Maintanance; Anti-Freeze Protection - Jaga BRIZA 22 HYBRID Instructions D'installation

MAINTENANCE
DANGER !
- maintenance must only be carried out by qualified technicians, qualified to work on air-
conditioning and refrigeration systems. Use suitable work gloves
- do not insert sharp objects through the air flow or intake grilles
DANGER !
Always use the mains switch to isolate the unit from the mains before carrying out any mainte-
nance work on the unit, even if it is for inspection purposes only. Make sure that no one supplies
power to the unit accidentally; lock the master switch in zero position.
The unit has sharp edges; use gloves during maintenance!
Routine maintenance
Monthly: Checking the air filters.
The air filters are made of fibre, which can be washed with water. The level of pollution of the
filters must be checked at the beginning of the season when the unit will be used and generally
every month. Only an authorized installer may replace the filter.
For replacing the airfilter: see page 18.
Every 6 months: Check the condition of the exchanger and condensate drain.
If necessary:
- remove any debris from the finned surface to clear the air passage
- remove the dust using compressed air
- gently wash with water and brush gently
- dry using compressed air
- keep the condensate drain free from any obstructions that may prevent normal water flow
Checking whether there is air in the water system.
1. start the system for a few minutes.
2. stop the system.
3. loosen the vent screw on the inlet collector and bleed it.
4. repeat the operation serveral times until air is no longer released for the system.
End of season: Draining the water system (for all exchangers)
It is advisable to drain the water from the system at the end of the season in order to prevent
breakage due to freezing.
Electrical circuit
The following operations are recommended to perform mainenance on the electrical circuit:
- check the unit power consumption using a clip-on meter and compare the reading with the
values shown in the documentation;
- inspect and check that the electrical contacts and relative terminals are tightened correctly.

Anti-freeze protection

IMPORTANT !
Mixing the water with glycol modifies the performance of the unit. Pay attention to the safety
instructions on the package regarding glycol.
If the unit is not used during the winter period, the water contained in the system may freeze. All
the water in the circuit must be drained on time. If draining the system is to complex, a suitable
amount of antifreeze liquid can be mixed with the water.
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BRIZA 22 HYBRID BUILT-IN installation instructions 85
EN