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White-Rodgers 21M51U-843 Universal Hot Surface Ignition Control, 25 VAC, 530 mA
Part #175446
MFG #21M51U-843
White-Rodgers 21M51U-843 Universal Hot Surface Ignition Control, 25 VAC, 530 mA
Part #175446
MFG #21M51U-843
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White-Rodgers 21M51U-843 Universal Hot Surface Ignition Control, 25 VAC, 530 mA
Part #175446
MFG #21M51U-843
- Attributes
- Item Features
- Documents
Attributes
Accessory TypeHot Surface Ignition Control
TypeUniversal
Amperage Rating530 mA
Depth1-1/4 in
Gas TypeLiquid Propane/Natural Gas
Height8 in
Lead Length15-1/2 in
Voltage Rating25 VAC
Width5-1/4 in
Probe Length15-1/2 in
Domestic/ImportImport
Electrical Connections1/4 in Spade Terminal and Molex Plug
Igniter Warm-Up Time17 s
Item Features
- 120 VAC 3 speed PSC circulator output, 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).
- -40 to 175 deg F.
- 2-stage gas valve output.
- 3 A fuse protection.
- Pressure switch inputs and monitoring.
- 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.
- 100 M ohm leakage resistance, 3 speed PSC blower motor systems.