Overview
CDM chain drives are compact high-force electric window drives used to open and close compatible façade windows, roof windows, skylight windows and selected high-level commercial openings. They are best positioned where a project requires more force than KA or CDC drives can provide, while still requiring a compact chain drive format.
The CDM range includes 24 V DC and 230 V AC options, with PLP, BSY+ and ACB-capable variants depending on the selected model family. This allows the drive to be selected around the window load, required stroke, power supply, control panel, synchronisation requirements and project wiring strategy.
CDM drives can be used for natural ventilation and smoke control systems when selected with a suitable controller, field cabling, bracket arrangement and project-specific operating strategy. EBSA NZ can assist with selecting the correct CDM model, control panel, ACB or BSY+ functionality, bracket set and wiring approach for the project.
At-a-glance
| Product type | Compact high-force electric chain drive |
|---|---|
| Product range | D+H CDM Series |
| Models covered | CDM-1-PLP, CDM-1-ACB, CDM-5-ACB and CDM-5-BSY+ variants |
| Typical use | Heavy commercial natural ventilation, general window automation and smoke control applications |
| Window applications | Compatible façade windows, roof windows, skylight windows and selected high-level commercial openings |
| Power / control options | 24 V DC PLP, 24 V DC ACB, 230 V AC ACB and 230 V AC BSY+ options depending on model |
| Force | 1000 N pressure force / 1000 N tensile force |
| Stroke options | 600 mm, 800 mm and 1000 mm listed options, subject to selected model and pressure load review |
| Sound level | LpA ≤ 45 dB(A) |
| Protection rating | IP 42 |
| Fire resistance | B300, subject to the selected model and complete system design |
| Controller requirement | Requires a compatible controller, field cabling, suitable switching or sensor inputs and project-specific commissioning |
| Manufacturer | D+H Mechatronic |
Models in the CDM range
| Model / drive type | Power / technology | Stroke | Datasheet |
|---|---|---|---|
| CDM-1000-1-PLP | 24 V DC PLP | 600 mm, 800 mm, 1000 mm | 600 | 800 | 1000 |
| CDM-1000-1-ACB | 24 V DC ACB | 600 mm, 800 mm, 1000 mm | 600 | 800 | 1000 |
| CDM-1000-5-ACB | 230 V AC ACB | 600 mm, 800 mm, 1000 mm | 600 | 800 | 1000 |
| CDM-5-BSY+ | 230 V AC BSY+ | 600 mm, 800 mm, 1000 mm | CDM-5-BSY+ |
CDM drives are generally selected where the window is outside the preferred KA or CDC range, where a compact high-force chain drive is required, or where a heavier commercial smoke control or skylight application needs up to 1000 N force. The correct model should be selected against the window type, opening geometry, stroke requirement, power supply, controller, bracket arrangement, field cabling and project operating strategy.
Downloads
Download the relevant installation information for the selected CDM model. Some instruction documents are shared across multiple model or stroke variants rather than being model-specific, so confirm the correct document against the selected drive type, stroke, power supply and control technology before installation.
| Drive type | Applies to | Installation instructions |
|---|---|---|
| CDM-1-PLP / CDM-1-ACB | 24 V DC PLP and 24 V DC ACB CDM models | CDM-1 PLP / ACB instructions |
| CDM-5-ACB / CDM-5-BSY+ | 230 V AC ACB and 230 V AC BSY+ CDM models | CDM-5 ACB / BSY+ instructions |
Best suited to
- Heavy commercial façade windows requiring more force than CDC or KA drives can provide.
- Large roof windows and skylight systems requiring a compact high-force chain drive.
- Commercial natural ventilation systems using heavier compatible window openings.
- Smoke control systems where the CDM drive, control panel, window and project strategy are suitable.
- Applications requiring 1000 N pressure and tensile force from a compact chain drive body.
- Projects requiring BSY+ synchronisation or ACB-capable communication through a compatible control system.
- Applications where a compact CDM chain drive is preferred before moving to CDP or rack and pinion drive options.
Typical system arrangement
A CDM chain drive does not operate on its own. It requires a compatible controller, field cabling, suitable switching or sensor inputs, and project-specific wiring and commissioning to achieve the required open and close operation.
For EBSA NZ projects, the CDM drive should be selected together with the control panel, wiring strategy, smoke control or natural ventilation requirements, bracket arrangement, synchronisation requirements and commissioning approach.
Drive and controller selection
The functionality of a CDM chain drive system is determined by the selected drive, controller, field cabling and programmed control strategy. The drive provides the mechanical opening and closing movement, while the controller determines how the window operates.
BSY+ CDM models should be selected where synchronised operation is required, such as applications with multiple drives on one sash or where controlled group movement is needed. ACB-capable CDM models should be selected where the control architecture can use ACB communication for compatible digital communication, addressing and feedback.
ACB functionality only provides its full benefit where the selected control architecture supports ACB communication. If an ACB-capable drive is connected to a conventional controller that does not use ACB communication, the additional digital communication features are not utilised.
For smoke control applications, the drive must be selected as part of the complete system, including the window, control panel, fire interface, field cabling, power supply, installation, commissioning and project approval pathway.
Selection and specification notes
- Confirm the window type, sash size, sash weight, required opening distance and opening angle before selecting a CDM chain drive.
- Confirm whether the application is for natural ventilation, smoke control, general window automation or a combined strategy.
- Confirm whether a 24 V DC or 230 V AC CDM option is required.
- Confirm whether PLP, BSY+ or ACB functionality is required and whether the selected controller can support it.
- Confirm the required stroke, force, voltage and current draw for the selected CDM model.
- Confirm whether a single drive or synchronised multi-drive arrangement is required.
- Confirm whether pressure load review is required for the selected stroke and window arrangement.
- Confirm the number of drives per window, the number of windows per control group and the available control panel capacity.
- Confirm bracket requirements, cable routes, cable tail requirements and access for servicing before window fabrication or installation.
- For smoke control projects, confirm the fire strategy, smoke control panel, fire interface, cable requirements, commissioning process and approval pathway.
- EBSA NZ has its own Masterspec work section/code and can prepare project-specific specification content for inclusion in the project documentation. This can cover the selected drive family, control panel, operating strategy, interfaces, field cabling and commissioning requirements.
Compatible products
CDM chain drives are normally selected as part of a complete window automation, natural ventilation or smoke control package. Depending on the project, they may be used with:
- Compatible natural ventilation control panels.
- D+H smoke control panels, where suitable for the project design.
- CPS-M project control panels where ACB functionality, system feedback or advanced control logic is required.
- Wall switches and local control points.
- Room temperature controls.
- Rain and weather sensors, where supported by the selected controller.
- BMS or third-party interfaces, where specified.
- Suitable D+H CDM bracket sets.
- Compatible façade, roof, skylight and high-level window systems.
Part of the EBSA NZ chain drive range
CDM chain drives are part of EBSA NZ’s wider D+H Mechatronic chain drive range. They sit above VCD, CDC and KA where the project requires higher force, compact high-force geometry, larger commercial openings, skylight applications or a robust smoke control drive arrangement.
Where quiet operation and smaller sash sizes are the main priorities, EBSA NZ will normally review CDC first. Where the application requires very high force, longer strokes, larger skylights or a heavier-duty drive arrangement, EBSA NZ can review CDP or rack and pinion drive options as part of the project selection process.
Consider instead
- VCD Chain Drives: consider for simple residential and light commercial natural ventilation applications where a compact ventilation drive is sufficient.
- CDC Chain Drives: consider where whisper-quiet operation, compact installation or ACB-capable functionality is required and the window is within the CDC force and stroke range.
- KA Chain Drives: consider for commercial chain drive applications requiring more force than VCD or CDC, but less force than CDM.
- CDP Chain Drives: consider for the heaviest chain drive applications or where strokes of up to 1500 mm are required.
- Rack and Pinion Drives: consider where the window load, opening geometry or external application is better suited to rack and pinion operation.
- Louvre Drives: consider where the opening is an operable louvre system rather than an awning, casement, skylight or roof window sash.
Talk to EBSA NZ about CDM chain drive selection
Correct CDM drive selection depends on the window type, opening geometry, required stroke, control method, bracket arrangement, field wiring, smoke control or ventilation strategy and project requirements. EBSA NZ can assist with reviewing the CDM model, controller, accessories and coordination requirements before products are selected.
