NuAire Opus 100-2M Instruction Manual

112. 05. 17. Leaflet Number 671218
Opus 100-M & 150-M
Duct Mounted Extract Fans
Installation and Maintenance
1.0 Introduction
Manufactured in galvanised steel, the unit is designed to
serve toilets, store rooms, small offices, restaurants,
smoking areas etc. and for duct mounting applications
usually in the ceiling or service voids above the areas
served. For full specification, dimensions and weights etc.
refer to catalogue.
2.0 Installation
The installation must be completed by competent persons
in accordance with good industry practice and should
conform to all governing and statutory bodies i.e. IEE,
CIBSE, COHSE, HVCA etc.
The unit comprises a full length access cover, to reveal
filter and fans and is supplied with outlet spigot fitted and
‘knockouts’ to be removed at the chosen inlet positions.
Prepare the unit for installation by removing the access
cover, all internal packaging and the fan assembly (which
is supplied loose in the box). Replace the unit cover and
knock out the chosen inlet spigot points and fit the
matching spigots.
Ensure that all electrical and ducting services are compatible
to the installation and the desired control function.
3.0 Mechanical installation
Select a solid non-reverberant mounting position, remove
the unit support bracket and fix the bracket to the chosen
structure with appropriate anchor bolts or screws.
The fan can be installed using the integral mounting bracket
supplied (Figure 3). Offer the unit to the bracket as shown
and secure into position with the one point-fixing bolt.
Connect inlet and outlet ducting.
Figure 1. General view of unit showing airflow.
Mounting bracket to
structure fixings.
Bracket tongues engage with
case slots, then case rotated
up to align with fixing screw
hole.
Figure 3.
Bracket tongues
must engage
with case slots.
Opus fan range
Code Description Power/
FLC at full speed
OPUS 100-M A single fan unit 100W/0.39A
OPUS 100-2M A twinfan unit with 100W/0.39A
run and standby and
auto duty share
OPUS 150-M A dual fan unit with both 200W/0.78A
motors running
The EMC Directive
2014/30/EU
The Low Voltage
Directive
2014/35/EU
Note: For EMC the ambient temperature limit for the
Opus plus range is 24 deg C (or 25 deg if the speed pot
is restricted to ¼ turn above minimum). WARNING -
REMOVE TRANSIT PACKING PIECES BEFORE
APPLYING POWER TO UNIT
Electrical
terminal block Cable grommet
Motor plate
fixing screws (2)
Motor assembly
Earth post
1
2
Figure 2. Removing the impeller transit-packing pieces (1 and 2).
Nuaire: A Trading Division of Polypipe Limited Western Industrial Estate Caerphilly United Kingdom CF83 1NACa
T: 029 2088 5911 F: 029 2088 7033 E: [email protected] W: www.nuaire.co.uk

212. 05. 17. Leaflet Number 671218
4.0 Electrical installation
Offer the single phase supply wiring, 230V switched live
wire and the wires of any externally installed sensors or
controls via the case side grommets.
Notes
nTo ease electrical connection, remove the six-way
termination bloc
nThe mains wiring must be from a fixed wiring
installation and both mains and switched live must
be connected via a common local isolator
nThe earth wire must be connected to the earth post
provided and not to the six-way termination bloc
nRefer to remote sensor data sheets for their
installation and connection
5.0 Installing and removing the
blowers and control module
Remove the cover and withdraw the ‘V’ shape filter from
the case. Lift out the loose blower assembly, remove the
two motor retaining screws (A) which will be used to fix
the motor plate into position.
Tilting the top of the mounting plate forwards, locate the
bottom of the plate into the channel provided in the case
(C). Swing up the motor flush with the plenum (B) and
secure with the two fixing screws (A). Expand ‘V’ shape
filter and fit into case.
Finally locate the control module in to the blowers moulded
guides and push the module in to the terminal block,
ensuring that spade connections are engaged. Connect the
motor plugs and remote status indicators (if used) to the
sockets in the control module.
Turn on mains power and test run the unit.
Installation and Maintenance Opus 100-M & 150-M Duct Mounted Extract Fans
Electrical
terminal block Cable grommet
Motor plate
fixing screws (2)
Motor assembly
Earth post
1
2
Motor plate
fixing screws (2)
C
Motor plate
locates into
bottom channel
Terminal
block
Control
module
pulls out
to remove
B
Plenum
plate
Control
module
A
Drop motor plate
assembly forward
during fitting
to plenum
Figure 7. Fitting/removing the motor plate assembly.
Figure 6. Removing the impeller transit-packing pieces (1 and 2).
3
1
N
L
2
N
L
Unit terminal block
Fuse 2A max
Link for switched live
Earth
post
Figure 4. Wire for full speed operation only.
3
1
N
L
2
N
L
Unit terminal block
Fuse 2A max
Earth
post
Figure 5. Wire for trickle vent/boost and timed overrun.

312. 05. 17. Leaflet Number 671218
Installation and Maintenance Opus 100-M & 150-M Duct Mounted Extract Fans
Dimensions (mm) & weights
Fan Unit AB C D EWeight
(Kg)
OPUS100-2M 500 330 260 200 50 11
OPUS100-M 500 330 260 200 50 10
OPUS150-M 500 330 260 200 50 11
7.0 Dimensions and Weights
A
B
E
Filters
Filters
3.
2.
2.
2.
2.
1.
4. 4.
4. 4.
End View
Airflow
Top View
6.0 Setting to wor
All the control functions and ad ustments are located on
the electronic control module. An ad usting tool is provided
clipped to the blower casing.
(a) Setting the run on timer
The overrun feature is only active when the fan is connected
to a switched live as in wiring diagram 4 on page 2. The
overrun time is factory set at zero, fully anti clockwise and
can be ad usted up to thirty minutes by turning the ad ust-
ment clockwise. Test by activating/deactivating the
switched live circuit.
(b) Setting the full (MAX) speed
The full/MAX speed is factory set at 100%, fully clockwise
and can be ad usted down to 50% (fully anti clockwise) by
ad usting the setting screw anti clockwise with the setting
tool supplied.
(c) Setting the low (MIN or tric le) speed
The low or trickle speed is factory set at zero, fully anti
clockwise and can be ad usted upwards to a maximum of
50% speed by turning the ad usting screw clockwise with
the setting tool supplied.
Note; the fan has to be wired as diagram 5 on page 2 and
activated via the switched live for the tric le (low speed)
to boost (max speed) to be operative.
Figure 8. Electronic control module ad ustments.
(a) Run On
Timer
Fail LED
Run LED
(b) Full Speed
50 - 100%
(c) Low Speed
0 - 50% (trickle vent)
Fan motor socket
Remote status
indicator socket
DC
2.
Key:
1. 1 x 150 Dia. Spigot Knockout
2. Cable Access
3. Single Screw Unit Fixing
4. 4 x 100 Dia. Spigot Knockouts
5. Access Panel (full length of unit)
5.
4.
4.
Side View
Airflow

412. 05. 17. Leaflet Number 671218
Installation and Maintenance Opus 100-M & 150-M Duct Mounted Extract Fans
8.0 Maintenance
Maintenance should only be completed by competent
persons in accordance with good industry practice and
should conform to all governing and statutory bodies
i.e. IEE, CIBSE, COHSE, HVCA etc.
Before removing covers ensure that all electrical
services (including the switched live) are fully isolated
from the mains supply.
The fan should be examined three months after
commissioning and, dependent on the level of contamination
present, at six monthly intervals thereafter.
Remove the filter and wash in tepid water with a mild
detergent added, shake out excess water and allow to dry
naturally. Do no replace until dry.
Remove the blower assembly as Figure 7. Inspect all parts
and take care to retain all control settings, with a brush or
dry cloth remove all dirt and debris from the fan plate and
case, lightly brush away all dirt and debris from the fan
assembly. Reassemble the unit and test/run.
9.0 Optional external sensors
and controls
Refer to the appropriate data sheet for installation and
usage details.
Device Code Data sheet ref.
PIR sensor 230-PIR NT 670610
Thermostat OPUS+TSTAT 670988
Humidistat OPUS+HUMISEN 670987
Remote speed control OPUS-SPD 671219
Volt free status
indicator OPUS100/150VF 671197
10.0 Replacement of parts
Nuaire keep extensive stocks of spares for quick delivery,
when ordering please clearly identify the part required and
quote the product code, serial number and ARC number
from the fan rating label.
11.0 3 Year Warranty
The three-year warranty starts from the day of delivery
and includes parts and labour for the first year, the
remaining period covers parts only.
This warranty is void if the equipment is modified without
authorisation, is incorrectly applied, misused,
disassembled, or not installed, commissioned and
maintained in accordance with the details contained in this
manual and general good practice.
The product warranty applies to the UK mainland and in
accordance with Clause 14 of our Conditions of Sale.
Customers purchasing from outside of the UK should
contact Nuaire International Sales office for further
details.
12.0 After Sales Enquiries
For technical assistance or further product information,
including spare parts and replacement components, please
contact the After Sales Department.
Telephone [phone]
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.