Siemens
Replacing older motors in air handlers, pumps, and similar applications with highly efficient motors can save energy costs and improve equipment reliability.
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Siemens
High efficiency induction motor.
Hub Highlights:
- High efficiency at full speed
- Compatible with more types of VFDs
- Built for heavy duty applications
Last Edited on: March 31, 2023
| Drive Manufacturer | Schneider |
| Drive Model Number | ATV930 D11M3 |
| Date of Test | Jul-22 |
| Testing Results: | "System" includes the motor drive and motor itself. Airflow test points were chosen to assist users estimate fan energy savings in HVAC equipment. See picture for full results. Tests accurate within ±0.2% |
| System Efficiency at 100% Airflow | 86.2% |
| System Efficiency at 90% Airflow | 86.3% |
| System Efficiency at 80% Airflow | 84.7% |
| System Efficiency at 65% Airflow | 80.0% |
| System Efficiency at 50% Airflow | 71.0% |
| System Efficiency at 30% Airflow | 43.0% |
| Motor Efficiency at 100% Airflow | 89.8% |
| Motor Efficiency at 90% Airflow | 90.1% |
| Motor Efficiency at 80% Airflow | 89.3% |
| Motor Efficiency at 65% Airflow | 87.0% |
| Motor Efficiency at 50% Airflow | 82.5% |
| Motor Efficiency at 30% Airflow | 62.8% |
Last Edited on: 04/2024
Data Collection
The evaluation team surveyed individuals with experience in installation, operation, and/or maintenance of advanced variable speed motor and drives.
Sample Size
11
Scoring
These scores describe user experience with high efficiency motors in general, not differentiating among specific products. A 5-point rating (1-5) for each subscale was calculated as the mean of responses to all questions in the subscale--all asked with a 5-point response scale [Strongly disagree (1) to Strongly agree (5)]. Negatively framed questions were reverse-scored. Higher scores mean better user experience.
Installation
Finding a qualified installer was easy. I was satisfied with the installer's scheduling of the initial work. Installation was a similar degree of difficulty as typical variable speed [motors/drives]. The instructions for installing were clear and easy to follow. I needed technical support for setup. The instructions for installing and setting up the [motor/drive] were clear and easy to follow.
Performance
The motor operates well; The motor has had performance issues; Occupants/users have made complains about the motor; The motor makes a lot of noise; The motor overheats frequently; The motor does not vibrate a lot.
Maintenance
It is difficult to find a service provider that performs maintenance on the motor; The motor is easy to maintain; Maintenance requires special tools; Maintenance requires special training.
Usability
System Usability Scale (SUS): I found the system unnecessarily complex; I thought the system and service was easy to use; I think that I would need more technical support to be able to use the system and service; I found the various functions in this system and service were wll integrated; I though there was too much inconsistency in the system and service; I would imagine that most people in my role would learn to use this system and service very quickly; I found the system and service very cumbersome or awkward to use; I felt very confident using the system and service.
General Satisfaction
Overall, I am satisfied with the [motor/drive]; If my organization needed another energy storage system, I would select this [motor/drive] again; I would recommend the [motor/drive] to others.