POLISH PRODUCT LPHW unit heater HC-EC
The HC-EC LPHW unit heater is designed for heating and cooling air in industrial and commercial facilities, such as production halls, warehouses, workshops or service rooms. It requires connection to a water installation with a heating medium, which transfers heat through the heat exchanger into the heated room. It can also be supplied with chilled water to circulate and cool the air in the facility. The unit combines high performance with energy-efficient EC motor technology. The unit is fully compatible with heat pumps, ensuring efficient heating and cooling.
About the product
HC-EC is an energy-efficient LPHW unit heater with an EC motor, designed for heating and cooling industrial and commercial facilities — production halls, warehouses, workshops and service rooms. It requires connection to a water installation with a heating medium, but it can also be supplied with chilled water to circulate and cool the air, making it fully compatible with heat pumps in both operating modes.
The energy-efficient EC motor with an IP54 rating and smooth speed control in the range of 0–100% ensures better control of fan operation and lower energy consumption than traditional motors. Airflow up to 4800 m³/h and heating capacity from 2,6 to 87,2 kW allow the unit to be matched to the needs of the facility.
The copper-aluminium heat exchanger, available in 1-, 2- or 3-row versions, operates with a medium temperature of up to 120°C. The expanded polypropylene (EPP) housing is lightweight, resistant to mechanical damage and provides excellent thermal and acoustic insulation, while adjustable ABS air louvres — optionally with a 360° diffuser or confusor — allow the airflow direction to be precisely set.
Key features
- Heating capacity: from 2,6 kW to 87,2 kW
- Cooling capacity: from 1.9 kW to 20.1 kW
- Airflow: up to 4800 m³/h
- Energy-efficient EC motor with smooth speed control (0–100%)
- Motor with IP54 rating
- EPP plastic housing
- Adjustable ABS air louvres (optional: 360° diffuser or confusor)
- Manufactured in Poland
Why choose the HC-EC unit heater?
Energy-efficient EC motor with smooth 0–100% speed control
The HC-EC LPHW unit heater is equipped with an energy-efficient EC motor with an IP54 rating, enabling smooth fan speed control in the range from 0% to 100%. This means better control of fan speed and lower energy consumption compared to traditional motors.
With airflow up to 4,800 m³/h (depending on model), HC-EC is an excellent choice for spaces where better fan speed control and lower energy consumption are key priorities.
Lightweight and durable EPP housing
The HC-EC LPHW unit heater has a housing made of expanded polypropylene, a lightweight material resistant to mechanical damage and providing excellent thermal and acoustic insulation. This housing guarantees durability in demanding industrial environments and simplifies installation thanks to its low weight.
Copper-aluminium heat exchanger
The copper-aluminium heat exchanger ensures efficient heat transfer in heating mode. It also allows operation in cooling mode when combined with chilled water. Depending on the model, versions with a 1-, 2- or 3-row heat exchanger are available. The heat exchanger is designed to work with a heating medium at a maximum temperature of up to 120°C.
Cooling mode and water vapour condensation
During operation in cooling mode, water vapour may condense on the surface of the unit. For effective condensate drainage, the use of a dedicated drip tray is recommended.
The tray is compatible with wall mounting and should be connected to the drainage system to safely remove the collected water.
Flexible air distribution with adjustable louvres
Every HC-EC unit heater is equipped with adjustable ABS air louvres, which allow the airflow direction to be precisely set. If uniform air distribution or increased airflow reach is required, the unit can optionally be equipped with a 360° diffuser or confusor.
Dedicated HC rotating mounting bracket
The HC rotating mounting bracket is a practical mounting element dedicated to LPHW unit heaters from the HC series. It allows the unit to be easily rotated horizontally, making it possible to precisely adjust the airflow direction to the current needs of users and the layout of the room.
The bracket also simplifies installation and servicing of the unit heater.
Have more questions?
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Models and parameters
| HC 15-EC | HC 20-EC | HC 30-EC | HC 35-EC | HC 45-EC | HC 50-EC | HC 70-EC | |
|---|---|---|---|---|---|---|---|
| Product code | WHHC15-EC-2424 | WHHC20-EC-1985 | WHHC30-EC-1986 | WHHC35-EC-1987 | WHHC45-EC-1988 | WHHC50-EC-1989 | WHHC70-ECS-1990 |
| Unit output [kW*] | 20.4 | 25.4 | 31.3 | 37.1 | 50.5 | 48.6 | 67.2 |
| Heating capacity range [kW**] | 3.1 - 26.8 | 2.6 - 35.8 | 3.3 - 41.8 | 4.3 - 48.9 | 7.2 - 66.5 | 6.9 - 63.9 | 9.6 - 87.2 |
| Maximum airflow [m³/h] | 2000 | 4600 | 4300 | 4000 | 3400 | 4800 | 4000 |
| Maximum air throw [m] | 12 | 21 | 20.5 | 19.5 | 19 | 23 | 20 |
| Number of heat exchanger rows [pcs] | 2 | 1 | 1 | 2 | 2 | 2 | 3 |
| Water capacity [dm³] | 0.45 | 0.65 | 0.8 | 1.35 | 1.7 | 1.95 | 2.85 |
| Maximum heating medium temperature [°C] | 120 | 120 | 120 | 120 | 120 | 120 | 120 |
| Maximum working pressure of heating medium [MPa] | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 |
| Connector diameter [in] | 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 |
| Rated current [A] | 1.3 | 3.3 | 3.3 | 3.3 | 3.3 | 2.95 | 2.95 |
| Motor speed [rpm] | 2020 | 1705 | 1705 | 1705 | 1705 | 1400 | 1400 |
| Motor power [W] | 150 | 500 | 500 | 500 | 500 | 430 | 430 |
| IP rating | 54 | 54 | 54 | 54 | 54 | 54 | 54 |
| Net weight [kg] | 8.5 | 13 | 13 | 14.5 | 14.5 | 20 | 21 |
| Noise level [dB***] | 63 | 60 | 59 | 58 | 58 | 59 | 58 |
* – at water parameters of 90/70°C and an inlet air temperature of 0°C
** – minimum capacity 40/30°C, 20°C at inlet, 50% // maximum capacity 120/90°C, 0°C at inlet, 100% airflow
*** – measured at a distance of 5m
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Yes. It's enough for the heat exchanger to be supplied with chilled water. Cooling efficiency depends on the supply water temperature and the inlet air temperature. Due to the possibility of condensate forming, a drip tray must be used. Operation of the unit in cooling mode is only possible with wall mounting of the unit heater — with ceiling mounting, the condensate would not be caught by the tray.
Yes, it can. Depending on requirements, a confusor (to increase jet reach) or a 360° diffuser (to shorten the jet, but achieve better mixing with the surrounding air) can additionally be fitted to the outlet.
Yes, our unit heaters are compatible with heat pumps.
No. Unit heaters can be supplied with water or a glycol solution at the appropriate pressure. Water pressure that is too low may negatively affect the heating capacity of the unit heaters.
Check the connection to the electrical installation and make sure the unit heater is connected to the mains in accordance with the wiring diagrams provided.
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