COSMOGAS ECOTWIN Installation, Use And Maintenance Manual
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COSMOGAS ECOTWIN Installation, Use And Maintenance Manual

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INSTALLATION, USE AND MAINTENANCE MANUAL
ECOTWIN
HEAT PUMP
62403833 - R03 12-04-2021_UK

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Summary of Contents for COSMOGAS ECOTWIN

  • Page 1 INSTALLATION, USE AND MAINTENANCE MANUAL ECOTWIN HEAT PUMP 62403833 - R03 12-04-2021_UK...

  • Page 2: Table Of Contents

    5.4.1- Configuration for one heating/cooling circuit, DHW and a buffer tank ........19 5.5 - Ecotwin with one heating/cooling circuit, DHW, a buffer tank and a boiler ......20 5.5.1 - Configuration for one heating/cooling circuit, DHW, a buffer tank and a boiler ......21 5.6 - Ecotwin with double heating/cooling circuit, DHW, a buffer tank and a boiler......
  • Page 3 10.25 - Remove the casing and access to the internal components of the STM ......75 10.26 - Wiring diagram ........................76 11 - TECHNICAL DATA....................80 12 -EU CONFORMITY DECLARATION ............... 82 13 - PRODUCT FICHE ....................83 COSMOGAS ecotwin...

  • Page 4: General Safety Warnings

    Failure to comply with this may compromise the safety ensure that this manual remains with the new user and/or of the appliance. installer. Any options or kits added later must be original Cosmogas Qualified installer. products. A ‘qualified installer’ means a person with specific technical This appliance must be intended only for the use for which it...

  • Page 5: General Informations

    N°. 1 HEATING/COOLING TEMPERATURE SENSOR TC N°. 1 TV1 SENSOR HEATING/COOLING CIRCUIT N°. 1 TV2 SENSOR HEATING/COOLING CIRCUIT N°. 5 SENSOR EXTENSION CABLES N°. 1 SAFETY KIT STM UNIT Quantity N°. Description Figure N°. 1 CONDENSATE DRAIN CONNECTION COSMOGAS ecotwin...

  • Page 6: Distributor

    2 - GENERAL INFORMATIONS 2.3 - Distributor 2.6 - Disposal COSMOGAS srl Via L. da Vinci 16 47014 - Meldola (FC) Italia Tel. 0543 498383 Fax. 0543 498393 www.cosmogas.com info@cosmogas.com 2.4 - Key to symbols used The crossed wheelie bin symbol means that the product WARNING!!! must not be thrown away in the ordinary rubbish bin (i.e.

  • Page 7: Hydraulic Connections

    To use this thermostat refer to section 7.2. WARNING !!! The digital thermostat can only be activated if there is a domestic hot water tank (Figure from 5-4 to 5-10). Figure 3-1 - Main components and connection diameters of the GS unit COSMOGAS ecotwin...
  • Page 8 Figure 3-2 - Main components and connection diameters of the STM06 - STM09 unit Electrical connections cover Refrigerant connection Inlet (liquid line): 3/8” Outlet Refrigerant connection (gas line) : 5/8” Valve cover Figure 3-3 - Main components and connection diameters of the STM13 unit COSMOGAS Ecotwin...

  • Page 9: Main Components

    32 - High limit safety thermostat 16 - Water flow switch 33 - DHW safety thermostat (max 75°C) 17 - Water connection 35 - Return temperature sensor (TUI) 36 - Control board Figure 4-1 - GS unit internal components COSMOGAS ecotwin...
  • Page 10 13 - Bottom cover 27 - Electronic expansion valve (EEV) 14 - Evapo-condensing battery 28 - Compressor heater 29 - Outdoor temperature sensor 34 - Evapo-condensing battery temperature sensor Figure 4-2 - STM 06 and STM 09 unit internal components COSMOGAS Ecotwin...
  • Page 11 15 - Liquid separator 32 - 4-way valve 16 - Suction temperature sensor 33 - Expansion valve temperature sensor 17 - Compressor discharge temperature sensor 34 - Evapo-condensing battery temperature sensor Figure 4-3 - STM 13 unit internal components COSMOGAS ecotwin...

  • Page 12: Operation

    ° C below zero) if the heating circuit is protected with suitable antifreeze and electrically powered in such a way as to allow the electric heater to intervene (detail “8” in Figure 4-1). These protections only cover the device and not the system. COSMOGAS Ecotwin...

  • Page 13: Available Head To The Heating / Cooling System

    When sizing the system, the installer must take into account these available head values to run the correct water flow. Minimum Available head water flow Model 1044 1548 2196 Figure 5-1 - Water flow and available head of the heating/cooling system COSMOGAS ecotwin...
  • Page 14 22 - Heating system 10 - Plate heat exchanger 23 - Liquid separator 11 - Outdoor temperature sensor 24 - Liquid receiver 12 - Evapo-condensing battery temperature sensor 13 - High pressure switch Figure 5-2 - Functional schematics COSMOGAS Ecotwin...
  • Page 15 48 - 3-way diverter valve DHW/cooling-heating 49 - GS unit pump 50 - Electrical resistance 230 V/50 HZ P = 3 kW 51 - Plate heat exchanger 52 - Refrigerant gas line 53 - Indoor unit Figure 5-3 - Hydraulic diagram COSMOGAS ecotwin...

  • Page 16: Ecotwin With One Heating/Cooling Circuit And Dhw

    5 - OPERATION 5.3 - Ecotwin with one heating/cooling circuit and DHW LEGEND of Figure 5-4 and 5-5: 24 - DHW temperature sensor (Tw) 1 - Main electrical supply 27 - Filter 2 - Internal electrical resistance (3 kW) 28 - Differential by-pass valve...

  • Page 17: 1- Configuration For One Heating/Cooling Circuit And Dhw

    10 l / kW of unit power. For example, in the case of the Ecotwin 09 unit (heat output 10 kW), the amount of water circulating in the system must be at least 10 l / kW = 100 liters.

  • Page 18: Ecotwin With One Heating/Cooling Circuit, Dhw And A Buffer Tank

    5 - OPERATION 5.4 - Ecotwin with one heating/cooling circuit, DHW and a buffer tank LEGEND of Figure 5-6 and 5-7: 22 - Room temperature sensor (Tr) 1 - Main electrical supply 23 - Heating/Cooling thermoregulation sensor (Tc) 2 - Internal electrical resistance (3 kW)

  • Page 19: 1- Configuration For One Heating/Cooling Circuit, Dhw And A Buffer Tank

    “35” (Figure 6-22) whenever the appliance fails to reach the domestic hot water and / or heating set point within a certain period of time. Figure 5-7 - Wiring diagram with one heating/cooling circuit, DHW and a buffer tank COSMOGAS ecotwin...

  • Page 20: Ecotwin With One Heating/Cooling Circuit, Dhw, A Buffer Tank And A Boiler

    5 - OPERATION 5.5 - Ecotwin with one heating/cooling circuit, DHW, a buffer tank and a boiler LEGEND of Figure 5-8 e 5-9: 26 - Connect to terminals “TA” of the boiler 1 - Main electrical supply 27 - Filter...

  • Page 21: Configuration For One Heating/Cooling Circuit, Dhw, A Buffer Tank And A Boiler

    / or the heating set point within a certain period of time. Figure 5-9 - Wiring diagram with one heating/cooling circuit, DHW, buffer tank and a boiler COSMOGAS ecotwin...

  • Page 22: Ecotwin With Double Heating/Cooling Circuit, Dhw, A Buffer Tank And A Boiler

    5 - OPERATION 5.6 - Ecotwin with double heating/cooling circuit, DHW, a buffer tank and a boiler LEGEND of Figure 5-10 and 5-11: 27 - Filter 1 - Main electrical supply 29 - Solar (optional) 2 - Internal electrical resistance (3 kW)

  • Page 23: Configuration For Double Heating/Cooling Circuit, Dhw, A Buffer Tank And A Boiler

    5 ° C lower than the domestic hot water set point as set in the previous step in point 10; Figure 5-11 - Wiring diagram with double heating/cooling circuit, DHW, buffer tank and boiler COSMOGAS ecotwin...
  • Page 24 - Call the boiler as a supplement to heating and domestic hot water production whenever the heat pump fails to reach the domestic hot water set point and / or the heating set point within a certain period of time. COSMOGAS Ecotwin...

  • Page 25: Installation

    6.3 - Minimum clearance distances of GS indoor unit For installation and maintenance, it is necessary to leave free spaces around the appliance as shown in the Figure 6-2. ＞500mm ＞100mm ＞100mm ＞500mm Figure 6-2 - Minimum clearance distances of GS indoor unit COSMOGAS ecotwin...

  • Page 26: Minimum Clearance Distances Of Stm Outdoor Unit

    (Figure 6-4), to prevent the condensation produced by the one positioned above from falling onto the one below. Figure 6-4 - Appliances uncorrect position  All dimensions are in millimeters. 62403796.01.012 Figure 6-3 - Minimum clearance distances of STM outdoor unit COSMOGAS Ecotwin...
  • Page 27 300015_a 1044  All dimensions are in millimeters. Figure 6-5 - STM 06 and 09 outdoor unit dimensions 1124 1058 300015_b  All dimensions are in millimeters. Figure 6-6 - STM 13 outdoor unit dimensions COSMOGAS ecotwin...

  • Page 28: Warnings Before Installation

    WARNING!!! In heating , if the outdoor temperature is above 14 ° C, the machine begins to reduce the power. In cooling, the power is reduced if the outdoor temperature is below 28 ° C or above 41 ° C. COSMOGAS Ecotwin...

  • Page 29: Mounting The Appliance

    (see Figure 6-9). Figure 6-7 - Installation on a raised floor 020031.01.003 Figure 6-8 - Mounting the drainage fitting A - Drain with siphon B - Condensate drain connection Figure 6-9 - Condensate drain connection COSMOGAS ecotwin...

  • Page 30: Installation In Cold And Snowy Areas

    10 defrost function. l / kW of unit power. For example, in the case of the Ecotwin  In areas characterized by heavy snowfall, raise the 09 unit (heat output 10 kW) the amount of water circulating in protection by at least 200 mm above the average thickness the system should be at least 10 l/kW = 100 liters.

  • Page 31: Radiant Panel Systems (Or Low Temperature)

    It is therefore recommended to use tank with semi-rapid production or tanks with external heat exchanger plate (“freshwater”). In this way the thermal shock against legionellosis can be avoided. Refer to the hydraulic diagrams of Figures from 5-4 to 5-10. COSMOGAS ecotwin...

  • Page 32: Distances Between Indoor And Outdoor Unit

    Maximum height difference between indoor and outdoor unit Distance between one siphon and the mount a siphon every 3 meters in height. other Siphon height 100 - 150 mm Figure 6-10 - Distances between outdoor and indoor unit COSMOGAS Ecotwin...

  • Page 33: Wall Mounting Of The Gs Indoor Unit

    6.- Hang the indoor unit on the mounting plate. Make sure it hangs well before leaving the unit. The wall installation is completed. Figure 6-11 - Support blocks COSMOGAS ecotwin...

  • Page 34: Installation Of The Safety Kit In The Gs Indoor Unit

    (Figure 6-12). Drain pipe Inlet Drain pipe Outlet Figure 6-12 - Safety kit installation Safety valve outlet Figure 6-13 - Connection of the drain pipe to the safety valve COSMOGAS Ecotwin...

  • Page 35: Refrigerant Connections

    The radius of the curve pipes must not be less than 10-15 cm. Use a template to check it. Create the curves gradually and carefully, do not use edges to bend the tube. 10 -15 cm Figure 6-14 - Curve of the pipe Figure 6-15 - Pipe insulation COSMOGAS ecotwin...

  • Page 36: Connections For The Refrigerant Gas Circuit

    (mm / inch) conical fitting (mm) (Nm) 6,35 - 1/4” 14 - 18 9,52 - 3/8” 34 - 42 12,7 - 1/2” 49 - 61 15,88 - 5/8” 69 - 82 Figure 6-17 - Tightening torque of refrigerant connections COSMOGAS Ecotwin...
  • Page 37 Figure 6-18 - Refrigerant connection between indoor and outdoor unit LEGEND of Figure 6-19: D - Tap cap C - Outdoor unit charging port E - Vacuum pump F - Vacuum gauge Figure 6-19 - Outdoor unit and vacuum pump connection COSMOGAS ecotwin...

  • Page 38: Checking The Tightness Of The Refrigerant Circuit

    (tightening torque from 20 to 25 Nm); 10.- Check the tightness of the fittings using a leak detector; 11.- Add refrigerant according to the length of the refrigerant circuit, as reported in section 6.16.4. 62403796.01.007 Figure 6-20 - Outdoor unit connection COSMOGAS Ecotwin...

  • Page 39: Refrigerant Addition According To The Length Of The Refrigerant Circuit

    The electrical connections are positioned inside the indoor unit as in Figures 3-1, 6-22 and 6-24 and positioned inside the outdoor unit as in Figures 3-2, 3-3 and 6-24. COSMOGAS ecotwin...
  • Page 40 TV1 sensor “WATER PUMPS” (section 8.2.11) and act on the (detail “20”). parameters relating to “P1”. WARNING !!! Use only mixing valves with 0-10V control. Figure 6-22 - Electrical connections of the indoor unit COSMOGAS Ecotwin...
  • Page 41 “External signal control + outdoor temp.”. If you choose the second option, you must complete the limits of “Outdoor temp.“, as they have priority over external contact. WARNING !!! If both external signals (“17” and “18”) are closed the appliance has no priority and stops. COSMOGAS ecotwin...

  • Page 42: Electrical Supply Connection Of Gs Indoor Unit

    9.- Connect the brown wire (Phase) to the “L” terminal of the indoor unit and to the “L” terminal of the outdoor unit (Figure 6-24). Figure 6-23 - Access to the terminal block of the STM outdoor unit COSMOGAS Ecotwin...
  • Page 43 (24Vdc), they must run in conduits other than the 230Vac power supplies. 230Vac output connection BUS connection Shielded cable : 230Vac electrical connection : BUS connection PE N L Cable clamp Figure 6-24 - Outdoor and Indoor unit connection COSMOGAS ecotwin...
  • Page 44 WARNING !!! As the cables of the room thermostat / chronothermostat are subjected to very low safety voltage (24Vdc), they must run in ducts other than the 230Vac power supplies. Figure 6-25 - Correct position of the room thermostat / chronothermostat COSMOGAS Ecotwin...

  • Page 45: Start Up

    4.- After 6 seconds from the last pressure of the keys, the 2.- Check that the air vent valve is open; value will stop flashing and the new value will be saved. 3.- Vent the heating elements. Figure 7-1 - Digital thermostat COSMOGAS ecotwin...

  • Page 46: Start Up

    - summer / winter remote switching; - automatic switching according to the outdoor temperature; - summer / winter remote switching with outdoor temperature threshold. To choose one of these switching modes, refer to the “Heating / cooling switch” parameter in section 8.2.9. COSMOGAS Ecotwin...

  • Page 47: Use

    Pre-heating mode N/A. Interruption mode Appears when the “ELECTRIC LOCK” is enable (section 8.2.12). Disinfection mode N/A. DHW buffer tank mode If this icon appears, the “Reheating function “(section 8.2.4). Defrost mode Appears when the machine is in defrosting. COSMOGAS ecotwin...
  • Page 48 Q - LED COM R - LED RUN S - Alarm code: If there is an error / alarm, this red band will appear with the name relating to the same alarm. For the list of alarms, refer to section 9. COSMOGAS Ecotwin...

  • Page 49: Settings

    To return to the home page, press the key ZONE 2 Info Home page ZONE 1 DHW STORAGE USER NIGHT LEGIONELLA VACATION WATER PUMPS BACK-UP Info Home page WORKING FLOOR MODE CURING (N/A) ELECTRIC LOCK OTHER REAL TIME DATA OPTIONS Figure 8-3 - Settings Menù COSMOGAS ecotwin...

  • Page 50: Zone 1

    (see the parameter “Set temp. for cooling (fix flow water tempera- Installer °C 7...40 ture)”) High temperature limit (see the parameter “Set temp. for heating (fix flow water tempera- Installer °C 18...60 ture)”) WARNING!!! A temperature higher than 55 ° C can cause malfunctions. COSMOGAS Ecotwin...
  • Page 51 Cooling curve 1 (CC1) Selected - End user Not selected (Enabling or disabling the cooling outdoor reset) Not selected (*)Setting parameters of the heating outdoor reset, refer to Figure 8-6. (**)Setting parameters of the cooling outdoor reset, refer to Figure 8-7. COSMOGAS ecotwin...

  • Page 52: Zone 2

    Cooling curve 2 (CC2) Selected - End user Not selected (Enabling or disabling the cooling outdoor reset) Not selected (*)Setting parameters of the heating outdoor reset, refer to Figure 8-6. (**)Setting parameters of the cooling outdoor reset, refer to Figure 8-7. COSMOGAS Ecotwin...
  • Page 53 - The more the adjustment parameter approaches the real needs of the building, the more comfortable the heating / cooling of the building will be with high energy savings. 350012_a Outdoor temp. 1 Outdoor temperature (°C) Outdoor temp. 2 Figure 8-6 - Heating Outdoor reset COSMOGAS ecotwin...
  • Page 54 8 - USE 350012_b Outdoor temp. 2 Outdoor temperature (°C) Outdoor temp. 3 Figure 8-7 - Cooling outdoor reset COSMOGAS Ecotwin...

  • Page 55: Dhw

    End user Not selected Not selected of Figure 6-22, during the conditioned DHW phase) Selected - DHW Eco operation (Don’t change) Installer Not selected Not selected Outdoor temp. to start DHW ECO operation Installer °C -20...43 (Don’t change) COSMOGAS ecotwin...

  • Page 56: Dhw Storage

    - there are no time bands in which neither of the two functions is inactive; at least one of the two functions must be active for each time band. Figure 8-10 - Sanitary hot water storage timer COSMOGAS Ecotwin...

  • Page 57: Night

    Selected - Anti-legionella program (Don’t change) End user Not selected Not selected Day and time (Don’t change) End user °C 60...75 Setpoint (Don’t change) End user 5...60 Duration (Don’t change) End user 10...180 Finish time (Don’t change) End user COSMOGAS ecotwin...

  • Page 58: Vacation

    Vacation start date (Start date of temperature reduction according to the End user day.m.year 1.1.2015 two previous parameters) Vacation finish date (End date of temperature reduction according to the End user day.m.year 1.2.2015 two previous parameters) COSMOGAS Ecotwin...

  • Page 59: User

    DHW) - WH = In one position I have “domestic water and heating” and in the other position “cooling”. Save settings Installer Load saved settings End user Reset to factory settings Installer Figure 8-15 - Heating/Cooling ON/OFF timer COSMOGAS ecotwin...

  • Page 60: Working Mode

    Outdoor temp. to start heating (Upon reaching this value, the machine waits an hour before End user °C -10...25 restarting). Outdoor temp. to start cooling (Upon reaching this value, the machine waits an hour before End user °C 20...-53 restarting). COSMOGAS Ecotwin...

  • Page 61: Back-Up

    “35” in Figure 6-22 continues to work with its logics) Set outdoor temp. to block the working of auxiliary heater (Enable threshold of the function recalled in the parameter Installer °C -20...30 “Block the working of auxiliary heater (AH) according to outdo- or temp.”). COSMOGAS ecotwin...

  • Page 62: Water Pumps

    Not selected as pump for the cooling circuit only) P2 with high temp. demand (Selection or not of pump “7” in Figure 6-22 Selected - Installer Not selected as pump for the high temperature circuit Not selected only) COSMOGAS Ecotwin...

  • Page 63: Electric Lock

    Tw sensor dropped from its position (N/A) End user Selected - Not selected Not selected Signal for cutting outdoor unit power supply (N/A) End user Selected - Not selected Not selected Constant power supply for outdoor unit below (°C) Installer °C -5...25 (N/A) COSMOGAS ecotwin...

  • Page 64: Other Options

    (Enabling or disabling the frost protection on the second heating Installer Selected Not selected circuit) Mode signal output (N/A) - OFF, Installer - Heating, Cooling - Cooling Mode signal type (N/A) - Normally open, Installer Normally open - Normally close. COSMOGAS Ecotwin...
  • Page 65 Selected - Not selected Not Selected Connection to the server (N/A) Disconnected Connessione to the router (N/A) Disconnected MAC (N/A) 00-00-00-00-00-00 Wifi module IP address (N/A) SSID (N/A) Access code (N/A) ****** Server address (N/A) Service port (N/A) COSMOGAS ecotwin...

  • Page 66: Real Time Data

    Suction temp. - Ts Installer °C Outdoor coil temp. - Tp Installer °C Heat pump accumullated operation time. Installer preserved Installer Fan speed 1 Installer Fan speed 2 Installer Outdoor unit working current Installer Voltage Installer Eeprom version No. Installer COSMOGAS Ecotwin...

  • Page 67: Info

    Td: Compressor supply temperature Tp: Evapo-condensing battery temperature Ambient Temp: Outdoor temperature Figure 8-25 - Page 3 Figure 8-26 - Page 4 8.2.16 - Home page Press this icon to return to the home page. Figure 8-27 - Home page icon COSMOGAS ecotwin...

  • Page 68: Diagnostics

    Check that the external battery works properly. Check that the EEV works regularly. Check that the water temperature is not too high and that the difference between supply and return in cooling is quite low (within approximately 6 ° C) COSMOGAS Ecotwin...
  • Page 69 Check that the compressor is working properly. Check switch that the water temperature is not too high and that the difference between supply and return is less than 8 ° C. COSMOGAS ecotwin...
  • Page 70 Water temperature too high in heating Compressor in heating or DHW production. Check that the “Tc” sensor is connected well mode stopped and that it works correctly. Check that the set temperature is not too high and that the water flow is sufficient. COSMOGAS Ecotwin...
  • Page 71 When the compressor has been running for more than 5 3 way valve position error minutes, if Tw-TUI> 12 (for more than 2 min) in DHW or if Tc-TUI> 12 (for more than 2 min) in heating, the unit will go into error S14 . COSMOGAS ecotwin...

  • Page 72: Maintenance

    - Check the good condition of the electrical connections (Follow section 10.14); OUTDOOR UNIT - Check the status of the fan (Follow section 10.15); - Check the control devices (Follow section 10.16); - Check the operating pressures of the refrigerant circuit (Follow section 10.17); COSMOGAS Ecotwin...

  • Page 73: Check The Water Pressure In The System And There Are No Leaks

    2.- In case of malfunction, proceed with replacing the switch. interventions of the safety and control devices; 2.- Visually check that the control devices do not show signs of corrosion or physical damage; 3.- In case of damage indicated above, replace them. COSMOGAS ecotwin...

  • Page 74: Check The Operating Pressures Of The Refrigerant Circuit

    (refer to Figure 3-1): 1.- Drain the water from the heating circuit; 2.- Access the internal components of the device, following section 10.24; 3.- Extract the pump towards the outside; 4.- Disconnect the electrical wires from the pump body. COSMOGAS Ecotwin...

  • Page 75: Remove The Casing And Access To The Internal Components Of The Gs Unit

    2.- Unscrew the screws that secure the front panel (B) and remove it, so as to be able to access all internal components. Figure 10-2 - Remove the front and upper cover panel COSMOGAS ecotwin...

  • Page 76: Wiring Diagram

    5 - PWM pump 12 - Circuit 1 temperature sensor (TV1) 6 - Pump 13 - Room temperature sensor (Tr) 7 - Digital thermostat max 75°C 14 - Heating/Cooling temperature sensor (Tc) Figure 10-3 - GS wiring diagram COSMOGAS Ecotwin...
  • Page 77 15 - DHW temperature sensor (Tw) 16 - Water flow switch 17 - Supply temperature sensor (TUO) 18 - Return temperature sensor (TUI) 19 - Liquid line temperature sensor (TUP) 20 - Microswitches Figure 10-3 - GS wiring diagram COSMOGAS ecotwin...
  • Page 78 16 - Compressor discharge temperature sensor 17 - Evapo-condensing battery temperature sensor 18 - Outdoor temperature sensor 19 - Suction temperature sensor 20 - Electronic expansion valve 21 - Terminal block (Figure 6-24) Figure 10-4 - STM 06 and 09 wiring diagram COSMOGAS Ecotwin...
  • Page 79 15 - High pressure sensor 16 - Compressor discharge temperature sensor 17 - Evapo-condensing battery temperature sensor 18 - Outdoor temperature sensor 19 - Suction temperature sensor 20 - Electronic expansion valve Figure 10-5 - STM 13 wiring diagram COSMOGAS ecotwin...

  • Page 80: Technical Data

    11 - TECHNICAL DATA Inverter air to water heat pump ECOTWIN GS 06/STM 06 GS 09/STM 09 GS 13/STM 13 Model Main electrical supply V/Hz/Ph 220-240 / 50 / 1 220-240 / 50 / 1 220-240 / 50 / 1...
  • Page 81 11 - TECHNICAL DATA ECOTWIN - Heating efficiency Water inlet/outlet 30/35°C Heating heat output Heating heat output Heating heat output 3,90 3,03 7,50 2,90 8,07 2,90 4,50 3,38 9,60 3,80 10,58 3,51 6,20 3,96 10,10 4,03 12,60 3,90 5,10 4,37...

  • Page 82: 12 -Eu Conformity Declaration

    12 -EU CONFORMITY DECLARATION The undersigned CEO of the company COSMOGAS S.r.l., with registered office in Via L. Da Vinci no. 16 - 47014 Meldola (FC) Italy, DECLARES under its own responsibility that the appliance: SERIAL N° MODEL PRODUCTION DATA...

  • Page 83: Product Fiche

    For mixed heat pump heaters: Load profile declared Energy efficiency of water heating ηwh Daily consumption of electricity Qelec Daily fuel consumption Qfuel Annual energy consumption Annual fuel consumption Contact details COSMOGAS S.r.l. via Leonardo da Vinci, 16 - 47014 Meldola (FC) COSMOGAS ecotwin...
  • Page 84 For mixed heat pump heaters: Load profile declared Energy efficiency of water heating ηwh Daily consumption of electricity Qelec Daily fuel consumption Qfuel Annual energy consumption Annual fuel consumption Contact details COSMOGAS S.r.l. via Leonardo da Vinci, 16 - 47014 Meldola (FC)
  • Page 85 For mixed heat pump heaters: Load profile declared Energy efficiency of water heating ηwh Daily consumption of electricity Qelec Daily fuel consumption Qfuel Annual energy consumption Annual fuel consumption Contact details COSMOGAS S.r.l. via Leonardo da Vinci, 16 - 47014 Meldola (FC) COSMOGAS ecotwin...
  • Page 88 COSMOGAS s.r.l. Via L. da Vinci 16 - 47014 MELDOLA (FC) ITALY info@cosmogas.com www.cosmogas.com...

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