Does BCA Green Mark require temperature sensor for each chiller? Is it costly to install accurate temperature sensors to comply with GM NRB V4.1 and ENRB V3.0?

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Does BCA Green Mark require temperature sensor for each chiller? Is it costly to install accurate temperature sensors to comply with GM NRB V4.1 and ENRB V3.0?

Temperature sensors are not required for individual chillers. For GM NRB V4.1 and ENRB V3.0, temperature sensors are to be provided for chilled water and condenser water loop at the main headers, i.e. two (2) for measuring the supply and return temperature at the chilled water header and two (2) at condenser water header, a total of four (4) temperature sensors.

Although these temperature sensors are more expensive than standard BAS sensors, each calibrated sensor can be procured at about S$500.

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