3
029 2085 8400
15. 11. 16. Leaflet Number 671757
DRI-ECO-HEAT-HC
- Installation and Maintenance
10.3 Selecting a Speed
When power to the unit is switched on (via the supplied isolator) the display will
cycle though the outer segments (referred to as start-up pattern). Press the “up”
or “down” switch to choose the flow rate appropriate to the property you are
installing the unit in.
10.5 Setting the Temperature Speed Control Option
When delivered, the unit is set to temperature setting 1 as a default. To change
this setting, switch the power to the unit on (via the supplied isolator). The
display in the ceiling vent will show the start-up pattern for two 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” switch. The display will show a flashing
value of 1 and will increase every 4 seconds. Once you have reached the tem-
perature 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.
9.0 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:
Dicon Safety products – www.diconsafety.co.uk
Aico Ltd – www.aico.co.uk
Note: This is a mandatory requirement for all units installed in a 3 Storey
property.
DRIMASTER
FAN UNIT
Mains power Smoke/CO detector
with NO/NC contacts
NO
NC
N
L
N
L
C
230V
Supply
230V
For information only,
refer to manufacturer’s
specific instructions.
10.4 Setting the Temperature Set Point
A temperature sensor is fitted to the outlet of the heater and will control the
heater output to maintain the set point. The set point ranges between 10˚C (ful-
ly anti-clockwise) and 20˚C (fully clockwise) and can be adjusted via the min/
max commissioning pot located on the ceiling vent diffuser.
10.2 Selecting a Speed
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.
10.0 CONTROL SETTINGS
Option
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 auto-
matically 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 auto-
matically 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
“Heat Recovery Mode”
.
At loft temperatures above 27°C the unit will switch itself auto-
matically to
“Standby Mode”
.
5
Not applicable for the HEAT model.
UP
DOWN
DriMaster-Eco
MIN
MAX
UP
DOWN
DriMaster-Eco
MIN
MAX
10.1 Speed Settings
The unit has 5 air flow rate (speed) settings, 2-6. Switches to control the speed
settings and the display are located on the underside of the diffuser. The follow-
ing table shows the flow rates and their corresponding speed settings.
As an example a one bedroom bungalow should be set to speed 2, and a large 5
bedroom detached property would require speed 6.
Speed Settings
Air flow rate
(Litres/second)
0
Standby (0)
1
10*
2
20
3
30
4
40
5
50
6
60
* At speed 1 the heater will not be enabled.
IMPORTANT
In the event of conducted RF interference between 80 to 127
MHz or transient radiated interference between 80 to 87 MHz, the
unit may go into standby mode or 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 re-
turn to normal after 2 minutes after the RF interference has stopped.
