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ENGLISH
1 1 . 7 M a i n t e n a n c e / r e p l a c e m e n t o f t h e e l e c t r i c a l h e a t e r
Safety Thermostats
Automatic reset
thermostat
Manual reset
thermostat
Before the heating season, remove the dust from the resistances with compressed air or using a vacuum
cleaner and a soft brush. Visually check the condition of the components and tighten the connections if
necessary.
•
Switch off the electrical supply at the main circuit breaker.
•
Open the access doors.
•
Visually check the condition of the components and tighten the connections.
•
Disconnect the cables before removing the unit.
Be careful not to tear or damage the cables by pulling on the unit.
•
Terminal connection details § "6.2 AHU power connection with electrical heater", page 24.
1 1 . 8 M a i n t e n a n c e / r e p l a c e m e n t o f t h e w a t e r c o i l .
To maintain the characteristics of the unit, drain the water circuit once a year.
As a result of the ambient pollution, and despite the filtration, dust can be deposited on the unit.
After disassembly, the unit can be cleaned with a jet of water, steam or compressed air, but proceed with
care so as not to damage the unit fins.
For units equipped with reversible coils (ER), clean the condensate drain tray with water and a non-abra
-
sive detergent. Ensure the proper drainage and inspect the siphon.
