LPHW Unit Heater S-3S
The S-3S LPHW unit heater has been designed for customers looking for traditional solutions. The S-3S unit heater features a powder-coated galvanised steel housing and manually adjustable air guides, also made of galvanised steel. The unit is ideal for commercial, production and warehouse facilities.
About the product
S-3S is an LPHW unit heater in a traditional design, created for customers looking for proven, robust solutions. Unlike EPP-housed models, the S-3S is equipped with a heavier and more durable powder-coated galvanised steel housing (RAL 9005), which performs excellently in demanding industrial environments.
The unit is used in commercial, production and warehouse facilities. Heating capacity from 1.57 to 66.2 kW and airflow from 700 to 3,350 m³/h allow the unit heater to be matched to facility requirements, while the three-stage AC induction motor with IP54 protection rating enables adjustment of operating intensity.
The unit is equipped with a copper-aluminium heat exchanger, available in 1-, 2- or 3-row versions, operating with a medium temperature up to 120°C. Manually adjustable galvanised steel air louvres (RAL 7048) ensure even distribution of warm air, while wall or ceiling mounting is facilitated by the S rotating bracket or mounting brackets.
Key features
- Heating capacity from 1.57 kW to 66.2 kW
- Airflow: from 700 m³/h to 3,350 m³/h
- 3-stage fan speed control
- AC induction motor with IP54 protection rating
- Powder-coated galvanised steel housing (RAL 9005)
- Adjustable galvanised steel air louvres (RAL 7048)
- Made in Poland
Technical specification
| Parameter | S1-3S | S2-3S | S3-3S | S4-3S |
|---|---|---|---|---|
| Product code | WHS1-3S-1789 | WHS2-3S-1790 | WHS3-3S-1791 | WHS4-3S-1787 |
|
Unit output [kW*] 3rd stage / 2nd stage / 1st stage |
14,7 / 13,1 / 11,3 | 23,4 / 16,0 / 14,0 | 36,9 / 20,8 / 17,8 | 50,1 / 38,5 / 27,5 |
| Heating capacity range [kW**] | 1,57 – 19,5 | 2,1 – 30,8 | 2,92 – 48,8 | 4,17 – 66,2 |
|
Max. airflow [m³/h] 3rd stage / 2nd stage / 1st stage |
1400 / 1150 / 900 | 2000 / 1100 / 900 | 1800 / 850 / 700 | 3350 / 2250 / 1400 |
| Max. air reach [m] | 10 | 13 | 11 | 18 |
| Number of heat exchanger rows [pcs] | 1 | 2 | 3 | 2 |
| Water capacity [dm³] | 0,5 | 1,3 | 1,9 | 2,0 |
| Maks. temperatura czynnika grzewczego [°C] | 120 | 120 | 120 | 120 |
| Max. working pressure [MPa] | 1,6 | 1,6 | 1,6 | 1,6 |
| Connection diameter [in] | ¾ | ¾ | ¾ | ¾ |
| Voltage / frequency [V/Hz] | 230 / 50 | 230 / 50 | 230 / 50 | 230 / 50 |
|
Rated current [A] 3rd stage / 2nd stage / 1st stage |
0,38 / 0,20 / 0,15 | 0,58 / 0,34 / 0,30 | 0,58 / 0,34 / 0,30 | 0,82 / 0,62 / 0,41 |
|
Obroty silnika [obr/min.] 3rd stage / 2nd stage / 1st stage |
1350 / 1130 / 870 | 1400 / 1100 / 850 | 1400 / 1100 / 850 | 1380 / 1030 / 650 |
|
Motor power [W] 3rd stage / 2nd stage / 1st stage |
75 / 45 / 35 | 124 / 85 / 75 | 124 / 85 / 75 | 185 / 140 / 90 |
| IP protection rating | 54 | 54 | 54 | 54 |
| Waga netto [kg] | 12,5 | 19 | 20 | 25 |
|
Noise level [dB***] 3rd stage / 2nd stage / 1st stage |
51 / 45 / 43 | 54 / 48 / 46 | 53 / 47 / 45 | 56 / 50 / 48 |
* przy parametrach wody 90/70°C oraz temperaturze wlotowej powietrza 0°C
** moc maksymalna 120/90°C, 0°C na wlocie, 3 bieg // moc minimalna 40/30°C, 20°C na wlocie, 1 bieg
*** measured at 5 m distance
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