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Hitachi High Efficiency Ceiling Suspended Indoor Unit FAQs
What’s the difference between an indoor and outdoor unit?
Outdoor units house the compressor and release or absorb heat, while indoor units distribute conditioned air into the building. Together, they form a complete HVAC system.
Can HVAC systems help improve air quality?
Yes. Many units include advanced filtration that removes dust, allergens, and pollutants, contributing to a healthier indoor environment.
Are HVAC systems noisy?
Modern indoor units are designed for quiet operation, with sound levels often comparable to a whisper, making them suitable for bedrooms and offices.
What size HVAC unit do I need?
Sizing depends on room dimensions, insulation, occupancy, and usage. Oversized or undersized systems waste energy and reduce comfort - a qualified installer should calculate the correct capacity. Contact us at The MEP Shop today and we can help you size up your project correctly.
How energy efficient are modern air conditioning and heat pump systems?
Modern HVAC systems achieve high seasonal efficiency ratings - SEER (Seasonal Energy Efficiency Ratio) and SCOP (Seasonal Coefficient of Performance), lowering running costs compared to older units while reducing carbon emissions.
What refrigerants are commonly used in modern HVAC systems?
Most modern units use R32 or R410A refrigerants. R32 has a lower global warming potential (GWP), making it more environmentally friendly. We are starting to see the emergence of R290 refrigerant used in some newer units.