20121213
58
GB
Maintenance
7.2.4
Measuring the flame signal
The burner is fitted with a sensor to check that a flame is present.
The minimum current for control box operation is 70 µA. The op-
erator Panel displays “30%” (see List of parameters, parameter
954).
The burner provides a much higher current, so controls are not
normally required.
If, however, you want to measure the current of the flame sensor,
follow the instructions as described in “Maintenance pro-
gramme” on page 56.
7.2.5
Rpm sensor adjustment
The rpm sensor E)(Fig. 57) is located inside the fan motor cap A)
and measures the motor rpm via the reader plate B) fixed firmly
to the motor.
The rpm sensor leaves the factory already calibrated. In case of
maintenance or replacement, proceed as follows:
➤
loosen the 4 screws C);
➤
with the aid of a flat-head screwdriver, move the plate D)
radially;
➤
with adjustment completed, tighten the screws C).
7.2.6
Inverter replacement/maintenance
In the event of inverter replacement or maintenance, unscrew the
four screws 1) (Fig. 58) and proceed with the disassembly se-
quence illustrated opposite.
WARNING
WARNING
The dimension indicated in Fig. 57 must be re-
spected.
WARNING
WARNING
Make sure that the mechanical locking systems
on the various adjustment devices are fully tight-
ened.
S8171
P
V
h
min s
%
Fig. 56
Fig. 57
20078649
Fig. 58
S9517
1
Summary of Contents for RLS 120/EVi MX FS1
Page 2: ...Translation of the original instructions ...
Page 83: ......
