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12. 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, smoking 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. Back-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 socket. 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, mark
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
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Figure 3. Removing the impeller transit-packing pieces (1 and 2).
Nuaire: A Trading Division of Polypipe Limited
Western Industrial Estate
Caerphilly United Kingdom CF83 1NA
Ca
T: 029 2088 5911 F: 029 2088 7033 E: [email protected] W: www.nuaire.co.uk
