Introduction
The MARS Azure Digi-Motor is a high-efficiency variable speed direct drive blower motor designed for various HVAC applications. It serves as a replacement for both standard PSC and Genteq X-13 motors. This motor is capable of covering ratings from 1/5 HP to 1 HP and operates on either 115V or 230V, supporting both CW and CCW rotations.
Key features of the Azure Digi-Motor include:
- Outboard replaceable surge protector (MARS No. 08593)
- 625 RPM constant fan mode
- Reversible rotation capability
- High efficiency (85%)
- Belly band mount design
Setup and Installation
Installation of the MARS Azure Digi-Motor should be performed by a qualified HVAC professional. Ensure the power supply is disconnected before beginning any installation procedures.
- Power Requirements: This motor operates on 115 Volts. Verify your system's voltage compatibility before installation.
- Mounting: The motor utilizes a belly band mount. Securely fasten the motor in the designated position within the HVAC unit.
- Wiring: Connect the motor wiring according to the HVAC system's electrical diagram and local codes. The Azure Digi-Motor includes an outboard surge protector within its wire harness.
- Initial Power-Up (Auto Sizing Learn Mode): Upon initial power-up, the Azure motor enters a start-up learn mode. During this approximately 2-minute period, the motor measures the external static pressure of the system application. It then automatically assigns torque values to each of its speed taps, self-programming to the correct horsepower for the application.
Operating Instructions
The Azure Digi-Motor is designed for automated operation after its initial auto-sizing process. It will adjust its performance based on system demands.
- Automatic Operation: After the initial learn mode, the motor operates by energizing its speed taps, delivering the appropriate airflow based on the self-programmed torque values.
- Constant Fan Mode: The motor supports a 625 RPM constant fan mode for continuous air circulation.
- Optional Hand-Held Programmer (MARS No. 08502): If specific airflow adjustments are required beyond the auto-sizing, or if duplicate speeds are desired on multiple taps, an optional hand-held programmer (MARS No. 08502) can be used. This programmer connects to the Azure motor and displays the percentage of torque applied to the energized speed tap. The motor speed can then be increased or decreased and permanently set, overriding the auto-sizing mode.
- Reversible Rotation: The motor is designed with reversible rotation capability, adapting to various blower configurations.
Maintenance
Regular maintenance of your HVAC system is recommended to ensure optimal performance and longevity of the MARS Azure Digi-Motor.
- Surge Protector: The Azure Digi-Motor includes an outboard surge protector (MARS No. 08593) within its wire harness. This is a replaceable device. Periodically inspect the surge protector for any signs of damage or wear. If replacement is necessary, use only the specified MARS part.
- General Cleaning: Ensure the motor and surrounding areas are kept free from dust and debris to prevent overheating and maintain efficiency.
- Professional Inspection: It is advisable to have your HVAC system, including the blower motor, inspected annually by a qualified technician.
Troubleshooting
This section provides guidance for common issues. For complex problems, consult a qualified HVAC technician.
- Motor Not Operating:
- Check power supply to the HVAC unit.
- Inspect the outboard surge protector (MARS No. 08593) for failure. A damaged surge protector may prevent motor operation.
- Verify all wiring connections are secure and correct.
- Incorrect Airflow/Speed:
- Ensure the auto-sizing learn mode completed successfully during initial setup.
- If specific airflow adjustments are needed, use the optional hand-held programmer (MARS No. 08502) to fine-tune speed tap settings.
- Check for obstructions in the ductwork or dirty filters that could restrict airflow.
- Unusual Noises:
- Turn off the unit and inspect the blower wheel for debris or damage.
- Ensure the motor is securely mounted and not vibrating against other components.
Specifications
| Brand | MARS |
| Model Number | 10861 |
| Voltage | 115 Volts |
| Horsepower Range | 1/2 - 1 HP |
| Speed | 625 RPM (Constant Fan Mode), up to 1050 RPM (with optional controller) |
| Efficiency | 85% |
| Item Weight | 16.65 pounds |
| Product Dimensions | 5.5 x 5.5 x 6.66 inches |
| Certification | UL Listed |
| Special Features | Outboard replaceable surge protector, Reversible rotation, Auto-sizing learn mode |
Warranty Information
Specific warranty details for the MARS 10861 Azure Digi-Motor are not provided in this manual. For information regarding warranty coverage, terms, and conditions, please refer to the documentation included with your purchase or contact the manufacturer directly. Keep your proof of purchase for warranty claims.
Support
For technical assistance, service, or inquiries regarding the MARS 10861 Azure Digi-Motor, please contact MARS customer support or your authorized dealer. It is recommended to have your model number and purchase date available when seeking support.
Manufacturer: Standard Plumbing Supply
