Quincy Compressor QED 650 Instruction And Maintenance Manual page 92

Instruction book
Condition
- Condensate drain remains
inoperative
- Condensate trap continuously
discharges air and water
- Evaporator pressure is too high
or too low at unload
2920 1818 00
Fault
Motor overload protection of
refrigerant compressor motor
has tripped
High-pressure switch tripped
Automatic drain system
clogged
Automatic drain system out of
order
Hot-gas by-pass valve
incorrectly set or out of order
Condenser pressure too high
or too low
Shortage of refrigerant
Remedy
Have motor checked
For resetting: see the section
Electrical system
See above
Flush the assembly by opening
manual drain valve.
Have system inspected
Have system checked. If necessary
replace automatic drain
Have hot-gas by-pass valve adjusted
See above
Have circuit checked for leaks and
recharged
91