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Summary of Contents for COSMOGAS MYDENS
- Page 1 INSTALLATION, USE AND MAINTENANCE MANUAL MYDENS GAS WALL-MOUNTED CONDENSING BOILER 62403580 - R00 17-12-2013_IT...
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Page 2: Table Of Contents
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 ...................... -
Page 3: Index
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 COSMOGAS MYDENS... -
Page 4: General Safety Recommendations
Fire Service if the former are not available. Any optional or kits added successfully must be original Cosmogas products. If you can smell combustion products 1. - Switch the appliance off. This appliance must be intended only for the use for which 2. -
Page 5: General Information
This product has been developed thanks to the constant research by COSMOGAS, considered the “top” regarding respect for the environment, as it lies within class 5 (the least polluting) envisioned by the EN 297 (and EN 483) Technical Standard and has high efficiency;... -
Page 6: Main Components
14 - Support attachments 31 - Control board 15 - Conveying fitting 32 - Access to the gas valve adjusters 16 - Air intake and burned gas exhaust fittings 17 - Combustion analysis points Figure 3.1 - Boiler internal components COSMOGAS MYDENS... - Page 7 40 - Central heating circuit drain cock agent air pipe 53 - Left ignition electrode 1002 41 - Domestic hot water temperature sensor (Par. 54 - Right ignition electrode 42 - Plant fill cock Figure 3.1 - Boiler internal components COSMOGAS MYDENS...
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Page 8: Operation
4 - OPERATION Figure 4.1 - Hydraulic layout MYDENS 24P MYDENS 34P Figure 4.2 - Hydraulic layout MYDENS 15B MYDENS 24B MYDENS 34B COSMOGAS MYDENS... - Page 9 37 = Central heating plant Figure 4.3 - Hydraulic layout 38 = Domestic hot water plant 39 = Water supply attachment for filling plant MYDENS 15C 40 = Supply to indirect water heater 41 = Return from indirect water heater MYDENS 24C...
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Page 10: Operation And Intended Use Of The Appliance
Before installation the central heating plant and the A) - MYDENS -- “P”. With this boiler it is possible to realise domestic hot water plant must be washed thoroughly in a plant for the production of instantaneous domestic hot... -
Page 11: Characteristic Curves Of The Residual Head At The Central Heating Plant
4.6 and 4.7. 1000 1200 1400 Q (l/h) Figure 4.4 - Residual head for MYDENS 24 with 6 metre pump (standard) 1000 1200 1400 Q (l/h) Figure 4.5 - Residual head for MYDENS 34 with 6 metre pump (standard) - Page 12 4 - OPERATION 1000 1200 1400 Q (l/h) Figure 4.6 - Residual head for MYDENS 24 with 7 metre pump (on request) 1000 1200 1400 Q (l/h) Figure 4.7 - Residual head for MYDENS 34 with 7 metre pump (on request)
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Page 13: Characteristic Curve Of The Domestic Hot Water Head Losses
1100 1200 1300 Q (l/h) Figure 4.8 - Residual head for MYDENS with modulating pump (on request) 4.3 - Characteristic curve of the domestic hot water head losses Each boiler offers certain resistance on the passage of the domestic hot water (see flow rate/pressure graphics in figure 4.9). -
Page 14: Installation
ATTENTION !!! This boiler has a safety valve calibrated at 3 bar. A water head over 30 m must therefore not be installed. ATTENTION !!! COSMOGAS is not liable for any damage caused by incorrect use of additives in the central heating plant. -
Page 15: Low Temperature Plants (Or On The Floor)
The connection of the domestic hot water service is not indispensable; if the boiler is used for central heating only, just connect the cold water pipe to fill the central heating plant and close the d.h.w. outlet. COSMOGAS MYDENS... -
Page 16: Mounting The Appliance
5.7 is provided on request. ATTENTION !!! If not connected to the drain, Figure 5.4 - Safety valve drain and condensate whenever the safety valve should intervene, it could drain connection cause damage to persons, animals or objects. COSMOGAS MYDENS... -
Page 17: Hydraulic And Gas Connections And Mounting Of The Lower Cover
Once the hydraulic and gas connections have been made, proceed with assembly of the lower cover “H” as indicated in figure 5.6. 020002.01.004 Figure 5.6 - Water and gas connections min10 mm max 30 mm 020002.01.028 Figure 5.7 - Siphon funnel (on request) COSMOGAS MYDENS... -
Page 18: Hydraulic Connection For Mydens -- B Boiler
5 - INSTALLATION 5.12 - Hydraulic connection for MYDENS -- B boiler The “B” version of the boiler must be connected to a indirect water heater with coil for the production of domestic hot water (see also chapter 5.15). To do this, fittings have been set-up for connection to the indirect water heater. -
Page 19: Electric Connections: Generalities
DNC = External diverter valve (if present) (D = Domestic hot water line; N = Neutral; C = Heating line) L1 = boiler power supply line N = Boiler power supply neutral EARTH SYMBOL = Earth contacts 020002.01.009 020002.01.010 Figure 5.10 - Electric connections COSMOGAS MYDENS... -
Page 20: Power Supply Cable Connection
(25Vdc), they must flow in wires different from the - potential-free (not powered); 230 Vac power supplies. - closing when there is a request for heat; - 24Vac, 1A electrical feature. Figure 5.11 - Correct positioning of the room thermostat/chronothermostat COSMOGAS MYDENS... -
Page 21: Installing The External Temperature Sensor (On Request)
The enabling of the external sensor is confirmed by the appearance of the icon on the display. Proceed with the steps given in chapter 7.11.3 to set the correct adjustment values of the supply temperature depending on the external temperature. COSMOGAS MYDENS... -
Page 22: Connecting The Boiler To Indirect Water Heater With Coil
4.- introduce the temperature sensor inside the indirect water heater sample point (see figure 5.12 detail “14”). The MYDENS -- C model boiler can be connected to a indirect water heater with coil also after installation. In this case, a diverter valve must be envisioned outside... -
Page 23: Burned Gas Exhaust And Combustion Agent Air Intake Pipe
ATTENTION !!! With the C63 type exhaust, the condensate coming from the chimney cannot be conveyed into the boiler. - C83, separated with wall intake or another point independent from the intakes of other appliances and flue exhaust. Figure 5.13 - Exhaust/intake systems COSMOGAS MYDENS... -
Page 24: Type Of Intake/Exhaust B23
In rooms where gas appliances are installed, it may become necessary, as well as the input of combustion agent air, also to evacuate the stale air, with resulting release of an additional equal amount of clean air. COSMOGAS MYDENS... -
Page 25: Split 80/80Pp" System (Polypropylene) (Type C43; C53; C83)
1 metre from each other. The brackets must be fixed to rigid walls that can support the weight of the pipe itself. Figure 5.16 - Fixing the exhaust and intake pipes COSMOGAS MYDENS... -
Page 26: Split 80/80Pp" System (Type C43; C53; C83): Accessories Available
62617240 - N° 14 flexible hose M.F. PP L=20m 62617241 - N°16 spacer for flexible hose 62617238 - N° 17 telescopic joint PP 62617242 - N° 15 T-fitting PP 62617246 - N° 13 45° bend M/F PP COD. 62617306 COSMOGAS MYDENS... -
Page 27: Split 80/80Pp" System (Type C43; C53; C83): Installation Examples
The condensate produced in the vertical pipe must all be conveyed into the boiler. The intake must slope towards the outside to prevent rain water entering. Figure 5.18 - Example of “80/80 PP System” installation COSMOGAS MYDENS... -
Page 28: 60/100Pp Vertical Coaxial" System (Polypropylene) (C13; C33)
1 metre of linear pipe. Every 45° bend has a loss equivalent to 0.5 m of pipe. Figure 5.20 - Quotes and hole centre to centre distances for coaxial drain pre-installation Figure 5.21 - Positioning the coaxial pipe COSMOGAS MYDENS... -
Page 29: 60/100Pp Horizontal Coaxial" System (Polypropylene) (C13; C33)
1 metre of linear pipe. Every 45° bend has a loss equivalent to 0.5 m of pipe. Figure 5.23 - Quotes and hole centre to centre distances for coaxial drain pre-installation Figure 5.24 - Positioning the coaxial pipe COSMOGAS MYDENS... -
Page 30: 60/100Pp Coaxial" System: Accessories Available
62617234 - N° 1 90° coaxial bend M/F PP 62617252 - N° 6 45° coaxial bend M/F PP 62617231 - N° 7 Coaxial extension L 1m PP 62617304 - N° 3 coaxial PP roof terminal 62617232 - N° 5 coaxial PP wall terminal COSMOGAS MYDENS... -
Page 31: 60/100Pp Coaxial" System: Installation Examples
When a coaxial exhaust is made (see figure 5.25), both vertical and horizontal, the exhaust pipe slope upwards in a way to make the condensate flow into the boiler. Figure 5.25 - Examples of coaxial pipe installation COSMOGAS MYDENS... -
Page 32: Operating
5.- check the pressure on the boiler display again. If it has confuse with “A”) and the other end of the hose into the dropped, fill up to 1.5 bar again. funnel; Figure 6.1 - Filling the condensate drain siphon COSMOGAS MYDENS... -
Page 33: General Recommendations Regarding The Supply Of Gas
(natural gas) at a supply pressure of 20 mbar. 3P-G31-37mbar LP GAS means that the appliance is adjusted to operate with type P gas (Propane, also called LP Gas) of the third family, at a supply pressure of 37 mbar. COSMOGAS MYDENS... -
Page 34: Conversion Of The Appliance From One Type Of Gas To Another
21. - re-mount the air manifold (see figure 6.2, detail “C”); 22. - open the gas cock; 020002.01.042 23. - check for any gas leaks using the relevant means of control. Figure 6.4 - Replacing the gas nozzle COSMOGAS MYDENS... - Page 35 5,5 ± 10,5 ± 10,0 ± 4,8 ± 5,6 ± 9,0 ± 8,5 ± 4,8 ± 5,5 ± 10,5 ± 10,0 ± 4,8 ± 5,6 ± Figure 6.7 - Correspondence table for the parameter 3002 and the operating values COSMOGAS MYDENS...
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Page 36: Ignition
17.- check for any gas leaks from the point with relevant control methods. ATTENTION !!! Perform the leak test using a soap and water only. The use of naked flames is prohibited. A - Gas inlet pressure point. Figure 6.8 - Gas valve COSMOGAS MYDENS... -
Page 37: Controlling The Combustion Agent Air Pressure
At the end of the control, remove the tube “E”, close the holes “A”, close the pipe “D” using cap “B” and close the 020002.01.020 pressure point “H” again as in figures 6.9 and 6.10. Figure 6.11 - Controlling combustion agent air pressure COSMOGAS MYDENS... -
Page 38: Controlling The Level Of Co2 And Any Adjustment
B - CO2 adjustment screw at minimum power; the value to 16.- press the RESET key to confirm the modification. 17.- hold the RESET key down for 5 seconds to exit the Figure 6.14 - Gas valve “installer” menu. COSMOGAS MYDENS... -
Page 39: Adjusting The Power In Central Heating Mode (Range Rated)
4.- wait 3 minutes for the temperature to stabilise; 5 - if the water temperatures too cold, the flow rate must be reduced via the selector “A” in figure 6.16, until the desired temperature is reached. Figure 6.16 - domestic hot water flow rate selector COSMOGAS MYDENS... -
Page 40: Use
S - Key for reducing the temperature of the domestic hot water (below minimum, the domestic hot water is switched OFF) or for scrolling and changing the value of the parameters T - On/off switch COSMOGAS MYDENS... -
Page 41: Generalities
2.- press the keys to scroll the parameters situated inside the user menu; Key for figure 7.2 B A C A = Plant fill knob B = Closing direction C = Opening direction 02002.01.044 Figure 7.2 - Plant fill cock COSMOGAS MYDENS... -
Page 42: Adjusting The Instantaneous Domestic Hot Water
(forced central heating switch-off). boiler pump is stopped only when all area thermostats are satisfied (envision the appropriate electric plant). COSMOGAS MYDENS... -
Page 43: Climatic Adjustment: Precautions During Adjustment
30°C for low temperature plants (floor heating); 42°C for high temperature plants (radiators); - It is always possible to set the minimum and maximum central heating temperatures using the respective parameters 3016 3015 present in chapter 11. COSMOGAS MYDENS... - Page 44 = Supply temperature corresponding to the spring-like external temperature 3016 Par. = Minimum supply temperature 3015 Par. = Maximum supply temperature = Line parallelism increase key = Line parallelism decrease key Figure 7.3 - Climatic adjustment graphics for “high temperature” plants (with radiators) COSMOGAS MYDENS...
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Page 45: Timers Of The Various Functions
If the boiler is not used for a long period of time (over a year), it is recommended to empty it following the procedures in chapters 8.16 and 8.17. COSMOGAS MYDENS... -
Page 46: User Menu
1060 Interval of time between the last two blocks (Loc) value in days; value in weeks; 1061 Current rotation speed of the domestic hot water turbine 1062 Current domestic hot water flow rate l/min COSMOGAS MYDENS... -
Page 47: Installer Menu
Forcing of the domestic central heating side diverter valve ON = in central heating mode; OFF = in domestic hot water mode 2013 Forcing of the domestic hot water side diverter valve ON = in domestic hot water mode; OFF = in central heating mode COSMOGAS MYDENS... - Page 48 RESE = Meter reset 2081 Periodic maintenance meter: maintenance request time days From 0 to 1000 1000 2100 Energy saving display OFF = display always on From 1 to 30 = delay to switch- off in minutes. COSMOGAS MYDENS...
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Page 49: Diagnostics
Error code (see chapter 7.19.2 for decode) qualified technician Anti-legionella function running (see chapter 7.12). It will end on reaching the water temperature of 60°C inside the Indirect water heater temperature (°C) ALEg indirect water heater. Maintenance request for the boiler Appliance temperature (°C) COSMOGAS MYDENS... -
Page 50: Diagnostics: Blocks "Loc
Clean and check efficiency again. original position. Loc 15 Software error inside the Replace the command and control board. command board Loc 16 Software error inside the Replace the command and control board. command board COSMOGAS MYDENS... - Page 51 Loc 27 Software error inside the Replace the command and control board. command board Loc 28 Software error inside the Replace the command and control board. command board COSMOGAS MYDENS...
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Page 52: Diagnostics: Errors "E
8.22. Check the The electric circuit must be repaired if it is damaged. electric cables for connection between the sensor Without either of the two previous cases, replace the and the command board. command and control board. COSMOGAS MYDENS... -
Page 53: Diagnostics: Alarms "Atte
0.6 must be replaced. If the plant has a leak it must be pressure too low for bar; check that there are no water leaks from the repaired. more than 10 minutes central heating plant. COSMOGAS MYDENS... -
Page 54: Maintenance
ATTENTION !!! Before every maintenance operation, disconnect the appliance from the electric power supply, using the relevant switch in the vicinity. ATTENTION !!! Close the gas cock before any maintenance operation COSMOGAS MYDENS... -
Page 55: Removing The Casing And Access To Internal Components
To access the electric connections board: 1.- turn the command board “D” towards the front; 2.- slide lid “E” out by operating on the “F” closing flaps; 020002.01.018 Figure 8.1 - removing the casing and opening of command board COSMOGAS MYDENS... -
Page 56: Removing The Burner Fan Unit
10.- check that there are no gas leaks between the joints removed; ATTENTION !!! Perform the leak test using a soap and water only. The use of naked flames is prohibited. 020002.01.024 Figure 8.2 - Removing the burner fan unit COSMOGAS MYDENS... -
Page 57: Correct Positioning Of The Ignition And Ionising Electrodes
2.- empty the central heating circuit, following the procedure in chapter 8.16; 3.- remove the screw “B”; 4.- loosen the fitting “C”; 5.- extract the expansion tank “D” towards the front. 6 - Replace the tank. 020002.01.025 Figure 8.4 - Access to the expansion tank COSMOGAS MYDENS... -
Page 58: Cleaning The Condensate Conveyor Siphon
10.- restore the level of liquid inside the siphon following the Figure 8.5 - Removal of the condensate collection procedure in chapter 6.1.2. siphon 020002.01.030 02002.01.029 Figure 8.6 - Removal of the condensate collection Figure 8.7 - Condensate collection siphon siphon COSMOGAS MYDENS... -
Page 59: Removing The Air Vent Valve
3.- extract the drive bar “A” towards the front; 4.- slide the pressure sensor “B” upwards and extract it. 020002.01.026 Figure 8.9 - Replacing the pump motor 020002.01.036 Figure 8.10 - Removing the central heating circuit pressure sensor COSMOGAS MYDENS... -
Page 60: Removing The Diverter Valve Servo-Motor
A filter with greater capacity must be Figure 8.12 - Removing supply and return fittings installed outside the boiler, on the cold water inlet, as specified in chapter 5.6. 020002.01.033 Figure 8.13 - Removing the flow meter COSMOGAS MYDENS... -
Page 61: Removing The Safety Valve
4.- loosen the bolts “A”; 5.- move the secondary heat exchanger “B” backwards and turn it as per figure; 6.- extract the heat exchanger “B” towards the front of the boiler. 020002.01.037 Figure 8.15 - Removing the secondary heat exchanger COSMOGAS MYDENS... -
Page 62: Emptying The Appliance On The Domestic Hot Water Side
(93°C). 020002.01.038 Figure 8.17 - Cocks opening and closing direction Figure 8.16 - Central heating circuit drain cocks A = Open B = Closed COSMOGAS MYDENS... -
Page 63: Checking The Ionisation Current
On request, the external temperature sensor can be 1004 connected to the boiler (see chapter 5.14.4). The electric resistance existing between the two contacts of the sensor, must correspond with that stated in figure 8.19. Figure 8.19 - External temperature sensor curve COSMOGAS MYDENS... -
Page 64: Operational Wiring Diagram
F (Digital) - Digital fan cables in the next page. F (BCU) - 5A fuse F1 (SDC) - 1.6A power supply fuse GP - Circulation pump GS - Spark generator Figure 8.20 - Operational wiring diagram COSMOGAS MYDENS... - Page 65 J9- 4 pin Molex connector PB - Indirect water heater pump PS - Central heating circuit pressure sensor SDC- Connection board TA- Room thermostat TU - Domestic hot water flow meter V3V- domestic hot water/central heating diverter valve VG1- Sit Gas Valve COSMOGAS MYDENS...
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Page 66: Multi-Wire Wiring Diagram
8 - MAINTENANCE 8.25 - Multi-wire wiring diagram Key - see key figure 8.20 Figure 8.21 - Multi-wire wiring diagram COSMOGAS MYDENS... - Page 67 8 - MAINTENANCE COSMOGAS MYDENS...
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Page 68: Technical Data
9 - TECHNICAL DATA MYDENS TECHNICAL DATA M.U. Type (Type of fumes exhaust/air intake) B23;C13;C33;C43;C53;C63;C83 Category II2H3P II2H3P II2H3P CE type certificate (PIN) 0694CN6126 0694CN6126 0694CN6126 Central heating max. heat input “Q” 14,0 25,5 34,8 Domestic hot water max. heat input... - Page 69 9 - TECHNICAL DATA MYDENS TECHNICAL DATA M.U. Central heating maximum pressure “PMS” Central heating minimum pressure D.h.w. circuit maximum pressure D.h.w. minimum pressure Expansion tank pre-load pressure Expansion tank capacity Rated power supply voltage Rated power supply frequency Absorbed electric power...
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Page 70: Command Menu Diagram
Parameters Installer menu that can be parameters displayed in the (see chapter 7.18) normal conditions (see chapter 7.19) User menu parameters (see chapter 7.17) Return to normal operation Return to normal operation Figure 10.1 - Command menu diagram COSMOGAS MYDENS... -
Page 71: Menu Forced By Internal Electric Bridge
From 20 to 90 temperature Minimum central heating 3016 °C From 20 to 90 temperature 0 = B; (MYDENS 15, 24 e 34) 1 = DN 8; Domestic hot water flow rate 2 = DN 10; 3020 sensor 3 = DN 15;... -
Page 72: Ce Declaration Of Conformity
12 - CE DECLARATION OF CONFORMITY The undersigned COSMOGAS S.r.L., with Registered Office in via L. Da Vincin° 16 - 47014 Meldola (FC) ITALY, DECLARES under its own responsibility that the product: WARRANTY N° GAS BOILER MODEL DATE OF MANUFACTURE... -
Page 73: Warranty
The faulty material replaced under warranty is parts recognised as defective manufacturing. the property of COSMOGAS and must be returned to our establishment, without further damage, within 30 days from Any dispute is the jurisdiction of the Forlì Law Court, ITALY. - Page 76 COSMOGAS s.r.l. Via L. da Vinci 16 - 47014 MELDOLA (FC) ITALY info@cosmogas.com www.cosmogas.com...
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