NuAire OPUS 30 Instruction Manual

OPUS 30 and 60
Duct Mounted ('M' range)
Domestic Extract Fans
Installation
and Maintenance
NuAire Limited
Western Industrial Estate, Caerphilly,
Mid Glamorgan CF83 1XH
Telephone: [phone]
Facsimile: 02920 887033
Email: [email protected]
www.nuaire.co.uk
Leaflet 670445
DECEMBER 2001
Introduction
Nuaire’s OPUS 30 & 60 range of duct mounted domestic extract
fans are designed to extract small volumes of air through 100 mm
dia. pipes, with provision for adding a 50 mm dia. subsidiary unit
to extract air simultaneously from a second room.
Units are available with one or two fans and in two duty sizes
32l/s and 55l/s Inlet is through a 100 mm dia.pipe located on the
front of the unit.
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.
Ty pical arrangements
Duct mounting - horizontal or vertical*
One room extraction
Two room extraction
Wall mounting
Coding
MBasic unit with single fan
MS Single fan unit incorporating a run-on circuit,
adjustable between 5 and 30 mins.
2MAS Twin unit incorporating both run-on and fan failure
detection/change over circuits.
MX Single fan unit providing continuous low duty running
with boost when room light is switched on.
(Opus 30 only)
Installation
a) It is assumed that a solid non reverberant mounting posi-
tion has been prepared inside the duct passage area and the
necessary ductwork already installed with adequate clear-
ance on the inlet side to allow fitting of the flexible ducting
supplied with the unit. It is also assumed that the electrical
connections are in position and if a second room is to be
ventilated, the ductwork for a subsidiary spigot has been
made ready.
Contents Page
Introduction...............................................................1
Arrangements and Codes..........................................1
Installation..................................................................2
Dimensions and Ancillaries.......................................3
Maintenance...............................................................3
Electrical Diagrams............................................. .......4
Certification ...............................................................5
Fig. 1 General view Opus 60M
False ceiling
Subsidiary
inlet
Mounting
bracket
Discharge must be
uppermost
VERTICAL MOUNTING
Inlet grille
Access panel
Flexible
ducting
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.
1

b) Separate the two halves of the unit by releasing the two
clips on either side of the unit. Release the two internal
clips and remove the fan unit. See Fig. 3.
Fig. 3. General view, cover and fan unit removed.
c) If a second room is to be served, remove the appropriate
weakened area from either cover 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. 4a
and 4b. Remove the relevant cable entry in the back of the
casing.
Fig. 4a. Fitting a subsidiary spigot Fig. 4b
d) Fit the mounting brackets (supplied) to the portion of the
case containing the wiring socket, using four self-tapping
screws and washers supplied. Fig. 5.
Fig. 5 Fitting the mounting brackets.
e) Assemble the outlet spigot to the ducting and fix the casing
to a solid non-reverberant surface using four No. 8 wood
screws through the mounting brackets drilling and plug-
ging the fixing area if necessary.
Fig. 6a Vertical mounting Fig 6b Horizontal mounting
Note:
When the unit is mounted in a vertical configuration it is
important that the air flow is upwards so that the gravity operat-
ed shutters will work properly (see Fig. 6a). For horizontally
mounted units ensure that case is installed as shown in Fig. 6b.
Fig. 7 Cable entry.
f) Feed the supply cable through the cable entry Fig. 7.
Connect the wiring to the internal terminal block/socket.
Fig. 8 Fan module in position.
g) Fit the fan module to the case, mating it’s plug fully with
the internal socket. Lock with the spring clips. Fig. 8.
h) If a second room is to be ventilated, connect the subsidiary
ductwork to the 50mm spigot.
i) Secure the adaptor to the 100mm dia. flexible ducting
supplied using duct tape (by others). Insert the adaptor
into the already prepared inlet side ductwork and seal. Fit
the other end of the flexible ducting to the spigot on the
remaining (cover) half the case. Fig. 9.
Fig. 9 Fitting the flexible ducting.j)
j) Replace the cover. Test/run the unit.
Installation and Maintenance OPUS ( M range )
2

Installation and Maintenance OPUS ( M range )
3
Maintenance
General
Dust, fluff etc. 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.
Isolation
Ensure that the unit is totally isolated from the electrical sup-
ply. This is particularly important when dealing with a run-on
circuit or a continuously running fan unit with boost when
the room light is switched on (letter X in the Model Code)
NOTE 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 bal-
ance of the impellers. Remove the cover and then the fan
module after releasing the spring clips. Inspect all parts. With a
brush or dry cloth clean the backplate.
Lightly brush away dust and dirt from the fan module. If stub-
born, 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.
Adjusting the run-on timer
Remove cover. Locate the Time Delay Adjustment at the plas-
tic box integral, with the fan module. Re-set against the gradu-
ated 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. First first year parts and labour, remaining two years
parts only.
2nd room duct
spigot positions
98 O.D.
158 ctrs
225
10
230 ctrs
307
A
92
168
Dimension 'A'
Opus 30 144
Opus 60 188
55
Dimensions
Optional
ancillaries
50 & 100 mm Inlet grilles Roof Cowl Wall Cowl Outlet Baffle
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
125
125
13.5
15
110 fix ctrs
99 O.D.
4 x 3.7mm dia fix holes
on 110 mm fixing ctrs

Installation and Maintenance OPUS ( M range )
4
N
L
N
L
Switch
Room light
Room light
1
N
L
Switch
M Unit ventilating one room.
M Unit ventilating two rooms.
2MAS 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
MS 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
MX Continuous run with boost (Opus 30).
1
N
L
2MAS 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
MS Unit ventilating two rooms (using run on circuit).
2MAS Unit ventilating two rooms (using run on circuit).
2MAS 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
M
26
0.170
0.215
MX on
boost
26
0.170
0.215
2MAS
26
0.170
0.215
M
58
0.190
0.280
2MAS
58
0.190
0.280
Room light
CC

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 30, OPUS 60 EXTRACT FANS
Machinery Types :- ‘M’ IN-LINE DUCTED
Relevant EC Council Directives :- 89/336/EEC, 92/31/EEC (EMC)
73/23/EEC, 93/68/EEC (Low Voltage Directive)
Applied Harmonised Standards :- E55014-1, EN55014-2, 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
5

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
GP 142
Western Industrial Estate, Caerphilly,
Mid Glam CF8 1XH United Kingdom.
Telephone: [phone]
Facsimile: 02920 887033
www.nuaire.co.uk
Leaflet No. 670445
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 ( M range )
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
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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