BK BLACK OR ORANGE BR BROWN
WH WHITE PR PURPLE RD RED
YL YELLOW GR GREEN BL BLUE
YL/44
YL/42
YL/43
GR/41
GR/41
WH/40
WH/40
BK/39
BK/39
BK/38
WH/37
WH/37
WH/36
WH/36
BL/35
BL/35
GR/32
GR/32
BK/28
BK/28
BK/23
BK/23
WH/24
WH/24
WH/25
WH/25
BL/26
BL/26
PR/1
PR/1
BL/2
BL/2
YL/3
YL/3
PR/4
PR/4
BL/5
BL/5
RD/6
RD/6
BR/7
BR/7
BR/53
BR/53
RD/9
RD/9
GR/8
BR/10
BR/10
PR/54
YL/50
YL/50
YL/49
YL/49
GR/YL/31
GR/YL/31
YL/51
YL/51
YL/48
YL/48
YL/52
YL/52
BK/29
BK/29
OR/11
OR/11
YL/47
YL/47
YL/46
YL/46
TO BURNER BOX HARN
BK/30
BURNER BOX GND
NOTES:
1. IF ANY OF THE ORIGINAL WIRING AS SUPPLIED WITH THIS FURNACE MUST BE REPLACED, IT MUST BE WITH WIRE HAVING A TEMPERATURE
RATING OF AT LEAST 105°C. WIRES 12, 48, 49, 50, AND 51 REQUIRE A TEMPERATURE RATING OF AT LEAST 250°C.
2. FOR PROPER AIRFLOW IN COOLING/HEAT PUMP MODES, Y1AND/OR Y2 MUST CONNECT FROM THE THERMOSTAT TO THE IFC LOW VOLTAGE TERMINAL STRIP.
3. FOR COOLING ONLY SYSTEMS, LEAVE Y1-O JUMPER IN PLACE ON THE IFC FOR CORRECT LED READOUT.
4. FOR HEATPUMP SYSTEMS, REMOVE THE Y1-O JUMPER, CONNECT "O" FROM THE THERMOSTAT TO "O" ON THE IFC LOW VOLTAGE TERMINAL STRIP FOR
CORRECT LED READOUT.
5. VSPD OD SYSTEMS REQUIRE DIFFERENT CONNECTIONS, SEE RELAY PANEL INSTRUCTIONS.
6. IF USING A SINGLE STAGE HEATING THERMOSTAT, JUMPER W1 AND W2 TERMINALS AT THE LOW VOLTAGE TERMINAL STRIP. HT2 WILL BE
SHOWN ON THE SEVEN SEGMENT DISPLAY AT ALL TIMES. SECOND STAGE OPERATION WILL BEGIN AFTER THE INTERSTAGE DELAY HAS COMPLETED.
7. AIRFLOW TABLES ARE LOCATED IN THE SERVICE FACTS. TO CHANGE AIRFLOW, REFER TO THE INTEGRATED FURNACE CONTROL MENU AND OPTIONS
TO SET AIRFLOW AND BLOWER DELAYS.
8. THE "BK" JUMPER MUST BE CUT WHEN APPLYING AN AIRFLOW COMMAND TO THE "BK" TERMINAL SUCH AS PULSE WIDTH MODULATION.
9. CORRECT PERSONALITY MODULE IS REQUIRED FOR PROPER FURNACE OPERATION AND IS SPECIFIC TO EACH MODEL AND SERIAL NUMBER. IT IS TO
REMAIN WITH THE ORIGINAL UNIT.
10. LINE CHOKE AND WIRE BK/28 ONLY USED ON MODELS WITH 1 HP MOTORS.
11. SOME MODELS WITH 3/4 HP MOTORS MAY USE JUMPER BETWEEN WIRES BK/27 AND BK/28.
12.
WIRE YL/45 AND RAF-2 ARE NOT PRESENT ON DOWNFLOW MODELS.
SEE NOTES 2, 3, 4, 5, 6
INTEGRATED FURNACE CONTROL
ELECTRICAL RATING
INPUT: 24 VAC, 60 HZ.
XFMR SEC. CURRENT: 450 MA. + MV LOAD
MV OUTPUT: 1.5A @ 24 VAC
IND OUTPUT:
2.2 FLA,3.5 LRA @ 120 VAC MAX.
IGN OUTPUT: 2.0 A @ 120 VAC
CIRC. BLOWER OUTPUT:
14.5 FLA,25 LRA @ 120 VAC
HUMIDIFIER & AIR CLEANER
(DRY CONTACTS)
MAX. LOAD: 1.0 A @ 120 VAC
24 VAC OR 120 VAC MAY BE USED
FUSE: 5A
TIMINGS
PREPURGE: 5 SEC.
INTERPURGE: 60 SEC.
POST PURGE: 5 SEC.
IGN WARMUP: 20 SEC.
IAP: 2; TFI: 5 SEC.
RETRIES: 2 RECYCLES: 10
HEAT ON DELAY: UP TO 30 SEC.
COOL ON DELAY: 0 SEC.
AUTO RESTART: 60 MIN.
LINE
24 V
LINE
24 V
FIELD
WIRING
FACTORY
WIRING
RAF REVERSE AIR FLOW
THERMAL LIMIT
INDUCER LIMIT
PS PRESSURE
SWITCH
FRS FLAME ROLLOUT
SWITCH
FP FLAME PROBE
IGN HOT SURFACE
IGNITER
** INTERNAL THERMAL PROTECTION
FUSE
LC LINE CHOKE
BK JUMPER
CONDENSATE
SWITCH
SEE NOTES 8
GROUND
PANEL LOOP
H LINE
N NEUTRAL
GND GROUND
HLO HIGH LIMIT OUTPUT
HLI HIGH LIMIT INPUT
PS1 1ST STAGE PRESSURE INPUT
PS2 2ND STAGE PRESSURE INPUT
IND INDUCER
IFC INTEGRATED FURNACE
CONTROL
RAF REVERSE AIR FLOW
Tx TRANSMIT SIGNAL
Rx RECEIVE SIGNAL
TH 24VAC (HOT)
TR 24VAC (COMMON)
MVC VALVE COMMON
MVL VALVE LOW STAGE
MVH VALVE HIGH STAGE
TNS TRANSFORMER
ILI INDUCER LIMIT INPUT
IGN IGNITER
FP FLAME PROBE
PSO PRESSURE SWITCH OUTPUT
YL/45
YL/45
SEE NOTE 10
*SEE NOTE 12
WH/21
BK/22
WH/
1
5
WH/15
WH/17
WH/17
BK/18
BK/18
RD/19
RD/19
WH/20
WH/20
GR/56
GR/56
WH/12
21/HW
FRS
FRS
BK/27
BK/27
BK/14
BK/14
BK
/13
BK/13
WH/16
WH/16
Variable Speed (3-Phase) Inducer w/ ECM Blower Motor
Outdoor Unit
Blower Constant Fan Airflow Multiplier %
Cooling (CFM/Ton)
Heat Pump Heating (CFM/Ton)
Heat Off Delay (sec)
Inter-Stage Delay (sec)
Gas Heating CFM 2nd Stage (1st Stage
is not adjustable) (Airflow x10)
Run Test Mode
Error Codes
Loss of the IRQ/other internal failures
Retry exceeded (Failed to est flame)
Recycles exceeded (loss of established
flame) or 10X PS1 open
1st Stage Gas Valve not energized when
it should be exceeded after 10 times
Redundant Relay (HLO output) Not
Energized when it should be
exceeded after 10 times
Shorted Pressure Switch, 1st Stage
Open Pressure Switch, 1st Stage
Shorted Pressure Switch, 2nd Stage
Open Pressure Switch, 2nd Stage
OdU
COF
CPC
CPH
HOd
9HC
rUn
E01
Status Codes
Idle
1st Stage Gas Heating
1st Stage Gas Heating
Learning Routine
2nd Stage Heating
2nd Stage Gas Heat
Learning Routine
Airflow (followed by
Airflow times 10)
Continuous Fan
1st Stage Cooling
2nd Stage Cooling
1st Stage Heat Pump
2nd Stage Heat Pump
Defrost Mode
Menu Options
Active Alarm Menu
Last 6 Faults (To Clear,
Hold Option Button 5 sec)
Code Release Number
Cooling Off Delay (sec)
Outdoor Tonnage
E04
E05
E06
E08
E09
E10
E11
E12
E13
E14
E15
E17
E18
Open Thermal Limit, Rollout Switch, or Reverse Airflow Switch
Flame detected, should not be present
Voltage reversed polarity or Bad Grounding
(1) Igniter relay fails, (2) Igniter open
1st stage gas valve (MVL) is energized when it should be off
Redundant Relay (HLO output) Energized when it should NOT
be
Flame current is low, but still strong enough to allow operation.
Open Inducer Limit Switch or Condensate Switch
Inducer Motor no communication response, could be
communication failure between two micro-controllers.
(1) 2nd stage gas valve energized when it should NOT be
(2) 2nd stage gas valve not energized when it should be
(3) 1st stage gas valve not energized when it should be
(4) Redundant relay (HLO output) not energized when it
should be
Open fuse
Blower HP/OEM ID
No PM and local copy bad
Both of Unit Data File in PM and local Unit
Data File are Corrupt
Blower motor no communication response
Blower communication failure on the control
D346055P01 REV B
Ht1
Lr1
HT2
Lr2
ArF
COF
CL1
CL2
HP1
HP2
dFt
Err
L6
F
Cr
COd
0dt
1
dL
X
X
BLOWER
MOTOR
AC
AC
GND
2JPR
1JPR
GND
Rx
Tx
12V
24v
120v
TNS
VENT
MOTOR
(INDUCER)
**
GAS
VALVE
1
2
3
RAF-1
IGN
PS1PS2
X
X
INDUCER_LIMIT
THERMAL_LIMIT
FLAME_ROLLOUT2
FLAME_ROLLOUT1
PSO
HLI
MVH
MVL
GND
PS2
TH
MVC
HLO
PS1
TR
ILI
LINE-N
(blocked)
CIRC-N
TNS-N
12V
Rx
GND
Tx
SCALE <VIEW SCALE>
IFC
EAC
HUM
NEUTRAL
4
BK W2W1 R G
B/C
Y2
Y1
O
THERMOSTAT
BK JUMPER
TO PERSONALITY MODULE
1
2
3
MENU OPTION
IGN-N
IGN-H
IND-U
IND-V
IND-W
LINE-H
CIRC-H
TNS-H
LINE
3
1
2
1
2
3
4
FP
12
11
10
9
8
7
6
5
4
3
2
1
1
2
3
4
1
2
4
3
2
1
3
2
1
1
2
2
1
4
3
2
1
1
2
3
4
5
1
2
1
2
3
CONDENSATE
JUNCTION BOX
120v 60 Hz. 1 PH
POWER SUPPLY PER LOCAL CODE
H N
GND
X
X
RAF-2
1 2 3 4 5 6 7 8 9 10 11 12
121110987654321
2
1
2
1
4
3
2
1
4
3
2
1
FLAME_PROBE
E2.1
E2.2
E2.3
E2.4
E3.1
E3.2
E3.3
E3.4
E6.3
E7.1
E7.2
LINE
CHOKE
JUMPER
SEE NOTE 11
S9V2-VS
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