Wiring
Standard Fans
The standard fan can be connected to the lighting circuit and controlled
from a switch so that it only operates when the switch is on. The fan must
be fed by a DP switched connection unit fitted with a 3A fuse. See Fig. 1.
The connections for this fan are:
L permanent live
N neutral
Timer Fans and Timer and Humidistat Fans
The timer fan can be connected to the lighting circuit. The circuit for this
fan must be protected by a 3A device and should be controlled by a 3 pole
fan isolator. See Fig. 2.
The connections for this fan are:
L permanent live
S switch live
N neutral
Low Voltage Fans
The Low Voltage ventilation fan can be installed in zone 1 in a bathroom or
shower room, however the supply transformer must be installed outside
zone 2 (see Special Installations or Locations Particular Requirements in
the current edition of the IEE Wiring Regulations, BS 7671). The
transformer requires a 240V supply, and has an ELV output to the fan.
Shower Fan Kits
In-line fans in the shower fan kit are mains voltage and wiring is identical
to timer fan, see Fig. 2. The 12V light in the shower kit is low voltage and is
fed by the voltage transformer which is wired independently from the
ceiling rose/junction box.
Control Adjustments
The timer and humidistat and timer fans are supplied with an insulated
screwdriver for adjusting the controls, which is clipped to the fan body.
Timer
The timer is adjustable from approximately 2 minutes to 30 minutes. The
timer is factory set at approximately 15 minutes. Turn the control
clockwise to increase the on time. Timers should be set for 15 minutes
minimum.
Humidistat
The humidistat range is approximately 60 – 90% relative humidity. The
humidistat is factory set at approximately 75%. Turn the control clockwise
to increase humidity
Specification
Voltage
220 – 250V ac 50Hz
Extraction Rate 4”
90m
3
/hr ( 25 ltr/sec)
Compliance
BS EN 60335-1 and EN 62233
Extraction Rate 6”
255m
3
/hr ( 71 ltr/sec)
Hole cutout dimensions
4” fan
Ø 110mm hole max.
Extraction Rate 4” Low Voltage
85m
3
/hr ( 24 ltr/sec)
6” fan
Ø 155mm hole max.
Extraction Rate 4” Flat Fascia
92m
3
/hr ( 26 ltr/sec)
Timer Adjustment
2 – 30 minutes
Extraction Rate 4” Shower Fan
107m
3
/hr ( 30 ltr/sec)
Humidistat Adjustment
60 – 90% humidity
IP Rating
IP 24 (Shower Fan IP X4)
NPD 0452 12/2015 V2
Deta Electrical Company Limited
Kingsway House Laporte Way
Luton Bedfordshire LU4 8RJ UK
Tel.: +44 (0)1582 544 544 Technical Helpline: +44 (0)1582 544 548
Fig.1
Fig.2
Insulated screwdriver
Cable Entry
Humidistat
Timer
