NuAire R Series Instruction Manual

NuAire Limited
Western Industrial Estate, Caerphilly,
Mid Glamorgan CF83 1XH
Telephone: [phone]
Facsimile: 029 2088 7033
Email: [email protected]
www.nuaire.co.uk
Leaflet 670444
JUNE 2000
OPUS 30 & 60
Recessed Mounted ('R' range)
Domestic Extract Fans
Introduction
The Nuaire OPUS 30 & 60 range of recess mounted domestic
extract fans is 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.
They each discharge air through a 100mm diameter outlet
spigot and have provision for adding a 50mm. dia. subsidiary
inlet to extract air form a second room.
Typical arrangements
Recessed mounting, wall or ceiling
One room extraction
Two room extraction
(with side subsidiary).
Two room extraction
(with rear subsidiary).
Connected to 9’ x 1”
flat duct
Units are available with one or two fans and in two duty sizes,
32 l/s and 61 l/s. Inlet is through twin filters located in the
front cover of the unit and 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
RBasic unit with single fan.
RS Single fan unit incorporating a run on circuit.
2RAS Twin unit incorporating both run-on and fan
failure detection/change over circuits.
RX Single fan unit providing continuous low duty
running with boost when room light is switched on
(Opus 30 only).
Installation
and Maintenance
Contents Page
Introduction ..................................................... 1
Arrangements and Codes ..................................1
Installation .........................................................2
Dimensions & Ancillaries .................................3
Maintenance ......................................................3
Electrical Diagrams ..........................................4
Certification ......................................................5
1
Fig. 1. General view of unit.
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.

Installation and Maintenance OPUS (R range)
2
Installation
a) An opening should be prepared to accept the fan case
plus a clearance of 5 - 10mm which will be necessary to
allow for the fixing brackets. Therefore an area 327mm x
245mm will be required. Care must be taken during this
operation as an aperture larger than 335mm x 253mm
will not be covered by the front panel skirt.
It is assumed that a solid non reverberant mounting posi-
tion 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 prepared. It is also assumed that
compatible ductwork is already installed.
b) Mounting brackets are supplied with all OPUS fans but,
depending on the type of unit, may need to be shortened.
The bracket has a series of notches, one of which is suit
able for your unit. Offer up the bracket to the unit (small
leg of bracket to back of unit) and note the notches which
correspond with the back of the skirt. Using a hacksaw
cut the bracket tolength. Similarly prepare the two
remaining brackets. (Fig. 3).
Attach the three brackets to the large 'Y' shaped plate
using the self tapping screws supplied to form a
mounting frame. (Fig. 4).
Position the mounting frame in the prepared aperture so
that the ends of the three cut brackets are flush with the surface
of the wall. Secure the mounting frame with suitable fixings.
c) Unclip and remove the fan module from the case.
Knock out a suitable cable entry hole in the rear face of
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 it one quarter of a turn to lock in
position, see fig. 5.
Fig.3. Selecting bracket length.
Fig. 4. Mounting frame assembly.
Fig. 5. Fitting a subsidiary spigot (supplied in optional kit)
d) Offer up the casing to the mounting frame feeding the
supply cable through the entry hole. Engage the outlet
spigot(s) in the ductwork and fix the casing to the frame
using the three screws supplied.
e) Connect the wiring to the internal terminal block/socket.
f) Fit the fan module to the case, mating it's plug fully with
the internal socket. Secure in position with the two spring
clips.
g) Re-fit the cover using the 4 screws provided. Fit the fiters
into the front cover panel rebates. NOTE: If a subsidiary
spigot kit is employed the Balancing Plates included can be
inserted under the filters to adjust the extract from the
rooms.Test / run the unit.
Fig. 6. Flatduct installation
Installing the unit into flatduct.
It is assumed that the flatduct is already fitted with a plenum
section incorporating a 100mm dia. spigot in the area of the pro-
posed extract fan.
a) Proceed as in steps (a), (b) & (c) above.
b) Feed the 100mm flexible ducting (supplied) through the
rear of the mounting frame and fit to the spigot on the
flatduct plenum.
c) Offer up the casing to the mounting frame and join the
other end of the flexible ducting to the outlet spigot using
tape (not supplied). Fig. 6.
Feed the electrical supply cable through the entry hole and
fix the case to the mounting frame using the three screws
supplied.
Continue as in (e) to (g) above.
Mounting frame
Flexible
ducting
9" x 1"
flatduct
Timber
battens
Wall fixings
through mtg
frame
Side bracket

Installation and Maintenance OPUS (R range)
3
Maintenance
General
It is inevitable that some dust, fluff etc. will pass through the
filters; if allowed this will build up internally on the motors
and impellers, shortening the life of the unit. It will, in severe
cases, lead 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
little 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 sup-
ply. This is particularly important when dealing with a run-
on circuit (letter S in the Model Code) or a continuously
running fan with boost when the room light is switched on
(letter X in the code).
NOTE
THE INPUT SOCKET TERMINALS WITHIN THIS
UNIT 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 bal-
ance of the impellers. Remove the cover and then the fan
module after releasing the spring clips. Inspect all parts. Clean
the backplate with a brush or dry cloth. 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 invali-
date the guarantee. The unit is guaranteed for a period of 3
years. NOTE: Installation & Maintenance of the equipment
must be as directed in the instructions provided with the unit.
307
230 ctrs
225
158 ctrs
98 OD
2nd room
duct spigot
positions
'A'
55
92
22
5Filters
255
98 O.D.
337
Dimension 'A'
Opus 30 138
Opus 60 182
Dimensions
Optional ancillaries
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
Outlet Baffle Wall Cowl
Subsidiart spigot kit
Roof Cowl 50mm Inlet grille
50 o.d.
30 7

4
N
L
N
L
Switch
Room light
Room light
1
N
L
Switch
RS Unit ventilating one room (using run on circuit).
R Unit ventilating one room.
2RAS Unit ventilating one room (no run on timer).
Fuse
2 Amp max
Fuse
2 Amp max
C
C
Installation and Maintenance OPUS (R range)
Electrical Diagrams
N
LSwitch
Room light
3
1
N
L
2
Fuse
2 Amp max
C
3
1
N
L
2
3
2
1
N
L
2RAS 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
RS Unit ventilating two rooms (using run on circuit).
2RAS Unit ventilating two rooms (using run on circuit).
2RAS 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
3
1
N
L
2
3
1
N
L
2
R Unit ventilating two rooms.
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)
Room light
CC
.
.
.
..
.
.
..
.
.
.
..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
..
.
.
.
.
.
.
.
.
.
.
.
.
.
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
R
26
0.170
0.215
RX on
boost
26
0.170
0.215
2RAS
26
0.170
0.215
R
58
0.190
0.280
2RAS
58
0.190
0.280

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 (‘R’ 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 (R range)
Western Industrial Estate, Caerphilly,
Mid Glam CF83 1XH United Kingdom.
Telephone: [phone] Facsimile: 029 2088 7033,
[email protected]
www.nuaire.co.uk
Leaflet No. 670444
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
interested 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
information.
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 control products.
Telephone: [phone]
Facsimile: 029 2085 8586
GP144
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.
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.