Building Technologies 74 319 0617 0 a 17.04.2008 22/180
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Installation and commissioning heating controller
Do not throw these instructions away but keep them with the controller!
Installation
Place of installation
• In a dry room, e.g. the boiler room
• Mounting choices:
– In a control panel (on the inner wall or on a top hat rail)
– On a panel
– In the control panel front
– In the sloping front of a control desk
• Permissible ambient temperature: 0...50 °C
Electrical installation
• Local regulations for electrical installations must be complied with
• Only qualified staff may carry out electrical installations
• Cable tension relief must be provided
• The cables from the controller to the actuator and the pump carry mains voltage
• The cables to the sensors should not be run parallel to mains carrying cable (e.g. power sup-
ply for the pump) (insulation class II to EN 60730!)
• If a device is defective or damaged, immediately disconnect it from power and replace it.
Permissible cable lengths
• For all sensors and external contacts:
Copper cable 0.6 mm dia.
Copper cable 1.0 mm
2
Copper cable 1.5 mm
2
max. 20 m
max. 80 m
max. 120 m
• For the room units:
Copper cable 0.25 mm
2
Copper cable 0.5 mm
2
max 25 m
max. 50 m
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