HEYLO K 120 Betriebsanleitung Seite 58

Oil heater K 120 (R) / K 160 (R)
15.3.2 Fan
Depending on the type of unit, the fan is either
radial or axial. The fan sucks in the ambient air.
This flows past the heat exchanger element and is
delivered to the blow-out nozzle.
Devices with radial fans achieve a higher dis-
charge pressure. Long and branched hot air hoses
can therefore be connected to these devices.
For 400 V units, the correct direction of rotation of
the fan must be observed when connecting the
device. The device must therefore be tested by
switching it on briefly.
NOTICE! If the direction of rotation is incorrect,
the fault signal lamp of the fan lights up.
See also
 Assembly and connection
15.3.3 Controls
The HEYtronic controller regulates the tempera-
tures in the device.
After plugging in the mains plug, the controller
displays the current blow-out temperature. In ad-
dition, the AL display flashes until the temperature
at the outlet side has reached over 40 °C. If the
temperature now falls below 30 °C after the fan
has started, this process is repeated. At 40 °C
and above, only the blow-out temperature is dis-
played.
The controller switches off the burner as soon as
the temperature at the outlet side exceeds 85 °C.
This may be the case if the connected warm air
hoses are badly laid and represent a too high air
resistance.
As soon as the blow-out temperature has cooled
below 85 °C again, the burner starts automatical-
ly.
The status lights indicate the control of the burner
and fan.
The control elements of the HEYtronic control are
without function and only for setting the switching
56 / 85
[ 60]
values.
Programming may only be changed by service
technicians. If you need further information,
please contact the HEYLO Service department.
15.3.4 Safety devices
Persons can be seriously injured on the device if
the safety devices are not properly installed and
set. Do not modify, dismantle or take any of the
safety devices out of operation. All the safety de-
vices must be freely accessible at all times.
Familiarize yourself with all the safety devices;
this way personal injury and/or damage to proper-
ty can be prevented or minimized.
The following illustration shows the safety devices
on the device.
Fig. 19:
Safety devices
1 Terminal box for
burner
3 Burner interference
suppression button
5 Intervention protec-
tion
7 Safety temperature
2 Oil shut-off valve
4 Photocell for flame
monitoring
6 Heat-insulated hou-
sing
EN