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to service, check the valve for air or condensate leaks;
tighten connections as required to correct leaks. Check the
drain cycle; adjust the timer according to the procedure in
the section.
Glycol Level
To add glycol to the tank, a mixture of three (3) parts water
to one (1) part propylene glycol should be added to bring
the level up to approximately 2 inches above the heat ex-
changer coils. DO NOT USE ETHYLENE GLYCOL.
FIELD SERVICE GUIDE
Problems most frequently encountered with refrigerated dry-
ers are water downstream of the dryer and excessive pres-
sure drop. Most causes can be identified and remedied by
following this guide.
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Closed refrigeration systems are potentially dan-
gerous. Work on the refrigeration system must be
done only by a competent refrigeration mechanic.
Do not release fluorocarbon refrigerants indoors;
do not discharge liquid refrigerants into floor
drains. Refrigerant vapors may accumulate in low
places. Inhalation of high concentrations may be
fatal.
Do not smoke while working on the refrigeration
system or when a refrigerant leak is suspected.
Burning materials may decompose refrigerants,
forming toxic gas or acids that may cause serious
injury and property damage.
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