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Summary of Contents for Oilon ECO Inverter+ 7-25 07 EasyAce
- Page 1 M8003 2415EN 11 April 2024 Installation and commissioning manual ECO Inverter+ 7-25 EasyAce...
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Page 3: Table Of Contents
Contents Introduction Heat pumps covered in this manual..............5 Instructions and diagrams.................. 5 Safety notice and warnings................5 Decommissioning....................8 Disposal of refrigerant..................8 Transportation and storage................9 Scope of delivery....................9 Accessories.......................11 Installation Installation site....................15 Dimensions, connections, and components.............16 Electrical connections, covers, and cable management........18 Fuses........................ - Page 4 Brine circuit and brine pump settings.............. 40 Final settings....................40 4.10 Design outdoor temperature................41 4.11 Troubleshooting....................41 Operation Heat pump operation..................43 Technical data Heat pump technical data................45 Compressor units..................... 45 Performance data..................... 46 Operating conditions..................48 Pumps.......................50 4 (52) M8003 2415EN...
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Page 5: Introduction
1 Introduction 1.1 Heat pumps covered in this manual Heat pump models with EasyAce Item code Refrigerant control ECO Inverter+ 7–25 07 EasyAce ECOINVERTER7-2507 R-410A 1.2 Instructions and diagrams Document Designation (item code) Installation and commissioning manual M8003 (34793615*) This manual Electric diagram 110894 (34793613) Piping diagram... - Page 6 Pay attention. The NOTICE symbol indicates a risk of damage to the equipment, components, or surroundings. The ‘i’ (info) symbol indicates important information as well as useful tips and hints. Keep these instructions as well as the electrical diagrams available near the device. Only trained personnel may service the heat pump’s refrigerant circuit, adhering to all local regulations and requirements.
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Page 7: Safety Devices
The refrigerant is heavier than air. The refrigerant may accumulate in enclosed spaces, especially at or below the floor level (for example, in basements). Ventilate the spaces by opening the space’s doors and windows from the outside. Use fans, if necessary. Do not enter any space where you suspect there to be leaked refrigerant present. -
Page 8: Decommissioning
1.4 Decommissioning Heat pump systems must be decommissioned in accordance with applicable laws and regulations. Heat pumps include materials and substances that require special care, including: ● Refrigerant ● Oil ● Electrical components ● Other materials The specific considerations for each substance or material are described in the following sub-sections. -
Page 9: Transportation And Storage
Refrigerant Details R410A Mixture of difluoromethane and pentafluoroethane Refrigerants should be recycled, or disposed if recycling is not possible, by a service provider duly authorized to do so pursuant to local laws and regulations. Certain refrigerants have a high global warming potential (GWP) if released into the atmosphere. -
Page 10: Sensors And Actuators
Item Item code Description Outdoor temperature 36217543 sensor TE0 Connect to cable TE01–W1 Brine pump (evaporator 34023075 Wilo Stratos Para 25/1-12 0–10 V pump) P101 Heating pump 34023129 Grundfos UPMXL 25-125 PWM (condenser pump) P201 Power cable for 34024467 heating pump P201 Domestic hot water tank 36217266 Already connected to switchgear... -
Page 11: Accessories
Position Description ECO Inverter+ Heating circuit 1 TE212 supply temperature P211 Heating circuit 1 pump FV212 Heating circuit 1 mixing valve TE213** Room temperature 1 HEATING CIRCUIT 2* Heating circuit 2 TE222 supply temperature P221 Heating circuit 2 pump FV222 Heating circuit 2 mixing valve TE233 Room temperature 2... - Page 12 Accessories Accessory Auxiliary controller with enclosure Item code 32586192 Description An enclosure containing an auxiliary controller for regulating heating circuit 2 and 3 or increasing the number of I/O slots for different functions. Installed on top of the heat pump unit. 24 V input from the heat pump, 230 V input from the building’s distribution board.
- Page 13 Accessory 3-way control valve for heating circuit, DN25-10 Actuator 36962089, 36962220 Accessory 3-way control valve for heating circuit, DN25-6.3 Item code 34034067 Description Esbe VRG131 11601100, DN25, Kvs 6.3, Rp 1" Actuator 36962089, 36962220 Accessory 3-way control valve for heating circuit, DN20-4 Item code 34034467 Description...
- Page 14 Accessory Change-over valve Belimo DN32 Purpose To switch heating water flow between buffer tank and DHW tank Actuator 36962268 Accessory Actuator for Belimo DN32–DN50 change-over valves Item code 36962268 Description Belimo SRD230A. AC 100–240 V, open/closed, 3-point, 20 s Purpose Actuator for Belimo change-over valves Valve 34034600, 34034601, 34034602...
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Page 15: Installation
2 Installation 2.1 Installation site Site planning and selection ● Install the unit and the associated equipment in a warm, dry place. ● The installation site’s ambient temperature must be within +5...+40 °C (non- condensing). ● No condensate should accumulate onto the unit’s components from ambient air (non-condensing atmosphere). -
Page 16: Dimensions, Connections, And Components
Floor drain The unit’s installation site must have a floor drain. The site’s floor should be inclined so that any runoff from the unit leads towards the drain. 2.2 Dimensions, connections, and components ECO Inverter+ main parts ver. 2 Pos. Item Description Brine circuit side (evaporator) - Page 17 Dimensions D077614 ECO Inverter+ ver. 2 Heat pump ECO Inverter + 7–25 Heat pump BI/BO Ø WI/WO Ø DF ECO Inverter ISO 228/1- ISO228/1- + 7–25 G1 1/4 B G 1 1/4 B M8003 2415EN 17 (52)
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Page 18: Electrical Connections, Covers, And Cable Management
2.3 Electrical connections, covers, and cable management Accessing electrical connections Keep the switchboard cover (TC) closed and the screws fastened at all times. Remove the cover (TC) only when performing electrical installation work or accessing fuses. To avoid water damage, keep the cover closed and the screws fastened when filling or bleeding the system’s circuits (brine circuit, heating circuit, or domestic water circuit). -
Page 19: Outdoor Temperature Sensor
To check the fuses, remove the top cover (TC) fastening screws (Torx T25, 4 pcs.), and open the top cover. Fuses Marking Function ECO Inverter+ 7–25 Default Upon delivery Compressor fuse Control fuse (automation system fuse) Heating pump (condenser pump) P201 Brine pump (evaporator pump) P101 2.5 Outdoor temperature sensor The outdoor temperature sensor (TE0) is supplied already connected to its sensor... -
Page 20: Change-Over Valve (Optional)
2.6 Change-over valve (optional) The change-over valve switches heating water flow between domestic hot water heating (position A; when energized) and space heating (position B; when not energized). Pos. Status Flow direction Domestic hot Energized water heating Space heating energized Install the change-over valve as indicated in the electric diagram and the piping diagram. -
Page 21: Brine Pump
● To ensure that the sensor probe remains firmly seated at the bottom of the sensor pocket, secure the sensor cable with a cable gland. The cable can be extended if required. Use a regular insulated copper twin cable for connecting the cable and extending the cable (0.5 mm , length <... -
Page 22: Heating Circuits
3 Heating circuits 3.1 Buffer tank sensor Accessory Temperature sensor NTC10k 5 m Item code 36217266 Description Sensor with flexible cable (length: 5 m), metallic probe (diameter: 6 mm, length: 50 mm), 1xNTC 10 kOhm, 2 wires, B(25/85)=3976, t Intended use Buffer tank temperature TE255 Heating circuit flow temperature TE212, TE222, TE232 ●... -
Page 23: Flow Temperature Sensor For Heating Circuit 1
Install the sensor probe into a sensor pocket designed for 6-mm probes. The sensor pocket needs to extend into the interior of the tank by at least 150 mm. The sensor pocket is available as an accessory, see section Accessories. Commissioning See Heating settings in section Commissioning. -
Page 24: Sensor Cable
● If you do not install the sensor in the flow line, disconnect the sensor’s wires from the heat pump’s switchboard and protect the bare wire ends. ● You can otherwise leave the sensor in place. Install the sensor in the heating circuit flow line as indicated in the piping diagram. Place the sensor in a way that allows it to measure the temperature in the flow line as accurately as possible. -
Page 25: Heating Water Temperature, Return To Condenser
3.3 Heating water temperature, return to condenser The buffer tank sensor (TE255) and the heating water return sensor (TE201) share the same sensor input (B2) and terminal on the terminal block (X3:2). Only one of the sensors can be connected to the terminal block at a time. The unit comes with the buffer tank sensor connected, which means that condenser return temperature measurement is disabled by default. - Page 26 ESBE valve stem ver. 2 The installation guide delivered with the valve includes other connection options. Enabling the control valve Enable the valve from Initial setup settings (see chapter Commissioning) or from Heating settings (see the table below). Enable the valve by selecting Valve control as the setting for the circuit.
- Page 27 In use 0–10 V When the heating circuit requires more heating, the level of the valve control signal is reduced. ● 0 V: valve fully open, 10 V: valve fully closed 3-point The outputs for opening and closing the valve are reversed. ●...
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Page 28: Condenser Pump
Connections for control valve actuator, 0–10 V Accessory Heating circuit control valve actuator, 0–10 V 24 V Item code 36962220 Description Esbe ARA639 12520100 (12520117 OEM), 0–10 V, 4–20 mA, 24 V AC/DC, 3 wires, 15/30/60/120 s 90°, pre-set to 60 s (DIP switch 2 ON), pre-set to OPEN (with increasing signal) counterclockwise CCW (DIP switch 6 ON) Valve 1154330, 1154332, 1154334... -
Page 29: Heating Circuit Pump
● The pump will run at the speed set in the Control high limit parameter (factory setting: 100%). DEVICE SETTINGS → SERVICE → PUMP → CONDENSER PUMP Setting Value Mode for heating Constant speed Mode for hot water Constant speed Control high limit Factory setting: 100% Using temperature difference for pump speed control... -
Page 30: Auxiliary Controller For Additional Heating Circuits
3.7 Auxiliary controller for additional heating circuits The circulation pump and control valve for additional heating circuits often require an auxiliary controller, see Heating circuits 2 and 3. The controller is available as an optional accessory. Accessory Auxiliary controller with enclosure Item code 32586192 Description... -
Page 31: Commissioning
4 Commissioning 4.1 General The heat pump’s automation system is operated with an app installed in a smartphone or tablet. This app is used to connect to the heat pump’s built-in data hub. The unit is supplied with a wireless touch screen preinstalled with the app and with the connection already configured. -
Page 32: Accessing Initial Setup Settings
3. Select Users and roles. 4. Select Service. 5. Enter the password and tap OK. 6. You are now signed in as a service-level user. Return from the menu by tapping the arrow in ● The Service level password is 8520. the top left corner. -
Page 33: Clock
4.4 Clock Clock If the data hub is connected to the internet, the current time is retrieved automatically. If there is no internet connection, set the time by hand. Time zone The current time zone (UTC; 2 h in Finland). 4.5 Heating settings Hot water In use... - Page 34 Heating circuit 1 Direct connection The heat pump is connected directly to the building’s heating system. The system has no circulation pump or control valve that would be controlled by the heat pump. Direct connection with pump (main controller) The system has a circulation pump which is controlled by the heat pump. 3-way valve (main controller) The system has a circulation pump and a 3-way control valve, both of which are controlled by the heat pump.
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Page 35: Adjusting The Heating Curve
Valve controller Circuit 1 flow Currently measured flow temperature Currently used setpoint (based on room temperature measurement or heating Setpoint curve) Valve control gain; determines how much the valve will react to changes in heating Gain circuit inlet temperature. Integration time; the speed at which the valve moves until the temperature target is reached. -
Page 36: Heating Circuits 2 And 3
3. If necessary, tap Heating curve to edit the new heating curve. Change the curve points using the sliders. If you change the maximum flow temperature, tap Preset heating curve again and re-adjust the heating curves. Recommended heating curve adjustments Curve values should be tuned in during the first few heating seasons. - Page 37 Direct connection with pump (ext. controller) The system has a circulation pump which is controlled by the heat pump using an auxiliary controller. 3-way valve (ext. controller) The system has a circulation pump and a 3-way control valve, both of which are controlled by the heat pump using an auxiliary controller.
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Page 38: Curing Concrete Floors With A Heat Pump
4.6.3 Curing concrete floors with a heat pump It is not advisable to use the heat pump to cure floor structures. ● Keep the temperature considerably lower than usual (maximum: +20 °C) before the concrete slab has cured and after the floor has been tiled. ●... -
Page 39: Additional Heating, Hot Water
Additional heating, space heating With compressor (parallel operation) Select this option, if the fuse for the heat pump power supply is rated for running the compressor and the electric heater at the same time. The electric heater will be switched on if: The outdoor temperature is below +5 °C (freezing protection). -
Page 40: Brine Circuit And Brine Pump Settings
Additional heating, hot water After compressor Select this option, if the fuse for the heat pump power supply has an insufficient rating to run both the compressor and the heater at the same time. The electric heater will switch on if: DHW tank temperature is below +5 °C (freezing protection). -
Page 41: Design Outdoor Temperature
Setup finished Hide initial setup Once the commissioning process is complete, hide the Initial setup menu. If menu necessary, display the menu again from the Service menu. 4.10 Design outdoor temperature The information below applies to Finland, and is provided for reference only. Weather zone (in Design outdoor Finland) - Page 42 Problem Potential cause Solution In-line heater does Heater switched off Before changing settings, check that the heat pump (and not operate from settings supply fuse) has been sized so that the heat pump and the heater can operate at the same time. Check from Device settings →...
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Page 43: Operation
5 Operation 5.1 Heat pump operation The system’s connection diagrams are provided as a separate document. The heat pump collects heat from the fluid in the brine circuit and releases the heat collected through a condenser and into heating water.The heat pump can be equipped with an optional in-line heater which acts as a backup for the heat pump’s compressor and, if required, as a supplementary heat source. - Page 44 building’s domestic hot water needs heating, space heating will be suspended until domestic hot water has been heated to a sufficient temperature. Domestic hot water tank heating will start when the DHW tank temperature (minus the switching difference) falls below the domestic hot water target temperature. Domestic hot water heating will stop when the DHW tank has been heated up or the maximum DHW heating time has elapsed.
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Page 45: Technical Data
6 Technical data 6.1 Heat pump technical data The performance between different units may vary. This variation is due to a wide number of factors, such as the properties of the fluids used in the circuits, fouling of the heat transfer surfaces in the condenser and evaporator circuit, flow rates, individual differences between compressors (standard EN 12900) as well as refrigerant circuit charge and adjustments made to the refrigerant circuit during installation. -
Page 46: Performance Data
MODEL / RATED CAPACITY (kW)3~ 400 V, 50 7–25 Hz, PE Hermetically sealed device To be checked periodically for leaks (maximum refrigerant charge: 10 CO -eq t) Refrigerant R-410A Refrigerant’s PED group (EN 378:2016) Refrigerant’s safety class (EN 378:2016) Circuit’s PED category (2014/68/EC) Refrigerant’s GWP value 2088 (global warming potential) - Page 47 B0/W35 B0/W55 Effective electric power input 6.334 8.234 cooling capacity 18.280 14.593 heating capacity 24.188 22.397 COP heating 3.819 2.720 Seasonal performance ECO Inverter+ 7-25 datasheet 1 ver. 2 M8003 2415EN 47 (52)
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Page 48: Operating Conditions
ECO Inverter+ 7-25 datasheet 2 ver. 1 6.4 Operating conditions The unit’s operating condition range is provided below. The unit has been designed for use within the specified conditions. The unit’s performance cannot be guaranteed outside the recommended conditions. Brine temperature may exceed the maximum values momentarily during the start-up phase. -
Page 49: Operating Envelope
compressor’s rotation speed as well as the evaporator and condenser temperature. If the unit’s output temperature exceeds +60 °C, the system will limit the compressor’s speed in steps. At the highest output temperature (+68 °C), compressor speed and heating capacity are kept at approximately 75% of the unit’s maximum speed and power. -
Page 50: Pumps
6.5 Pumps Condenser circuit pump Oilon designation Pump Description 1-phase, wet-motor, G 1 1/2 outer Grundfos UPMXL (GEO) 25–125 180 34023129 thread, installation dimension 180 mm, inverse PWM, 3–180 W (0.04–1.42 A) The bold ascending curve in the diagram indicates the unit’s condenser circuit pressure drop as a function of flow rate. - Page 51 Brine circuit pump curve, ECO Inverter+ ECO Inverter+ brine pump curve ver. 1 X-axis: Flow rate, m /h. Y-axis: pump head, m. 0/−3 °C M8003 2415EN 51 (52)
- Page 52 Contact information of Oilon dealer: OILON GROUP P.O. Box 5 FI-15801 LAHTI FINLAND Tel: +358 3 85 761 Fax: +358 3 857 6239 Email: info@oilon.com www.oilon.com Date of installation:...
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