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4.1 Description
The Elan is an advanced air heater, specially designed for
achieving the lowest possible energy consumption.
A microprocessor control unit controls and monitors the safe
operation of the appliance.
4.2 Frost safety
To prevent freezing of the heat exchanger at very low outdoor
temperatures, the Elan appliance is equipped with frost protec-
tion. The water temperature sensor measures the temperatu-
res at the heat exchanger.
When the temperature drops below limit value 1 set at step
no. 10, output H is deactivated and output G is energised (see
§10.1 for an explanation of outputs G and H .
The system fan does keep running to ensure that the system
remains ventilating.
4.3 Outdoor air control
An appliance in outdoor air version has an outdoor air duct,
if necessary tted with a diverter valve, connected to the re-
turn duct. In this version the appliance may take in between 0
and 100% outdoor air, dependent on the setting of the diverter
valve.
4.4 E tra connectors
The Elan appliance is equipped with a 9-pole connector with
additional connection options for various applications.
This connector is accessible behind one of the two lter doors,
without requiring the use of tools.
In a own ow appliance this 9-pole connector is behind the
left-hand lter door; an Up ow appliance has this connector
behind the right-hand lter door.
Elan 10 2.0 / Elan 16 2.0 / Elan 25 2.1
The system fan steplessly displaces more or less air, depen-
dent on the appliance output temperature. The installer can set
the minimum and maximum air owrate on the control panel,
just like the cooling air owrate.
If the temperature drops below the limit value 2 set at step no.
11, the system fan is switched o as well.
When the temperature at the heat exchanger rises again, the
Elan control is automatically reactivated.
You will nd an overview of all step numbers in Chapter 13.
To make the appliance perform as an outdoor appliance, the
installer must change parameter 9 in the settings menu of
the control unit, using the control panel on the appliance (see
§ 6.3 .
Connection no. 9 has no application.
See § 11.1 for more information about connection options of
the 9-pole connector.
614391-F
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