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General information

Product Information

Vitotronic 300, Model GW2

For installation in or mounting on
Viessmann boilers only.

Applicable to the following control
units

Order No. 7134 555, 7143 156, 7511 362 from
Serial No. 7143 000



Order No. 7134 555, 7143 156, 7511 362 from
Serial No. 7187 101



Order No. 7134 555, 7143 156, 7511 362 from
Serial No. 7248 248



5285

941

Содержание VITOTRONIC 300 GW2

Страница 1: ...l GW2 Outdoor reset logic digital boiler and heating circuit control unit Certified as a component part of Viessmann boilers only Read and save these instructions for future reference IMPORTANT for us...

Страница 2: ...Requirements Advice to owner Once the installation work is complete the heating contractor must familiarize the system operator ultimate owner with all equipment as well as safety precautions requirem...

Страница 3: ...tion in or mounting on Viessmann boilers only Applicable to the following control units Order No 7134 555 7143 156 7511 362 from Serial No 7143 000 Order No 7134 555 7143 156 7511 362 from Serial No 7...

Страница 4: ...r and other sensors 26 Connection of the pumps 30 Connection of boiler return mixing valve or modulating valve actuator 32 Making space for accessory adaptors on the DIN rail CM2 only 34 Connections t...

Страница 5: ...mation 77 Scanning and resetting the Service display 78 Troubleshooting Troubleshooting steps 79 Diagnosis 80 Functional description Boiler temperature control 86 Heating circuit control 87 DHW tank t...

Страница 6: ...erature sensor T2 s A1 Close mixing valves with external heating circuit controls s M2 Heating circuit pump mixing valve circuit 2 s M3 Heating circuit pump mixing valve circuit 3 sA DHW pump sK DHW r...

Страница 7: ...er Temperature sensor T1 Wiring of the temperature sensor T1 in heating systems with heating circuit control units which are not connected via the LON BUS to the boiler control unit Coding required 4C...

Страница 8: ...HW tank temperature sensor aJA Therm Control temperature sensor s M2 Heating circuit pump mixing valve s M3 Heating circuit pump mixing valve s A1 Closing the mixing valves with external heating circu...

Страница 9: ...e Wiring diagram Wiring of the Therm Control in heating systems with heating circuit control units are not connected to the boiler control unit via the LON Required coding Change 4C to 2 use the plug...

Страница 10: ...erature sensor T2 s M2 Heating circuit pump mixing valve circuit 2 s M3 Heating circuit pump mixing valve circuit 3 sA Circulation pump for heating the DHW tank sK DHW re circulation pump sL Shunt pum...

Страница 11: ...s proportionally closed via the temperature sensor T1 and the minimum return temperature is assured The shunt pump must be sized so that bypassed water accounts for approx 30 of the total flow rate of...

Страница 12: ...ure sensor s A1 Heating circuit without mixing valve if installed s M2 Heating circuit pump mixing valve circuit 2 s M3 Heating circuit pump mixing valve circuit 3 sA Circulation pump for heating the...

Страница 13: ...door re set boiler control unit Viessmann modulating burner is operated through Vitotronic control The boiler water temperature which is established in the heating mode is higher than the maximum heat...

Страница 14: ...M3 Supply temperature sensor mixing valve circuit 3 Boiler temperature sensor DHW tank temperature sensor s A1 Heating circuit without mixing valve if installed s M2 Heating circuit pump mixing valve...

Страница 15: ...eturn connection at the top those with the lower temperatures to the return connection at the bottom Please note At least 15 of the take off from the rated output must be connected to the return conne...

Страница 16: ...3 Boiler temperature sensor DHW tank temperature sensor s A1 Heating circuit without mixing valve if installed s M2 Heating circuit pump mixing valve circuit 2 s M3 Heating circuit pump mixing valve c...

Страница 17: ...ans of the outdoor re set boiler control unit Viessmann modulating burner is operated through Vitotronic control The boiler water temperature which is established in the heating mode is higher than th...

Страница 18: ...g Vitotrol remote control accessory aVH Connection of external equipment Line voltage motherboard s A1 Heating circuit pump or control output sA Circulation pump for heating the DHW tank accessory sK...

Страница 19: ...Installation 19 Overview of electrical connections for VD2 VD2A CT3 only 5285 941 01...

Страница 20: ...Installation 20 Overview of electrical connections for CM2 only 5285 941 01...

Страница 21: ...1 Run the cables from the connection enclosure into the control unit 2 Apply strain relief to cables see below Cables with moulded strain relief clamp Connect cable and strain relief clamp OR Fasten...

Страница 22: ...7820 144 Vitorond 200 VD2 VD2A 1020 7820 142 Vitocrossal 200 CM2 1041 7820 145 1 Push the boiler coding card through the recess in the cover and insert it in plug in location X7 5285 941 01 For matchi...

Страница 23: ...et to 110 C 230 F 3 Re fit the fuse box Please note Adjustment is required for the Vitocrossal 300 See Service Instructions for Vitocrossal 300 Non condensing boiler VD2 VD2A C F Condensing boiler CT3...

Страница 24: ...s break off the cams identified by the shaded areas in the Fig from the stop dial A 75 to 100 C 167 to 212 F 3 Fit the selector knob R so that the marking is in the centre of the selected range Please...

Страница 25: ...g wall of the building In the case of multi storey buildings it should be mounted in the upper half of the second storey Make sure that the sensor is not located over windows doors and air vents nor i...

Страница 26: ...60 140 578 597 616 3 Compare the value measured with the current temperature If the value differs significantly check installation and if necessary replace sensor Technical data Degree of protection I...

Страница 27: ...tems without domestic hot water heating Do not connect the DHW tank temperature sensor Check the sensor 1 Disconnect plug in the terminal compartment of the boiler control 2 Measure resistance of sens...

Страница 28: ...terminals 1 and 2 of the plug Return temperature in C F Resistance in 30 86 40 104 60 140 569 592 643 3 Compare the value measured with the current temperature If the value differs significantly chec...

Страница 29: ...ls 1 and 2 of the plug Flue gas temperature in C F Resistance in 180 176 160 320 200 392 650 800 880 3 Compare the value measured with the actual temperature If the value differs significantly check i...

Страница 30: ...120 VAC pumps Note The maximum power consumption of all pumps is 4A Rated current max 2 FLA Recommended connection cable AWG 14 Use contactor for pumps with higher current rating Connect the 3 wire ca...

Страница 31: ...VAC pumps Note The maximum power consumption of all pumps is 4A Rated current max 2 FLA Recommended connection cable AWG 14 Use contactor for pumps with higher current rating Connect the 3 wire cable...

Страница 32: ...A Recommended connection wire size AWG 14 Part No 7134 559 Operating time 5 to 199 sec selected via coding address 40 1 120V valve adaptor 2 120V valve actuator 1 24V valve adaptor 2 24V valve actuato...

Страница 33: ...nection wire size AWG 14 Operating time 5 to 199 sec selected via coding address 40 1 120V Valve Adaptor 2 120V valve actuator 1 24V Valve Adaptor 2 24V valve actuator 1 Disconnect power to control 2...

Страница 34: ...pare DIN terminals 23 24 25 and 26 one at a time Place the screwdriver between the rail and the base of the terminal and turn the screwdriver clockwise Discard the removed terminals 3 Re install the D...

Страница 35: ...when the contact is opened Emergency operation Move jumper from terminals 16 and 17 to terminals 17 and 18 5285 941 01 The terminals should be used for safety switch off purposes only e g through a h...

Страница 36: ...VAC 60 Hz Rated current max 2 FLA Recommended connection wire size AWG 14 1 Disconnect power to control and burner 2 Connect the compiled failure alarm as shown in the diagram A Connect terminal strip...

Страница 37: ...Hz Rated current max 2 FLA Recommended connection wire size AWG 14 1 Disconnect power to control and burner 2 Connect the compiled failure alarm as shown in the diagram A Connect terminal strip in co...

Страница 38: ...t pump is switched off Please note During controlled switch off or Close mixing valves there is no frost protection of the boiler or heating circuits and no minimum boiler water temperature is maintai...

Страница 39: ...d by the preset max boiler water temperature or by the value set on the mechanical adjustable high limit The required boiler set point value is set via the coding address 9b External changeover betwee...

Страница 40: ...as shown or less 93 200 87 188 87 188 88 190 Single boiler systems Coding 01 1 factory setting When a building automation system is connected only the connections on plug aVD are required The DHW tan...

Страница 41: ...odulation can be switched externally The boiler water temperature is limited by the preset maximum boiler water temperature or via the mechanical adjustable high limit The setpoint value is selected v...

Страница 42: ...et code 06 to the temperature as shown or less 93 200 87 188 87 188 88 190 Single boiler systems Coding 01 1 factory setting When a building automation system is connected only the connections on plug...

Страница 43: ...es modulation can be switched externally The boiler water temperature is limited by the preset maximum boiler water temperature or via the mechanical adjustable high limit The setpoint value is select...

Страница 44: ...set code 06 to the temperature as shown or less 93 200 87 188 87 188 88 190 Single boiler systems Coding 01 1 factory setting When a building automation system is connected only the connections on plu...

Страница 45: ...mbustion Air Device Adaptor B DIN Rail in connection enclosure Connection of the combustion air blower to adaptor Rated voltage 120 VAC Rating current max 5 FLA Recommended connection wire size AWG 14...

Страница 46: ...50 plug and DIN rail connections as shown in the diagram Wire BK2 must be connected to terminal 18 and BK3 to terminal 19 DO NOT reverse Connection of the combustion air blower to adaptor Rated voltag...

Страница 47: ...l and burner 2 Make connection as shown in the diagram A Combustion Air Device Adaptor in connection enclosure B Relay 120 VAC coil field supplied C Combustion air damper D End switch rated for 120 VA...

Страница 48: ...plug from the Vitotronic control and discard 3 Install new 150 plug supplied attached to flue gas temperature switch 5285 941 01 Please note that the diagram shown is only a simplified conceptual dra...

Страница 49: ...n for external equipment 1 Remove jumper between terminals 12 and 15 2 Make connection as shown in diagram 5285 941 01 Please note that the diagram at left is only a simplified conceptual drawing of a...

Страница 50: ...er between terminals 21 and 22 2 Make connection as shown in diagram 5285 941 01 Please note that the diagram shown is only a simplified conceptual drawing of a typical low water cut off LWCO device R...

Страница 51: ...r fault indicator B4 Connection for burner hours counter A To plug in connection in connection enclosure B To burner 1 Disconnect power to burner and boiler control 2 Connect plugs fA and plug l to re...

Страница 52: ...ner f Power supply connection of control unit 120 VAC fA Burner 1st stage l Burner 2nd stage aB Plugs for external equipment a External safety devices remove jumper when connecting b External controll...

Страница 53: ...ontrol 2 Connect 240 VAC power to the terminals 21 22 and 23 on the DIN rail inside the connection enclosure Provide fuseable disconnect means according to local codes 3 Connect supplied power cable t...

Страница 54: ...de fuseable disconnect means according to local codes 3 Connect supplied power cable to the motor terminals on the burner 4 Connect cable plug to the socket on the DIN rail in the connection enclosure...

Страница 55: ...local codes B Terminals 40 C Connection enclosure 1 Ensure that the main power supply to the control contains overcurrent protection with a maximum rating of 15 A and 2 pole disconnect 2 Connect power...

Страница 56: ...fault indicator B4 Connection for burner hours counter A To plug in connection in connection enclosure B To burner interface 1 Disconnect power to burner and boiler control 2 Connect plugs fA and plu...

Страница 57: ...lock in position at point A 3 Insert the flat cable from the Optolink into plug X20 4 Insert the plug of the programming unit into socket X10 Use cable guides in cover for routing 5 Engage the stay ba...

Страница 58: ...lock in position at point A 3 Insert the flat cable from the Optolink into plug X20 4 Insert the plug of the programming unit into socket X10 Use cable guides in cover for routing 5 Engage the stay ba...

Страница 59: ...VD2 VD2A CT3 only 1 Remove the cover of the connection enclosure 2 Unscrew the screws from the front housing 3 Swing up the front part of the control housing 4 Position the stay bar so that it suppor...

Страница 60: ...low cables to come in contact with hot metal components 2 Mount the control to the control panel 3 Secure the control to the control panel with screws Note Screws to secure control are included with t...

Страница 61: ...stay bar open it up and lock in position at point A 3 Insert the flat cable from the Optolink into plug X20 4 Insert the plug of the programming unit into socket X10 Use cable guides in cover for rou...

Страница 62: ...e Control Unit CM2 only 1 Remove the control cosmetic cover 2 Unscrew the screws from the front housing 3 Swing up the front part of the control housing 4 Position the stay bar so that it supports the...

Страница 63: ...lect the language if required 65 15 Integrate the control unit in the LON BUS system in conjunction with heating circuits connected downstream 66 16 Carry out participant check 67 17 Match the control...

Страница 64: ...TEST button Energy saving mode Party mode Hinged cover of programming unit Operating status indicator green Fault indicator red 2 Check assignment of heating circuits Check that the stickers for the...

Страница 65: ...ustable high limit R is bridged The burner is switched on until the boiler water temperature reaches the safety temperature and the fixed high limit operates When the burner is switched off by the fix...

Страница 66: ...otronic 200 H heating circuit controls and Vitocom 300 connected downstream Participant No 1 Coding 77 1 Participant No 10 Coding 77 10 Participant No 11 Coding 77 11 Participant No 99 Control unit is...

Страница 67: ...Consecutive list number 2 Select the required participant with or 3 Activate the check with If communication between the two units is verified Check OK appears in the display If communication is not v...

Страница 68: ...ding on the system equipment installed Burner stage 1 ON Burner stage 1 2 ON Burner modulation open Burner modulation neutral Burner modulation closed Output 20 ON Output 29 ON Output 52 open closed n...

Страница 69: ...ting drive of the burner is at maximum output 4 Establish the maximum burner out put through the fuel consumption 5 With function Activate Burner mod closed and measure the time it takes for the actua...

Страница 70: ...ns digits of the maximum output established in point 4 e g max output 210 kW here set 10 09 hundreds digit of the maximum output established in point 4 e g max output 210 kW here set 2 0A the basic ou...

Страница 71: ...lope n 1 4 Shift N 0 See conversion chart on the back of the manual for F 1 Set the desired room temperature Normal room temperature Set the desired day temperature with the set point selector Desired...

Страница 72: ...t Press 9 and OK simultaneously for approx 2 seconds Press OK 68 Participant check in conjunction with LON Press w and OK simultaneously for approx 2 seconds Press w and OK simultaneously for approx 1...

Страница 73: ...red room temp Current room temp Boiler coding card Scan 1 Scan 2 Scan 3 Scan 4 Scan 5 Scan 6 Scan 7 The damped outdoor temperature can be reset to the current outdoor temperature by pressing D Only di...

Страница 74: ...US participant No participant connected Number of participants e g remote control 0 1 2 Free Free 0 1 to F System type System circuit A1 Mixing valve Mixing valve DHW Coding circuit M2 circuit M3 tank...

Страница 75: ...version Remote control for system circuit A1 Operating mode of system circuit A1 Coding Without remote control A0 0 With Vitotrol 200 remote control A0 1 With Vitotrol 300 remote control A0 2 0 to F...

Страница 76: ...1 8 8 8 8 8 Scan 5 8 Viessmann participant number 0 to F Node address Subnet address system number 0 to F 0 to F 0 to F 0 to F 0 to F 8 8 8 8 8 Scan 6 8 Software version Communication coprocessor 0 to...

Страница 77: ...Output 20 ON OFF Output 29 ON OFF Output 52 Open Closed DHW tank pump ON OFF DHW pump ON OFF Heating circuit pump ON OFF Mixing valve Open Closed Different languages Only displayed when LON communica...

Страница 78: ...edged service message can be displayed again by pressing for approx 3 seconds Press Service scan is terminated After carrying out maintenance reset coding 24 1 see page 120 to 24 0 If coding address 2...

Страница 79: ...fault message or ascertain behaviour of system 2 Look for the corresponding cause of the fault in the diagnosis tables Please note Retrieve fault codes from the fault memory 3 Establish the action re...

Страница 80: ...ety circuit potential free Ext fault Outdoor sensor Supply sensor Boiler sensor DHW tank temperature sensor 1 or 2 Sensor 17A Sensor 17B Room sensor Flue gas sensor Participant fault The meaning of th...

Страница 81: ...e 86 48 Mixing valve is closed Open circuit Supply temperature sensor of mixing valve circuit M2 Check supply temperature sensor see page 86 4c Mixing valve is closed Open circuit Supply temperature s...

Страница 82: ...fault codes are displayed Short circuit Collector temperature sensor S1 on the Vitosolic Check sensor on the solar control 93 Controlled operation Only the solar control fault codes are displayed Shor...

Страница 83: ...electronics board b6 Operation at constant temperature Invalid hardware code Check the control software circuit board and confirm the coding address Enter coding 2 see page 125 for instructions Change...

Страница 84: ...itional fixed high limit Check system pressure reset fixed high limit reset flue gas damper cd Controlled operation Communication fault Vitocom 300 Check connections and Vitocom 300 cEe Controlled ope...

Страница 85: ...e page 112 df Controlled operation without influence of room temperature Open circuit Room temperature sensor mixing valve circuit M3 Check room temperature sensor see page 112 e0 Controlled operation...

Страница 86: ...age 114 onwards for description Functions The boiler water temperature is measured via a multiple sensor well by three sensors separately Fixed high limit FHL liquid expansion Adjustable high limit AH...

Страница 87: ...g system The heating curve determines the set point boiler water temperature value as a function of the outdoor temperature Control takes place on the basis of the mean outdoor temperature This is der...

Страница 88: ...conjunction with mixing valve circuit The control behaviour of the mixing valve can be influenced via coding address C4 Frost protection A supply temperature of 15 to 22 C 59 to 72 F is assured for o...

Страница 89: ...omatic re starting can take several hours Lower limit of control range Electronic minimum limit Setting range 1 to 127 C 34 to 261 F Change via coding address C5 Control sequence Mixing valve circuit...

Страница 90: ...c hot water heating and the DHW circulation pump are effective for all heating circuits Individual switching times can be assigned to each heating circuit via the coding address 7F Frost protection fu...

Страница 91: ...door temperature the heating curve slope and the setting of the coding address A2 DHW tank temperature rises Set point value 2 5 4 5 F The boiler water temperature set point value is reset to the weat...

Страница 92: ...6 Boiler coding card 97 Fuses 97 TEST button 97 Fixed high limit 98 Adjustable high limit 98 Outdoor temperature sensor 99 Boiler temperature sensor and DHW tank temperature sensor 101 Strap on temper...

Страница 93: ...t conditions During storage and transport 20 to 65 C 4 to 149 F Relay outputs at 120V for Heating circuit pumps or control output s 2 FLA 120 VAC 1 Circulation pump for heat ing the DHW tank sA 2 FLA...

Страница 94: ...ctions and external equipment Plug in locations for electronics board LON communication module programming unit boiler coding card and Optolink board Power supply unit board Part No 7823 991 The power...

Страница 95: ...Optolink laptop interface Emissions test switch Emissions test switch for flue gas measurements with the boiler operated with constant boiler water temperature for a short time The burner is switched...

Страница 96: ...Fuses Heating system switch TEST button LON communication module Part No 7172 173 Accessory A Control unit or Vitocom 300 B Connecting cable for data transfer between the control units accessory C Ter...

Страница 97: ...e CT3 1040 7820 144 Vitocrossal 200 Type CM2 1041 7820 145 Fuses F1 6 3 A 250 V for protecting the control elements pumps and electronics Mounting location see drawing Part No 7404 365 F2 6 3 A 250 V...

Страница 98: ...has fallen approx 15 K below the shut down temperature Central fastening M 10 capillary 3600 mm long Tests Functional check via T V TEST button Adjustable high limit Part No 7817 531 The adjustable h...

Страница 99: ...t cores from the sensor if actual values deviate severely from the curve repeat the sensor measurement and compare with the actual temperature 4 Depending on the result replace cable or outdoor temper...

Страница 100: ...outdoor temperature sensor housing 1 Remove the cap 2 Mount the bottom part of the sensor housing 3 Pull the sensor wire through the opening in the terminal compartment and through the strain relief...

Страница 101: ...ntly check installation and if necessary replace sensor Technical data Degree of protection IP 32 Ambient temperature During operation boiler temperature sensor 0 to 130 C 32 to 266 F DHW tank tempera...

Страница 102: ...the plug Supply temperature in C F Resistance in 30 86 40 104 60 140 569 592 643 3 Compare the value measured with the current temperature If the value differs significantly check installation and if...

Страница 103: ...2 of the plug Return temperature in C F Resistance in 30 86 40 104 60 140 569 592 643 3 Compare the value measured with the current temperature If the value differs significantly check installation an...

Страница 104: ...e boiler control 2 Measure resistance of sensor at terminals 1 and 2 of the plug Flue gas temperature in C F Resistance in 180 176 160 320 200 392 650 800 880 3 Compare the value measured with the act...

Страница 105: ...ical connections of the mixing valve motor are as required for the following installation examples do not change The electrical connections of the mixing valve motor must be changed for the following...

Страница 106: ...ature Heating program Economy and party mode Function changes can be made via coding addresses A0 b0 to b9 C0 to C2 E1 and E2 see coding overview A Wall mounting base for Vitotrol 200 B To control uni...

Страница 107: ...ting circuit selection button When connecting a separate room temperature sensor set DIP switch S6 3 to ON Specification Power supply via 145 KM BUS Safety class III Protection IP 30 Permiss ambient t...

Страница 108: ...mperature Heating program Holiday program Switching times Economy and party mode Function changes can be made via coding addresses A0 b0 to b9 C0 to C2 E1 and E2 see coding overview A Wall mounting ba...

Страница 109: ...hen connecting a separate room temperature sensor set DIP switch S30 3 to ON Specification Power supply via 145 KM BUS Safety class III Protection IP 30 Permiss ambient temperature In use 0 to 40 C 32...

Страница 110: ...rol unit install a terminal box on site Version 1 A To control unit B Terminal box on site C Vitotrol 1 D Vitotrol 2 E Vitotrol 3 On site connection via terminal box Connect in accordance with the dia...

Страница 111: ...Vitotrol 3 F Further BUS participants If several remote control units and additional KM BUS participants are connected make the connections via a terminal box on site as shown in the diagram The total...

Страница 112: ...Two core cable max 35 m 115 ft long with a conductor cross section of 1 5 mm2 copper Set coding switch 3 on the rear of the top part of the remote control case to ON see page 107 Check room temperatur...

Страница 113: ...nection aVF 0 to 10VDC input aVG KM BUS to control unit aBJ Potential free output contact A Power supply provide disconnect if required by code B DIP switch see table DIP switch Function 1 to 3 1 2 3...

Страница 114: ...ing Address Value Possible change System type 00 1 System circuit A1 without domestic hot water heating 00 12 System circuit A1 with domestic hot water heating without domestic hot water heating 00 13...

Страница 115: ...perating time variable from 5 to 199 seconds Participant number 77 1 LON participant number 77 1 to 77 99 LON participant number selectable from 1 to 99 Please note Each number may be assigned once on...

Страница 116: ...valve circuits M2 and M3 1 Press w and rw simultaneously for approx 2 seconds press to confirm Access coding level 2 2 Call up the required coding address with the or button press to confirm 3 Change...

Страница 117: ...ing valve circuit M2 with domestic hot water heating 00 15 System circuit A1 and mixing valve circuit M2 without domestic hot water heating 00 16 System circuit A1 and mixing valve circuit M2 with dom...

Страница 118: ...ing differential i e the burner operating time is varied in relation to the actual heat demand Burner Burner Burner Set point Set point Set point Low heat demand Medium heat demand High heat demand Ti...

Страница 119: ...rm Control effective for mixing valve of heating circuits 0d 2 Without function 13 1 Boiler burner Switch off differential The burner is switched off 13 0 Without switch off differential burner The bu...

Страница 120: ...y appears address is set automatically and must be reset manually after maintenance has been carried out 26 0 Boiler burner 2 stage Fuel consumption of burner 1st stage not metered if 26 0 and 27 0 ar...

Страница 121: ...F 60 Run on time adjustable from 1 to 60 minutes 54 0 General Without solar control 54 1 With Vitosolic 100 automatically recognized 54 2 With Vitosolic 200 automatically recognized 55 0 DHW DHW tank...

Страница 122: ...on pump with 62 0 Circulation pump without run on time p p run on time of 10 minutes 62 1 to 62 15 Run on time variable from 1 to 15 minutes 64 2 DHW During the party mode Continuous domestic hot 64 0...

Страница 123: ...nt only on preset time program 71 0 DHW DHW circulation pump ON according to preset time 71 1 DHW circulation pump OFF during domestic hot water heating to the 1st set point value g p program 71 2 DHW...

Страница 124: ...ut time delay y for fault message 80 2 to 80 199 Time delay adjustable between 10 and 995 seconds 1 increment 5 seconds 81 1 General Automatic resetting to summer winter time 81 0 Manual resetting to...

Страница 125: ...onstant for calculating the outdoor temperature change 21 3 hours 90 0 to 90 199 Fast matching lower values or slow matching higher values of the supply temperature to the change in the outdoor temper...

Страница 126: ...active 99 3 Without function 99 4 Close mixing valve mixing valve circuit M3 99 5 Without function 99 6 Close mixing valve mixing valve circuits M2 and M3 99 7 Without function 99 8 External disable...

Страница 127: ...alve mixing valve circuit g pump and mixing valve A2 1 1 The mixing valve is closed and the heating circuit pump is ON when the DHW tank is being heated A2 3 1 to A2 15 Reduced DHW tank priority over...

Страница 128: ...and heating circuit pump are switched off and the mixing valve is closed A7 0 Mixing valve circuit Without mixing valve energy saving function A7 1 With mixing valve energy saving function extended h...

Страница 129: ...er circuit In conjunction with remote control and for the heating b2 0 Without room influence circuit mixing valve circuit control and for the heating circuit operation with room temperature control m...

Страница 130: ...on with the room temperature sensor switched on or with pure room temperature dependent control The desired room temperature value must be increased by at least 2 K by Pressing the party button Switch...

Страница 131: ...Mixing valve circuit with 4 way mixing valve C4 0 Mixing valve circuit with 3 way mixing valve circuit y g C4 2 Special case 1 C4 3 Special case 2 C5 20 Boiler circuit mixing valve circuit Electronic...

Страница 132: ...Max supply temperature reached Operating status and outdoor temperature on handing over the installation Slab curing function selectable on basis of four temperature time curves see page 134 Please n...

Страница 133: ...oding address A3 F9 10 to F9 60 Temperature limit adjustable from 10 to 60 C FA 20 Boiler circuit mixing valve circuit Raising of the supply temperature when switching reduced to normal room temperatu...

Страница 134: ...tinued Slab curing function diagrams Temperature time curve 1 F1 1 Supply temperature C Days Temperature time curve 2 F1 2 Supply temperature C Days Temperature time curve 3 F1 3 Supply temperature C...

Страница 135: ...voltage motherboard A3 120 V motherboard A4 Electronics board for mixing valve extension A6 Programming unit A7 Optolink emissions test switch board A8 Electronics board A9 Boiler coding card A10 LON...

Страница 136: ...Additional information 136 Wiring diagram continued Low voltage motherboard 5285 941 01 A11 A8 A9 A6 A2 A10 A 5 A 7 34 pole...

Страница 137: ...ank loading system accessory aG Flue gas temperature sensor accessory aJA Temperature sensor of Therm Control or temperature sensor T1 aJB Temperature sensor T2 aVD Connection of external equipment aV...

Страница 138: ...Additional information 138 Wiring diagram continued 120 V motherboard 5285 941 01 A11 A3 float ing ON ON...

Страница 139: ...r installed on site gS Mixing valve motor for return temperature control or 3 way mixing valve for DHW tank loading system l Burner 2nd stage modulating aB External equipment a External safety equipme...

Страница 140: ...Additional information 140 Wiring diagram Mixing valve extension circuit board Supply temperature sensors s Heating circuit pumps gS Mixing valve motors K1 K6 Relays 5285 941 01 A4 A1...

Страница 141: ...cable 14 pole 024 Fuse holder cover 025 Fuse holder 030 Fixed high limit 3510mm 031 Adjustable high limit 037 Switch 1 pole FHL test 038 Switch 2 pole power on off 040 Sensor 1 for outdoor temperature...

Страница 142: ...for Vitorond 200 063 Coding plug for Vitocrossal 300 080 Installation Service Instructions 081 Operating Instructions 082 Parts List Rating plate 1 A 16 digit bar coded serial no is printed on the fr...

Страница 143: ...143 5285 941 01...

Страница 144: ...144 5285 941 01...

Страница 145: ...145 5285 941 01...

Страница 146: ...732 0590 www viessmann us com info viessmann us com 146 Quick Reference C F 40 40 35 31 25 13 20 4 18 0 16 3 14 7 12 10 10 14 9 16 8 18 7 19 6 21 5 23 4 25 3 27 2 28 1 30 0 32 1 34 2 36 3 37 4 39 5 41...

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