Airedale SmartCool 11-233kW - Manual (Page 19)

Electronically Commutated (EC) Fan Motor
EC motors incorporate integrated electronics to convert AC power to
DC for efficient and accurate speed control and are adjustable via the
microprocessor display keypad.
The fans offer maximum air flow performance while keeping sound
levels to a minimum.
It gives the flexibility of connecting to AC mains with the efficiency
and simple speed control of a DC motor. The EC fan offers significant
power reduction in comparison with an equivalent AC fan at modulated
fan speeds. The inbuilt EC fan control module allows for fan speed
modulation from 15-100%.
A standard AC fans modulating range is typically 40 -100% of full fan
speed.
Standard voltage regulated (VR) fan speed controllers offer a linear
response. The illustration on the right shows a comparison of the typical
power input required by each method.
G4 Filtration
Pleated disposable panel filters in a rigid frame. Conform to BS EN 779-G4.
Access and removal from unit front.
As standard the microprocessor provides an alarm following a pre set run time limit being exceeded.
High Grade F7 Filtration
Pleated disposable panel filters conforming to BS EN 779-F7 shall be provided.
Input Power
Airflow
EC (Electronically Commutated) Fan Speed Control
Regulated (VR) Fan Speed Control
Key
Air Flow Switch
An adjustable differential pressure switch shall activate a visual alarm at the status panel and break the power supply in
the event of a fan or motor failure.
Precision Air Conditioning SmartCool™ 6 - 200kW
19 SmartCool 6 - 200kW Chilled Water Technical Manual 7674716 V1.1.0_04_2014
Introduction