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Table Of Contents

RXB applications library (KNX)

RXB – Fan coil applications

from FC-10, FC-11, FC-12, FC-13

(See separate document CM110385 for the RXB description of functions).

For RXB...

Application Page

21.1 21.1 22.1 39.1

FNC02 Two-pipe fan coil with changeover 3 X X

FNC03 Two-pipe fan coil with changeover and electric reheater 9 X X

FNC04 Four-pipe fan coil 15

X X

FNC05 Four-pipe fan coil with electric reheater 21 X

FNC08 Four-pipe fan coil with room supply air cascade 27 X X

FNC10 Two-pipe fan coil with changeover and outside air damper 33 X

FNC12 Four-pipe fan coil with outside air damper 39

FNC18 Two-pipe fan coil (changeover) and radiator 45 X

FNC20 Four-pipe fan coil controlled by damper 51 X

Application package

FC-10

FC-11

FC-12

FC-13

Summary of content (54 pages)

PAGE 1
RXB applications library (KNX) RXB – Fan coil applications from FC-10, FC-11, FC-12, FC-13 (See separate document CM110385 for the RXB description of functions). For RXB... Page 21.1 21.1 22.
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/54 Siemens Building Technologies RXB application library (KNX) RXB – Fan coil applications from FC-10, FC-11, FC-12, FC-13 CM110672en_05 2013-06-07
PAGE 3
FNC02 Two-pipe fan coil with changeover Heating only (with LTHW), cooling only (with CHW) or changeover. Changeover via KNX bus. Modulating control of heating/cooling valve. Automatic or manual fan control. 10385S10 • • • • Plant diagram D3 YHC Q1 T Room controller. Room unit with temp. sensor. B1 Return air sensor. D1 Window switch. D2 Presence detector. D3 Changeover signal via KNX bus. Q1 Fan (1...3 speeds). YHC Heating/cooling valve. B1 N1 R1 T KNX Change-over H 100 Q34 Fan speed 3.
PAGE 4
DC 0...10 V fan Fan in sequence Fan YC... XPFanH OfsFanH Valve OfsFanC XPFanC 100% SmaxC SmaxH YC... Output signal (fan / valve) TR Room temperature Sp Effective setpoint (H/C) SminH 0% 4% 0% SpHCmf SminC TR SpCCmf 0% / 4% Hysteresis for fan start Fan in parallel with min. speed Smin Min. fan speed (H/C) OfsFan Offset for fan start XpFan P-band for fan operation FanStartDmd Fan YC... Smax Max.
PAGE 5
YHC.2 Connection diagrams 3) B1 2) D1 D2 2) G Y2 Y1 M YHC.1 KNX 3) R1 T T 3 3 2 10385A01 4 RXB21.1 25 26 27 28 1 CE– Y2 N1 17 18 CE+ G Y4 Y1 CP– D2 Q34 GND L G N.C. D1 L 19 19 21 21 D3 10 11 12 13 14 15 16 Q24 9 Y3 8 Q14 7 Q13 6 CE– M 5 1 B1 N 4 CE+ 3 CP+ 2 2 B M 1 N QAX... Q1 4) AC 230 V N L KNX 2) D2 2) D3 YHC.3 Q2 L D1 N B1 T T AC 230 V N Y RXB39.
PAGE 6
Note Configuration A current list of compatible devices is available in the Desigo RX hardware overview (N3804). The following parameters are available with application FNC02. They are set via ETS, ACS, or HandyTool. Menu Parameters.
PAGE 7
Menu Fan control Parameters. All Minimum on time Temperature sensor B1 Periodic fan kick Comfort FC-13: also Precomfort Periodic fan kick Economy Measured value correction Setpoint offset range Local Comfort mode Room unit With LCD Display heating/cooling symbols Temperature unit Standard display Room unit DC 0...10 V General functions Central functions Master/slave Values/Range 1...10 min – Room – Return air – Measured value only – No sensor 0...90 min (90min = Off) 0...
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/54 Siemens Building Technologies RXB application library (KNX) RXB – Fan coil applications from FC-10, FC-11, FC-12, FC-13 1BFNC02 – Two-pipe fan coil with changeover CM110672en_05 2013-06-07
PAGE 9
FNC03 Two-pipe fan coil with changeover and electric reheater Heating only (with LTHW), cooling only (with CHW) or changeover. Changeover signal via KNX bus. Modulating control of heating/cooling valve. Automatic or manual fan control. 10385S11 • • • • Plant diagram YR D3 D4 YHC N1 R1 B1 D1 D2 D3 D4 Q1 YHC YR Q1 Room controller. Room unit with temp. sensor. Return air sensor. Window switch. Presence detector. Safety thermostat, electric heating coil. Changeover signal via KNX bus. Fan (1...
PAGE 10
Change-over 1-2-3 speed fan 10385D34 Y Y TR SpH SpC H C Q14 Q24 Q34 Output signal. Room temperature. Effective heating setpoint. Effective cooling setpoint. Heating sequence. Cooling sequence. Fan speed 1. Fan speed 2. C H Q34 Q24 Q14 Fan speed 3. SpH DC 0...10 V fan TR [°C] SpC Fan in sequence Fan YC... XPFanH OfsFanH Valve OfsFanC XPFanC 100% SmaxC SmaxH YC...
PAGE 11
Functions Application FNC03 includes the following functions (refer to the description of functions CM110385 for detailed information): Function Brief description) Two-pipe fan coil.. – PI control. – Proportional control sequence, selectable: Only heating sequence, only cooling sequence or changeover. – Control of thermal / electromechanic / motorized / analog valve actuators. – Control of motorized KNX bus actuator valves. – Valve exercising feature.
PAGE 12
N L YR AC 230 V RXB39.1 10672A12 CE – CE + G0 YC3 CE – CE + N1 3 4 G0 G CP – YC1 17 18 29 30 31 32 QAX... D5 Y 0 Y G0 Y D4 N.C. 10 11 12 13 14 15 16 Q34 GND N.C. 9 Q33 D2 D3 GND 8 23 24 25 26 27 F1 L 7 Q14 D1 19 19 21 21 6 Q13 5 L M B2 L 4 0 M B M B1 3 N 2 Q2 T T N 1 YHC.3 YR.1 YC2 T N D4 CP + D3 1 2) D2 G 2) 2 D1 B1 L KNX R1 N List of equipment Ref. N1 R1 B1 D1 D2 D3 D3 / D4 D4 / D5 Q1 Q2 YR YR.1 F1 YHC.1 YHC.2 YHC.
PAGE 13
Configuration The parameters below are available with application FNC03. They are set via ETS, ACS, or HandyTool. Menu Parameters.
PAGE 14
Menu Fan control Parameters. All Minimum on time. Temperature sensor B1 Periodic fan kick Comfort FC-13: also Precomfort Periodic fan kick Economy Fan overrun time Measured value correction Setpoint offset range Local Comfort mode Room unit With LCD Display heating/cooling symbols Temperature unit Standard display Room unit DC 0...10 V General functions. Central functions Master/slave Values/Range 1...10 min – Room – Return air – Measured value only – No sensor 0...90 min (90min = Off) 0...
PAGE 15
FNC04 Four-pipe fan coil Heating with LTHW and cooling with CHW. Modulating control of heating and cooling valve. Automatic or manual fan control. 10385S12 • • • Plant diagram YC YH Q1 T B1 D1 D2 Q1 YH YC Room controller. Room unit with temp. sensor. Return air sensor. Window switch. Presence detector. Fan (1… 3-speed). Heating valve. Cooling valve. B1 T D2 R Y [%] Operating diagrams Valves H 100 C YH YC SpH SpC 0 1-2-3 speed fan Q34 D1 N1 KNX TR [°C] Y Output signal.
PAGE 16
DC 0...10 V fan Fan in sequence Fan YC... XPFanH OfsFanH Valve OfsFanC XPFanC 100% SmaxC SmaxH YC... Output signal (fan / valve) TR Room temperature Sp Effective setpoint (H/C) SminH 0% 4% 0% SpHCmf SminC TR SpCCmf 0% / 4% Hysteresis for fan start Fan in parallel with min. speed Smin Min. fan speed (H/C) OfsFan Offset for fan start Valve 100% XpFan P-band for fan operation FanStartDmd Fan YC... Smax Max.
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2) 2) D2 3) YH.1 YC.1 Y1 Y2 G Y1 D1 B1 3) YC.2 M M G YH.2 3) YC.3 M M 3) Y2 YH.3 3) Connection diagrams 3) KNX R1 3 3 2 10385A03_01 CE+ CE– CE+ CE– 4 2 CP– CP+ RXB21.1 25 26 27 28 1 N1 17 18 Q34 Y4 Y2 Q24 G 19 19 21 21 G Y1 10 11 12 13 14 15 16 Q14 9 Y3 8 D2 3 Q13 7 GND N 6 D1 M 5 N.C. B1 N 4 L 2 L B M 1 1 QAX... T Q1 4) AC 230 V N L KNX N L Y QAX... N1 3 10672A13 CE + G0 YC2 G0 YC1 YC3 CE – RXB39.
PAGE 18
List of equipment Ref. N1 R1 B1 D1 D2 D3 Q1 Q2 YH.1 YH.2 YH.3 YH.4 YC.1 YC.2 YC.3 YC.4 Description Room controller. Room unit Return air temperature sensor, room temperature sensor. Window contact 2). Presence detector 2). Airflow monitor 1- or 3-speed fan 4). Continuous fan with DC 0…10 V control Heating valve actuator, thermal, 2-position (PDM) control 3). Heating valve actuator, motorized, 3-position control 3). Heating valve actuator, electromechanic, 2-position control 3).
PAGE 19
Menu Fan control 1-2-3-speed DC 0...10 V All Parameters. Values/Range Fan speeds Fan control. Positioning signal max fan Positioning signal min fan Fan speed heating max Fan speed heating min Fan speed cooling max Fan speed cooling min Fan speed Precomfort min Fan speed Economy min Fan speed Protection min Fan start heating demand Fan start cooling demand Offset heating fan Offset cooling fan P-band Xp heating fan P-band Xp cooling fan Tn heating fan Tn cooling fan Enable fan relay Minimum on time.
PAGE 20
Ordering The room controllers can be ordered preloaded with the application described here. When ordering, specify the quantity, RXB device name, type code and application group. Example 15 Note Room controllers RXB21.1 with application group FC-10 RXB21.1/FC-10 The controllers are delivered with the basic settings shown above.
PAGE 21
FNC05 Four-pipe fan coil with electric reheater Heating with LTHW and cooling with CHW. Modulating control of heating and cooling valve. Heating with electric reheater Automatic or manual fan control. 10385S13 • • • • Plant diagram D3 YR YC YH N1 R1 B1 D1 D2 D3 Q1 YH YC YR Room controller. Room unit with temp. sensor. Return air sensor. Window switch. Presence detector. Safety thermostat electric reheater. Fan (1… 3-speed). Heating valve. Cooling valve. Electric reheater.
PAGE 22
Operating diagrams SpH YC SpC Y YH YR TR [°C] SpH YC SpH SpC OFF TR [°C] Output signal. Room temperature. Effective heating setpoint. Effective cooling setpoint. Heating sequence. Cooling sequence. Heating/cooling valve. Contactor or solid state relay for electric heating coil. Output signal. Room temperature. Effective heating setpoint. Effective cooling setpoint. Heating sequence. Cooling sequence. Fan speed 1. Fan speed 2.
PAGE 23
Functions Application FNC05 includes the following functions (refer to the description of functions CM110385 for detailed information): Function Brief description) Four-pipe fan coil. – PI control. – Two proportional control sequences, heating and cooling. – Control of thermal / electromechanic valve actuators (AC 24 V, PDM or AC 24 V, 2-position). – Control of motorized KNX bus actuator valves. – Valve exercising feature. – 2-position or proportional control.
PAGE 24
Connection diagram D3 2) YH.1 3) YC.1 3) M T M KNX B1 D1 2) D2 2) YH 3) YC 3) R1 T 3 N1 10385A05_01 CE– CE– CE+ CP+ CE+ 4 1 2 Q34 CP– 17 18 RXB22.1 25 26 27 28 22 23 24 3 2 6) 1 YR AC 230 V Q24 Y2 13 14 15 16 Q14 9 Q13 8 G Y1 7 Q44 GND D2 D1 19 19 21 21 6 Q43 5 N.C. 4 L L N N 3 M 2 N.C. B 1 B1 M QAX... Q1 4) 7) F1 N L Ref. N1 R1 B1 List of equipment D1 D2 D3 Q1 YR F1 YH, YC YH.1, YC.1 Description Room controller.
PAGE 25
Configuration The following parameters are available with application FNC05. They are set via ETS, ACS, or HandyTool. Menu Parameters.
PAGE 26
Ordering The room controllers can be ordered preloaded with the application described here. When ordering, specify the quantity, RXB device name, type code and application group. Example 15 Note Room controllers RXB22.1 with application group FC-12 RXB22.1/FC-12 The controllers are delivered with the basic settings shown above.
PAGE 27
Four-pipe fan coil with room supply air cascade FNC08 Heating with LTHW and cooling with CHW. Modulating control of heating and cooling valve. Room supply air cascade. Automatic or manual fan control. 10385S14 • • • • Plant diagram B1 YC YH Q1 B1 D1 D2 Q1 YH YC Room controller. Room unit with temp. sensor. Supply air temperature sensor. Window switch. Presence detector. Fan (1… 3-speed). Heating valve. Cooling valve.
PAGE 28
DC 0...10 V fan Fan in sequence Fan YC... XPFanH OfsFanH Valve OfsFanC XPFanC 100% SmaxC SmaxH YC... Output signal (fan / valve) TR Room temperature Sp Effective setpoint (H/C) SminH 0% 4% 0% SpHCmf SminC TR SpCCmf 0% / 4% Hysteresis for fan start Fan in parallel with min. speed Smin Min. fan speed (H/C) OfsFan Offset for fan start Valve 100% XpFan P-band for fan operation FanStartDmd Fan YC... Smax Max.
PAGE 29
KNX Connection diagrams 8 9 GND D2 Y1 G Y2 G Y4 CP– Q14 Q24 Q34 CE+ RXB21.1 1 3 25 26 27 28 19 19 21 21 N1 17 18 CE– Y3 Q13 10 11 12 13 14 15 16 10385A06 7 CE– 6 3 G Y2 5 D1 Y1 Y1 4 4 QAX... M L M N.C. L 3 N B 2 B1 1 N M M R1 CE+ T YC 3) 1 YH 3) CP+ 2) 2 D2 G 2) Y2 D1 2 B1 Q1 4) AC 230 V N L KNX N L Y AC 230 V N RXB39.1 3 4 QAX...
PAGE 30
List of equipment Ref. N1 R1 B1 / B2 D1 D2 D3 Q1 Q2 YH YH.1 YC YC.1 Description Room controller. Room unit Supply air temperature sensor. Window contact 2). Presence detector 2). Air flow monitor 1- or 3-speed fan 4). Continuous fan with DC 0…10 V control Heating valve actuator, motorized, 3-position control 3). Heating valve actuator DC 0…10 V Cooling valve actuator, motorized, 3-position control 3). Cooling valve actuator DC 0…10 V 2) Type of operation (N/O or N/C) can be selected.
PAGE 31
Menu Fan control 1-2-3-speed Parameters. Fan speeds Fan control. Positioning signal max fan Positioning signal min fan Fan speed heating max Fan speed heating min Fan speed cooling max Fan speed cooling min Fan speed Precomfort min Fan speed Economy min Fan speed Protection min Fan start heating demand Fan start cooling demand Offset heating fan Offset cooling fan P-band Xp heating fan P-band Xp cooling fan Tn heating fan Tn cooling fan Enable fan relay Minimum on time.
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/54 Siemens Building Technologies RXB application library (KNX) RXB – Fan coil applications from FC-10, FC-11, FC-12, FC-13 5BFNC08 – Four-pipe fan coil with room supply air cascade CM110672en_05 2013-06-07
PAGE 33
Two-pipe fan coil with changeover and outside air damper FNC10 Heating only (with LTHW), cooling only (with CHW) or changeover. Changeover signal via KNX bus. Modulating control of heating/cooling valve. Outside air damper for outside air supply. Outside air temperature sensor via KNX bus. Automatic or manual fan control. 10385S19 • • • • • • Plant diagram D3 YHC N1 R1 YM M T T R Fan speed 3.
PAGE 34
Functions Application FNC10 includes the following functions (refer to the description of functions CM110385 for detailed information): Function Brief description) Two-pipe fan coil.. – PI control. – Proportional control sequence, selectable: Only heating sequence, only cooling sequence or changeover. – Control of thermal or motorized valve actuators (AC 24 V, PDM / AC 24 V, 2-position / AC 24 V, 3-position). – Control of motorized KNX bus actuator valves. – Valve exercising feature. – 1...
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2) YHC.2 T YM 3) B2 N1 10385A07 CE– CP– Q34 CE+ 2 Y2 G 1 17 18 T 3 Y2 Y4 G Q24 Y1 D3 RXB21.1 25 26 27 28 2 D2 G GND 19 19 21 21 10 11 12 13 14 15 16 Y3 9 Q14 8 Q13 7 D1 3 Y1 Q23 Q24 6 N.C. M 5 L B1 4 L 2 N M 1 T QAX... M N B T R1 4 3) 3 YHC.1 CE– 2) 1 D2 CE+ 2) KNX CP+ D1 G M Y1 B1 3) Y2 D4 Connection diagram Q1 4) AC 230 V N L Ref. N1 R1 B1 List of equipment B2 D1 D2 D3 D4 Q1 YHC.1 YHC.2 YM Description Room controller.
PAGE 36
Configuration The following parameters are available with application FNC10. They are set via ETS, ACS, or HandyTool. Menu Parameters.
PAGE 37
Menu Parameters.
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/54 Siemens Building Technologies RXB application library (KNX) RXB – Fan coil applications from FC-10, FC-11, FC-12, FC-13 – Two-pipe fan coil with changeover and outside air damper CM110672en_05 2013-06-07
PAGE 39
FNC12 Four-pipe fan coil with outside air damper Heating and cooling with LTHW and cooling with CHW. Modulating control of heating and cooling valve. Outside air damper for outside air supply. Outside air temperature sensor via KNX bus. Automatic or manual fan control. 10385S20 • • • • • Plant diagram YC YH N1 R1 B1 B2 D1 D2 D3 Q1 YH YC YM Room controller. Room unit with temp. sensor. Return air sensor. Outside air temperature sensor via KNX bus. Window switch. Presence detector.
PAGE 40
Application FNC12 includes the following functions (refer to the description of functions CM110385 for detailed information): Function Brief description) Four-pipe fan coil. – – – – – – – – – – – – Fan control. Temperature measurement. Room operating modes. Setpoint shift. General functions. Room units. Compatible controllers. PI control. Two proportional control sequences, heating and cooling. Control of thermal valve actuators (AC 24 V, PDM). Control of motorized KNX bus actuator valves.
PAGE 41
D3 Connection diagram 2) T KNX YM 3) 2 G Y2 Y4 CP– Q34 1 17 18 N1 3 Y2 Q24 G B2 RXB21.1 25 26 27 28 2 Y1 Y1 D2 19 19 21 21 10 11 12 13 14 15 16 G 9 Y3 8 Q14 7 GND 3 Q13 6 N.C. M N 5 D1 B1 N 4 L 2 L B M 1 T QAX... M 10385A08 T R1 CE– 3) CE+ YC 4 3) 3 YH CE– 2) 1 D2 CE+ 2) CP+ D1 B1 Q1 4) AC 230 V N L Ref. N1 R1 B1 List of equipment B2 D1 D2 D3 Q1 YH.1 YC.1 YM Description Room controller.
PAGE 42
Configuration The following parameters are available with application FNC12. They are set via ETS, ACS, or HandyTool. Menu Parameters.
PAGE 43
Ordering The room controllers can be ordered preloaded with the application described here. When ordering, specify the quantity, RXB device name, type code and application group. Example 15 Note Room controllers RXB21.1 with application group FC-11 RXB21.1/FC-11 The controllers are delivered with the basic settings shown above.
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/54 Siemens Building Technologies RXB application library (KNX) RXB – Fan coil applications from FC-10, FC-11, FC-12, FC-13 7BFNC12 – Four-pipe fan coil with outside air damper CM110672en_05 2013-06-07
PAGE 45
FNC18 Two-pipe fan coil (changeover) and radiator Heating/cooling coil: heating only (with LTHW), cooling only (with CHW) or changeover. Changeover signal via KNX bus. Outside air temperature sensor via KNX bus. Heating with LTHW radiator. Downdraft compensation Modulating control of heating/cooling valve and radiator valve. Automatic or manual fan control. • 10385S21 • • • • • • Plant diagram D3 YHC T Q1 T YH T KNX H YHC Change-over (Fan-Coil) YH Q34 Fan speed 3.
PAGE 46
Functions Application FNC18 includes the following functions (refer to the description of functions CM110385 for detailed information): Function Two-pipe fan coil. Brief description) Fan control. Temperature measurement. Room operating modes. Setpoint shift. General functions. Room units. Compatible controllers. – PI control. – Proportional control sequence, selectable: Only heating sequence, only cooling sequence or changeover.
PAGE 47
M G 3) YH.3 YHC.3 M M Y2 M Y1 YHC.2 G Y1 3) Y2 YH.2 Connection diagrams KNX D1 B1 2) D2 2) YH.1 3) YHC.1 3) R1 T 4 3 2 1 QAX... M B T T 10385A09 RXB21.1 25 26 27 28 1 CE– CE+ CE– CE+ CP+ CP– Q34 Y2 17 18 D3 3 G Y4 Y1 G D2 19 19 21 21 10 11 12 13 14 15 16 Q24 9 2 8 Y3 7 Q14 6 Q13 5 GND N.C. L 4 L M N 3 B1 2 N 1 D1 B2 N1 Q1 4) AC 230 V N L 2) Type of operation and allocation to inputs D1 and D2 can be selected.
PAGE 48
List of equipment Ref. N1 R1 B1 B2 D1 D2 D3 Q1 YH.1, YHC.1 YH.2, YHC.2 YH.3, YHC.3 Description Room temperature controller. Room unit Return air temperature sensor, room temperature sensor. Outside air temperature sensor via KNX bus. Window contact 2). Presence detector 2). Changeover signal via KNX bus. 1...3-speed fan 4). Radiator valve, heating/cooling valve, thermal, 2-position control (PDM) 3). Radiator valve, heating/cooling valve, motorized, 3-position control (PDM) 3).
PAGE 49
Menu Parameters. Motorized Runtime Offset Values/Range 0...360 s 0...360 s LTE mode Heating coil outp bus valve Off/On Off/On Off/On Fan speeds – External control – 1-speed/2-speed/3-speed Fan control. Manual / Auto Minimum on time. 1...10 min Temperature sensor B1 – Room – Return air – Measured value only – No sensor Periodic fan kick Comfort 0...90 min (90min = Off) Periodic fan kick Economy 0...360 min (360min = Off) Measured value correction – 3...3 K Setpoint offset range ± 0...
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/54 Siemens Building Technologies RXB application library (KNX) RXB – Fan coil applications from FC-10, FC-11, FC-12, FC-13 8BFNC18 – Two-pipe fan coil (changeover) and radiator CM110672en_05 2013-06-07
PAGE 51
FNC20 Four-pipe fan coil, controlled by one damper Heating with LTHW and cooling with CHW. 3-position damper actuator. Automatic or manual fan control. 10385S22 • • • Plant diagram YM Q1 T B1 N1 R1 B1 D1 D2 Q1 YM Room controller. Room unit with temp. sensor. Return air sensor. Window switch. Presence detector. Fan (1… 3-speed). 3-position damper actuator. Operating diagrams T R1 D1 D2 N1 KNX R Y [%] H 100 C N 10385D52 YM 0 Q34 Output signal. Room temperature.
PAGE 52
Functions Application FNC20 includes the following functions (refer to the description of functions CM110385 for detailed information): Function Brief description) Four-pipe fan coil with damper control. – – – – – – – – – Fan control. Temperature measurement. Room operating modes. Setpoint shift. General functions. Room units. Compatible controllers. PI control. Two proportional control sequences, heating and cooling. Control of motorized damper actuators (AC 24 V, 3-position). 1...
PAGE 53
List of equipment Ref. N1 R1 B1 D1 D2 Q1 YM Description Room controller. Room unit Return air temperature sensor, room temperature sensor. Window contact 2). Presence detector 2). 1- or 3-speed fan 4). 3-position damper actuator, AC 24 V 3). 2) Type of operation (N/O or N/C) can be selected. 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).
PAGE 54
Menu Parameters. Values/Range Free (bus = 1) = Contact open/closed Occupancy: Occupied = Contact open/closed Window: Window open = Contact open/closed Digital input 2 Free (bus = 1) = Contact open/closed Occupancy: Occupied = Contact open/closed Window: Window open = Contact open/closed Temporary Comfort mode 0...360 min General functions. Digital input 1 Master/slave Free (bus = 1) = Contact closed. Free (bus = 1) = Contact closed. 60 min 0...90 min 5 min Off-delay presence detector 0...