Maintenance of Building Systems,
Part I
This system extracts excess interior heat and transfers it to areas of
the building that require heat. This is expensive to install. - Correct
Answer ✔️✔️Heat recovery system
Devices that convert signals from one medium to another - Correct
Answer ✔️✔️Transducers
This system controls devices that use electricity as a power source -
Correct Answer ✔️✔️Electric control devices
This system uses electronic technology to detect, amplify, and
evaluate sensor information - Correct Answer ✔️✔️Direct
Digital Control (DDC) system
,A type of system that the airstream flows constantly through the
ducts, and the temperature and humidity of that air varies - Correct
Answer ✔️✔️Constant-air-volume system
A type of system where the air is controlled at a relatively constant
temperature and moisture content. This system has sufficient static
pressure, and has greater energy savings than constant-volume
systems. - Correct Answer ✔️✔️Variable-air-volume (VAV)
system
This system links the integrated BAS for a power or heating plant with
corporate business systems so that management is kept fully briefed
on costs, efficiencies, and trends in operating systems - Correct
Answer ✔️✔️Intelligent Building Systems (IBS)
The ability to monitor the controls of one manufacturer from the
system of another - Correct Answer ✔️✔️Connectivity
, Enabling one manufacturers controls to be programmed and operated
from another manufacturers system - Correct Answer ✔️✔
️Interoperability
This feature monitors the rate of electrical consumption and starts
shedding loads when usage exceeds a predefined demand limit -
Correct Answer ✔️✔️Demand limiting
A strategy that monitors heating and cooling loads in the building
spaces and adjusts the discharge air temperature to the most efficient
levels to satisfy the measured load. This works best with constant-
volume systems. - Correct Answer ✔️✔️Supply-air reset (SAR)
This feature of DDC contains detailed information about specific
aspects of the facility. Example: lists all monitored and controlled
equipment and variables with their current status. - Correct Answer
✔️✔️Summaries