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2. Addition or replacement of a main component of a central building services installation, including—

(a) addition or replacement of a complete electrical circuit at rating of 400A or above;

(b) addition or replacement of a unitary air-conditioner or airconditioning chiller of a cooling or heating rating at or exceeding 350 kW; or

(c) addition or replacement of the motor drive and mechanical drive of a lift, an escalator or a passenger conveyor.

Notes

(1) For the purposes of item 1 of this Schedule—

(a) an occupants’ clubhouse or a car park is to be regarded as a separate common area within the building; and

(b) all other common areas are to be regarded together as a separate common area.

(2) If works are carried out for more than one place in a unit or a common area of a prescribed building and, having regard to all relevant factors of the case, the works should reasonably be regarded as being under the same series of works, the reference to floor area in item 1 of this Schedule is a reference to the aggregate of the floor area of all those places.

(3) In Note (2), “relevant factors” (有關因素) means—

(a) whether the works are carried out by a single contractor;

(b) whether the works are carried out under a single agreement;

(c) whether the works are carried out pursuant to a single works order;

(d) the time at which and the period during which the works are carried out;

(e) the manner in which the contractor is paid; and

(f) whether the works are treated as a single project in the plans and works programme.

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Buildings that Require Energy Audit

1. Commercial building.