8.0
SCHEDULED MAINTENANCE
8.1 INTRODUCTION
ZEKS HeatSink™ refrigerated air dryers require little maintenance. These dryers
utilize hermetically sealed compressors which do not require any lubrication. Fan
motors require lubrication at both oil ports every six months. ZEKS recommends
component inspection and service at regular intervals to obtain maximum performance
from your dryer.
8.2 REFRIGERATION CONDENSER
ZEKS dryers can be equipped with an optional ambient air filter that is designed to
protect the condenser from the accumulation of dirt and debris. For proper operation,
it is imperative that this filter be inspected and cleaned on a regular basis. For
applications where excessive dirt, dust or debris is encountered, frequent inspection
and cleaning may be required. Annual replacement of the filter is recommended.
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8.3 CONDENSATE DISCHARGE SYSTEM
On a minimum of a monthly basis, operation of the automatic drain should be
checked. The drain should be removed and cleaned as well to ensure no debris
from the system is trapped inside the strainer. Figure 4 illustrates the drain assembly.
To clean the drain, turn the Isolation Valve to the off position. Be sure the valve is
depressurized. Carefully remove the Strainer End Cap and remove the Strainer.
Clean the Strainer and remove any debris that is evident in the valve. Replace the
Strainer and reinstall the Strainer End Cap. Carefully open the isolation valve and
inspect the Strainer End Cap for leaks. Tighten as required.
If your dryer is installed without a drain isolation valve (filter stop), failure to
depressurize the dryer may result in serious injury. Do not remove the drain valve
without depressurizing the unit.
WARNING
