ECKELMANN UA 400, Инструкция по эксплуатации

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Firmware V3.15 21.04.2021 62/401
Enthalpy-controlled on time
This operating mode requires the pack controller installed in the E*LDS system to be fitted with a humidity
sensor and temperature sensor for the ambient room air. The case controller then continuously determines the
optimum heater on time from these two measurements. Two parameters are used, emergency on time and
offset for enthalpy-controlled frame heater.
The value entered for the Enthalp. Offs. parameter (Menu 2-5-2) is added to the on time calculated by the case
controller as a function of room air humidity and temperature. The default setting of zero should be retained
initially. If problems are observed, for instance fogging of glass pane elements, the setting can then be adjusted
upwards to obtain a higher heating capacity.
If reception of ambient humidity and temperature signals from the pack controller is interrupted, the case
controller will use the emergency on time setting (0-100%) as the on time.
Notes and limitations when using enthalpy-controlled heater
A minimum of one pack controlled fitted with ambient air humidity and temperature sensors must be installed in
the store. If more than one pack controller is fitted with these sensors, the case controller will select one pack
controller at new start/restart and then work only with the values transmitted by that pack controller.
Failure of pack controller/CAN bus when using enthalpy-controlled heater
If the case controller does not receive ambient air temperature and humidity signals from the pack controller
over a period of 10 minutes, it will automatically switch to the set emergency on time.
We recommend equipping only one pack controller in the store with ambient air humidity and
temperature sensor. These sensors should be mounted at locations that will ensure the humidity and
temperature measurements supplied are as representative as possible for all refrigeration points in the
store.
Trouble-free operation is not ensured if only a temperature sensor or a humidity sensor is connected to
a pack controller. The two sensors must always be connected as a pair to the same pack controller.
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