Technical data

3332
CONTROLS
CONTROLLED INLET
TEMPERATURE
To achieve the highest level of heat recovery, Airmaster
ventilation units are fitted with highly-efficient counter-
flow heat exchangers. A comfort heater (which can be
fitted to all Airmaster units) is therefore only used to
align minimal heat loss with ventilation. Balanced ven-
tilation is maintained as long as the inlet temperature
remains within acceptable limits as standard.
Without comfort heater: If the inlet temperature
cannot be maintained, Airlinq will reduce inlet and
increase exhaust air to compensate for a low outdoor
temperature. The function is also active if comfort
heater capacity is utilised 100%. The balance between
supply and exhaust air, plus a draught-free zone, is
maintained via a comfort heater. The same applies in
the event of extremely low outdoor temperatures.
ELECTRIC COMFORT HEATER
An electric comfort heater heats the inlet after the
counterflow heat exchanger to the inlet temperature
set if needed. The Airlinq control system controls the
temperature in the unit, and automatically activates
the comfort heater if it is needed. A high capacity
comfort heater fitted to a ventilation unit will simulta-
neously take over the role of a preheater. Refer also to
"Frost protection via "Virtual preheater" with electric
comfort heater" on page31.
ELECTRIC COMFORT HEATER
WATER HEATING SURFACE
Optional water-carrying
comfort heater.
WATER HEATING SURFACE
Most ventilation heaters can have a water heating
surface fitted as an alternative to an electric comfort
heater. This will also ensure the desired inlet tempe-
rature. The large surface area of the heater ensures
efficient transfer of heat energy to the inlet.
The Airlinq control system starts and stops the heater
using a motor-driven valve. The heater is supplied
built-in to the ventilation unit, or as part of the duct
system. Connection to the local heating system is
therefore quick and simple.
FROST PROTECTION OF WATER HEATING SURFACE
The water heating surface is fitted with a separate,
self-controlling heat retention valve, which ensures
a minimum temperature even when the ventilation
unit is switched off. All nominal values for the water
heating surface are preprogrammed into the Airlinq
control system to ensure it is protected against frost,
and always functional.
CONTROL PROCESSES
WITH HEATERS
ENERGY METER
All Airmaster ventilation units can be fitted with an energy
meter, to provide a precise overview of the unit's electricity
consumption. The figures can be read directly on the meter's
display. Consumption on units with the P control system can
also be read on PC using Airlinq Service Tool.