Hydronix Hydro-Control VI Installation Manual page 16

Introduction
Environmental Conditions
3.5
The range of environmental conditions for which the equipment has been designed are:
• Indoor Use Only
• Altitude up to 2000m
• Temperature 0°C to 40°C (32°F to 104°F)
• Maximum relative humidity 80% for temperatures up to 31 °C decreasing linearly to
50% relative humidity at 40 °C
Pollution Degree 3 (Electrical Equipment in industrial or farming areas, untreated rooms
•
and Boiler rooms)
Lightning Strikes
3.6
Consideration should be given to protecting the installation from damage caused by lightning
and similar electrical disturbances.
Many installations will be in situations that are particularly prone to damage by lightning, for
example:
• Tropical Regions.
• Long cable runs between the sensor and the control panel.
• Tall, electrically conductive constructions (e.g. aggregate bins).
Although the Hydro-Control is fitted with Optical Isolation on the sensor input, this will not
prevent damage in all cases. Precautions should still be taken to avoid damage by lightning in
areas where there is a known risk.
It is recommended to install suitable lightning barriers to all conductors in the sensor extension
cable. Ideally, these would be fitted at both ends of this cable to protect the sensor, the Hydro-
Control and any other equipment connected to it.
It is recommended to install the equipment using screened cables to the specification defined
in Chapter 3 section 7.
Cleaning
3.7
The front panel of the Hydro-Control should be cleaned with a soft cloth. Abrasive materials
and liquids must not be used.
16 Hydro-Control VI Installation Guide HD0455 Rev 1.9.0
Chapter 1