Nordyne 661021R Orifice 322838-752 and vibration isolators required for

and vibration isolators required for a complete securement of the blower motor to the housing

offering identical performance and physical dimensions for direct field replacement

Connecting it to a lower voltage will result in insufficient torque and potential electrical damage to the unit

This heater is strictly for 480V high-voltage systems and will not function correctly on 208/230V or 575V equipment

Using it with other brands may lead to pin-out mismatches and technical failure

Nordyne 661021R Orifice 322838-752 and vibration isolators required forThe Nordyne 661021R Orifice is a precision engineered Natural Gas Main Burner Orifice designed to maintain exact fuel to air ratios in residential heating systems. Featuring a #21 drill size (nominal . 021 diameter), this OEM component is a direct replacement for the Nortek 661021, ensuring calibrated gas flow for the MG1E 077 gas furnace and compatible mobile home heating units. For a technician in the field, using a correctly sized burner orifice is