Tld Acu-302-h-cup Manual [top] Access
The unit's 24-ton cooling capacity is impressive, driven by two efficient Danfoss scroll compressors. A key feature is its , which allows the system to modulate its cooling output to match demand, saving fuel and reducing wear. Furthermore, a hot gas capacity control system prevents the evaporator coils from freezing, ensuring reliable cooling even under high-humidity or low-load conditions.
| Category | Specification | Details | | :--- | :--- | :--- | | | Model | ACU-302-H-CUP (Heating, Cooling, Utility Power) | | | Series | ACU-302 | | | Manufacturer | TLD (TLD Group) | | | Type | Diesel-Electric Pre-Conditioned Air (PCA) Unit | | | Aircraft Compatibility | Narrow-body, Regional Jet, Commuter (e.g., A320, B737) | | Performance | Cooling Capacity | 24 Nominal Tons of Refrigeration (84 kW) | | | Cooling Heat Removal | Up to 288,000 BTU/hr | | | Heating Capacity | 234,000 BTU/hr (68.5 kW) | | | Air Flow | Up to 190 lbs/min (86 kg/min) | | | Supplied Air Temperature (Cooling) | 35°F - 50°F (2°C - 10°C) at 100°F & 50% RH | | | Supplied Air Temperature (Heating) | 100°F - 120°F (38°C - 44°C) | | Physical | Length | 186 inches (4,715 mm) | | | Width | 82.5 inches (2,096 mm) | | | Height | 71 inches (1,804 mm) | | | Weight | 7,580 lbs (3,438 kg) | | Power & Engine | Engine Manufacturer | Cummins | | | Engine Model | QSB 4.5 (Tier 3) / QSF 3.8 (Tier 4) | | | Generator Output | 60 kW | | | Utility Power Input | 380-480 VAC, 3-Phase, 50/60 Hz | | Refrigeration | Refrigerant | R-134a (Environmentally Safe) | | | Compressor Type | 2 x Hermetic Scroll Compressors (Danfoss) | | Fuel & Operation | Fuel Tank Capacity | 77 gallons (291.5 liters) | | | Fuel Type | JET A (with filter for Tier 3 units) | | | Operating Ambient Temp. | -20°F to 120°F (-29°C to 49°C) | | | Runtime at Full Load | Approximately 16 hours |
Observe the hydraulic fluid and compressor oil sight glasses. Mechanical Inspections Look for signs of fluid leaks under the trailer chassis. Check the condition and tension of all drive belts.
The is a heavy-duty, trailer-mounted air conditioning and heating unit designed to service narrow-body, regional jet, and commuter aircraft. Unit Overview tld acu-302-h-cup manual
Never open refrigerant lines or cooling circuits without properly recovering the refrigerant first.
The ACU-302 series is known for its rugged construction. It features a galvanized steel frame and powder-coated aluminum panels, creating a corrosion-resistant chassis capable of withstanding the harsh environment of an airport apron. This durability is a key factor in its long operational lifespan. The use of commercially available, off-the-shelf parts for many components also contributes to reduced maintenance requirements and costs.
On the control interface, select COOLING or VENTILATION mode. The unit's 24-ton cooling capacity is impressive, driven
Turn the selector switch to COOL . The system will automatically engage the refrigeration compressors and modulate flow based on the thermostat settings.
Calibrate temperature control sensors and safety pressure switches.
(Windows/Linux): Download from support.tldsecurity.com/tools/acudiscovery | Category | Specification | Details | |
Pull the air duct out of the built-in storage bin. Inspect the 8-inch high-pressure hoses for tears, kinks, internal lining degradation, or worn connection gaskets.
Magnetic reed switch (rear left)
: Inspect the 12-inch or 14-inch Pre-Conditioned Air (PCA) delivery hose for punctures, tears, or worn gaskets.
Clean condenser and evaporator coils with compressed air or low-pressure water.