21M51U-843 White Rodgers Universal Two-Stage HSI Control 

Available and ships within Canada AB, BC, SK, MB, QC, ON, NB, NS, PEI, NT, NL

Universal 2-Stage Hot Surface Integrated Furnace Control Kit

KIT CONTAINS:

Ignition Control Module — 50M51-843

HotRod™ Universal Ignitor Kit — 21D64-2

5-1/4 in. Width, 8 in. Height,

AMP: 530mA at 24 VAC,

Depth: 1-1/4 in.,

24 VAC Volts,

60Hz Frequency Rating,

Temperature Range: -40 to 175F,

5 - 93% RH Non-Condensing Humidity Range

• 120 VAC 3-speed PSC (permanent split capacitor) circulator output, 2-speed inducer output, 2-stage gas valve output
• 3A fuse protection, furnace status LED tri-colour (green, red and amber), heat fan off delay (dipswitch selectable)
• Fan on delay for cooling, auto second stage delay (dipswitch selectable mode), historical fault retrieval by pushbutton
• YLO, Y, W1, W2, R, G, C, twin terminals
• Pressure switch inputs and monitoring, flash microprocessor with non-volatile memory
• Flame current measurement points
• 1.5A at 24 VAC 60Hz gas valve relay, 2.2A full load, 3.5A locked rotor at 120 VAC inducer relay, 14.5A full load, 25A locked rotor at 120 VAC circulator relay, 1A maximum at 120 VAC humidifier load and electronic air cleaner load, 4A maximum at 132 VAC 60Hz ignitor relay
• 0.3 µA DC minimum current to insure flame detection, 0.1 µA DC maximum current for non-detection, 100M Ohm maximum allowable leakage resistance
• 2 sec. at 60Hz maximum flame failure response time
• Includes HotRod universal 21D64-2 igniter kit