Installation manual

Uponor Control System - Installation Manual 15
4. Finishing the installation 5. System maintenance
5.1 Controller current limitation
To avoid risk of current overload, the controller uses a
protection system:
At start-up, 14 actuators cannot be open at the same time.
During application, 14 actuators can work at the same time.
The controller opens the maximum actuators according to the
current limitation.
5.2 Actuator's behavior
The normal position of an actuator is closed. The controller
commands only the opening of an actuator.
5.3 Fallback mode
If a thermostat is short-circuited or not detected, the
controller executes the Fallback mode: 7 min open, 14 min
closed to maintain the temperature in the room (heating or
cooling) until the problem is resolved.
If the wire is broken, precedent thermostat will take the
command or else Fallback mode is active.
5.4 Automatic exercise function
The actuators and the pump are designed to avoid seizing,
thereby increasing the reliability of the equipment.
This exercise is done every 6 days +/- 0-24 hours at random:
Exercise pump and actuators.
The pump exercise operates only if the pump has not been
activated since the last exercise. The pump is activated 3
minutes during the exercise.
The actuators exercise operates only if the actuators have not
been activated since the last exercise. The exercise consists
of opening and completely closing the actuator.
• 5 minutes to open an actuator.
• 9 minutes to close an actuator.
5.5 Resetting Installation
To reset the Installation, disconnect and reconnect the
controller to the mains.
Make a complete check up of the installation:
• Verify that the thermostat covers are in place
• Check that the thermostats are working correctly
(turn thermostat dial to obtain a heating demand
and make sure that the actuators are running)
Close the cover of the controller
Close the thermostat covers where necessary
Fill in the "Installation report" on the centre
pages of booklet
Give the manual and all information about the system
to the users
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INSTALLATION_MANUAL_R3-04A.mif Page 15 Mercredi, 14. mars 2007 11:34 11