HVAC and BEMS | Innotech Training

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M

MAC Address

Every network device must have a unique Media Access Control (MAC) address to identify it. This is a hard-coded address that is assigned at time of manufacture and usually cannot be changed. This address is used for LAN communications and is in a hexadecimal format.

MCC

Motor Control Center

MD

Motorised Damper

Mechanically Ventilated Crawlspace System

In HVAC, a system designed to increase ventilation within a crawlspace, achieve higher air pressure in the crawlspace relative to air pressure in the soil beneath the crawlspace, or achieve lower air pressure in the crawlspace relative to the air pressure in the living spaces, by use of a fan.

MMI

Man Machine Interface

MOP

Maximum Operating Pressure

MS/TP

Master-Slave/Token-Passing (MS/TP) is a data link protocol commonly used in building automation systems as a field bus.

MVCD

Motorised Volume Control Damper