Universal Hot Surface Ignition Control
SKU21V51U-843
Description
The 50V51-843 is a two stage automatic gas interrupted ignition control employing a microprocessor to continually monitor, analyze, and control the proper operation of the gas burner and inducer. the 50V51-843 provides signals for proper operation of a variable fan speed circulator blower signals interpreted during continual surveillance of the two stage thermostat and flame sensing element initiate automatic ignition of the burner, sensing of the flame, and system shutoff during normal operation. the control incorporates system fault analysis for quick gas flow shutoff coupled with automatic ignition retry upon sensing a fault correction.- 16-pin variable speed circulator output for ECM
- Flash microprocessor with non-volatile memory
- Flame current measurement points
- 1.5 A valve relay
- 2.2 FLA to 3.5 LRA inducer relay
- 14.5 FLA to 25 LRA circulator relay
- 1 a max at 120 VAC humidity
- 1 a max at 120 VAC electronic air cleaning
- 4 a max at 132 VAC ignitor relay
- 0.3 uA DC max current for flame detection
- 0.1 uA DC min current for flame detection
- Dipswitch selectable for OEM applications two-speed inducer output, two stage gas valve output
- 100 M ohm leakage resistance, 3 speed PSC blower motor systems
- Pushbutton fault history retrieval
- Furnace status LED - tri-color (green, red and amber)
- Heat fan off delay (dipswitch selectable), fan on delay for cooling
- -40 to 175 deg F
- 2-stage gas valve output
- 3 A fuse protection
- Pressure switch inputs and monitoring
- Type:Â Hot Surface IgnitionAmperage Rating:Â 530Depth:Â 1-1/4 inDomestic/Import:Â ImportHeight:Â 8 inSeries:Â 843Voltage Rating:Â 25Width:Â 5-1/4 in
- Limited
- CSA Certified
- 21D64-2 Silicon Nitride Igniter Upgrade Kit