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FIELD SERVICE GUIDE
The problem most frequently encountered in refrigera
-
tion systems is liquid water downstream. Most causes
of water carry-over can be identified and remedied by
using the FIELD SERVICE GUIDE. For further help,
contact Deltech.
DANGER
Refrigeration systems can be dangerous.
Work on the refrigeration system should be
done only by a competent refrigeration me
-
chanic.
Do not release fluorocarbon refrigerants in
-
doors or drain liquid refrigerants into floor
drains. Refrigerant vapors may accumulate
in low places. Inhalation of high concentra
-
tions may be fatal. All refrigerant must be re
-
covered per EPA requirements.
Do not smoke while working on the
refrigeration system or when a refrigerant
leak is suspected. Refrigerant may decom
-
pose in the presence of burning materials,
forming toxic gas or acids which may cause
serious injury and property damage.
Pyramid 8000
®
Series Purifiers (Bulletin 289) 15
SYMPTOM POSSIBLE CAUSE REMEDY
No discharge from automatic
drain valves on coalescing filter.
Accumulation of dirt in automatic
drain valves or failure of auto-
matic drain valves.
Dismantle and clean, repair or replace automatic
drain valves (refer to Bulletin 138).
INLET AIR temperature indicating
light flashes, IAT is outside nor-
mal range or IAT reaches alarm
set point.
Aftercooler malfunction.
Check aftercooler discharge temperature. Reduce
temperature to 120°F max.; reduce airflow if tem-
perature is above 100°F (see Airflow section).
Refrigerant compressor stopped.
(REFRIG SUCTION temperature
light flashes, temperature is out
-
side normal range or alarm set
point is reached.)
1. Fouled condenser.
1. Clean condenser coils (see Maintenance,
Monthly). Push reset button on high/low refrigerant
cutout control.
2. Refrigerant compressor over
-
heated.
2. Ensure adequate ventilation of purifier. Motor
thermostat resets automatically. Turn off purifier,
wait 30 minutes, then restart.
3. Refrigerant compressor
inoperative.
3. Have refrigeration mechanic replace compres
-
sor.
Refrigerant compressor stopped.
(REFRIG DISCHARGE tempera
-
ture light flashes, temperature is
outside normal range or alarm
set point is reached.)
1. Refrigerant compressor
overheated.
1. Ensure adequate ventilation of purifier. Motor
thermostat resets automatically. Turn off purifier,
wait 30 minutes, then restart.
2. Refrigerant compressor
inoperative.
2. Have refrigeration mechanic replace compres
-
sor.