NuAire SINGLEPAK SP125 Installation And Maintenance Manual

SINGLEPAK
In Line Single Fan
Rating plate
Mounting
feet supplied
Fig. 1 General view of fan unit

Introduction

The Singlepak range of In Line singlefans are rectangular in sec-
tion and manufactured in galvanised steel. The fan units and the
matching ancillaries are fitted with circular spigots. Fans are
available with duties up to 0.95m
extract or air input.
Integral backdraught shutters fitted as standard. Access panels
top and bottom simplify installation and maintenance.
Units are supplied complete with heavy gauge steel mounting
feet. Singlepak may be installed at any angle except vertically
blowing downwards and inverted horizontally.
QSP (Quiet Singlepak) unit cases have fire resistant acoustic
lining.
Fan is easily serviced after removal of the access panel. Each
assembly is electrically terminated in a connector box inside the
unit casing. Supply cable enters unit through cable grommet
provided on case side.
The motors have thermal overload protection and sealed for life
bearings. Forward curved centrifugal impellers are fitted.
A matching range of ancillaries including silencers, filters and
heaters is available.
Auto Transformer or Electronic speed controls are available. A
run on timer is avauilable giving automatic operation when
linked to a light switch or similar source.
Handling
Always handle the units carefully to avoid damage and distor-
tion. If mechanical aids are used to lift the unit, spreaders should
be employed and positioned so as to prevent the slings, webbing
etc. making contact with the casing.
Mounting
The method of mounting used is the total responsibility of the
installer.
Note that the unit is supplied with flange holes, see fig. 1. The
mounting feet (supplied) can be attached at any of these points
and the unit may be installed at any angle.
Removable
access panel
Removable
Connection
access panel
terminal box
3 /s. and are suitable for air

Installation

and Maintenance
Nuaire Limited
Western Industrial Estate, Caerphilly,
Mid Glamorgan. CF83 1XH United Kingdom
Telephone 029 2088 5911
Facsimile No. 029 2088 7033
Email: info@nuaire.co.uk
www.nuaire.co.uk
Contents
Introduction ............................................... 1
Installation ...............................................
Testing after Installation ............................ 1
Dimensions ................................................... 2
Motor Details ..............................................
Electrical Diagrams .................................
Maintenance .............................................
Replacement of parts ................................
Certification .................................................
Installation
Units should always be positioned with sufficient space to allow
removal of the access covers and subsequent removal of fan and
motor assemblies etc.
Note: when the unit is mounted horizontally the correct orien-
tation must be observed as indicated by direction labels on the
side of the unit case. Note Do not install the unit inverted.
Speed Controls and
Remote Fan Failure Indicator.
These controls may be mounted onto any firm surface using the
fixing holes provided in the base. Drill and plug the mounting
surface, positioning the control or indicator so that the cover
screws remain accessible. This is particularly important if a bat-
tery of controls is being installed. Fix the unit using suitable
woodscrews (not supplied). For wiring purposes, the control or
indicator cover has knock out slots for cable entry to suit up to
20mm conduit.

Testing after Installation

Ensure that the Singlepak unit and Control / Remote Fan
Failure Indicator, as relevant, are fitted.
Switch on and check that the Singlepak unit runs satisfactorily.
If a NuAire Transformer speed control has been installed check
that the correct speed variation is obtained.
For electronic type speed controls follow the installation set-up
procedure provided with the control.
Switch off. If a Run-on Timer (230 RTIM) is fitted, check that
the fan continues to run.
Time the run-on period, which is adjustable between 5 and 30
minutes nominal.
Timer controls are set at the works to the shortest period.
Leaflet No. 671024
NOVEMBER 2001
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