(b) Table 2-12 below lists Heat Dissipation Data for elevator equipment based
on electronic controls, 1.5 m/s (300 fpm) speed, and normal acceleration, are
as follows:
Table 2-12 Heat Dissipation Data for Elevator Equipment
Capacity kg (lb)
kW (HP)
WATTS (BTU/hr) per Car
1135
(2500)
18.7 (25)
3225
(11,000)
1360
(3000)
18.7 (25)
3370
(11,500)
1590
(3500)
22.4 (30)
3516
(12,000)
1815
(4000)
30 (40)
4395
(15,000)
2.10.6 EMERGENCY GENERATOR ROOM
2.10.6.1 GENERAL
(a) Indoor Design Conditions:
Summer: 42 degrees C (110 degrees F)
Winter: 4 degrees C (40 degrees F)
(b) Provide heat and ventilation in emergency generator building or room when
the engine-generator set is idle and operating as well. See VA Standard
Detail 15900-17 for control of the heating and ventilating equipment. Analyze
noise levels and provide attenuation, if necessary. Electric unit heater,
thermostatically controlled shall maintain 15 degrees C (60 degrees F)
minimum space temperature when the generator is not in operation. Extra care
should be taken in sizing the unit heater capacity particularly when the
radiator and fan are installed in the generator room. The cracks in the
exterior walls, which could be caused due to the installation of large
louvers and the louvers not fully shut in closed position, could create heavy
infiltration of cold air.
2.10.6.2 ENGINE-GENERATOR OFF
Provide a thermostatically controlled ventilation exhaust fan to deliver 15
air changes per hour.
2.10.6.3 ENGINE-GENERATOR OPERATING
The air intakes and exhaust outlets shall be located so air does not short
circuit and air shall pass over the engine-generator set before it is
exhausted. Additional ventilation shall be provided as required to reject the
heat from the engine-generator set, muffler (if installed in room) and
exhaust pipe. See electrical specification Section 156208, "ENGINE
calcium silicate insulation.
2.10.6.4 RADIATOR AND FAN TOGETHER
When the radiator and fan for the engine-generator are installed in the same
room as the engine-generator, provide the following:
(a) A sheet metal plenum, with a flexible connection, between radiator and
exhaust louvers.
HVAC DESIGN MANUAL
2-28
HVAC SYSTEMS AND EQUIPMENT
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