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Sapphire | Green Line 

GTF100LV SELV Energy Efficient Axial Wall Fans 

These high quality bathroom and toilet extractor fans are designed to provide effective ventilation. To achieve this, 

please read these instructions carefully  BEFORE installing  the fan unit. Failure to comply  with these instructions 

could reduce both the life and performance of the product and may invalidate the warranty. 

This product is suitable for use with up to a maximum of 1.5m of ducting. 

This fan can be used by children aged from 8 years and above and persons with reduced physical, sensory or 

mental capabilities or lack of experience and knowledge if they have been given supervision or instruction 

concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the 

appliance. Cleaning and user maintenance shall not be made by children without supervision. 

IMPORTANT NOTE:

 Before commencing any work read the following instructions carefully and ensure you have the 

necessary competency to complete the work safely. 

WARNING: ISOLATE ELECTRICITY SUPPLY BEFORE STARTING WORK 

Installation:

1. Select a suitable wall position for the fan that keeps the duct as short and as straight as possible (ideally within

400mm of the ceiling)

2. Cut a hole in the wall to suit the outside diameter of the ducting or wall-liner. Install the duct or wall-liner taking

care to seal at both ends between it and the wall using proprietary waterproof mastic

3. Remove the front cover of the fan by pulling straight off the fan back-plate (Diagram 1)

Diagram 1 

       Diagram 2 

      Diagram 3 

4. Position the fan in the duct and mark the four retaining screw positions through the backplate. Fit screw anchors

suitable for the wall construction

5. Remove the central terminal cover by first removing the central Posidriv® retaining screw (Diagram 2)

6. Unclip and remove the fan wall-mounting plate (Diagram 3)

Cable grips arrowed 

Diagram 4 

7. Complete the wiring by following the relevant wiring diagram on the following page (for cable entry detail see

Diagram 4)

8. Reassemble using these instructions in reverse

3

Wiring Instructions: 

It is recommended that the fans are connected into the lighting circuit, with double pole isolation (3mm minimum 

contact separation) provided before the room light switch and suitably fused, in accordance with the latest edition of 

the IEE Wiring Regulations. 

Wall mounted fans for fixed wiring should be connected to the power supply through a cable with solid conductors of 

1.0mm² or 1.5mm². 

ONLY GTF100LV SELV MODELS ARE SUITABLE FOR SHOWER CUBICLES OR ZONES 1 & 2  

(IN THIS RANGE) 

WARNING: ISOLATE ELECTRICITY SUPPLY BEFORE STARTING WORK 

IF IN ANY DOUBT CONSULT A QUALIFIED ELECTRICIAN 

SL or T 

= 230 Vac Switched Live 

L

= 230 Vac Permanent Live 

N

= Neutral 

GTF100LV-T(BS*) 

GTF100LV-H(BS*) (optional timer operation) 

GTF100LV-HPC(BS*) (optional timer operation) 

GTF100LV-H(BS*)  

GTF100LV-HPC(BS*)  

GTF100LV-S(BS*)

GTF100LV-PC(BS*) 

Diagram 5

V E N T I L A T I O N

V E N T I L A T I O N

LAB1103R    Issue 2     09/17

LAB1103R    Issue 2     09/17

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