Demir Dokum HK 50 M Service Bulletin
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Contents
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HK 50 M – HK 10M – HK 100S SERVICE BULLETIN7.10 OUTDOOR AIR SENSOR CONNECTIONThe outdoor air sensor is the basic part that automatically regulates the heating. Thefollowing steps should be followed for installation:- The outdoor air sensor protection cover is removed and the connection terminals andscrew nuts are accessed. (5x25mm dowel connection- The connection points are drilledaccording to the template.)- Connection cable with 0.5~1 mm2 cross section is connected to the terminals on thesensor housing. Terminals 7 and 8 are connected on the electronic board by exiting from the holein the body (see Appendix G).- The protective cover is closed.Points to note about the sensor are:- The environment heated should be installed on the wall facing 2/3 of the north ornorthwest should be mounted so as not to see direct sunlight.- The sensor should contact the wall directly. The wall must have a smooth surface.- The maximum cable length between the sensor and the electronic board in the controlpanel must be 50m. If it is more than 50 m, correction must be made with parameter 37 for correct measurement.- No addition is recommended in the wiring between the sensor and the card. If any additionis made, it should be well-insulated.- Contact should be avoided between the conductive leads used for the connection cableused between the sensor and the card and the power cable.- If outdoor air sensor is not to be installed, Parameters 14 and 22 should be set to 0.- The cable must be wired separately from the 230 Vac power cable to avoid anyinterference.Service Administration 100 03/2010 |
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