EMERSON 50M56X-843 Universal Integrated Furnace Controls Instructions
- June 4, 2024
- Emerson
Table of Contents
EMERSON 50M56X-843 Universal Integrated Furnace Controls Instructions
FEATURES
- Reduces inventory by providing maximum control replacement coverage
- Select models include a universal 120V nitride ignitor to allow replacement of 80V and 120V controls
- Diagnostic LED indicators streamline installation and system troubleshooting
- 120V air cleaner output and 120V humidifier output up to 1 Amp max
- Factory standard safety timings and adjustable fan delay options
- Replaceable automotive style fuse
SPECIFICATIONS
- Low Voltage Circuit: 24 VAC, 50/60 Hz
- Line Voltage Circuit: 120 VAC, 50/60 Hz
- Circulator Relay: 14.5 FLA – 25.0 LRA @ 120 VAC
- Circulator Relay: PSC: 14.5 FLA – 25.0 LRA @ 120 VAC
- Circulator Relay: ECMx: 12.0 mA @ 30 VAC
- Operating Temperature Range: -40° to 175°F (-40° to 79°C)
- Humidity Range: 5% to 93% relative humidity (non-condensing)
UNIVERSAL INTEGRATED FURNACE CONTROLS
FAMILY BRANDS OF EQUIPMENT| STAGES| IGNITION TYPE| IGNITOR
VOLTAGE| INDUCER MOTOR / BLOWER MOTOR| BLOWER MOTOR SPEED
TAPS| THERMOSTAT INPUTS| INCLUDES IGNITOR OR ELECTRODE|
TWINNING| INCLUDES WIRING ACCESSORIES| COMM SYSTEM|
CONTROL MOUNTING| MODEL NUMBER| ITEM NUMBER
---|---|---|---|---|---|---|---|---|---|---|---|---|---
Carrier, Goodman, Lennox, Nordyne, Rheem, Trane, York| Single Stage| HSI| 120
Vac| PSC / PSC, ECMx| PSC – 2 or 3 speeds
ECMx: 2, 3, 4, 5, & 9 speeds| R, C, W, G, Y1, Y/Y2, DHUM| √| √| —| —| Flush
Mount| 50M56X-843 1| 50M56X-843
Carrier, Goodman, Lennox, Trane, York| Single Stage| HSI| 120 VAC| PSC / PSC|
Heat, Cool| R, C, W, Y G| —| √| √| —| Flush Mount| 50A55-843|
50A55-843S1
Goodman, Lennox, Trane| Single Stage| HSI| 80 VAC only| PSC / PSC| Heat, Cool|
R, C, W, Y G| —| —| —| —| Flush Mount| 50A65-843| 50A65-843S1
Goodman, Lennox, Trane, York| Two-Stage| HSI| 120 VAC| PSC / PSC| Lo Heat, Hi
Heat, Cool| R, C, W1, W2, YLo, Y, G| √| √| —| —| Standoff| 21M51U-843|
21M51U-843
Goodman, Lennox, Trane, York| Two-Stage| HSI| 120 VAC*| PSC / Var. Speed|
16-pin Interface| R, B/C, W1, W2, YLo, Y, G, O, DHUM| √| —| √| —| Standoff|
21V51U-843| 21V51U-843
- On 80 VAC applications use supplied 21D64-2 Universal Ignitor.
- On 80 VAC applications purchase 21D64-2 Universal Ignitor.
- NOTE: Coming Fall 2022, replaces 50M56U-843 & 50X57-843, uses White-Rodgers Connect app for quick configuration and diagnostics.
Replaces over 700 OEM, White-Rodgers and competitive model numbers.
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