POLISH PRODUCT LPHW unit heater HC-3S
The HC-3S LPHW unit heater is designed for use in industrial and commercial facilities such as production halls, warehouses, workshops, retail spaces and garages. The unit heater requires connection to a water installation with a heating medium, which transfers heat through the heat exchanger into the room. It can also be supplied with cold water to circulate cool air in the facility. The unit is fully compatible with heat pumps, ensuring efficient heating and cooling.
About the product
HC-3S is an LPHW unit heater designed for heating and cooling industrial and commercial facilities — production halls, warehouses, workshops, retail spaces and garages. It requires connection to a water installation with a heating medium, but it can also be supplied with cold water to circulate cool air, making it fully compatible with heat pumps in both operating modes.
The copper-aluminium heat exchanger, available in 1-, 2- or 3-row versions, ensures efficient heat transfer and can operate with a medium temperature of up to 120°C. A heating capacity range from 1,5 to 92,7 kW and an airflow from 850 to 5000 m³/h allow the unit to be matched to facilities of different volumes.
The expanded polypropylene (EPP) housing is lightweight, resistant to mechanical damage and provides excellent thermal and acoustic insulation, which simplifies installation and guarantees durability. A 3-stage AC induction motor with an IP54 rating (optionally an energy-efficient EC motor with smooth 0–100% speed control) and adjustable ABS air louvres allow the unit’s operation and airflow direction to be precisely matched to the facility’s needs.
Key features
- Heating capacity: from 1,5 kW to 92,7 kW
- Cooling capacity: from 2,6 kW to 35 kW
- Airflow: from 850 m³/h to 5,000 m³/h
- 3-stage fan speed control
- AC induction motor with IP54 rating
- EPP plastic housing
- Adjustable ABS air louvres (optional: 360° diffuser or confusor)
- Manufactured in Poland
Why choose the HC-3S unit heater?
Compatible with heat pumps
LPHW unit heaters can be matched to installations with heat pumps and other low-temperature heat sources. The final capacity depends on water parameters, the temperature in the facility and the required airflow, so individual technical selection is recommended for such installations.
Lightweight and durable EPP housing
LPHW unit heaters can be matched to installations with heat pumps and other low-temperature heat sources. The final capacity depends on water parameters, the temperature in the facility and the required airflow, so individual technical selection is recommended for such installations.
Copper-aluminium heat exchanger
The copper-aluminium heat exchanger provides high heat transfer efficiency in a compact size. Available in 1-, 2- or 3-row versions — choosing the right configuration allows the heating capacity to be matched to the requirements of a specific facility.
Cooling mode and water vapour condensation
In cooling mode (supplied with chilled water), water vapour condenses on the surface of the heat exchanger — the HC drip tray must be used. The dedicated accessory is available separately, and the entire installation should provide for condensate drainage in accordance with the unit’s technical documentation.
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Models and parameters
| Parameter | HC15-3S | HC20-3S | HC30-3S | HC35-3S | HC45-3S | HC50-3S | HC70-3S | HC80-3S |
|---|---|---|---|---|---|---|---|---|
| Product code | WHHC15-3S-2402 | WHHC20-3S-1759 | WHHC30-3S-1760 | WHHC35-3S-1761 | WHHC45-3S-1762 | WHHC50-3S-2006 | WHHC70-3S-1764 | WHHC80-3S-1956 |
|
Unit output [kW*] 3rd stage / 2nd stage / 1st stage |
17.2 / 13.4 / 12.1 | 21.4 / 17.3 / 13.3 | 26.4 / 20.3 / 15.5 | 30.3 / 22.9 / 17.3 | 42.0 / 28.9 / 21.1 | 49.8 / 45.2 / 34.6 | 60.6 / 40.1 / 32.7 | 69.2 / 61.5 / 46.5 |
| Heating capacity range [kW**] | 1.9 – 22.2 | 1.5 – 29.7 | 1.7 – 34.7 | 2.0 – 41.7 | 3.2 – 56.1 | 5.0 – 65.6 | 5.0 – 79.7 | 6.8 – 92.7 |
|
Max. airflow [m³/h] 3rd stage / 2nd stage / 1st stage |
1500 / 1000 / 850 | 3200 / 2150 / 1350 | 3100 / 1950 / 1250 | 2700 / 1700 / 1100 | 2500 / 1450 / 950 | 5000 / 4200 / 2600 | 3400 / 1900 / 1450 | 4200 / 3500 / 2300 |
| Max. air throw [m] | 10 | 19 | 18 | 15 | 14 | 24 | 18 | 21 |
| Number of heat exchanger rows [pcs] | 2 | 1 | 1 | 2 | 2 | 2 | 3 | 3 |
| Water capacity [dm³] | 0.45 | 0.65 | 0.8 | 1.35 | 1.7 | 1.95 | 2.85 | 2.85 |
| Max. heating medium temperature [°C] | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 |
| Max. working pressure [MPa] | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 |
| Connection diameter [in] | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 |
| Voltage / frequency [V/Hz] | 230/50 | 230/50 | 230/50 | 230/50 | 230/50 | 230/50 | 230/50 | 230/50 |
|
Rated current [A] 3rd stage / 2nd stage / 1st stage |
0.36 / 0.22 / 0.21 | 0.82 / 0.62 / 0.41 | 0.82 / 0.62 / 0.41 | 0.82 / 0.62 / 0.41 | 0.82 / 0.62 / 0.41 | 2.05 / 1.65 / 1.4 | 1.08 / 0.86 / 0.7 | 2.05 / 1.65 / 1.4 |
|
Motor speed [rpm] 3rd stage / 2nd stage / 1st stage |
1400 / 1200 / 1000 | 1380 / 1030 / 650 | 1380 / 1030 / 650 | 1380 / 1030 / 650 | 1380 / 1030 / 650 | 1380 / 1200 / 900 | 1360 / 1050 / 750 | 1350 / 1200 / 900 |
|
Motor power [W] 3rd stage / 2nd stage / 1st stage |
80 / 48 / 45 | 185 / 140 / 90 | 185 / 140 / 90 | 185 / 140 / 90 | 185 / 140 / 90 | 455 / 350 / 280 | 240 / 190 / 160 | 455 / 350 / 280 |
| IP rating | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 54 |
| Net weight [kg] | 10 | 12.5 | 12.5 | 14 | 14 | 20.5 | 20 | 22.5 |
|
Noise level [dB***] 3rd stage / 2nd stage / 1st stage |
53 / 47 / 45 | 57 / 55 / 49 | 57 / 55 / 49 | 56 / 54 / 48 | 56 / 54 / 48 | 66 / 60 / 54 | 58 / 53 / 49 | 65 / 59 / 53 |
* at water parameters of 90/70°C and an inlet air temperature of 0°C
** maximum capacity 120/90°C, 0°C at inlet, 3rd stage // minimum capacity 40/30°C, 20°C at inlet, 1st stage
*** measured at a distance of 5m
Files to download
Technical documentation
EU declarations of conformity
BIM files
FAQ
Model selection depends primarily on the volume of the facility, the required heating capacity and the parameters of the water installation. Use our online calculator or contact a technical advisor who will help you select the optimal model based on your facility's parameters.
Yes, the HC-3S unit heater can work with a heat pump. However, keep in mind that the heating capacity depends on the water temperature supplied by the heat pump. At lower water temperatures (e.g. 45/35°C), the capacity will be lower than at standard parameters (80/60°C). We recommend individual technical selection for such installations.
The HC-3S unit heater can operate at various water temperatures. Catalogue capacity parameters are given for 80/60°C. At lower temperatures, the heating capacity decreases. In cooling mode (chilled water), the unit requires a drip tray to drain condensate.
The HC3S controller with thermostat is dedicated to the 230 V HC-3S unit heater. It enables 3-stage control and automatic maintenance of the set temperature. For more advanced installations, the HMI CURTAIN BMS controller is available, enabling integration with building automation.
Yes. The HC-3S unit heater can be installed both horizontally (ceiling-mounted) and vertically (wall-mounted). Various airflow configurations are available: downward, angled or horizontal. The dedicated HC rotating mounting bracket is used for wall mounting, allowing the unit to be rotated horizontally.
The HC-3S unit heater carries a 24-month manufacturer's warranty. Maintaining the warranty requires correct installation in accordance with the user manual and use of the unit as intended.
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Heating capacity calculation for your facility's volume
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Selection of the optimal unit heater model and series
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Confirmation of availability and delivery time
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Direct contact with a sales advisor