NuAire OPUS 30 Instruction Manual

NuAire Limited

Western Industrial Estate, Caerphilly,

Mid Glamorgan CF83 1XH United Kingdom

Telephone: 02920 885911

Facsimile: 02920 887033

Email: [email protected]

www.nuaire.co.uk

Leaflet 670443

DECEMBER 2000

OPUS 30 & 60

Surface Mounted ( 'B' range)

Domestic Extract Fans

Installation

and Maintenance

Introduction

Nuaire’s OPUS 30 & 60 range of surface mounted domestic

extract fans are designed to be installed in the area to be ventilat-

ed, for example bathrooms and WC compartments, but are

ideally suited for stores, drying rooms, cupboards, etc.

The fans discharge air through 100mm. dia. outlet spigot and

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

air from a second room.

Typical 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 and in two duty sizes

32 l/s and 61 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 cicuits.

Coding

BBasic unit with single fan.

BS Single fan unit incorporating a run-on circuit.

2BAS Twin unit incorporating both run-on and fan failure

detection/change over circuits.

BX Single fan unit providing continuous low duty

running with boost when room light is switched on.

(Opus 30 only)

Contents Page

Introduction ..................................................... 1

Arrangements and Codes ..................................1

Installation .........................................................2

Dimensions & Ancillaries .................................3

Maintenance ......................................................3

Electrical Diagrams ..........................................4

Certification ......................................................5

IMPORTANT WARNING

Installation and servicing MUST be carried out

by electrically quaIified personnel.

The unit MUST BE TOTALLY ISOLATED from the

electrical supply before removing covers.

NOTE internal input socket will be exposed and

MAY BE LIVE with the fan module removed.

See ‘ISOLATION’ notes.

Fig. 1. General view of unit.

Installation

a) It is assumed that a solid non reverberant mounting posi

tion has been selected, and the necessary passages for duct

work, from outlet spigot and to subsidiary inlet spigot (if a

second room is to be ventilated) as well as the electrical con

nection prepared. It is also assumed that compatible duct

work is already installed.

b) Note that the front cover, fixing screws and filters are

bagged separately. Release the spring clips retaining the fan

module and then withdraw the fan module from the case.

If a second room is to be served, remove the appropriate

weakened 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 casing.

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.

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 cover and fix using the four screws supplied. Fit the

two filters into the rebates on the front cover.

Test/run the unit.

Installation and Maintenance OPUS (B range)

Fig. 3a. Fitting a subsidiary spigot Fig. 3b

Fig. 5. Fan module in position.

Fig. 4. Cable entry

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

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 (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 50mm Inlet grille

160

230

146

165 dia

98 o/d

Birdguard

148

134

98 O.D.

125

13.5

110 fix ctrs

50 O.D.

4 x 3.7 dia fix holes

Switch

Room light

Switch

B Unit ventilating one room.

B Unit ventilating two rooms.

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

Fuse

2 Amp max

Fuse

2 Amp max

Electrical Diagrams

LSwitch

Room light

Fuse

2 Amp max

BS Unit ventilating one room.

(using run on circuit).

Room light

Fuse

2 Amp max

BX Continuous run with boost (Opus 30).

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

Switch

Room light

Remote fail LED

Fuse

2 Amp max

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

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

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

Wiring details for remote indicator.

Fan terminal block

Remote

indicator panel

Fuse

2 Amp max

Switches (double pole)

Room light

Fuse

2 Amp max

Switches

(double pole)

Room light

Remote fail LED

Fuse

2 Amp max

Switches

(double pole)

Room light

Remote fail LED

Fuse

2 Amp max

Switches

(double pole)

Switch

(double pole)

Model

Unit Code

Unit input power (watts)

Full load running current (amps)

*Starting current (amps)

* On starting both fans run together

Opus 30 Opus 60

0.170

0.215

BX on

boost

0.170

0.215

2BAS

0.170

0.215

0.190

0.280

2BAS

0.190

0.280

Room light

Installation and Maintenance OPUS (B range)

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, OPUS60 (‘B’ RANGE)

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

Installation and Maintenance OPUS (B range)

Western Industrial Estate, Caerphilly,

Mid Glam CF83 1XH United Kingdom.

Telephone: 02920 885911 Facsimile: 02920 887033,

[email protected]

www.nuaire.co.uk

Leaflet No. 670443

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.

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: 02920 885991

Controls Application Service (CAS)

A team of Engineers and technicians is available to provide pre

and post order support.

We are on hand to provide help and advice from the most basic

use of any NuAire equipment to the more complex applications,

maximising on the versatility of our SMART and NetLink con-

trol products.

Telephone: 02920 858585

Facsimile: 02920 858586

GP141

If you have any comments or

queries on any of our products or

services please write to the Product

Information Manager at the main

address opposite.

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.

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