Chillers - Fix or Replace?
Before   and   After

Before   and   After

Chiller   after   1  y ear   with    no   maintenance

Chiller   after   1  y ear   with    no   maintenance

Chillers are an enormous cost for facilities, both for first costs and operation expenses. They use tremendous amounts of energy and require regular maintenance. For maintenance and engineering managers who are not intimately aware of their organization’s chiller performance, maintenance and cost data, chillers can appear outlandishly expensive. But in-depth knowledge about an facility’s chiller maintenance and operation can help control chiller expenses and make decisions on chiller replacement easier. As with all equipment, a solid Preventative Maintenance program is essential. If a Chiller is not serviced regularly it's life expectancy can be reduced by as much as half. As they age the expense to operate climbs. Repairs and energy use can be high.

We can repair any issues as needed. A good PM Program will greatly reduce those expenses and extend the life of the equipment.

Boilers - Fix or Replace

As with all building components, boilers have finite service lives. Even with ideal maintenance, they eventually require replacement. While a boiler's age is a major factor in determining whether to repair or replace a unit, it is not the only factor maintenance and engineering managers must consider.

No hard and fast rules exist for making this decision, but managers need to consider several important factors:

Boilers  need  maintenance  at  a  minimum  annually.   If  not  rapid deterioration  could  occur..

Boilers  need  maintenance  at  a  minimum  annually.   If  not  rapid deterioration  could  occur..

Age. As boilers age, maintenance costs gradually rise. Unless something serious goes wrong, replacement costs will always exceed repair costs. But the trend in maintenance costs is a more important factor. If these costs remain relatively constant, then repairing the boiler most likely is the better option. Consistently and rapidly increasing costs point toward replacement, as does difficulty in obtaining replacement parts.

History. Identical boilers operating in similar facilities often have widely different operating histories. Differences in set-up, operating practices, and maintenance often cause these variations. Operators and managers need to review the boiler's history to see if factors exist that suggest replacement is the better option.

Efficiency. New-generation boilers offer major increases in annual operating efficiency compared to boilers that are only 10 years old. Managers should consider the annual savings from replacement when evaluating options.

Configuration. Older systems with central boilers tended to include only one or two large boilers. That set-up often made it necessary to cycle one boiler to match part-load operating conditions. New-generation, centralized systems use several smaller, modular boilers, which allows operators to better match system capacity to facility needs, thus improving operating efficiency. Managers should review the historical building loads to see if a cost benefit exists for replacement with modular boilers.