Standard Range Catalogue - HELIOS VENTILATEURS

Catalogue Standard Range Catalogue

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Helios

general product information


	If the fan is to besp	eed cont rol-
	led by a frequency	nverter this
	must be stated whs	i oroerr.y.
	The use of other br	nri oo.ilrd-
	lers might result to
		C;:nl-i.-j\|l!!-;;
	not offered or recommended by
	1 in ICS invalidate t
	guarantee.

nance adjust ment by

■ Speed controllable fans

■ Conditions of sale, guarantee

All sales are only made upon HELIOS's Conditions of Sale, a copy oi which is available on request.

The guarantee on HELIOS products within the UK is 17 month from deliver; nil': s only applicable if:

- the units are used for (heir inks-dud purpose,

all instructions g yen bv HELIOS were followed.

- the unit has not been modified or repaired,

The warranty Is limited to the material and workmanship of the product Asa part of continuous product development HELIOS reserve the right to alter the specification without prior notice.

speed control

The re

:e of a fan system is based on various factors.

- To increase the comfort.

- To adapt the system to the changing requirements within building (number of people, air quality temperature etc.).

- To ensure an economical operation.

Speed controlling fans is the best way of adapting the performance with regards to energy consumption and noise. The required shaft power is reduced by the cubic of the speeds change, li the speed is halved the shaft power drops to one ciglhs of the (..'I speed hgj-o

used at full speed.

13 rJeolrcnic speed c( working on the principle of voltage reduction by cutting (he-phase may create electromagnetic (humming], noise in the motor at low speed which :;ou d be disturbing. For noise sn'tisal isBiisitive ) instalations