EXHeat HEF 100, Installation, Operation, & Maintenance Instruction, Page: 4 / 27

2. Description of Equipment
Page 4
2. Description of Equipment
The EXHEAT Industrial Ltd HEF type increased safety anti-condensation heater is designed
for anti-condensation or frost protection within control panels, cabinets and small enclosures
in conjunction with a hazardous area thermostat or, on its own as a self-regulating heater.
Enclosure
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Formed 316 perforated stainless steel.
Connections
•
The connection of this heater is made via the supplied 3-core up to 1.5mm² supply
cable (16AWG). The standard cable is 1.0mtr long (longer available at request) and
it is the responsibility of the installer/end user to connect to suitable connectors/joint.
Refer to Section 7.
•
The internal earth connection is made via the supply cable (internal earth strapped to
the enclosure within the heater) the heater internals are sealed and non-accessible.
The external earth derives from the fixing points either on a DIN rail or onto metallic
base.
Controls
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The nature of the self-regulating cable within the HEF affords it to be a stabilised
design type of heater, therefore there are no additional controls required.
•
Should overall control of the temperature be required an EXHEAT Industrial Ltd
certified thermostat may be used, such as the AFT, HFT (standalone thermostats) or
the FXT range can be used for in-line variation.
Mounting
•
Up to 4 off 6.2mm (Clearance) diameter mounting holes are provided with pressed
feet. This product may be mounted in any orientation, please refer to the general
arrangement drawing for dimensions of the fixing holes. Alternatively, there are
central holes for DIN rail mounting (4.5mm).
Voltage
•
The HEF range can be either 120V nominal or 230V nominal with a range between
110V to 277V, 50 or 60 Hz. Subject to Sales Approval.
CAUTION – Check that the voltage and current of the heater is compatible with the
ratings of the supply or in line thermostat before energising.