Need help?Do you have a question about the Daikin DM AHU and is the answer not in the manual?
General| Construction | Modular |
|---|---|
| Casing | Galvanized steel |
| Coil Options | Chilled water, hot water, DX |
| Filter Options | HEPA |
| Airflow Rate | 1, 000 - 60, 000 m³/h |
| Dimensions (HxWxD) | Varies by model |
| Weight | Varies by model |
Highlights important notes and warnings for safe and correct operation, disclaiming liability for unqualified personnel.
Outlines safety practices for unit connection, start-up, repair, and maintenance, emphasizing qualified personnel.
Guides installation following industrial practices, emphasizing indoor use and proper support when ceiling hung.
Details requirements for adequate space around the unit for maintenance and proper installation height for condensate drainage.
Explains how to assemble units shipped in sections using pre-installed joint brackets for cabinets and base frames.
Discusses vibration isolators, including spring and restrained types, and their installation.
Details the removal of temporary transport brackets and adjustment of spring isolators for proper leveling.
Explains the application of restrained spring isolators and the insertion of U-shaped plates.
Describes the arrangement of control box and expansion valve kit for VRV AHU, referencing other manuals.
Covers the installation and connection procedures for unit coils, including general guidelines and specific types.
Emphasizes uniform airflow across the coil for performance and preventing moisture carry-over.
Advises on preventing freeze-up in water coils by draining and using anti-freeze solutions.
Covers expansion devices for DX coils, suction piping, thermostatic expansion valve, and pressure drop.
Specifies requirements for drain pipes and traps, emphasizing level installation for proper condensation drainage.
Details electric supply, connection details, grounding, and protection for motors, including VFD control.
Specifies downward motor wiring from the terminal box to prevent condensation water entry and potential failure.
Describes filter types and installation, instructing to insert according to the airflow arrow.
Details modification of pulley diameter by moving the adjustable flange and locking it securely.
Covers power supply and electrical connection for electric heaters, noting the 240V, single-phase rating and safety interlock.
Details the process for removing and replacing the fan/motor assembly, including drive belts and mounting.
Describes how to remove and replace coils, including disconnecting piping and handling stacked coils or DX coils.
Lists essential preparation steps before initial unit operation, including cleaning and securing components.
Covers thorough cleaning, removal of transport brackets, securing fasteners, and sealing air leaks.
Details checks for fan rotation, belt tension, motor connections, voltage, and VFD settings.
Advises checking airflow through the heater and warns about potential damage from unbalanced voltage.
Specifies operating limits for forward curve and airfoil fans, including maximum RPM and kW for different sizes.
Outlines checks for soiling, corrosion, damage, vibration, and securing of bolts and connections.
Checks for dirt accumulation, cleans the unit, and verifies safety controls, cables, and connections.
Details checking and cleaning moisture eliminator blades, ensuring correct positioning.
Step-by-step instructions for assembling the heat wheel unit, including baffle and cabinet sections.
Specifies water quality requirements to prevent scaling and corrosion in heat exchangers and piping.
Provides a checklist for pre-start up and start-up checks for the AHU's fan, coil, and other sections.
To Next Page