Condensate tray and drain trap
Loosen the four bolts -1- and extract away from the
tray -2-.
Remove all dirt and residue accumulated in the
condensate tray.
Check that neither the condensation outlet nor the
drain trap is blocked.
Check that the condensate (water) has been correctly
released to the outside.
Fill the drain trap with water if required (prime it).
Ensure that the four bolts are sealed hermetically -1-.
Outdoor coil
The complete surface of the fins must be kept clean. If they need to be cleaned, use a soft brush or a
vacuum cleaner, taking special care not to damage the fins.
Given that they are exposed to the outdoors, the fins can accumulate a lot of dirt and grime. To clean
the fins more thoroughly, use water with a neutral detergent (e.g. washing-up liquid). Clean from the
inside out and from top to bottom.
Coolant circuit
Before the start of each season when the unit is in use, a thorough check of the coolant circuit must be
made, including operating pressures, controls and temperature rises, etc.
Electrical and mechanical operation
Before the start of each season when the unit is in use, check the consumption (in amps) of all motors,
the condition of the electrical connections and the correct working order of the safety and protection
systems.
The motor bearings for both the indoor and outdoor fans are permanently lubricated and do not need
additional lubricant during maintenance.
If the unit has an economiser, motorised damper, outdoor air intake or barometric
relief damper (accessories):
Check that the air dampers and their drive motors work correctly.
Check the condition of the aluminium mesh filters in the outdoor air inlet protection. Clean or replace
them when necessary.
If the unit has an exhaust fan (accessory):
Check the condition of the fan and the operating control.
Condition of the unit structure and components
Check the correct condition of the unit structure and outdoor components for knocks, dents, scratched
paint or rust. Check that bolts are properly secured and the condition of leak-proof seals and panel locks
and make sure they close properly.
Hot water coil (accessory)
Before the start of each season of operation, check the level of water in the system, that air has been
purged from the coils, and the operation of control components.
Depending on the climate where the unit is installed, the mix of antifreeze and water must be checked.
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Installation manual
1.15 Regular maintenance tasks performed by specialised personnel
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