High outdoor temperature changes real capacity
Solar gains, glazing, occupancy, equipment loads, roof exposure, opening hours and ventilation all influence cooling demand and actual equipment performance.
Indoor and outdoor unit location matters
Air distribution, noise, condensate drainage, line length, service access and outdoor-unit heat rejection affect reliability and comfort.
Commissioning is part of performance
Leak testing, evacuation, electrical checks, condensate tests and correct settings are essential before performance can be judged reliably.
Solar gain, internal loads and electrical supply
Large glazing, roof exposure, people, lighting and equipment can substantially increase cooling load. Electrical capacity and distribution must also be checked; simple square-metre rules are not accurate enough for serious design.
Filters, condensate and operational maintenance
Dust, filter condition, condensate drainage and accessible indoor units directly affect performance and hygiene. Service access, cleaning intervals and reliable drainage should be part of the design.
