COSMOGAS MYDENS, Installation, Use And Maintenance Manual

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3 MYDENS
COSMOGAS
INDEX
7.4 - Ignition procedure .................................................................................................................................................. 41
7.5 - “User menu” ........................................................................................................................................................... 41
7.6 - Summer operating mode ........................................................................................................................................ 41
7.7 - Winter operating mode ........................................................................................................................................... 41
7.8 - Adjusting the instantaneous domestic hot water .................................................................................................... 42
7.9 - Central Heating ...................................................................................................................................................... 42
7.10 - Thermostatic adjustment ...................................................................................................................................... 42
7.11 - Climatic adjustment .............................................................................................................................................. 42
7.11.1 - Climatic adjustment: on which plants? .................................................................................................... 42
7.11.2 - Climatic adjustment: precautions during adjustment ............................................................................... 43
7.11.3 - Climatic adjustment: setting the parameters ........................................................................................... 43
7.11.4 - Climatic adjustment: adaptation to different climatic areas ..................................................................... 43
7.11.5 - Climatic adjustment: switching the central heating service on and off .................................................... 43
7.11.6 - Climatic adjustment with room compensation ......................................................................................... 43
7.12 - Timers of the various functions ............................................................................................................................ 45
7.13 - Pumps anti-blocking and diverter valve ............................................................................................................... 45
7.14 - Anti-freeze protection ........................................................................................................................................... 45
7.15 - Automatic plant filling (on request) ....................................................................................................................... 45
7.16 - Energy Saving ...................................................................................................................................................... 45
7.17 - “User menu” ......................................................................................................................................................... 46
7.18 - “Installer menu” .................................................................................................................................................... 47
7.19 - Diagnostics ........................................................................................................................................................... 49
7.19.1 - Diagnostics: blocks “Loc” ........................................................................................................................ 50
7.19.2 - Diagnostics: errors “E” ............................................................................................................................ 52
7.19.3 - Diagnostics: alarms “AttE” ...................................................................................................................... 53
8 - MAINTENANCE ............................................................................................................................................54
8.1 - General recommendations ..................................................................................................................................... 54
8.2 - Removing the casing and access to internal components ..................................................................................... 55
8.3 - Removing the burner fan unit ................................................................................................................................. 56
8.4 - Cleaning the burner and the fumes side primary heat exchanger ......................................................................... 56
8.5 - Correct positioning of the ignition and ionising electrodes ..................................................................................... 57
8.6 - Controlling the expansion tank ............................................................................................................................... 57
8.7 - Cleaning the condensate conveyor siphon ............................................................................................................ 58
8.8 - Removing the air vent valve ................................................................................................................................... 59
8.9 - Replacing the pump motor ..................................................................................................................................... 59
8.10 - Removing the central heating circuit pressure sensor ......................................................................................... 59
8.11 - Removing the diverter valve servo-motor ............................................................................................................. 60
8.12 - Removing the diverter valve ................................................................................................................................. 60
8.13 - Removing the flow meter ..................................................................................................................................... 60
8.14 - Removing the safety valve ................................................................................................................................... 61
8.15 - Secondary heat exchanger for the production of d.h.w. ....................................................................................... 61
8.16 - Emptying the appliance on the domestic hot water side ...................................................................................... 62
8.17 - Emptying the appliance on the domestic hot water side ...................................................................................... 62
8.18 - Fan ....................................................................................................................................................................... 62
8.19 - Minimum and maximum power ............................................................................................................................ 62
8.20 - Checking the ionisation current ............................................................................................................................ 63
8.21 - Checking combustion efficiency ........................................................................................................................... 63
8.22 - Water temperature measurement sensors ........................................................................................................... 63
8.23 - External temperature sensor ................................................................................................................................ 63
8.24 - Operational wiring diagram .................................................................................................................................. 64
8.25 - Multi-wire wiring diagram ..................................................................................................................................... 66
9 - TECHNICAL DATA ........................................................................................................................................68
10 - COMMAND MENU DIAGRAM ....................................................................................................................70
11 - MENU FORCED BY INTERNAL ELECTRIC BRIDGE ................................................................................71
12 - CE DECLARATION OF CONFORMITY ......................................................................................................72
13 - WARRANTY ................................................................................................................................................73
13.1 - General warranty conditions ................................................................................................................................ 73
13.2 - Instructions for filling-in the warranty card ............................................................................................................ 73
13.3 - Limits of the warranty ........................................................................................................................................... 73