Building Services Engineering 5th Edition Handbook

Plant and service areas 381
4. Rotary and reciprocating compressors.
5. Gas-fired water heaters.
18. How often do technical workers enter large plant rooms?
1. Once a year.
2. Daily, several times.
3. Monthly service checks and fan belt changes.
4. Hourly logging of energy and operational data.
5. Once a week.
19. What is the space temperature control requirement for plant rooms?
1. None, they always remain cool.
2. Does not matter as air temperature never gets too hot for the mechanical plant.
3. Wall and roof ventilation openings.
4. Nobody works in there so it does not matter.
5. Natural and mechanical ventilation for workers and where necessary, cooling to limit
room temperature for workers and electrical systems.
20. What is involved with lift motor rooms?
1. Driving motor and winding gear are located in basement plant areas.
2. Each lift has its driving motor and winding gear mounted above the shaft within a
ventilated and cooled roof-level plant room.
3. All motors are located on top of each passenger car.
4. One electric motor drives all lift cars in a group from a roof-level plant room.
5. Sealed concrete plant room above each lift shaft.