Airedale SmartCool 11-233kW Manuel d'utilisateur télécharger pdf (Page 193)

Precision Air Conditioning

SmartCool

– D

Precision Air Conditioning

193

Installation, Maintenance and Commissioning Manual :6877419 02/2013

Optional Extras

Energy Saving

Electronically Commutated

(EC) Fan Motor

Shall incorporate external EC rotor motor technology to provide highly accurate

discreet speed control. The fans offer maximum air flow performance while

keeping sound levels to a minimum.

Each fan shall incorporate electronically commutated DC motor control using

semi-conductor modules responding to a signal from the Airedale indoor unit.

EC motors are DC motors with integrated AC to DC conversion; this gives the

flexibility of connecting to AC mains with the efficiency and simple speed control

of a DC motor. The EC fan shall offer significant power reduction in comparison

with equivalent AC fan at both full and modulated fan speeds. The inbuilt EC fan

control module shall allow for fan speed modulation from 0-100%, the

modulating range of a standard AC fan is typically 40-100% of full fan speed.

ptional

Extras

–

General

Short Case Axial Fans

Short case axial fans shall be supplied for indoor installations where discharge air

requires to be ducted to an outdoor location. The fans shall meet duty plus nominal

75Pa of external static pressure.

Head pressure control shall be maintained by a modulating fan speed controller fitted

to the outdoor unit. The controller shall be rated to IP54 for outdoor use and operate

accurately in ambient temperatures down to a minimum of -20°C.

Corrosion R

esistant Coated

Coils

For aggressive atmospheres a corrosion resistant coating shall be applied to the

aluminium fins.

Shut Off Valves

Where unit isolation for easier maintenance is required, shut off valves shall be

supplied loose for on site fitment.

Coil Guards

Protective mesh guards can be fitted to each of the outer coils to protect against

damage.

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Airedale SmartCool 11-233kW Manuel d'utilisateur Page 193

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