Maintenance Plan - Lennox BAC 030 SNM 3M Installation, Operating And Maintenance Manual

MAINTENANCE PLAN

Rooftops are generally placed on the roof but can also be installed in technical rooms. These units are very robust but a minimum
regular maintenance is required. Some moving parts in the units can suffer from wear and tear and must be checked regularly (belts).
Other parts can get clogged by dirt carried in the air (fi lters) and must be cleaned or replaced.
These units are designed to produce cooled or heated air through the use of a refrigeration vapour compression system, it is therefore
imperative to monitor the refrigeration circuit operating pressures and check the pipe-work for leaks.
The table below, details a possible maintenance plan, including the operations to be carried out and the periodicity at which they must
be accomplished. It is recommended to follow such a plan to keep a rooftop unit in good working order. Regular maintenance of your
rooftop will extend its operating life and reduce operating faults
Symbols and Legend :
X Operation which can be carried out by on-site maintenance technicians.
█ Operation which must be carried out by qualifi ed refrigeration personnel, trained to operate on this type of equipment.
Note:
• Times are given for information purpose only and may vary depending on the unit size and type of installation.
• Coil cleaning must be carried out by qualifi ed personnel using appropriate methods that won't damage the fi ns or the tubes.
• It is recommended to keep a minimum stock of common replacement parts in order to be able to carry out regular maintenance
operations (i.e. fi lters). You can contact your local LENNOX representative which can assist you in establishing a parts list for each
type of equipment.
• The access ports to the refrigeration circuits MUST be leak checked every time gauges are connected to the service ports.
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BALTIC-IOM-0412-E / Service manual