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38

FOR THE INST

ALLER

Important information to the installer!

Checklist

Each installation of the Optima heat pump is unique. However, the following
checklist will give you a general description of how the installation should be
carried out.

1.  Position the heat pump on a solid base.
2.  Install incoming and outgoing pipes for the hot side.
3.  Install the drainage pipe.
4.  Install the particle filter, connect to an external additional heat supply

(electric cassette or electric/oil-fired boiler) and possible hot water
heater.

Warning

For reasons of safety the main power
supply must be disconnected before
working on the heat pump.

!

The Installer section of this manual gives you all the information necessary
to install the heat pumps Optima 1000 and 1300. The section is divided into
several parts. The order of these is based on the recommended installation
sequence from IVT. Use the supplied checklist during installation.

Before you start the installation of the Optima heat pump we would
like to bring the following to your attention:

The heat pump may be temporarily tilted with the compressor
downwards. However, never lay the heat pump down.

Before the heat pump is commissioned, the heat transfer systems
including the heat pump must be filled and vented.

Check that plumbing connections are intact and have not shaken loose
during transport.

The heat pump is equipped with the control unit Rego 603. When the
heat pump is commissioned the control unit must be set for the selected
operating mode. Read more about the settings in

Commissioning the heat

pump.

The control unit Rego 603 measures the phase sequence and gives an
alarm if the power supply has been connected incorrectly. The correct
phase sequence is necessary for the fan to run in the right direction.

If Optima is used in a system with a fan-assisted radiator, the water
volume in the system is very small. During defrosting the heat pump
takes some of its energy from the heating system. This means the heating
system will cool down. It is therefore

ver y important

that the fans in the

fan-assisted radiators run during defrosting alternatively are connected to
a cylinder of approximately 100 litres.

Wiring should be kept as short as possible to protect the system from
downtime, for example during a thunderstorm.

The heat pump installation must follow applicable regulations.

Note

During defrosting, the air from the
fan-assisted radiator may seem cold.
This is perfectly normal.

Note

Only qualifi ed installers may carry
out the installation. The installer must
follow to applicable regulations and
recommendations from IVT.

Important information to the installer / Checklist

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Содержание Optima 1000

Страница 1: ...Optima 1000 1300 Assembly Commissioning and Maintenance Guide Art no 290548 29 Version 1 3 FOR THE USER FOR THE INSTALLER INDEX ...

Страница 2: ...ation and believe that your Optima 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 Optima has for example a holiday function that s to say the heat pump can be set at a low level while you are away on holiday This guide has been w...

Страница 3: ...sic functions Customer level 1 14 Select scrolling information on the menu display 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 Timer ...

Страница 4: ...ting the heat pump to the power supply 46 Accessories 46 Safety switch and earth fault breaker 46 Assembly drawing electric cabinet 47 Circuit diagram the Optima heat pump 48 External terminal diagram heat pump operating mode A 49 External terminal diagram heat pump operating mode B 50 External connections on the heat pump operating mode A 51 External connections on the heat pump operating mode B ...

Страница 5: ...c functions and Extra functions When the heat pump has been installed and started there are a number of points you should check regularly This may concern an alarm triggering or performing basic maintenance actions Initially you should perform these actions on your own This manual describes each step in detail If the problem remains you should contact your dealer Important information for the user...

Страница 6: ...ure the higher the boiling point For example water boils at 100ºC at normal pressure Double the pressure 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 boiling point changes when the pressure changes However the boiling point of the refrigerant is as low as approximately 40ºC at atmospheric pressure Consequently it ...

Страница 7: ...gy is emitted in this process to the heating system or hot water After the condenser the refrigerant which is now in liquid form continues through a drying filter The drying filter is used to collect any moisture in the system After the filter the refrigerant passes through a sight glass The sight glass is used to check the fluid level in the system There should be no bubbles in the sight glass du...

Страница 8: ...tdoor part and an electric cabinet indoor part The electric cabinet houses a control panel from which you control all functions Optima heat pump Coil fins Electric cabinet closed Control panel Electric cabinet open Miniature circuit breakers Control unit Rego 603 Cable entry Fan Component parts of the heat pump ...

Страница 9: ... made between heating water and hot water The heating water is for radiators floor coils and hot water is for showers and taps Hot water is heated in a hot water heater The hot water heater is fitted with a sensor that senses the temperature of the hot water The heating water passes through the hot water heater s outer shell and heats up the hot water heater s inner tank The control unit makes sur...

Страница 10: ...oor temperature to the control unit The control unit controls the production of heat according to an adjustable heat curve The control unit can also control heat produc tion based on an extra heat curve See the heading Set extra heat curve with mixing valve This is applicable for example when you combine radiators with floor heating When there is a hot water heater in the system the heat pump alwa...

Страница 11: ...der the radiators inside the house will become warmer You determine the temperature of the radiators in relation to the outdoor temperature with the help of a number of settings curves on the control unit Selecting a lower curve gives higher energy savings Control with an outdoor sensor supplemented with a room sensor Control with an outdoor sensor supplemented with a room sensor means that you al...

Страница 12: ... water peak or is producing extra hot water Additional heat status Lamp lit The heat pump is using additional heat from e g an electric cassette Operating status Lamp lit The heat pump compressor is operational Lamp flashes The heat pump will start within 15 minutes Lamp not lit The heat pump compressor is not opera tional Power switch ON OFF You start and stop the heat pump using the power switch...

Страница 13: ...een the different menus and settings On the lower row of the menu display you will always see information about the significance of the buttons The function of the buttons changes 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 t...

Страница 14: ...19 Hot water settings Duration of 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 Mix valve ßow GT4 Temperature readings Room GT5 Temperature readings Compressor GT6 Temperature readings Heat trßuid out GT8 Temperature readings Heat tr ßuid in GT9 Tem...

Страница 15: ...o this it is important to understand the relation between the outdoor temperature return temperature and heat curve slope The easiest way to explain the relation is with a heat curve Heat curve You use the heat curve to help set the indoor temperature you would like The heat pump is controlled by the outdoor temperature When the weather becomes colder the heat pump ensures more heating is produced...

Страница 16: ...return temperature increases The colder the outdoor temperature the higher the return temperature At an outdoor temperature of approxi mately 22ºC we see the curve slope has reached the limit value 48O C for the return temperature You should wait at least twenty four hours when increasing or decreas ing the heating before making a new adjustment At outdoor temperatures around 0ºC you should adapt ...

Страница 17: ...se to lower it Adjust in small increments 0 5 1 0 units degrees is usually enough 5 Save the new value by pressing the Save button Fine tune the heat curve The heat curve can also be fine tuned Fine tuning means that you offset the heat curve in parallel Fine tuning is done from the menu display Temp fine tune The diagram for fine tuning shows how the dashed line has been offset upwards in paralle...

Страница 18: ...emperature gives more hot water when for example a large number of people wish to shower The heat pump first makes sure that the water reaches a temperature of ap proximately 50ºC The electric cassette then continues to heat the water to approximately 65ºC On the control panel and the menu Extra hot water you choose how long the function should run This is what to do 1 Press the Heat button in the...

Страница 19: ...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 Monitor all temperatures 3 Press the Select button 4 Turn the menu dial to scroll thro...

Страница 20: ...ature and whether the heat pump is in hot water production mode The menu shows the temperature of the water that is led into the heat pump It varies depending on the outdoor temperature and whether the heat pump is in hot water production mode The heat pump stops at 48ºC for reasons of safety The menu shows the temperature of the water inside the heat pump s condenser It varies depending on the ou...

Страница 21: ...age 25 Main menu Op time readings on HP and add heat 7 Page 25 Heat pump in operat number of hours 7 1 Page 26 Distribution HP DHW Rad in 7 2 Page 26 Add heat in operat number of hours 7 3 Page 26 Distribut add heat DHW Rad in 7 4 Page 26 Main menu Clock setting time and date 10 Page 26 Main menu Alarm logging of all alarms 11 Page 27 Main menu Return to factory settings 12 Page 27 Extra functions...

Страница 22: ...for heat pumps having a room sensor installed and which are set to operating mode A 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 ...

Страница 23: ...ixing valve 1 Press the Heat button in the initial menu 2 Turn the menu dial clockwise until you reach the menu Mix valve fine tune 3 Press the Adjust button 4 Turn the menu dial clockwise to increase the mixing valve Turn the menu dial anti clockwise to reduce the mixing valve 5 Save the new value by pressing the Save button Adapting the mixing valve curve You can break the mixing valve curve up ...

Страница 24: ...etween 22 00 and 06 00 1 Turn the dial clockwise until you access the menu Clock setting HP accord to clock menu 4 1 2 Press the Select button 3 Turn the menu dial clockwise to choose the day Now press the Adjust button to select 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 cu...

Страница 25: ... when peak tariffs are charged The procedure is the same as in the previous example Use this to make your settings Reading operating times Statistics concerning the heat pump and additional heat operations are stored in the control unit For example you can see how many hours they have been running To view the operating times for the heat pump and additional heat 1 Press the Heat button until Acces...

Страница 26: ... for operating modes A and B The menu shows the additional heat s allocation between hot water mode and heating mode The allocation is stated as a percentage Heating mode refers to the heating of the heating water 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 to access the menu Clock setting t...

Страница 27: ...rn 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 to access the menu Return to factory settings menu 12 1 Press the Heat button until Access CUSTOMER2 is displayed 2 Press the Menu button 3 Turn the menu dial clockwise until you reach the menu Return to factory settings menu 12 4 Press...

Страница 28: ...he heat pump 1 Turn the screws on top of the Optima a few turns 2 Rest the cover against your body 3 Lift the cover upwards to release the lower edge Remove dirt and leaves Over time leaves and other dirt can enter the heat pump You can easily remove any dirt through the inspection hatch on the side of the heat pump Unscrew the left side plate seen from the front and use a brush to remove the dirt...

Страница 29: ...drainage hose Clean the dirt from the coil fins using a degreasing agent and water Maintenance Particle filter The task of a particle filter dirt filter is to ensure no particles or dirt enter the heat exchangers Over time the filter can become clogged and must be cleaned To clean the filter 1 Shut down the heat pump using the ON OFF button 2 Close the valve and unscrew the sealing cap 3 Loosen th...

Страница 30: ...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...

Страница 31: ... operating mode 15 minutes after the fault has been rectified Miniature circuit breakers in the heat pump The Optima has a miniature circuit breaker in the heat pump s electric cabinet The electric cabinet should be installed indoors and close to the wall that backs onto the heat pump outdoors Miniature circuit breaker ALARM Power failure 031020 16 08 15 Info Ackn Cause Date when the alarm occurre...

Страница 32: ...et so high that the heating system s return temperature is too high Action 1 Reduce the temperature setting Possible cause 2 The hot water temperature is set too high Action 1 An alarm is given in hot water mode Contact the installer to adjust the hot water temperature Possible cause 3 The floor heating or radiator valves are closed Action 1 Open the valves Possible cause 4 The flow across the hea...

Страница 33: ...tors 3 Fill the heating system and vent if necessary Possible cause 2 Not enough flow over the heat pump Action 1 Press the Ackn button 2 Check that the heat carrier pump has not stopped 3 Check that all the valves are open 4 Possibly increase the pump speed Possible cause 3 Particle filter is clogged Action 1 Press the Ackn button 2 Check the filter 3 Clean the filter if necessary see Maintenance...

Страница 34: ... is caused by a too low water temperature in the heat pump Possible cause 1 Air in the heating system Action 1 Press the Ackn button 2 Check whether there is air in the radiators 3 Fill the heating system and vent if necessary Possible cause 2 Particle filter in the heating transfer circuit is clogged Action 1 Press the Ackn button 2 Check the filter 3 Clean the filter if necessary Possible cause ...

Страница 35: ...ormal operating conditions Action 1 Press the Ackn button 2 Wait and see External electric cassette EK The external electric cassette is installed indoors and connected to the heat pump s control unit Rego 603 Possible cause 1 The electric cassette s miniature circuit breaker has tripped Action 1 Press the Ackn button 2 Reset the miniature circuit breaker for the electric cassette by pushing up th...

Страница 36: ...t pump which for reasons of safety stops the compressor if the temperature of the water going out to the radiators becomes higher than the set value Possible cause 1 Not enough flow over the heat pump Action 1 Check that the heat carrier pump has not jammed 2 Check that all the valves are open Possible cause 2 Particle filter is clogged Action 1 Clean the particle filter see Maintenance The menu d...

Страница 37: ... also read through the For the User sec tion of the manual There you will find a great deal of information necessary to get a comprehensive understanding of the Optima heat pump Contents Important information to the installer Checklist What the shipment includes The heat pump in general Dimensions and heat transfer connections The heat pump s two operating modes Connect the Optima heat pump to the...

Страница 38: ... heat pump must be filled and vented Check that plumbing connections are intact and have not shaken loose during transport The heat pump is equipped with the control unit Rego 603 When the heat pump is commissioned the control unit must be set for the selected operating mode Read more about the settings in Commissioning the heat pump The control unit Rego 603 measures the phase sequence and gives ...

Страница 39: ...ump to the heating system Follow the instructions for the operating mode in question 6 Install the outdoor sensor and possible room sensor 7 Fill and vent the heating system before commissioning 8 Connect the heat pump to the electrical system Use the wiring diagram applicable to the operating mode in question 9 Connect an external switch the electric cabinet an earth fault breaker and the additio...

Страница 40: ...limetres Component parts From above Right hand side Back Heat transfer fluid out R25 Heat transfer fluid in R25 Fan Distribution box Evaporator Compressor Drying filter High pressure switch Sight glass Service connection Four way valve Suction accumulator Non return valve Expansion valve Low pressure switch Condenser Service connection Right Left Front Drainage R25 The heat pumps Optima 1000 and 1...

Страница 41: ...he heat pump See Connecting the heat pump to the power supply The heat pump must be positioned so that air is not prevented from passing through the air coils Minimum distance to a wall is 300 mm Avoid placements that results in the recirculation of cold air Recircula tion reduces the output of the heat pump Avoid falling snow and eaves drop In some cases a protective roof may be necessary The roo...

Страница 42: ...e on the hot side It should be fitted as close to the heat pump as possible and be horizontal The heat pump s two methods of control The control unit uses two different methods to control the heat pump These two methods are Control with an outdoor sensor and Control with an outdoor sensor supplemented with a room sensor More information about the control methods can be found in the User section un...

Страница 43: ...mp outdoors To avoid vibration transfer between the heat pump and the pipe system we recommend fitting flexible hoses at the inlet and outlet of the heat pump Between the heat pump and the house we recommend 28 mm copper pipe for lengths of less than 20 metres The pipes must be insulated with a material which cannot absorb moisture such as Armaflex Venting valves must be provided on the pipes Shor...

Страница 44: ...s when the hot water heater is hot enough Connected sensors T1 GT1 return sensor heating system T2 GT2 outdoor sensor T3 GT3 production of hot water accessory T4 GT4 when an extra mixing valve is fitted accessory T5 GT5 influence of the room sensor accessory T8 GT8 flow temperature from heat pump T9 GT9 return temperature into the heat pump Connecting the heat pump to the heating system Mixed heat...

Страница 45: ...n the hot water heater is hot enough Hot water mode when the heat pump is not operating The heat pump stops automatically at outdoor temperatures below approximately 10ºC and cannot then produce hot water The electric element accessory in the hot water heater is then automatically activated by Rego 603 and the hot water heater will thus maintain a high temperature The temperature is adjustable usi...

Страница 46: ...1 The compressor can be equipped with a softstarter to reduce the inrush current The softstarter is fitted on the heat pump to the right of the terminal box and connected as in Circuit diagram the Optima heat pump Heating cable A drainage pipe from the heat pump s drip collector may need to be fitted with a heating cable The heating cable is connected on terminals 11 12 in the heat pump s terminal...

Страница 47: ...F1 Miniature circuit breaker operation CK1 Contactor compressor CK2 Contactor fan MB1 Motor cut out compressor MB2 Motor circ fan switch R1 Relay defrosting AFM Defrosting module HR Space for help relay for additional heat Front Assembly plate Sensor card Terminal card X01 Terminal rail Terminal card ...

Страница 48: ...ompressor MB2 Motor circ fan switch R1 Relay defrosting F1 Miniature circuit breaker heat pump AFM Defrosting module 1 Softstarter accessory 2 Heating cable draining pipe accessory Low pressure switch High pressure switch Condenser temp Heat transfer fluid in Heat transfer fluid out Hot gas SENSOR CARD INTERNAL COUPLINGS TERMINAL CARD Four way valve Fan Compressor max Incoming supply 3x400V N PE T...

Страница 49: ...g valve Hot water Out Return radiator Mixing valve TERMINAL CARD Wiring to the hot water heater starting is connected to relay terminals 11 and 14 NOTE HR is not included in the delivery Heat transfer fluid in Heat transfer fluid out ELECTRIC CABINET Inc Supply 5G2 5 3x400V Three way valve HEAT PUMP TERMINAL CARD ELECTRIC CABINET ...

Страница 50: ...urn radiator Mixing valve TERMINAL CARD NOTE HR is not included in the delivery Heat transfer fluid in Heat transfer fluid out ELECTRIC CABINET Inc Supply 5G2 5 3x400V Three way valve VXV HEAT PUMP TERMINAL CARD 230V at 10 C Electric element in WH Cut the cable to the oil fi red boiler electric boiler and connect to relay terminals 11 and 14 ...

Страница 51: ...ect to terminal block GT5 on the terminal card The alarm lamp in the room sensor is connected to the terminal block ALARM LED Connection of electric cassette additional heat operating mode A If the additional heat is an electric cassette it is connected in the following way Fit the coil on help relay HR to N and L on contact T2 The electric cassette s on off is connected to the help relay terminal...

Страница 52: ...l GT3 X Room sensor T5 GT5 Connected if room sensor influence is required Connect to terminal block GT5 on the terminal card The alarm lamp in the room sensor is connected to the terminal block ALARM LED Connection of mixed additional heat operating mode B When the additional heat is an electric oil fired boiler with a mixing valve the wiring to the operating circuit is connected to terminals N an...

Страница 53: ...different functions on the control unit Rego 634 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...

Страница 54: ...ion about the control panel under the heading Control Panel in the User section of the manual 1 Press the menu button for approximately ten seconds until Access SERVICE is shown on the menu display Now press the Menu button 2 Menu Indoor temperature settings menu 1 is shown 3 Turn the menu dial clockwise to the right until you come to the menu Commiss Service for installer menu 5 Now press the Sel...

Страница 55: ...at pump starts within 20 seconds The setting must be repeated each time you need to make a fast restart Commissioning the heat pump Before commissioning the heat pump the heating system must be filled up and completely vented Check that there are no leaks 1 As many radiators as possible should be fully open when connecting to an existing water system When connecting to floor heating at least half ...

Страница 56: ...ifferent menu displays to help you check the status of the heat pump The heat pump status is shown by the timer readings in menu 6 Read the DHW peak interval timer The function shows when the next hot water peak will be carried out If the timer shows zero the hot water peak will be activated the next time there is a hot water requirement The menu display is only shown in operating mode A Read the ...

Страница 57: ...to 60 minutes 60 minutes is recommended when electricity is used for additional heat and 120 to 180 minutes is recommended when an oil fired boiler is used Return to factory settings If you regret your settings you can return to the factory settings in menu 12 If you are in Customer level 1 or 2 when you select Return to factory settings only the settings made on Customer levels 1 and 2 are reset ...

Страница 58: ... 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 When defrosting it bubbles continuously in the sight glass This is perfectly normal Bubbles present when the heat pump is running are a fault symptom They are probably due to insufficient refrigerant Read more about the fault symptom in th...

Страница 59: ...g does not apply to the temperature inside the hot water heater Set too high and the heat pump can shut down on a high return or high pressure switch Applies to sensor T3 GT3 only A higher setting than 45ºC can cause problems 5 Set the hysteresis for the hot water temperature The function measures below and above the value set in menu 2 3 Applies to sensor T3 GT3 only Less than 5ºC should be avoid...

Страница 60: ...art up Bubbles may appear in the sight glass for a few minutes during start up The bubbles should then stop When defrosting it bubbles continuously in the sight glass Bubbles present when the heat pump is running are a fault symptom They are probably due to insufficient refrigerant Read more about the fault symptom in the User manual under the heading What to do if a fault occurs 6 Check that the ...

Страница 61: ...p of electric oil fired boiler The function is used to stop the boiler from starting and stopping all the time For reasons of safety there is a time delay from when the mixing valve has not received a signal to open until the boiler may stop completely When the boiler has stopped completely the additional heat timer must count down to zero again 6 Here you set the neutral zone for the additional h...

Страница 62: ...eat emitting surface This means that the flow temperature from the heat pump is kept low After testing vent the system again and top up with cold water if necessary 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 If there are bubbles present all the time this is a fault sympt...

Страница 63: ... the defrosting The defrosting module is located in the electric cabinet and you can change the interval and maximum time for defrosting if necessary Pre delivery setting equivalent to 60 minute intervals and 10 minutes maximum time Setting combinations for the interval and maximum time The heat pump must be switched off and on once using the main switch when changes have been made to the defrosti...

Страница 64: ...1 Additional heat timer 60 minutes 8 3 1 Time delay SV1 30 minutes 8 3 2 Time delay stop boiler 60 minutes 8 3 3 Mix valve curve neutral zone 3ºC 8 3 4 Setting of ramp time open 20 minutes 8 3 5 Setting of ramp time close 3 minutes 8 3 6 Setting of SV1 runtime 1 minute Menu Setting Factory setting 1 1 Temp incr decr 4 1 2 Temp fine tune 0º 1 3 Heat curve adjustm 0º 1 4 Heat curve hysteresis 5º 1 5...

Страница 65: ...00 1300 Emitted Supplied output at 7 35º kW 10 5 2 7 13 7 3 6 Emitted Supplied output at 7 50º kW 9 6 3 1 13 3 4 2 Nominal flow heat transfer fluid l s 0 34 0 44 Internal pressure drop heat transfer fluid kPa 4 5 Fan speed no of steps 1 Air flow m h 4000 5500 Electrical consumption fan A 0 4A 400V N3 0 7A 400V N3 Electrical supply 400V N3 phase or Fuse size AT 10 16 Compressor Piston Highest outgo...

Страница 66: ...ucts the air flow through the evaporator automatic defrosting starts Electric cassette The electric cassette is an external energy source connected to provide extra output in cold weather when large amounts of water are drawn off and with hot water peaks Evaporator The refrigerant meets the outdoor air in the evaporator At this stage the refrigerant is in a fluid state and is at approximately 10ºC...

Страница 67: ...elow 10ºC for more than 30 minutes the heat pump stops and switches to additional heat operation only Radiator The radiators are carefully placed in the building to provide the best possible heat Refrigerant The heat pump consists of four main parts evaporator condenser expansion valve and compressor These four main parts are linked in a closed circuit A refrigerant cir culates in the system which...

Страница 68: ...lectric cabinet 8 Electrical malfunction 31 Evaporator 6 7 29 Expansion valve 6 7 Extra functions 21 Extra heat curve with mixing valve 23 Extra hot water 14 18 F Factory setting 27 Fan 8 Fuse 31 G Glossary 66 H Heat carrier pump 33 Heat curve 15 Heat distribution system 7 Temperature setting 22 Heating water 9 Holiday function 22 Hot water heater 9 Hot water peak 24 Hot water settings 24 Hot wate...

Страница 69: ...temperature 15 Return to factory settings 27 Room sensor 18 20 Room sensor influence 22 Room temperature 18 S Savings 30 Screen 29 Sealing cap 29 Sensor 20 Sensor fault 34 Set clock 26 Sight glass 7 Suction accumulator 7 Summer disconnection 22 T Temperature readings 20 Temperature sensor 20 Three way valve 9 Time 26 W Warm weather 17 Working temperature 42 ...

Страница 70: ...IVT Industrier AB Sweden www ivt se mailbox ivt se Tranås Tryck Media ...

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