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Summary of Contents for IVT 495 TWIN
- Page 1 IVT 495 TWIN Guide to installation, commissioning and maintenance Article no: 9518799 Version 2.0...
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Page 3: Table Of Contents
Draining the heating circuit ......46 Indoor temperature ........22 Product information IVT 495 TWIN ....47 Other temperatures ........22 Notes ............... 48 IVT reserves the right to make changes in design without prior notice. IVT 495 TWIN 9518799... -
Page 4: User
* Normal/Economy mode * Holiday mode The IVT 495 TWIN is a heat pump recycling * Extra hot water energy from the outside air and the ground. It is supplemented with an electric element operating To prevent corrosion, the cylinder is made from on a double-shelled tank with a hot water heater. -
Page 5: User Tips
5. A newly installed exhaust air heat pump might need to be vented several times during the first weeks. Vent the system according to the instructions under Operational disturbances / Are the radiators cold despite the plant being IVT 495 TWIN 9518799... -
Page 6: System Description
(according to its settings). 4. Exhaust air provides the ground coil with new heat when the house does not need heating. IVT 495 TWIN 9518799... -
Page 7: From The Outside
This lamp is lit when the heat pump is on and flashes when it is off. 6. This dial is used to navigate the menus and to change settings. 7. The display shows information in plain text. 8. Buttons for navigating the menus. IVT 495 TWIN 9518799... -
Page 8: From The Inside
15. Condensed water hose 16. Cold water 17. Hot water 18. Waste water hose 19. Safety valve for the heating system 20. Venting nipple for the heating system 21. Anode control unit 22. Anode 23. Exhaust air filter IVT 495 TWIN 9518799... -
Page 9: Instant Settings
Choose “Extra hot water” if you have a temporary and turn the dial until the temperature you want to need for more duration hot water. check appears. NOTE: The savings factor will be somewhat reduced during extra hot water. IVT 495 TWIN 9518799... -
Page 10: Setting The Heating
Example: Curve 4 and an outdoor temperature of -5ºC gives a flow temperature of 36ºC. (See dashed line.) Outdoor temperature *) Max. flow temperature can be changed by the installer. The highest outgoing heat transfer fluid temperature is approx. 58ºC. IVT 495 TWIN 9518799... -
Page 11: Basic Settings
3-4 for wooden. The other curves are for radiator systems. In a newly-built house, curve 5 is normal for radiator systems. Choose curve 6 or higher if you need a higher temperature. IVT 495 TWIN 9518799... -
Page 12: Fine Tuning
6. Press the right button when the required value has been set (Save). The value is now saved. Cancel Save Press the left button to return to the main menu. IVT 495 TWIN 9518799... -
Page 13: Adapting The Heat Curve
6. Press the right button when the required value has been set (Save). The value is now saved. Cancel 20,0 Save Press the left button to return to the main menu. IVT 495 TWIN 9518799... -
Page 14: Room Temperature
6. Press the right button when the required value has been set (Save). The value is now saved. Cancel 20,0 Save Press the left button to return to the main menu. IVT 495 TWIN 9518799... -
Page 15: Room Sensor Influence
6. Press the right button when the required value has been set (Save). The value is now saved. Cancel Save Press the left button to return to the main menu. IVT 495 TWIN 9518799... -
Page 16: Temporary Heat Reduction
6. Press the right button when the required value has been set (Save). The value is now saved. Cancel Save Press the left button to return to the main menu. IVT 495 TWIN 9518799... -
Page 17: Summer Mode
Turn the dial one step to access House heating off the info menu. The info menu now shows House heating off. Repeat the above to connect the heating again and set the temperature at which the heating season should start, normally 17°C. IVT 495 TWIN 9518799... -
Page 18: Economy Mode / Normal Mode
5. Press the right button (Adjust), the display now shows Economy mode?. 6. To activate economy mode press the right Economy mode? button (Yes). 7. Press the left button (No) to return to the main menu. IVT 495 TWIN 9518799... -
Page 19: Setting The Hot Water
6. Press the right button when the required number of hours has been set (Save). The Cancel Save value is now saved. Press the left button to return to the main menu. IVT 495 TWIN 9518799... -
Page 20: Hot Water Peak
7. Press the right button when the required IIIIIIII I I I I I I number of days has been set (Save). The value Cancel Save is now saved. Press the left button to return to the main menu. IVT 495 TWIN 9518799... -
Page 21: Checking Temperatures
3. Press the right button once, and turn the dial until the temperature you want to check appears. 4. Press the left button a few times to return to the main menu. The contents of the respective displays are shown on the next page. IVT 495 TWIN 9518799... -
Page 22: Flow Temperature
Room GT5 shows the indoor temperature. Room GT5 20,0º Other temperatures A further four temperatures are shown: Dur. hot water GT3:2, Heating water GT3:3, Compressor GT6 and HTFcoll GT10. These are solely for the heat pump’s internal usage. IVT 495 TWIN 9518799... -
Page 23: Setting The Additional Heat
Addit. heat only? appears on the display. 5. Press the right button (Yes), and OK is displayed confirming your choice. 6. Repeat steps 1-5 to reconnect the compressor unit. Press the left button a few times to return to the main menu. IVT 495 TWIN 9518799... -
Page 24: Quickstart Additional Heat
6. Press the right button (Save) once the required IIIIIIII I I I I I I temperature has been set. The value is now Cancel Save saved. Press the left button a few times to return to the main menu. IVT 495 TWIN 9518799... -
Page 25: Maintenance
If the lamp shows red for more than 10 hours, the anode is faulty and a service engineer must be called. You can wait until the next working day if the fault occurs on a holiday. IVT 495 TWIN 9518799... -
Page 26: Expansion Vessel
Open the valve and start the heat pump. NOTE: Working on the heat pump Switch off the mains power before commencing any work on the heat pump. All cooling and electrical work must be carried out by an accredited company. IVT 495 TWIN 9518799... -
Page 27: Operational Disturbances
Open the nipple a couple of turns until water comes out. Close the nipple afterwards. If one or more of the radiators are still cold contact the plumber. IVT 495 TWIN 9518799... - Page 28 The compressor and control equipment are switched off during manual operation. Only the ventilation and the electric element are operational. IVT 495 TWIN 9518799...
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Page 29: Alarms
3. Press the right button once and the text Factory settings? appears on the display. 4. Press the right button (Yes), the heat pump Factory settings? now returns to the factory settings. IVT 495 TWIN 9518799... -
Page 30: For The Installer
The following pages contain essential information for the correct installation of the plant. The IVT 495 TWIN is a heat pump recycling the heat curve by increasing or reducing the flow energy from the outside air and the ground. It is... - Page 31 (T3) on the underside of the motor to the compressor is cold and the pressure pipe protection in the electric box. The suction pipe The pressure pipe Switch conductors T2 and T3. should be hot. should be cold. IVT 495 TWIN 9518799...
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Page 32: Circuit Diagram
GT3:10 Evaporator Incoming heat transfer fluid temp Flow temperature Floor heating or radiators Ground coil For a combination of floor heating and radiators, where two different flow temperatures are required, install an intermediate shunt group. IVT 495 TWIN 9518799... -
Page 33: List Of Components
30. Miniature circuit breaker (MCB) 31. Main switch 32. Manual operation switch 33. Anode control unit 34. Control unit 35. Heat transfer fluid (HTFcoll) pump 36. Fan card 37. Expansion vessel for the heating system 38. Air filter IVT 495 TWIN 9518799... -
Page 34: Installation, General
HTF in/out, plain pipe ø22 marked Return Flow. Cold water and hot water are connected to outlets marked Cold water and Hot Flexible, diffusion-proof hose is recommended water. in order to reduce sound levels and simplify installation. IVT 495 TWIN 9518799... - Page 35 Standard pipe connections Electrical lead-throughs HTF (coll) in HTF (coll) out Return Riser Waste water View from the back Heat medium diagram Wilo 25-6 L3 Wilo 25-6 L2 Wilo 25-6 L1 Water flow [l/h and l/s] IVT 495 TWIN 9518799...
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Page 36: Electrical Installation
The room sensor must be activated by a service engineer. IN GT3-4 GT3-1 GT3-2 GT3-3 Markings on the circuit card can differ from those illustrated. However, the markings above the figure applies. IVT 495 TWIN 9518799... - Page 37 30 mA earth-fault breaker to trip even if there is no serious fault. Consequently, if an earth-fault breaker is installed across the heat pump it must be of at least 300 mA. Comply with applicable regulations. IVT 495 TWIN 9518799...
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Page 38: Connecting The Ventilation
For evacuation tumble dryers contact the ventilation contractor. Cooker hoods should have a separate flue. Adjusting the air flow Must be carried out by the ventilation technician. For adjusting the air flow, see the ventilation drawing. IVT 495 TWIN 9518799... -
Page 39: Adjusting The Ventilation
Speed 3 150V Speed 4 125 135 150 180 180V Speed 5 0 115 230V Speed 6 The IVT 495 TWIN requires at least fan speed 3. Move this cable (black) Ventilation diagram Air flow m³/h IVT 495 TWIN 9518799... -
Page 40: Ground Coil
IVT 495 TWIN 150 metres 50 metres *) The hose length must be increased for exhaust airflows less than 120m³/h, contact IVT for further information. Max hose length is 400m. Finished ground level Refilling with existing soil Collector hose 150 m Type PEM 40 x 2.4 PN 6.3. -
Page 41: Placement Of Ground Coil
The ground coil should be placed in relation to the shape of the site. An example is provided below. Do not remove snow from above the coil since it insulates the ground heat. Min 0.5m from boundary to neighbours. Min 1.0 m 495 TWIN Min 1.5m IVT 495 TWIN 9518799... -
Page 42: Connecting The Collector
INSTALLER Connecting the collector The drawing shows the connection of a ground coil to the IVT 495 TWIN. The joint pipe to the heat pump is fitted with a filling unit, a particle filter and an expansion vessel. A safety valve is fitted to the outgoing duct. -
Page 43: Commissioning
See the supplier’s instructions. f. Fill the ground coil in accordance with Filling of heat transfer fluid. NOTE: The heat pump must not be run until the ground coil has been filled! Only manual operation is permitted. IVT 495 TWIN 9518799... - Page 44 On start-up, when the system still is cold, the heat pump will prioritise heating of duration hot water. This means that the flow temperature will be lower than shown on the heat curve until the water has reached the correct temperature. IVT 495 TWIN 9518799...
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Page 45: Filling Of Heat Transfer Fluid
-15°C is reached. The hose, PEM 40 x 2.4mm, holds around one litre per metre. IVT recommends Bio-Ethanol / heat transfer fluid. Suitable mixture is 29% Bio-Ethanol / HTF and 71% water. Connect two one inch hoses to filling valves 1 and 2. One hose has a submersible pump (min 6 m³/h) connected at the other end. -
Page 46: Draining The Heating Circuit
1/2 inch external thread to which the draining hose can easily be attached. 4. To empty the heat pump of heating water, open the venting nipple or safety valve (see List of components). IVT 495 TWIN 9518799... -
Page 47: Product Information Ivt 495 Twin
INSTALLER Product information IVT 495 TWIN Emitted output at 0°C/50°C 3.9 *) Supplied output at 0°C/50°C 1.55 *) Nominal flow HTF 0.30 Min. flow HTF Nominal flow HTF (collector) 0.22 **) Nominal flow exhaust air m /h Min. and max. exhaust airflow... -
Page 48: Notes
IVT Industrier AB, Sweden www.ivt.se | mailbox@ivt.se...
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