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46 TRG-TRC011-EN
notes
period four
Maintenance Considerations
Today, after an absorption chiller is installed and put into operation, it functions
without a full-time attendant. In most cases, the chiller starts and stops on a
schedule controlled by a building automation system or a simple time clock.
Water chillers are designed for maximum reliability with a minimum amount of
maintenance. Like all large mechanical systems, however, certain routine
maintenance procedures are recommended. Periodic inspection of the purge
system, cooling tower, fluid levels, heat transfer surfaces, energy supply, and
pumps helps to maintain the absorption water chiller in peak operating
condition. This period discusses these general maintenance requirements of
absorption water chillers.
Chiller operation should be checked daily and recorded in an operating log.
Standard operating logs include: solution data; evaporator, absorber, and
period four
Figure 54
▲ Chilled water inlet and outlet
temperatures and pressures
▲ Cooling water inlet and outlet
temperatures and pressures
▲ Absorber inlet and outlet
solution temperatures and
concentrations
▲ Absorber spray solution
temperature
▲ Generator inlet and outlet
solution temperatures
▲ Evaporator refrigerant
temperature
▲ Condenser refrigerant
temperature
▲ Crystallization margin
▲ Purge pump-out activity
▲ Gas supply pressure (direct-
fired)
Figure 55