Carrier Single Stage HSI Integrated Furnace Control Kit

Direct Replacement Is Fast and Easy!

Carrier Single Stage HSI Integrated Furnace Control Kit

Main features

Electrical Ratings [@ 77°F (25°C)]
Input Voltage: 25 VAC 50/60 Hz
Max. Input Current @ 25 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 (resistive)
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 μa DC*
Maximum current for non-detection: 0.1 μa DC*
Maximum allowable leakage resistance: 100 M ohms
*Measured with a DC microammeter in the flame probe lead

Operating Temperature Range
-40° to 175°F (-40° to 80°C)

Humidity Range
5% to 93% relative humidity (non-condensing)

Surface mount multipurpose
Timing Specifications (@ 60 Hz**)
Flame Establishing Time: 0.8 sec
Flame Failure Response Time: 2.0 sec
**At 50 Hz, all timing specifications should be increased by 20%
Gases Approved: Natural, Manufactured, Mixed,
Liquified Petroleum and LP Gas/Air Mixtures are
all approved for use.

5.25” W x 7” H x 1.25” D

Specs & Details

The Carrier Single Stage HSI Integrated Furnace Control Kit is a high quality replacement for White-Rodgers 50M56-751 and Virtually All Carrier Single Stage HSI Controls with 120V Ignitors.


  • Replaces more controls than any other kit
  • Complete upgrade with new ignitor included
  • Covered control with fault and service information on the label
  • Adds push button fault recall and dedicated FAN only speed to many units





PDFClick here for full specifications.

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