Product Features
Continuous Speed
The normal running speed of the unit.
Boost Speed
Boost Speed is an increased speed providing higher extract air ow.
High Boost Speed
Maximum running speed to rapidly remove humidity & VOC’s in the dwelling.
Boost Switching
The Boost Speed can be enabled via a switch live input wired into the lighting
circuit or independent switch. A second OFF/ON cycle of this switch live input
within 5 seconds switches the fan to High Boost.
Boost/High Boost Overrun Timer
The timer delays the time in which the Boost/High Boost Speed is engaged when
the switch live signal has been enabled for a specic time variable between 0
and 60 minutes.
Constant Flow
The units are tted with an integrated Flow Sensor. This continuously monitors
the air ow through the unit. If the sensor detects a reduction in air ow then the
fan speed increases to maintain required ow rate.
Data Logging
TP 640HD only: The unit records the length of time it has been in powered use
and the average humidity on a Daily/Monthly/Annual basis. The results can be
recalled via the unit's digital display.
Calibration
The unit is tested and tuned by UKAS calibrated equipment during manufacture.
The details of the equipment and certication can be found on the inside of the
fan.
8