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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, Humidifier

(Both 120V & 24V Input), and Air Cleaner. Replaces OEM

Goodman and White-Rodgers Models

FEATURES

• Includes flash 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 flame 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 specifications 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

48

HEATING