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KWH150-ECO-LC/20210130
Kair Ventilation Ltd | 9-11 High Street | Sidcup | DA14 6EN | www.Kair.co.uk
KWH150-ECO-LC
Installation Manual
5.0 SMOKE / CARBON MONOXIDE ALARM
AUTOMATIC SHUT DOWN
If the unit is required to switch off in the event of smoke/CO detection,
alarms are available with separate relay bases from companies such as:
Kidde – www.kiddesafetyeurope.co.uk
Aico Ltd – www.aico.co.uk
This is a mandatory requirement for all units installed in a 3 Storey
property.
In the event of conducted RF interference between 80 to 127 MHz
or transient radiated interference between 80 to 87 MHz, the LED
display may go blank and fan stop temporarily, then go into reset
mode (LED flashing with the number of the speed setting) and run
at high speed. The unit will return to normal after 2 minutes after
the RF interference has stopped.
POWER
SUPPLY
FAN
UNIT
Mains power Smoke/CO detector
with NO/NC contacts
NO
NC
N
L
N
L
C
230V
Supply
230V
24V
For information only,
refer to manufacturer’s
specific instructions.
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Alarm Wiring
6.0 CONTROLS
6.1 Speed Settings
The unit has 6 air flow rate (speed) settings, 1-6. Switches to control
the speed settings and the display are located on the rear of the fan
unit. The following table shows the flow rates and their corresponding
speed settings.
As an example a one bedroom bungalow should be set to speed 1, and
a large 5 bedroom detached property would require speed 6.
Speed Setting
Airflow Rate (l/s)
0
Standby (0)
1
10
2
20
3
30
4
40
5
50
6
60
6.2 Speed Selection
When power to the unit is switched on the display will show the
temperature control option for 2 minutes. Once the start-up pattern
has completed you may now press the “up” or “down” switch to choose
the flow rate appropriate to the property you are installing the unit in.
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KWH150-ECO-LC Control
UP
DOWN
6.3 Temperature Control Selection
When delivered, the unit is set to temperature setting 1 as a default.
To change this setting, switch the power to the unit on. The display on
the rear of the fan unit will show the temperature control option for
2 minutes and the unit will being running at speed 6. In this time you
can change the temperature setting by pressing and holding the “up”
button. The display will show a flashing value of 1 and will increase
every 4 seconds. Once you have reached the temperature setting you
require press and release the “down” button to store the setting. The
fan will now enter into its normal speed setting mode and a speed can
be selected at this point.
Temperature
Control
Setting
Temperature Control Description
1
(Default)
At loft temperatures below 19°C the unit will operate on
“Normal Operation Mode”.
At loft temperatures above 18°C but less than 24°C, the
unit will switch automatically to
“Intelligent Heat
Recovery Mode”
.
At loft temperatures above 23°C the unit will switch itself
automatically to
“Standby Mode”.
2
At loft temperatures below 19°C the unit will operate on
“Normal Operation Mode”
.
At loft temperatures above 18°C but less than 31°C, the
unit will switch automatically to
“Intelligent Heat
Recovery Mode”
.
At loft temperatures above 30°C the unit will switch itself
automatically to
“Standby Mode”
.
3
This option removes the temperature sensing function out
of the unit.
The unit will operate continuously in
“Normal Operation
Mode”
depending on the volume control setting selected.
4
At loft temperatures below 16°C the unit will operate on
“Normal Operation Mode”
.
At loft temperatures above 15°C but less than 28°C, the
unit will switch automatically to
“Intelligent Heat
Recovery Mode”
.
At loft temperatures above 27°C the unit will switch itself
automatically to
“Standby Mode”
.
5
At loft temperatures below 19°C the unit will operate on
“Normal Operation Mode”
.
At loft temperatures above 27°C or below 5°C the unit will
switch itself automatically to
“Standby Mode”.
Notes:
Speed Setting 1 is not available for Temperature
Control Option 5. On selecting Temperature Control Option
5, Speed Setting 1, the unit will operate as Speed Setting 2.
