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VENTILATION CONTROL
selects the
mode of operation of the fan.
In
CONTINUOUS
mode (dMEV version
only) the fan is always operating and
settings are as follows:
Trickle
Flow
Rate
Boost
Flow
Rate
Flow Setting
Fit
Cone
7 l/s
15 l/s
Continuous H
Yes
9 l/s
15 l/s
Continuous L
Yes
16 l/s
31 l/s
Continuous H
No
To boost to the high flow rate use the
integral pull cord or remote switch (as in
Figure 20). In
INTERMITTENT
mode the
fan will be inactive until initiated by the
remote switch or integral pull cord (or
humidity sensor/ PIR where fitted).
Extraction flow rates are 17 l/s (
L
) or 31 l/s
(
H
).
CONTROLS:
The
RUN TIME
control is used to adjust the
time period that the fan will operate for (or
remain in boost mode) after being
triggered. Using the adjustor tool supplied
you can adjust the rotary control between 2
and 45 minutes. Factory default is set to
approximately 20 minutes. NOTE: If the
pull cord is activated while the fan is
running, the fan will continue
to run for the
full run time period from the time the pull
cord switch is operated.
DELAY START / BOOST
all units are
supplied with the Delay Start/ Boost in the
OFF
position.
Intermittent
– setting the switch to
ON
applies a 2 minute delay to the low speed
–
ideal for quick visits. It does not delay the
Pull Cord override function.
Continuous
– setting the switch to
ON
will
delay the timer function on boost speed, by
2 minutes, where the boost is activated by
a remote switch. It does not delay the Pull
Cord override function.
Note
: This setting does not work on the HT
version of the Continuous Ventilation fan
but will work on the MST version.
The
HUMIDITY
control only applies to the
Humidity Timer model. The humidistat has
a range of between 40 and 90% Relative
Humidity (RH). The factory default is set to
approximately 70%. To adjust the RH
sensitivity turn the control dial anti
clockwise to increase and clockwise to
decrease sensitivity.
NOTE
– if the RH
level is set too sensitive (ie. fully anti
clockwise at 40%), the fan may continue to
run until the RH level goes below the set
figure
– this may result in the fan running
for an extensive period. The Timer can be
adjusted as above.
The MOTION SENSOR TIMER
model has
a passive infrared sensor which triggers the
fan. No control /adjustment necessary.
The Timer can be adjusted as above.
Details of sensitivity range are shown in
Figure 24.
Figure 23
Figure 24
Spare
Switch
