HERZ
BA LE V50 R25 03_2021 GB.docx
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INTENDED USE
Air
heaters are modular units which create process heat in industrial environments.
Their installation and the working process shall only occur after observance of every safety arrangement for the provided
place of installation and application. The accordance with the effective edition of the equipment and operations safety
(GPSG) and the machine standards (MRL) must be guaranteed.
The air production, which is necessary for the application, shall be produced by an appropriate
HERZ
blower.
STANDARD AND SPECIAL EXECUTIONS
1.0. Standard design:
Serien S, M, L, XL und PN10:
1.1. The air heaters are equipped with control electronics for temperature adjustment with built-in potentiometer and
integrated heating element and device protection.
1.2. Externally controllable via a PWM signal (12-24 VDC, 1 Hz)
1.3. Without electronics
2.0. Special version’s
Series S, M, L, XL and PN10:
-
External potentiometer (assembled)
-
Internal PID control with internal TC
-
Internal thermocouple with compensation line
Series S and M:
-
Up to a maximum for recirculation 80°C/176°F inlet air temperature (only devices WITHOUT electronics).
Series L and XL:
-
Up to a maximum for recirculation 100 C/212°F inlet air temperature (only devices WITHOUT electronics).
Series PH:
-
Temperature resistant up to max. 180°C/356°F supply air temperature.
The air heaters of the series XS, PH and HT are available exclusively WITHOUT internal control electronics!
CONNECTION SCHEDULE FOR SPECIAL EXECUTIONS
Control cable for external control series S/M:
- digital signal (PWM) 10-24VDC; 1 Hz
+ = brown
- = white
Control cable for external potentiometer (except Type XS/PH/HT):
Compensation line with internal thermocouple type ‘K':
+ = green
- = white
Note for type L/XL:
After the device protection has responded, this fault is signaled on devices with electronics via a relay contact.. The built-in
relay provides a potential-free changeover contact to the terminals 1-3 (3) mentioned in the wiring diagram. This fault
message can only be switched off again by a "reset", that is, the device must be de-energized
Measures when activating the heating element or tool protection trips:
Disconnect the device from the mains power, after 3 seconds the device restarts automatically. Check air supply (air
pressure, flow and filter), reconnect the device to the mains power.
Special voltages and special services on request. Further custom-made products on request
brown / red
green / blue
white / black