2
17. 03. 22. Document Number 671218
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
OPUS100/150-M
Installation Manual
2.0 INTRODUCTION
Manufactured in galvanised steel, the unit is designed to serve toilets,
storerooms, 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.
For EMC the ambient temperature limit for the Opus plus range is
24°C (or 25°C if the speed pot is restricted to ¼ turn above
minimum).
1
Unit Airflow
2.1 Opus Fan Range
Code
Description
Power / FLC
at Full Speed
OPUS100-M
Single Fan Unit
100 W / 0.39 A
OPUS100-2M Twin Fan Unit (Run / Standby Auto Duty
Share)
100 W / 0.39 A
OPUS150-M
Dual Fan Unit (Both Motors Running
Simultaneously)
200 W / 0.78 A
3.0 Dimensions (mm) & Weights
2
Dimensions (mm) & Weights
500
330
50
Filters
3.
2.
Filters
2.
2.
2.
1.
4.
4.
4.
4.
End View
Airflow
Top View
200
260
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
Unit
Weight (kg)
OPUS100-M
10
OPUS100-2M
11
OPUS150-M
11
4.0 MECHANICAL INSTALLATION
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, 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 (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.
Ensure transit packing pieces A & B are removed before applying
power to unit.
3
Removing Transit Pieces
Electrical
terminal block
Cable grommet
Motor plate
fixing screws (2)
Motor assembly
Earth post
A
B
4.1 Unit Mounting Bracket
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 4). Offer the unit to the bracket as shown and secure into
position with the one point-fixing bolt. Connect inlet and outlet
ducting.
4
Unit Mounting Bracket
Mounting bracket
to structure fixings
Bracket tongues
must engage
with case slots
Bracket tongues engage with
case slots, then case rotated
up to align with fixing screw
hole