660916R Nordyne M1 Gun Drawer Assembly Let’s explore the instructions for the Nordyne 660916R Gun Drawer Assembly. This component is essential for your furnace. Here are the steps to guide you: Safety First: Disconnect the power to your furnace before starting any work. Ground yourself to discharge any electrostatic charge by touching a clean, metal (unpainted) surface near the control board. Service the furnace only after grounding yourself. Store used and new controls separately to prevent electrostatic damage. Consider using an ESD service kit to prevent ESD damage. Electrical Ratings: Voltage Range: Line (98 to 132 VAC) @ 60Hz Key Ratings: Ignitor: 5A, 120 VAC Fan Blower: 10A, 2 HP, 240 VAC Heat Blower: 5A, ½ HP, 250 VAC Inducer Blower: 4A, 120 VAC Gas Valve: 1A, 24 VAC Humidifier Motor: 10A, 120 VAC Timing Parameters: Prepurge Heat: 60 seconds Prepurge Cool: 1 second Postpurge Heat: 90-180 seconds Postpurge Cool: 40 seconds Trial for Ignition: 10 seconds DIP Switch Settings: Configure the HEAT speed air blower off time delay (90, 120, 160, or 180 seconds) using SW1 Switches 1 & 2. For single or TWIN systems, select 1st or 2nd stage using SW1 Switches 3 & 4. Fan Pin Connections (P1 and P2): P1: 1: N/C 2: 24 VAC Common 3: Limit switch 4: Gas valve 5: Pressure switch OUT FAN 6: Pressure switch IN 7: Flame sensor 8: Limit switch IN 9: 24 VAC Common P2: 1: HSI 2: N/C 3: 120 VAC Neutral 4: Inducer 5: N/C 6: 120 VAC Neutral Installation: Carefully remove all wiring from the OEM board and uninstall the old board. Install the Nordyne 660916R Gun Drawer Assembly in place of the old board. Reconnect wires according to the original installation. Note: Some furnace models may require a separate flame sensor wired to pin 7 of the 9-pin harness if they lack a separate flame sensor. Remember to follow safety guidelines and consult the Nordyne M1M Series manuals for specific details related to your installation. If you have any doubts, consider seeking professional assistance. Keep your furnace running smoothly!
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