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50M56U-843 UNIVERSAL INTEGRATED

HSI FURNACE CONTROL KIT

Replaces Virtually All White-Rodgers and Competitive Single Stage

Carbide and Nitride HSI Systems with 80V or 120V Ignitors.

Replaces More Models than Honeywell S9200U1000

FEATURES

• 3 Fan Speeds – cool, low heat & high heat speeds.

• Universal HotRod nitride ignitor kit – 21D64-2.

• 9 quick-select/quick-connect wiring harnesses.

• Red LED diagnostic flash codes with stored fault recall.

• Low voltage fuse protection, 3A replaceable automotive type.

• Humidifier & Electronic Air Cleaner connections (optional).

SPECIFICATIONS

Electrical Rating:

Input Voltage . . . . . . . . . . 25 VAC 50/60 Hz

Max. Input Current . . . . . . . . 25 VAC: 0.45 amp

Gas Valve Relays . . . . . . . . 1.5 amp @ 25 VAC 50/60 Hz

Inducer Relay . . . . . . . . . 2.2 FLA–3.5 LRA @ 120 VAC

Circulator Relay . . . . . . . . . 14.5 FLA–25.0 LRA @ 120 VAC

Ignitor Relay . . . . . . . . . . 6.0 amp @ 120 VAC 50/60 Hz (resistive)

Flame Current Requirements:

Minimum current to insure flame detection 1 μa DC*

Maximum current for non-detection . 0.1 μa DC*

Maximum allowable leakage resistance 100 M ohms

*Measured with a DC microameter in the flame probe lead

Operating Temperature Range . . . -40° to 176°F (-40° to 80°C)

Flame Failure Response Time . . . . . . 2.0 sec

PARTS AND ACCESSORIES

See end of this section for parts and accessories

TECHNICAL HELP

Wiring Diagram . . . . . . . . . . . See pages 190–192

UNIVERSAL

REPLACEMENT

INTEGRATED

HSI FURNACE CONTROL

Model

Number

Pre-Purge

Ignitor

Warm-Up Retries

Heat

Delay to

Fan ON

Heat Delay

to Fan OFF

Cool

Delay to

Fan ON

Cool

Delay to

Fan OFF

Automatic

Reset

Time

50M56U-843

30

17

2

30

100/150

6

45 60 minutes

?

PAGES

190–192

50M56U-843

Includes:

• Module

• Wiring Harness

• HotRod

Ignitor Kit

Consult online Cross Reference for other suggested replacements for this item.

CROSS REFERENCE

www.white-rodgers.com

43

HEATING