18
S9V2-SF-2A-EN
S9V2 Wiring Diagram
BK
BLACK
OR ORANGE BR BROWN
WH WHITE
PR PURPLE
RD
RED
YL
YELLOW GR GREEN
BL
BLUE
Y
L
/4
4
YL/42
Y
L
/4
3
G
R
/4
1
GR/41
W
H
/4
0
WH/40
B
K
/3
9
BK/39
B
K
/3
8
BK/38
W
H
/3
7
WH/37
W
H
/3
6
WH/36
B
L
/3
5
BL/35
G
R
/3
2
2
3/
R
G
W
H
/1
6
W
H
/1
6
B
K
/2
8
BK/28
B
K
/2
3
BK/23
W
H
/2
4
WH/24
WH/25
W
H
/2
5
B
L
/2
6
BL/26
BK/14
B
K
/1
4
W
H
/1
7
W
H
/1
7
W
H
/1
5
WH/15
WH/21
WH/21
BK/22
BK/22
WH/20
RD/19
BK/18
PR/1
P
R
/1
BL/2
BL/2
Y
L
/3
Y
L
/3
PR/4
P
R
/4
BL/5
B
L
/5
RD/6
RD/6
BR/7
B
R
/7
BR/53
B
R
/5
3
RD/9
R
D
/9
G
R
/8
BR/10
B
R
/1
0
WH/12
PR/54
YL/50
YL/50
YL/49
YL/49
B
K
/1
3
BK/13
G
R
/Y
L
/3
1
G
R
/Y
L
/3
1
YL/51
YL/51
YL/48
YL/48
Y
L
/5
2
YL/52
B
K
/2
9
BK/29
OR/11
O
R
/1
1
YL/47
Y
L
/4
7
Y
L
/4
6
YL/46
TO BURNER BOX HARN
BK/30
B
U
R
N
E
R
B
O
X
G
N
D
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 & 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.
13. FLAME SENSE TEST PADS: 1 VDC = 1 MICROAMP. FLAME CURRENT
CAN VARY DEPENDING ON THE VOM THAT IS USED AND THE
VOLTAGE SUPPLIED TO THE FURNACE. THE ACCEPTABLE
RANGE IS 0.75-3 MICROAMPS.
S9V2
SEE NOTES 2, 3, 4, 5, 6,
BK/27
SEE NOTE 8
PANEL LOOP
G
R
/Y
L
GR/YL
YL/45
YL/45
SEE
NOTE 10
*SEE NOTE
12
FRS FLAME ROLLOUT
SWITCH
FP FLAME PROBE
IGN HOT SURFACE
IGNITER
FUSE
LC LINE CHOKE
GROUND
CONDENSATE
SWITCH
RAF REVERSE
AIR FLOW
BK JUMPER
PS PRESSURE
SWITCH
LINE
24V
24V
LINE
FACTORY
WIRING
FIELD
WIRING
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: 0 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.
AUTO RESTART PURGE: 60 SEC.
INTEGRATED FURNACE CONTROL
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
HI SECOND STAGE
LO FIRST STAGE
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
Status Codes
Idle
1st Stage Heating
2nd Stage Heating
Airflow (followed by
Airflow x 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
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 (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
Shorted Pressure Switch, 1st Stage
Open Pressure Switch, 1st Stage
Shorted Pressure Switch, 2nd Stage
Open Pressure Switch, 2nd Stage
Ht1
Ht2
ArF
COF
CL1
CL2
HP1
HP2
dFt
Err
L6
F
Cr
COd
Odt
Open Thermal Limit, Rollout Switch, or Reverse Airflow Switch
Flame detected, should not be present
Voltage reversed polarity
Bad Grounding
(1) Igniter relay fails, (2) Igniter open
1st stage gas valve (MVL) is energized when it should be off
Flame current is low, but still strong enough to allow operation.
Open Inducer Limit Switch or Condensate Switch
(1) 1st stage gas valve not energized when it should be
(2) 1st stage gas valve relay stuck closed
(3) 2nd stage gas valve relay stuck closed
(4) 2nd stage gas valve energized when it should not be
(5) 2nd stage gas valve not energized when it should be
Open fuse
Blower HP/OEM ID
No PM and local copy bad
Both Unit Data File in PM and local Unit
Data File are Corrupt
Blower motor no communication response
Blower communication failure on the control
OdU
COF
CPC
CPH
Hod
9HC
rUn
E01
2 Stage Inducer with ECM Blower Motor
E04
E05
E08
E09
E11
E12
E13
E14
E15
E17
E18
D346022P01 REV B
1
dL
1
Sd
X
X
BLOWER
MOTOR
AC
AC
GND
2JPR
1JPR
GND
Rx
Tx
12V
24v
120v
TNS
VENT
MOTOR
(INDUCER)
**
1
2
3
GAS
VALVE
1
2
3
RAF-1
IGN
PS1
PS2
X
X
INDUCER_LIMIT
THERMAL_LIMIT
FLAME_ROLLOUT2
FLAME_ROLLOUT1
FLAME_PROBE
LINE
CHOKE
FP
HLI
MVH
MVL
GND
PS2
TH
MVC
HLO
PS1
TR
ILI
T
N
S
-H
C
IR
C
-H
L
IN
E
-H
L
IN
E
-N
(b
lo
c
k
e
d
)
C
IR
C
-N
T
N
S
-N
IGN-N
IND-N
IND-LO
IND-HI
IGN-H
Tx
GND
Rx
12V
1
2
3
4
IFC
EAC
HUM
LINE
NEUTRAL
4
3
BK W2W1 R
G B/C Y2 Y1 O
THERMOSTAT
BK JUMPER
TO PERSONALITY MODULE
FP
1
2
1
2
3
MENU OPTION
1
2
3
12
11
10
9
8
7
6
5
4
3
2
1
1
2
3
4
1
2
3
4
5
1
2
1
2
3
4
1
2
3
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
12
11
10
9
8
7
6
5
4
3
2
1
2
1
E2
.
1
E2
.
2
E2
.
3
E3
.
1
E3
.
2
E3
.
3
E3
.
4
E6
.
1
E6
.
2
E6
.
3
E7
.
1
SEE NOTE 8
JUMPER
SEE NOTE 11
BL
BL
WH
WH
WH
WH
BK
BK
YL
GR
BR
BR
BL
BL
RD
RD
YL
YL
YL
BK
RD
WH
G
R
/Y
L
G
R
/Y
L
Y
L
GR
YL
YL
YL
WH
WH
BK
BK
W
H
WH
BK
B
K
WH
WH
BK
B
K
B
K
BK
BL
RD
BR
BR
BR
BR
BK
BK
WH
WH
PR
PR
PR
PR
PR
OR
OR
WH
BURNER
BOX GND
B
K
BK
BK
PANEL LOOP
YL
YL
VENT
MOTOR
(INDUCER)
**
1
2
3
IGN
ILI
TR
PS1
HLO
MVC
TH
PS2
GND
MVL
MVH
HLI
FP
BK W2 W1 R
G
B/C Y2 Y1 O
THERMOSTAT
LINE-H
CIRC-H
TNS-H
TNS-N
CIRC-N
LINE-N
IGN-H
IND-HI
IND-LO
IND-N
IGN-N
12V
Rx
GND
Tx
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
1
2
3
4
5
4
3
1
3
2
1
IFC
JUNCTION BOX
120v 60 Hz. 1 PH
POWER SUPPLY PER LOCAL CODE
H
N
GND
L
IN
E
C
H
O
K
E
J
U
M
P
E
R
24v
120v
TNS
G
A
S
V
A
L
V
E
1
2
3
FLAME_ROLLOUT1
FLAME_ROLLOUT2
RAF-1
THERMAL_LIMIT
INDUCER_LIMIT
PS2
CONDENSATE
BLOWER
MOTOR
AC
AC
GND
2JPR
1JPR
12V
Tx
Rx
GND
PS1
F
L
A
M
E
P
R
O
B
E
2
1
1
2
RAF-2
S9V2
