Siemens Desigo RXB Technical Manual

33/52Siemens RXB application library (KNX) FNC – Fancoil-Applikationen aus FC-10, FC-11, FC-12 CM110672en_03Building Technologies – Two-pipe fan coil with changeover and outside air damper 30.11.2007Y1GY2YHC.2 3)MYHC.1 3)KNXD3T4)123Q1NLAC 230 V1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18MD1GNDD2Y1GY2CP–CP+B125 26 27 RXB21.1Q13Q14Y3GY4Q24Q3428N1MBB1TD1 2) D2 2)Q23Q242134QAX...R110385A07Y1GY2YM 3)MB2TD4 2)TCE–CE+CE–CE+N.C.19 21NLN21 L19Ref. DescriptionN1 Room controller.R1 Room unitB1 Return air temperature sensor,room temperature sensor.B2 Outside air temperature sensor via KNX bus.D1 Window contact 2).D2 Presence detector 2).D3 Changeover signal via KNX bus.D4 Safety thermostat, outside air.Q1 1- ... 3-speed fan 4).YHC.1 Heating/cooling valve actuator, thermal, 2-point (PDM) control 3).YHC.2 Heating/cooling valve actuator, motorized, 3-position control 3).YM Damper actuator for outside air AC 24 V, 3-position 3).2) Type of operation and allocation to inputs D1 and D2 can be selected. Identical devices must not beconnected to both inputs.3) Do not exceed the max. simultaneous load on outputs Y1 ... Y4: 9.5 VA (see data sheet 3873).4) Do not connect the fans in parallel (or use cut-off relays).A current list of compatible devices is available in the DESIGO RX hardware overview(N3804).Connection diagramList of equipmentNote