SystemAir VEF 1, Installation And Service

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6 | Warnings GB
2 Warnings
The following admonitions will be presented in the different sections of the document:
Danger
Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or
serious injury.
Warning
Indicates a potentially hazardous situation that may result in minor or moderate injuries.
Caution
Indicates a risk of damaging the product or prevent optimal operation.
3 Product information
Caution
• Take precautions to prevent the back flow of exhaust gases from flues from other appliances installed in
the same room, which are fired by gas or other fuels.
• This appliance can be used by children aged from 8 years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience and knowledge if they have been given supervision
or instruction concerning use of the appliance in a safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children
without supervision.
3.1 General
This installation manual concerns VEF 1, VEF 2, VEF 4 manufactured by Systemair UAB.
The cupboard fans are delivered with potentiometer, 0-10 V. The integrated potentiometer is factory preset to 10 V.
This value can be changed manually to obtain a different motor rpm/fan performance. An external potentiometer can
be connected if necessary. If so the internal potentiometer needs to be disconnected from the connection terminals.
This manual consists of basic information and recommendations concerning the design, installation, start-up and opera-
tion, to ensure a proper fail-free operation of the unit. The key to proper and safe operating of the unit is to read this
manual thoroughly, use the unit according to given guidelines and follow all safety requirements.
Cupboard fans are intended for transportation of air in air handling systems. The fans are meant for use in ducted sys-
tems and should always be duct connected on the inlet side. No moving parts shall be accessible after installation. Cup-
board fans are adapted to continuous operation.
Product and article number:
• VEF 1 — 88685
• VEF 2 — 88684
• VEF 4 — 88686
3.2 Technical data
Safe operating temperature is from -25 °C to +40 °C.
211877 | A006