EC2-391 Display Case and Coldroom Controller
Operating Instructions
GB
Formula for Mean Factors A0, r8, r9 Temperature calculation by the following formula:
Temperature = Airin * (1 - Mean Factor / 100) + Airout * Mean Factor / 100
Examples: |
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Mean factor = 0 | , |
| Temperature = Air in |
Mean factor = 100, | Temperature = Air out | ||
Mean factor = 50 |
| , | Temperature = Average between |
Alarm Codes
E0 Coil in sensor alarm
E1 Coil out sensor alarm
E2
E3
E4 Fin sensor alarm This Alarm Code is inhibited if no fin sensor used (d2 = 0) Explanations for E0 … E4 Alarms: No sensor connected, or the sensor and/or the sensor cable is broken or
Er Data error display - out of range Data send to the display is out of range.
AH High temperature alarm
AL Low temperature alarm
AE Thermostat emergency operation
Air sensor failure, system is in continuous cooling mode
AF Valve Status
Valve closed due to compressor safety loop active
Ao Superheat, emergency operation
Sensor(s) failure
Ar No refrigerant flow detected
No refrigerant flow was detected
Au Valve open 100% for more than 10 minutes
dt Forced defrost termination (time or temperature) Ft Forced fan startup (time or temperature)
Visualising Data: LON Monitoring Server
The
Neuron ID / Service PIN:
The service pin is available on the display. It is used to identify the controller in a
LON network. Press the 
button for app. 1 second to send the Neuron ID. The LED in the left upper corner will indicate the transmission of the Neuron ID.
The default settings may be modified remotely from the Monitoring Server via the LON network. Consult the Monitoring Server user manual for more information.
It is also possible to display live graphical data on the server or to log data containing the control temperature at defined intervals.
Messages
---No data to display
The display will show an
In Reset to default values activated
The display will show an “In” when the factory default configuration data set is initialized.
Id Wink request received
The display will show a flashing “Id” when the wink request was received. The flashing “Id” will be shown on the display until the service button will be pressed, or a 30 min delay timer will expire or a second wink request is received.
OF Node is offline
The node is offline and no application is running. This is the result of a network management command and will happen for example during node installation.
dS Defrost standby dP Pump down dF Defrost cycle
ddDefrost drain delay
dI Defrost injection delay du Defrost
CL Alarms are cleared
Emerson Electric GmbH & Co OHG is not to be held responsible for erroneous literature regarding capacities, dimensions, applications, etc. stated herein. Products, specifications and data in this literature are subject to change without notice. The information given herein is based on technical data and tests which EMERSON believes to be reliable and which are in compliance with technical
knowledge of today. It is intended only for use by persons having the appropriate technical knowledge and skills, at their own discretion and risk. Since conditions of use are outside of EMERSON’s control we cannot assume any liability for results obtained or damages occurred due to improper application.
This document replaces all former versions
Emerson Electric GmbH & Co OHG - Postfach 1251 - Heerstraße 111 - | Germany | - | ||
| www.emersonclimate.eu |
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Replacement for 00 | 4 / 4 | PCN: 865 022 | 21.09.2007 | |
