Donald Daw, commercial director with the company, explains, ‘No building-services equipment will operate for ever. There comes a time when replacement has to be considered. Clearly, there are cost implications to this decision, which can be discouraging. However, it is important to identify the tipping point between repairing or replacing an air-conditioning system.’

The guide also explains that air-conditioning systems should have regular inspections, following three key principles.

• To encourage good maintenance.

• To encourage efficient use of controls.

• To identify opportunities to reduce cooling loads or operating times.

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