NuAire Opus 100-B Instruction Manual

112. 05. 17. Leaflet Number 670967
Opus 100-B & 150-B
Surface Mounted Extract Fans
Installation and Maintenance
2.0 Introduction
A surface mounted unit designed to serve toilets, store rooms,
small offices, restaurants, smo ing areas etc. for installation
on the ceiling or wall of the area served.
For full specification, dimensions and weights etc. refer to
catalogue.
The range includes single and twin fan models, air inlet is via
front side mounted filters exiting via a 125mm spigot at the
rear. Bac -draught shutters are an optional extra LED indicators
on the case cover provide local run/fail status indication.
3.0 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 removable access cover to
reveal and remove fan internals and facilitate first fix
installation. Ensure that all electrical and ducting services are
compatible to the installation and the desired control function
before proceeding.
4.0 Mechanical installation
Remove the unit internals; release the two M4 cover screws
and remove the cover, lift the electronic control module (about
15mm) to disengage from the base soc et. Disconnect the PIR
(if fitted) and unscrew the four M5 x 35mm blower assembly
retaining screws and lift out the fan unit internals.
Select a solid non-reverberant mounting position with a mini-
mum of 50mm from any side-wall and ceiling. Observe the
footprint detail, particularly the mains cable entry point, mar
and drill the chosen structure and fix the case with appropriate
anchor bolts or screws. Connect and fix.
Figure 1. Wall mounting
Opus fan range
Code Description Power/FLC
at full speed
OPUS 100-B A single fan unit 100W/0.39A
OPUS 100-BP A single fan unit with 100W/0.39A
integral PIR
OPUS 100-2B A twinfan unit with 100W/0.39A
run and standby and
auto duty share
OPUS 100-2BP A twinfan unit with 100W/0.39A
run and standby and
auto duty share and
integral PIR
OPUS 150-B A dual fan unit with 200W/0.78A
both motors running
OPUS 150-BP A dual fan unit with 200W/0.78A
both motors running
and integral PIR
1.0 Typical arrangements
Figure 2. Ceiling mounting
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 3. Removing the impeller transit-pac ing 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 670967
Installation and Maintenance Opus 100-B & 150-B Surface Mounted Extract Fans
5.0 Electrical installation
Notes
nTo ease electrical connection, remove the six-way
termination bloc and inlet filter grilles
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
nFor units with integral PIR option; the PIR is situated
in an aperture behind the front cover and activates
the unit to full speed when movement is detected. In
this instance the overrun timer operates in both wiring
modes
6.0 Setting to wor
All the control functions and adjustments are located on
the electronic control module. An adjusting 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. The overrun time
is factory set at zero, fully anti cloc wise and can be adjusted
up to thirty minutes by turning the adjustment cloc wise.
Test by activating/deactivating the switched live circuit.
(b) Setting the full (MAX) speed
The full/MAX speed is factory set at 100%, fully cloc wise
and can be adjusted down to 50% (fully anti cloc wise) by
adjusting the setting screw anti cloc wise with the setting
tool supplied.
(c) Setting the low (MIN or tric le) speed
The low or tric le speed is factory set at zero, fully anti
cloc wise and can be adjusted upwards to a maximum of
50% speed by turning the adjusting screw cloc wise with
the setting tool supplied.
Note; the fan has to be wired as diagram 5 and activated
via the switched live for the tric le (low speed) to boost
(max speed) to be operative.
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 (on/off), no tric le vent
and no run on timer.
3
1
N
L
2
N
L
Unit terminal block
Fuse 2A max
Earth
post
Figure 5. Wire for tric le vent/ boost vent and timed overrun.
Either feature can be nullified by setting the adjustment screws
to zero.
Electrical
terminal block Cable grommet
Motor plate
fixing screws (2)
Motor assembly
Earth post
1
2
Figure 6. Removing the impeller transit-pac ing pieces (1 and 2).
Figure 7. Electronic control module adjustments.
Remote status
indicator socket
(b) Full Speed
50 - 100% (a) Run On Timer
(C) Low Speed
0 - 50% (trickle vent)
Fan motor socket
Run LED
Fail LED

312. 05. 17. Leaflet Number 670967
Installation and Maintenance Opus 100-B & 150-B Surface Mounted Extract Fans
7.0 Dimensions (mm) and Weights
Dimensions (mm) and weights
Fan Unit ABCDEFGWeight
OPUS100-B 160 335 320 125 50 160 248 5 g
OPUS100-BP 160 335 320 125 50 160 248 5 g
OPUS100-2B 160 335 320 125 50 160 248 6 g
OPUS100-2BP 160 335 320 125 50 160 248 6 g
OPUS150-B 160 335 320 125 50 160 248 6 g
OPUS150-BP 160 335 320 125 50 160 248 6 g

4
Installation and Maintenance Opus 100-B & 150-B Surface Mounted Extract Fans
Isolation - Before commencing wor
ma e sure that the unit is electrically isolated
from the mains and switched live supply.
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, HVCA etc.
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, sha e out excess water and allow to dry
naturally. Do no replace until dry.
Remove the blower assembly as Figure 5. Inspect all parts
and ta e 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 eep extensive stoc s of spares for quic 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, ma e it necessary to alter the design, performance and
dimensions of equipment and the right is reserved to ma e such changes without prior notice.