64 LWZ with E.V.I High efficiency HYBRIDheat pumps LWZ COP≥4,1 COP≥4,1 COP≥4,1 COP≥4,1 COP≥4,1 INVERTER INVERTER INVERTER INVERTER INVERTER 65C 58C 65C 58C 43C 43C 63C 63C 65C 58C 43C 63C DC DC DC DC DC -15C -20C -15C -20C -15C -20C 12 dB(A)(Optional). damping system which allows a noise reduction of about 10- vibrationfloating special a of use the to thanks low tremely ex is noise water.The cold produce to able also are sions RVver The standardpump. sourceheata to air superior be will COP The unit. of the efficiency operating the maximize to conditions ambient low at series in work source exchangerswill both but pump heat source air an primarily is unit The exchanger). heat type plate water a other the and coil finned source, air (one side source the on exchangers heat TWO have they that is units LWZ of feature main The ting. hea- for technology pump heat of use for schemes support ting mode whilst suitable for use in those countries that have hea- in only operateto locked and set factory is version HH supplied with reverse cycle valve used for winter defrost; the and water. exchanger hot aredomestic versions the All forhydraulic circuit heat separate a by version P4S the in and 3-way-valve an external of activation the through version P2S the water, in hot domestic produce can versions Some versions. pipe 4 and pipe 2+2 pipe, 2 in available are units LWZtemperature. ambient -20°C to down operate can and 65°C to up water produce to able are mode, heating on zed optimi- been have They heating. when efficiency maximum stems or for those applications where it is necessary to have heatingsy radiant with application for designed specifically The high efficiency hybrid heat pumps LWZ series have been - - - Versions P4S P4U P2S P2U NN XL RV HH 2+2 pipe systems with domestic hot water hot production. domestic with systems pipe 2+2 4 pipesystems heating/cooling. duction by external 3 way valve. pro- water hot domestic with systems pipe 2 production. water hot domestic without systems pipe 2 Ultra low noise. Super low noise. Reversible heating/cooling. Heating only. A + A + Heating only version (HH)

XL/HH 252 302 452 502 602 752 852 Heating capacity (EN14511)(1) kW 16,6 21,2 27,5 34,2 41,9 48,3 53,5 Total input power (EN14511)(1) kW 6,1 7,7 9,9 12,1 15,2 17,2 19,9 COP (EN14511) (1) W/W 2,71 2,75 2,78 2,82 2,76 2,80 2,68 Energy Class in low temperature (2) A++ A+ A+ A+ A++ A++ A+ SCOP low temperature (2) kWh/kWh 3,96 3,75 3,74 3,71 3,94 3,95 3,43 ŋs,h low temperature (2) % 155,3 146,8 146,7 145,3 154,6 154,9 134,3 Energy Class in medium temperature (2) A+ A+ A+ A+ A++ A+ A+ SCOP medium temperature (2) kWh/kWh 3,18 3,03 3,05 3,12 3,21 3,16 2,87 ŋs,h medium temperature (2) % 124,3 118,2 119,0 121,6 125,5 123,4 111,9 Power supply V/Ph/Hz 400/3+N/50 400/3+N/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 Max input current standard unit A 20,5 24,1 34,1 39,3 46,2 56,2 69,2 Peak current standard unit A 62,9 83,2 119,1 148,7 143,2 170,2 210,7 Peak current standard unit with soft starter (optional) A 37,2 48,2 68,6 84,7 84,2 100,2 123,7 Max air flow in heating mode m3/h 10000 10000 16000 16000 32000 32000 32000 Fans n° 2 2 1 1 2 2 2 / Circuits n°/n° 2/1 2/1 2/1 2/1 2/1 2/1 2/1 LWZ Global warming potential (GWP) 2088 2088 2088 2088 2088 2088 2088 charge Kg 7,7 11,6 11,9 14,8 14,9 15,2 22,5

Equivalent CO2 charge t 16,1 24,2 24,8 30,9 31,1 31,7 47,0 Max sound power level in heating mode (3) dB (A) 70 70 72 72 74 74 74 Max sound pressure level in heating mode (4) dB (A) 38 38 40 40 42 42 42

XL/HH 1002 1202 1504 1704 2004 2404 Heating capacity (EN14511)(1) kW 61,0 72,3 99,2 106,3 120,9 138,5 Total input power (EN14511)(1) kW 23,0 26,5 34,9 38,1 42,6 50,2 COP (EN14511) (1) W/W 2,65 2,73 2,84 2,79 2,84 2,76 Energy Class in low temperature (2) A+ A+ A++ A++ A+ A+ SCOP low temperature (2) kWh/kWh 3,34 3,41 3,45 3,43 3,45 3,43 ŋs,h low temperature (2) % 130,6 133,4 134,9 134,1 134,9 134,1 Energy Class in medium temperature (2) A+ A+ A+ A+ A+ A+ SCOP medium temperature (2) kWh/kWh 2,85 2,87 2,89 2,88 2,89 2,88 ŋs,h medium temperature (2) % 111,0 111,8 112,7 112,3 112,7 112,3 Power supply V/Ph/Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 Max input current standard unit A 74,0 79,0 112,4 138,4 148,0 158,0 Peak current standard unit A 215,0 225,0 228,0 282,0 287,0 318,0 Peak current standard unit with soft starter (optional) A 128,0 138,0 132,0 170,0 175,0 190,0 Max air flow in heating mode m3/h 38000 38000 48000 56000 70000 70000 Fans n° 2 2 4 4 6 6 Compressors / Circuits n°/n° 2/1 2/1 4/2 4/2 4/2 4/2 Global warming potential (GWP) 2088 2088 2088 2088 2088 2088 Refrigerant charge Kg 34,4 34,8 45,2 55,0 61,0 67,0

Equivalent CO2 charge t 71,8 72,7 94,3 114,8 127,3 139,8 Max sound power level in heating mode (3) dB (A) 79 79 77 79 80 80 Max sound pressure level in heating mode (4) dB (A) 47 47 45 47 48 48

Performances are referred to the following conditions: (2) Average conditions, variable - Reg EU 811/2013 (1) Heating: Ambient temperature -7°C DB, -8°C WB, water outlet temperature 35°C. Integrative (3) Sound power level in accordance with ISO 3744. source heat exchenger not activated. (4) Sound pressure level at 10 mt from the unit in free field conditions, in accordance with ISO 3744.

www.hidros.eu 65 66 LWZ Heating only version (HH) source heat exchenger notactivated. (1) Performances are referred to thefollowing conditions: Max soundpower level inheating mode Max soundpower level inheating mode Max soundpressure level inheating mode Equivalent CO Refrigerant charge Global warming potential (GWP) Compressors /Circuits Fans Max airflow inheating mode Peak current standard unitwithsoft starter (optional) Peak current standard unit Max inputcurrent standard unit Power supply ŋs,h mediumtemperature SCOP mediumtemperature Energy Classinmediumtemperature ŋs,h low temperature SCOP low temperature Energy Classinlow temperature COP (EN14511) Total input power (EN14511) Heating capacity (EN14511) Max soundpressure level inheating mode Equivalent CO Refrigerant charge Global warming potential (GWP) Compressors /Circuits Fans Max airflow inheating mode Peak current standard unitwithsoft starter (optional) Peak current standard unit Max inputcurrent standard unit Power supply ŋs,h mediumtemperature SCOP mediumtemperature Energy Classinmediumtemperature ŋs,h low temperature SCOP low temperature Energy Classinlow temperature COP (EN14511) Total inputpower (EN14511) Heating capacity (EN14511) NN/HH NN/HH Heating: Ambient temperature -7°CDB, -8°CWB, water outlet temperature 35°C.Integrative 2 2 charge charge (1) (1) (2) (2) (2) (2) (2) (2) (2) (2) (1) (1) (1) (1) (2) (2) (2) (2) (3) (3) (4) (4) kWh/kWh kWh/kWh kWh/kWh kWh/kWh V/Ph/Hz V/Ph/Hz dB (A) dB (A) dB (A) dB (A) W/W W/W n°/n° n°/n° m m kW kW kW kW Kg Kg n° n° % % % % A A A A A A 3 3 t t /h /h 400/3+N/50 400/3/50 10000 124,3 155,3 2088 252 16,1 37,2 62,9 20,5 2,71 3,18 3,96 15,7 38000 1002 A++ 111,0 130,6 128,0 215,0 2/1 7,7 5,8 2088 A+ 34 66 71,8 34,4 74,0 2,87 2,85 3,34 60,6 21,1 2 2/1 A+ A+ 37 69 2 400/3+N/50 10000 118,2 146,8 2088 302 (4) (3) (2) 24,2 48,2 83,2 11,6 24,1 2,72 3,03 3,75 20,0 2/1 7,3 400/3/50 A+ A+ 34 66 2 Soundpressure level at 10mt from theunitinfree field conditions, inaccordance withISO3744. 38000 1202 Sound power level inaccordance withISO3744. Average conditions, variable - Reg EU811/2013 111,8 133,4 138,0 225,0 2088 72,7 34,8 79,0 2,79 2,87 3,41 67,6 24,2 2/1 A+ A+ 38 70 2 400/3/50 16000 119,1 119,0 146,7 2088 452 24,8 68,6 11,9 34,1 2,76 3,05 3,74 25,6 2/1 9,3 A+ A+ 34 66 1 400/3/50 48000 1504 112,7 134,9 112,4 132,0 228,0 2088 2,75 2,89 3,45 93,6 34,0 45,2 94,3 A++ 4/2 A+ 39 71 4 400/3/50 16000 148,7 121,6 145,3 2088 502 30,9 84,7 14,8 39,3 2,90 11,8 3,12 3,71 34,3 2/1 A+ A+ 36 68 1 400/3/50 56000 1704 114,8 112,3 134,1 138,4 170,0 282,0 108,6 2088 55,0 2,73 2,88 3,43 39,8 A++ 4/2 A+ 40 72 4 400/3/50 32000 143,2 125,5 154,6 2088 602 31,1 84,2 14,9 46,2 2,77 14,0 3,21 3,94 38,9 A++ A++ 2/1 36 68 2 400/3/50 70000 2004 127,3 112,7 134,9 148,0 175,0 287,0 119,7 2088 61,0 2,72 2,89 3,45 44,0 4/2 A+ A+ 40 72 400/3/50 6 32000 100,2 170,2 123,4 154,9 2088 752 31,7 15,2 56,2 2,78 16,0 3,16 3,95 44,6 A++ 2/1 A+ 36 68 2 400/3/50 2404 32000 123,7 210,7 111,9 134,3 2088 852 47,0 22,5 69,2 2,74 18,9 2,87 3,43 51,7 ------2/1 A+ A+ 37 69 2 Reversible heating/cooling version (RV)

XL/RV 252 302 452 502 602 752 852 Heating capacity (EN14511)(1) kW 16,6 21,2 27,5 34,2 41,9 48,3 53,5 Total input power (EN14511)(1) kW 6,1 7,7 9,9 12,1 15,2 17,2 19,9 COP (EN14511) (1) W/W 2,71 2,75 2,78 2,82 2,76 2,80 2,68 Energy Class in low temperature (2) A++ A+ A+ A+ A++ A++ A+ SCOP low temperature (2) kWh/kWh 3,96 3,75 3,74 3,71 3,94 3,95 3,43 ŋs,h low temperature (2) % 155,3 146,8 146,7 145,3 154,6 154,9 134,3 Energy Class in medium temperature (2) A+ A+ A+ A+ A++ A+ A+ SCOP medium temperature (2) kWh/kWh 3,18 3,03 3,05 3,12 3,21 3,16 2,87 ŋs,h medium temperature (2) % 124,3 118,2 119,0 121,6 125,5 123,4 111,9 Cooling capacity (EN14511) (3) kW 22,4 27,7 36,7 46,2 54,7 62,8 71,0 Total input power (EN14511)(3) kW 7,3 9,1 11,9 15,1 17,8 20,6 23,2 EER (EN14511) (3) W/W 3,06 3,05 3,07 3,05 3,07 3,05 3,05 Power supply V/Ph/Hz 400/3+N/50 400/3+N/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 Max input current standard unit A 20,5 24,1 34,1 39,3 46,2 56,2 69,2 Peak current standard unit A 62,9 83,2 119,1 148,7 143,2 170,2 210,7 Peak current standard unit with soft starter (optional) A 37,2 48,2 68,6 84,7 84,2 100,2 123,7 3

Max air flow in heating mode m /h 10000 10000 16000 16000 32000 32000 32000 LWZ Fans n° 2 2 1 1 2 2 2 Compressors / Circuits n°/n° 2/1 2/1 2/1 2/1 2/1 2/1 2/1 Global warming potential (GWP) 2088 2088 2088 2088 2088 2088 2088 Refrigerant charge Kg 7,7 11,6 11,9 14,8 14,9 15,2 22,5

Equivalent CO2 charge t 16,1 24,2 24,8 30,9 31,1 31,7 47,0 Max sound power level in heating mode (3) dB (A) 70 70 72 72 74 74 74 Max sound pressure level in heating mode (4) dB (A) 38 38 40 40 42 42 42

XL/RV 1002 1202 1504 1704 2004 2404 Heating capacity (EN14511)(1) kW 61,0 72,3 99,2 106,3 120,9 138,5 Total input power (EN14511)(1) kW 23,0 26,5 34,9 38,1 42,6 50,2 COP (EN14511) (1) W/W 2,65 2,73 2,84 2,79 2,84 2,76 Energy Class in low temperature (2) A+ A+ A++ A++ A+ A+ SCOP low temperature (2) kWh/kWh 3,34 3,41 3,45 3,43 3,45 3,43 ŋs,h low temperature (2) % 130,6 133,4 134,9 134,1 134,9 134,1 Energy Class in medium temperature (2) A+ A+ A+ A+ A+ A+ SCOP medium temperature (2) kWh/kWh 2,85 2,87 2,89 2,88 2,89 2,88 ŋs,h medium temperature (2) % 111,0 111,8 112,7 112,3 112,7 112,3 Cooling capacity (EN14511) (3) kW 79,4 90,0 126,0 140,0 165,0 186,0 Total input power (EN14511)(3) kW 26,9 30,7 41,8 49,1 52,5 64,1 EER (EN14511) (3) W/W 2,95 2,93 3,01 2,85 3,14 2,90 Power supply V/Ph/Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 Max input current standard unit A 74,0 79,0 112,4 138,4 148,0 158,0 Peak current standard unit A 215,0 225,0 228,0 282,0 287,0 318,0 Peak current standard unit with soft starter (optional) A 128,0 138,0 132,0 170,0 175,0 190,0 Max air flow in heating mode m3/h 38000 38000 48000 56000 70000 70000 Fans n° 2 2 4 4 6 6 Compressors / Circuits n°/n° 2/1 2/1 4/2 4/2 4/2 4/2 Global warming potential (GWP) 2088 2088 2088 2088 2088 2088 Refrigerant charge Kg 34,4 34,8 45,2 55,0 61,0 67,0

Equivalent CO2 charge t 71,8 72,7 94,3 114,8 127,3 139,8 Max sound power level in heating mode (4) dB (A) 79 79 77 79 80 80 Max sound pressure level in heating mode (5) dB (A) 47 47 45 47 48 48

Performances are referred to the following conditions: (3) Cooling (RV versions Only): ambient temperature 35°C, water temperature 12/7°C. Integrative (1) Heating: Ambient temperature -7°C DB, -8°C WB, water outlet temperature 35°C. Integrative source heat exchenger not activated. source heat exchenger not activated. (4) Sound power level in accordance with ISO 3744. (2) Average conditions, high temperature, variable - Reg EU 811/2013 (5) Sound pressure level at 10 mt from the unit in free field conditions, in accordance with ISO 3744.

www.hidros.eu 67 68 LWZ source heat exchenger notactivated. (2) source heat exchenger notactivated. (1) Performances are referred to thefollowing conditions: Reversible heating/cooling version (RV) Max soundpower level inheating mode Max soundpower level inheating mode Max soundpressure level inheating mode Equivalent CO Refrigerant charge Global warming potential (GWP) Compressors /Circuits Fans Max airflow inheating mode Peak current standard unitwithsoft starter (optional) Peak current standard unit Max inputcurrent standard unit Power supply EER (EN14511) Total input power (EN14511) Cooling capacity (EN14511) ŋs,h mediumtemperature SCOP mediumtemperature Energy Classinmediumtemperature ŋs,h low temperature SCOP low temperature Energy Classinlow temperature COP (EN14511) Total input power (EN14511) Heating capacity (EN14511) Max soundpressure level inheating mode Equivalent CO Refrigerant charge Global warming potential (GWP) Compressors /Circuits Fans Max airflow inheating mode Peak current standard unitwithsoft starter (optional) Peak current standard unit Max inputcurrent standard unit Power supply EER (EN14511) Total inputpower (EN14511) Cooling capacity (EN14511) ŋs,h mediumtemperature SCOP mediumtemperature Energy Classinmediumtemperature ŋs,h low temperature SCOP low temperature Energy Classinlow temperature COP (EN14511) Total inputpower (EN14511) Heating capacity (EN14511) NN/RV NN/RV Cooling (RV versions Only):ambient temperature 35°C, water temperature 12/7°C.Integrative Heating: Ambient temperature -7°CDB, -8°CWB, water outlet temperature 35°C.Integrative 2 2 charge charge (3) (3) (1) (1) (2) (2) (2) (2) (2) (2) (3) (3) (2) (2) (1) (1) (1) (3) (1) (3) (2) (2) (2) (2) (4) (4) (5) (5) kWh/kWh kWh/kWh kWh/kWh kWh/kWh V/Ph/Hz V/Ph/Hz dB (A) dB (A) dB (A) dB (A) W/W W/W W/W W/W n°/n° n°/n° m m kW kW kW kW kW kW kW kW Kg Kg n° n° % % % % A A A A A A 3 3 t t /h /h 400/3+N/50 400/3+N/50 124,3 155,3 9000 2088 252 35,4 61,1 18,7 16,1 2,64 21,4 2,71 3,18 3,96 15,7 27000 1002 A++ 123,7 209,0 111,0 130,6 2/1 7,7 8,1 5,8 2088 A+ 34 66 68,0 71,8 34,4 3,05 2,87 2,85 3,34 79,3 26,0 60,6 21,1 2/1 1 A+ A+ 37 69 3 400/3+N/50 400/3+N/50 118,2 146,8 9000 2088 (5) (4) (3) 302 46,4 81,4 22,3 24,2 11,6 2,51 10,5 26,5 2,72 3,03 3,75 20,0 2/1 7,3 A+ A+ 34 66 1 Sound pressure level at 10mt from theunitinfree field conditions, inaccordance withISO3744. Sound power level inaccordance withISO3744. Average conditions, high temperature, variable - Reg EU811/2013 29000 1202 138,0 225,0 111,8 133,4 2088 70,0 72,7 34,8 2,73 2,79 2,87 3,41 88,0 32,2 67,6 24,2 2/1 A+ A+ 38 70 3 400/3+N/50 117,5 119,0 146,7 9000 2088 452 67,1 32,5 24,8 11,9 2,52 14,1 35,6 2,76 3,05 3,74 25,6 2/1 9,3 A+ A+ 34 66 400/3+N/50 1 44000 1504 113,0 132,0 228,0 112,7 134,9 120,0 2088 2,85 2,75 2,89 3,45 42,1 93,6 34,0 94,3 45,2 A++ 4/2 A+ 39 71 4 400/3+N/50 18000 147,7 121,6 145,3 2088 502 83,8 38,3 30,9 14,8 2,82 16,2 45,7 2,90 11,8 3,12 3,71 34,3 2/1 A+ A+ 36 68 2 400/3+N/50 48000 1704 114,8 136,0 170,0 282,0 112,3 134,1 132,0 108,6 2088 55,0 2,85 2,73 2,88 3,43 46,3 39,8 A++ 4/2 A+ 40 72 6 400/3+N/50 18000 140,2 125,5 154,6 2088 602 81,2 43,1 31,1 14,9 2,87 18,6 53,5 2,77 14,0 3,21 3,94 38,9 A++ A++ 2/1 36 68 2 400/3+N/50 60000 2004 127,3 146,0 175,0 287,0 112,7 134,9 155,0 119,7 400/3+N/50 2088 61,0 2,65 2,72 2,89 3,45 58,5 44,0 4/2 A+ A+ 40 72 6 18000 167,2 123,4 154,9 2088 752 97,2 53,2 31,7 15,2 2,71 22,5 61,1 2,78 16,0 3,16 3,95 44,6 A++ 2/1 A+ 36 68 2 400/3+N/50 2404 27000 120,7 207,7 111,9 134,3 2088 852 66,2 47,0 22,5 3,01 22,9 69,0 2,74 18,9 2,87 3,43 51,7 ------2/1 A+ A+ 37 69 3 Principle of operation The use of the water source only in harsh environ- mental conditions, allows the unit to operate with the air source for most of the time, integrating the power missing with the water but also ensuring an extreme reduction of water consumption. The applications of hybrid heat pumps are absolutely interesting in those cases where supplementary sources of different nature are available at lower cost. The integrated power from the water heat exchanger to water is about 30% of the power unit, in this 35 °C way there are not needed high cost of adduction. E.V.I. Some water sources used: 65 °C - Integrative source through the use of well water -20 °C - Integrative source through the use of geothermal - Integrative source through the use of wastewater - Integrative source through the use of solar panels. +10 °C LWZ

Performance comparison C.O.P. In hybrid LWZ units and in LZT unit 6 The graph shows the evolution of LWZ units C.O.P. (curves A, B, C) C.O.P. at different external temperatures (with user water produced at 35 °C), compared to a unit of equal power series LZT (curve D). 5 The curves A, B, C refer to different conditions of the water source and, in particular: A Curve A: 10/7 °C, Curve B: 3/0 °C, Curve C: 0/-3 °C. As can be seen 4 the performance difference is always increased with decreasing B C outdoor temperature to fit to the maximum value in correspond- 3 ence of -20°C outside. D

2

1 °C -20 -15 -10 -5 0 5 10 15 20

Operation limits

(All versions) (RV versions Only) 70 30

60 20

50 10

40 0

30 -10 Water temp. production (°C) production temp. Water (°C) production temp. Water

20 -20 -20 -10 0 10 20 30 40 50 -20 -10 0 10 20 30 40 50 Ambient temperature (°C) Ambient temperature (°C)

Heating mode Cooling with head pressure control and glycol

Cooling with head pressure control Cooling with head pressure control and glycol

Cooling with head pressure control

www.hidros.eu 69 70 LWZ erant charge of the unit compared to a traditional shell-in-tube traditional a to compared unit the of charge erant refrig the - of reduction massive a exchangerin of results type this of use The steel. stainless 316 ex AISI heat from manufactured changer, type plate welded, braze a is exchanger heat user The User heat exchangers +integration fans. lowof rotationuse the enabling thus low hence noise) (and speed drop pressure side air low a guarantees design the Furthermore, panded into the aluminium fins in order to maximise . 0,1mm thick aluminium fins with the tubes being mechanically ex and pipes copper 3/8” from made is exchanger heat source The Source heat exchanger when thecompressor isinstand-by. the front panel of the unit. The crankcase heater is always poweredby is enclosure this to Access operating. is unit the if even tained main be to them enabling thus stream air the separatedfrom be areseparateTheymounted a tor winding. in orderenclosuretoin and thermal overload protection by a klixon embedded inthe mo- crankcasecompressorsa tandem.The with supplied areall heater perfor significant mance improvement. In all units the compressors with are connected in pressures, evaporating and condensing generateslargercompressortechnologypressureratio betweena This capacity. the increases refrigerant liquid of ume vol main the of cooling sub additional The scroll. stage single a with possible that beyond temperatures) (and levels to pressure the raise to compressor the enabling thus gas compressed the of in the . This cold vapour reduces the temperature The superheated vapour is then injected into an intermediate port produced issuperheated. vapour the evaporatedand is cooler. liquid sub Any a as operates exchangerheat intoa injectedliquid/gasthat producedis mixture temperature low The valve. expansion an through expanded and process begins when a portion of the condenser liquid is extracted The cooling. inter-stage built-in with compressor two-stage a to and efficiency. capacity Each scroll compressor used boosts in these units is similar significantly that procedure a process, pression com- the of middle the into vapour refrigerant injecting involves technology The Injection.” Vapour “Enhanced E.V.I.forcy. stands ogy, improvingversatile of a system method efficien- and capacity scrolluse compressorsUnits E.V.I.thatarewith equipped technol Compressors for refrigerant vapour injection. valve expansion additional an plus an as used is that exchangerheat steel stainless AISI316 an includes also circuit The regulations).trol,pressurePED safety with (for compliancedevice con and maintenance for valves receiver,Schrader liquid valves, check valve, reversing way 4 equalizer, external with mode) ing two thermal expansion valves (one for cooling mode, one for heat drier,filter glass, sight includes: circuitrefrigerant The 97/23. ISO with accordance in performed being welding and components brazing all with name brand recognised internationally using bled assem- is circuit refrigerant The R410A. is utilised refrigerant The Refrigerant circuit The standard colour oftheunitsisRAL9018. stainless steel. from made are used rivets and screws All panels. removable with is self-supporting The frame corrosion. against protection imum polyurethane powder enamel and stoved at 180°C to provide max with painted steel, sheet hot-galvanised from made are units All Frame ------Saving” function, supplied in a separate plastic box, which can be can which box, plastic separate a in supplied function, Saving” units are also fitted with a temperature probe sensor with “Energy All switch. flow conditions), ambient on depending speed the adjust to and cycle defrost the optimize to (used transducer sure pres - protection, thermal fan, air protection, thermal compressor P4U versionstemperaturereturn(only sensorsand supply ter perature sensor installed on users water output, domestic hot wa- temperaturesensor,returnwater tem protection user protections: and controlsfollowing the with supplied are units All Control andprotection devices over (heat pumps only)andgeneral alarm. has volt free contacts for remote ON-OFF, Summer/ winter change board terminal The contactors. pump and contactorsfan tactors, controlpressorfuses, circuitautomatic breakers, compressor con direction), thermal wrongoverloads (protectionthe of pumps andin fans),rotate com- they if damaged be can compressors (scroll the power supply in the event that the phase sequence is incorrect disables that relay sequence a switch, main units: all on standard the as supplied are removingcomponentsfollowing The unit. the of front panel by achieved is enclosure the to Access EN60204. CEE standards compatibility electromagnetic the re- of the quirements with comply to order in manufactured is enclosure The Electric enclosure BUS protocols. MOD- customer, using the solutions with conjunction evaluate,in and discuss can department technical Hidros The management. and control remote enabling thus system BMS site a to connect microprocessor the option), an be configuredcan in order it to for (available as required If pump. circuit water hot domestic the and pump circuit heating the both and heating) or DHW to valve (for diverting modulating port a three of operation the etc), panels solar , heaters, (electric sources heating other with gration inte- the program, anti-legionella the manages also control The andfor summer/ winter change over. conditions) ambient severe in operating (when defrost automatic for set is microprocessor The icons. operational all ing sors), alarm reset. The control panel is supplied with display show compres- multiple (For sequence starting automatic compressor watertemperature,antifreezethe timing, protection, compressor of control functions: following the controls microprocessor The controls. microprocessor with standard as supplied are units All Microprocessors of IP54. protection rating moisture a have and protection overload thermal operated fan speed controller. The motorsa arepressure fitted with integrated with fitted are units all standard, As rpm). 450 (approx type poles 12 arefans the versionsNN the In rpm. proximately900 at ap- rotating type 8 poles motors electric are The mountings. tion of EN 60335. They are fixed to the unit frame via rubber anti-vi- bra- requirements the with complying guard fansafety a with complete are statically anddynamically balancedandare supplied The fans are direct drive axial type with aluminium aerofoil blades, Fans ter sidefor antifreeze protection. exchanger is fitted with a temperature sensor on the discharge Each wa- (accessory). heater antifreeze an with fitted be can and rial mate- cell close flexible exchangerswith insulatedThe factoryare of theunit. overall dimensions the in reduction a advantageis further A type. ), high pressure manual reset, low pressure automatic reset, automatic pressure low reset, manual pressure high ), P4S and P4S - - - used to stop the pump use during periods of stand-by, when the from the supporting frame of the unit by soft steel springs that water temperature reaches the set point. Doing this the power have a high damping power. Within the enclosure, the compres- consumption of the unit is strongly reduced. The probe sensor sors are mounted on rubber shock absorbers on the floating base must be positioned in the hydraulic compensator present at the plate. The enclosure is manufactured from galvanized steel sand- screening technique. The domestic hot water circuit (only versions wich panels that have a micro-perforated inner skin and a core of P4S and P4U) is already equipped with this probe, but it must be 50 mm thick, high density (40 kg/m3) mineral wool. The entire installed in the user circuit. arrangement provides a double damping system and acoustic at- tenuation. The compressor refrigerant pipes are connected to the Noise Reduction refrigerant circuit through “anaconda” flexible connections. Flex- All units are supplied, as standard, with the latest ‘Floating Frame’ ible connections are also used on the water pipework within the technology that completely isolates the compressors from the unit. The combination of these systems results in an overall noise main casing, thereby eliminating vibration and noise from this reduction in the region of 10-12 dB(A). source. The ‘Floating Frame’ is a special vibration and acoustic damping system that consists of a base plate and acoustic enclo- sure that houses the compressors. The base plate is separated

Versions

HH heating only versions are available in the P2U, P2S and P4S con- LWZ figuration only.

Version P2U This is a two pipe version that can produce hot water for heating (HH heating only) and hot or cold water in the RV version. The RV is used with two pipe water based change-over systems. It is not able to produce domestic hot water. P2U Version P2S This is a two pipe version that can, in addition to producing hot water for heating (HH version) and hot and cold water in the RV version can also generate domestic hot water. The controller has dual heating set points (heating and DHW) and can also control a three port diverting valve that directs the DHW to the cylinder. DHW production has priority irrespective of the mode of operation of the unit. The unit is normally used with two pipe water based change-over systems. P2S

Version P4S This is a four pipe version that can produce hot water for heat- ing (HH version), hot and cold water for cooling and domestic hot water (only RV versions) in all operational modes using an inde- pendent water circuit. When cooling, DHW generation is by heat recovery. This unit is normally used with two pipe water based change-over systems with the DHW circuit being separate.

P4S Version P4U This is a four pipe version that provides a modern approach to four pipe water based systems. Instead of using a and , this unit can generate hot water in one circuit, cold water in the other - + circuit either individually or simultaneously. When operating in si- multaneous mode the heating capacity is equal to the cooling duty plus the power input to the compressors. The operating efficiency in this mode is extremely high. Domestic hot water production for this version is not available.

P4U

www.hidros.eu 71 72 LWZ A Electronic thermostatic valve Serial interface card RS485 with MODBUSprotocol Remote control panel Electronic Soft starter Hydraulic circuit antifreeze kit Rubber anti-vibration mountings User andrecovery heat exchanger antifreeze kit Hydraulic kitwithtwo pumps withouttank -recovery circuit Hydraulic kitwithonepumpwithouttank -recovery circuit Hydraulic kitwithtwo pumps withouttank -usercircuit Hydraulic kitwithonepumpwithouttank -usercircuit Hydraulic kitwithtwo pumps withtank -usercircuit Hydraulic kitwithonepumptank -usercircuit Unit performance optimizer Cascade control system viaRS485 High static pressure E.C. fans (XLversions) E.C. fans (NNversions) Condensate discharge driptray withantifreeze heater Floating frame technology Summer/Winter digital input Remote ON/OFFdigital input Specific software foroperation priorities Fresh airtemperature probe for set-point compensation Evap/cond.press. control by transducer andfan speed control User water strainer Flow switch LWZ 1202/XL 1002/XL F1 852/XL 752/XL 602/XL 502/XL 452/XL 302/XL 252/XL Mod. B Frame F3 F3 F3 F3 F3 F2 F2 F1 F1 E.C. fans Fans C Frame XLVersion 2 2 2 2 2 1 1 2 2 A (mm) A 1820 1820 1820 1820 1820 1820 1820 1470 1470 B F2 B (mm) 2900 2900 2900 2900 2900 2200 2200 1900 1900 C (mm) 1150 1150 1150 1150 1150 1150 1150 880 880 C RAEV2/4 A2NTU A1NTU 880 850 810 760 700 490 450 340 330 A2NTR A1NTR A2ZZU A1ZZU XL/NN Kg SOND SODP KAVG BRCA DCCF VECC SGRS VECE VECE VTEE DSSE PCRL INSE KP A F3 252 – – – B

1202/XL 1002/XL 852/XL 752/XL 602/XL 502/XL 452/XL 302/XL 252/XL Mod. 302 – – –

Frame F4 F3 F3 F3 F2 F2 F2 F4 F4 452

C Fans Frame NNVersion 3 2 2 2 1 1 1 3 3 502 A

A (mm) F4 1820 1820 1820 1820 1820 1820 1820 1820 1820 Standard, 602

B (mm) B 3900 2900 2900 2900 2200 2200 2200 3900 3900 752 Optional, –Not available.

C (mm) 1150 1150 1150 1150 1150 1150 1150 1150 1150 852

1050 1170 1140 790 760 700 470 450 430 Kg 1002 C

LWZ 1202 1504 1704 2004 2404 Flow switch User water strainer Evap/cond.press. control by transducer and fan speed control DCCF Fresh air temperature probe for set-point compensation SOND Specific software for operation priorities Remote ON/OFF digital input Summer/Winter digital input Floating frame technology XL/NN Condensate discharge drip tray with antifreeze heater BRCA E.C. fans (NN versions) VECE E.C. fans (XL versions) VECE High static pressure E.C. fans VECC Cascade control system via RS485 SGRS Unit performance optimizer SODP LWZ Hydraulic kit with one pump with tank - user circuit A1ZZU Hydraulic kit with two pumps with tank - user circuit A2ZZU Hydraulic kit with one pump without tank - user circuit A1NTU Hydraulic kit with two pumps without tank - user circuit A2NTU Hydraulic kit with one pump without tank - recovery circuit A1NTR Hydraulic kit with two pumps without tank - recovery circuit A2NTR User and recovery heat exchanger antifreeze kit RAEV2/4 Rubber anti-vibration mountings KAVG Hydraulic circuit antifreeze kit KP Electronic Soft starter DSSE Remote control panel PCRL Serial interface card RS485 with MODBUS protocol INSE Electronic thermostatic valve VTEE Standard, Optional, – Not available.

F5 F6 C C B B

A A

Frame XL Version Frame NN Version

Mod. Frame Fans A (mm) B (mm) C (mm) Kg Mod. Frame Fans A (mm) B (mm) C (mm) Kg 1504/XL F5 4 1820 2900 2300 2480 1504/NN F5 4 1820 2900 2300 2480 1704/XL F5 4 1820 2900 2300 2530 1704/NN F6 6 1820 3900 2300 2690 2004/XL F6 6 1820 3900 2300 2720 2004/NN F6 6 1820 3900 2300 2720 2404/XL F6 6 1820 3900 2300 2760 2404/NN ------

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