HEYLO DE 20 SH-U Betriebsanleitung Seite 58

Electric heater DE 20 SH-U
15.3.3 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 devices must be freely acces-
sible at all times.
Familiarize yourself with all the safety devices; this way personal injury and/or damage to property can be pre-
vented or minimized.
The following diagram shows the safety devices on the device.
Fig. 15:
Safety devices on the electric heater
1 Locked switch-box
3 Anti-tamper protection for the air inlet nozzle
(bypass)
5 Lockable castors for stability
7 Anti-tamper protection for the return line noz-
zle DN 300
The device has the following additional safety devices:
– Safety temperature limiter (STL)
– Emergency stop switch on the switch-box
– Control-circuit fuse
Signalling devices
The control panel features indicator lights that show the status of the device.
– Yellow indicator lamp: Device is in operation, heating is activated
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2 Anti-tamper protection for the fan motor cool-
ing
4 Heat-insulated protective cover
6 Protective hoop
8 Anti-tamper protection for the supply line noz-
zle DN 300
EN