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YORK

INTEGRATED HSI MODULE

DIRECT

REPLACEMENT

50A56-956

50A56-956 Replaces:

York

White-Rodgers

265901

S1-03101284000 50A56-242

265902

S1-03101933000 50A56-243

S1-03100662000 S1-03101972000

ICM

S1-03101250000 S1-03101973000 ICM2808

S1-03101266000 S1-03109167000 (PCB Only)

S1-03101267000 S1-33102956000

S1-03101267001 S1-33103010000

CROSS REFERENCE

Model

Number

Pre-Purge

Time

Heat Delay-

To-Fan-On

Heat Delay-

To-Fan-Off

Cool Delay-

To-Fan-On

Cool Delay-

To-Fan-Off

Post

Purge

50A56-956

0 sec

30

60 / 90 / 120 / 180

0

60

15 sec

50A56-956 YORK SINGLE STAGE INTEGRATED

HSI FURNACE CONTROL KIT

Controls Gas Valve, Ignitor, Blower, Inducer, Humidifier (120V),

and Air Cleaner. Replaces OEM York and White-Rodgers Models

FEATURES

• System Diagnostics LED with fault recall.

• Twinning connection.

• Fused to protect low voltage system transformers.

• Selectable continuous fan speed.

• Third fan speed.

• Two-stage cooling Y2 input.

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%.

NOTE

: Can also use Universal Kit 50M56U-843

New

www.white-rodgers.com

55

HEATING