NuAire CYFAN-C Installation And Maintenance Manual Download Page 7

CYFAN-C EXTRACT FANS 

INSTALLATION AND MAINTENANCE

7

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.

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 / missing parts. 

2.

Place the front cover and inlet grille to one side.

3.

Remove 4 off No8 x 

3

8

inch Pozi screws from the rear of the

unit. This allows the exterior case to be removed and disposed of.

4.

Remove the PCB cover by removing 2 off No6 x 

1

2

inch screws.

Fig 14. Removal of PCB cover from casing.

5.

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).

6.

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.

7.

Prepare an opening 205mm x 185mm in the mounting position.

8.

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).

9.

Drill and plug (if necessary) the mounting surface.

10. Feed wiring flex through the back of the fan casing and

mounting plate.

11. Secure the case to the surface (fixings supplied by others). Note: 

care must be taken not to twist or distort the case whilst fitting.

12. Partually replace PCB into the fan casing and wire flex into the

terminal block (see wiring options on page 5).

13. Replace fan scroll assembly and plug motor into PCB, replace

PCB fully into position by pushing the dip switches.

14. Replace PCB cover by fitting with 2 off No6 x 

1

2

inch screws.

(see point 2 of the procedure).

15. Fit semi-recessed mounting flange to case using 4 off No4 x 

3

8

inch screws.

16. Fit front inlet grille using 4 off No6 x 

3

4

inch screws found in

the fixing kit.

17. 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.

18. 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.

1.1 Installation Procedures cont.

Fit fan grille to inner fan case
using 4 fixing screws (No 6 x 3/4").

Push fit fan cover 
to fan grille.

Fix fan skirt to inner fan case using 
4 of fixing screws (No4 x 3/8").

Ensure plate edge is flush 
with the suface of the wall 
for a flush fit.

Use 4 off M4 x 16 screws
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 grille.

Fan motor.

Semi-recessed mounting flange.

Inner fan 
case.

Fan cover.

SECTION 3.0 
FITTING THE PRODUCT
SEMI-RECESSED MOUNTING

PCB assembly

PCB cover

Mounting
Plate.

A

A

A

A

Ceiling.

10. 05. 17. Leaflet Number 691500

Ceiling.

Summary of Contents for CYFAN-C

Page 1: ...rate toilet Part number CYFAN DKIT n Semi recessed mounting kit Part number CYFAN RKIT n Optional filter available Part number 7702017 1 4 What comes in the box The following components are included S...

Page 2: ...o 24V conversion n All Wiring Diagrams Section 3 Fitting the Product Page 6 Section 4 Setting the Product to work Page 12 n Default settings n Part F Flow rates n Air flow adjustment Inc Controls labe...

Page 3: ...e simple steps to fit your back draught shutters if required It is advised to fit the shutters before installing the fan unit n Collect all required parts n 125mm shutters 2 off 41285 or 100mm shutter...

Page 4: ...osition the transformer base enclosure on mounting surface and route cables through knockouts Mark the fixing points on the mounting surface Secure using suitable fixings by others 3 Before fitting se...

Page 5: ...if not fitted fan will run at full speed only 24V 0 SL Fan unit Section 2 PCB Transformer Box Fan unit Section 2 PCB 2 Pole switch Fuse 2A BS 1362 N L Mains 230V 50Hz Wiring for two room installation...

Page 6: ...n 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 Fe...

Page 7: ...ed wiring flex through the back of the fan casing and mounting plate 11 Secure the case to the surface fixings supplied by others Note care must be taken not to twist or distort the case whilst fittin...

Page 8: ...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 Fig 17 Use cable clamp on rear of casing to s...

Page 9: ...osses 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 win...

Page 10: ...lter f Reduction Filter Fig 22 Example of a subsidiary spigot kit Code CYFAN DKIT Note 50mm grille available Code 50IG 2 Place the front cover to one side 3 Place the reduction filter over the grille...

Page 11: ...tting 13 Partially replace PCB into the new fan casing and wire flex into the terminal block see wiring options on page 5 Go to point 19 14 Utilizing the fan skirt Using the template on page 12 mark o...

Page 12: ...K Relative Intermittent Intermittent Humidity Boost Set at 60l s Boost Set at 30l 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 Fan Failure Boost Humidity Fan...

Reviews: