Description Of Symbols - elco AGU 2.550 Manual Del Usario

CONTENT
DESCRIPTION OF SYMBOLS .....................................................................................................................................................19
1. INTRODUCTION ................................................................................................................................................................20
2. DESCRIPTION OF ACCESSORY ......................................................................................................................................20
3. MOUNTING ON THE BOILER CONTROL PANEL ............................................................................................................20
4. ELECTRICAL CONNECTIONS FOR THE ACCESSORY AGU 2.550 ...............................................................................21
4.1 ELECTRICAL CONNECTIONS OF EXTERNAL ACCESSORIES .....................................................................................22
5. ACCESS TO PARAMETERS .............................................................................................................................................23
6. MIXED HEATING SYSTEM ................................................................................................................................................23
6.1 SCHEME 1 .........................................................................................................................................................................24
6.2 SCHEME 2 .........................................................................................................................................................................25
6.3 SCHEME 3 .........................................................................................................................................................................26
7. ZONE HEATING SYSTEM .................................................................................................................................................27
7.1 SCHEME 4 .........................................................................................................................................................................27
7.2 SCHEME 5 .........................................................................................................................................................................28
8. ELECTRICALLY CONNECTING THE AMBIENT THERMOSTAT ......................................................................................29
8.1 CASE - 1 - Connecting a single ambient thermostat in a high temperature zone. .............................................................29
8.2 CASE - 2 - Connecting ambient thermostats for a high temperature multi-zone system. ..................................................29
8.3 CASE - 3 - Connecting ambient thermostats for a low temperature multi-zone system. ....................................................29
8.4 CASE - 4 - Connecting ambient thermostats for a low temperature multi-zone system
with micro limit switches in the zone valves. ......................................................................................................................30
9. DHW SOLAR PLANT .........................................................................................................................................................30
10. PARAMETERS SETTING...................................................................................................................................................31
10.1 HEATING SYSTEM ............................................................................................................................................................31
10.2 DHW SYSTEM ...................................................................................................................................................................32
10.3 SUNDRY PARAMETERS ...................................................................................................................................................32
11. SUNDRY FUNCTIONS .......................................................................................................................................................33
11.1 DHW RECIRCULATION PUMP ..........................................................................................................................................33
11.2 SOLAR PLANT FOR SWIMMING POOL ...........................................................................................................................33
11.3 GENERIC HEAT DEMAND ................................................................................................................................................34
11.4 OTHER CONFIGURATIONS ..............................................................................................................................................34
12. LIST OF FAULTS ................................................................................................................................................................35
13. TECHNICAL SPECIFICATIONS .........................................................................................................................................35
As constantly strives to improve its products, it reserves the right to modify the information contained in this document at any
time and without prior notice. This document is issued purely for the sake information and should not be considered as a
contract with third parties.

DESCRIPTION OF SYMBOLS

WARNING
Risk of damage to or malfunction of the appliance. Pay special attention to the warnings concerning dan-
ger to people.
DANGER - HIGH VOLTAGE
Live components - electrocution hazard.
IMPORTANT INFORMATION
Information to read with particular care as it is useful for the correct operation of the boiler.
19 7104900.03 (1-11/13)