Nuaire Group CYFAN Series Instruction Manual

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CYFAN EXTRACT FANS
(E
The EMC Directive
2004/108/EC
230V/24V DC SELV Surface and
Semi-Recessed Mounted Domestic Fans
The LowVoltage
directive
2006/95/EC
INSTALLATION AND MAINTENANCE
IPX4
The Nuaire CYFAN centrifugal extract fan is a major advancement
and has been designed to meet the flow rates for all wet room
applications such as the bathroom, kitchen, utility and WC etc.
The unit discharges air through a 1 OOmm or 125mm dia. spigot which
for surface and semi-recessed mounted units exits at the rear of the
unit. The subsidiary spigot kit allows the fan to extract air through the
side of the fan via a SOmm dia. spigot.
The motor is 24V brushless DC. Bearings are sealed, self-lubricating
ball type with integral locked rotor protection.
Units are supplied with a separate transformer enclosure if fans are
required for SELV usage.
1.1 Unit Operation includes 230V to 24V
conversion, continuous or intermittent
The fan can be converted to operate as a 24V DC SELV for zone 1
and 2 applications. The fan has the option to select continuous or
intermittent operation up to a installed performance of 60 l/s.
1.2 Mounting options
The CYFAN range can be:
Surface Mounted,
Semi-Recessed Mounted, Using the optional extra Semi-Recessed
mounting frame kit suitable for 100mm and 125mm dia duct, consists of
mounting plate and mounting flange.
Window Mounted, using the optional kit.
Surface mounted with side spigot, using the optional kit
(see accessories and kits for part numbers).
1.3 Accessories & kits available for CYFAN:
•Wall mounting kit
Product Code Colour option
CYFAN-WALLKIT-WH
White
CYFAN-WALLKIT-BR
Brown
CYFAN-WALLKIT-COT
Cotwolds
CYFAN-WALLKIT-TC
Terracotta
• Optional window mounting kit (Part number: CYFAN-WKlT).
• Optional subsidiary spigot kit for ventilation of adjacent
bathroom/separate toilet (Part number: CYFAN-DKlT).
• Semi-recessed mounting kit (Part number: CYFAN-RKlT).
• Optional filter available (Part number: 7702017).
1.4 What comes in the box?
The following components are included.
Fan Body Fixing Kit
•
Fan Scroll including Motor •8 off No6 x 3 /4 inch Pozi
and Removable Impeller Pan Screw
•Control I
PSU PCB, complete
•6
off No6 x 1/z inch Pozi
with Boost Pull Switch Pan Screws
•
PCB Cover •2 off No8 x 3 /s inch Pozi
•Front Grille Pan Screws
•Front Cover •3
off Cable Clamps
•
125mm Spigot (fitted) •1
off Shutter Spring
•Additional
100mm dia. Spigot •3 off Off nylon spacers
•2 off
100mm Back Draught Spigot
•2 off
125mm Back Draught Spigot
•24V Transformer Enclosure
If
1
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111
1' ''j''' 1
111
:
111
1'' l'' I''' I I
Index
Section 2 - Unit Preparation Page 3
• Spigot Change
• Fitting back draught shutter
• 230V to 24V conversion
• All Wiring Diagrams
Section 3 - Fitting the Product Page 6
Surface Mounting - page 6
• Required Tools
• Procedure
Semi Recessed
Mounting -Page 7
• Required Tools
• Procedure
Window Mounting -Page 8
• Required Tools
• Procedure
Surface Mounting with
side spigot -Page 10
• Required Tools
• Procedure
Section 4 - Setting the Product to work Page 12
• Default settings
• Part F Flow rates
• Air flow adjustment (Inc Controls label)
• Continuous and Intermittent switch
• Humidity switch
• Run on timer
Section 5 - Terms and Conditions Page 12
• Warranty
• Service enquiries
• Technical Support contact number
Nuaire Limited Western Industrial Estate Caerphilly United Kingdom CF83 1NA
T: 029 2085 8400 F: 029 2085 8444 E: [email protected] W: www.nuaire.co.uk 27. 05. 14. Leaflet Number 671629
RYD00094076_0001

CYFAN EXTRACT FANS INSTALLATION AND MAINTENANCE
1.5 Fan Unit Dimensions (mm)
Front view
207
Top view
179
II I I I II
·_ I I I I I
I-~
"--- -----"'
00
0
N
r--
~
1.6 Optional window Kit Dimensions (mm)
x
N
0
N
I
'
'
'
'
'
'
'
'
'
'
48.0
--
-- 150.0
Window thickness
2
Back view
Side view
_/I
-
:; \
N
~
-
'7
)i~
'
00
0
N
x
r--
0
N
-
)I
27. 05. 14. Leaflet Number 671629
RYD00094076_0002

CYFAN EXTRACT FANS INSTALLATION AND MAINTENANCE
Fan Cover. Fan Grille.
Fan Scroll. Fan Casing.
Impeller.
2.1 How to change the spigot size
The CYFAN is fitted with a 125mm dia. spigot, if a 100mm dia.
spigot is required follow the following steps.
• Remove the front cover and grille
• Remove fan scroll from fan casing (Do not disconnect wiring)
• Using a PH2 screw head driver remove 4 off No8 1 /4 inch
screws
• Remove 125mm spigot
• Place 100mm dia. spigot into position (as shown in fig 3)
• Replace 4 off No8 1 /4 inch screws
• Replace fan scroll on fan casing
• Replace front cover and grille
Fig 1. Screws to be removed and refitted during spigot change.
[oooo;© =ooo J
0 0 0 0
3
2.2 Fitting back draught shutters
to the spigot
The CYFAN kit comes complete with back draught shutters for
100mm and 125mm spigots, however these are not fitted as
standard and should not be used when using your CYFAN in
continuous operation.
It is also recommended that you should not fit back draught shutters
if your intermittent operation duties are below 15 l/s and for
installations other than directly through the wall application to avoid
failure of the shutters opening.
Please follow these simple steps to fit your back draught shutters if
required: It is advised to fit the shutters before installing the fan unit.
• Collect all required parts
• 125mm shutters (2 off 41285) or 100mm shutters (2 off 41286)
• Spring (Part of Fixing Kit 770173)
Fit 1 shutter with the part number facing in, by placing the bottom
pin into the bottom hole, slightly deflect the shutter and then fit the
top pin into the top hole. Repeat this process for the other shutter.
Fig 2. Fit spring to the bottom of the two shutters.
2.3 Conversion from 230V to 24V
1. Unpack the fan unit, components and transformer. Ensure that
all parts listed on page 1 are present. If not please contact the
manufacturer for replacement I missing parts.
2. Place the front cover and inlet grille to one side.
3. Remove the PCB cover by removing 2 off No6 x 1/z inch screws.
4. Partially remove the PCB assembly from the fan casing by
placing a finger tip behind the dip switches and pulling the PCB
away from the fan casing. (see fig 3).
Fig 3. Removal of PCB cover from casing.
PCB assembly PCB cover
Continued on the following page.
27. 05. 14. Leaflet Number 671629
RYD00094076_0003

CYFAN EXTRACT FANS INSTALLATION AND MAINTENANCE
2.3 Conversion from 230V to 24V cont.
5. Separate section 2 of the PCB from section 1 by cutting the tabs
in the positions shown. (see fig 4). Replace section 2 of the PCB
into the fan unit.
Fig 4. Separate section 1 of the PCB (Power supply 230V/24V) from
section 2 (Control PCB 24V DC) by cutting the tabs in the positions
shown with the dotted circles.
Motor
Section 2 (Control PCB 24V DC)
2.4 Installation of Transformer Enclosure
(24 Volt units only)
The enclosure containing the transformer is intended to be mounted
out of sight (e.g. in a loft, cupboard, under floorboards etc.).
However, if this is not possible the transformer enclosure should be
mounted as close to the ceiling, or as far from the "splash zone" as
possible (see below for definition of the splash zone).
As can be seen from the table of wiring sizes, it is advisable to place
the enclosure as close to the fan as possible to reduce the costs of
wiring and assist in installation.
'Splash zone'
The 'Splash Zone' can be considered to be an area within a bathroom
or shower room where a person using the bath or shower can
effectively reach.
An arms reach is defined as 0.6 metres from the edge of the bath or
shower up to a height of 2.25 metres.
2.5 Procedure for fitting the Transformer
1. Remove the transformer cover.
2. Position the transformer base enclosure on mounting surface and
route cables through knockouts. Mark the fixing points on the
D mounting surface. Secure using suitable fixings (by others).
SL
0
24V
D
oooD 0
24V SELV
,.
.
~
,•
I
24VS~LV <ID
input ©
D <ID
. .....,. ____ __,
~--
output @) ® C=:J
e----t----Section 1
~--------------~
3. B'efore fitting section 1 of the PCB into the transformer
ehclosure connect wiring as shown in (24V wiring options).
Fit section 1 of the PCB by first slotting the bottom edge
(see fig 6) into the fixing clip inside the base of the transformer
enclosure then press on the transformer and terminal block until
24V the PCB clicks into place. Complete by replacing the transformer
0 cover using
the screws provided.
SL
4. Keep vents clear of obstruction.
Complete the installation of components by securing the PCB
cover on the fan.
Note: No earth is to be connected between transformer and fan.
(Power supply
Fig 6. Place section 1 of the PCB into the transformer enclosure
supplied with the fan.
230V to 24V)
Fig 5. Section 1 of PCB will be installed into the transformer
enclosure after the 24V wiring has been completed.
Terminal block
SL N L
@@@
~ "''"''"PPLY
''"'"'' blod DD
a_,.::,~ D '"""""·
lH output @) ® C=:J
SL
0
24V
Bottom edge of PCB.
Section 1 (Power supply 230V to 24V}
24V fan units must be installed in accordance with these
instructions and IEE Wiring Regulations BS7671
for SELV installations.
For good EMC engineering practice, any sensor
cables or switched live cables should not be placed within SOmm
of other cables or on the same metal cable tray
as other cables.
Place section 1 of PCB Slot for small flat screwdriver to come from
underneath the transformer to push clip to one side
into the transfomer enclosure
4
2.6 Transformer installation notes for
wiring sizes
It is important to note that the size of wire used between the
transformer and the fan unit can have an adverse effect on the
units performance if the following table is not adhere to.
Mains Supply: (230V) 0.5mm sq.
Transformer to fan (24V units only)
Cable run (max. 10 metres) Cable size
Up to 2m 0.75 mm sq.
Up to 4m 1.0 mm sq.
Up to 6m 1.5 mm sq.
Up to 10m 2.5 mm sq.
Note to installing electrician: To avoid cable insulation contact with
hot transformer, always use the knockout at PCB end.
27. 05. 14. Leaflet Number 671629
RYD00094076_0004

CYFAN EXTRACT FANS INSTALLATION AND MAINTENANCE
2.7Wiring diagrams
Fig7. 24VWiring options.
Isolation -Before commencing work make sure
that the unit, and Nuaire control are
electrically isolated from the mains supply.
24V SELVWiring (via remote switch)
3 Pole isolator
Mains N
230V
SO Hz
E::J
Fuse 2A
SL
N
Transformer Fan unit
Box (Section 2 PCB)
24V SELVWiring (via pull-cord} LINK
REQUIRED
2 Pole isolator
Mains N
230V
• .....v
SO Hz
Fuse 2A
Fig a. 230V Wiring options.
Unit serving bathroom (via remote switch)
Remote/light switch 3 Pole isolator
Mains N
230V
SO Hz
E:::J
Fuse 2A F
~ Opfo,.[ Omp :El]
Fan unit
Unit serving bathroom or kitchen (via pull-cord}
2 Pole isolator
Mains N =8
--=--------: NL
230V -=---
SO Hz Fuse 2A
Fan unit
5
N
24V
0
Transformer
Fan unit
Box (Section 2 PCB)
Fig9. 230VWiring options for two room
installation (Side spigot).
Wiring for two room installation (No Run-on)
Mains
230V
SO Hz
2 Pole isolator
Wiring for two room installation (Using Run-on)
3 Pole isolator
::ml
'-----r"• N
~--..-oy L
~
::~
Mains · ' '"'
230V Fuse 2A
SOHz L ---tE::J=::t--------~
Fan unit
27. 05. 14. Leaflet Number 671629
RYD00094076_0005

CYFAN EXTRACT FANS INSTALLATION AND MAINTENANCE
3.1 Fan installation
Installation must be completed by qualified personnel.A solid non
reverberant mounting position must be selected and passages for
ductwork from the outlet spigot, as well as electrical connection
prepared. Compatible ductwork should have already been installed.
3.2 Required tools
Drill, PH2 Screwdriver, Terminal Screwdriver and Tape Measure.
3.3 Installation procedures
Fig 10. Surface mounted on a cavity wall.
LI
Ny""'"~'~
(see fig 12). lli:J
1. Unpack the fan unit and other components, and ensure that all
parts listed on page 1 are present. If not please contact the
manufacturer for replacement I missing parts.
2. Place the front cover and inlet grille to one side.
3. Remove the PCB cover by removing 2 off No6 x 1 /2 inch screws.
4. Partially remove the PCB assembly from the fan casing by
placing a finger tip behind the dip switches and pulling the PCB
away from the fan casing. (see fig 11 ).
Fig 11. Removal of PCB cover from casing.
PCB assembly PCB cover
6
S. Disconnect and remove the fan scroll from assembly and
completely remove the PCB assembly. Note: if the pull cord is
not required, remove it completely.
6. Core cut a hole through mounting surface at desired mounting
position to suit the size of the discharge spigot required,
100mm or 12Smm dia.
7. Place the fan casing in the mounting position (spigot placed into
core cut hole) and use the base as a template to mark the
mounting screw hole positions (x3), remove casing once marks
are made.
8. Drill and plug (if necessary) the mounting surface.
9. Feed wiring flex through the back of the fan casing and secure
into place using cable clamps and screws provided in the CYFAN
fixing kit.
10. Secure the case to the surface (fixings supplied by others). Note:
care must be taken not to twist or distort the case whilst fitting.
Ensure the 3 spacers are used from the fixing kit (see fig 12).
11. Partually replace PCB into the fan casing and wire flex into the
terminal block (see wiring options on page S).
Fig 12. Use cable clamp on rear of casing to secure wiring, and the 3
nylon spacers from the fixing kit to ensure the unit is not flush to the
wall. This will allow the power cable to run behind the unit.
Nylon spacer
12. Replace fan scroll assembly and plug motor into PCB, replace
PCB fully into position by pushing the dip switches.
13. Replace PCB cover by fitting with 2 off No6 x 1 /2 inch screws.
(see point 2 of the procedure).
14. Fit front inlet grille using 4 off No6 x 3 /4 inch screws found in
the fixing kit.
1 S. Remove rubber gasket and adjust control to required settings
(shown in section 4). Once required settings are complete and
desired airflow rate is achieved replace rubber gasket.
16. Complete the fan installation by fitting (push fit) the front cover.
27. 05. 14. Leaflet Number 671629
RYD00094076_0006

CYFAN EXTRACT FANS INSTALLATION AND MAINTENANCE
3.4 Fan installation
Note: Semi-Recessed mounting requires the optional mounting kit:
(Part number: CYFAN-RKIT).
Installation must be completed by qualified personnel.A solid non
reverberant mounting position must be selected and passages for
ductwork from the outlet spigot, as well as electrical connection
prepared. Compatible ductwork should have already been installed.
3.5 Required tools
Drill, PH2 Screwdriver, Terminal Screwdriver and Tape Measure.
4. Partially remove the PCB assembly from the fan casing by
placing a finger tip behind the dip switches and pulling the PCB
away from the fan casing. (see fig 14).
5. Disconnect and remove the fan scroll from assembly and
completely remove the PCB assembly. Note: if the pull cord is
not required, remove it completely.
6. Prepare an opening 205mm x 185mm in the mounting position.
7. Position the mounting bracket in the previously prepared
aperture so that the ends of the bracket are flush with the
surface of the wall. Secure the bracket top and bottom with
suitable fixings (by others).
8. Drill and plug (if necessary) the mounting surface.
9. Feed wiring flex through the back of the fan casing and
mounting plate.
10. Secure the case to the surface (fixings supplied by others). Note:
care must be taken not to twist or distort the case whilst fitting.
11. Partually replace PCB into the fan casing and wire flex into the
terminal block (see wiring options on page 5).
Ensure plate edge is flush
with the suface of the wall
Fix fan skirt to inner fan case using
4 of fixing screws (No4 x 3/8").
for a flush fit. -------="""lt--_
Push fit fan cover
to fan grille.
Fit fan grille to inner fan case
using 4 fixing screws (No 6 x 3/4").
Fan grille. Fan motor.
Inner fan
case.
Use 3 off M4 x 16 screws
.-.~-------1-- to secure inner fan case
to the mounting plate.
Mounting plate to be
placed within previously
prepaired aperture/opening
(205mm x 185mm)
fix into place using appropriate
fixings (supplied by others).
Fan cover.
~-- Semi-recessed mounting flange.
Fig 13. Semi-Recessed mounting frame kit suitable for 100mm and
125mm dia duct, consists of mounting plate and mounting flange.
3.6 Installation procedures
1. Unpack the fan unit and other components, and ensure that all
parts listed on page 1 are present. If not please contact the
manufacturer for replacement I missing parts.
2. Place the front cover and inlet grille to one side.
3. Remove the PCB cover by removing 2 off No6 x 1 /2 inch screws.
Fig 14. Removal of PCB cover from casing.
PCB assembly PCB cover
7
12. Replace fan scroll assembly and plug motor into PCB, replace
PCB fully into position by pushing the dip switches.
13. Replace PCB cover by fitting with 2 off No6 x 1 /2 inch screws.
(see point 2 of the procedure).
14. Fit front inlet grille using 4 off No6 x 3 /4 inch screws found in
the fixing kit.
15. Remove rubber gasket and adjust control to required settings
(shown in section 4). Once required settings are complete and
desired airflow rate is achieved replace rubber gasket.
16. Complete the fan installation by fitting (push fit) the front cover.
Fig 15. Ceiling mounting using the Semi-Recessed mounting kit.
First cut an aperture for the fan in the ceiling, cut and fit (A) timber
supports (not supplied) and fit fan as shown. Note: Remove the
shutters from the spigot if you are mounting CYFAN in the ceiling.
Note: pull-cord must be removed.
Mounting
Plate.
Ceiling.
27. 05. 14. Leaflet Number 671629
RYD00094076_0007

CYFAN EXTRACT FANS INSTALLATION AND MAINTENANCE
3.7 Fan installation
Note: Window mounting requires the optional mounting kit:
(Part number: CYFAN-WKIT).
Installation must be completed by qualified personnel.
3.8 Required tools
Drill, PH2 Screwdriver, Terminal Screwdriver and Tape Measure.
3.9 Installation procedures
3.10 Fitting the fan
1. Unpack the fan unit and window kit components, and ensure
that all parts listed are present (see page 1 and 3.11 of this
document for window kit parts. If not please contact the
manufacturer for replacement I missing parts.
2. Place the front cover and inlet grille to one side.
3. Remove the PCB cover by removing 2 off No6 x 1 /2 inch screws.
Fig 16. Removal of PCB cover from casing.
PCB assembly PCB cover
4. Partially remove the PCB assembly from the fan casing by
placing a finger tip behind the dip switches and pulling the PCB
away from the fan casing. (see fig 16).
5. Disconnect and remove the fan scroll from assembly and
completely remove the PCB assembly. Note: if the pull cord is
not required, remove it completely.
6. Feed wiring flex through the back of the fan casing and secure
into place using cable clamps and screws provided in the CYFAN
fixing kit.
7. Secure the case to the window kit. Note: care must be taken not
to twist or distort the case whilst fitting.
8. Partually replace PCB into the fan casing and wire flex into the
terminal block.
9. Replace fan scroll assembly and plug motor into PCB, replace
PCB fully into position by pushing the dip switches.
10. Replace PCB cover by fitting with 2 off No6 x 1 /2 inch screws.
(see point 2 of the procedure).
8
Fig 17. Use cable clamp on rear of casing to secure wiring.
11. Fit front inlet grille using 4 off No6 x 3 /4 inch screws found in
the fixing kit.
12. Remove rubber gasket and adjust control to required settings
(shown in section 4). Once required settings are complete and
desired airflow rate is achieved replace rubber gasket.
13. Complete the fan installation by fitting (push fit) the front cover.
3.11 Fitting the window kit
The window kit is designed for mounting the unit into windows 4mm to
32mm thick using a 125mm dia. hole in the glass. (see fig 18.)
Parts Checklist CYFAN-WKIT Part No.
1 off Window Cover 041351
1 off Outside Clamp 041350
1 off Inner Clamp 041349
2 off Backdraught Shutter 041286
1 off Screw Kit containing 772285
Shutter Spring
Parts Checklist SCREW KIT-772285
Part No.
2 off
4 off
4 off
2 off
3 off
1 off
Fig 18.
No.8 x 1" CSK HD Supascrew 691646
No.8 x 1-1/2" CSK HD Supascrew 680193
No.8 x 1-3/4" CSK HD Supascrew 691647
No.8 x 2-1/4" CSK HD Supascrew 691648
No.8 x %" Panhead Pozi
180394
(Main Case to Inner Clamp)
Spring 580069
1. Employ a qualified glazier to cut
a hole 125mm dia in the glass or,
alternatively, replace your
window with new glass
incorporating a precut hole.
2. The outer assembly consists of a
cover complete with clamping
plate and an 'O' ring seal. The
clamping plate incorporates a
moulded spigot which is designed
to locate inside the 125mm dia
hole in the glass.
27. 05. 14. Leaflet Number 671629
RYD00094076_0008

CYFAN EXTRACT FANS INSTALLATION AND MAINTENANCE
3.11 Fitting the window kit cont.
3. Back draught Shutters (see fig 2 and fig 19. are clipped into Inner
clamp and the spring is fitted in the lower position.
4. Position the assembly on the outside of the glass. If only one
person is installing the fan it may be helpful to tape the assembly
to the outside glass at this stage during installation as all fixings
and assembly are completed from inside.
S. Working from inside the room with the clamp. Position this inner
clamp over the hole in the glass and and line up the 4 mounting
holes.
6. Select appropriate screws from the screws kit supplied for
mounting into different thicknesses of glass, see table below.
Should the screws foul on the back of the grille during
installation replace with the next size down. There are 2 long and
2 short screws for each thickness of glass, the shorter screws are
at the top.
7. Using four screws locate with the screw bosses in the outer
assembly, draw the inner and outer assemblies together.
Remove any tape supporting the outer assembly and continue to
draw the units together until the 'O' ring is compressed on the
window. Note: do not over tighten the fixing screws as this may
distort the assembly.
8. Wire unit in accordance with the appropriate wiring diagram.
A cable clamp is provided inside the case. Note: the remaining
installation procedures for Window Mounting are as the
description in section 3.10.
Window mounting Screws
Window thickness
2 off 4mm
-11mm
2 off
2 off 12mm -21mm
2 off
2 off 22mm
-32mm
2 off
Screw size
No8 x1" CSK HD
No8 x1-1/2" CSK HD
No8 x1-1/2" CSK HD
No8 x1-3/4" CSK HD
No8 x1-3/4" CSK HD
No8 x2-1/4" CSK HD
Fig 19. Spring assembly. (Also see fig 2).
Inner Clamp
0
Backdraught
Shutter x 2
Fig 20. Window mounting using the optional window mounting kit. The window kit is designed for mounting the unit into windows
4mm to 32mm thick using a 125mm dia. hole in the glass.
Spring
Window Cover and
Outside Clamp Assembly
Backdraught Shutter x 2
Window 4mm to 32mm thick glass
,--+---cut 125mm dia. hole for fan
Window Inside Clamp
Cable entry
Fan Skirt and
Body Assembly
9 27. 05. 14. Leaflet Number
671629
RYD00094076_0009

CYFAN EXTRACT FANS INSTALLATION AND MAINTENANCE
3.10 Fan installation
Note: Surface mounting mounting with side spigot requires the
optional mounting kit: (Part number: CYFAN-DKIT).
Installation must be completed by qualified personnel.A solid non
reverberant mounting position must be selected and passages for
ductwork from the outlet spigot, as well as electrical connection
prepared. Compatible ductwork should have already been installed.
3.11 Required tools
Drill, PH2 Screwdriver, Terminal Screwdriver and Tape Measure.
3.12 Installation procedures
Fig 21. Typical installation example of fan unit with subsidiary spigot
kit in bathroom and adjacent toilet application.
Inlet Grille, supplied 3M length of duct supplied with CYFAN-DKIT
with CYFAN-DKIT. (Alternatively standard SOmm waste pipe can be used).
Fan with spigot kit.
0
1. Unpack the fan unit and components, and the subsidiary spigot
kit. Ensure that all parts are present. If not please contact the
manufacturer for replacement I missing parts.
The subsidiary Spigot Kit incorporates:
a. A new outer fan skirt with one SOmm dia. hole in the side.
b. A new fan body with a SSmm dia. hole in each side.
c. A SOmm dia. sub spigot.
d. 3M of SOmm duct.
e. Inlet grille with filter.
Fig 22. Example of a subsidiary spigot kit (Code: CYFAN-DKIT).
Note: SOmm grille available (Code: SOIG).
Subsidiary spigot kit inner
fan body with 2 spigot holes.
I
\
,.. -- ....
' '
Subsidiary spigot kit outer
fan skirt with 1 spigot hole.
\ The outer fan skirt can be rotated if
-.. required which enables the spigot
hole to be positioned on the right
or left side to meet the application
requirements.
10
Install the SOmm dia. subsidiary spigot from
inside both the inner fan body and outer
skirt. Turn the spigot a quarter turn to lock.
Reinstall inner fan components,
grille and outer front cover.
2. Place the front cover and inlet grille to one side.
3. Remove the PCB cover by removing 2 off No6 x 1 /z inch screws.
4. Partially remove the PCB assembly from the fan casing by
placing a finger tip behind the dip switches and pulling the PCB
away from the fan casing. (see fig 23).
Fig 23. Removal of PCB cover from casing.
PCB assembly PCB cover
5. Disconnect and remove the fan scroll from assembly and
completely remove the PCB assembly. Note: if the pull cord is
not required, remove it completely.
6. Core cut a hole through mounting surface at desired mounting
position to suit the size of the discharge spigot required,
100mm or 125mm dia.
7. Place the fan casing in the mounting position (spigot placed into
core cut hole) and use the base as a template to mark the
mounting screw hole positions (x3), remove casing once marks
are made.
8. Drill and plug (if necessary) the mounting surface.
9. Feed wiring flex through the back of the fan casing and secure
into place using cable clamps and screws provided in the CYFAN
fixing kit. (see fig 24) on following page.
27. 05. 14. Leaflet Number 671629
RYD00094076_0010

CYFAN EXTRACT FANS INSTALLATION AND MAINTENANCE
Fig 24. Use cable clamp on rear of casing to secure wiring, and the 3
nylon spacers from the fixing kit to ensure the unit is not flush to the
wall. This will allow the power cable to run behind the unit.
10. Secure the case to the surface (fixings supplied by others). Note:
care must be taken not to twist or distort the case whilst fitting.
11. Partually replace PCB into the fan casing and wire flex into the
terminal block (see wiring options on page 5). Use cable clamp
on rear of casing to secure wiring.
12. Replace fan scroll assembly and plug motor into PCB, replace
PCB fully into position by pushing the dip switches.
13. Replace PCB cover by fitting with 2 off No6 x 1/z inch screws.
(see point 2 of the procedure).
14. Fit front inlet grille using 4 off No6 x 3 /4 inch screws found in
the fixing kit.
1 S. Remove rubber gasket and adjust control to required settings
(shown in section 4). Once required settings are complete and
desired airflow rate is achieved replace rubber gasket.
16. Complete the fan installation by fitting (push fit) the front cover.
11 27. 05. 14. Leaflet Number 671629
RYD00094076_0011

CYFAN EXTRACT FANS INSTALLATION AND MAINTENANCE
Fig 25. View of PCB assembly control cover and functions.
(rcJ rcJ) 015 Q30 015
Continuous I Humidity 15
intermittent off/on
operation 6 30 8 60 1 30
000000
~ 1il ~ c §
c ~ 8 :§ ~ 0::
ro ro co E Continuous lntermittenV Run-on
"- "- 0
:r:
(l/s) boost (l/s) (mins)
4.1 Default setting
As a default Cyfan units are set as follows:
• Intermittent setting -fan will only operate from pull-cord or
switched live to boost flowrate
• Continuous running (background ventilation) - OFF
• Humidity sensing - OFF
• Air flow rate (boost)-15 l/s
• Run-on timer (from switched live only) - 1 min
4.2 Building regulations Part F 2010
flowrates
Room Intermittent extract Continuous extract
Minimum rate Minimum Minimum
high rate low rate*
Kitchen 30 l/s adjacent to hob; 13 l/s 8 l/s
or 60 l/s elsewhere
Utility room 30 l/s 8 l/s 6 l/s
Bathroom 15 l/s 8 l/s 6 l/s
Sanitary 6 l/s 6 l/s 6 l/s
accommodation
*Recommended values, please refer to Part F for further information
12
4.3 Continuous/intermittent switch
Continuous -fans running to provide background ventilation.
The amount of airflow can be set between 6 to 30 l/s.
Operating the pull cord or remote switch will boost the fan to the
adjustable set point available between 8 to 60l/s.
Intermittent -fan does not operate continuously but only when the
pull cord or remote switch is activated. The amount of airflow is
adjustable from 8 to 60 l/s.
4.4 HumidityTracker Switch
The default setting is off. Switching to 'on' will enable the unit to
sense the humidity in the room. The fan will switch itself on when
the humidity rises above 60% and will slowly speed up as the
humidity rises. For example:
Relative Intermittent Intermittent
Humidity Boost Set at 601/s Boost Set at 301/s
60% 20 l/s 10 l/s
70% 30 l/s 15 l/s
80% 40 l/s 20 l/s
90% 50 l/s 25 l/s
100% 60 l/s 30 l/s
4.5 Run-on timer
The run-on timer is adjustable from 1 to 30 mins and can operate
off a remote switch (e.g. bathroom light switch).
4.6 Airflow adjustment
The unit adjustment dials have been set for a unit that has been
installed directly through a wall and with a 125mm spigot. If the
100mm spigot is used and resistance is placed on the fan (long duct
runs) the airflow should be checked using an appropriate measuring
instrument.
5.1 Warranty
The 5 year warranty starts from the day of delivery and includes parts
and labour for the first year.
The remaining period covers replacement parts only.
5.2 Service Enquiries
Nuaire can assist you in all aspects of service. Our Technical Support
department will be happy to provide any assistance required.
Technical Support
on 029 2085 8400
27. 05. 14. Leaflet Number 671629
RYD00094076_0012