Table of Contents
Advertisement
Wiring Diagrams
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 THIS DOCUMENT. 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.
CONDENSATE
INDUCER_LIMIT
PR/54
YL/52
PS2
PS1
GAS
VALVE
TNS
BL/2
WH/15
24v
120v
RD/6
BK/14
SEE
NOTE 10
LINE
JUMPER
CHOKE
BK/28
BK/27
SEE NOTE 11
LINE
EAC
HUM
3
2
1
SEE NOTE
13
FP
12
FP
BR/53
11
HLI
BR/10
10
MVH
RD/9
9
MVL
8
GND
7
BR/7
PS2
MENU OPTION
RD/6
6
TH
BL/5
5
MVC
PR/4
4
HLO
OR/11
3
PS1
BL/2
2
TR
PR/1
1
ILI
TO PERSONALITY MODULE
FLAME_PROBE
WH/12
IFC
BK W2W1 R G B/C Y2 Y1 O
SEE NOTE 8
THERMOSTAT
SEE NOTES 2, 3, 4, 5, 6,
BK JUMPER
FRS FLAME ROLLOUT
FUSE
SWITCH
FP FLAME PROBE
LC LINE CHOKE
IGN HOT SURFACE
IGNITER
GROUND
2 Stage Inducer with ECM Blower Motor
OdU
Status Codes
Outdoor Unit
1 dL
COF
Idle
Blower Constant Fan Airflow Multiplier %
Ht1
CPC
1st Stage Heating
Cooling (CFM/Ton)
Ht2
CPH
2nd Stage Heating
Heat Pump Heating (CFM/Ton)
ArF
Hod
Airflow (followed by
Heat Off Delay (sec)
1 Sd
Airflow x 10)
Inter-Stage Delay (sec)
COF
9HC
Continuous Fan
Gas Heating CFM (Airflow x10)
CL1
rUn
1st Stage Cooling
Run Test Mode
CL2
2nd Stage Cooling
Error Codes
E01
HP1
1st Stage Heat Pump
Loss of the IRQ/other internal failures
E2.1
HP2
2nd Stage Heat Pump
Retry exceeded (Failed to est flame)
dFt
Defrost Mode
E2.2
Recycles exceeded (loss of established
Menu Options
flame) or 10X PS1 open
Err
E2.3
Active Alarm Menu
1st Stage Gas Valve not energized when
L6 F
Last 6 Faults (To Clear,
it should be exceeded after 10 times
E3.1
Hold Option Button 5 sec)
Shorted Pressure Switch, 1st Stage
Cr
E3.2
Code Release Number
Open Pressure Switch, 1st Stage
COd
E3.3
Cooling Off Delay (sec)
Shorted Pressure Switch, 2nd Stage
E3.4
Odt
Outdoor Tonnage
Open Pressure Switch, 2nd Stage
A952V-SVX001-1B-EN
A952V
FLAME_ROLLOUT1
YL/47
YL/48
1
1
YL/46
YL/49
YL/50
2
2
TO BURNER BOX HARN
RAF-1
FLAME_ROLLOUT2
YL/45
YL/50
THERMAL_LIMIT
*SEE NOTE
RAF-2
12
YL/49
YL/45
1JPR
12V
1
1
2JPR
Tx
YL/42
2
2
BLOWER
GND
Rx
3
GR/41
3
MOTOR
AC
GND
4
WH/40
4
5
AC
BK/39
BL/35
WH/37
WH/36
BK/38
120v 60 Hz. 1 PH
POWER SUPPLY PER LOCAL CODE
JUNCTION BOX
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
X
X
X
BK/30
BK/13
2
2
BK/29
1
1
PANEL LOOP
NEUTRAL
1
1
4
3
2
1
2
2
3
3
IGN-N
5
WH/21
WH/21
1
WH/20
BK/22
IND-N
4
2
RD/19
IND-LO
3
BK/18
IND-HI
2
BK BLACK
BK/22
IGN-H
1
WH WHITE
YL YELLOW GR GREEN
4
WH/25
Tx
INTEGRATED FURNACE CONTROL
BK/23
GND
3
ELECTRICAL RATING
WH/24
Rx
2
INPUT: 24 VAC, 60 HZ.
BL/26
1
XFMR SEC. CURRENT: 450 MA.
12V
+ MV LOAD
H LINE
MV OUTPUT: 1.5A @ 24 VAC
Tx TRANSMIT SIGNAL
N NEUTRAL
IND OUTPUT: 2.2 FLA,3.5 LRA @
Rx RECEIVE SIGNAL
GND GROUND
120 VAC MAX.
TH 24VAC (HOT)
HLO HIGH LIMIT OUTPUT
IGN OUTPUT: 2.0 A @ 120 VAC
TR 24VAC (COMMON)
HLI HIGH LIMIT INPUT
CIRC. BLOWER OUTPUT: 14.5
MVC VALVE COMMON
FLA,25 LRA @ 120 VAC
PS1 1ST STAGE
MVL VALVE LOW STAGE
HUMIDIFIER & AIR CLEANER
PRESSURE INPUT
MVH VALVE HIGH STAGE
(DRY CONTACTS)
PS2 2ND STAGE
TNS TRANSFORMER
MAX. LOAD: 1.0 A @ 120 VAC
PRESSURE INPUT
ILI INDUCER LIMIT INPUT
24 VAC OR 120 VAC MAY BE
IND INDUCER
IGN IGNITER
USED
IFC INTEGRATED
FP FLAME PROBE
FUSE: 5A
FURNACE CONTROL
HI SECOND STAGE
RAF REVERSE AIR FLOW
LO FIRST STAGE
TIMINGS
PREPURGE: 0 SEC.
INTERPURGE: 60 SEC.
PS PRESSURE
CONDENSATE
POST PURGE: 5 SEC.
SWITCH
SWITCH
IGN WARMUP: 20 SEC.
IAP: 2; TFI: 5 SEC.
LINE
FACTORY
RETRIES: 2 RECYCLES: 10
RAF REVERSE
WIRING
HEAT ON DELAY: UP TO 30 SEC.
24V
AIR FLOW
COOL ON DELAY: 0 SEC.
LINE
AUTO RESTART: 60 MIN.
FIELD
WIRING
AUTO RESTART PURGE: 60 SEC.
24V
BK JUMPER
E04
Open Thermal Limit, Rollout Switch, or Reverse Airflow Switch
E05
Flame detected, should not be present
E6.1
Voltage reversed polarity
E6.2
Bad Grounding
E6.3
(1) Igniter relay fails, (2) Igniter open
E7.1
1st stage gas valve (MVL) is energized when it should be off
E08
Flame current is low, but still strong enough to allow operation.
E09
Open Inducer Limit Switch or Condensate Switch
E11
(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
E12
Open fuse
E13
Blower HP/OEM ID
E14
No PM and local copy bad
E15
Both Unit Data File in PM and local Unit
Data File are Corrupt
E17
Blower motor no communication response
E18
Blower communication failure on the control
120v 60 Hz. 1 PH
POWER SUPPLY PER LOCAL CODE
JUNCTION BOX
GND
YL/48
IFC
YL/51
3
LINE-H
2
CIRC-H
YL/51
1
TNS-H
4
TNS-N
3
CIRC-N
1
LINE-N
1
IGN-H
2
IND-HI
3
IND-LO
H
N
4
GND
IND-N
5
IGN-N
X
X
X
12V
1
2
Rx
3
GND
4
Tx
ILI
1
2
TR
3
PS1
4
HLO
5
VENT
MVC
MOTOR
6
(INDUCER)
TH
**
7
PS2
8
IGN
GND
9
MVL
10
MVH
OR ORANGE BR BROWN
11
HLI
PR PURPLE RD RED
BL BLUE
12
FP
BK W2 W1 R
G B/C Y2 Y1 O
THERMOSTAT
FLAME_ROLLOUT2
RAF-2
YL
CONDENSATE
FLAME_ROLLOUT1
D346413P01 REV B
H
N
PANEL LOOP
BK
1
1
2
2
BK
BK
BK
BK
WH
WH
WH
1
BK
BK
2
3
RD
WH
IGN
WH
WH
BK
BL
WH
BK
WH
PR
BL
OR
PR
BL
RD
BR
GR
RD
BR
BR
WH
THERMAL_LIMIT
YL
YL
RAF-1
YL
YL
INDUCER_LIMIT
PR
PR
PR
PS1
YL
OR
YL
A952V
1JPR
2JPR
YL
GND
AC
WH
AC
BK
VENT
MOTOR
(INDUCER)
**
BLOWER
MOTOR
BL
12V
WH
Tx
WH
Rx
BK
GND
TNS
BK
24v
120v
WH
BURNER
BOX GND
1
RD
2
BL
3
BR
PS2
BR
YL
BR
17
Advertisement
Table of Contents
