Overview
The D+H GVL 8304-K is a compact 24 V DC natural ventilation control panel for small window automation applications. It is suited to single-zone systems where multiple windows or louvres are operated by local wall switch and protected by an optional rain sensor.
EBSA can assist with actuator selection, control panel selection, wiring coordination and commissioning support to confirm that the system is suitable for the project requirements.
At-a-glance
| Application | Natural ventilation |
|---|---|
| Panel output | 24 V DC / 4 A total current |
| Ventilation groups | 1 |
| Fire zones / lines | Not applicable — GVL series panels are for natural ventilation only |
| Control inputs | Wall switch / rain sensor |
| Housing | Plastic |
| Dimensions (WxHxD) | 172 x 151 x 95 mm |
| Manufacturer | D+H Mechatronic |
Best suited to
- Small natural ventilation window automation systems.
- Single-zone with multiple windows or louvre control.
- Local wall switch operation.
- Weather-protected systems using rain sensor input.
- Small projects where a full modular control panel is not required.
For larger systems: For multiple zones, smoke control, BMS integration or more complex functionality, EBSA can assist with selection of a suitable D+H control panel.
Typical system arrangement
Wall switch → GVL 8304-K → windows open / close
Rain sensor → GVL 8304-K → windows close on rain
Technical notes for specifiers
- This is a natural ventilation control panel.
- It is not intended as a smoke control panel and does not include a dedicated fire input or failsafe battery backup operation.
- The GVL series does not provide automatic close on loss of power, if this function is required consider a D+H RZN or custom CPS-M panel.
- Confirm total actuator current before selection.
- Confirm number of windows, actuator type and grouping/zones.
- Confirm weather sensor and control requirements.
- Confirm whether BMS or other third-party controls are required.
Notes for builders, electrical contractors and aluminium joiners
Builder / electrical contractor
- Allow for power supply requirements based on the final panel configuration.
- Allow cabling between panel, switches, sensors and actuators.
- Confirm final panel location with EBSA.
- Confirm commissioning responsibilities before installation.
Architectural aluminium joiner (drive compatibility)
- Confirm drive compatibility before fabrication.
- Allow for drive fixing points and cable pathways in the window frame (where possible) to conceal cables.
- Contact EBSA to select the correct bracket set for your window.
- Confirm whether EBSA is supplying drives only or a full turnkey solution.
- Confirm what colour drives (grey is standard) are required and whether a standard 2.5m cable tail is suitable for your windows.
Compatible products
Compatible with:
- D+H 24 V chain drives.
- Rain sensors.
- Wall switches.
- Natural ventilation accessories.
Consider instead:
- RZN smoke control panel — where smoke ventilation, fire zones or failsafe battery operation is required.
- CPS-M modular control panel — customised to each project, with flexible zoning for natural ventilation, smoke control, stand-alone logic or BMS interfacing.
About CPS-M: EBSA CPS-M panels are custom designed as project-specific control solutions using D+H modular components. The process begins by establishing the project scope, control philosophy and functional requirements, which are then developed into shop drawings and wiring schematics. Once approved, the panel is built by EBSA to suit the agreed design and control logic.
