COSMOGAS MYDENS, Installation, Use And Maintenance Manual

Page: 2 / 76

2
MYDENS
COSMOGAS
INDEX
1 - GENERAL SAFETY RECOMMENDATIONS ..................................................................................................4
1.1 - National installation laws .......................................................................................................................................... 4
2 - GENERAL INFORMATION .............................................................................................................................5
2.1 - Presentation ............................................................................................................................................................. 5
2.2 - Overview of the models ............................................................................................................................................ 5
2.3 - Manufacturer ............................................................................................................................................................ 5
2.4 - Key for the symbols used ......................................................................................................................................... 5
2.5 - Maintenance ............................................................................................................................................................. 5
2.6 - Warranty ................................................................................................................................................................... 5
3 - MAIN COMPONENTS .....................................................................................................................................6
4 - OPERATION ...................................................................................................................................................8
4.1 - Operation and intended use of the appliance ........................................................................................................ 10
4.2 - Characteristic curves of the residual head at the central heating plant ...................................................................11
4.3 - Characteristic curve of the domestic hot water head losses .................................................................................. 13
5 - INSTALLATION .............................................................................................................................................14
5.1 - Opening the packaging .......................................................................................................................................... 14
5.2 - Dimensions and minimum safety distances ........................................................................................................... 14
5.3 - Choosing the place of installation .......................................................................................................................... 14
5.4 - Supply and return ................................................................................................................................................... 14
5.5 - Low temperature plants (or on the floor) ................................................................................................................ 15
5.6 - Domestic hot and cold water .................................................................................................................................. 15
5.7 - Gas ......................................................................................................................................................................... 15
5.8 - Mounting the appliance .......................................................................................................................................... 16
5.9 - Condensate drain ................................................................................................................................................... 16
5.10 - Safety valve .......................................................................................................................................................... 16
5.11 - Hydraulic and gas connections and mounting of the lower cover ........................................................................ 17
5.12 - Hydraulic connection for MYDENS -- B boiler ...................................................................................................... 18
5.13 - Polyphosphates softener (on request) ................................................................................................................. 18
5.14 - Electric connections: generalities ......................................................................................................................... 19
5.14.1 - Power supply cable connection .............................................................................................................. 20
5.14.2 - Choosing the room thermostat/chronothermostat ................................................................................... 20
5.14.3 - Connecting the room thermostat/chronothermostat ................................................................................ 20
5.14.4 - Installing the external temperature sensor (on request) ......................................................................... 21
5.15 - Connecting the boiler to indirect water heater with coil ........................................................................................ 22
5.15.1 - Anti- legionella ......................................................................................................................................... 22
5.16 - Burned gas exhaust and combustion agent air intake pipe ................................................................................. 23
5.16.1 - Type of intake/exhaust B23 ..................................................................................................................... 24
5.16.2 - “Split 80/80PP” System (polypropylene) (Type C43; C53; C83) ............................................................. 25
5.16.3 - “Split 80/80PP” System (Type C43; C53; C83): accessories available ................................................... 26
5.16.4 - “Split 80/80PP” System (Type C43; C53; C83): installation examples ................................................... 27
5.16.5 - “60/100PP vertical coaxial” System (polypropylene) (C13; C33) ............................................................ 28
5.16.6 - “60/100PP horizontal coaxial” System (polypropylene) (C13; C33) ........................................................ 29
5.16.7 - “60/100PP Coaxial” System: accessories available ............................................................................... 30
5.16.8 - “60/100PP Coaxial” System: installation examples ............................................................................... 31
6 - OPERATING .................................................................................................................................................32
6.1 - Operating ............................................................................................................................................................... 32
6.1.1 - User instruction ......................................................................................................................................... 32
6.1.2 - Filling the condensate drain siphon .......................................................................................................... 32
6.1.3 - Filling the central heating plant ................................................................................................................. 32
6.2 - General recommendations regarding the supply of gas ........................................................................................ 33
6.3 - Type of gas for which the appliance is regulated. .................................................................................................. 33
6.4 - Conversion of the appliance from one type of gas to another ................................................................................ 34
6.5 - Ignition .................................................................................................................................................................... 36
6.6 - Controlling the supply gas pressure and any adjustment ...................................................................................... 36
6.7 - Controlling the combustion agent air pressure ....................................................................................................... 37
6.8 - Controlling the level of CO2 and any adjustment ................................................................................................... 38
6.9 - Adjusting the power in central heating mode (Range Rated) ................................................................................. 39
6.10 - Adjusting the domestic hot water flow rate ........................................................................................................... 39
7 - USE ...............................................................................................................................................................40
7.1 - Controlling cock opening ........................................................................................................................................ 40
7.2 - Checking central heating plant pressure ................................................................................................................ 40
7.3 - Generalities ............................................................................................................................................................ 41