Retrotec USACE - Manual (Page 332)

G2 ENERGY & PROCESS ASSESSMENT PROTOCOL
Condition monitoring (preventive maintenance):
Electrical switchgear: switches, fuses, circuit breakers, transformers, ■
main switchgear panels, automatic transfer switches, generators, bus
connections, distribution panels, electrical wiring, outlets
Computer system: power distribution units (PDUs) and the uninterrupt- ■
ible power supply (UPS) system
HVAC equipment, motors, bearings, belts, heat exchangers ■
Drive gears and drive belts (for excessive friction) ■
Motors and motor control centers: bearings, windings, feeders, exciters ■
Compressor heads ■
Tank levels and insulation problems ■
TABLE G1. SOME APPLICATIONS OF IR THERMOGRAPHY FOR ENERGY AND
PROCESS OPTIMIZATION ASSESSMENT.
Systems Application
Boilers Survey fi re box for evidence of refractory deterioration. 1.
Survey boiler for evidence of air leakage, infl ow, or exhaust. 2.
Survey blowdown lines, relief valves, drain isolations, and other possible system penetrations 3.
for evidence of improper heat loss/leakage.
Steam systems Survey system drains/blowdown lines for system heat loss. 1.
Survey system steam traps for proper operation and evidence of excessive heat loss (ensure 2.
proper trap operation).
Survey system lines for evidence of inadequate insulation. 3.
Hot water systems Survey heat exchangers for proper operation and validation of installed instrumentation. 1.
Cold water systems Survey system for leaks. 1.
Pumps/motors Survey for indication of alignment problems. 1.
Survey for indication of bearing overheating. 2.
Survey for indication of motor overheating. 3.
Building envelope Survey for evidence of energy loss; convection (air movement)/conduction (inadequate insula- 1.
tion).
Survey for moisture (walls, roof, fl ooring). 2.
Grout fi ll in CMU. 3.
Misc. Survey radiant fl oor/ceiling heating for evidence of coil leakage/blockage for a hydronic system 1.
or electrical failure for an electrical system.
Survey heating and cooling coils at VAV boxes and similar system heat exchangers for evi- 2.
dence of simultaneous heating and cooling.