NuAire QUIETWINS QTI Instruction Manual

NuAire Limited
Western Industrial Estate
Caerphilly, United Kingdom CF83 1XH
Telephone: [phone]
Facsimile: 029 2088 7033
Email: [email protected]
www.nuaire.co.uk
Leaflet 670916
DECEMBER 2001
QTI QUIETWINS
Direct Drive Twinfans
single phase
Introduction
The NuAire QUIETWIN Twinfan Direct Drive range consists
of 4 basic designs with duties up to a maximum of 1.53m3/s.
The 4 models are coded as follows:
QTI (Internal Duct Mounted) in line unit.
QTE (External Duct Mounted) in line unit
QTR (Roof Mounted, end inlet) side discharge unit.
QTRB (Roof Mounted bottom inlet) side discharge unit.
QTI Quietwin
Units are rectangular in section and have circular rigid spigots at
each end (QTIC). Matching acoustic flexible connectors are
included and four matching mounting feet are alsosupplied.
The casing is manufactured from coated galvanised steel. Full
size access panels are fitted to the top and bottom faces. These
panels are fully detachable for inspection purposes. The internal
surfaces of the case (including the top and bottom panels) are
lined with a fire retardant acoustic lining material. The units
incorporate two independent motors with high efficiency, for-
ward curved centrifugal impellers running in metal scrolls. The
fans discharge into a common outlet chamber through a shutter
system that prevents ‘blowback through the standby fan.
The motors are manufactured to BS 5000 and are suitable for
single phase supply. Airflow and failure monitors are standard as
is Class B insulation. Suitable for operation in ambient tempera-
tures up to 40oC.
Controls
The fans are designed to be used with SMART (S) controls .
Installation
IMPORTANT
The installation must be carried out by qualified personnel
in accordance with the appropriate authority and con-
forming to all statutory and governing regulations eg. IEE,
COHSE etc.
QTI units are supplied for installation into In-Line ductwork
(internal) applications. The mounting feet on the QTI unit
can be employed in surface or suspended applications.
ISOLATION
Before commencing work ensure the electrical supply is
disconnected.
Installation Ancillaries
Anti vibration mountings and matching silencers are available
Units should always be positioned with sufficient space to
allow removal of the access covers and subsequent
removal of fan and motor assemblies etc.
Quietwin QTI units can be mounted in any attitude
except vertical with the outlet facing down, or inverted
i.e. upside down as these attitudes the shutters will not
operate satisfactorily.
Ductwork connections must be airtight to prevent loss of per-
formance. The method of mounting used is the total responsi-
bility of the installer. The QTI unit has an external case side
mounted control module / terminal box and is supplied ready
for connection into the electrical supply.
Rigid Mounting
Note, the QTI unit and silencer cases have captive M8 nuts
which can be used after removing the M8 screws plugging
them.
On Resilient Mountings
Suspension rods / fixing screws are not supplied. Drill suitable
holes in the support structure to receive the particular sizes.
Note that the large round washers included in the resilient
mounting kits are for fitting above or below the resilient
mounting as required to safeguard the installation against
break-up of, or damage to, a mounting. In the event of a
resilient mounting failure the washer will support the weight
of the unit.
Suspended from ceiling
Large washers should be fitted BELOW the resilient mounts.
Installation
and Maintenance
Contents Page
Introduction 1
Installation 1
Dimensions 2
Electrical information 2
AV mountings 3
Silencers 3
Controls wiring connections 4
Commissioning the fans 5
Maintenance 8
Certification 9
Warranty 12
1
Fig. 1. General view of a typical QTI unit.
Unit must NOT be
installed with the outlet
facing downward
Unit must NOT be
installed inverted
(upside down)
TOP

QTI = Quietwin, duct mounted, internal use.
C = Circular spigots with acoustic f lexible connectors.
1 = Fan performance curve number (catalogue).
S = Smart integral fan control.
QTI C 1 S = Quietwin, internal duct mounted, circular spigots,
acoustic flexible connectors and Smart integral control.
Installation and Maintenance QUIETWIN DIRECT DRIVE TWINFANS
2
Table 2.
Table 1
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.
ISOLATION
Note that the unit must be provided with a means of iso-
lation (by others) for maintenance purposes etc.
A suitable isolator can be supplied by NuAire on request
as a separate item.
C
B
A
D
Control
module
Code: QTIC
circular spigots
Matching acoustic, flexible
connectors included 4 Mounting feet included
QTIC Weight
Unit A B C D dia. (kg)
QTI 1 763 572 210 150 20
QTI 2 778 787 262 200 30
QTI 3 913 787 340 200 43
QTI 4 1063 1047 352 250 57
QTI 5 1193 1047 423 400 69
QTI 6 1193 1047 423 400 79
QTI 7 1195 1174 575 500 160
QTI 8 1195 1174 575 500 154
Dimensions
DIMENSIONS (mm)
Coding
Electrical
1 Phase (230V) ONLY
(nominal)
Unit Speed Input flc sc
Code rpm Power (kW) (amps) (amps)
QTI 1 2040 0.086 0.65 1.3
QTI 2 1320 0.104 0.56 1.5
QTI 3 1260 0.230 1.60 4.5
QTI 4 1140 0.370 1.60 4.7
QTI 5 1110 0.660 2.95 10
QTI 6 1272 1.110 4.84 18
QTI 7 960 1.406 6.30 50
QTI 8 960 1.620 7.30 50
Electrical Details (See table 2).
Because the run and start currents depend upon the duty and
associated ductwork of an individual unit, the values quoted
in the table are nominal.
Run currents will be exceeded if the unit is operated with its
cover removed. It is therefore recommended that the unit is
not run for prolonged periods in this condition.
Electrical Note
(See electrical wiring diagrams)
If a NuAire control has been supplied, wire the control to the
Fan unit and also to the mains supply.
Refer to the wiring section at the rear of this leaflet.
Testing after Installation
Ensure that the Fan unit and Control and particular control
ancillaries if specified eg PIR, Run/Fail indicators, timeclock
etc. are fitted.
Switch on and check that the fan unit runs satisfactorily.
Using your chosen control, switch over to the standby fan by
means of the control's fan selection switch.
Check that the change-over occurs.
Switch off. If a Run-on Timer is fitted, check that the fan
continues to run.
Time the run-on period, which is adjustable between 5 and
60 minutes nominal.
Timer controls are set at the works to the shortest period.
For speed controls follow the installation set-up procedure
provided with the control.
Fig. 2.
Motor Electrical Information

Anti-Vibration Mountings for QTI unit
CODES: NAV* (typical)
The resilient mounts supplied for use with the Quietwin range
are suitable for use in floor mounted or hanging type applications.
Note:
QTE and QTR units are curb (upstand) mounted, anti vibration
treatment by others (if required).
Matching Silencer for QTI units
The QTI unit has a matching silencer available as an ancillary
item from NuAire. Code: QTI*SIL. (*would be the unit
size). The QTI silencers are connected using flexible con-
nectors or fast clamps available as ancillaries
Details of the QTI Silencer are shown in fig 3 below.
A.V. Selection
Unit
Code only
(matched silencers)
QTI 1 NAV1
QTI 2 NAV1
QTI 3 NAV2
QTI 4 NAV2
QTI 5 NAV2
QTI 6 NAV2
QTI 7 NAV2
QTI 8 NAV2
A.V. dimensions
Code A B
NAV1 30 50
NAV2 40 75
Silencer Attenuation
Dynamic attenuation of silencer in dB
Octave Band Mid frequency Hz
Unit
code 125 250 500 1k 2k 4k 8k
QTI 1 SIL 8191420262316
QTI 2 SIL 7151518232218
QTI 3 SIL 6101515212020
QTI 4 SIL 14 812111416
QTI 5 SIL 261116 15 19 20
QTI 6 SIL 261116 15 19 20
QTI 7 SIL 13 610101415
QTI 8 SIL 11 5 8 81214
A
B
C
D dia
Installation and Maintenance QUIETWIN DIRECT DRIVE TWINFANS
3
Table 4.
Fig. 5. QTI Silencer
Fig. 4. A.V. mounting
Table 3b.
Table 5.
Table 3a.
Dimensions (mm) & Selection Unit
Unit Silencer weight
code codeABCD dia (kg)
QTI 1 QT1 SIL 613 420 210 150 15
QTI 2 QT2 SIL 613 480 262 200 18
QTI 3 QT3 SIL 613 480 340 200 22
QTI 4 QT4 SIL 613 764 352 250 31
QTI 5 QT5 SIL 613 764 423 400 38
QTI 6 QT6 SIL 613 764 423 400 38
QTI 7 QT7 SIL 613 965 575 500 48
QTI 8 QT8 SIL 613 965 575 500 48
A
B

Smart Control wiring to Twinfan
Figure 6 shows the inside of the case mounted Smart Control Module.
All sensors and user controls / timeclock etc are ‘plugged in’ to the
control module circuit board. Terminal connection strip is located on
the right of the board. Note the mains connection terminals.
INPUT 4 INPUT 3 INPUT 2 INPUT 1
RD
YL
GN
BL
RD
YL
GN
BL
N L OP CL RET OP CL RET SL FAIL
MAINS DAMPER 1 DAMPER 2 SW FAIL
LIVE SW
Volt Free
Contacts for
fail indication
240v live from light switch
(fan operates when live)
240v live to close
240v live to open
240v live to close
240v live to open
240v
mains
supply
Remote fail
sensor input
Sensor input
Sensor input
Master on/off
control input
Step button
Fan 1 Fan 2 OFF AUTO
Speed
Run on
NOT USED
Fuse (control)
Fuse (fans)
Fuse (dampers)
DIL switches
(used to tailor
smart twin
operation)
Damper switch conn. Remove links when using dampers fitted with limit switches
Optional
Sensors &
Timeclocks
etc. plug in
here
Step Button manually
steps through functions
Speed
Adjustment Run on
Adjustment
(see commissioning procedure)
230v Mains
to Twinfan
Smart Control
module
Installation and Maintenance QUIETWIN DIRECT DRIVE TWINFANS
4
Connecting unit to the mains 230v supply
Remove the control module cover (4 nylon fixings) Unscrew and
remove the aluminium terminal cover plate, Feed the mains cable
through the rubber grommet and connect your 230v supply to
the terminals marked ‘MAINS’ (See fig. 6a & 6b).
Timeclock
ON/OFF
Code:
ST-TC
Manual
User
Control
ON/OFF
Code: ST-MAN
MK Adaptor plate
Code: MK-ADAPTOR
P.I.R.
Occupancy
Sensor
Code: ST-PIR
Up to four devices
can directly "plug in"
to the Smart Control
Humidity
Sensor
Code:
ST-HUM
Sensor
Guard
Junction
Box
Code: ST-JB
Audio / Visual
Fail Indicator
Code: ST-AVI
To up to six
additional sensors
(if required)
Smart Twinfan
(typical)
1245
8
3
7
6
MK Box
(not supplied)
Control
230v mains supply
9
COMPREHENSIVE
SMART SYSTEM
Fig. 7. Quietwin system showing additional options
Fig. 6. Control module
connection details
Fig. 6a. Control module location
Options
List of available sensors, user controls and
ancillaries for “S" option users with a refer-
ence to corresponding information leaflets
PIR Occupancy sensor, code: ST-PIR
(Leaflet No: 670864)
Humidity sensor, code:ST-HUM
(Leaflet No: 670865)
Audio / visual fail indicator, code:ST-AVI
(Leaflet No: 670877)
Timeclock on / off, code: ST-TC
(Leaflet No: 670866)
Manual user control, code ST-MAN
(Leaflet No: refer to Nuaire)
Junction Box, code: ST-JB
(Leaflet No: refer to Nuaire)
Sensor guard, code: refer to Nuaire
(Leaflet No: refer to Nuaire)
MK Adaptor plate, code:: MK ADAPTOR
(Leaflet No: refer to Nuaire)
BMS Interface, code:ST-BMS
(Leaflet No: 6708697)
Airflow direction box, code: ST-ADB
(Leaflet No: refer to Nuaire)
Low voltage comms cable 10m length
(Leaflet No: refer to Nuaire)
1
2
3
4
5
6
7
8
9
10
11
QTI Direct Drive, Smart (S) control

Installation and Maintenance QUIETWIN DIRECT DRIVE TWINFANS
5
Typical QTI graph (Size 1 unit shown)
Commissioning Procedure (see fig. 6).
1. Switch on the supply to the QTI Quietwin fan.
2. Locate the control module panel Care must be taken if
the module has any covering panels removed as live
230v incoming supply terminals may be exposed.
Note covers MUST be properly replaced when commission
ing has been completed.
3. Wait approximately 60 seconds for the system to complete
its self test’
4. Press the step sequencing button several times until only
the ‘FAN 1’ light is illuminated and the ‘AUTO’ light is
off. (See detail of control panel Fig. 6).
5. Connect a manometer across the tappings provided on the
outside of the fan casing. Reading the manometer and using
the graph, determine the airflow. The fan is factory set at full
speed. Using the rotary graduated control,reduce the speed
to the desired setting (may require a screwdriver).
NOTE: allow 30 seconds for the fan to reach the set speed.
6. Set the Run on timer control. (Adjustable 5-60 min).
(See detail of control panel Fig. 6).
7. Press the step button through the sequence until ‘AUTO’
light shows.
COMMISSIONING IS NOW COMPLETE.
Using the graphs
The graph is designed to assist you in establishing an AIR VOL-
UME FLOW RATE for your fan installation.
The curves shown indicate performance at 100%, 75% and 50%.
Assuming that the ventilation system is installed and the fan is
connected to all ductwork. Connect a manometer across the tap-
pings provided on the outside of the fan unit casing.
The fan is factory set for full speed. With the fan operating at this
full speed (100%) take a pressure reading in Pa from the
manometer. Refer to the relevant graph for your size of unit and
with your Pa figure, read across the graph to where the line
intersects the 100% curve.
Drop a line vertically down from this point and the air volume
flow is indicated on the base line of the graph.
QTI Quietwin graphs are shown on the following pages
Using the Step button (see fig 6).
Refer to the label on the controls inside cover for more guidance.
Pressing the step button will sequence through the options and
change the modes as follows:
1. FAN 1 in manual mode (used for commissioning)
2. FAN 2 in manual mode (used for commissioning)
3. SYSTEM OFF
4. SYSTEM IN AUTOMATIC (normal selection)
To clear a fail, press the STEP button until the fail has cleared.
IMPORTANT After commissioning, press the STEP but-
ton through until AUTO is illuminated.
System is now in automatic mode.
20
40
60
80
100
120
140
160
180
Pressure across manometer tappings (Pa)
Volume flow (l/s)
Speed
100%
75%
50%
020304010 50 60
Volume
Flow Rate
Pressure
Reading
Control Module Connections /Inputs and
their uses (see fig 6)
SENSOR INPUT 1:
This is the Master on/off control input and is usually ‘linked out’
with a special plug unless:
A Timeclock can be connected into this input e.g. ST-TC
During ON times the unit is allowed to operate.
During OFF times the unit is off- zero duty.
Note: The ST-TC Timeclock must always be plugged into the fan
mounted control module NOT into a ST-JB junction box.
SENSOR INPUTS 2, 3 & 4
Any sensor can be connected to these inputs to allow activation of
the unit. If any of these inputs is activated, the unit will run at the
maximum set duty. These sensors include ST-PIR, ST-HUM,
ST-TEMP.
Note: Additional sensors may be added by using an ST-JB Junction Box.
SWITCH LIVE terminals
This acts just like the sensor inputs 2,3,4. If 230v ac is detected
on the SW - Live terminals, the unit will run at the max. set duty
DAMPER terminals (2 sets)
When the fan is running at full duty, both these damper connec-
tions will be activated. i.e. power will be available on the OP ter-
minals of the damper connections. The fan will not go to full
duty until the RET terminals have 230v ac (Limit Switch).
FAILURE RELAY
This relay is normally closed when there are no faults. When
faults occur this relay will open and break the circuit. This
method of operation allows all types of failure to be detected for
example ‘Power failed’, ‘Fan/s fail.
This connection is a volt free switch. it can handle power up to
5A (230v) and is fused for protection.
NO FAULT: The volt free switch is closed i.e. the two
terminals are connected.
FAN FAULT: The volt free switch is opened. i.e. the two
terminals are disconnected.

Installation and Maintenance QUIETWIN DIRECT DRIVE TWINFANS
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
30% TRICKLE SPEED
40% TRICKLE SPEED
50% TRICKLE SPEED
NO TRICKLE SPEED
AIRFLOW DIRECTION
BOX FITTED
Smart Twinfan DIL switch settings
(see fig 6).
The Smart Twins operation can be individually tailored to suit
your own particular application.
A label is attached to the inside of the control module cover
detailing the various switch functions.
Refer also to switch settings shown opposite.
DEFAULT MODE:
The fan runs in trickle mode until the toilet is occupied
Switch 1 & Switch 2 ..........Trickle mode and rate
Switch 3 .............................2 way Damper Box fitted
ON = Damper Box fitted (split duty system)
OFF = No Damper Box fitted
Commissioning Graphs QTI Quietwins
QTI Quietwins Size 1
20
40
60
80
100
120
140
160
180
Pressure across manometer tappings (Pa)
Volume flow (l/s)
Speed
100
%
75%
50%
020304010 50 60
Volume
Flow Rate
Pressure
Reading
QTI Quietwins Size 2
20
40
60
80
100
120
140
Pressure across manometer tappings (Pa)
Volume flow (l/s)
Speed
100%
75%
50%
040608020 100 120 140
Volume
Flow Rate
Pressure
Reading
6
To be used in conjunction with the commissioning procedure
as detailed on page 5. The QTI Quietwin is offered in 8 perfor-
mance curve sizes numbered 1-8. The eight graphs are shown.
Split duty via Damper Box.
(AIRFLOW DIRECTION BOX)
A typical application of the damper is illustrated in fig 7.
CONTROL MODULE CONNECTIONS
Sensor/s are connected to sensor input 2
When the sensor is activated, the duty fan will run at 50% of the
max. set duty and damper relay 1 will be activated.
Sensor/s are connected to sensor input 3
When the sensor is activated, the duty fan will run at 50%
of the max. set duty and damper relay 2 will be activated. If both
sensor input 2 and sensor input 3 are activated together, the fan
will run on the maximum set duty.
Also, if sensor input 4 (or SL) is activated when a damper box /
split duty system is being used, both the damper relays will
operate and the fan will run at full duty.
Wiring Connections from QTI to optional
Airflow Direction Box. Code: ST-ADB
L N OP CL RET
Mains Damper 1
OP CL RET
Damper 2
Switched
Live Fail Switch
SL FAIL FAILL N OP CL RET
Mains
230v
mains
supply
Damper 1
OP CL RET
Damper 2
Switched
Live Fail Switch
SL FAIL FAIL

AIRFLOW DIRECTION BOX
Connection box on damper
L N E
Damper 1 - OP Damper 2 - OP
Smart 'S' CONTROL MODULE at Quietwin fan
Fig 8 Airflow direction Box terminal connections

Installation and Maintenance QUIETWIN DIRECT DRIVE TWINFANS
QTI Quietwins Size 3 QTI Quietwins Size 4
7
50
100
150
200
Pressure across manometer tappings (Pa)
Volume flow (l/s)
Speed
100%
75%
50%
0 100 15050 200 250
Volume
Flow Rate
Pressure
Reading
100
50
200
150
250
300
350
Pressure across manometer tappings (Pa)
Volume flow (m3/s)
Speed
100%
75%
50%
0 0.2 0.30.1 0.4
Volume
Flow Rate
Pressure
Reading
QTI Quietwins Size 5 QTI Quietwins Size 6
150
50
100
250
300
200
350
400
450
Pressure across manometer tappings (Pa)
Volume flow (m3/s)
Speed
100%
75%
50%
0 0.4 0.5 0.60.1 0.2 0.3 0.7
Volume
Flow Rate
Pressure
Reading
150
50
100
250
300
200
350
400
Pressure across manometer tappings (Pa)
Volume flow (m3/s)
Speed
100%
75%
50%
0 0.4 0.5 0.60.1 0.2 0.3 0.7 0.8
Pressure
Reading
Volume
Flow Rate
QTI Quietwins Size 7 QTI Quietwins Size 8
150
50
100
250
300
200
350
Pressure across manometer tappings (Pa)
Volume flow (m3/s)
Speed
100%
75%
50%
0 0.8 1.0 1.20.2 0.4 0.6 1.4
Pressure
Reading
Volume
Flow Rate
150
50
100
250
300
200
350
Pressure across manometer tappings (Pa)
Volume flow (m3/s)
Speed
100%
75%
50%
0 0.8 1.0 1.20.2 0.4 0.6 1.4
Pressure
Reading
Volume
Flow Rate

Installation and Maintenance QUIETWIN DIRECT DRIVE TWINFANS
8
Replacement of Parts
The only item of the fan units unit likely to require replace-
ment are the fan/motor assemblies due to a failed motor or
damaged impeller. In either eventuality the complete fan/
motor assembly must be removed from the unit case.
NOTE:
BEFORE COMMENCING WORK, ELECTRICALLY
ISOLATE THE FAN UNIT AND / OR THE
ASSOCIATED NUAIRE CONTROL, IF FITTED,
FROM THE MAINS SUPPLY.
Remove the access cover. Disconnect the incoming wiring
from the connection box (located on the fan scroll) on the
particular fan/motor assembly to be removed. Support the
weight of the fan/motor assembly and remove the mounting
screws and washers. Lift the assembly out of the case.
After replacing the faulty item, refit the fan/motor assembly
and reconnect the incoming wiring to the fan mounted con-
nection box. Replace the access cover.
Schedule of Parts
When ordering spares please quote the serial number of the
unit together with the part number. If the part number is not
known please give a full description of the part required. The
serial number will be found on the identification plate
attached to the unit casing
Controls Application Service (CAS)
A team of Engineers and technicians is available to provide
pre and post order support.
We are on hand to provide help and advice from the most
basic use of any NuAire equipment to the more complex
applications, maximising on the versatility of our control
products.
Telephone: [phone]
Facsimile: 029 2085 8586
Maintenance (General)
ISOLATION
BEFORE COMMENCING WORK MAKE SURE
THAT THE UNIT AND NUAIRE CONTROL, IF
FITTED, ARE ELECTRICALLY ISOLATED FROM
THE MAINS SUPPLY.
Maintenance Intervals
The first maintenance should be carried out three months
after commissioning and thereafter at twelve monthly inter-
vals. These intervals may need to be shortened if the unit is
operating in adverse environmental conditions, or in heavily
polluted air. NOTE: Failure to maintain the unit as recom-
mended will invalidate the warranty.
Lubrication
Motors are fitted with sealed for life bearings and therefore
require no further lubrication.
General Cleaning and Inspection
Clean and inspect the exterior of the fan unit and associated
controls etc.
Remove the access panel from the fan unit. Inspect and, if
necessary, clean the fan and motor assemblies and the interi-
or of the case. If the unit is heavily soiled it may be more
convenient to remove the fan / motor assemblies.
Check that the shutters are free to move smoothly and that
they seal the appropriate fan outlet effectively.
Clean and inspect each fan and motor assembly as follows;
taking care not to damage, distort or disturb the balance of
the impeller.
a) Lightly brush away dirt and dust, paying particular
attention to any build up at the motor ventilating slots.
If necessary, carefully remove with a blade or scraper.
b) Stubborn dirt at the impeller may be carefully removed
with a stiff nylon brush.
c) Check all parts for security and general condition.
Check that the impeller rotates freely.
Refit the assemblies to the unit (see Replacement of Parts)
then replace the access covers
If NuAire controls and or remote indicators are fitted,
remove the covers and carefully clean out the interiors as
necessary. Check for damage.
Check security of components. Refit the access covers.
Service
As a manufacturer NuAire provides you with factory trained
Service Engineers.
Our Engineers are supported by a comprehensive range of
spare parts 'off the shelf'.
If you are an industrial or commercial user, you may be
interested in details of NuAire's regular maintenance Service
Contracts. This is a worthwhile service that helps you get
the most from our products.
Our Service Department will be happy to give you more
information.
Please telephone: [phone]
Table 6 Spares listing
Unit
code
Blower assembly
c/w motor.
QTI 1
QTI 2
QTI 3
QTI 4
QTI 5
QTI 6
QTI 7
QTI 8
772819
772820
772821
772822
772823
772824
772825
772825

9
NuAire Limited,
Western Industrial Estate,
Caerphilly, United Kingdom.
CF83 1XH.
Telephone: [phone]
Fax: [phone]
Email: info @ nuaire. co. uk
www.nuaire.co.uk
AUGUST 2001
NuAire Limited,
Western Industrial Estate,
Caerphilly, United Kingdom.
CF83 1XH.
Telephone: [phone]
Fax: [phone]
Email: info @ nuaire. co. uk
www.nuaire.co.uk
AUGUST 2001
We declare that the machinery named below is intended to be
assembled with other components to constitute a system of machinery.
The machinery shall not be put into service until the system has
been declared to be in conformity with the provisions of the
EC Council Machinery Directive.
Designation of machinery :- QTI QUIETWIN DIRECT DRIVE
Machinery Types :- QTI
Relevant EC Council Directives :- 98/37/EC (Machinery Directive)
Applied Harmonised Standards :- EN292-1, EN292-2, EN294, EN29001
Applied National Standards :- BS848 Parts One, Two and Five
Signature of manufacture representatives :-
Name: Position: Date:
1) C. Biggs Technical Director 3.8.01
2) W. Glover Manufacturing Director 3.8.01
We declare that the machine named below
conforms to the requirements of EC Council Directives
relating to Electromagnetic Compatibility and
Safety of Electrical Equipment.
Designation of machinery :- QTI QUIETWIN DIRECT DRIVE
Machinery Types :- QTI
Relevant EC Council Directives :- 89/336/EEC, 92/31/EEC (EMC)
73/23/EEC, 93/68/EEC (Low Voltage Directive)
Applied Harmonised Standards :- EN55014-1, EN55014-2, EN60204-1
EN60335-2-80
Basis of Self Attestation :- Quality Assurance to BS EN ISO 9001
BSI Registered Firm Certificate No. FM 149
Signature of manufacture representatives :-
Name: Position: Date:
1) C. Biggs Technical Director 3. 8. 01
2) W. Glover Manufacturing Director 3. 8. 01
DECLARATION OF INCORPORATION & INFORMATION FOR
SAFE INSTALLATION, OPERATION & MAINTENANCE
DECLARATION
OF CONFORMITY

INFORMATION FOR SAFE INSTALLATION, OPERATION AND
MAINTENANCE OF NUAIRE VENTILATION EQUIPMENT
To comply with EC Council Directives 98/37/EC Machinery Directive
To be read in conjunction with the relevant Product Documentation (see 2.1)
1.0 GENERAL
1.1 The equipment referred to in this Declaration of Incorporation is supplied by NuAire to be assembled into a ventilation
system which may or may not include additional components. The entire system must be considered for safety purposes and it
is the responsibility of the installer to ensure that all of the equipment is installed in compliance with the manufacturers
recommendations and with due regard to current legislation and codes of practice.
2.0 INFORMATION SUPPLIED WITH THE EQUIPMENT
2.1 Each item of equipment is supplied with a set of documentation which provides the information required for safe installation
and maintenance of the equipment. This may be in the form of a Data sheet and/or Installation and Maintenance instruction.
2.2 Each unit has a rating plate attached to its outer casing. The rating plate provides essential data relating to the equipment such
as serial number, unit code and electrical data. Any further data that may be required will be found in the documentation.
If any item is unclear or more information is required, please contact NuAire.
2.3 Where warning labels or notices are attached to the unit the instructions given must be adhered to.
3.0 TRANSPORTATION, HANDLING AND STORAGE
3.1 Care must be taken at all times to prevent damage to the equipment. Note in particular that shock to the unit may result in
the balance of the impeller being affected.
3.2 When handling the equipment, care should be taken with corners and edges and that the weight distribution within the unit is
considered. Lifting gear such as slings or ropes must be arranged so as not to bear on the casing.
3.3 Equipment stored on site prior to installation should be protected from the weather and steps taken to prevent ingress of
contaminants.
4.0 OPERATIONAL LIMITS
4.1 It is important that the specified operational limits for the equipment are adhered to e.g. operational air temperature, air borne
contaminants and unit orientation.
4.2 Where installation accessories are supplied with the specified equipment eg. wall mounting brackets. They are to be used to
support the equipment only. Other system components must have separate provision for support.
4.3 Flanges and connection spigots are provided for the purpose of joining to ductwork systems. They must not be used to
support the ductwork.
5.0 INSTALLATION REQUIREMENTS
In addition to the particular requirements given for the individual product, the following general requirements should be noted.
5.1 Where access to any part of equipment which moves, or can become electrically live are not prevented by the equipment
panels or by fixed installation detail (eg ducting), then guarding to the appropriate standard must be fitted.
5.2 The electrical installation of the equipment must comply with the requirements of the relevant local electrical safety
regulations.
6.0 COMMISSIONING REQUIREMENTS
6.1 General pre-commissioning checks relevant to safe operation consist of the following -
Ensure that no foreign bodies are present within the fan or casing
Check electrical safety. e.g. Insulation and earthing.
Check guarding of system.
Check operation of Isolators/Controls.
Check fastenings for security.
6.2 Other commissioning requirements are given in the relevant product documentation.
7.0 OPERATIONAL REQUIREMENTS
7.1 Equipment access panels must be in place at all times during operation of the unit, and must be secured with the original
fastenings.
7.2 If failure of the equipment occurs or is suspected then it should be taken out of service until a competent person can effect
repair or examination. (Note that certain ranges of equipment are designed to detect and compensate for fan failure).
8.0 MAINTENANCE REQUIREMENTS
8.1 Specific maintenance requirements are given in the relevant product documentation.
8.2 It is important that the correct tools are used for the various tasks required.
8.3 If the access panels are to be removed for any reason the electrical supply to the unit must be isolated.
8.4 A minium period of two minutes should be allowed after electrical disconnection before access panels are removed. This will
allow the impeller to come to rest.
NB:Care should still be taken however since airflow generated at some other point in the system can cause the impeller to “windmill” even
when power is not present.
8.5 Care should be taken when removing and storing access panels in windy conditions.

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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.
Western Industrial Estate,
Caerphilly, CF83 1XH
United Kingdom.
Telephone: [phone]
Facsimile: 029 2088 7033,
Email: [email protected]
www.nuaire.co.uk
Leaflet No. 670916
Year
Warranty
Year
Warranty
3 Year Warranty (UK only)
The 3 year warranty starts from the
date of delivery and includes parts
and labour for the first year. The
labour element is subject to full,
free and safe access to the equipment
as recommended by the CDM
regulations. The remaining 2 years
covers replacement parts only.
Installation & Maintenance of the equipment must be as
directed in the NuAire Installation & Maintenance leaflet.
GP170
Installation and Maintenance QUIETWIN DIRECT DRIVE TWINFANS