Product Description
White Rodgers 50M56U-751 NEW-Direct Replacement Integrated Furnace Control For Carrier Single Stage HSI Controls with 120V Ignitors. Replaces Carrier 325878-751, HK42FZ004, HK42FZ007, HK42FZ008, HK42FZ009, HK42FZ011, HK42FZ013, HK42FZ016, HK42FZ034
- System Diagnostic LED With Fault Recall
- Low-Speed Continuous Fan Option
- 120 VAC Ignitor Output
- 120 or 24 VAC Humidifier output
- 120 VAC Electronic Air Cleaner Output
- Self Test Installation Routine
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)
Mounting
Surface mount multipoise
Timing Specifications (@ 60 Hz)
Maximum
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.
Dimensions
5.25"" W x 7"" H x 1.25"" D
| Pre-Purge | 30 |
| Ignitor Warm-Up (1st 64 attempts) | 17 |
| Maximum Ignitor Warm-Up | 19 |
| Ignition Activation Period | 2 |
| Trial For Ignition Period | 4 |
| Recycles | 3 |
| Retries | 2 Times |
| Valve Sequence Period | 12 |
| Interpurge | 60 |
| Post-Purge | 25 |
| Lockout Time | 275 |
| Heat Delay To Fan On* | 25/60 |
| Heat Delay To Fan Off* | 90/120 |
| Cool Delay To Fan On | 2 |
| Cool Delay To Fan Off* | 5/90 |
| Auto Reset | 60 Minutes |
*These times will vary depending on option switch position.
See OPERATION section for further information.
Replaces
- Carrier
- 325878-751
- HK42FZ004
- HK42FZ007
- HK24FZ008
- HK42FZ009
- HK42FZ011
- HK42FZ013
- HK42FZ016
- HK42FZ034
- White Rodgers
- 50M56-751
- ICM
- ICM282A
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Product Videos
Custom Field
MPN 50M56u-751
