D+H Window Automation NZ
Louvre Drives
D+H electric drives for automated louvre windows, natural ventilation, smoke control, replacement projects and existing louvre system support.
EBSA New Zealand supplies and supports D+H Mechatronic louvre window drives for compatible architectural louvre systems, natural ventilation, smoke control and replacement applications.
The D+H range includes LD Series drives configured for different louvre arrangements, together with LAH 65 products used for current and legacy high-force louvre systems.
EBSA can assist with identifying installed drive models, selecting current replacements, programming compatible drives, synchronisation, control-panel integration, field wiring, commissioning and ongoing maintenance.
Electric drives for automated louvre windows
Louvre drives provide controlled linear movement through the internal louvre operating mechanism so multiple blades can open and close together. Depending on the system, they may be used for daily ventilation, weather response, smoke control, BMS integration or local switch operation.
D+H LD Series drives are designed for discreet integration with compatible louvre systems. The primary operating linkage and moving mechanism are concealed within the louvre framing rather than exposed across the face of the blades.
Drive force, stroke, mounting position, internal mechanism geometry, control technology and synchronisation must be reviewed as one coordinated arrangement.
Building owners and maintenance teams often know only the model number shown on the installed actuator. EBSA can use that reference to identify the D+H drive family, review the existing system and determine the appropriate current replacement or service pathway.
Key benefits
- D+H drive technology developed for compatible louvre operating mechanisms
- Primary operating linkage concealed within the louvre framing on compatible LD Series installations
- Drive options for natural ventilation, smoke control and general automation
- Current replacement support for selected legacy D+H louvre-drive systems
- Model identification using installed D+H product references
- 24 V DC and 230 V AC configurations depending on drive family
- PLP, BSY+ and ACB technologies across selected models
- Synchronised operation for compatible multi-drive arrangements
- Programming, commissioning and maintenance support from EBSA
D+H louvre drive families
The current D+H louvre-drive offering is centred on the LD Series and LAH 65 families. These products address different louvre mechanisms, force requirements, control arrangements and replacement applications.
LD Series louvre drives
The LD Series includes compact and high-force drives configured for different louvre mechanisms and operating requirements.
The generic D+H technical family is identified as LDx. Installed and ordered drives normally use a completed model reference such as LDS, LDF, LDH, LDJ or LDE followed by the drive size, stroke or control configuration.
LAH 65 louvre drives
LAH 65 drives are specialist D+H OEM louvre actuators used for compatible high-force and synchronised louvre systems.
Current LAH 65, LAH 65 BSY+ and LAH 65-K products also provide the replacement pathway for selected legacy LAH 61, LAH 62, LAH 63 and LAH 64 installations.
Understanding D+H louvre drive model references
D+H uses LDx as the generic technical designation for adaptable louvre drives. In the supplied or installed product code, the letter following LD identifies a manufacturer-specific or application-specific configuration.
Examples of installed references include:
- LDS 100/060, LDS 100/070 and LDS 100/080
- LDF 100/030, LDF 100/036, LDF 100/060 and LDF 100/070
- LDH 800/070
- LDJ-1204-1-ACB
- LDE 100/036
- LDx-1204-1-ACB
- LDx-1400 and LDx-1800 configurations
The model reference alone may not confirm every replacement requirement. The installed stroke, voltage, control technology, bracket arrangement, operating direction and controller should also be checked before a replacement drive is ordered.
When louvre drives are used
- Automated glass or aluminium louvre windows
- Natural ventilation and mixed-mode ventilation systems
- Smoke control and smoke relief openings
- High-level louvres operated from a wall switch or controller
- Weather-responsive ventilation systems
- BMS-controlled façade openings
- Replacement of failed or obsolete D+H louvre drives
- Synchronised multi-drive louvre arrangements
- Existing buildings requiring programming or recommissioning
LD Series drive technologies
LD Series drives are available in different force, stroke, voltage and control configurations. The correct version depends on the louvre mechanism and required operating functions.
LDx 100 Series
The LDx 100 platform covers compact manufacturer-specific louvre-drive configurations using model references such as LDS, LDF, LDH and LDE.
The installed model code and relevant instructions should be used when confirming the replacement drive and mounting arrangement.
LDx-1204-1-ACB
The LDx-1204 platform provides a higher-force 24 V DC ACB-capable solution for compatible centrally operated louvre mechanisms.
Manufacturer-specific variants, including references such as LDJ-1204-1-ACB, use the corresponding D+H technical platform with application-specific mechanical details.
LDx-1400 and LDx-1800
LDx-1400 and LDx-1800 configurations provide increased force for demanding louvre applications.
Selected models are available with PLP or ACB technology in 24 V DC versions and with compatible 230 V AC configurations.
LAH 65 and legacy louvre-drive replacement support
EBSA supplies current D+H OEM LAH 65 louvre drives for compatible replacement and new-system applications.
Current product variants include:
- LAH 65
- LAH 65 BSY+
- LAH 65-K
These products provide the current replacement pathway for selected installations using historic LAH 61, LAH 62, LAH 63 and LAH 64 drive references.
Legacy replacement should include a review of the complete installed arrangement. The existing drive code, voltage, controller, synchronisation, mounting arrangement, cable arrangement and programming should be confirmed before replacement.
Programming and synchronisation
Selected D+H louvre drives use PLP, BSY+ or ACB technology depending on the product family and control arrangement.
PLP configuration
PLP models use compatible D+H programming equipment to configure selected drive parameters for the application.
BSY+ synchronisation
BSY+ allows compatible drives to operate together as a coordinated set where the louvre mechanism requires multiple drive points.
ACB communication
ACB-capable drives support digital configuration, addressing, feedback and communication when connected to compatible D+H ACB control equipment.
EBSA has the D+H programming capability required to identify, configure, synchronise and commission compatible current and legacy louvre-drive arrangements.
Natural ventilation and smoke control
D+H louvre drives can form part of natural ventilation, general façade automation and smoke control systems when coordinated with compatible control equipment.
Natural ventilation functions may include local wall-switch operation, temperature response, rain and weather control, timers, BMS interfaces and programmed ventilation sequences.
For smoke control applications, the louvre assembly, drive, control panel, fire alarm interface, power supply, field cabling and commissioning process must be coordinated as one complete system.
Concealed mechanism and system coordination
On compatible LD Series installations, the primary louvre linkage is concealed within the framing. This provides a clean architectural appearance without an exposed operating bar or moving linkage across the louvre blades.
The actuator transfers movement into the concealed mechanism, which then coordinates the opening and closing of the louvre blades. Drive force and stroke must suit the complete louvre assembly rather than an individual blade.
Replacement work should confirm that the internal mechanism moves freely and that blade seals, bearings, pivots and concealed linkage components are not placing abnormal load on the actuator.
EBSA can review the installed drive, product label, available records, photographs, controller and louvre operation to determine the appropriate replacement or service pathway.
Replacing a failed drive without checking the complete louvre mechanism can result in repeat failures where binding, damaged components, incorrect alignment or excessive operating resistance remain unresolved.
Control system options
Depending on the selected drive, D+H louvre systems may use compatible 24 V DC or 230 V AC control arrangements.
EBSA generally prefers 24 V DC systems where the project requires sensors, automated ventilation, smoke control, battery-backed operation, feedback or broader building-system integration.
The control panel and power supply must be selected for the exact drive voltage, current demand, number of drives, cable length, synchronisation and required operating functions.
Identification and replacement checklist
- Clear photograph of the complete actuator
- Photograph of the D+H product label
- Exact installed model reference
- Drive voltage and control technology
- Number of drives operating the louvre
- Existing controller or control-panel model
- Photographs of the actuator mounting, blade connections and accessible mechanism details
- Required opening and closing movement
- Details of any existing fault or failed component
- Confirmation that the blades and concealed mechanism move freely
- Field cable arrangement and accessible cable length
- Access available for replacement and commissioning
Installation, commissioning and maintenance support
EBSA can support new and replacement louvre-drive projects with model identification, drive selection, control-panel coordination, wiring schematics, programming, synchronisation, operational testing and commissioning.
Existing systems can also be inspected and maintained to identify actuator faults, control issues, mechanism resistance and replacement requirements.
Frequently asked questions
What is a louvre window drive?
A louvre window drive is an electric actuator that operates the louvre mechanism so multiple blades open and close together.
The drive must suit the mechanism geometry, required stroke, operating resistance, control system and number of drive points.
What does LDx mean?
LDx is D+H’s generic technical family designation for adaptable louvre drives.
On an installed or ordered drive, the x is normally replaced by a letter identifying a manufacturer-specific or application-specific configuration.
Can EBSA identify a replacement from the model number?
Yes. Model references such as LDS 100/060, LDF 100/070, LDH 800/070, LDJ-1204-1-ACB or LDE 100/036 can help identify the installed D+H drive family and applicable replacement pathway.
Photographs of the actuator label, mounting arrangement, blade connections, accessible mechanism details and controller are also useful.
What replaces older LAH 61, LAH 62, LAH 63 and LAH 64 drives?
Current LAH 65, LAH 65 BSY+ and LAH 65-K products provide the replacement pathway for selected legacy LAH installations.
The exact replacement depends on the original drive, voltage, controller, synchronisation and mechanical arrangement.
Can EBSA program D+H louvre drives?
Yes. EBSA can program and commission compatible PLP, BSY+ and ACB louvre drive arrangements using the applicable D+H tools and system information.
Can one failed drive be replaced within a synchronised set?
Sometimes, but the installed product codes and system configuration must first be reviewed.
Synchronised drives operate as a coordinated set. Compatibility, programming and the condition of the remaining drives should be confirmed before replacing one actuator.
Can louvre drives be used for smoke control?
Yes. Suitable D+H louvre drives can form part of a smoke control system.
The louvre assembly, drive, control panel, fire interface, field cabling and commissioning requirements must be coordinated as one complete system.
Can EBSA maintain existing louvre installations?
Yes. EBSA can inspect, test, program, commission and maintain compatible D+H louvre drive and control systems, including selected current and legacy installations.
EBSA also provides broader maintenance and service support for many operable louvre systems, subject to the installed product, condition, access and availability of suitable replacement components.
Related window automation pages
| Page | What it covers |
|---|---|
| LD Series Louvre Drives | D+H LDx, LDS, LDF, LDH, LDJ and LDE louvre-drive configurations, model identification and replacement support. |
| LAH 65 Louvre Drives | Current LAH 65 products and replacement support for selected legacy LAH 61, LAH 62, LAH 63 and LAH 64 installations. |
| Rack & Pinion Drives | ZA and DXD linear drive families for façade windows, roof windows and demanding automation applications. |
| Chain Drives | VCD, CDC, KA, CDM and CDP compact chain-drive families. |
| Window Control Panels | Natural ventilation, smoke control and project-specific control-panel solutions. |
Discuss louvre drive selection or replacement with EBSA
Correct louvre-drive selection depends on the installed mechanism, model reference, required force and stroke, voltage, control technology, synchronisation, controller and field wiring.
Contact EBSA to discuss a new D+H louvre-drive system, identify an existing actuator or review a current or legacy replacement requirement.
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