Titon aurastat VT, Product Manual

Page: 6 / 44

Continued....
2 x Proportional Sensor
Inputs
Enables connection of environmental
sensors to the HRV which can be used
to proportionally control HRV fan
speeds.
3 x Volt Free Inputs
Enables the connection of single pole
momentary switches, latching switches
or normally open relay contacts
to the HRV. These can be used to
switch between fan speeds or control
SUMMERboost® and Summer Mode.
2 x Live Switch Inputs
These inputs are used to switch the
HRV to Boost Speed via a switched live
input.
Frost Protection Program
During very cold weather, the Frost
Protection Program will detect
temperatures that could cause ice to
form inside the unit. It will reduce
or stop the supply ventilation rate,
thus allowing the warmer stale air to
raise the temperature within the unit
cell to such a level that prevents the
formation of ice. As temperatures
rise the Frost Protection Program
will increase the supply ventilation
flow rate back to the commissioned
settings.
Holiday Mode
The aurastat ® VT can set the HRV to
Holiday Mode. Holiday Mode sets the
HRV to speed 1 Setback Speed, Boost
Inhibit is enabled.
Multiple Internal
Temperature Sensors
The aurastat ® VT LCD can display the
From Atmosphere and To Atmosphere
air temperatures in real-time.
Additionally the temperature of the
heat cell is monitored.
HRV Run Timer
The aurastat ® VT displays the total run
time of the unit in hours.
Heating Failure Mode
This feature stops all ventilation and
overrides any other speed control
input when the air extracted from
the dwelling is below 5°C. The Frost
Program icon will flash and the fan
speeds will display 0%.
The unit will remain off until the Fan
Key is pressed or the temperature
increases above 5°C.
When the Fan Key is pressed the
unit will restart at full speed and
settle back to normal operation after
approximately 40 seconds. If the air
extracted from the dwelling is still
below 5°C Heating Failure Mode will
stop the ventilation again. Heating
Failure Mode does not prevent the
unit running during commissioning in
Setup Menu 3.
6