RefCoSupply Inc.
EMERSON-21B51U-843-CONTROL BOARD
$184.00
$184.00
- 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
- Heat fan off delay (dipswitch selectable), fan on delay for cooling, and auto second-stage delay
- Includes 21D64-2 Silicon Nitride ignitor kit, module and wiring harness