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3
Product information
3.1
General
This manual concerns Duct fans prio 315-400 AC/EC manufactured by Pacific Ventilation Pty Ltd).
The EC-fans are delivered with potentiometer, 0–10 V. The integrated potentiometer is factory preset to 10 V. This val-
ue can be changed manually to obtain a different motor rpm/fan performance. Fan performance charts for this purpose
are shown in the table by voltage steps (chapter 3.2.2). An external potentiometer or other controller 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.
The prio 315-400 AC/EC are intended for transportation of air in air handling systems. The fans are meant for use in
ducted systems and should always be duct connected on the inlet side. No moving parts shall be accessible after instal-
lation. prio 315-400 AC/EC are adapted to continuous operation.
Danger
• The fans are not to be used in hazardous environments or connected to flue ducts.
• The appliance must be connected to a mains circuit breaker in the fixed installation.
• Switch power off (all-pole circuit breaker) before servicing or maintenance, and make sure the impeller
has come to standstill.
• Make sure protection grid has been installed (EN ISO 13857), no moving parts shall be accessible after
installation.
• Do not remove, short-circuit or disconnect safety accessories (i.e. motor protection, safety grille).
Warning
• The fans can have sharp edges and corners which may cause injuries. Be careful when opening the fans,
the motor assembled on the motor bracket is relatively heavy.
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.
269415 | A001
