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UK - For the inStaLLer

Before using the fan, carefully read these instructions and the warranty conditions.

DUKA PRO MULTI is designed for fixed installation and must be installed by a qualified electrician.

Fold out pages "III" and "IV" to the left and right respectively so that you can see all the

illustrations when reading the user and installation guide.

The PRO MULTI exhaust fan is designed to boost the air flow in houses* with natural draught ventilation. It is

suitable for installation in wet rooms and can be installed in ducts with and without natural ventilation**.

The fan fits ducts with a diameter of Ø or

100 – Ø 140 mm. For larger duct dimensions a cover plate for

the PRO-series must be used. To ensure that the PRO MULTI does not affect other ventilation systems and

is not affected by them, the fan must always be installed in its own duct. Make sure that the duct is clear

of obstructions. Avoid insect mesh, filters and other objects that may obstruct the flow of air. To prevent

condensation in natural draught ducts (in winter), the ducts must be insulated where they pass through

unheated areas such a cold attics.

To avoid backdraughts when the fan is installed in ducts that have no natural draught** (eg through an

external wall), the PRO MULTI is set at the factory to operate continuously at a low speed, so creating a

constant basic flow of ventilation. If the fan is only required to operate with an on/off function, the basic

ventilation flow can be disabled when the fan is installed. For that situation, the fan can be fitted with the

PAX passad backdraught shutter (accessory), provided that another ventilation system ensures the basic

ventilation of the building. (Note that the backdraught fan accessory can not be combined with the fan

function "basic ventilation setting"). NOTE: A backdraught shutter is harmful if the fan is installed in a

ventilation duct with natural ventilation.

The fan is designed for use in a temperature range of 5 to 35 °C. If the fan is installed in a cold area or if it

has been stored in a cold place before installation, it may run slowly when started for the first time. The

fan will work normally when it reaches its working temperature.

inStaLLation

Push the two locking buttons towards the centre (A1) and lift the motor unit out of the frame (see Figure

A). Then remove the motor unit (A2).

Unscrew screw E1 and remove the housing from the frame (see Figure E). The terminal block (E2) is

behind the frame.

The fan may be installed in any position.

The seal supplied (see Figure G) is in three parts: gasket, cuff and cable gland. Separate these from each

other.

Install the gasket (see Figure H). Note that the gasket also serves as a bushing for the screws. For a concea-

led electrical connection, install the cable gland in one of the three knockout openings (H1).

The cable gland must be used for surface electrical connection as well. For this, a breakaway section in the

housing must be removed (see Figure J).

The rubber gasket should be used for assembly in the ceiling, Ø 100 mm pipe (see Figure K).

Secure the frame to the structure with the four screws (see Figure F). The inner holes (F1) have the same

hole pattern as the EL 200 series fans. This makes it easier to change to a PRO-series fan. The outer holes

(F2) are used if the size of the duct limits the space available for firm fixing. (If there is not enough space

for screw fixing, we recommend installing a PRO cover plate.

Do not forget the screw (F3) under the terminal block. It is used to adjust the fan with respect

to the structure so that the impeller is centred in the frame.

Connect in accordance with the wiring diagram. See under Connection below.

Make sure that the housing snaps into place properly when it is fitted to the frame (Figure L).

Tighten the screw (E1). Refit the motor unit to the frame.

Refit the fan unit to the wall frame. The fan will then start automatically and run for at least 10 seconds.

connection

According to the standard for domestic products, EN60 335-1, it must be possible to isolate such

products from the electric power supply. The PRO MULTI is therefore fitted with a multi-pole switch M

(see also page III, Figure A3). Always isolate the product from the electric power supply before doing any

electrical work on it. The fan is set at the factory with functions for basic ventilation, automatic forcing/

starting at high humidity and a presence sensor. It is also prepared for an airing function if the basic

ventilation function is disabled. (See page 10-11 of the Description of operation.) Prepared for forcing/

starting with a manual switch. Check with the user which of the functions below (apart from S1) the user

requires. See also pages 10-11

• S1:

continuous operation in basic ventilation mode, humidity sensor and presence sensor (IR/light)

with a 15-minute timer function

NOTE: a backdraught shutter cannot be combined with

the basic ventilation mode.

• S2:

as for S1 without active basic ventilation, but with airing function.

• S3:

as for S1 and with a forced 15-minute run-on time via a switch

be combined with the basic ventilation mode.

• S4:

as for S3 without active basic ventilation, but with airing function

The fan is designed for 230V AC (± 10%) ~50Hz. It is double-insulated and must not be grounded.

Hand this user and installation guide to the user when the installation is complete.

UK - For the inStaLLer

NOTE: a backdraught shutter cannot