Maintenance - Lennox WA Series Installation, Operating And Maintenance

MAINTENANCE

7. MAINTENANCE
Warning :
During the life-time of the system, inspection and tests must be carried out in accordance with national
regulations. The information on operating inspections given in annex C of standard EN378-2 can be used if no
similar criteria exist in the national regulations.
The following maintenance instructions form a part of the operations required for this type of equipment.
However, It is not possible to give fixed and precise rules for permanent maintenance procedures capable of keeping
all units in perfect operating condition since too many factors depending on local conditions specific to the installation,
the way the machine is operated, the frequency of operation, climatic conditions, atmospheric pollution, etc. Only
trained experienced personnel can establish strict maintenance procedures adapted to the conditions listed above.
Nonetheless, we recommend a regular maintenance schedule :
- 4 times a year for chillers operating all year long
- 2 times a year for chiller that only operate during the cooling season
All operations must be performed in conformity with the maintenance plan; this will extend the service life of the unit
and reduce the number of serious and costly breakdowns.
It is essential to keep a «service log», for weekly records of operating conditions of the machine. This log will serve
as an excellent diagnostic tool for maintenance personnel ; likewise, the machine operator, by noting down changes
in machine operating conditions, will often be able to anticipate and avoid problems before they actually occur or
worsen.
The manufacturer cannot be held responsible for any malfunctioning of any equipment it provides if it is caused by a
lack of maintenance or by operating conditions beyond those recommended in this manual.
Shown below, and as an illustration only, are some of the most common rules applied for maintenance.
Installation - Operation - Maintenance manual (IOM) • AIR COOLED CHILLERS & SPLIT UNITS - 1106-E
size 952 / 1003 / 1053 / 1153
Size 1254 / 1354 / 1404 / 1504
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