AirTech ACR35-SELV Petunjuk Instalasi dan Pengkabelan - Halaman 7
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Boost time
The boost setting allows the boost timer to be adjusted from 1-30 minutes, the default
is 15 minutes. This option may also be disabled, thus removing the option from the
menu and setting the overrun to 0.
Inbuilt Ambient Response Humidistat with Rapid Rise Detection
The humidity threshold setting defines at what relative humidity the fan will trigger,
adjustable from 40% to 90% rH. The fan increases in speed slowly between the trickle
and boost speeds between the trigger %rH and +10%. The trigger point will
automatically adjust if the temperature drops below 18C to prevent nuisance triggering.
The fan also incorporates a rapid rise function to detect rapid rises in humidity when the
ambient %rH is under the threshold setting. If a rapid rise is detected the fan will
increase in speed proportionally between the trickle and boost settings until the
humidity lowers again.
Comfort mode
With comfort mode disabled, the fan will go into boost as soon as an LS (Light
Switch) input is detected and over-run for the set period after LS is disconnected.
With comfort mode enabled, the fan will remain off / in trickle up to a maximum of
20 minutes. Once LS is deactivated, fan will run at boost mode for the length of
time LS was present up to a maximum of 20 minutes plus the set over-run time.
If the LS was activated for < 3 minutes, no boost will occur to prevent nuisance
activations.
Fan Control Mode
There are 3 modes for fan speed control. Wall, ducted and constant airflow/ volume
(CV) mode (CV - Pro models only). In wall or ducted mode, the fan speeds are pre-
determined at the factory and does not use the airflow sensor.
In CV mode (Constant Airflow/Volume), the fan will automatically adjust the fan speed
to maintain the desired airflow. After the first 15 minutes of operation the fan enters
calibration mode to determine the most efficient mode of operation.
Calibration Reset
In some circumstances it may be necessary to reset the calibration settings (if the fan
was covered to prevent dust/damage/or poor weather outside).
Reset the calibration by configuring the fan for wall or duct mode (F-0 or F-1), turn the
product off and on and re-configure back to CV mode (F-2).
The fan will calibrate after 15 minutes or by holding the pullcord for 5 seconds.
Pullcord
Switches the fan from trickle to boost (for boost overrun time)
o If the overrun time has been set to 0 (disabled), a default overrun duration
of 5 minutes will take place.
This will override LS comfort mode, boosting the fan immediately
An activation when a Pullcord/LS (Light Switch) boost is already active shall cancel
overrun timer (RH boost sources remain unaffected)