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Siemens Building Technologies Basic Documentation RVA63.242, RVA53.242 CE1P2373E
Landis & Staefa Division Handling 26.03.2001
2 Handling
2.1 Installation
2.1.1 Regulations for installation
• Air circulation around the controller must be ensured, allowing the unit to emit the
heat produced by it.
A clearance of at least 10 mm must be provided for the controller's cooling slots
which are situated a the top and bottom of the housing.
The space should not be accessible and no objects should be placed there.
If the controller is enclosed in another closed (insulating) casing, a clearance up to
100 mm must be observed on all sides
• The controller is designed conforming to the directives for safety class II mounted in
compliance with these regulations
• Power to the controller may be supplied only after it is completely fitted in the cut-out.
If this is not observed, there is a risk of electric shock hazard near the terminals and
through the cooling slots
• The controller may not be exposed to dripping water
• Permissible ambient temperature when mounted and when ready to
operate: 0...50 °C
2.1.2 Mounting location
• In the boiler front
• In the control panel front
2.1.3 Mounting procedure
• Turn off power supply
• Pull the prefabricated cables through
the cut-out
• Plug the connectors into the
respective sockets at the rear of the
controller
è Note:
The connectors are coded to make
certain they cannot be mixed up.
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