DBK HR User Instructions

User Instructions for PTC Finned Resistor Heater HR / HRI / HRKK
Product Description
Self-regulating PTC finned resistor heaters, based on PTC technology, to heat up air streams.
Operating voltage acc. to marking:
Ambient Temperature:
Humidity:
Installation
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Installation by trained and qualified personnel only.
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When connecting to a power supply, please make sure that the voltage corresponds to the electrical
information on the heater. The installation must comply with relevant local regulations, technical directions
and recognised standards.
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All metal parts of the heater are live parts – don't touch when connected to power. The necessary protection
class, resp. clearance and creepage distances / minimum distances must be met and ensured by an
appropriate installation.
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Touch protection towards the heater must be ensured by the way of installation.
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Heater can be installed by using a mounting frame or the plastic end caps of the element.
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The heater shall not be installed close to flammable materials.
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The heater should be protected with a slow-blow fuse to avoid an accidental tripping of the fuse at cold start
of the heater.
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When the heater is used in a dusty environment, an air filter should be installed in front of the heater to
avoid a deposit of fluff or dust in the aluminium fins of the element.
Operation
Electrical connection via 6,3 mm spade terminals.
Connection diagrams of the different heater types, see page 2 and 3.
Maintenance
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Before cleaning or maintaining the heater, it must be fully disconnected from the net (with min. 3 mm
distance from the heater terminals to the connecting contacts).
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The heater shall only be maintained and cleaned from qualified personnel.
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The heater must be regularly tested on proper function.
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A regular visual control with regard to contamination, foreign particles, loose parts or damage of the heater
shall be carried out by a technically qualified person.
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The maintenance interval depends on the operating conditions but should not exceed 6 months.
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Liquids or sharp articles shall never be used for cleaning purposes. Cleaning shall only be done with a brush
and/or vacuum cleaner.
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There are no user-serviceable parts inside the heater. Disassembling the heater should not be attempted.
Warning
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Never perform any works on the heater while it is energized.
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All metal parts of the heater are live parts – don't touch when connected to power.
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The heater will remain hot several minutes after switch off.
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An operation with insufficient airflow leads to an impairment of the function and lifetime.
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The finned heaters shall only be used to heat up an air stream.
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An operation in a humid and/or aggressive environment is inadmissible.
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Applied heater identification shall not be removed or changed.
Issue: 07/2010
220 – 240 V
100 – 120 V
230 – 400 V
Special Voltages (12 V ; 24 V ; 48 V ; 72 V)
- 25° C to + 65 ° C
85 % rH
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