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Summary of Contents for Thermia Legend
- Page 1 Installation Guide Thermia Legend www.thermia.com...
- Page 2 Thermia AB 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)
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Page 3: Table Of Contents
Refrigerant ..............2.1.1 Refrigerant: Additional precautions for Legend with R452B refrigerant ...... - Page 4 Electrical connections ............. 12.1 Legend electrical connections 400V (this label is also fitted on the electrical cabinet of the heat pump) ..
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Page 5: About The Document
Manuals with more extensive information and technical information can be found and downloaded here: www.thermia.com under the tab Partner Login. Important information The instructions contain different warning symbols, which, together with text, indicate to the user that there are risks involved with ac- tions to be taken. -
Page 6: Refrigerant General
For maximum refrigerant charge (max), see type plate on heat pump for refrigerant change. 2.1.2 Refrigerant: General Before breaking into the refrigerant system, or conducting any hot work, please refer to the Service manual, found on www.thermia.com under the tab Partner Login. BWLE01IG0102 Thermia AB... - Page 7 Compliance with national gas and f-gas regulations shall be observed. Service, maintenance and repair such as: breaking into the refrigerant circuit; opening of sealed components; opening of ventilated enclo- sures, shall be performed only as recommended by Thermia and only by competent personnel. Thermia AB...
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Page 8: General Product Information
Installation Guide Thermia Legend General product information Scrapping When the heat pump has reached end-of-life and is subject to scrap- Caution ping, it should be sent to a recycling/treatment facility to ensure cor- rect handling of disassembly, recycling, and disposal. Local rules and regulations related to correct extraction and disposal of refrigerant and compressor oil must be followed. -
Page 9: Maximum Length Of Collectors
Installation Guide Thermia Legend Maximum length of collectors The collector length must be designed for energy extracted from the Caution borehole/ground, which is required for the operation of the heat pump. In the tables below you can see the maximum recommended collector length with regards to the internal brine pump capacity. The tables show maximum recommended collector lengths, calculated for delta of 4. -
Page 10: Overview Image
Installation Guide Thermia Legend Overview image ▪ Hot water ▪ Heating system ▪ Power ▪ Brine Cold and hot water pipes and overflow pipes from safety valves must be made of heat resistant and corrosion-resistant material, e.g. 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 11: Heat Pump Data, Dimensions And Connections
Installation Guide Thermia Legend Heat pump data, dimensions and connections Legend Brine in, 28 mm (left or right) Brine out, 28 mm (left or right) Heating system supply, 22 mm Heating system return, 22 mm Connection for bleed valve, 22 mm... -
Page 12: Legend Duo
Installation Guide Thermia Legend Legend Duo Brine in, 28 mm (left or right) Brine out, 28 mm (left or right) Heating system supply, 22 mm (4-10kW) , 28mm (13-17kW) Heating system and hot water tank return, 22 mm (6-10kW) ,... -
Page 13: Delivery Contents
Installation Guide Thermia Legend Delivery contents Brine pipes (left/right) + couplings Safety Valve 9 bar (hot water) Safety Valve 3 bar (brine) Outdoor sensor Filter ball (heating system) Cable inlets Document holder Grommets Tube insulation for brine pipes Plastic cap... -
Page 14: Transportation, Space Requirement And Recommended Location
Installation Guide Thermia Legend Transportation, space requirement and recommended location Transportation The heat pump must not be transported lying down! Maximum tilt 45 ° Max 45 Legend Legend Duo 130-160kg! 160-190 kg! BWLE01IG0102 Thermia AB... -
Page 15: Space Requirement And Recommended Location
Installation Guide Thermia Legend Space requirement and recommended location Avoid placing the heat pump in a corner or near a bedroom. The surrounding walls can amplify the sound from the heat pump. 300 mm 300 mm 300 mm 30°C 50 mm +5°C... - Page 16 Installation Guide Thermia Legend When the heat pump is in position, remove the transport safety. (If the heat pump should be moved further, put back the transport safety.) Make sure all parts of the transport safety is removed! The heat pump should be placed on a stable floor with a floor well (so any condensation may drain from the condensation hole in the bottom of the heat pump), preferably a concrete floor.
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Page 17: Heating And Hot Water Connections
Installation Guide Thermia Legend Heating and hot water connections Legend Heat pump Heating system supply pipe Heating system return pipe Cold water line Hot water line Mixing valve hot water, with exchange valve: Consider common practise and local regulations Shut-off valve... -
Page 18: Mbh 200, & Legend
Installation Guide Thermia Legend MBH 200, & Legend Heat pump Heating system supply pipe Heating system return pipe Cold water line Hot water line Coil tank Mixing valve hot water, with exchange valve: Consider common practise and local regulations Shut-off valve... -
Page 19: Connection, Brine
Installation Guide Thermia Legend Connection, brine Brine connection, alternatives 1. Left knock-out 2. Right knock-out 3. Top knock-out Equipment set-up for installing Filler cock If the level vessel cannot be installed at the highest point or the thermic expansion of the brine is expected to exceed the volume of the vessel it should be considered to install a pressure ves- sel instead. -
Page 20: General Information For Brine Connection
Installation Guide Thermia Legend General information for brine connection The quick couplings included are tool-free and pushed in place. The coupling locks automatically. Before mounting, check that there are no sharp edges or irregularities on the pipe that could damage the rubber sealing in the couplings and cause leakage. The coupling can be rotated after mounting on pipes. -
Page 21: Alternative 1 (Left)
Installation Guide Thermia Legend Remove knock-out holes to the left, right or on top. Alternative 1 (left) For connection in to the left hand side "knockout holes". 1, Press the quick couplings (delivered with the heat pump) on to the pipes according to the picture. Make sure the coupling reach the 32 mm mark. -
Page 22: Alternative 2 (Right)
Installation Guide Thermia Legend Alternative 2 (right) For connection in to the right hand side "knockout holes". 1, Press the quick couplings (delivered with the heat pump) on to the pipes. Make sure 32 mm the coupling reach the 32 mm mark. -
Page 23: Alternative 3 (Top)
Installation Guide Thermia Legend Alternative 3 (top) For connection in the top "knockout holes". For this option, pipes are not included in the delivery. (Also available as accessory.) 1140 mm 1140 mm Duo: 731mm Duo: 731mm 90° 90° 160° 251 mm... -
Page 24: Sensors And Power Supply
Installation Guide Thermia Legend Sensors and power supply Sensors and power supply Electrical voltage! Warning The connection terminals are powered and can cause life hazards due to electrical shock. All power supplies must be disconnected before electrical installation can commence. -
Page 25: Outdoor Sensor
2. The knock-out holes (that's not used for MBH, if installed) can also be used as lead-in for the sensor cable. Note that the connection of the sensors is marked on the I/O card with "Molex" connections. (No wire terminals) MBH Legend is equipped with factory fitted Molex connections. Thermia AB... -
Page 26: Power Supply 400V Version
Installation Guide Thermia Legend Power supply 400V version 15mm ▪ L1, L2, L3: Internal immersion heater, compressor ▪ L1: Controller and circulation pumps Power supply 230V One feeding, compressor + immersion heater 230v~1N Alternative power supply (no jumpers connected) (factory fitted jumpers) Separate supply for compressor and immersion heater: 1. -
Page 27: Fuse Sizes 400V
Installation Guide Thermia Legend Fuse sizes 400V The internal immersion heater can be limited in the heat pump control Settings for immersion heater in controller can be set different with/without compressor. step 1 = 3kW step 2 = 6kW step 3 = 9kW... -
Page 28: Fuse Sizes 230V
Installation Guide Thermia Legend Fuse sizes 230V The internal immersion heater can be limited in the heat pump control and may be permitted in different steps with/without compres- sor. The table below shows the consumption with the recommended fuse size. (One step is mandatory also with the compressor) -
Page 29: Filling And Bleeding
Installation Guide Thermia Legend Filling and bleeding Filling and bleeding the brine circuit 1. Mix clean water and antifreeze ethanol for heat pump use to the correct freezing point in an clean external container. 2. Use a refractometer to check the freezing point, for the brine collector circuit, -17±2°C. -
Page 30: Commissioning
Installation Guide Thermia Legend Commissioning 10.1 Commissioning Check that all installation steps are done and then turn on the power. The display will light up whit in a few seconds. If any alarms occurs directly at start up (e.g. phase fault), go to alarms section of this manual. -
Page 31: 4Auxiliary Heater
Installation Guide Thermia Legend 10.1.4 Auxiliary heater Auxiliary settings can be set and limited to the fuses and set in different steps with or without compressor. 1. Press for five seconds to open the SERVICE menu. AUX.HEATER MAX STEP 2. Use key to move in the menu. -
Page 32: 6Heating Settings, General
Installation Guide Thermia Legend 10.1.6 Heating settings, general The indoor temperature is adjusted by changing the heat pump’s heat curve and room settings. The heat curve is used for the controller to calculate and make sure that the heat pump supply heating, based on the outdoor temperature. A colder outdoor temperature re- sults in more heat being supplied to the heating system to obtain a pleasant indoor temperature in any weather condition. -
Page 33: 7Adjusting The Heat Curve
Installation Guide Thermia Legend Room adjustment example at room 20 (with heat curve 40) The ROOM value (e.g. 20°) is used to lift or lower the heat curve (keeping the same inclination) with (default) 3 degrees / step. This means that the indoor temperature will change approx 1 degree per step up or down on room value change. -
Page 34: 9Adjusting The Indoor Temperature - Heat Settings
Installation Guide Thermia Legend Parameter Description Used to adjust the heat curve at an outdoor temperature of 0°C. CURVE 0 Used to adjust the heat curve at an outdoor temperature of -5°C. CURVE -5 This function stops all production of heat when the outdoor temperature is equal to, or higher than, the heat stop HEAT STOP value currently set. -
Page 35: Brine Monitoring
Installation Guide Thermia Legend 10.1.10 Brine monitoring In cases where there is a risk that the energy out take becomes too large for the collector (and the borehole becomes too cold), "Brine in monitoring" can be activated in the display. -
Page 36: Activate Manual Test
Installation Guide Thermia Legend 10.1.11 Activate manual test Manual test can be used to test run the heat pump components. At manual test some heat pump controller functions are inactivated. Therefore, don´t set the heat pump into operating conditions that can damage the installation. The installation may only be commis- sioned if the heating system, water heater and brine system have been filled and bled. -
Page 37: Symbol Description
Installation Guide Thermia Legend ▪ COMPRESSOR: In this mode the aux heater is blocked and will never assist. (=e.g. no backup heating in case of alarms and no anti legionella top up heating of hot water). There fore this setting is not recommended for use as a permanent operating mode, or when the property is unattended. -
Page 38: Alarms
Installation Guide Thermia Legend 10.2 Alarms If an event occurs that triggers an alarm this is indicated in the display with the text ALARM and the relevant alarm message. The most common alarm messages are: Message Meaning Air in the heating circuit/hot water tank coil or blocked flow in the heating circuit. Check flow, bleed and run manual HIGH PRES- test and listen for air and run reversing valve for hot water. -
Page 39: Additional Functionality
▪ Reversing valves are 230V type. ▪ The table below is created with the functionality available from display software version 1.50 for the machine profile "Legend". ▪ Max permitted total & single load on 230V relay output (external system pump, brine pump) is 5A. - Page 40 If external aux heater is installed, the supply line sensor placed after aux heater should be connected to connection T3 on I/O card on Legend. When aux heater is activated, the 230V +/- signal (terminals 215/216) can be used to control aux heater shunt (optional &...
- Page 41 Installation Guide Thermia Legend Functionality Required accessory Position numbers used Remark & explanations in schematics Smart Grid/EVU Function available as 408, 409 Smart grid functionality by digital input on terminals 307/308 (compressor standard (Smart grid 1) & 309/310: (Smart grid 2) and auxiliary heater blocked.)
- Page 42 Installation Guide Thermia Legend Functionality Required accessory Position numbers used Remark & explanations in schematics Start internal Function available as Possibility to start internal brine pump by closing connectors brine pump on standard. (Molex con- marked 335 on I/O card. Digital input with Molex connection...
- Page 43 (If only one sensor can be installed, use lower and connect to 311.) Additional do- Connector kit & MBH A connector kit enables adding a MBH Legend hot water tank mestic hot wa- Legend to a heat pump with inbuilt water heater for extra hot water ter tank volume.
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Page 44: How To Set Up Additional Accessories, Functions Etc
Ventilation heat Thermia Vent See homepage for status recovery For more detailed information and supported system solutions see separate instructions for Legend or system solution generator on the web. 11.2 How to set up additional accessories, functions etc. Some f unctions are not activated from factory or automatically by connecting the accessory. In these cases, connect the accessories and then activate the function inthe control system is required before they can be used. -
Page 45: Electrical Connections
Installation Guide Thermia Legend Electrical connections 12.1 Legend electrical connections 400V (this label is also fitted on the electrical cabinet of the heat pump) Outdoor Power supply 400V sensor 15mm 12mm Hot water Hot water Start top sensor lower sensor... -
Page 46: Legend Electrical Connections 230V (This Label Is Also Fitted On The Electrical Cabinet Of The Heat Pump)
Installation Guide Thermia Legend 12.2 Legend electrical connections 230V (this label is also fitted on the electrical cabinet of the heat pump) Outdoor Power supply 230V Alternativ: No jumpers sensor >40A = 10mm² (2x4mm²) Compressor Immersion heater Controller 15mm 12mm... - Page 47 Installation Guide Thermia Legend Thermia AB BWLE01IG0102...
- Page 48 Internet: www.thermia.com Thermia can accept no responsibility for possible errors in catalogues, brochures and other printed material. Thermia reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies.
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