Retrotec USACE - Manual (Page 63)

Chapter 5 41
Ventilation and air-conditioning running times and supply air tempera- ■
tures.
Setpoints and time schedules. Make sure by using trend logging that
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these are actual values and there is no override by manual settings.
Air handling process operation (heating, cooling, heat recovery, humidi-
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fying, dehumidifying, etc.).
Use of simultaneous heating and cooling.
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Operation of fans and pumps (frequency drives, damper and valve con- ■
trols, VAV systems, etc.).
Room temperatures (roughly).
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Use of windows by building occupants (ventilation through open win- ■
dows).
Magnitude of uncontrolled ventilation, infi ltration.
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Use of electric appliances, schedules, and stand-by modes. ■
Use of electric heaters, frost protection heating. ■
Most common lamp types. ■
Lighting controls. ■
5.7.3 Level II Assessment
During site assessment
Check items listed in the Level I assessment ■
Measure supply air temperatures, air fl ows of main air handling units, ■
heat-recovery effi ciencies, etc.
Measure room temperatures
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Analyze operation of heating system ■
Analyze operation of air handling processes ■
Analyze operation of cooling systems ■
Check set-points and operation of room heating and cooling equipment ■
Check and measure the electrical demand of fans, pumps, chillers, ■
lighting, main users of socket power supply
Check reactive power compensation
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Analyze nighttime energy use (lighting, socket load, fans, pumps, etc.) ■
Analyze summer and winter energy demand ■
The time-depending distribution of electric power consumption = hourly
power demand (if possible).