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  7. 50A55-743
50A55-743

White Rodgers 50A55-743 Catalog Page

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  • What is the maximum input current of the device at 30 VAC?
    What is the flame establishing time of the device?
    What is the flame failure response time of the device?
    What are the heat delay on and off times?
    What are the cool delay on and off times?
    What is the post purge time?
    What is the pre-purge time?
    What are the relay load ratings?
GOODMAN
INTEGRATED HSI MODULE
DIRECT
REPLACEMENT
50A55-743
50A55-743 GOODMAN SILICON CARBIDE SINGLE
STAGE INTEGRATED HSI FURNACE CONTROL
ControlsGasValve,Ignitor,Blower,Inducer,Humidier
(Both 120V & 24V Input), and Air Cleaner. Replaces OEM
Goodman and White-Rodgers Models
FEATURES
•Includesashcodediagnostics.
•Twinningconnection.
•Fusedtoprotectlowvoltagesystemtransformer
SPECIFICATIONS
Operating Temperature................... -40 to 176°F
Humidity Range ........................ 5% to 93% RH (non-condensing)
Mounting.............................. Snap in standoffs
Electrical Ratings @ 77°F (25°C)
Input Voltage........................... 25 VAC 50 / 60 Hz
Maximum Input Current @ 30 VAC ......... 0.45 amp
Relay Load Ratings
Valve Relay............................ 1.5 amp @ 25 VAC 50 / 60 Hz 0.6 pf
Ignitor Relay ........................... 6.0 amp @ 120 VAC 50 / 60 Hz
Inducer Relay .......................... 2.2 FLA-3.5 LRA @ 120 VAC
Circulator Relay ........................ 14.5 FLA-25.0 LRA @ 120 VAC
Flame Current Requirements
Minimumcurrenttoinsureamedetection.... 1 uA DC
Maximum current for non-detection ......... 0.10 uA DC
Maximumallowableleakageresistance...... 100 M ohms
Timing Spec (@ 60 Hz) maximum
Flame establishing time .................. 0.8 sec
Flame failure response time ............... 2.0 seconds
NOTE:At50Hz,alltimingspecicationsshouldbeincreasedby20%.
Model
Number
Pre-Purge
Time
Heat
Delay On
Heat Delay
Off Sec.
Cool Delay
On Sec.
Cool Delay
Off Sec.
Post
Purge
50A55-743 15 seconds 30 90 / 120 / 150 /180 5 45 15 sec
50A55-743 Replaces:
0130F00005 PCBBF110
0130F00005S PCBBF110S
50A55-289 PCBBF112
50T55-289 PCBBF112S
B1809926 PCBBF123
B1809926S PCBBF123S
CROSS REFERENCE
NOTE: Can also use Universal Kit 50M56U-843
www.white-rodgers.com
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