Technical Data; Flow Rate Settings; Frost Protection - Vent-Axia 405215 Installation And User Manual

Technical data

Technical data

Flow Rate settings

The Sentinel Kinetic Advance has four (4) user defined speeds in addition to the non-adjustable Maximum speed.
User defined speeds can be assigned a Mode name from the list below. (some options may not be available in your
region)
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-
-
-
-
Note: The flow rate for each mode is set independently and not defined by the mode name.
When setting up Over Pressure or Fireplace Mode, the supply rate must be set higher than extract rate. This is to
provide a positive internal pressure in the dwelling to assist with the initial expulsion of combustion products from
the fireplace via the flue.
Fireplace mode does not prevent under-pressure
Mechanical Ventilation with Heat Recovery (MVHR) systems are not designed to provide combustion air.
NOTE: It is the responsibility of the open-flued appliance installer to ensure conformance with the current local
building regulations for fuel burning appliances.

Frost Protection

Frost Protection is required to prevent condensate freezing in the heat exchanger at low temperatures. The process
is fully automatic. The method used for frost protection will depend on the model and building it is installed in.
For buildings with a leak rate of 3m3/hr or less (at 50Pa), a balanced frost protection mode must be used. A
balanced mode must also be used when a combustion device without a dedicated air supply is present.
Airflow (Imbalanced)
Airflow mode reduces the Intake flow and increases the Extract flow in varying proportions dependent on the
incoming air temperature. The unit will continue to recover heat as low as -20C. At this point, the unit switches to
'Extract Only' mode.
Bypass (Balanced)
Bypass mode opens the Summer Bypass and stops recovering heat until the external temperature increases
sufficiently.
Airflow & Preheater (Imbalanced)
If a preheater is fitted, the preheater will turn on to warm the incoming air to above freezing. If the air temperature is
so low that the heater cannot warm the air sufficiently, the supply flow rate will be reduced to compensate.
Airflow & Preheater (Balanced)
If a preheater is fitted, the preheater will turn on to warm the incoming air to above freezing. If the air temperature is
so low that the heater cannot warm the air sufficiently, both the supply and extract flow rate will be reduced to
compensate.
58
Low
Normal (Unit default operating mode)
Boost
Purge
Holiday
- Night time
- Party
- Unoccupied
- Over pressure
- Fireplace
MVHR Installation and User Guide 476930