User manual HONEYWELL AF20 DATASHEET

[. . . ] OUTDOOR TEMPERATURE SENSOR AF20 / DAF20 PRODUCT DATA APPLICATION Outdoor temperature sensor to detect outside temperature for weather-related supply air temperature control. FEATURES · Sun blinds to protect against radiant heat · Switch for two separate control devices or heating groups with DAF 20 TYPES · AF 20, consisting of one sensor element · DAF 20, same as AF 20, but consisting of two separate sensor elements DIMENSIONS SPECIFICATIONS Sensor element Resistance Operating range Dimensions (H x W x D) Housing Mounting Electrical connection AF 20 DAF 20 Protection class NTC thermistor 20 Kohm at 25 °C -30. . . +60 °C 95 x 65 x 70 mm Plastic (ABS) Wall mounting Electrical terminals for 2 x 1. 5 mm² cable Electrical terminals for 4 x 1. 5 mm² cable IP 30, DIN 40 050 or IEC 144 For technical information on the NTC thermistor, see "Temperature Sensors" (EN0B-0476GE51). [. . . ] This can also be the south side of the house. The outdoor temperature sensor's protective housing prevents the sun's rays from affecting the sensor. If the sensor has been mounted on the south side of a house with large windows facing in this direction, it is recommended that you remove the sun guard. Do not mount the outdoor temperature sensor in a protected area, such as a wall niche or under the balcony. It should be put on an open façade so that it can detect all weather conditions. Avoid mounting the sensor above doors and windows since warm air movements may otherwise influence the measurement results. The temperature sensor should be mounted about 2/3 the way up the wall on buildings of not more that 3 stories; on taller buildings, between the second and third stories. ELECTRICAL CONNECTION The wiring of the outdoor temperature sensor AF 20 has to be in accordance with the overall wiring circuit diagram. The terminals are not polarized so in the event of the wires connected in reverse, no malfunction will occur. Fig. [. . . ] Mounting Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Ecublens, Route du Bois 37, Switzerland by its Authorized Representative: Automation and Control Solutions Honeywell GmbH Böblinger Strasse 17 71101 Schönaich / Germany Phone: (49) 7031 63701 Fax: (49) 7031 637493 http://ecc. emea. honeywell. com Subject to change without notice. [. . . ]