NuAire OPUS 30 Bedienungsanleitung

NuAire Limited

Western Industrial Estate Caerphilly,

CF83 1XH United Kingdom.

Telephone: 029 2088 5911

Facsimile: 029 2088 7033

Email: [email protected]

www.nuaire.co.uk

Leaflet 670626

SEPTEMBER 2001

OPUS 30 12 Volt

Surface Mounted ('B' range)

Domestic Extract Fans

Introduction

NuAire's OPUS 30 range of surface mounted domestic extract

fans are designed not only to meet the requirements of the

building regulations document F1 1990, but also that of the

16th edition IEE Wiring Regulations On Site Guide.

The units are designed to ventilate bathrooms / shower rooms

where the unit is to be mounted in the 'splash zone'.

(See Installation section).

They discharge air through 100mm dia. pipe and have

provision for adding a 50mm. dia. subsidiary inlet to extract air

from a second room.

Ty pical arrangements

surface mounting, wall or ceiling

One room extraction

Two room extraction

(with side subsidiary).

Two room extraction

(with rear subsidiary).

Semi recessed version

Units are available with one or two fans (run & standby) with

a duty of 32 l/s.

Inlet is through filters located on the front cover of the unit

which can easily be removed for cleaning.

Units can be fitted with a selection of controls which enable

them to be linked to light switches, either directly or through

run-on circuits.

Coding

BS12 Single fan unit incorporating a run-on circuit.

2BAS12 Twin unit incorporating both run-on and fan.

failure detection/change over circuits.

Installation

and Maintenance

Contents Page

Introduction 1

Arrangements and Codes 1

Installation 2

Adjusting the run on timer 2

Dimensions & Ancillaries 3

Maintenance 3

12V Transformer details 4

Spares & Service 5

Electrical Diagrams 6

Fig. 1. General view of unit.

Adjusting the run-on timer

Remove cover. Locate the Time Delay Adjustment at the

plastic box integral with the fan module directly between and

under the fan scroll mouldings (see fig. 5). Re-set against the

graduated scale. Re-fit the cover.

d) Fit the fan module to the case, mating it's plug fully

with the internal socket. Lock with the spring clips.

Fig. 5.

e) Fit the front cover using the four screws supplied.

Fit the two filters into the rebates in the front cover.

Test/run the unit.

c) Position the case in the mounting position, connect to

the ductwork and feed the supply cable through the

cable entry. Fig. 4.

Secure with three No. 8 woodscrews, drilling and

plugging the mounting surface if necessary. Connect

the wiring to the internal terminal block/socket.

Installation and Maintenance OPUS 12V (B range)

Fig. 5. Fan module in position

Fig.3. Fitting a subsidiary spigot.

Fig. 4. Cable entry

Installation

Note: 'SPLASH ZONE'

The splash zone can be considered to be an area within a bath-

room or shower room where a person using the bath or shower

could effectively reach. An arms reach is defined as 0.6 metres

from the edge of the bath or shower up to a height of 2.25

metres.

a) It is assumed that a solid non reverberant mounting

position has been selected, and the necessary passages

for ductwork, from outlet spigot and to subsidiary

inlet spigot (if a second room is to be ventilated) as

well as the electrical connection have been prepared.

It is also assumed that compatible ductwork is already

installed.

b) Remove the fan module from the case.

If a second room is to be served, remove the

appropriate knockout area from the case and working

from the inside fit the subsidiary inlet spigot by

passing it through the case and turning quarter of a

turn to lock. Fig 3a and 3b. Remove the relevant

cable entry in the back of the casing.

Spring

clips

Humidistat

adjuster and / or Timer

adjuster

Dimensions

Optional ancillaries

Maintenance

General

It is inevitable that some dust, fluff etc. will pass through the fil-

ters, and which, if allowed, will build up internally on motors

and impellers, shortening the life of the unit and, in severe cases,

leading to overheating of the motors.

Consequently, it is strongly recommended that all units are

inspected and cleaned every six months. To clean the filters,

remove them from the unit , wash in tepid water to which a lit-

tle mild detergent has been added. Shake out excess water and

allow to dry naturally. Replace when dry.

Isolation

Ensure that the unit is totally isolated from the electrical supply.

This is particularly important when dealing with a run-on cir-

cuit or a continuously running fan unit with boost when the

room light is switched on (letter X in the Model Code) AS THE

INPUT SOCKET TERMINALS WITHIN THESE UNITS

REMAIN LIVE, EVEN WHEN THE ROOM LIGHT OR

OTHER ACTUATING SWITCH IS OFF. Take care therefore

when working within the case with the fan module removed.

Procedure

At all times, take care not to damage, distort or disturb the

balance of the impellers. Remove the cover and then the fan

module after releasing the spring clips. Inspect all parts.

Using a brush or dry cloth clean the backplate. Lightly brush

away dust and dirt from the fan module. If stubborn, carefully

remove with a suitable blade or scraper. Wash the cover in warm

soapy water. Dry thoroughly. Refit the fan module, followed by

the cover. Test/run the unit.

Adjusting the run-on timer

Remove cover. Locate the Time Delay Adjustment at the plastic

control box integral with the fan module. Re-set against the

graduated scale. Re-fit the cover.

Warranty

The plastic control box integral with the fan assembly is a sealed

component. Breaking the plastic sealing tie will invalidate the

guarantee. The unit is guaranteed for a period of 3 years.

Installation and Maintenance OPUS 12V (B range)

307

225

98 OD

2nd room

duct spigot

positions

'A'

5Filters

98 O.D.

230 ctrs

3 x Fixing holes

(Drill and plug mtg

position for

No.8 Woodscrews)

158 ctrs

Dimension 'A'

Opus 30 138

Opus 60 182

Knockouts

for cable entry

Knockouts for optional

Subsidiary spigot

View on back of case

Outlet Baffle Roof Cowl Wall Cowl Subsidiary Spigot 50mm Inlet grille

160

230

146

165 dia

98 o/d

Birdguard

148

134

98 O.D.

50 o.d.

30 7

125

13.5

110 fix ctrs

50 O.D.

4 x 3.7 dia fix holes

Installation and Maintenance OPUS 12V (B range)

12v Transformer details

Installation of Transformer enclosure

The enclosure containing the transformer is intended to be

mounted out of sight (e.g. in a loft, cupboard, under floorboards

etc.). However, if this is not possible the transformer enclosure

should be mounted as close to the ceiling, or as far from the

"splash zone" as possible (see page 2 for definition of the splash

zone). As can be seen from the table of wiring sizes on page 5,

it is advisable to place the enclosure as close to the fan as

possible to reduce the costs of wiring and assist in installation.

Procedure

1. Remove two screws securing the cover and remove the cover.

2. Position the enclosure on mounting surface and route cables

into rear. Mark the fixing points on the mounting surface and

secure using suitable fixings (by others).

3. Connect wiring as shown.

4. Replace cover.

KEEP VENTS CLEAR OF OBSTRUCTION.

NOTE:

NO EARTH IS TO BE CONNECTED BETWEEN

TRANSFORMER AND FAN

SIDE VIEW

PLAN VIEW

VIEW INSIDE COVER

END VIEW

Cover fixings

147 mm 85 mm

85 mm

60 mm

Mains supply

230v 1ph 50Hz

12v supply to fan

N L SL 240V

N L SL

12V

Spares

OPUS 30 single fans

ITEM PART No.

Front grille assembly 770874

Foam Filter set (all units). 630016

Transformer assembly 771921

Internal assembly:

BS12 units 771287

OPUS 30 Twin fans

ITEM PART No.

Front grille assembly 770874

Foam Filter set (all units). 630016

Transformer assembly 771922

Internal assembly:

2BAS12 units 771290

Service

As a manufacturer NuAire provides you with factory trained

Service Engineers.

Our Engineers are supported by a comprehensive range of spare

parts 'off the shelf'.

If you are an industrial or commercial user, you may be interest-

ed in details of NuAire's regular maintenance Service Contracts.

This is a worthwhile service that helps you get the most from

our products.

Our Service Department will be happy to give you more infor-

mation.

Please telephone: 029 2085 8585

Please fax: 029 2085 8586

3 Year Warranty

The three year warranty starts from the date of delivery and

includes parts and labour for the first year.

The labour element is subject to full, free and safe access to the

equipment as recommended by the CDM regulations.

The remaining two years covers replacement parts only.

NOTE:

Installation & Maintenance of the equipment must be as

directed in the instructions provided with the unit.

Installation and Maintenance OPUS 12V (B range)

Installation Notes:

TABLE OF WIRING SIZES

It is important to note that the size of wire used between the

transformer and the fan unit can have an adverse effect on the

units performance if the following table is not adherred to.

Mains supply (240v) ......................0.5mm sq.

TRANSFORMER TO FAN

Cable run (max. 10m) Cable size

Up to 2m ...................................0.75mm sq.

Up to 4m ...................................1.00mm sq.

Up to 6m ...................................1.50mm sq.

Up to 10m .................................2.50mm sq.

Power consumption

Unit input power (watts). ..............................42.0

Full load current (amps). ................................ 4.2

Starting Current (amps). ............................... 4.4

Transformer input power (watts)................ 67.0

Full load current (amps). ............................... .34

Starting Current (amps). .............................. .35

Switch

240v 12v

Room light

Transformer

●

●●

●

Switch

●●

BS12 Unit ventilating one room (using run on circuit).

BS12 Unit ventilating one room. BS12 Unit ventilating two rooms.

2BAS12 Unit ventilating one room, (no run on timer).

Fuse

2 Amp max

Fuse

2 Amp max

Switches (double pole)

Fuse

2 Amp max

Room light

Installation and Maintenance OPUS 12V (B range)

Electrical Diagrams

240v 12v

Transformer 3

LSwitch

240v 12v

Transformer

240v 12v

Room light

●

●●

●

Fuse

2 Amp max

240v 12v

Transformer

240v 12v 3

2BAS12 Unit ventilating one room (using run on circuit).

Switch

Room light

Remote fail LED

●

Fuse

2 Amp max

●

Fuse

2 Amp max

Switches

(double pole)

Room light

●

BS12 Unit ventilating two rooms (using run on circuit).

2BAS12 Unit ventilating two rooms (using run on circuit).

Fuse

2 Amp max

Switches

(double pole)

Room light

●

2BAS12 Unit ventilating two rooms, (no run on timer).

Wiring details for remote indicator.

Fuse

2 Amp max

Switches

(double pole)

Room light

Fan terminal block

Remote

indicator panel

We declare that the machine named below

conforms to the requirements of EC Council Directives

relating to Electromagnetic Compatibility and

Safety of Electrical Equipment.

Designation of machinery :- OPUS EXTRACT FANS

Machinery Types :- OPUS 30 (‘B’ RANGE) 12VOLT

Relevant EC Council Directives :- 89/336/EEC, 92/31/EEC (EMC)

73/23/EEC, 93/68/EEC (Low Voltage Directive)

Applied Harmonised Standards :- E50081-1, EN50082-1, EN60204-1

EN60335-2-80

Basis of Self Attestation :- Quality Assurance to BS EN ISO 9001

BSI Registered Firm Certificate No. FM 149

Signature of manufacture representatives :-

Name: Position: Date:

1) C. Biggs Technical Director 3. 3. 00

2) W. Glover Manufacturing Director 3. 3. 00

NuAire Limited,

Western Industrial Estate,Caerphilly, Mid

Glamorgan,CF83 1XH.

United Kingdom.

Telephone: 02920 885911

Fax: 02920 887033

Email: info @ nuaire.co.uk

www.nuaire.co.uk

MARCH 2000

DECLARATION

OF CONFORMITY

Western Industrial Estate, Caerphilly,

CF83 1XH United Kingdom.

Telephone: 029 2088 5911 Facsimile: 029 2088 7033,

Email: [email protected] www.nuaire.co.uk

Leaflet No. 670626

Technical or commercial considerations may, from time to time,

make it necessary to alter the design, performance and dimensions

of equipment and the right is reserved to make such changes

without prior notice.

Installation and Maintenance OPUS 12V (B range)

NOTES

If you have any comments or

queries on any of our products or

services please write to the

Marketing Services Manager at the

main address opposite

GP146

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