EXHAUST BLOWER 1
CONTACTOR, EXHAUST BLOWER 2
VALVE, SOLENOID REHEAT COIL 1
VALVE, SOLENOID REHEAT COIL 2
PLUG, OUTDOOR FAN INTERFACE
PLUG, OUTDOOR FAN INTERFACE 2
PLUG, COMPRESSOR 3 AND 4, CONTROL
PLUG, COMPRESSOR 3 AND 4, INPUT
PLUG, I/O FOR A133 LENNOX A133 BOARD
PLUG, INVERTER EXHAUST BLOWER
PLUG, VFD CONTROL
PLUG, VFD CONTROL EXHAUS AIR
PLUG, HIGH AND LOW PRESSURE SWITCHES
PLUG, BLOWER DECK
PLUG, CONTACTORS AND RELAYS
PLUG,OUTDOOR FAN AREA
PLUG, TRANFORMERS
PLUG, HUMIDITROL
PLUG, SAFETY
SENSOR, OUTDOOR AIR
SWITCH, LIMIT HI PRESS COMPRESS 1
SWITCH, LIMIT HI PRESS COMPRESS 2
SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 1
SWITCH, LIMIT HI PRESS COMPRESS 3
SWITCH, PRESSURE EXHAUST FAN
SWITCH, EXHAUST FAN
SWITCH, OVERLOAD RELAY BLOWER MOTOR
SWITCH, DISCONNECT
SWITCH, FREEZE STAT COMPRESS 1
SWITCH, FREEZE STAT COMPRESS 2
SWITCH, FREEZE STAT COMPRESS 3
SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 2
SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 3
SWITCH, LOW PRESS, COMP 1
SWITCH, LOW PRESS, COMP 2
SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 4
SWITCH, FREEZE STAT COMPRESS 4
SWITCH, LIMIT HI PRESS COMPRESS 4
SWITCH, LOW PRESS, COMP 4
SWITCH, LOW PRESS, COMP 3
SWITCH, GFI
TRANSFORMER, CONTROL
TRANSFORMER, CONTACTOR
TRANSFORMER, GFI
TERMINAL STRIP, POWER DISTRIBUTION
TERMINAL STRIP, CYCLE CONTROL
TERMINAL STRIP, BLOWER SPEED
TERMINAL STRIP, UNIT ADDER
TERMINAL STRIP, COMPRESSOR 1
TERMINAL STRIP, COMPRESSOR 2
TERMINAL STRIP, COMPRESSOR 3
TERMINAL STRIP, EXAUST FANS
TERMINAL STRIP, INVERTER BY−PASS
PRODIGYT M2 UNIT CONTROLLER