Air to Water Low Temperature Heat Pump

1. Air to Water Heat PumpIntroduction

2. Air to Water Heat Pump Split System Monobloc DHW Solar Thermal

5. Introduce an electric hydronic system that heats and cools the space, and can supply domestic hot water.Eco-efficient air-to-water heat pump hydronic system.Introduced in Europe in 2005, a unique combination using existing technology.

20. 2. System Layout and Applications

21. 3. Balance Point Strategies

24. Selection conditions Typical conditions for the heating LWT are: 86 to 95°F (at design conditions) for floor heating 86 to 113°F (at design conditions) for fan coil units and 104 to 122°F (at design conditions) for low temperature radiators Typical conditions for cooling LWT are: 41 to 71°F (at design conditions) for fan coil unit

25. Why an ATW Heat Pump “All-thermal” functions embedded: heating, domestic hot water, cooling = all year comfort Or “Alternative thermal” system, friendly for the environment, using renewable energy sources 3 functions: Unique concept in the EU market cooling Domestic hot water heating Main product functions TOTAL CONCEPT FOR CLIMATE CONTROL IN RESIDENTIAL APPLICATIONS

26. 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

27. ATW Heat Pump Overview

29. Delivers considerable savings in energy costs

30. Delivers a significant contribution in the fight against CO2 emissions

31. Provide heating, cooling and domestic hot waterUser Interface Room Thermostat Outdoor Heat Pump Indoor Unit (Hydro Box) Solar Kit Domestic Hot Water Tank

32. Daikin Altherma Split Type Overview Ideal concept for a new house HYBRID system in combination with ALTHERMA 120 to 180 m²1292 to 1938 ft² Size of house: Domestic hot water tank Stainless steel3 sizes: 150, 200, 300 l(40, 53, 79 gallon) HE / CO Solar Kit HE / (CO) (*) (*) floor cooling has limited capacity (approx 20 W/m²) Solar kit = interface between solar panel and Altherma domestic hot water tank Floor heating Water temp: 30~35°C~40 86~95°F~104 Hydro-Box Domestic Hot Water Tank Outdoor Unit blank

34. Daikin Altherma LT Monobloc Overview Solar collectors Room thermostat Fan coil unit LT radiator Under floor heating Outdoor unit Domestic hot water tank

36. Comparison LT Split – LT Monobloc

37. Heating mode Cooling mode T ambient T ambient 77°F/25°C 109°F/43°C -4°F/-20°C 59°F/15°C Hydrobox Leaving Water Temperature 77°F/25°C 122°F/50°C 45°F/7°C 68°F/20°C Sanitary mode T ambient Booster heater 109°F/43°C 95°F/35°C -4°F/-20°C 77°F/25°C 194°F/90°C 122°F/50°C Hydrobox Leaving Water Temperature Sanitary Tank Outlet Temperature Operating range

38. Booster Heater Sensor Heat Exchanger Domestic hot water tank design DHW tank maximizes energy savings & warm water capacity Optimal placement of: Heat exchanger, Temperature sensor & Booster heater Control strategy Next slide Leaving water from Heat pump Return water

39. 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)

40. Domestic hot water recovery times Static Recovery Times (47°F/8°C outdoor ambient)

41. ATW Heat Pump Technology

42. Heat generation by heat pumps No heat “generation”, only move heat from the outside to the inside.

43. Expansion valve Condenser Evaporator Comp Electric power Heat pump principle

44. Heat Pump Concept Capture 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, Creating the heat energy or just bring it inside??? CO2 emissions - 0 No heat “generation”, only move heat from the outside to the inside.

45. Compressor Technology DC – Digitally Commutated Inverter Drive

47. Smoother motor rotation

48. Improved motor efficiencyInverter output current wave Rough wave Smooth wave

50. Rotor = Permanent MagnetsNeodymium Ferrite Commutation by means of Inverter AC Wave Input

51. The DC-motor Principles Reluctance brushless DC compressor DC = Digitally commutated Rotating stator field Curved Iron Rotor Neodymium Magnets Electrical field in the stator not the rotor no need for brushes

53. Thus the rotational speed of the compressor is controlled

54. Exactly the right amount of refrigerant gas is pumped to meet the cooling requirementsMulti-Step Principle +V Load T(sec) 17capacity steps VRV-s 22 capacity steps on WC 37 capacity steps VRV -V Frequency 52 to 210 (Hz)

56. 1 to 2 stages of capacity

57. Uses mechanical unloading techniques

58. VRV uses inverter technology

59. Electronic inverter varies compressor rotational speed in stepsUnloader, Two Speed or Two Compressors Multi-Step Control Principle Load Load 50% 100% 52~210Hz Compressor capacity Applied frequency

61. No locked rotor amps

62. No stress on windings or compressor frame

63. No “light flicker”

64. Lubrication of bearings increases before speed increases

65. System pressures increase gradually reducing noise and stress on piping

66. Quiet compressor startup

68. Balance Point Strategies Mono-Valent Mono-Energetic Bi-Valent

69. System Applications Ideal for New Construction Ideal for New Construction Mono-Energetic Mono-Valent Best balance between investment cost and running cost, results in lowest Lifecycle Cost 100% Heat pump coverage : selection of bigger capacity and higher investment cost heat pump

70. System Applications Ideal for Refurbishment/Upgrade Bi-Valent Space Heating with an Auxiliary Boiler Space heating application by either the Daikin Altherma Hydrobox or by an Auxiliary boiler connected in the system. An auxiliary contact decides whether the Hydrobox or the boiler will operate. The auxiliary contact can be an outdoor temperature thermostat, an electricity tariff contact, a manually operated contact etc. 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.

76. ATW Heat Pump Application /Installation Requirements

77. 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

78. *Standard minimum 16.4 ft. With factory charge 10 ft if recharging outdoor is performed. To guarantee a minimum temperature difference between outlet PHE and inlet tank To avoid big temperature change when switching from sanitary to cooling ( hot draft) Installation Requirements ERLQ036, 048, 054BAVJU (Outdoor) 246 ft 10 ft* 98.4 ft 10 ft 32.8 ft

79. 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

81. Refrigerant Piping Size & Additional Refrigerant Charging Installation Requirements ERLQ036, 048, 054BAVJU ~ EKHBH/EKHBX054BA3/6VJU

83. Installation of drain valves at the lowest places

84. Air vents at the highest level

86. Heating only model: 5.3 gals.

98. ATW Heat Pump Interface Control

99. Remote Controller Booster heater symbol Back up heater symbol Heating/Cooling on/off Pump on symbol Space heating operation Space cooling operation Compressor on symbol Silent mode operation Weather depending control DHW heating operation Temperature setpoint adjusment DHW water temperature setpoint adjusment Controller reference

100. Questions? Thank you for your attention