White Rodgers 21V51U 843 Universal Two Stage Hsi Integrated Furnace Control Kit Catalog Page 46 Of Rodgers_catalog_R 4425_
2015-03-28
: White-Rodgers White-Rodgers-21V51U-843-Universal-Two-Stage-Hsi-Integrated-Furnace-Control-Kit-Catalog-Page-676496 white-rodgers-21v51u-843-universal-two-stage-hsi-integrated-furnace-control-kit-catalog-page-676496 white-rodgers pdf
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TWO-STAGE INTEGRATED VARIABLE SPEED (ECM) HSI FURNACE CONTROL UNIVERSAL REPLACEMENT 21V51U-843 UNIVERSAL INTEGRATED HSI FURNACE CONTROL KIT Replaces White-Rodgers 50V51-XXX's and 50V61-XXX's Two-Stage HSI Systems with 80V or 120V Ignitors HEATING FEATURES • 16-pin variable speed circulator output for ECM (Electronically Commutated Motor), dipswitch selectable for OEM applications two-speed inducer output, two-stage gas valve output. • Pushbutton fault history retrieval. • Furnace status LED – tri-color (green, red and amber). • Heat fan off delay (dipswitch selectable), fan on delay for cooling. • Auto second stage delay (dipswitch selectable). • 120 VAC humidifier output/120 VAC electronic air cleaner output. SPECIFICATIONS Electrical Rating: Input Voltage . . . . . . . . . . . . . . . . . . . . Nom. Input Current @ 24 VAC . . . . . . Relay Load Ratings: Gas Valve Relays . . . . . . . . . . . . . . . . Inducer Relays . . . . . . . . . . . . . . . . . . Humidifier Load . . . . . . . . . . . . . . . . . . Electronic Air Cleaner Load . . . . . . . . . Ignitor Relay . . . . . . . . . . . . . . . . . . . . Flame Current Requirements: 24 VAC, 60 Hz (Class II transformer required) 595 mA + MV 1.5 amps @ 24 VAC, 60 Hz 2.2 FLA – 3.5 LRA @ 120 VAC 1.0 amp max. @ 120 VAC 1.0 amp max. @ 120 VAC 4.0 amps max. @ 132 VAC, 60 Hz Minimum current to insure flame detection 0.3 µa DC* Maximum current for non-detection . . . 0.1 µa DC* Maximum allowable leakage resistance 100 M ohms *Measured with a DC microameter in the flame probe lead Operating Temperature Range . . . . . . -40o to 175oF (-40 to 80oC) Humidity Range . . . . . . . . . . . . . . . . . . 5% to 93% relative humidity (non-condensing) Flame Failure Response Time . . . . . . 2.0 sec. max. @ 60Hz 21V51U-843 Includes: • Module • HotRod Ignitor Kit • Wiring Harness ? PAGES 181–182 TECHNICAL HELP Wiring Diagram/Operation . . . . . . . . . . . . . . See pages 181–182 Heat Cool Cool Automatic Model Ignitor Delay to Heat Delay Delay to Delay to Reset Number Pre-Purge Warm-Up Retries Fan ON to Fan OFF Fan ON Fan OFF Time 21V51U-843 15 17 2 45 90/120/150/180 5 60 60 minutes CROSS REFERENCE 21V51U-843 Replaces: 46 18M9901 21V51U-843 50V51-507 21V51U-843 CNT 04018 21V51U-843 20300002 21V51U-843 50V61-120 21V51U-843 CNT 04352 21V51U-843 20300004 21V51U-843 50V61-143 21V51U-843 CNT03078 21V51U-843 20300006 21V51U-843 50V61-288 21V51U-843 D156245P01 21V51U-843 20300006S 21V51U-843 50V61-289 21V51U-843 D34142P01 21V51U-843 21V51U-843 21V51U-843 50V61-480 21V51U-843 PCB00106 21V51U-843 49M5901 21V51U-843 50V61-486 21V51U-843 PCB00106S 21V51U-843 50V51-243 21V51U-843 50V61-507 21V51U-843 PCBBF106 21V51U-843 50V51-288 21V51U-843 B1809925 21V51U-843 PCBBF106S 21V51U-843 50V51-289 21V51U-843 B1809927 21V51U-843 PCBBF107S 21V51U-843 50V51-290 21V51U-843 B1809927S 21V51U-843 X13650840010 21V51U-843 www.white-rodgers.com
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