FUMARO
D+H Chain Drive KA 66-TW
Twin chain drive with equal load distribution on the sash
The KA 66-TW delivers doubled tensile and compressive force with equal load distribution on the window sashes. It combines two KA 34 drives in a single housing.
This configuration simplifies installation and helps reduce maintenance and service costs while providing reliable performance for smoke ventilation and daily ventilation systems.
Features
- Can be used for smoke exhaust openings in accordance with EN 12101-2 and for daily ventilation.
- BSY+ motor with synchronised electronics controlled via microprocessor.
- High-speed function for especially fast opening in case of fire.
- Two drive chains for optimal force distribution to the sash.
- Special chain stabilisation.
- Relief of pressure on the window gasket after closing.
- Electronic force and position control.
- Programmable drive functions and variable drive parameters.
- Reduced speed in CLOSED direction to 5 mm/s for passive closing edge protection.
- Time-controlled reversing when an obstacle is detected in CLOSED direction for active closing edge protection.
Technical Overview
| Parameter | Value |
|---|---|
| Type | Twin chain drive |
| Model | KA 66-TW |
| Drive concept | Two KA 34 drives in one housing |
| Force application | Equal load distribution on the window sashes |
| Application | SHEV and daily ventilation |
| Control | BSY+ synchronised microprocessor-controlled electronics |
| Opening behavior | High-speed opening in case of fire |
| Protection | Passive and active closing edge protection |
| System benefit | Simplified installation with lower maintenance and service costs |