Lennox eNeRGy Series Installation, Operating And Maintenance page 66

MAINTENANCE PLAN
Task
MAINTENANCE PLAN
Clean or replace filters:
Disposable, or metal
frame.
Visual check of the oil
level (applicable for units
equipped with sight glass)
and check the oil for
acidity on the refrigerant
circuits
Clean condensate drains,
indoor coils and outdoor
coils (following local
regulations)
Check condenser fans
Check for the Amps
consumed
Check Smoke detector
Check CLIMATIC™ control,
set-points and variables
Check refrigeration system
for proper functioning
Check clock settings
Check the position and
tightness
of refrigeration
components
eNeRGy-IOM-2020.12-EN
Operating mode
Replace filters with new ones if disposable. Vacuum
clean or blow the dirt. Wash and dry carefully. Replace
filter if necessary by an original Lennox filter.
Blocked filter will reduce the performance of the unit.
THE UNIT SHOULD NEVER BE OPERATED WITHOUT
FILTERS
Visually check the oil level through the sight glass on the
side of the compressor casing
Test the oil every 3 years and after each intervention on
the refrigerant circuit
It's mandatory to clean the external coils, according to
the environment where the unit is located, the
frequency of the cleaning varies from once in a month
to minimum twice in a year.
The performance and the sustainability of the machine
is based on the perfect heat exchange.
The use of a neutral pH cleaning product is mandatory.
(WARNING: Fins and copper tubes are very fragile! Any
damage WILL reduce the performances of the unit).
Check the rotation of the fan ( free rotation, detection
of vibrations or bearing noises)
Check for the Amps consumed on all three phases;
compare it with the nominal value given in the electrical
wiring diagram.
Check the status of the fan blades and its protections.
Check for the Amps consumed on all three phases;
compare with the nominal value given in the electrical
wiring diagram.
Start the unit. Trigger the smoke detector with an
aerosol tester. Reset unit and control.
Refer to the commissioning sheet; Check all set points
are set according to this document.
Retrieve/Check the values of Overheating and
subcooling
Check the time and date of the control
Check systematically all connections and fixings on the
refrigeration circuit. Check for oil traces, eventually a
leak test should be conducted. Check operating
pressures correspond to the ones, indicated on the
commissioning sheet
+
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Monthly Half
Quarterly
Yearly
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