auralite® Boost Alert
Boost Alert is a timer designed to prevent the HRV being inadvertently left in Boost for long periods of time. Once the HRV
is placed in Boost the timer is started and after 2 hours Boost Alert will be activated. This is indicated by the Boost LED on
the auralite® Indicator Panel ashing. Once Boost Alert has been activated the Overrun Timer is disabled meaning the HRV
will return to Continuous Speed as soon as the switch holding the unit in Boost is released.
Summer Bypass
Summer Bypass is designed to operate during hot periods where fresh air can be vented straight into the property without
being preheated by the extracted stale air. Summer Bypass operation is automatically controlled. The Summer Bypass
mechanism diverts the stale air being extracted from the dwelling around the heat cell so that its heat energy is not
transferred to the fresh air being supplied to the property.
SUMMERboost®
An optional SUMMERboost® facility is available that allows both the supply
and extract fans to run at full speed whenever the Summer Bypass is activated.
By default SUMMERboost® is disabled by a Link Wire, see Wiring Diagrams.
Removal of the link wire will enable SUMMERboost®.
When SUMMERboost® is trigged by Summer Bypass the increased fan speed can be prevented either Manually or
Automatically.
Manual - This is by means of a volt-free switch wired directly into the controller PCB.
Automatic - This is by means of a dedicated wall mounted room thermostat. SUMMERboost® will only operate when the
temperature has exceeded the thermostat setting. Should the room temperature fall below the thermostat setting, then
SUMMERboost® will not operate.
Automatic Frost Protection
During very cold weather, Automatic Frost Protection will detect temperatures that could form ice inside the unit. It will
reduce the supply ventilation rate to prevent ice build up within the heat cell. Automatic Frost Protection reduces the ow
rate of cold air, thus allowing the warmer stale air to raise the temperature within the heat cell to such a level that prevents
the formation of ice. As internal temperatures rise Automatic Frost Protection will increase the supply ventilation ow rate
back to the commissioned settings.
Integrated Humidity Sensor
Units are tted with an Integrated Humidity Sensor. This continuously monitors the relative humidity (RH) of the extracted
air and triggers Boost Speed when the relative humidity rises over the set threshold. The Humidity Sensor’s trigger point is
variable from 55%RH to 85%RH and is congured using step-less independent potentiometer.
Enthalpy humidity-recovery
Units with the E sux use an enthalpy heat recovery core that recovers some of the humidity as well as heat.
11
To Next Page
