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Air to Water Low Temperature Heat Pump

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System Layout and Applications …

System Layout and Applications

Low Mass vs High Mass

Radiant Panels

Fan Coils

Domestic Hot Water

Solar Thermal

Balance Point Strategies

Heat Pump Application Software

Mono-Valent

Mono-Energetic

Bi-Valent

Programming for Energy Savings with User Interface

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  • In Reply to Intensive Market Demand, Daikin is proud to launch VRVIII “ One step further into the revolution”
  • Altherma’s advanced control strategy maximizes comfort and energy efficiency by steering the system switches between the heating or cooling mode and the sanitary mode. For specific end user needs this control strategy can be customized via the user interface on the hydrobox. The sanitary tank maximizes both the energy savings and the sanitary warm water capacity by its optimal placement of the heat exchanger, the temperature sensor and the electric booster heater combined with its control strategy . The placement of the heat exchanger in the lower part of the tank maximizes the contribution of the heat pump to the sanitary warm water preparation. The integrated booster heater in the upper part contributes to higher water temperatures or rapid water heating in case of high warm water demands. If the temperature sensor would be placed too low: The temperature in the tank would become too high before the sensor reaches the “booster heater off” setpoint, this can heat up the return water temperature which could be harmful to the heat pump. In addition the efficiency would be affected with reduced coverage by the heat pump. If the temperature sensor would be placed too high, the warm water capacity can be reduced which affects comfort since the Booster heater switches off too early. If the Booster heater is placed too close too the heat exchanger, it will heat up the condenser (via the return water) which can be harmful to the heat pump. If the heating exchanger surface area is too small, the heat pump may not reach the setpoint within the maximum time in sanitary mode (field setting 5-60 min),and the heat pump may have to stay so long in sanitary mode so that the room temperature decreases. This means less comfort...
  • To successfully enter the heating market, a water based system must be used. Floor heating close to ideal. Low source temperature – small temp diff between source and emitter. Ideal for HP Radiators higher source temp. Colder along floor than head. Convection. Blows hot air, draft. Big temp diff between heat and feet.
  • Training Course: Heating Products: Altherma 2008 For Internal Use Only
  • Cooling is an option. Must have reversible hydrobox. Heating hydrobox can not be upgraded to heating and cooling. 2 way valve (field supply) makes sure no cold water enters the floor loops and causes condensation FCU for cooling System will switch between sanitary mode and cooling Both space heating and cooling has priority over sanitary water. Does not mean lack of warm water. Not a instant system. 150-300l buffer volume. Switches to sanitary mode when the setpoint for heating or cooling is reached Can provide cooling through floors is water temp is kept high and adequate dew point control is provided.
  • Cooling is an option. Must have reversible hydrobox. Heating hydrobox can not be upgraded to heating and cooling. 2 way valve (field supply) makes sure no cold water enters the floor loops and causes condensation FCU for cooling System will switch between sanitary mode and cooling Both space heating and cooling has priority over sanitary water. Does not mean lack of warm water. Not a instant system. 150-300l buffer volume. Switches to sanitary mode when the setpoint for heating or cooling is reached Can provide cooling through floors is water temp is kept high and adequate dew point control is provided.
  • Heat pump with sanitary tank, the max distance between the hydrobox and 3 way valve is 3 meters.
  • Heat pump with sanitary tank, the max distance between the hydrobox and 3 way valve is 3 meters. The system switches automatically between modes The volume of the warm water is very small compared to the volume of cold water (water mixing) The FCU will not blow out warm air.
  • Heat pump with sanitary tank, the max distance between the hydrobox and 3 way valve is 3 meters. The system switches automatically between modes The volume of the warm water is very small compared to the volume of cold water (water mixing) The FCU will not blow out warm air.
  • The on/off button is only used for the heating cooling not sanitry!!!!!!!!!
  • Transcript

    • 1. Daikin Altherma
    • 2. Daikin’s 4 Pillars
    • 3. Daikin’s 4 Pillars• Applied • VRV lll• Air Conditioning • Mini Splits & Sky Air• Refrigeration • Conveni Pack• Heating • Altherma
    • 4. AppliedDaikin is proud to launch “One step further into the revolution”
    • 5. Air Conditioning • The Single Splits come in 2 family groups – Utilizing the High Efficiency RXS Outdoor Unit with efficiency ratings of up to 17 SEER and 10.1 HSPF – Utilizing the Standard Efficiency RX Outdoor Unit with efficiency ratings of 13 SEER and 7.7 HSPFEfficiency based on ARI 210/240 2008
    • 6. Refrigeration
    • 7. Conveni Pack
    • 8. Daikin Altherma• The Heating Pillar• Altherma, Monobloc, and more…
    • 9. Introduce an electric hydronic system that heats andcools the space, and can supply domestic hot water.Eco-efficient air-to-water heat pump hydronic system.Introduced in Europe in 2005, a unique combinationusing existing Daikin technology.ALTHERMA, DAIKIN’s solution for thehydronic heating market. 16
    • 10. Table of Contents 1. Introduction to Daikin Altherma 2. System Layout and Applications 3. Balance Point Strategies 4. Programming for Energy Savings 26
    • 11. Introduction to Daikin Altherma
    • 12. Drivers to a Changing Heating Market• The Heating Market is Changing – Energy prices : ever rising prices of fossil fuels due to increasing demand and reduced availability – Ecological concern : efforts to reduce emmissions of green house gases and energy consumption – Changing legislations, incentives : to support the drive towards major changes in energy consumption habits for the purpose of achieving ecological targets in an effort to slow down, stop or even reverse climate change. 28
    • 13. With DAIKIN ALTHERMA product, DAIKIN has entered the true HEATING market In 2006 DAIKIN entered the EU-heating market using an air to water < Initial U.S.Target market > heatpump Hydronic Heat Common Heat Pump acceptable In 2009, Daikin AC will launch this technology in the U.S NWCheap Electricity Hybrid Altherma or G/F Rebate Opportunities Rebate Opportunities Cold Region 1. Savings on running costs by high COP NW NE compared with Gas/Oil boilers 2. Friendly for the environment 3 . Differentiation with cooling function against boilers Product differention Water heating market 1 Savings on running costs -40% compared to fuel boilers 2009 Heat source market: 30 to 50°C DAIKIN original strategy: Enter the LOW temperature heating Low 86 to 122°F market by development of an HFC-based -25% compared to gas boilers temp : H/P 2 Environmently friendly 60 % savings on CO2-emissions Floor heating Mainly new houses Capitalize on initial product scope to strengthen opportunity 3 Easy installation in wider heat pump market with HT solutions 50 to 80°C Enter the HIGH temperature heating market by 2010 - No need for chimney High using a Cascade System (R-410A to R-134). 122 to 176°F Orignally a CO2-based H/P was going to be - No need for fuel storage tank Temp. : - No need for connection to gas supply used. Issues with high operating pressures ruled this option out at this time. Radiator Mainly refurbishment 29
    • 14. Selection conditionsTypical conditions for the heating LWT are:86 to 95°F (at design conditions) for floor heating86 to 113°F (at design conditions) for fan coil units and104 to 122°F (at design conditions) for lowtemperature radiatorsTypical conditions for cooling LWT are:41 to 71°F (at design conditions) for fan coil unit 30
    • 15. Daikin Altherma™ – Why “Altherma”??“All-thermal” functions embedded: heating, domestic hot water, cooling = all year comfortOr“Alternative thermal” system, friendly for the environment, using renewable energy sources3 functions: Unique concept in the EU market heating Domestic hot water cooling Main product functions TOTAL CONCEPT FOR CLIMATE CONTROL IN RESIDENTIAL APPLICATIONS 31
    • 16. Benefits for the End-User• General – Only one energy supply needed (single invoice) – Comfortable heating system• Compared to gas/oil – No risk for gas or oil leaks, no risk for CO contamination – Improved installation possibilities (no combustion ventilation, no combustion exhaust gas evacuation, no oil storage) – Possibility of cooling• Compared to direct electrical heating – Efficiency 2 to 4 times higher – More capacity available for same power input• Compared to geothermal heat pumps – No expensive drilling or excavation works, small installation footprint outdoors 32
    • 17. Daikin Altherma Overview
    • 18. Daikin Altherma™ - THE 3 IN 1 GUARANTEE – FOR ABSOLUTE COMFORT Daikin Altherma™ is a unigue system that heats, produces domestic hot water and can even cool spaces. Altherma™ offers maximum year round comfort. The air/water heat pump is an interesting alternative for classic gas or fuel oil heating that offer unique benefits: Uses renewable energy sources (extracts heat from outside air) Delivers considerable savings in energy costs Delivers a significant contribution in the fight against CO2 emissions Provide heating, cooling and domestic hot water User Interface Room ThermostatOutdoor Heat Pump Indoor Unit (Hydro Box) Solar Kit Domestic Hot Water Tank 34
    • 19. Daikin Altherma Split Type Overview Ideal concept for a new house HYBRID system in combination with 120 to 180 m² Domestic hot water tank ALTHERMA Size of house: 1292 to 1938 ft² Stainless steel 3 sizes: 150, 200, 300 l (40, 53, 79 gallon) HE / CO Solar Kit Solar kit = HE / (CO) (*) (*) floor cooling has limited capacity (approx 20 W/m²) interface between solar panel and Altherma domestic hot water tank Outdoor Unit Domestic Hot Hydro-Box Floor heating Water Tank Water temp: 30~35°C~40 blank 86~95°F~104 35
    • 20. Daikin Altherma Split System FAN COILS HydroboxOutdoor unit Headers 3 way valve Hot water tapping UnderFloor Heating By-pass valve Headers Cold water inlet DHW tank 36
    • 21. HOT WATER SUPPLY TEMPERATURE/PRESSURE RELIEF CONNECTION INLET WATER SLOENOID DHW Mode VALVE DHW TANK HYDRO KIT 4.8 gallons EXPANSION VESSEL LIQUID LINE CONDENSING UNIT GAS LINE DRAINAGE POINT MAINS COLD WATER SUPPLY HEATING LOOP DISTRIBUTION TUNDISH COMBINATION 3 PORT 2 PORT VALVE VALVE VALVE FLOOR TOWEL LOOP RAIL SINK UNIT COLD WATER SUPPLY FAN COIL LOOP DRAINAGE VALVE FCU No. 1 37
    • 22. HOT WATER SUPPLY TEMPERATURE/PRESSURE RELIEF CONNECTION INLET WATER SLOENOID Space Heating Mode VALVE DHW TANK HYDRO KIT 4.8 gallons EXPANSION VESSEL LIQUID LINE CONDENSING UNIT GAS LINE DRAINAGE POINT MAINS COLD WATER SUPPLY HEATING LOOP DISTRIBUTION TUNDISH 3 PORT 2 PORT COMBINATION VALVE VALVE VALVE FLOOR TOWEL LOOP RAIL SINK UNIT COLD WATER SUPPLY FAN COIL LOOP DRAINAGE VALVE FCU No. 1 38
    • 23. HOT WATER SUPPLY TEMPERATURE/PRESSURE RELIEF CONNECTION INLET WATER SLOENOID Space Cooling Mode VALVE DHW TANK HYDRO KIT 4.8 gallons EXPANSION VESSEL LIQUID LINE CONDENSING UNIT GAS LINE DRAINAGE POINT MAINS COLD WATER SUPPLY HEATING LOOP DISTRIBUTION TUNDISH COMBINATION 3 PORT 2 PORT VALVE VALVE VALVE FLOOR TOWEL LOOP RAIL SINK UNIT COLD WATER SUPPLY FAN COIL LOOP DRAINAGE VALVE FCU No. 1 39
    • 24. Daikin Altherma LT Monobloc Overview Solar collectors Room thermostat Fan coil unitLT radiator Under floor heating Outdoor unit Domestic hot water tank 40
    • 25. Daikin Altherma Monobloc System FAN COILSMonobloc Unit Headers 3 way valve Hot water tapping UnderFloor Heating By-pass valve Headers Cold water inlet DHW tank 41
    • 26. Comparison LT Split – LT Monobloc Altherma LT Split Altherma LT Monobloc Outdoor (compressor) + Indoor Outdoor only (compressor andHeat pump type (hydronic parts) hydronic parts combined)R-410A refrigerant Between outdoor unit and indoor Inside the outdoor unitpiping unit Between indoor unit and heating Between outdoor unit and heatingH2O piping emitters emitters 42
    • 27. Operating range Heating mode Cooling modeT ambient T ambient 77°F/25°C 109°F/43°C -4°F/-20°C 59°F/15°C 77°F/25°C 122°F/50°C 45°F/7°C 68°F/20°CHydrobox Leaving Water Temperature Hydrobox Leaving Water Temperature Sanitary modeT ambient Booster 109°F/43°C heater 95°F/35°C -4°F/-20°C 77°F/25°C 122°F/50°C 194°F/90°C Sanitary Tank Outlet Temperature 43
    • 28. Domestic hot water tank design DHW tank maximizes energy savings & warm water capacity Booster• Optimal placement of: Heater 1. Heat exchanger, 2. Temperature sensor & 3. Booster heater Leaving water from Sensor Heat pump• Control strategy – Next slide Heat Exchanger Return water 44
    • 29. Domestic hot water control strategy• DHW priority setting can be adjusted• Powerful DHW mode : both heat pump and booster heater are in operation for quick hot water preparation• Booster heater control : – Adjustable delay timer : allow heat pump to heat up the water as high as possible (118.4 -122°F) before operating the booster heater – Booster heater priority : simultaneous operation of back-up heater and booster heater can be disabled, booster heater has priority – Scheduled timer : booster heater operation can be controlled by scheduled timer• Comfort settings : – Max DHW running time : maximum continuous operation in DHW mode (to avoid cooldown of rooms) – Anti-recycling time : minimum time between two successive DHW operations (to allow recovery of temperature in heated rooms)• Thermal disinfection mode – Heat up the tank daily / weekly to avoid bacteria infection (default setting 158°F) 45
    • 30. Domestic hot water recovery times Static Recovery Times (47°F/8°C outdoor ambient) Daikin Altherma™ DHW Recovery Times (minutes) Capacity BTUH 50 gal (220 l) Tank 80 gal (300 l) Tank (036) 36000 55 89 20 Minute Booster Heater Delay 48 74 (036) 46,000 w/Booster Heater (3kW) 43 70 (048) 48000 45 65 20 Minute Booster Heater Delay 37 59 (048) 58,000 w/Booster Heater (3kW) 34 55 (054) 54000 37 59 20 Minute Booster Heater Delay 34 53 (054) 64,000 w/Booster Heater (3kW) 31 51 Recovery times based on 80°F/44.5°C ΔT Booster heater delay default setting is minimum 20 minutes (Maximum is 95 minutes) 46
    • 31. Daikin Altherma Technology
    • 32. Heat generation by heat pumpsNo heat “generation”, only move heat from the outside to the inside. 48
    • 33. Heat pump principle Expansion valve Condenser Evaporator CompElectricpower 49
    • 34. Heat Pump ConceptCapture heat from the outside air and transfer it to the inside of the building. Example: 48,000 BTU heat pump will use 27.97 amps @ full load ERLQ048/ EKHBX054 Producing 50,700 BTU of heat @ 54ºF/12°C outdoor w/ 113° LWC ( 44.8 kBTU at 45ºF/7°C outdoors) ( ( 31.6 kBTU at 19ºF/-7°C outdoors) 65.8% of Rated Capacity Electric heat of 51,182 BTU or a 15kW heat strip @ 230 volts would consume 65 amps Electric Heat uses 2.33 times the power Which is more efficient, No heat “generation”, only inside??? heat Creating the heat energy or just bring it move from the outside to0the inside. CO emissions - 2 50
    • 35. Daikin Altherma Outdoor Unit Technology Bell Mouth Guides Smooth air inlet bell mouthDigitally Commutated Fan Motors added to the bell mouth intake to reduce turbulence. Efficiency improved in all areas compared to conventional AC Sine Wave DC Inverter motors, especially at low speeds. Use of the smooth sine wave PWM smoothes motor rotation, Aero Spiral Fan further improving operating efficiency and reducing The bent fan blade edges offensive operating sounds. control air eddies of the blade edge, drastically reducing operating sound. Reluctance Digitally Commutated Compressor Super Aero Grille Overheating losses are Refined ventilation mechanism reduced by pressurizing the enables further reduction in area around the motor, required fan power. boosting energy saving performance in conjunction with other features. 51
    • 36. Built In Reliability PE fin Special anticorrosion treatment of the heat exchanger provides 5 to 6 times greater resistance against acid rain and salt corrosion. Corrosion resistance rating Non-treated Anticorrosion treated Salt corrosion 1 5 to 6 An anticorrosion Acid rain 1 5 to 6 heat exchanger cutaway view Hydrophilic film Aluminum Heat exchanger Corrosion-resistant acrylic resin Galbarium steel base A rust-proof steel sheet on the bottom of the unit gives additional protection. 52
    • 37. Compressor Technology DC – Digitally Commutated Inverter Drive 53
    • 38. Optimized Sine Wave Advantage:  Smoother motor rotation  Improved motor efficiency Inverter output current wave Rough wave Smooth wave 54
    • 39. The DC-motor Principles  Stator = Coil  Rotor = Permanent Magnets Neodymium Ferrite Commutation by means of Inverter AC Wave Input 55
    • 40. The DC-motor Principles Reluctance brushless DC compressor DC = Digitally commutated Rotating stator field CurvedIron RotorElectrical field in the Neodymiumstator not the rotor Magnetsno need for brushes 56
    • 41. Inverter Drive System+V • The inverter control adjusts the supply frequency • Thus the rotational speed of the T(sec) compressor is controlled • Exactly the right amount of refrigerant gas is pumped to meet-V the cooling requirements 60 Hz Frequency Inverter Box Multi-Step Principle+V Load T(sec) 17capacity steps VRV-s-V 22 capacity steps on WC 37 capacity steps VRV Frequency 52 to 210 (Hz) 57
    • 42. Multiple Step Control Standard HVAC system  1 to 2 stages of capacity  Uses mechanical unloading techniques VRV uses inverter technology  Electronic inverter varies compressor rotational speed in steps Unloader, Two Speed or Multi-Step Control Principle Two Compressors Load Load 50% 100% 52~210Hz Compressor capacity Applied frequency 58
    • 43. Other Inverter Benefits  Very low startup amperage  No locked rotor amps  No stress on windings or compressor frame  No “light flicker”  Lubrication of bearings increases before speed increases  System pressures increase gradually reducing noise and stress on piping  Quiet compressor startup  Idea for backup generator and photo voltaic solar applications 59
    • 44. Inrush CurrentNon 5 to 6 times RLAInverter 132 amps Rush CurrentCurrent 22 amps Running 0 amps Current Time When starting up, Inverter raises frequency smoothly, eliminating the rush current.Current 31.9 amps ? No heat “generation”, only move heat 4 amps Running from the outside to the inside. 0 amps Current TimeAltherma Inverter 60
    • 45. Daikin Altherma Application
    • 46. Balance Point Strategies• Mono-Valent• Mono-Energetic• Bi-Valent 62
    • 47. Daikin Altherma System Applications Ideal for New Construction Ideal for New Construction Mono-Valent Mono-Energetic 100% Heat pump coverage : Best balance between investment cost selection of bigger capacity and and running cost, results in lowest higher investment cost heat pump Lifecycle Cost Back up heater* Heat Hydro Radiators/ Back up heater is only used pump box floor heating Heat Hydro Radiators/ below the equilibrium point pump box floor heating Mono-valent (heatpump only) Heatpump capacity Mono-energetic (heatpump + heater) Coldest day of the year Coldest day of the year Heating requirementHeating requirement Heatpump capacity Equilibrium point Covered by heatpump Spare heatpump 10% Covered by heatpump capacity Covered by back up heater Spare heatpump 100% 90% capacity Hours Hours *Back up heater is mounted inside the hydro box 63
    • 48. Daikin Altherma System ApplicationsIdeal for Refurbishment/Upgrade Space Heating with an Auxiliary Boiler Bi-Valent 3.Space heating application by either the Daikin Altherma Hydrobox or by an Auxiliary boiler connected in the system. 4.An auxiliary contact decides whether the Hydrobox or the boiler will operate. 5.The auxiliary contact can be an outdoor temperature thermostat, an electricity tariff contact, a manually operated contact etc. 6.Domestic Hot Water in such an application is always produced by the System Tank connected to the Hydrobox, including when the boiler is in operation for space heating. 64
    • 49. Did you know that ... Floor heating systemsresult in a moreuniform temperaturedistribution in the roomcompared to radiators. 65
    • 50. Temperature profiles 8.9 ft 6 ft 4 in °F 60.8 64.4 68 71.6 75.2 60.8 64.4 68 71.6 75.2 60.8 64.4 68 71.6 75.2 57.2 60.8 64.4 68 71.6 75.2 FCU / air to air Comfort Discomfort The highest heating comfort is achieved with a floor heating system With floor heating, the room temperature can be reduced by 3.6°F Because of the large heating surface and low water temperature 77-104°F, floor heating is perfect to combine with a heat pump 66
    • 51. Installation Examples Advantage: Low Initial Cost Disadvantage: Poor Temperature Control SBI: Supplied by Installer 67
    • 52. Installation Examples Advantage: Separate Temperature Control of each Heating Loop for Improved Comfort Disadvantage: Higher Initial Cost 68
    • 53. Installation Examples Advantage: Low Initial Cost. Heating & Cooling are Separated by M13 Valve. Disadvantage: Poor Temperature Control SBI: Supplied by Installer 69
    • 54. Daikin Altherma Installation Requirements
    • 55. Installation Requirements• Distance between outdoor and hydro-box (Outdoor & Monobloc).• Distances related to water pipe installation (Outdoor & Monobloc).• Refrigerant piping (Outdoor).• Attention points on the water circuit.• Installation Examples 71
    • 56. Installation Requirements ERLQ036, 048, 054BAVJU (Outdoor) *Standard 246 ft minimum 16.4 ft. With factory 10 ft* charge 98.4 ft 10 ft if recharging outdoor is 10 ft performed. 32.8 ftTo avoid big temperature change when To guarantee a minimum temperatureswitching from sanitary to cooling ( hot difference between outlet PHE and inlet tank draft) 72
    • 57. Installation Requirements 10 ft 32.8 ft 39.4 ft in length. To avoid big temperature change when switching from DHW to cooling ( hot draft) To guarantee a minimum temperature difference between outlet PHE and inlet DHW tank 73
    • 58. Installation Requirements Required Oil Trap ERLQ036, 048, 054BAVJU Since there is a possibility of oil held inside the riser piping flowing back into the compressor when stopped and causing liquid compression phenomenon. Install trap at each difference in height of 32.8 ft is required. •Trap installation spacing. A Outdoor unit B Indoor unit C Gas piping D Liquid piping E Oil trap H Install trap at each difference in height of 10 m Oil trap is not necessary when the outdoor unit is installed in a higher position than the indoor unit. Caution: Requirements for a trap 74
    • 59. Installation Requirements Refrigerant Piping Size & Additional Refrigerant Charging ERLQ036, 048, 054BAVJU ~ EKHBH/EKHBX054BA3/6VJU 75
    • 60. Installation Requirements Water CircuitInstallation of shut-off valves at inlet and outlet of hydro-box.Installation of drain valves at the lowest placesAir vents at the highest levelAll field piping must withstand the water pressure Water volume ERLQ036, 048, 054AVJU + EKHB/EKHX054BA3/6VJU EDLQ/EBLW036,048,054A6VJU  Minimum water volume – Heating only model: 5.3 gals. – Heating / Cooling model: 5.3 gals. 76
    • 61. Basic System Layout – Space Heating Only Hydro BoxOutdoor unit Backup Heater Refrigerant Plate heat exchanger Space heating 77
    • 62. Basic System Layout – Space Heating and DHW DHW mode Outdoor unit Backup Heater Refrigerant Plate heat exchangerSanitary Tank Max 176°F (80°C) Booster heater 3 way valve Max 55°C Space heating 78
    • 63. Basic System Layout – Space Heating and DHW Heating mode Outdoor unit Backup Heater Refrigerant Plate heat exchangerSanitary Tank Max 176°F (80°C) Booster heater 3 way valve Space heating 79
    • 64. Basic System Layout - Sanitary and Moderate Floor Cooling (cooling mode) Back up heater Backup Heater Outdoor unit To avoid condensation Refrigerant on the floor, LWE temperature should be higher than dewpoint.Sanitary Tank Max Plate heat exchanger 176°F (80°C) Booster heater 3 way valve Space heating 80
    • 65. Basic System Layout - Sanitary and Cooling (cooling mode) Outdoor unit Backup heater Refrigerant Plate heat exchangerSanitary Tank Max 176°F FCU for cooling (80°C) Booster heater 2 way valve 3 way valve Space heating 81
    • 66. Switchover Between Sanitary and Cooling (sanitary mode) HydroboxSanitary Tank Produces water of 55°C 3 way valve leads Max 10 ft (3m) the water to the sanitary tank FCU for cooling The water is cold but not circulating 82
    • 67. Switchover Between Sanitary and Cooling (transient) HydroboxSanitary Tank Produces cold water 3 way valve leads Warm water the water to the FCU FCU for cooling The water is warm but not circulating 83
    • 68. Switchover Between Sanitary and Cooling (cooling mode) HydroboxSanitary Tank Produces cold water 3 way valve leads the water to the FCU FCU for cooling The water is warm but not circulating 84
    • 69. Daikin Altherma Interface Control
    • 70. Remote Controller Back up heater symbol Booster heater symbol Pump on symbol Heating/Cooling on/off Compressor on symbol Space heating operation Space cooling operation Silent mode operationWeather depending control Temperature setpoint adjusment DHW heating operation DHW water temperature setpoint adjusmentController reference 86
    • 71. Questions?Thank you for your attention 87