Cleaning, Maintenance; Fault Rectification - Maico Centro-M Installation And Operating Instructions Manual

11 Cleaning, maintenance

switch. Demand-based ventilation after start delay
of approx. 1 minute. Overrun time after switching
off, approx. 3 minutes.
Control of the volumetric air flows within the vent-
ilation system with Centro pressure controller.
Speed control of the central fan automatically.
Centro-H
Exhaust air element with servomotor and humidity
control. For use in systems with variable volumet-
ric flow for individual apartments. Standard opera-
tion – basic ventilation, automatic switchover to
full load if required (switch-on/switch-off point ad-
justable). Demand-based ventilation can also be
switched on by light switch.
Control of the air volume flows within the ventila-
tion system by pressure or speed control of the
central fan.
Once the exhaust air element has been installed,
the unit regulates to the current room humidity
(relative humidity). This humidity value is saved
as the first reference value. The reference value
does not have to be specified manually. If the
room humidity rises by 7 % within 2 minutes, the
exhaust air element switches to full load operation
(demand-based ventilation). If the relative humid-
ity falls below the reference value during opera-
tion, the newly established reference value is
saved. The exhaust air element then automatic-
ally switches back to base load operation or to
Off. Demand-based ventilation automatically or
via a switch (e.g. light switch). After manual
switch-on (light switch) the exhaust air element
runs with a start delay of approx. 1 minute with
demand-based ventilation (full load). After manual
switch-off, the exhaust air element continues to
run in nominal load operation with an overrun
time of 15 minutes (valve closing time approx. 2 -
3 minutes).
When switch is open, the exhaust air ele-
ment can start up automatically as a result of
high room humidity.
11 Cleaning, maintenance
The unit is practically maintenance-free. The air
filter must be replaced every 3 to 6 months, de-
pending on the degree of soiling.
Replacement filter mats ZF 60/100 5-pack,
filter class G2 according to EN 779, art. no.
0093.0331 + filter change indicator (time strip)
For filter change and cleaning → ER UP/Centro
main instructions.
8

12 Fault rectification

Fault finding and repairs only permissible
when carried out by qualified electricians.
DANGER Danger to life from electric
shock.
Prior to accessing the connection terminals,
switch off all supply circuits. Switch off mains
fuse, secure against being accidentally switched
back on and position a visible warning sign.