IVT Greenline HT Plus E Manual To Installation, Commissioning And Maintenance Download

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IVT Industrier AB, Sweden

ranås T

ryck & Media

Summary of Contents for Greenline HT Plus E

Page 1: ...Greenline HT Plus C and E Guide to installation commissioning and maintenance Art no 290410 29 Version 1 1 FOR THE USER FOR THE INSTALLER INDEX ...

Page 2: ...s you actively safeguard the environment We have taken today s demands on heat pumps into consideration and believe that your Greenline HT will give you many useful functions in the future Your heat pump features an advanced control unit that monitors and controls the temperature in the house and contributes towards improved overall economy The heat pump Greenline HT Plus has for example a holiday...

Page 3: ...ng 15 Set the desired room temperature 18 Set the heat pump for extra hot water 18 Heating and hot water settings 19 Read the temperatures on the heat pump 19 Extra functions Customer level 2 21 Menu outline for Extra functions Customer level 2 21 Temperature settings 22 Set extra heat curve with mixing valve 23 Hot water settings 24 Timer control 24 Reading operating times on the heat pump and ad...

Page 4: ...ting system 54 Connect heat pump E to the heating system 55 Connect the heat pump to a heating system with bypass 56 Filling water in the heating system 57 Filling the heat transfer fluid in the collector hose 57 Installing the expansion vessel 59 Connecting the heat pump to the power supply 60 Safety switch and earth fault breaker 60 External connections to the heat pump 61 Connecting the general...

Page 5: ...637 includes a control and monitoring function that stores important settings about the heat pump s operation and maintenance The settings are made by the installer and the user via a control panel on the front of the heat pump Settings intended for the user are presented in this chapter under the headings Basic functions and Extra functions When the heat pump has been installed and started there ...

Page 6: ... Double the pres sure and water boils at 120ºC Half the pressure and water then boils at 80ºC The refrigerant in the heat pump acts in the same way the boil ing point changes when the pressure changes However the boiling point of the refrigerant is as low as approxi mately 40ºC at atmospheric pressure Consequently it is also suitable for low heat source temperatures Note Rock heat Soil heat Lake h...

Page 7: ...m 0ºC to approximately 100ºC The warm gas is then forced into the condenser The condenser is the heat pump s heat emitting part Here the heat is transferred to the house s heating system radiators and floor heating and the hot water system The vapour is cooled in the condenser and becomes fluid The pressure in the refrigerant is still high when it is led on to the expansion valve The refrigerant p...

Page 8: ...ext information three buttons and a dial Electrical box The distribution box is enclosed It houses a reset function for the motor cut out as well as miniature circuit breakers MCB for the heat pump and electric cassette Heat transfer fluid pump The pump is insulated and features an anti corrosive finish It ensures the heat transfer fluid circulates from e g the rock to the heat pump Control unit T...

Page 9: ...ulates from e g the rock into the heat pump Control unit The control unit is enclosed It controls and monitors all heat pump functions Expansion valve Lowers the pressure of the refrigerant that enters the evapora tor and collects energy from e g the rock Sight glass Sight glass to check the level in the refrigerant circuit Air bubbles must not form in the sight glass when the heat pump is running...

Page 10: ...n the heat pump can once again manage heating on its own the additional heat is automati cally disconnected Hot water is given priority over heating water In a house with water based heating a difference is made between heating water and hot water The heating water is for radiators floor heating and hot water is for showers and taps Hot water is heated in a hot water heater The hot water heater is...

Page 11: ...l become warmer You determine the temperature of the radiators in relation to the outdoor temperature with the help of a number of settings such as selecting the heat curve on the control unit A lower curve gives higher energy savings Control with an outdoor sensor supplemented with room sensor Control with an outdoor sensor supplemented with a room sensor means that you also place a sensor in a c...

Page 12: ... Lamp on The heat pump is using additional heat from an electric cassette Hot water status Lamp on The heat pump is heating water in the heater Lamp flashes The heat pump has a hot water peak or is producing extra hot water Alarm status Lamp flashes A fault has occurred in the heat pump Lamp on The alarm has been acknowledged but the fault remains Temperature Temperature Pressing once gives a shor...

Page 13: ...s depending on which window you are currently in Example If from the initial menu you press the Heat button you will access the menu Temp incr decr In this menu you can increase and decrease the heating in the house Note that the significance of the buttons has now changed You can either return to the initial menu by pressing the Return button or you can choose to change the heating setting in the...

Page 14: ... for add hot water 2 1 Page 18 Main menu Monitor all temperatures 3 Page 19 Temperature readings Return radiator GT1 Temperature readings Out GT2 Temperature readings Hot water GT3 Temperature readings Shunt flow GT4 Temperature readings Room GT5 Temperature readings Compressor GT6 Temperature readings Heat trfluid out GT8 Temperature readings Heat tr fluid in GT9 Temperature readings Ht trfld col...

Page 15: ...d by the outdoor temperature When the weather becomes colder the heat pump ensures more heating is produced automatically Return temperature The return temperature is the temperature of the water that returns to the heat pump from the radiators The water led out from the heat pump to the heating system is normally 7 10ºC higher than the return temperature When the outdoor temperature is 10ºC and c...

Page 16: ...a ture of 35ºC when it is 0ºC outdoors If the outdoor temperature drops we can see that the return temperature increases The colder the outdoor temperature the higher the return temperature At an outdoor tempera ture of approximately 30ºC we see the curve slope has nearly reached the limit value 57ºC for the return temperature You should wait at least two days when increasing or decreasing the hea...

Page 17: ...urn temperature ºC By using the menu dial on the control panel the fine tuning line has been moved up so the heat pump produces more heat In warm weather above 5ºC If you are not satisfied with the indoor temperature when it is warmer than 5ºC outdoors you should offset the curve in the Temp fine tune menu This is what to do 1 Press the Heat button in the initial menu 2 Turn the menu dial clockwis...

Page 18: ... to set the required room temperature with the help of a connected room sensor The range is 10ºC to 30ºC Set the heat pump for extra hot water You can obtain extra hot water by temporarily increasing the temperature of the water in the hot water cylinder This may be appropriate when for example a large number of people need to shower You choose how long the function should run using the Extra DHW ...

Page 19: ...n the heat pump Each sensor plays an important part in the heat pump s daily operations It may for example adjust the heating production so that the pump does not become overheated Proceed as follows to read the temperatures on the heat pump 1 Press the Menu button in the initial menu 2 Turn the menu dial clockwise until you reach the menu Here you can monitor all temperatures menu 3 3 Press the S...

Page 20: ...nu only applies together with a room sensor The menu shows the set point value and present temperature in the room where the sensor is fitted The menu shows the compressor s working temperature The temperature varies between 70ºC and 125ºC during operations The menu shows the temperature of the radiator water as it leaves the heat pump It varies depending on the outdoor temperature and whether the...

Page 21: ...er level 2 The menu display is standard on all heat pumps The menu display is only shown on the heat pump in combination with an extra sensor or for a specific model of Greenline HT Plus Heat curve adjust break 1 3 Page 22 Main menu Indoor temperature settings 1 Page 23 Mix valve incr decr range 0 10 1 5 Page 23 Mix valve fine tune range 10 10 1 6 Page 23 Adjusting mix valve curve break 1 7 Page 2...

Page 22: ... shown for heat pumps having a room sensor installed The holiday function gives you the possibility to choose a number of days when the room temperature will be lowered to 15ºC the temperature is not adjustable When the days have passed the heat pump returns to the normal heating setting Hot water production is not affected by the holiday function Remote control The menu is only shown for heat pum...

Page 23: ...heat curve Turn the menu dial anti clockwise to choose a lower heat curve 6 Save the new value by pressing the Save button Note The initial position of the floor heat ing circuit is heat curve 2 The scale covers the range 0 to 10 Extra heat curve with mixing valve only works with an extra flow sensor T4 GT4 Fine tune the mixing valve 1 Press the Heat button until Access CUSTOMER2 is displayed 2 Pr...

Page 24: ...ect the weekday with the symbol Turn the menu dial clockwise one step to activate the start day The weekday now has a capital letter 4 Press the right hand arrow until the cursor reaches the first two zeros 00 Extra functions Customer level 2 Hot water settings Hot water peak Recurring increase in the hot water temperature The Interval for hot water peak is used to set the interval for a recurring...

Page 25: ...rvals Clock setting DHW accord to clock menu 4 3 The Clock setting of hot water according to clock works in exactly the same way as Clock setting of heat pump according to clock You can choose to completely disable hot water heating to save energy This is primarily effective when peak tariffs are charged The procedure is the same as in the previous example Use this to make your settings The menu d...

Page 26: ... since the day of installation Additional heat s hot water mode and heating mode operations as a percentage The menu shows the heat addition s allocation between hot water mode and heating mode The allocation is stated as a percentage Set the time and date The heat pump has functions that are dependent on both the clock and date Thus it is important that these are correct This is how you access th...

Page 27: ...in chronological order Read more about the heat pump s alarms under the heading All alarms Return to the heat pump s factory settings If you want to restore the factory settings on the heat pump you can easily reset all the settings you have made This is how you access the Return to factory settings menu menu 12 1 Press the Heat button until Access CUSTOMER2 is displayed 2 Press the Menu button 3 ...

Page 28: ...heat pump 1 Unscrew the two screws on the top See the picture 2 Tilt the front cover towards you 3 Lift the front cover up to release the lower edge Sight glass Sometimes when the heat pump has started you can see the fluid in the refrigerant circuit bubble for a few minutes in the sight glass This is completely normal However if it bubbles continuously you should contact your dealer Warning For r...

Page 29: ...aler filling can take place as set out below The heat pump must be operational all the time while filling 1 Remove the cover on the valve on top of tank Now carefully open the valve figure 1 2 Check that the valve is fully open figure 2 3 Fill with anti freeze or water to 2 3 with the help of a clean watering can or the like figure 3 4 Close the valve and finish by screwing on the cover figure 4 m...

Page 30: ...y before contacting your dealer Particle filter The task of a particle filter is to ensure no particles or dirt enter the heat exchangers Over time the filter can become clogged and will need cleaning There are particle filters on both the hot and cold sides To clean the particle filters 1 Shut down the heat pump using the ON OFF button 2 Close the valve and unscrew the sealing cap 3 Loosen the ci...

Page 31: ...ke sure you do not set the heat curve too high Use your heating system in the best possible way by keeping the entire surface of radiators or floor coils warm 1 Seal windows and doors but not too tight 2 When you air the room do it quickly and with a cross draught Opening thermostat valves completely The thermostat valves on radiators and floor coils can have a negative effect on the heating syste...

Page 32: ... several alarms have occurred on the heat pump turn the menu dial clockwise to find out more information about each alarm Cause Date when the alarm occurred Time when the alarm occurred Info Acknowledge Dimmed menu display Possible cause 1 Blown fuse in the house s fuse box distribution box Action 1 Check the fuses in the house s fuse box 2 Replace the fuse if necessary If miniature circuit breake...

Page 33: ...out HTF pump Compressor temperature Low pressure switch High pressure switch Electric cassette Power failure Phase incorrect High return to the heat pump Heat tran f out max High HTF delta Sensor fault Heat transfer fluid in under limit and heat transfer fluid out under limit List of all alarms All Alarm An alarm can sometimes occur temporarily due to various reasons However there is never a risk ...

Page 34: ...ut out HTF pump MB2 Not models C11 E11 E14 and E17 Possible cause 1 The HTF pump is blocked due to contamination Action 1 Press the Ackn button 2 Loosen the venting screw and remove the dirt 3 Help to start the pump with a screwdriver The alarm indication goes out even if the fault has not been rectified Possible cause 2 Faulty electric motor on HTF pump Action 1 Contact your dealer Possible cause...

Page 35: ...r dealer Possible cause 4 The HTF pump has stopped or is set at too low a speed Action 1 Press the Ackn button 2 Check that the pump has not stopped or is set at the wrong speed Possible cause 5 Ice formation in the heat exchanger due to a lack of anti freeze in the heat transfer circuit Action 1 Contact your dealer Possible cause 6 Faulty expansion valve the alarm appears in time periods of 3 4 w...

Page 36: ... Note Electric cassette EK Possible cause 1 The electric cassette s miniature circuit breaker has tripped Action 1 Press the Ackn button 2 Reset the miniature circuit breaker button on the heat pump circuit breaker 3 by pushing up the toggle switch 3 Contact your dealer if the miniature circuit breaker trips again Possible cause 2 The electric cassette s overheat protection has tripped Action 1 Pr...

Page 37: ...se 2 Phase sequence to the heat pump is incorrect The alarm may only be rectified by an electrician Action 1 Press the Ackn button 2 Switch the phase sequence on the incoming supply The heat pump starts automatically once the phase sequence has been switched High heat distribution system delta T8 T9 GT8 GT9 The heat pump gives an alarm when the temperature difference between the sensors T8 GT8 and...

Page 38: ... the radiators becomes too high The limit lies at approximately 58ºC Possible cause 1 The heating setting is too high Action 1 Lower the heating setting Temp incr decr Possible cause 2 The valves on the radiators or floor heating system are closed Action 1 Open all valves 2 Press the Ackn button Possible cause 3 The hot water temperature is set too high Action 1 An alarm is given in hot water mode...

Page 39: ...oundwater circuit Action 1 Contact your dealer Sensor fault All sensors connected to the heat pump can give an alarm when defective In the example to the right it is sensor T1 GT1 Return radiator which has given an alarm All sensors give alarms in the same way Read more about the sensors under heading All the temperature sensor menus Possible cause 1 Temporary error Action 1 Wait and see Possible ...

Page 40: ...ect all notes and warning texts Note It is important that as the installer you also read through the For the User section of the manual Here you will find the information necessary to get a comprehensive understanding of the heat pump Contents Important information to the installer Checklist What the shipment includes The heat pump and collector hose in general Measurements and electrical connecti...

Page 41: ...ed out in accordance with Normbrunn 97 Standard for Energy wells or the like Checklist Each heat pump installation is unique However the following checklist will give you a general description of how the installation should be carried out 1 Place the heat pump on a flat surface Adjust the height using the rubber feet 2 Check that the bore hole for the collector hose has been bored according to app...

Page 42: ...o 142 021 Return sensor T1 GT1 Quantity 1 Cable 4 m Art no 240 693 Drain plug Quantity 1 Art no 051 701 70 Particle filter with screen No of Greenline HT Plus C 1 art no 142 020 1 art no 142 025 No of Greenline HT Plus E 1 art no 142 025 Outdoor sensor T2 GT2 with cable Quantity 1 Art no 240 690 Rubber feet Quantity 4 Art no 381 007 Ball valve Quantity 1 Art no 153 012 Safety valve Quantity 1 Art ...

Page 43: ... 240 356 471 538 Electrical connections Return radiator Flow radiator Cold water in Hot water out HTF coll in HTF coll out 506 398 123 218 471 183 345 517 165 464 554 569 HT Plus E 105 310 505 596 387 266 211 Electrical connections 1520 Return radiator Flow radiator Return HWH Riser HWH HTF coll out HTF coll in 365 455 321 447 482 569 Dimensions and connections 1 2 3 4 5 6 5 6 3 4 2 1 1 2 3 4 5 6 ...

Page 44: ...e the heat pump is installed The floor drain ensures any water is easily transported away if leakage should occur Maximum working temperatures The heat pump can work at a maximum return water temperature of approximately 57ºC If the temperature rises above this value the heat pump will stop for reasons of safety The maximum outgoing temperature to the heating system is around 65 C However even hig...

Page 45: ...sing a straight coupling Maximum length of the collector hose The maximum length of the collector hose is based on the heat carrier pump s pressure setting We recommend a heat transfer fluid consisting of max 29 per cent ethanol by volume and water Ethanol has good envi ronmental and technical properties even at low temperatures and should therefore be used instead of other heat transfer fluids No...

Page 46: ... or rock collector Insulation from the wall Example of the collector through the wall from the side Example of the collector through the wall cross section Collector in the ground C C 800 1000 mm C C 800 1000 mm Filling of stone free soil approximately 100 mm around the collector hose Collector PEM 40 x 2 4 PN 6 3 200 mm The heat pump and collector hose in general Note Non inflammable pipe materia...

Page 47: ...ion vessel are connected to the collecting pipe A safety valve is connected to the outgoing pipe The safety valve leads off any overpressure One circuit at a time is filled with heat transfer fluid Keep the valves closed in the other loops during the process Read more about filling under the headings Connecting the heat pump to the heating system Filling water in the heating system and Filling the...

Page 48: ...transfer fluid pipes on the heat pump from above they can be fitted from the side side installation Both the right and left hand sides are prepared for side installation The following pages describe side installation Side installation should be done before the heat pump is positioned in its final installation location The heat transfer fluid pipes are fitted for top installation when the heat pump...

Page 49: ...right hand side installation figures 4 and 5 Follow the measure ments given in figures 6 and 7 5 Solder on a solder elbow and a straight piece of copper tube You can use the piece left over from cutting the heat transfer fluid out pipe as the straight piece Note Do not use compression ring couplings to secure the solder elbow on the copper pipe Compression ring couplings require more space and spa...

Page 50: ...er joint and piece of straight copper tube Use the material left over from cutting 6 Cut the heat transfer fluid out as in figure 5 Follow the meas urements in figure 7 Solder on a solder elbow and a piece of straight copper tube Use the material left over from cutting Note Do not use compression ring couplings to secure the solder elbow on the copper pipe Compression ring couplings require more s...

Page 51: ...Heat is transferred to the heat transfer fluid in the intermediate heat exchanger The water is then pumped to a recharge well The intermediate exchanger is installed in the boiler room or the like The circuit to the heat pump is installed in the same way as described earlier i e with filling unit expansion vessel and safety valve The circuit should also be protected against freezing down to 15ºC N...

Page 52: ...3 Warning If a single phase pump is used it should always be connected with a contactor It must never be connected to the P3 output on the heat pump as this can damage the control unit Connecting the heat pump to the heating system Note Only qualified installers may carry out the installation The installer should observe applicable regulations and our recommendations It is important that all previ...

Page 53: ...uisite for the connection is that a minimum flow of at least 70 of the nominal flow see the table below can be maintained throughout the year The thermostat valves in the heating system should be fully open and in a floor heating system it is necessary for at least half of the coils to be fully open The control unit gives an alarm when the temperature increase exceeds 13ºC in the heating system If...

Page 54: ...ng valve The mixing valve curve must be set lower than the heat curve for the rest of the heating system This extra function is used for example in a floor heating system that requires a lower temperature Connecting the sensors External sensors T1 GT1 and T2 GT2 must always be connected The sensor T4 GT4 is only connected if a mixing valve curve is used The sensor T5 GT5 is connected when the heat...

Page 55: ...he mixing valve curve must be set lower than the heat curve for the rest of the heating system This extra function is used for example in a floor heating system that requires a lower temperature Connecting the sensors External sensors T1 GT1 and T2 GT2 must always be connected The sensor T4 GT4 is only connected if a mixing valve curve is used The sensor T5 GT5 is connected when the heat pump is t...

Page 56: ... of the heating system This extra function is used for example in a floor heating system that requires a lower temperature Connecting the sensors External sensors T1 GT1 and T2 GT2 must always be connected Sensor T3 GT3 is connected if the heat pump is to produce hot water Sensor T4 GT4 is only connected if a mixing valve curve is used Sensor T5 GT5 is connected when the heat pump is to be influen...

Page 57: ...t should have a freezing point of approximately 15ºC The ratio between water and anti freeze can be seen in the tables on the following pages Proceed as follows to fill the collector hose with heat transfer fluid See the illustration on the next page 1 Connect two hoses 1 inch in diameter to both filling valves 1 and 2 One of the hoses should have a submerged pump connected at the other end The su...

Page 58: ...he heat pump Testing the heat pump manually 9 When venting is complete open valve 3 shut valve 2 and shortly after shut also valve 1 Disconnect the hoses and the heat transfer fluid side is ready for operation Note It is an advantage if an overpressure is created in the heat transfer fluid circuit An underpressure damages the expansion vessel and the collector hose Filling and venting valve Expans...

Page 59: ...he circuit if the tank is fitted incorrectly see the figure to the right Wrong Correct Table 2 Mixing ratio in per cent by weight Example A 200 metres of hose type 40 35 with Brinol gives 200 x 0 29 litres Brinol metre 58 litres of Brinol and 200 x 0 71 litres of water metre 142 litres water Hose type 40 35 Hose type 32 28 Anti freeze type Water l Anti freeze l Water l Anti freeze l Ethanol 0 71 0...

Page 60: ...s section Examples of external connections include room and outdoor sensors and mixing valves Safety switch and earth fault breaker Safety switch All heat pumps must be fitted with a safety switch Earth fault breaker If the heat pump is to be connected across an earth fault breaker then a separate earth fault breaker for the heat pump is recommended Comply with applicable regulations Warning The e...

Page 61: ...ed to terminal P1 Return sensor radiator T1 GT1 Must always be connected Connect to terminal GT1 Outdoor sensor T2 GT2 Must always be connected Connect to terminal GT2 Hot water sensor T3 GT3 Connected if the heat pump is to produce hot water Connect to terminal block GT3 X on the terminal card On the C model this sensor is already connected on delivery Mixing valve sensor T4 GT4 Is connected when...

Page 62: ...ifferent functions on the control unit These functions are available from menu 1 13 Remote control heat and menu 5 7 Select external controls The input must be short circuited to activate the function Note that the contact must be potential free Load monitor The load monitor has the task of disconnecting the additional heat in the event of a too high load on the house s main fuse Connect the load ...

Page 63: ...ess SERVICE is shown on the menu display Now press the Menu button 2 The menu display Indoor temperature settings menu 1 is shown 3 Turn the menu dial clockwise to the right until you access the menu Commiss Service for installer menu 5 Now press the Select button 4 Turn the menu dial clockwise until you reach the menu Connected extra sensor in op menu 5 13 Now press the Select button 5 The displa...

Page 64: ... menu 5 6 and quickly restart the heat pump If the heat pump does not start press the Info button to see if a heating demand exists 4 Check the sight glass inside the heat pump during start up Bubbles may appear in the sight glass for a few minutes during start up The bubbles should then stop Bubbles present when the heat pump is running are a fault symptom They are probably due to insufficient re...

Page 65: ... is fully blocked during certain periods of the day Read more under the heading Extra functions Customer level 2 Timer control about how to set the control unit Commissioning Service Make a check of all the functions before you commission the heat pump You can manually start and stop the pumps and valves from the menu Manual operation of all functions Set when the additional heat should be activat...

Page 66: ...delivery the heat pump is set to start and stop with the compressor Select this menu to see the version number of the control unit Confirm the extra sensors T3 GT3 T4 GT4 and T5 GT5 that are connected externally On confirmation the control unit stores information about the sensors to be used Timer readings There are a number of different menu displays to help you check the status of the heat pump ...

Page 67: ...100 In some cases the ramp time open may need to be adjusted to eliminate overexciting the system Ramp time close Here you set the time that you would like the immersion heater to go from 100 to 0 Show connected elec capacity Check how much additional heat per cent has been enabled See more information under the heading Technical information Return to factory settings If you regret your settings y...

Page 68: ...ery the motor cut out setting is determined by a value produced during hot water charging and a stable voltage The recommended motor cut out setting may not always be suitable as the voltage in the mains can fluctuate The setting may therefore from case to case need to be adjusted Adjust the setting using a clip on ammeter when the heat pump is producing hot water For the heat pump to perform at i...

Page 69: ... 9 Mixing valve curve max at GT4 60º 1 10 Setting the room temperature 20º 1 11 Setting the room sensor influence 5 1 12 Setting of holiday function 0 days 1 13 Remote control temperature not active 1 14 Setting of summer disconnection 18º 2 1 Number of hours for extra hot water 0 hours 2 2 hot water peak menu is used not active 2 3 Setting of room hot water temperature 51º 2 4 Setting of DHW hyst...

Page 70: ...ly 400V 3N 50Hz Add heat reconnectable kW 3 0 6 0 9 0 Recommended fuse size depends on electrical additional heat 2 Electric cassette 6 kW Electric cassette 9 kW A 16 16 20 20 20 25 A 20 20 25 25 25 32 Compressor Scroll Refrigerant R407C kg 1 35 1 4 1 5 1 9 2 2 2 3 Connection heating medium Cu 22 22 22 22 28 28 Connection cooling medium Cu 28 28 28 28 35 35 Dimensions E model WxDxH mm 600x600x1520...

Page 71: ...ansion valve 6 8 9 Expansion vessel 29 Extra functions 21 F Factory settings 27 Flexible hoses 8 9 Front cover 28 Fuses 32 33 H Heating water 10 Heat carrier pump 8 9 36 Heat curve 15 Heat distribution system delta 37 Heat pump malfunction 32 Heat transfer fluid 7 38 39 Heat transfer fluid pump 8 9 High heat distribution system delta 37 High pressure switch 36 High return 38 Holiday mode 22 Hot wa...

Page 72: ...set button 8 9 33 Return temperature 15 Room sensor 11 Room sensor influence 22 S Savings 31 Screen 30 Sealing cap 30 Sensor fault 39 Sight glass 8 28 33 Status lamps 12 Summer disconnection 22 T Temperature readings 20 Three way valve 9 Three way valve 8 Tillskott 12 Time 13 26 Timer control 24 W Warm weather 17 Working temperature 35 ...

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