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| | | Machine Rooms • Provision of phone wiring from phone sevice and / or remote locations to elevator manufacturer controllers. • Noise design insulation should be installed between the machine room and adjacent residential areas. • Patching and plastering of all cutouts made necessary by elevator work. | | |
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| | | • A suitable machine room with legal access, ventilation and concrete floor. The temperature in the machine room should be maintained between 5 °C and 40 °C. Relative humidity should not exceed 90%(monthly) and 95%(daily) non - condensing. Ventilation shall suit the Elevator Contractor's heat release requirements. | | |
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| | | • Machine room entrance size shall be 900mm(W) x 2000mm(H) and cannot be used as passageway leading to any other place. Forced locking system(automatic - closing) shall be furnished. | | |
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| | | • Main line power supply shall not exceed ± 5% variance. | | |
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| | | • A three (3) phase, four(4) wire electrical feeder system with an equipment grounding conductor terminating in the machine room. Size of the feeders and grounding conductor to suit elevator power characteristics. | | |
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| | | • Installation of lead - in wire and earth wire between building main power rustic board and machine room incoming distribution board. However, machine room lighting source supply shall be separately installed. | | |
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