4 - HUBER

Electric
Current
Thermal
fluids
3. Commissioning
3.1. Safety Instructions and Principles
Caution in the case of permanent installations! Potential risk of
injury and material damage:Only appropriately trained and qualified
electricians are permitted to connect three-phase equipment to the
power supply.
Please keep to the specifications of the actual version of EN
61010-ff, if you integrate the thermostat (i.e. without plug) into
your electrical installation.
Hard-wired units and Polyphase-Units have to have a switch or a
circuit breaker as separation device.
It is your obligation:
- to install a fuse-protected switch or circuit breaker according to
the data sheet in the installation of your building.
- to place this near to the unit so that it is easily reached by the
user.
- to precisely mark this switch as separation device for this unit.
Units that are connected to the electricity via plug:
The cable must not be longer than 3 m (VDE 0411, part 100).
The connection of the three-phase unit to the electricity or the
change of voltage of the unit must only be carried out by a
competent electrician.
Check that the rating of the fuse protection, the power capacities
and voltages all comply with the requirements on the nameplate
and the technical data sheet.
Caution! Potential risk of injury and material damage:
Please refer to the Data Sheet (appendix) for information on the
safety classification of your thermostat (FL/NFL).
Requirements for thermal fluids classified as NFL:
Only non-flammable thermal fluids are permissible for unattended
operation!
Requirements for thermal fluids classified as FL:
EN 61010-1: Maximum permissible working temperature 25 °C
below the flash point!
Maximum viscosity at the lowest working temperature: 50 mm 2 /s.
Maximum density of the thermal fluid: 1 kg/dm³.
Possible thermoregulation range within the range of the planned
minimum and maximum working temperature.
Do not use thermal fluids with any of the additives ether, ester or
amine. Do not use demineralized water, mineral water, sea water
or CaCl 2 brines!
Compatibility with the materials of the thermostat (stainless steel
1.4301 (V2A) and Viton) and all materials of the connected
application.
Please Note:
All the safety instructions are vital and must be considered during
the operation of the unit in compliance with the operating instructions.
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