16
Preventive Maintenance
The operating life of the DAFC uid cooler can be extended by following a simple preven-
tive maintenance schedule. This schedule will reduce the possibility of failure of compo-
nents and unnecessary malfunction of the system. Although the service technicians must
be thoroughly familiar with the special design features of this equipment before attempting
any service or repair, an inexperienced technician can perform certain simple maintenance
functions to assure normal, trouble-free operation.
Maintenance Functions
Monthly
Check heat exchanger for obstruction to the inlet air side of coil.
Bleed air from glycol system.
Seasonally
Check electrical components for loose wire connections.
Check contactor contacts for pitting.
Check glycol solution level in the system.
Check fan motor(s)
Bi-Annually
Check the glycol solution inhibitors. Inhibitor level prevents corrosion and
glycol concentration prevents freezing. Flush as necessary.
Clean the coil.
Annually
Check the glycol system for leaks and corrosion.
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