Yutaki-S

Hitachi’s Yutaki-S heat pump is the ideal solution for both new build and renovation projects with exceptional performance for heating and domestic hot water.

Year-round comfort, with heat output available at ambient temperatures as low as -20°C.

Outdoor Unit ModelRAS 2WHVNPRAS 2.5 WHVNPRAS 3WHVNPRAS 4WH(V)NPRAS 5WH(V)NPRAS 6WH(V)NPRAS 8WHVNPRAS 10WHVNP
RefrigerantR410A
Minimum Piping Lengthm5.0
Maximum Chargeless Piping Lengthm15.0
Piping Diameter (liquid/gas)Inch3/8 / 5/8"1/4" / 1/2"3/8" / 1 1/8" 1/2" / 1 1/8"
Maximum Piping Lengthm50.075.0
Additional Refrigerant Chargeg (per metre)30.040.060.0
Power Supply230V/1Ph/50Hz230V/1Ph/50Hz + 400V/3PH/50Hz400V/3Ph/50Hz
Circuit Breaker Size (Single/Three Phase)A2032/1624
Maximum Operating CurrentA13.815.817.830.5/1430.5/1624.0
Sound Power Level @ 7/35*dB(A)59.060.061.063.064.065.071.072.0
Dimensions (H x W x D)mm600 x 792 x 3001380 x 950 x 370
Gross WeightKg46.049.0116.0137.0139.0
Compressor TypemmScroll DC Inverter Driven
* Sound power level in accordance to the standard EN 12102 at conditions specified in EN 14511 performance test

Features and Benefits:
Domestic hot water as well as heating – ideal boiler replacement technology
Two heating circuits
Screed drying function ideal for new builds
Weather compensation control
Generate water up to 60°C
DHW legionella protection program
Capable of producing domestic hot water when combined with optional hot water tank
One of the best COP’s on the market up to 5.25
Eligible for domestic and non-domestic RHI
ErP energy efficiency class of up to A+++

Remote Controller PC-ARFHE (Includes; weekly timer, holiday mode, smart function and a favourite button)
Wireless Remote Thermostat ATW-RTU-05 (Control remotely via smartphone app)
Optional cooling accessory available
Optional domestic hot water tank and buffer tanks
Available from 4.3 to 24 kW, single and three phase models available

Advanced Technical Data

Indoor Unit ModelRWM 2.0NERWM 2.5NERWM 3.0NERWM 4.0NERWM 5.0NERWM 6.0NERWM 8.0NERWM 10.0NE
Outdoor Unit ModelRAS 2WHVNPRAS 2.5WHVNPRAS 3WHVNPRAS 4WH(V)NPRAS 5WH(V)NPRAS 6WH(V)NPRAS 8WH(V)NPRAS 10WH(V)NP
Nominal Capacity (max) Water 30/35°C, Ambient 7db/6wb°CKW4.30 (7.00)6.00 (9.00)7.50 (11.00)11.0 (15.20)14.0 (16.70)16.00 (17.80)20.00 (25.50)24.0 (32.00)
COP5.254.84.555.004.714.574.574.30
Nominal Capacity (max) Water 40/45°C, Ambient 7db/6wb°CKW4.30 (6.20)6.00 (9.00)7.50 (10.00)11.0 (14.10)14.0 (15.70)16.00 (17.30)20.00 (25.00)24.0 (32.00)
COP3.93.59£3.503.983.613.403.403.30
Nominal Capacity (max) Water 47/55°C, Ambient 7db/6wb°C KW4.30 (6.00)6.00 (8.00)7.50 (9.20)11.0 (13.5)14.0 (15.20)16.00 (17.00)20.00 (24.00)24.0 (32.00)
COP3.002.892.573.002.802.502.722.65
Nominal Capacity (max) Water 30/35°C, Ambient 2db/1wb°CKW3.50 (5.50)4.50 (7.00)5.50 (8.90)9.50 (12.80)10.50 (13.90)11.10 (15.00)12.30 (20.00)13.00 (20.70)
COP4.103.653.533.613.553.413.513.41
Nominal Capacity (max) Water 30/35°C, Ambient -7db/-8wb°CKW4.30 (4.70)5.30 (5.70)5.80 (6.70)9.70 (10.60)11.50 (12.00)12.00 (13.00)14.20 (17.90)16.50 (21.00)
COP2.853.652.572.742.652.572.572.57
Nominal Capacity (max) Water 40/45°C, Ambient -7db/-8wb°CKW4.30 (4.60)5.00 (5.50)6.00 (6.40)10.0 (10.00)11.00 (11.60)11.50 (12.50)15.00 (16.60)16.50 (18.50)
COP2.452.252.252.452.252.152.081.74
Nominal Capacity (max) Water 47/55°C, Ambient -7db/-8wb°CKW4.00 (4.20)4.60 (5.00)5.00 (5.50)8.70 (9.70)9.70 (11.20)10.50 (12.00)12.50 (14.50)15.50 (17.30
COP1.931.821.61.781.851.751.71.5
Water Flow Rate min/maxm3/hr0.5/1.90.6/2.00.6/2.11.0/2.91.1/3.01.2/3.02.0/4.52.2/4.6
Minimum Water Volume (defrost)L28.028.028.038.046.055.076.079.0
Water ConnectionsInch1" Female1 1/4" Female
Expansion Vessel SizeL6.010.0
Pump TypeYonos PARA RS 15/7.0Ronos PARA RS 15/7.5UPML GEO 25-105
Water Temperature Range°C20 - 5520 - 60
Piping Diameter (liquid/gas)Inch1/4" / 5/8"3/8" / 5/8"3/8" / 1.18"1/2" / 1 1/8"
Power Supply230V/1Ph/50Hz230V/1Ph/50Hz +
400V/3PH/50Hz
400V/3Ph/50HZ
Circiut Breaker Size (with DHW tank heater)A20.0
Maximum Operating Current (with DHW tank heater)A15.315.4
Sound Power LeveldB(A)37.039.047.0
Dimensions (H x W x D) Including Connectionsmm782 x 450 x 275960 x 520 x 360960 x 670 x 360
Gross WeightKg60.061.071.090.093.0
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