ECR 85/95 - Two Speed
Product Options
| |
| |
| |
| |
|
Benefits:
- save 72% the energy used by shaded pole motors
- up to 77% efficient
- standard size, mounting and accessories for easy "drop in" replacement of shaded pole and PSC motors, or substitute of other EC motors.
- longer life and low maintenance
2-speed Benefits for more information and drawings see the 2-Speed Datasheet
In most walk-in chillers, the evaporator fans run continuously whether the evaporator is in a cooling cycle or not. Continuous operation is wasteful because:
- When the evaporator is not cooling, no heat is being extracted from the cooler, so no airflow is required. The
power of the motor is therefore being wasted. Additionally, all of this
power is being dissipated as heat inside the cooler, so more power must be
used by the compressor to extract it.
- Un-needed airflow during the non-cooling period increases heat transfer through the cooler walls and air exchange through the doors, resulting in faster warming, shorter compressor-off periods, and wasted power.
- Un-needed airflow during the non-cooling period increases drying out of exposed perishables products.
Applications:
Product Specifications (for more information and drawings see the ECR85 / 95 datasheet):
-
If the motor fails to start, locked rotor/stall detection switches the motor to standby mode, with automatic restart after 60 seconds. This software detection protects the motor with a timed restart algorithm to limit maximum winding temperature.
-
Self-resetting thermal protection stops the motor if over-temperature occurs. The motor restarts when the winding temperature is back within the operating range.
-
Overload detection maintains torque within a preset range. Software adjusts the speed if overload occurs, protecting the motor from overheating.
|
|
|
|