robatherm RM Series - Electric Heater; Commissioning and Safety Features

Commissioning and Maintenance
© robatherm 35
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Electric Heater
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Commissioning
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Caution
Observe general safety instructions on page 3!
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Caution
To avoid burns, do not touch hot surfaces.
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Only use approved parts with ATEX units. All electrical parts must be earthed.
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Safety Temperature Limiter
Each electric heater must be equipped with a fully tested safety temperature limiter with
manual reset. Test function with hot air drier.
Recommendation
Triple thermostat mounted directly downstream from electric heater:
 “Fan” setting: 40 °C.
 “Safety temperature limiter” setting: 70 °C.
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Attention
Electric heaters may only be operated if flow control is present.
Overheating damage may occur to the electric heater, housing and other fitted parts if the
system is run with insufficient cooling (e.g. system switched off at the main switch when the
electric air heater is still on) or in the event of an emergency system shut down triggered by
safety devices.
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Flow Control
The airflow is monitored by measurement of the pressure difference at the fan unit, using an
air pressure gauge Functioning must be checked during commissioning.
Current Consumption
The current consumption is to be checked at all phases by measuring all phases.
For rated data see nameplate.
If the rated values are exceeded, the robatherm Technical Service must be informed.
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