Models
ECOi-W Heat Pump Chiller
Cooling capacity: 19,4 to 37,4kW.
Heating capacity: 19,5 to 41,6kW.
Compact and powerful heat pump chiller series with Panasonic quality verification. ECOi-W Series guarantees quiet operation.
· Eurovent certified
· Ambient temperature operating range: -10 to +50°C in cooling, -17 to +20°C in heating
· Water outlet temperature range: -10 to +18°C in cooling, +20 to +50°C in heating
· Super quiet operation
· Optimized design for service and maintenance
· Simple user friendly control as standard
· Modbus RTU as standard
Technical focus.
· Chiller type: heat pump
· Compressor type (number of compressors): Scroll compressors (2)
· Refrigerant type: R410A
· Refrigerant circuit: 1
· Fan type (number of fans): axial fan (1)
· Heat exchanger: stainless steel plate heat exchanger
· Flow switch, water safety & air purge valves included
· Water filter included (mandatory to be installed on site)
· Night mode setting to save energy and reduce noise level
· Water compensation curve control
· Bluefin anti-corrosion coating
· Optional hydraulic kit
· Optional Desuperheater for free hot water up to 50°C*
· Optional finned coil treatment
· Optional Modbus TCP/IP, BACnet IP and BACnet MSTP
· Optional remote LAN connection
* Available on special order only, please contact your local Panasonic sales representative.
The reasons to choose Panasonic as your partner



Unrivaled reliability and quality
Panasonic does not compromise on product quality, always strives for 100% quality.
Panasonic solutions can be enjoyed for years to come, even in the most extreme climates.
· Quality certified by Panasonic
· Eurovent certified performance
· ECOi-W Series are compliant with ErP regulation
Panasonic solutions can be enjoyed for years to come, even in the most extreme climates
These new series provides a wide variety of HVAC system solutions, to meet all of your residential, commercial and industrial needs.
ECOi-W series offers smart technology
· High seasonal efficiency in cooling and heating mode
· Super quiet
· Ultimate customisation
· Automatic fan operation
· Down to -17 °C in heating mode
· Up to 50 °C in cooling mode
· Defrost limiting cycle (140 – 210)
· Bluefin coil comes as standard
· BMS connectivity
Unrivaled reliability and quality
Panasonic does not compromise on product quality, always strives for 100% quality.
Panasonic solutions can be enjoyed for years to come, even in the most extreme climates.
· Quality certified by Panasonic
· Eurovent certified performance
· ECOi-W Series are compliant with ErP regulation
Panasonic solutions can be enjoyed for years to come, even in the most extreme climates
These new series provides a wide variety of HVAC system solutions, to meet all of your residential, commercial and industrial needs.
ECOi-W series offers smart technology
· High seasonal efficiency in cooling and heating mode
· Super quiet
· Ultimate customisation
· Automatic fan operation
· Down to -17 °C in heating mode
· Up to 50 °C in cooling mode
· Defrost limiting cycle (140 – 210)
· Bluefin coil comes as standard
· BMS connectivity
Explore the new range of fan coils
Specifications
U - 020/025/030/035/040 CW | THREE PHASE | ||||||
---|---|---|---|---|---|---|---|
18.7 kW | 23.7 kW | 26.4 kW | 35.8 kW | 38.1 kW | |||
Model standard without buffer tank | U-020CWNB | U-025CWNB | U-030CWNB | U-035CWNB | U-040CWNB | ||
Model with buffer tank | U-020CWBS | U-025CWBS | U-030CWBS | U-035CWBS | U-040CWBS | ||
Power supply (Voltage) | V | 400 | 400 | 400 | 400 | 400 | |
Power supply (Phase) | Three phase | Three phase | Three phase | Three phase | Three phase | ||
Power supply (Frequency) | Hz | 50 | 50 | 50 | 50 | 50 | |
Cooling capacity (1) | kW | 18,7 | 23,7 | 26,4 | 35,8 | 38,1 | |
Input power cooling (1) | kW | 5,9 | 7,7 | 9,4 | 12,3 | 13,1 | |
Total EER 100% (1) | 3,15 | 3,07 | 2,81 | 2,92 | 2,91 | ||
SEER (2) (3) | 4,68 | 4,31 | 4,28 | 4,25 | 4,33 | ||
ηs,c (2) (3) | % | 184 | 169 | 168 | 167 | 170 | |
Heating capacity (4) | kW | 19,5 | 26,9 | 29,7 | 37,3 | 41,6 | |
Input power heating (4) | kW | 6,1 | 9,3 | 9,9 | 13,2 | 13,5 | |
SCOP (3) (5) | 3,50 | 3,38 | 3,45 | 3,50 | 3,50 | ||
ηs,h (3) (5) | % | 137 | 132 | 135 | 137 | 137 | |
Energy efficiency class (Scale A+++ to D) (6) | A+ | A+ | A+ | A+ | A+ | ||
Startup type | Direct | Direct | Direct | Direct | Direct | ||
Maximum operating current | A | 17,7 | 22,2 | 24,3 | 31,8 | 33,8 | |
Startup current without softstarter | A | 53 | 64 | 77 | 118 | 119 | |
Startup current with softstarter | A | 20 | 35 | 41 | 53 | 54 | |
Sound power (with standard fans) | dB(A) | 75,0 | 75,0 | 75,0 | 76,0 | 76,0 | |
Sound pressure (with standard fans) (7) | dB(A) | 42,8 | 42,8 | 42,8 | 43,8 | 43,8 | |
Dimension (with standard fans) without buffer tank (Height) | mm | 1.983 | 1.983 | 1.983 | 1.983 | 1.983 | |
Dimension (with standard fans) without buffer tank (Width) | mm | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | |
Dimension (with standard fans) without buffer tank (Depth) | mm | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | |
Dimension (with standard fans) with buffer tank (Height) | mm | 1.983 | 1.983 | 1.983 | 1.983 | 1.983 | |
Dimension (with standard fans) with buffer tank (Width) | mm | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | |
Dimension (with standard fans) with buffer tank (Depth) | mm | 1.507 | 1.507 | 1.507 | 1.507 | 1.507 | |
Weight (with 1 pump) without buffer tank | kg | 280 | 290 | 320 | 330 | 335 | |
Weight (with 1 pump) with buffer tank | kg | 345 | 355 | 385 | 395 | 400 | |
Refrigerant (R410A) | kg | 8,4 | 8,4 | 8,4 | 9,1 | 9,2 | |
Number of refrigerant circuit | 1 | 1 | 1 | 1 | 1 | ||
Compressors | . | . | . | . | . | ||
Number of compressors | 2 | 2 | 2 | 2 | 2 | ||
Type of compressors | Scroll | Scroll | Scroll | Scroll | Scroll | ||
Part load step | % | 0 / 50 / 100 | 0 / 50 / 100 | 0 / 50 / 100 | 0 / 50 / 100 | 0 / 50 / 100 | |
Crankcase heater | W | 2 x 40 | 2 x 40 | 2 x 49 | 2 x 49 | 2 x 49 | |
Evaporator | . | . | . | . | . | ||
Number of evaporators | 1 | 1 | 1 | 1 | 1 | ||
Type of evaporators | Plate | Plate | Plate | Plate | Plate | ||
Nominal water flow (cooling) | m³/h | 3,35 | 4,36 | 4,64 | 6,16 | 6,44 | |
Water pressure drop (cooling) | kPa | 23 | 37 | 22 | 37 | 40 | |
Water volume | L | 1,78 | 1,78 | 2,55 | 2,55 | 2,55 | |
Antifreeze heater | W | 30 | 30 | 30 | 30 | 30 | |
Coils | . | . | . | . | . | ||
Number of coils | 1 | 1 | 1 | 1 | 1 | ||
Frontal surface | m² | 2,4 | 2,4 | 2,4 | 2,8 | 2,8 | |
Number of rows | 2 | 2 | 2 | 2 | 2 | ||
Fans standard | . | . | . | . | . | ||
Number of fans standard | 1 | 1 | 1 | 1 | 1 | ||
Air flow of fans standard | m³/h | 9.000 | 13.000 | 13.000 | 16.000 | 16.000 | |
Rotation speed | r.p.m. | 900 | 900 | 900 | 650 | 650 | |
Power input (each fan) | W | 620 | 940 | 940 | 930 | 930 | |
Chiller water connections | . | . | . | . | . | ||
Type of water connections | Male gas threaded BSPP ISO 228 | Male gas threaded BSPP ISO 228 | Male gas threaded BSPP ISO 228 | Male gas threaded BSPP ISO 228 | Male gas threaded BSPP ISO 228 | ||
Inlet - diameter | Inch | 1 ½ | 1 ½ | 1 ½ | 1 ½ | 1 ½ | |
Outlet - diameter | Inch | 1 ½ | 1 ½ | 1 ½ | 1 ½ | 1 ½ |
1) Data refers to 7°C leaving chilled water temperature and 35°C condenser air temperature, according EN14511 standard.
2) Following COMMISSION REGULATION (EU) No 2016/2281 for comfort application chillers.
3) Those are the data with variable flow. For the data with fixed flow, please contact an authorised Panasonic dealer.
4) Data refers to 45°C leaving warm water temperature and 7°C ambient coil air temperature with 87 % R.H., according EN14511 standard.
5) Following COMMISSION REGULATION (EU) No 813/2013 for low-temperature heat pumps.
6) Following Eurovent and COMMISSION REGULATION (EU) No 811/2013 for low-temperature heat pumps. Scale from A+++ to D, as of 26th September 2019.
7) Sound pressure levels calculated at 10 meters. Sound pressure levels refer to ISO standard 3744 with parallel piped shape.