White Rodgers 50A55-843 Specification
White-Rodgers
50A55-843
Universal Replacement Integrated
Module for Silicon Carbide Ignition
• Replaces Most White-Rodgers and OEM Integrated Ignition Modules for Silicon Carbide Applications
• Extensive Model Cross-Reference Provided
• Diagnostic LED
• Additional Jumpers to Extend the Length of the Connections
50A55-843
Universal Integrated Module
for Silicon Carbide Ignition
Replaces over 100 OEM and
Aftermarket Models
Universal
Simplify Your Inventory.
Go with the Leader and Stock One Model That Replaces Them All.
The 50A55-843 Universal Silicon Carbide Integrated Ignition
module employs a microprocessor which continually monitors,
analyzes and controls the proper operation of the gas burner,
inducer and fan. This one module will replace most of the
50A5X-XXX integrated ignition carbide modules that have been
manufactured by White-Rodgers for most OEM applications.
The Universal Module includes an extensive cross-reference,
additional jumper wires, additional wiring harness and a
jumper for Trane applications. The module also has terminals
for powering a humidifier and electronic air cleaner.
Reduces
Inventory
White-Rodgers
Universal Replacement Integrated
50A55-843
Universal Integrated Module
for Silicon Carbide Ignition
Replaces over 100 OEM
and Aftermarket Models
50A55-843
Module for Silicon Carbide Ignition
• Replaces Most White-Rodgers and OEM Integrated Ignition Modules for Silicon Carbide Applications
• Extensive Model Cross-Reference Provided • Diagnostic LED • Additional Jumpers to Extend the Length of the Connections
Application
Gas-Fired Forced-Air Furnaces with Integrated
Furnace Control Module with a Silicon
Carbide Ignitor
Specifications
Electrical Rating at 77°F (25°C):
Input Voltage 25 VAC, 50/60 Hz
Max. Input Current (@ 25 VAC) 0.45 amp
Relay Load Ratings:
Operating Temperature:
-40° to 175°F (-40° to 80°C)
Humidity Range:
5% to 93%
Valve Relay 1.5 A @ 25 VAC, 50/60 Hz, 0.6f
Ignitor Relay 6.0 A @ 120 VAC,
50/60 Hz (resistive)
Inducer Relay 2.2 FLA-3.5 FLA @ 120 VAC
Circulator Relay 14.5 FLA-25.0 FLA @ 120 VAC
Model
Number
50A55-843
Cool
Delay to
Fan On
5 45, 90 2 Times YesYes 17Yes
Pre-
Purge
Cool
Delay to
Fan Off
Trial for
Ignition
Air
Cleaner
Tap
Ignition
Activation
Period
Humidifier
Tap
Valve
Sequence
1230 4 1 60 15 300
Initial
Warm-up
InterPurge
Retries
Post-
Purge
Twin
Lockout
Heat
Delay to
Fan On
30, 45
See our other Universal Replacement
Ignition Modules:
Non-Integrated Module
for Silicon Carbide Ignitor
50E47-843
Heat
Delay to
Fan Off
60, 90,
120, 180
Integrated Module
for Nitride Ignitor
50A65-843
Model Cross-Reference
50A55-843 Replaces These Integrated Silicon Carbide Ignition Modules
031-00662-000
031-00662-700
031-01250-000
031-01250-700
031-01266-000
031-01266-700
031-01284-000
084141
1010806
102077-02
102077-03
10207704
102077-04
10207706
102077-09
10207710
10207714
12L4201
1380686
1380698
1380699
14028
14029
14030
14031
117284
194300330001
30757
350486
50A50-110
50A50-111
50A50-112
50A50-113
50A50-130
50A50-131
50A50-142
50A50-143
50A50-205
50A50-206
50A50-207
50A50-208
50A50-209
50A50-210
50A50-215
50A50-216
50A50-229
50A50-230
50A50-240
50A50-241
50A50-245
50A50-285
50A50-286
50A50-288
50A50-295
50A50-296
50A50-298
50A50-405
50A50-406
50A50-408
50A50-438
50A50-471
50A50-472
50A50-473
50A50-474
50A50-475
50A50-571
50A55143
50A55-143
50A55-241
50A55-245
50A55-250
50A55-285
50A55-286
50A55-288
50A55-438
50A55-474
50A55-571
50A55-843
52537074000
52537077000
56L8501
75671
75672
78712
8068142
8068561
8068563
83388
99958174
99958175
D330927P01
D330930P01
D330934P01
D340035P01
D340774P01
D341122P01
D341235P02
D341235P03
PCBBF117
X13120666010
X13130436-01
X13130436-02
X13130436-04
X13130436010
X13130436040
X13640678040
X13650597010
X445901
Direct Spark Ignition Module
50D50-842
Universal Single Stage HSI
Integrated Furnace Control Kit
50M56U-843
Universal Two-Stage HSI Integrated Variable
Speed (ECM) Circulator Furnace Control Kit
21V51U-843
Intermittent Spark Pilot Module
50D50-843
Universal Two-Stage HSI Integrated
3-Speed (PSC) Circulator
Furnace Control Kit
21M51U-843
Saint Louis, Missouri
314-553-3600
www.white-rodgers.com
www.emersonclimate.com
Markham, Ontario
905-948-3411
The Emerson logo is a trademark and
a service mark of Emerson Electric Co.
WR-0541-1
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