Welcome to DT AIR’s FAQ section. Here, we answer common questions about our services, including fridge-trailer refrigeration, home and business air conditioning systems, and industrial refrigeration solutions. If you need any more help, please contact our expert team anytime.
The trailer plugs directly into the mains, and requires a 240 V 1ph, 50 Hz.
The trailer plugs directly into the mains, and requires a 240 V 1ph, 50 Hz.
Yes, our trailers are designed for mobility and can be relocated as needed.
Absolutely. Our trailers are ideal for outdoor events, providing reliable refrigeration for catering and beverage needs.
In the event of loss or damage, please contact us immediately at 01733 844 752 to report the issue. Charges may apply based on the extent of the damage or loss.
Yes, we offer customizable shelving and storage solutions to meet your specific requirements.
Modern air conditioners work by transferring heat, not just generating cold or warm air. In cooling mode, the system extracts heat from indoor air and expels it outside using a refrigeration cycle involving a compressor, condenser, evaporator, and refrigerant gas. The refrigerant absorbs indoor heat at the evaporator coil, then releases it outside via the condenser.
In heating mode (via reverse-cycle or heat pump technology), the process is reversed: the system pulls heat from the outside air—even in cold weather—and transfers it indoors. This makes reverse-cycle systems highly efficient and cost-effective alternatives to traditional heating.
We offer a wide range of systems tailored to domestic and commercial needs, including:
Wall-mounted split systems – Ideal for single rooms or small spaces
Multi-split systems – One outdoor unit linked to several indoor units
Ducted systems – Fully integrated, discreet heating and cooling for entire buildings
Routine servicing is essential to maintain performance, air quality, and energy efficiency. It prevents dust build-up, bacterial growth, gas leaks, and mechanical faults. Well-maintained systems run quieter, last longer, and use less energy—saving you money and hassle over time.
Some warning signs include:
Reduced airflow or poor temperature control
Unusual noises (buzzing, rattling, or clicking)
Leaks or pooling water
Strange smells when running
Higher-than-usual energy bills
Addressing these early can prevent breakdowns and costly repairs. Contact us if you are worried.
For residential systems, we recommend a full service annually. For commercial premises, especially those running AC continuously, twice yearly inspections are ideal—pre-summer and pre-winter.
Refrigeration systems remove heat from an enclosed space using a closed-loop cycle. Here’s how:
A refrigerant circulates through the system and evaporates at low pressure, absorbing heat from inside the fridge.
This gas is then compressed, raising its temperature and pressure.
It flows to the condenser coil, usually located at the rear or outside, where it releases the heat to the surrounding air and condenses back into a liquid.
The liquid then passes through an expansion valve, reducing its pressure and cooling it further before re-entering the evaporator.
This cycle keeps the internal temperature low, preserving food, medicine, or sensitive equipment.
We supply and install:
Undercounter and display fridges for retail and hospitality
Cold rooms and walk-in freezers for bulk storage
Bottle coolers and back bar fridges
Chest freezers, blast chillers, and specialist units for catering, pharmaceutical, or industrial use
Each is designed to meet strict hygiene, temperature, and safety regulations.
And so much more!
For light use, a yearly service may be sufficient. For commercial or high-volume operations, a 6-month schedule is advised. Regular maintenance prevents:
Compressor failure
Ice build-up
Temperature fluctuations
Excess energy use
Costly stock loss from unnoticed faults
Key factors to consider include:
Volume of goods stored
Required temperature range
Energy efficiency and environmental impact
Site access and available space
Industry-specific compliance (e.g. FSA, HACCP, MHRA)
We offer free consultations to help assess your needs and recommend the most efficient and scalable solution.
Sudden temperature changes or alarms
Unusual noises (clicking, grinding, hissing)
Excess condensation or puddles
Frost or ice forming in unusual places
Compressor running constantly or short-cycling
Higher electricity bills without increased use
Addressing issues early can prevent full system breakdowns and protect your stock.
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