NuAire OPUS 30 Instruction Manual

NuAire Limited
Western Industrial Estate, Caerphilly,
Mid Glamorgan CF83 1XH United Kingdom
Telephone: [phone]
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
1
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)
2
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'
55
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
230
146
165 dia
98 o/d
Birdguard
148
134
98 O.D.
32
125
125
13.5
15
110 fix ctrs
50 O.D.
4 x 3.7 dia fix holes
3

4
N
L
N
L
Switch
Room light
Room light
1
N
L
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
C
C
Electrical Diagrams
N
LSwitch
Room light
3
1
N
L
2
Fuse
2 Amp max
C
BS Unit ventilating one room.
(using run on circuit).
3
1
N
L
2
3
2
1
N
L
N
L
Room light
Fuse
2 Amp max
C
BX Continuous run with boost (Opus 30).
1
N
L
2BAS Unit ventilating one room(using run on circuit).
N
L
Switch
Room light
Remote fail LED
Remote fail LED
3
1
N
L
2
Fuse
2 Amp max
C
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
N
L
Fuse
2 Amp max
Switches (double pole)
Room light
CC
1
N
L
1
N
L
N
L
Fuse
2 Amp max
Switches
(double pole)
Room light
CC
Remote fail LED
N
L
Fuse
2 Amp max
Switches
(double pole)
Room light
CC
3
1
N
L
2
3
1
N
L
2
Remote fail LED
N
L
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
B
26
0.170
0.215
BX on
boost
26
0.170
0.215
2BAS
26
0.170
0.215
B
58
0.190
0.280
2BAS
58
0.190
0.280
Room light
CC
Installation and Maintenance OPUS (B range)

5
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: [phone]
Fax: [phone]
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: [phone] 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: [phone]
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: [phone]
Facsimile: 02920 858586
GP141
NB
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.
6
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.