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Thermia Atec Commissioning

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Summary of Contents for Thermia Atec

  • Page 1 Commissioning Atec www.thermia.com...
  • Page 2 Thermia Värmepumpar is not liable or bound by warranty if these instructions are not adhered to during installation or service. The English language is used for the original instructions. Other languages are a translation of the original instructions. (Directive 2006/42/EC)

  • Page 3: Table Of Contents

    Activate the electrical auxiliary heater in Atec Plus and Atec Total ......

  • Page 4: About Documents And Decals

    Commissioning Atec About documents and decals Introduction The following documents are available for this product: ▪ Installation quick guide containing information to install a heat pump. Supplied with the heat pump on delivery. ▪ The Service instructions contain information about the heat pump’s function, accessories, fault tracing and technical data. The in- structions also contain tips and advice that should be followed before a heat pump installation.
  • Page 5 Commissioning Atec 1.3.1 General Warning, danger! Warning, hot surfaces! Read the documentation provided. Warning, moving parts! Warning, risk of crushing injury! Read the documentation provided. Warning, hazardous electrical voltage! 1.3.2 Electrical components Outdoor unit Room sensor Outdoor sensor Hot water sensor...

  • Page 6: Checking Piping And Electrical Installation

    If the amount of water in the heating system is not sufficient, Low Pressure alarms may occur. For Atec Total, also check: Water heater checklist Not OK Bleed valve installed For Atec Standard, also check: External Water heater checklist Not OK Exchange valve installed (factory installed in Atec Plus and Atec Total) VIGFG102 Thermia Värmepumpar...

  • Page 7: Checking The Electrical Installation

    Commissioning Atec Checking the electrical installation Before turning on electrical power, check the electrical installation according to the checklist below Electrical installation checklist Not OK Are circuit-breakers installed? One for indoor unit and one for outdoor unit (not included in the delivery) Are correct fuses installed? See fuse table below Positioning of the outdoor sensor.

  • Page 8: Filling And Bleeding

    Commissioning Atec Filling and bleeding 1. Fill the system with cold water by opening the filler valve, that is on the valve pipe, to a pressure of 1 bar. 2. Open all radiator valves fully. 3. Bleed all radiators. 4. Bleed the outdoor unit. See figure 3.

  • Page 9: Setting Heat Pump Size

    Commissioning Atec Setting heat pump size Setting heat pump size The default heat pump size setting at shipping is NO SIZE (indicated by an asterisk next to the English text). This means that the compressor cannot start and the installer must select a heat pump size before leaving this menu.

  • Page 10: Configuration Of Control System

    Commissioning Atec Configuration of control system Before configuring the control system, the installation must be completed according to the instructions in the preceeding chapters. To avoid alarms during start-up, the outdoor unit must be powered on. Make the settings in the order they appear in the text that follows.

  • Page 11: Activation Of Optimum Circulation (Variable Speed) Pump

    The OPTIMUM option is however not activated from factory. If fixed speed circulation pump is used, which may be the case for Atec Standard, then skip this setting. The following settings are made in the Service Menu. If not already in the Service Menu, enter the Service Menu by pressing and holding left (<) arrow for at least 5 seconds.

  • Page 12: Activate The Electrical Auxiliary Heater In Atec Plus And Atec Total

    If the heat demand is greater than the heat pump’s compressor capacity, the immersion heater engages automatically in operating mode AUTO. Atec Plus and Atec Total has three outputs, IMM. HEAT 1, IMM. HEAT 2 and IMM. HEAT 3 and output can be controlled in five steps.

  • Page 13: Activate Electrical Auxiliary Heater In Atec Standard

    If a single power stage heater is used (on/off heater, can be an oil burner or equivalent), this setting is the appropriate one. The potential free outputs must be used. If a multi power stage heater is installed, use the settings in the chapter above: "Activate the electrical auxili- ary heater in Atec Plus and Atec Total" Thermia Värmepumpar VIGFG102...

  • Page 14: Activate Active Cooling

    Commissioning Atec The following settings are made in the Service Menu. If not already in the Service Menu, enter the Service Menu by pressing and holding left (<) arrow for at least 5 seconds. Use + or – to move up and down in the menu.

  • Page 15: Distribution Circuits

    There are three available mixing valve options: ▪ Mixing valve (Activation, see chapter "Activate the external auxiliary heater in Atec Standard") ▪ Distribution circuit (DISTR. CIRCUIT) 1 ▪...

  • Page 16: Find Start Flow

    Commissioning Atec Find start flow Finding a start flow Finding a suffient flow in order to activate the flow switch can be done in the following ways: ▪ Automatically, using the FIND START FLOW parameter ▪ Manually, setting the the START FLOW CIRC. value for the optimum circulation pump 6.1.1...
  • Page 17 Commissioning Atec If the flow is not OK, measures must be taken to ensure sufficient start flow, for example, install an additional circulation pump or other equipment, such as a buffer tank, that will increase the flow enough. Operation mode Cooling If cooling mode is activated, the result of the flow search may be as follows: ▪...
  • Page 18 Commissioning Atec Start with a high setting, for example 10V. Check that the circulation pump is running by listening, placing a hand on the circulation pump and listen for air in the system. If no flow is registered at 10V, check the system for air and bleed if necessary. See chapter "Filling and bleed- ing".

  • Page 19: Manual Test

    Commissioning Atec Manual test The installation may only be commissioned if the heating system and water heater have been filled and bled. Caution Otherwise the circulation pump can be damaged. Any alarms that may occur in connection with the installation must be fault-traced.
  • Page 20 Test the circulation pump Optimum (variable speed) circulation pump If a fixed speed circulation pump is used, may be the case for Atec Standard, do the test according to the next chapter: "Constant speed circulation pump" Optimum (variable speed) circulation pump is factory installed in Atec Plus and Atec Total. The OPTIMUM option is however not activa- ted from factory.
  • Page 21 Commissioning Atec The OPTIMUM function must be activated. See "Activation of optimum (variable speed) pump" in the chapter "Configuration of control system" In the MANUAL TEST menu: 1. Use + or – to navigate to the CIRC. PUMP entry ▪ Press + to set circulation pump speed. Set a value between 30% and 100%.
  • Page 22 Commissioning Atec Test the auxiliary heater 1. Start the circulation pump by setting the value CIRC.PUMP to: 1 (OPTIMUM not selected), 30-100% (OPTIMUM selected) . 2. Start the auxiliary heater by setting the value of present EXT. AUX. HEAT to 1.
  • Page 23 Commissioning Atec Parameter Meaning Displays the current consumption in Amperes. The set value for MAX CURRENT is shown in brackets. CURRENT Only appears if CURRENT LIMITER is selected in the Service menu. Shows the temperature at the discharge pipe sensor.

  • Page 24: Starting Up

    Commissioning Atec Starting up Now it's time to start the system and do the final settings and adjustments. Starting the system Set the heat pump to the desired operating mode in the menu INFORMATION -> OPERAT. The following operating modes are available:...
  • Page 25 Commissioning Atec Adjusting the speed for the constant-speed pump ▪ Start with maximum speed setting. ▪ Check that the circulation pump is running by listening, placing a hand on the circulation pump and listen for air in the system. ▪ If flow is detected, normally within 60 seconds, decrease the setting until the flow is so low that the F in the default display disap- pears.

  • Page 26: Tuning The System

    Commissioning Atec Tuning the system Tuning the heating system To obtain a heating system balance and obtain an even and comfortable indoor temperature, the heating system may need adjustment according to the example below. The indoor temperature is adjusted by changing the heat curve. The heat curve calculates the supply temperature depending on the outdoor temperature.
  • Page 27 Commissioning Atec 1. Supply temperature (°C) 2. Maximum supply temperature 3. Outdoor temperature (°C) 4. 0°C 5. Value for CURVE is 40°C -2 0 Fig. 6: Graph showing the set value 40 for CURVE. In the event of outdoor temperatures below 0°C, a higher setpoint value is calculated and in the event of outdoor temperatures greater than 0°C, a lower setpoint value is calculated.
  • Page 28 Commissioning Atec 1. Supply temperature (°C) 2. Desired supply temperature 3. Outdoor temperature (°C) -2 0 Fig. 8: Changing the ROOM value changes the heat curve upwards or downwards The relationship of the supply temperature to the outdoor temperature will not be affected.

  • Page 29: Installation Protocol And Customer Info

    Commissioning Atec Installation protocol and customer info Fill in the Installation protocol in the User Guide. After installation and test operation, the customer must be informed about their new heat pump installation. In the User guide there is a checklist regarding the information that the installer must give the customer.

  • Page 30: Important Information/Safety Regulation

    Commissioning Atec Important information/Safety regulation 11.1 General safety precautions Risk of personal injury! Children are not permitted to play with the product. Warning Caution The heat pump must be installed by authorised installation engineers and the installation must follow the applicable local rules and regulations as well as these installation instructions.

  • Page 31: Refrigerant

    Commissioning Atec Cold and hot water pipes and overflow pipes from safety valves must be made of heat resistant and corro- Caution sion-resistant material, for example copper. The safety valve overflow pipes must have an open connection to the drain and visibly flow into this in a frost-free environment.

  • Page 32: Electrical Connection

    Draining and refilling must only be carried out using new refrigerant (for the amount and type of refrigerant see manufacturer’s plate) through the service valves. All warranties from Thermia are void if, when filling with refrigerant other than Thermia Värme AB specified Caution refrigerant, if there has not been written notification that the new refrigerant is an approved replacement re- frigerant together with other remedies.

  • Page 33: Commissioning

    Commissioning Atec 11.5 Commissioning The installation may only be commissioned if the heating system and brine system have been filled and bled. Caution Otherwise the circulation pumps can be damaged. If the installation is only to be driven by the immersion heater during the installation, ensure that the heating Caution system is filled and the brine pump and compressor cannot be started.
  • Page 34 Commissioning Atec VIGFG102 Thermia Värmepumpar...
  • Page 35 Commissioning Atec Thermia Värmepumpar VIGFG102...
  • Page 36 All trademarks in this material are property of the respective companies. Thermia Värmepumpar and the Thermia Värmepumpar logotype are trademarks of Danfoss A/S. All rights reserved.

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