Water Heat Exchanger for chilled and hot water production
Introducing a highly-efficient Water Heat Exchanger for PACi NX Series.
This ground-breaking product provides further possibilities by adding hydronic options.
See product >
![](https://cdn.aircon.panasonic.eu/uploads/__/clima_happenings/2024/PACi%20NX%20WHE/WH_PANASONIC_WATER_HEAT_EXCHANGER_PACi_02_24.jpg)
1
Cost Saving Solution.
· Cost effective water projects thanks to lower cost for PACi compared to VRF
2
Flexible and space saving system.
· Compact, lightweight unit design, only 27kg
3
Easy Installation, Maintenance.
· Flow switch kit is included as a standard
· Direct access to electrical box
Water outlet temperature
Cooling: 5 ~ 15°C
Heating: 30 ~ 55°C
![](https://cdn.aircon.panasonic.eu/uploads/__/clima_happenings/2020/WH/WH%20WHE%20PACi/WH_PANASONIC_WATER_HEAT_EXCHANGER_PACi_04.jpg)
![](https://cdn.aircon.panasonic.eu/uploads/__/clima_happenings/2024/PACi%20NX%20WHE/WH_PANASONIC_WATER_HEAT_EXCHANGER_PACi_03_24.jpg)
Highly-efficient Water Heat Exchanger for PACi NX Series
System example.a. Refrigerant piping.
b. External pump.
c. Buffer tank*.
d. Water piping.
e. Fan coil unit.
f. Underfloor.
* Minimum buffer tank volume: 10L/kW.
** Diagram is for illustrative purpose only.
Flexible and space saving system
![](https://cdn.aircon.panasonic.eu/uploads/__/clima_happenings/2024/PACi%20NX%20WHE/WH_PANASONIC_WATER_HEAT_EXCHANGER_PACi_05_24.jpg)
· Only 205mm depth fits within a limited space
· Lightweight design at only 27kg, makes it easy to maneuver and position
· Maximum total refrigerant piping length: 90m*
* 90m for PAW-200W5APAC-1.
· Wall-mounted and floor-standing installation options are available. Free-up floor space by using the wall-mounted installation
· Quick mounting process with its lightweight compact design
Make fixing holes > Fix 2 screws > Hang the unit > Finish
* Support feet included.
![](https://cdn.aircon.panasonic.eu/uploads/__/clima_happenings/2024/PACi%20NX%20WHE/WH_PANASONIC_WATER_HEAT_EXCHANGER_PACi_06_24.jpg)
PACi NX Water Heat Exchanger (WHE) is the ideal solution for residential and commercial applications; the investment costs can be amortised in a short period.
Quick installation with pre-assembled flow switch.
The flow switches come pre-assembled with pipe fittings for ease of installation.
Operation down to -20°C with no glycol as the heat exchanger is installed indoors.
Easy maintenance operation from two points of access
![](https://cdn.aircon.panasonic.eu/uploads/__/clima_happenings/2024/PACi%20NX%20WHE/WH_PANASONIC_WATER_HEAT_EXCHANGER_PACi_07_24.jpg)
b. Electrical Box.
c. Integrated Control display.
e. Plate heat exchanger with optimized distributor for R32 refrigerant.
f. Antifreeze Sensor.
g. Completely removable metallic case: full access for maintenance.
Built-in cascade control for 2 units.
The control of 2 refrigerant systems can be combined together in a cascade. This option is included in the standard scope of delivery on the WHE. It is activated using the one of the CZ-RTC5B remote controllers on the units as master. Rotation and Back-up operation modes can be selected.
![](https://cdn.aircon.panasonic.eu/uploads/__/clima_happenings/2024/PACi%20NX%20WHE/WH_PANASONIC_WATER_HEAT_EXCHANGER_PACi_11_24.jpg)
* One of built-in controllers should be deactivated.
Cascade systems with up to 4 groups of 8 units, reaching up to 800kW.
Optional PAW-PACR4 cascade controller allows up to three groups, with each group containing between 1-8 units, to be combined into a cascade for failure substitution or temperature assist.· Maximum 4 groups (up to 8 units per group)
· Rotation
· Failure substitution
· Temperature assist
· Operation output signal
· Alarm output signal
![](https://cdn.aircon.panasonic.eu/uploads/__/clima_happenings/2024/PACi%20NX%20WHE/WH_PANASONIC_WATER_HEAT_EXCHANGER_PACi_12_24v2.jpg)
![](https://cdn.aircon.panasonic.eu/uploads/__/clima_happenings/2022/03%20BIGRAC/WH%20PACi%20WHE/WH_PANASONIC_WATER_HEAT_EXCHANGER_PACi_09.jpg)
Foodchain/Small office application.
· Hydraulic system to reduce total amount of HFC refrigeration
· Water solution to substitute electric heating system
![](https://cdn.aircon.panasonic.eu/uploads/__/clima_happenings/2022/03%20BIGRAC/WH%20PACi%20WHE/WH_PANASONIC_WATER_HEAT_EXCHANGER_PACi_10.jpg)
Residential/Commercial retail application.
· For heating projects with longer than 50m piping