Mars mars-10868 Azure Digi-motor 1/3-1/2 Hp 115/230V 1075 Rpm

Product Description

The MARS mars-10868 is a 5.5-inch Azure Digi-Motor designed as a variable speed ECM blower motor replacement for residential and light commercial HVAC air-handling systems. Rated from 1/3 to 1/2 HP at 115/230 volts and 1075 RPM, it features an auto-sizing learn mode that self-programs torque values to each of four speed taps based on measured external static pressure. On startup, the motor runs for approximately 2 minutes, samples system conditions, and assigns appropriate torque output without manual configuration. Class B insulation and thermal overload protection are built in. Licensed HVAC technicians install this motor as a direct variable speed motor replacement.

The mars-10868 is intended for residential and light commercial forced-air systems where an existing variable speed motor requires replacement. It is not a replacement for PSC motors or X-13 motors. The dual-voltage rating of 115/230 volts allows installation in a range of air-handler configurations. Where the four preset speed taps do not deliver optimal airflow, or where duplicate speeds are needed across two or more taps, the optional MARS hand-held programmer (No. 08502) connects directly to the motor. The programmer displays the percentage of torque applied to the active speed tap and allows the technician to increase or decrease motor speed and save the setting permanently, overriding the auto-sizing torque values.

Key Features

• Auto-sizing learn mode measures external static pressure on startup and self-programs torque to each speed tap
• Dual-voltage operation at 115/230 volts for broad air-handler compatibility
• Four speed taps with optional manual override via MARS programmer No. 08502
• Class B insulation rating for reliable operation across a wide temperature range
• Thermal overload protection guards against overheating during operation
• UL Recognized construction

Compatibility

The mars-10868 replaces variable speed motors per the compatibility chart published in MARS product literature. It does not replace PSC or X-13 motors. Consult the MARS replacement chart to confirm fitment before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out power to the air-handling unit before removing the existing motor or making any wiring connections. Confirm supply voltage matches the motor nameplate before energizing. Allow the motor to complete its full 2-minute learn cycle on first startup before evaluating airflow performance.

Technical Specifications

• Horsepower: 1/3 to 1/2 HP
• Voltage: 115/230 volts
• Speed: 1075 RPM
• Frame Diameter: 5.5 inches
• Insulation Class: Class B
• Operating Temperature Range: -4 degrees F to 131 degrees F
• Overload Protection: Thermal overload protected
• Certification: UL Recognized

Standard Information

• Brand: MARS
• Manufacturer Part Number: mars-10868