THT/IMP jet smoke extraction fans F400/F300 for car parks, unidirectional and reversible
Country: · Model: THT/IMP
The THT/IMP jet fan creates a directed airflow under the ceiling of a car park without ducts and drives smoke towards the extraction shafts. The unit is approved to EN 12101-3 in classes F400 and F300 (certificate 2797 CPR 840443), with an impeller diameter of 310–500 mm and sizes 31, 35, 38, 40, 45 and 50.
- Type
- jet (impulse) axial fan with silencers, unidirectional (UNI) or reversible (REV)
- Fire resistance
- F400 and F300 to EN 12101-3, certificate 2797 CPR 840443
- Impeller diameter
- 310…500 mm (sizes 31…50 per datasheet)
- Motor
- class H, duties S1/S2, IP55, 2 speeds (Dahlander), 3~ 400 V 50 Hz
Technical specifications
| Type | jet (impulse) axial fan with silencers, unidirectional (UNI) or reversible (REV) |
|---|---|
| Fire resistance | F400 and F300 to EN 12101-3, certificate 2797 CPR 840443 |
| Impeller diameter | 310…500 mm (sizes 31…50 per datasheet) |
| Motor | class H, duties S1/S2, IP55, 2 speeds (Dahlander), 3~ 400 V 50 Hz |
| Power by model code | 1.5…6 hp (≈1.1…4.4 kW) |
| Rotational speed (example, size 31) | 2780/1380 rpm |
| S1 temperature | −25…+40 °C (up to +50 °C) |
| Casing | THT/IMP-C — round, painted; THT/IMP-L — galvanized octagonal; THT/IMP-O — painted octagonal; THT/IMP-LS — shortened |
| Delivery set | silencers with thermal and acoustic insulation, deflectors, supports, protective guard to UNE-EN ISO 12499, IAT service switch |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The fan is intended for longitudinal ventilation and smoke extraction of covered and underground car parks and is not connected to ducts. The unit includes the fan, silencers, deflectors and supports, and the cast aluminum impeller has adjustable blade pitch. Unidirectional UNI models have a protective guard to UNE-EN ISO 12499 and a deflector at the outlet, while reversible REV models have deflectors on both sides and identical performance in both directions. The class H motor is rated for continuous duty S1 and emergency duty S2, has ball bearings, IP55 protection and two speeds in a Dahlander connection, with a three-phase 400 V 50 Hz supply. For size 31 the rotational speed is 2780/1380 rpm. In normal operation the air may be at −25…+40 °C, and in hot climates up to +50 °C. The coating is polyester resin polymerized at 190 °C, or galvanizing.
How to choose
The size is chosen according to the required thrust and the length of the car park, since sizes 31–50 have an impeller of 310–500 mm and the motor power by code ranges from 1.5 to 6 hp. The THT/IMP-C casing is round and painted, L is octagonal galvanized, O is octagonal painted, and LS is shortened galvanized. The IAT series service switch is built into versions L and O, and for version C it is supplied on request. A thrust different from the catalog value is made to order. Placement is calculated in the QuickFan program, and the manufacturer performs CFD modeling.
Request a price and lead time
THT/IMP jet smoke extraction fans F400/F300 for car parks, unidirectional and reversible. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How do the UNI and REV models differ?
UNI delivers the jet in one direction, with the deflector at the outlet. REV has deflectors on both sides and identical performance in both directions.
What fire resistance class does the THT/IMP have?
F400 and F300 to EN 12101-3, certificate 2797 CPR 840443. This approval applies to the unit together with the silencers, deflectors and supports.
What is the power supply and the motor duty?
Three-phase 400 V 50 Hz, a class H motor with two speeds in a Dahlander connection, IP55 protection. The duties are continuous S1 and emergency S2.
What air temperature is permitted for the THT/IMP?
In normal operation from −25 to +40 °C, and in hot climates up to +50 °C.
What is the motor power in this series?
By model code from 1.5 to 6 hp, which is approximately 1.1–4.4 kW.
REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.