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FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
• 50M56D-751 Integrated Furnace Control
• 2 – 1/2" Sheet Metal Screws
50M56D-751 is an aftermarket direct replacement
control kit for Carrier single stage furnace products with
PSC blower motors.
ELECTRICAL RATINGS:
Input Low Voltage: 24 VAC, 60 Hz
Input Line Voltage: 120 VAC, 60 Hz, 1φ
Max Input Current: 0.45 A @ 24 VAC
Relay Contact Ratings:
Gas Valve: 1.5 A, 0.6 PF @ 24 VAC
Ignitor Relay: 1.2 A @ 120 VAC
Inducer Relay: 2.8 A @ 120 VAC
Circulator Relay: 10 FLA, 25 LRA @ 120 VAC
Humidifier Load: 1.0 A @ 24 or 120 VAC
Electronic Air Cleaner: 1.0 A @ 120 VAC
Flame Current Requirements:
Minimum current to ensure flame detection:
0.25 μA DC*
Maximum current for non-detection: 0.1 μA DC
Maximum allowable leakage resistance:
100 M ohms
* Measured with a DC ammeter
Flame Establishing Time: 0.8 seconds maximum
Flame Failure Response Time: 2.0 seconds
maximum
OPERATING TEMPERATURE RANGE:
-40° to 176°F (-40° to 80°C)
HUMIDITY RANGE:
5 to 95% relative humidity (non-condensing)
emerson.com/white-rodgers
50M56D-751
Carrier Integrated Single Stage
120V Hot Surface Ignition Control Kit
INSTALLATION INSTRUCTIONS
• Installation Instructions
TWINNING: 50M56D-751 can be twinned. The other
control must also be a 50M56D-751 to ensure
proper functionality.
SPECIFICATIONS & TIMINGS
AGENCY APPROVALS:
GASES APPROVED:
Natural, Manufactured, Mixed,
Liquid Petroleum, and LP Gas Air Mixtures.
CAUTION
!
Risk of Electric Shock.
Disconnect electric power
to system until installation
is complete. Do not use on
circuit exceeding specified
voltage. Higher voltage will
damage control and could
cause shock or fire hazard.
This
intended
locations where it may
come
water.
May cause flame rollout.
Shut off main gas to
heating
installation is complete.
PARTS INCLUDED
DESCRIPTION
UL USA / Canada
control
is
not
for
use
in
in
contact
with
system
until
PART NO. 37-7757001
2035
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Manuels Connexes pour White-Rodgers 50M56D-751
Sommaire des Matières pour White-Rodgers 50M56D-751
- Page 1 • 2 – 1/2" Sheet Metal Screws DESCRIPTION TWINNING: 50M56D-751 can be twinned. The other 50M56D-751 is an aftermarket direct replacement control must also be a 50M56D-751 to ensure control kit for Carrier single stage furnace products with proper functionality. PSC blower motors.
- Page 2 8. Verify unit operation in heating, cooling, and fan harnesses or blower wheels when drilling or only mode. installing screws. 4. Connect all the wires back onto the 50M56D-751 control board referencing the Wiring Diagram section as needed. MOUNTING Slide tabs into slots in sheet metal mounting bracket.
- Page 3 CONFIGURATION Dipswitch Settings Inducer OFF / Heat ON Constant Fan Speed Heat OFF (Blower) Delay (sec.) (Blower) Delay (sec) SW1-1 SW1-2 SW1- 3 & 4 5 / 45* LO/HEAT* 15 / 66 135* *Default NOTE: SW 1-1 selects both the inducer OFF delay and heat ON delay simultaneously. For example, the default setting (switch ON) sets the inducer OFF delay to 5 seconds and the Heat ON delay for the blower to 45 seconds.
- Page 4 IGNITOR PR-2 COM PSC EAC-2 NEUTRAL NEUTRAL NEUTRAL TWINNING TERMINAL GAS VALVE CONNECT TO ANOTHER FLAME 50M56D-751 SENSOR SEC-2 (TR) SEC-1 (TH) HUMIDIFIER 24VAC FAULT RECALL PUSH BUTTON DIPSWITCHES SW1-1 HEAT ON DELAY SW1-2 FAN SPEED SW1-3&4 HEAT OFF DELAY...
- Page 5 Air Conditioner & Heat Pump • The constant fan speed (G) is determined by the fan • Systems retrofitted with 50M56D-751 can be paired speed tap selected with dipswitch SW1-2 (LO/HEAT directly with either a single stage air conditioner or speed is default).
- Page 6 (1 VDC = 1µA) with the burners on. Reading results: 0.5 – 1.0 = marginal, 1.0 – 5.0 = good. TECHNICAL SUPPORT: 1-888-725-9797 Emerson and White-Rodgers are trademarks of Emerson Electric Co. ©2020 Emerson Electric Co. emerson.com/white-rodgers All rights reserved.
- Page 7 • 2 – Vis à tôle de montage de 1/2 po DESCRIPTION JUMELAGE : La commande 50M56D-751 peut être La commande 50M56D-751 est une trousse de commande jumelée. L’autre commande doit également être une de rechange universelle du marché des pièces de rechange 50M56D-751 pour assurer le fonctionnement approprié.
- Page 8 Vérifiez le fonctionnement de l’appareil dans les modes Branchez tous les fils sur le panneau de commande chauffage, climatisation et ventilateur seulement. 50M56D-751 en vous reportant à la section Schéma de câblage au besoin. MONTAGE Glissez les languettes dans les fentes des ferrures de montages en tôle.
- Page 9 CONFIGURATION Réglages des commutateurs DIP ARRÊT de l’inducteur / DÉMARRAGE du chauffage Vitesse continue du ventilateur Délai d’ARRÊT du chauffage (souffleur) (s) Délai (souffleur) (s) SW1-1 SW1-2 SW1-3 ET 4 5 / 45* BASSE/ CHAUF* ÉTEINT MARCHE ÉTEINT MARCHE ÉTEINT MARCHE ÉTEINT MARCHE...
- Page 10 BLEU BRUN BORNE BLANC JUMELANTE, ROBINET DE GAZ ROUGE RACCORDER NOIR JAUNE À UN AUTRE CAPTEUR 50M56D-751 DE FLAMME SEC-2 (TR) SEC-1 (TH) GRIS HUMIDIFICATEUR 24 V C.A. BOUTON-POUSSOIR DE RAPPEL D’ANOMALIE COMMUTATEURS DIP SW1-1 DÉLAI MARCHE CHAUF SW1-2 VITESSE DU VENTILATEUR (SI UTILISÉ)
- Page 11 • Les systèmes mis à niveau avec la commande la prise de vitesse du ventilateur avec le commutateur 50M56D-751 peuvent être jumelés avec un climatiseur DIP SW1-2 (la vitesse basse de chauffage est la vitesse ou une thermopompe mono-étage. par défaut).
- Page 12 Résultats de la lecture : 0,5 – 1,0 = marginale, 1,0 – 5,0 = bonne. SOUTIEN TECHNIQUE : 1-888-725-9797 Emerson et White-Rodgers sont des marques de commerce d’Emerson Electric Co. © 2020 Emerson Electric Co. emerson.com/white-rodgers Tous droits réservés.