Equator 375 - Manual (Page 6)

D is turbance Caus e Trouble -Shooting R e me dy
O il present in system
after horizontal
transport. Q uestion user about mode
of transportation and time
interval between
installation and start-up. Let unit stand for several
hours at warm
temperature and try to
start again. If compressor
does not start, open the
system and blow through
with N 2.
Locked rotor (fault in
compressor). C heck that compressor
hums and picks up total
starting current. O pen
system and blow N 2
through system. If system (filter) is not
blocked, replace
compressor.
Ambient temperature
very low. O il in
compressor too cold,
possibly in connection
with undervoltage. Measure ambient
temperature. Measure
voltage. Find a better location for
unit. C ondenser can be
insulated if necessary, but
DO N ’T FO RGET to
remove again if ambient
temperature increases.
C ompressor tries to
start but does not
always succeed on
first attempt. C an be normal.
Ventilation is perhaps
insufficient. Measure the temperature
of compressor housing
(max. 110°C ) and filter
(max. 70°C ). Find a better location for
the unit.arrange ways for
a better ventistat.
Refrigerate and/or
freeze normally.
C ompressor tries to
start but does not
succeed on first
attempt. Standstill time for
compressor is too
short. C heck for snug fit of
doors. Time standstill
period for compressor. If standstill time is too
short, replace thermostat.
C ompressor runs
continuously. Unit
refrigerates/freezes
normally or too much. Thermostat phial is
incorrectly installed. C heck location of phial. C orrect the fault. C utout
temperature can be raised
by giving the phial a
greater surface contact
with the evaporator.
Ice formation around
thermostat phial. C heck for snug fit of
doors Inform user to defrost
unit.
Thermostat set too
low. Turn thermostat knob
counter-clockwise. If compressor stops,
inform user about function
of thermostat.
To be continued on
the next page.
Ice formation in phial
tube. Defrost unit. Remove
thermostat phial, dry
thoroughly and replace.
Repeat until the phial is
dry. Seal with putty.
4.