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V. 3.1-300317
brookvent.co.uk
6.4 Boost Over-Run Timer
All Brookvent aircycle systems come complete with an automatic boost over-run timer of
15mins (factory set).
The grey ‘
swi
tch wire’ on the aircycle 3.1
systems (
See section ‘5.0
Electrical Connections/ Wiring’) is used to
boost the system.
When a live 230v signal is applied by a switch or sensor, the boost function will be
triggered. When the signal stops, the boost will over-run for a minimum of 15 mins as to
ensure the system has adequately cleared the pollutants that were present. This is also
true for the internal humidistat feature in the aircycle 3.1.
The 15min boost over-run timer control is located on the front of the unit and can be
adjusted by hand and can be set between 0 mins and 15 mins by rotating the control
clockwise to increase the over-run timing.
6.5 Frost Protection
This is an automatic factory setting that causes the supply fan to turn off for 5 minutes
every hour when it senses temperatures below the 5
o
C the set level allowing the warm
extract air from the home to pass though the core unaccompanied by the cold fresh in-
take air. This action succeeds in regularly raising the overall temperature within the Heat
Recovery System preventing the potential formation of ice particles which could cause
damage.
This feature is factory set, automatic, and requires no maintenance.
