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Vaillant sensoCOMFORT VRC 720/3, Operating And Installation Instruction

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Vaillant sensoCOMFORT VRC 720/3 Operating And Installation Instruction Download Page 35

0020334316_02 Operating and installation instructions

35

Abbreviation

Meaning

RT

Room thermostat

SCA

Cooling signal

SG

Transmission system operator interface

Solar yield

Solar yield sensor

SysFlow

System temperature sensor

TD1, TD2

Temperature sensor for a differential temper-
ature control

TEL

Switch contact for remote control

TR

Isolating circuit with switching floor-standing
boiler

Summary of Contents for sensoCOMFORT VRC 720/3

Page 1: ...en Operating and installation instructions en Country specifics sensoCOMFORT VRC 720 3 0020334316_02 09 11 2023 TRANSLATION...

Page 2: ...2 en Operating and installation instructions 3 en Country specifics 59...

Page 3: ...modules 27 4 2 System with FM3 functional module 27 4 3 System with FM5 and FM3 functional modules 28 4 4 Potential application for the functional modules 28 4 5 Connection assignment for the FM5 fun...

Page 4: ...must not be carried out by children unless they are supervised Any other use that is not specified in these instructions or use beyond that specified in this document shall be considered improper use...

Page 5: ...ctions 5 1 3 Safety regulations 1 3 1 Risk of material damage caused by frost Do not install the product in rooms prone to frost 1 3 2 Regulations directives laws standards Observe the national regula...

Page 6: ...st be lower than the temper ature that the competent person has set in the MENU SETTINGS Installer level Installation configuration Circuit OT switch off threshold C function In the MENU CONTROL Zone...

Page 7: ...o the desired temperature within the time periods In the times outside of the time periods 5 the living rooms are heated to the lower set back temperature 4 that is set Example of cooling mode in the...

Page 8: ...as shown in the figure The heat curve is displaced accord ing to the value of the target room temperature along axis a which is angled at 45 At an outdoor temperature of 15 C the control system provi...

Page 9: ...t protection is activated Cooling Mode Manual Uninterrupted retention of the desired temperature Desired temperature C What do the different temperatures mean Section 2 3 Time contr What is meant by t...

Page 10: ...d off outside of the time peri ods DHW temperature C What do the different temperatures mean Section 2 3 Reduced DHW temperature C Set the domestic hot water temperature to which water should be heate...

Page 11: ...s Installation off Installation is switched off Frost protection and if available ventil ation remain activated at the lowest level 2 14 2 Menu item INFORMATION MENU INFORMATION Ext power reduction Di...

Page 12: ...erial number Identification of the product The 7th to 16th digits of the serial number form the article number 2 14 3 SETTINGS menu item MENU SETTINGS Installer level Enter access code Access to the i...

Page 13: ...ow tariff applies outside of the time periods Low tariff Offset Room temperature K Comparison of the temperature difference between the measured value in the system control and the value for a referen...

Page 14: ...erature falls below the set value the system control activates the back up boiler in parallel with the heat pump Factory setting 7 C Heating alternative point C If the outdoor temperature falls below...

Page 15: ...ump The back up boiler is activated for the anti legionella function frost protection or de icing Heating The back up boiler supports the heat pump during heating The back up boiler is activated for t...

Page 16: ...he sys tem related functions You can use the connected components to determine the basic system diagram code for the installed installation Using the functional modules basic system diagram start up a...

Page 17: ...ssive temperature difference between the heating flow and return and protects against corrosion in the floor standing boiler when the dew point is not reached for an ex tended period Status Display of...

Page 18: ...n Room temp mod The installed temperature sensor measures the current room tem perature The system control calculates a new target room temper ature that is used to adjust the flow temperature Differe...

Page 19: ...at the zone valve DHW Cylinder If there is an existing domestic hot water cylinder the Active set ting must be selected Factory setting Active Target flow temperature C Target value for the flow temp...

Page 20: ...eating temp sensor top C Actual temperature in the upper part of the heating section of the buffer cylinder Heating temp sensor bottom C Actual temperature in the lower part of the heating section of...

Page 21: ...ng If the temperature difference between the bottom cylinder temper ature sensor and the collector temperature sensor is smaller than the set differential value and the set minimum collector temper at...

Page 22: ...pping the differential tem perature control Factory setting 99 C Diff temp sensor 1 Display of the current temperature at differential temperature sensor 1 Diff temp sensor 2 Display of the current te...

Page 23: ...due to interferences Maintain a minimum clearance of 120 mm to power sup ply cables or other electromagnetic sources of interfer ence For parallel routing to mains connection lines guide the cables i...

Page 24: ...4 Operating and installation instructions 0020334316_02 3 5 Installing the system control and outdoor temperature sensor 6 VRC 720 VRC 693 VRC 9535 H05VVF 2 x 0 75 mm VRC 720 1 3 m 6 60 1 25 mm A B C...

Page 25: ...0020334316_02 Operating and installation instructions 25 A B 3 VRC 693 VRC 9535 E W S N 2 5 m VRC 693 1 6 2 3 B A 4 B A...

Page 26: ...26 Operating and installation instructions 0020334316_02 5 6 VRC 9535 DCF O T AF 1 6 DCF O T AF 2 DCF O T AF 3 B A DCF O T AF 4 DCF O T AF B A DCF O T AF 5 6...

Page 27: ...ional modules eBUS VRC 720 Simple systems with a direct heating circuit do not require a functional module 4 2 System with FM3 functional module VRC 720 eBUS FM3 VR 70 Systems with two heating circuit...

Page 28: ...4 4 Potential application for the functional modules 4 4 1 FM5 functional module Each configuration corresponds to a defined connection assignment of the FM5 Section 4 5 functional module Configura t...

Page 29: ...S terminal When connecting pay attention to the polarity 4 Output relay terminals 5 Power supply S6 to S11 sensor terminals An external control can also be connected S12 S13 signal terminals I input O...

Page 30: ...r the FM3 functional module S1 1 2 S2 1 2 S3 1 2 S4 1 2 S5 1 2 S6 1 2 S7 O I R3 4 N 1 2 R5 6 N 1 2 R2 L N R1 L N 230V L N BUS 5 6 7 1 2 4 3 R3 4 N 1 2 R5 6 N 1 2 1 Input sensor terminals 2 Signal term...

Page 31: ...coTEC VC boiler permanent position Heating mode 4 7 2 Cascade with gas or oil fired boilers Maximum seven boilers possible As of the second boiler the boilers are connected via VR 32 address 2 to 7 Sy...

Page 32: ...pump control module and or heat pump 16 16 Domestic hot water generation provided by the heat pump and back up boiler with a bivalent domestic hot water cylinder Connecting the upper domestic hot wat...

Page 33: ...r cascade x 1 x 2 Gas oil fired boiler x 1 x x x 1 x Gas oil fired boiler cascade x 1 x 1 x For heat pump systems 8 Monoenergetic heat pump sys tem x x 1 x x x 1 x 1 x Hybrid system x 9 Hybrid system...

Page 34: ...9d Bypass valve 9e Diverter valve for potable water 9f Diverter valve cooling 9g Diverter valve 9gSolar Solar diverter valve 9h Filling draining cock 9i Purging valve Abbreviation Meaning 9j Tamper pr...

Page 35: ...tat SCA Cooling signal SG Transmission system operator interface Solar yield Solar yield sensor SysFlow System temperature sensor TD1 TD2 Temperature sensor for a differential temper ature control TEL...

Page 36: ...36 Operating and installation instructions 0020334316_02 4 9 2 Basic system diagram 0020184677 4 9 2 1 Setting on the system control Basic system diagram code 1...

Page 37: ...0020334316_02 Operating and installation instructions 37 4 9 2 2 Basic system diagram 0020184677...

Page 38: ...38 Operating and installation instructions 0020334316_02 4 9 2 3 Wiring diagram 0020184677...

Page 39: ...9 3 Basic system diagram 0020178440 4 9 3 1 Setting on the system control Basic system diagram code 1 FM3 configuration 1 FM3 MO Circulation pump Circuit 1 Circuit type Heating Circuit 2 Circuit type...

Page 40: ...US 10h SysFlow S5 2 12d 1 9j 8e 9h 3f 10c 9a 9c 3 12d R2M 7j 1 M 3f 10c 9a FS2 12k 9c 2 4 3 3 9k 12d 2 1 R2M 7j S3 2 2 12d 2 12d 10e DHW 2 9a 12q LAN WLAN BUS BUS BUS BUS BUS BUS BUS BUS BUS BUS BUS B...

Page 41: ...L N R3 R4 N R5 R6 1 2 1 2 230V 0 24V S1 1 2 S2 1 2 S3 1 2 S4 1 2 S5 1 2 S6 1 2 S7 I 0 I _ BUS 230 V 12d VR70 SysFlow FS2 12k2 3f2 3f1 3e M 9k2 M 12m AF 0 DCF 230 V 230 V 0 24 V L N X1 230 V X12 L N 24...

Page 42: ...35 of the nominal flow rate must always be able to flow through a reference room without an individual room temperature control valve 4 9 4 2 Settings on the system control Basic system diagram code...

Page 43: ...0020334316_02 Operating and installation instructions 43 4 9 4 4 Basic system diagram 0020177912...

Page 44: ...44 Operating and installation instructions 0020334316_02 4 9 4 5 Wiring diagram 0020177912...

Page 45: ...nfiguration 2 FM5 MO Anti legio pump Circuit 1 Circuit type Heating Circuit 1 Room temp mod Active or Expanded Circuit 2 Circuit type Heating Circuit 2 Room temp mod Active or Expanded Circuit 3 Circu...

Page 46: ...46 Operating and installation instructions 0020334316_02 4 9 5 4 Basic system diagram 0020280010...

Page 47: ...0020334316_02 Operating and installation instructions 47 4 9 5 5 Wiring diagram 0020280010...

Page 48: ...ng Circuit 1 Room temp mod Active or Expanded Circuit 2 Circuit type Heating Circuit 2 Room temp mod Active or Expanded Circuit 3 Circuit type Heating Circuit 3 Room temp mod Active or Expanded Zone 1...

Page 49: ...0020334316_02 Operating and installation instructions 49 4 9 6 4 Basic system diagram 0020260774...

Page 50: ...50 Operating and installation instructions 0020334316_02 4 9 6 5 Wiring diagram 0020260774...

Page 51: ...ll cooling heat pumps Installation instructions for the heat pump 2 2 Briefly switch off the heat pump in cascades heat pump 1 and if required FM5 2 3 Switch the heat pump in cascades heat pump 1 and...

Page 52: ...directives as stated on the declaration of conformity The declaration of conformity can be viewed at the manufac turer s site 7 6 Guarantee and customer service 7 6 1 Guarantee You can find informatio...

Page 53: ...nal room heating efficiency may deviate if this function is deac tivated Temperature control class VI Contribution to the seasonal room heat ing energy efficiency s 4 0 7 9 Technical data System contr...

Page 54: ...Section 6 Display F Boiler fault the specific fault code e g F 33 with the specific boiler is shown in the display Boiler fault 1 Reset the boiler by first selecting Reset and then Yes 2 If the fault...

Page 55: ...Check the plug connection FM3 address 1 communica tion interrupted can be ad dress 1 to 3 F 1212 F 1214 The cable is defective Replace the cable Incorrect plug connection Check the plug connection FM...

Page 56: ...function that is appropri ate for the connected component on the FM5 s multi function output Sys control room temperat ure sensor signal invalid F 1361 Room temperature sensor de fective Replace the c...

Page 57: ...res main tenance The ventilation unit requires maintenance work Refer to the operating or install ation instructions for the relev ant ventilation unit for informa tion on the maintenance work require...

Page 58: ...lements 8 D Determining the installation site 23 Display 8 Disposal 52 Documents 52 F Fault 51 Faults 51 Frost 5 I Intended use 4 M Maintenance 51 P Prerequisites for starting up the heating installat...

Page 59: ...ii privind garan ia produc torului la adresa de contact indicat pe partea posterioar 2 2 Serviciul de asisten tehnic Datele de contact pentru serviciul nostru de asisten teh nic le g si i la adresa in...

Page 60: ...60 Country specifics 0020334316_02 Vaillant 4 6 5 Vaillant 6 Vaillant 7 8 10 9 7 8 3 9 0800 501 805...

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Page 64: ...01 805 info vaillant ua www vaillant ua Publisher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 49 2191 18 0 Fax 49 2191 18 2810 info vaillant de www vaillant de 40 42859 l 492191...

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