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Continuous Ventilation
Installation and Operating Guide
TM
iCONstant T - 72687117
iCONstant HT - 72687118
Model
A
B
C
D
E
iCONstant
197
120
70
100
50
Function
1
2
3
4
5
6
7
8
Delayed
start
0 seconds
OFF
Delayed
start
2 minutes
ON
Timer
2 mins
OFF OFF
Timer
15 mins
OFF ON
Timer
30 mins
ON OFF
Timer
45 mins
ON
ON
Humidity
50-60%
OFF OFF
Humidity
60-70%
OFF ON
Humidity
70-80%
ON OFF
Humidity
80-90%
ON
ON
Flow rate
OFF
OFF OFF
Flow rate
6 L/s
OFF ON
Flow rate
8 L/s
ON OFF
Flow rate
13 L/s
ON
ON
Flow sensor
ON
ON
Flow sensor
OFF
OFF
TL
N
RCD
N
L
3 AMP
SWITCHED FUSE
3 POLE FAN
ISOLATOR
2 POLE FAN
ISOLATOR
L
N
LS
TL
N
RCD
N
L
3 AMP
SWITCHED FUSE
For control with
external switching
N - Neutral
L - Live
T - Tigger
N - Neutral
L - Live
For control with no
external switching
TLN
ON
OFF
ON
OFF
A
E
D
A
C
B
Fan overview
Electrical Installation
Installation
Prepare wall or ceiling
Access to the electronics
Dip switch functions
Fan Dimensions
The iCONstant range consists of timer and humidity/timer
variants. They are designed for use in any wet room. Trickle
flows rates of 6, 8 or 13 l/s can be activated on installation.
Boost flow rates are selected by pull cord, external switch
or humidity sensor (HT model only). The iCONstant range is
IPX5 rated and suitable for use in Zone 1 of a wet room.
Secure supply wires into the terminal block. L—Live,
N-Neutral and T—switched live (optional). Secure AC mains
cable to main body of fan with cable clamp supplied.
Fit back plate cover.
1. Locate back plate cover on to main body assembly.
2. Twist back plate cover clockwise until locked. (Arrow
should be in the 12 o’clock position).
3. Secure back plate cover with fixing screw.
All electrical installation to be carried out by an approved
electrician in accordance with Part “P” U.K. Building
Regulations and to the latest IEEE standards, or the
appropriate regulations in the country of installation.
iCONstant fans require a 90-264V 50/60Hz supply, it is
double insulated so therefore does not require an earth.
Fans installed in Zone 1 or Zone 2 must be at least IPX4
(splash proof) rated. Additionally, fans installed in Zone 1
must be SELV (Safety Extra Low Voltage) or IPX5 (jet proof)
rated. The iCONstant range is IPX5 rated and suitable for
use in Zone 1.
Remove back plate cover.
1. Remove screw at base of back plate cover.
2. Twist back plate cover anticlockwise.
3. Lift away.
Mount fan into the spigot hole ensuring cable is fed through
the cable grommet provided. Position alignment arrow
vertically. Fix to wall or ceiling with the 4 screws provided.
Description of electronic controls.
Dip Switch factory settings highlighted above.
Remove front cover.
1. Twist anticlockwise and 2. Lift away.
Using the template provided, mark and drill a spigot hole to
suit 100mm diameter rigid ducting. Make provision for the
electrical supply cable. Fit wall plugs provided.
Remove electronics cover.
1. Undo the 2 fixing screws,
2. Lift off electronics cover.
Front Cover
Alignment Arrow
Increase airflow
Alignment arrow
Humidity sensor
(HT model only)
Decrease airflow
Info LED
Function
Dip Switches
1
1
1
2
2
2
3
3
Back Plate Cover
Main Body
Electronics Cover
80000343 Issue 1 04/15
