BK BLACK GR GREEN
WH WHITE BR BROWN
YL YELLOW RD RED
OR ORANGE BL BLUE
Variable Speed Inducer and Blower Motor
Hod
Heat Off Delay (sec)
E6.1
Voltage reversed polarity
Status Codes
15d
Inter-Stage Delay (sec)
E6.2
Bad Grounding
IdL
Idle
9HC
Gas Heating CFM (Airflow x10)
E6.3
(1) Igniter relay fails, (2) Igniter open
Ht1
Gas Heating
rUn
Run Test Mod
e
E7.1
1st s
tage gas valve (MVL) is energized when it should be off
ArF
Airflow (followed by
Airflow x 10)
Error
Codes
E7.2
Redun
dant Relay (HLO output) energized when it should be off
E01
Loss of the IRQ/other internal failures
E08
Flame current is low, but still strong enough to allow operation.
COF
Continuous Fan
E2.1
Retry exceeded (Failed to est flame)
One hour lockout time
E10
Inducer motor no communication response. Possibly caused by a
communication failure between two microcontrollers.
CL1
1st Stage Cooling
CL2
2nd Stage Cooling
E2.2
Recycles exceeded (loss of established
flame). One hour lockout time
E11
(1) 1st stage gas valve energized when it should not be
(2) 1st stage gas valve not energized when it should be
(3) Redundant relay (HLO output) not energized when it should be
HP1
1st Stage Heat Pump
HP2
2nd Stage Heat Pump
E2.3
1st Stage Gas Valve not energized when
it should be. One hour lockout time
dFt
Defrost Mode
E12
Open fuse
Menu Options
E2.4
HLO relay not energized when it should be
One hour lockout time
E13
Blower HP/OEM ID
Err
Active Alarm Menu
E14
No PM and local copy bad
L6.F
Last 6 Faults (To Clear,
Hold Option Button 5 sec)
E3.1
Signal Not Present <0.25V @ 5.0V
supply BK(VCC)-RD(GND)
E15
Both Unit Data File in PM and local Unit
Data File are Corrupt
Cr
Code Release Number
E3.2
Signal Out of Bounds >4.25V @ 5.0V
supply BK(VCC)-RD(GND)
E17
Blower motor no communication response
D346645P01 REV D
COd
Cooling Off Delay (sec)
E18
Blower communication failure on the control
ODT
Outdoor Tonnage
E3.3
Insufficient Pressure Pressure Less than
Target >10 seconds BK(VCC)-RD(GND)
0dU
Outdoor Unit
C0F
Blower Constant Fan Airflow
Multiplier %
E04
Open Thermal Limit, Burner Box Limit,
or Reverse Airflow Switch
CPC
Cooling (CFM/Ton)
E05
Flame detected, should not be present
CPH
Heat Pump Heating (CFM/Ton)
WH/16
WH/16
WH/20
BK/21
BL/2
BL/2
BL/4
BL/4
RD/5
RD/5
GR/6
WH/11
GR/YL/29
GR/YL/29
BK/28
BK/28
L8V1
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
IGN OUTPUT: 2.0 A @ 120 VAC
CIRC. BLOWER OUTPUT:
14.5 FLA, 25 LRA @ 120 VAC
HUMIDIFIER & AIR CLEANER 120VAC
OUTPUT MAX. LOAD: 1.0 A @ 120 VAC
FUSE
: 5A
TIMINGS
PREPURGE: 30 SEC.
INTERPURGE: 60 SEC.
POST PURGE: 5 SEC.
IGN WARMUP: 20 SEC.
IAP:
2 SEC.; TFI: 5 SEC.
RETRIES: 6 RECYCLES: 10
HEAT ON DELAY: 30 SEC.
COOL ON DELAY: 0 SEC.
AUTO
RESTART: 60 MIN.
INTEGRATED FURNACE CONTROL
LINE
24 V
LINE
24 V
FIELD
WIRING
}
}
FACTORY
WIRING
RAF REVERSE
AIR FLOW
PT PRESSURE
TRANSDUCER
FP FLAME PROBE
IGN HOT SURFACE
IGNITER
** INTERNAL THERMAL
PROTECTION
FUSE
GROUND
PANEL LOOP
FP FLAME PROBE
GND GROUND
H LINE
HLI HIGH LIMIT INPUT
HLO HIGH LIMIT OUTPUT
IFC INTEGRATED FURNACE CONTROL
IGN IGNITER
IND INDUCER
MV MAIN VALVE
MVC MAIN VALVE COMMON
MVH MAIN VALE HIGH
MVL MAIN VALVE LOW
N NEUTRAL
RAF REVERSE AIRFLOW
Rx RECEIVE SIGNAL
TH 24VAC (HOT)
TNS TRANSFORMER
TR 24VAC (COMMON)
Tx TRANSMIT SIGNAL
VCC COMMON COLLECTOR VOLTAGE
WH/14
WH/14
WH/15
WH/15
YL/10
YL/10
BK/13
BK/13
BK/12
BK/12
BK/35
53/KB
BK/27
LC LINE CHOKE
YL/31
GR/BK/30
RD/34
BK/32
BK/27
RD/34
GR/BK/30
GR/6
YL/9
YL/9
SEE NOTE 9
BK
THERMAL LIMIT
YL/44
YL/42
YL/43
GR/41
GR/41
WH/40
WH/40
BK/39
BK/39
BK/38
BK/38
WH/37
WH/37
WH/36
WH/36
BL/35
BL/35
YL/45 YL/45
YL/3
YL/3
RD/7
RD/7
BR/8
BR/8
BK/32
BK/17
BK/17
RD/18
RD/18
WH/19
WH/19
BK/23
32/KB
WH/24
42/HW
WH/25
52/HW
BL/26
BL/26
YL/22
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 105ºC.
2. FOR PROPER AIRFLOW IN COOLING/HEAT PUMP MODES, Y1 AND/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. THE "BK" JUMPER MUST BE CUT WHEN APPLYING AN AIRFLOW COMMAND TO THE "BK" TERMINAL SUCH AS PULSE WIDTH MODULATION OR WHEN
PAIRED WITH A VSPD OD UNIT.
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. CORRECT PERSONALITY MODULE IS REQUIRED FOR PROPER FURNACE OPERATION AND IS SPECIFIC TO EACH MODEL & SERIAL NUMBER. IT IS TO
REMAIN WITH THE ORIGINAL UNIT.
9. LINE CHOKE AND WIRE BK/35 ONLY USED ON MODELS WITH 1 HP MOTORS.
10. THERMAL LIMIT SWITCH 1 IS FOR UPFLOW, RIGHT SIDE RETURN ONLY ON C100 MODEL.
11. THERMAL LIMIT SWITCH 2 AND WIRE 31 ONLY PRESENT IN C100 MODEL.
SEE NOTES 2, 3, 4, 5
SEE NOTE 6
GR/33 GR/33
JUMPER
SEE NOTE 4
SEE NOTE 10
X X
24v
120v
TNS
GAS
VALVE
1
2
3
IGN
X
FLAME PROBE
X
1 2 3 4 5 6 7 8 9 10 11 12
2
1
LINE CHOKE
1 2 3 4
THERMAL-LIMIT-1
1
2
3
4
X
JUNCTION BOX
120v 60 Hz. 1 PH
POWER SUPPLY PER LOCAL CODE
H N
GND
PRESSURE
TRANSDUCER
1
2
3
4
BBOX-LIMIT
1
2
1
2
1 2 3
BLOWER
MOTOR
AC
AC
GND
2JPR
1JPR
GND
Rx
Tx
12V
RAF-1
4
3
2
1
1
2
3
4
5
RAF-2
121110987654321
BK W1 R G B/C Y2 Y1 O
THERMOSTAT
LINE
NEUTRAL
5AMP
MENU
OPTION
EAC
HUM
GND 3
FP
IFC
BK JUMPER
E47
E21
E19
E23
E25
E26
E39
E32
1 IND-(W)
2 IND-(V)
3 IND-(U)
4 N/A
E12
1 12V
2 RX
3 GND
4 TX
E14
E5
N 1
H 2
E18
VCC 1
PI 2
12 N/A
11 HLI
9 MVL
8 GND
10 MVH
7 N/A
6 TH
5 MVC
4 HLO
1 N/A
2 TR
3 N/A
PERSONALITY
MODULE
BK
W1
R
G
B/C
Y2
Y1
O
12
11
10
9
8
7
6
5
4
3
2
1
1
2
3
4
4
3
2
1
2
1
1 2 3
4
3
2
1
1
2
3
THERMAL-LIMIT-2
VENT
MOTOR
(INDUCER)
**
SEE NOTE 11
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