Siemens RRV851 Quick Start Manual Download Page 11 | Manualshive

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Siemens

Temperature Controller RRV851

CE1N2725en

Building Technologies

27.08.2007

Dimensions

Without terminal covers

With terminal covers

Dimensions in mm

©

2005-2007 Siemens Switzerland Ltd

Subject to alteration

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Summary of Contents for RRV851

Page 1: ...al applications The RRV851 controller is designed for central ducted HVAC systems that require easy operation by the building occupant The MMI to be connected to the controller is the QAX850 master room unit Fan heating and or cooling outputs control the temperature in the building The RRV851 controller can be configured for various types of HVAC equipment These include Heating only ducted systems...

Page 2: ...summary Type reference Description Compatible with RRV851 Temperature controller QAX850 Master room unit QAA32 Room temperature sensor QAH11 1 Cable temperature sensor The QAX850 is the master MMI for the RRV851 and must be ordered as a separate item Any additional remote temperature sensors must also be ordered separately Terminal covers are included in the RRV851 box Not suitable for use with th...

Page 3: ...only Two digital inputs are provided A potential free contact closed across the D1 and D_GND terminals will override to Comfort mode only when the mode selector is set to Auto Timer mode D2 can be configured for an emergency heating enable signal or an external fault lockout signal Either of these functions can be selected via the configuration DIP switches When emergency heating is selected a pot...

Page 4: ...put Y1 Cooling or compressor output Output Y2 Heating or reversing valve output Output Y3 Auxiliary output that can be configured for auxiliary heating emergency heating 2nd step cooling or dual compressor Output control is 2 position 3 position modulating can be selected via parameter P17 for applications A1 A2 and A8 only Configuration Initial application setup of the RRV851 controller to match ...

Page 5: ...have been made and power is connected Default parameter settings are based on the application selected and may be modified if required Refer to the list below Parameters cannot be accessed if the system is in Off mode Refer to the Installation Instructions for setup details and the Application Manual for default parameter values No Parameter Range P00 Temperature scale C F P01 Frost protection lim...

Page 6: ... operation Easy access is required for service personnel Local installation regulations must be observed The Mounting Instructions are included in the RRV851 controller packaging When not mounting within a panel cable strain reliefs must be used for all wiring to AC 230 V terminals The conductors must be secured with cable ties see diagram Cable strain reliefs should be used for all wiring to avoi...

Page 7: ...xternal supply line fusing Non renewable fuse slow Automatic line cutout Release characteristic max 10 A max 13 A B C D to EN 60 898 Relay contacts Y1x Y2x Y3x Relay output Switching voltage AC current At 250 V At 19 V Switch on current Contact life potential free max AC 250 V min AC 19 V max 3 A res 1 A ind cos φ 0 6 min 5 mA min 20 mA max 5 A 1 s 1 105 cycles Boiler Q1x Relay contacts Q7x Relay ...

Page 8: ...midity Mechanical conditions IEC 721 3 3 class 3K5 0 50 C 5 95 r h non condensing class 3M2 Transport to Climate conditions Temperature Humidity Mechanical condition IEC 721 3 2 class 2K3 25 70 C 95 r h class 2M2 Classification to EN 60 730 Mode of operation automatic controls type 1B Degree of contamination controls Environment 2 Rated surge voltage 4000 V Software class A Materials and colors Co...

Page 9: ...4 Q71 1 2 3 F1 1 Y11 Y12 Y14 Y21 Y22 Y24 Y34 Y31 Y1 N1 N2 AC 230V L N TX TX 485 gnd RS485 Y2 B1 F2 Y3 B1 External temperature sensor optional or pipe changeover sensor application A8 CR1 Compressor relay stage 1 CR2 Compressor relay stage 2 D1 Remote activation of Comfort mode D2 Fault or emergency heating F1 3 speed fan F1 External supply line fusing max 10 A F2 1 speed fan N1 RRV851 controller N...

Page 10: ... fusing must be used All input and bus terminals are not protected against connection to AC 230 V Observe the technical data for fan relay outputs Max AC 250 V 6 4 A All output cables used must satisfy insulation requirements with regard to mains potential AC 24 V outputs must be segregated from AC 250 V outputs Care should be taken when cables pass through sharp metal openings conduits or ducts D...

Page 11: ...iemens Temperature Controller RRV851 CE1N2725en Building Technologies 27 08 2007 Dimensions Without terminal covers With terminal covers Dimensions in mm 2005 2007 Siemens Switzerland Ltd Subject to alteration ...

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