Viessmann VITOCAL 300 Installation And Service Instructions Manual
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Viessmann VITOCAL 300 Installation And Service Instructions Manual

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VIESMANN
Installation and service
instructions
for contractors
Vitocal 300
Vitocal 300, type BWC and WWC
For applicability, see the last page
VITOCAL 300
Please keep safe.
5592 901 GB
6/2007

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Summary of Contents for Viessmann VITOCAL 300

  • Page 1 VIESMANN Installation and service instructions for contractors Vitocal 300 Vitocal 300, type BWC and WWC For applicability, see the last page VITOCAL 300 Please keep safe. 5592 901 GB 6/2007...

  • Page 2: Safety Instructions

    Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and material losses. Safety instructions explained & the Code of Practice of relevant trade associations, Danger & all current safety regulations as This symbol warns against the defined by DIN, EN, DVGW, TRGI, risk of injury.
  • Page 3 Instal- charge static loads. ling non-authorised compo- nents and non-approved modifications/conversion can compromise safety and may invalidate our warranty. For replacements, use only ori- ginal spare parts from Viessmann or those which are approved by Viessmann.

  • Page 4: Table Of Contents

    Index Index Preparing for installation Positioning ....................Overview of possible system versions ............Function description for the individual system versions........ 11 System design on the primary side .............. 14 System version 1 ..................18 System version 2 ..................21 System version 3 ..................24 Additions to the system versions ..............
  • Page 5 Index Index (cont.) Language ....................80 Average time; outside temperature.............. 80 Heating limit < T room (heating limit temperature) ........80 Temperature limit for reduced temperature mode......... 81 Frost protection temperature ............... 82 Primary pump ON for natural cooling ............82 Heat pump control settings Maximum flow temperature .................
  • Page 6 Index Index (cont.) Stop optimisation ..................98 DHW auxiliary function................98 Second set DHW temperature ..............98 Second DHW temperature sensor, bottom........... 98 Excess reaction ..................99 DHW priority ....................99 Maximum DHW runtime ................100 Maximum DHW interruption ................ 100 Temperature rise per hour ................
  • Page 7 Index Index (cont.) Buffer cylinder .................... 115 Buffer cylinder program................115 Fixed temperature ..................115 Hysteresis temperature................116 Maximum temperature ................116 Stop optimisation ..................117 Excess reaction ..................117 Second temperature sensor ................ 117 Control settings "natural cooling" When are these settings required? .............. 118 "Natural cooling circuit"...
  • Page 8 Commissioning/service reports Hydraulic parameter reports................ 142 Reports of control parameters ..............143 Specification type BWC ................149 Specification type WWC ................151 Appendix Order to commission the Vitocal 300 ............153 Certificates Declaration of conformity ................154 Keyword index ..................155...

  • Page 9: Preparing For Installation

    The heating system installation also options for each system design). applies to Viessmann heat pumps type WWS (comprising type BWC and a conversion kit), giving due consid- eration to type-specific features.
  • Page 10 The Vitocal 300 responds only to external demand signals. All exter- nal sensors (e.g. room temperature sensors) and relay outputs are disabled. When a demand is issued by an external signal, primary pump, sec- ondary pump and compressor start (prerequisite: Activation condi-...

  • Page 11: Function Description For The Individual System Versions

    Preparing for installation Function description for the individual system versions Heating circuit Heat pumps require a minimum heat- This safeguards a minimum volume of ing water flow rate. Ensure that the circulating water, even when the ther- values specified in the relevant data- mostatic valves are closed.
  • Page 12 Preparing for installation Function description for the individual system . . . (cont.) Heating water buffer cylinder Where a heating water buffer cylinder is installed, the secondary side flow rate should be greater than the flow rate at the heating circuit side. Where a heating water buffer cylinder is used with only one flow and return connec- tion respectively, this is an absolute...
  • Page 13 Preparing for installation Function description for the individual system . . . (cont.) DHW heating DHW heating takes priority. The installation of an immersion hea- The heat demand is issued via the top ter is possible. This would be con- cylinder temperature sensor.

  • Page 14: System Design On The Primary Side

    Brine/water heat pump Required devices Pos. Description Qty. Heat pump Vitocal 300, type BWC, with integral primary pump 2, secondary pump 3 and electric heater 4 Ground probe or ground collector min. 1 Brine distributor for ground probes or collectors...
  • Page 15 Preparing for installation System design on the primary side (cont.) Connection diagram 8 Inserting the jumper or connecting 9 Optional connection of a power- the brine pressure switch OFF conversion kit...

  • Page 16: Water/Water Heat Pump

    Preparing for installation System design on the primary side (cont.) Water/water heat pump A Flow direction of the groundwater B Intermediate circuit Please note Operating the intermediate circuit without antifreeze can result in equip- ment damage. Fill the intermediate circuit with heat transfer medium (frost protection down to –15 °C).
  • Page 17 Required devices Pos. Description Qty. Heat pump Vitocal 300, type WWC = type BWC plus conversion kit (with frost stat 2 and flow switch 3) with integral intermediate circuit pump 4, secondary pump 5 and instantaneous heating water heater 6...

  • Page 18: System Version 1

    Preparing for installation System version 1 One direct heating circuit, DHW heating and natural cooling at the heating circuit Note Select system design 2 at the control unit. A Connection at the primary side B DHW cylinder connection (see (see from page 14) from page 30) D Minimum clearance 500 mm...
  • Page 19 Preparing for installation System version 1 (cont.) Connection diagram | Open ~ CLOSE...
  • Page 20 14 and switch the temperature limiter in series. Required devices Pos. Description Qty. Vitocal 300 heat pump Three-way diverter valve, heating/DHW Diaphragm expansion vessel Outside temperature sensor Room temperature sensor of the direct heating circuit Overflow valve...

  • Page 21: System Version 2

    Preparing for installation System version 2 One direct heating circuit, one heating circuit with mixer, DHW heating, heating water buffer cylinder and natural cool- ing for the heating circuit with mixer Note Select system design 6 at the control unit. A Connection at the primary side B DHW cylinder connection (see (see from page 14)
  • Page 22 Preparing for installation System version 2 (cont.) Connection diagram | Open ~ CLOSE...
  • Page 23 Required devices Pos. Description Qty. Vitocal 300 heat pump Three-way diverter valve, heating/DHW Diaphragm expansion vessel Outside temperature sensor Room temperature sensor of the direct heating circuit Room temperature sensor of the heating circuit with mixer 1...

  • Page 24: System Version 3

    Preparing for installation System version 3 One direct heating circuit, one heating circuit with mixer, DHW heating, low loss header, external heat source and nat- ural cooling at the heating circuit with mixer Note Select system design 6 at the control unit. A Connection at the primary side C External heat source (e.g.
  • Page 25 Preparing for installation System version 3 (cont.) D Minimum clearance 500 mm E The flow rate on the heating cir- cuit side must be greater than the flow rate on the secondary side of the heat pump...
  • Page 26 Preparing for installation System version 3 (cont.) Connection diagram | Open A External heat source ~ CLOSE...
  • Page 27 Required devices Pos. Description Qty. Vitocal 300 heat pump Three-way diverter valve, heating/DHW Diaphragm expansion vessel Outside temperature sensor Room temperature sensor of the direct heating circuit Room temperature sensor of the heating circuit with mixer 1...

  • Page 28: Additions To The System Versions

    Preparing for installation System version 3 (cont.) Pos. Description Qty. Circulation pump (primary cooling circuit pump) Two-way motorised ball valve Natural cooling extension kit Additions to the system versions Separate cooling circuit for natural cooling A Connection on the primary side D Minimum clearance 500 mm E Connections on the heating circuit (see from page 14)
  • Page 29 Preparing for installation Additions to the system versions (cont.) Connection diagram | Open ~ CLOSE A Power supply from the control panel (230 V) Required devices Pos. Description Qty. Contact humidistat Vitotrans plate-type heat exchanger Frost stat Circulation pump (primary cooling circuit pump) Mixer-3 (primary cooling circuit) Two-way motorised ball valve Circulation pump (secondary cooling circuit pump)
  • Page 30 Preparing for installation Additions to the system versions (cont.) Direct DHW heating from the heat pump KW Cold water WW DHW...
  • Page 31 Preparing for installation Additions to the system versions (cont.) Connection diagram | Open ~ CLOSE K Contactor relay (on site) Required devices Pos. Description Qty. Three-way diverter valve, heating/DHW Vitocell-V 100, type CVW (390 litre capacity) Cylinder temperature sensor, top Spring-loaded check valve Immersion heater EHO (installation either at the top or bottom)

  • Page 32: Installation Sequence

    Installation sequence Overview of electrical connections Make all electrical connections at the terminals and secure the cables at the cable harness. Never run LV cables immediately next to 230/400 V cables. A Heat pump (open) B Heat pump terminal strip (230/400 V connections inside the open control panel) C Electronics PCB...

  • Page 33: Three-Way Diverter Valve, Heating/Dhw

    Room temperature sensor (part no. 9532 653) (cont.) Connection Lead: 2 x 0.5 mm , max. 30 m long, copper. A Terminal strip, LV connections Vitocal 300 B Terminal strip, room temperature sensor OF 11 Application Terminal codes Sensor designation (see page 130) Room temperature sen- X1.14...
  • Page 34 Installation sequence Three-way diverter valve, heating/DHW (cont.) Connection with spring-loaded return: N Neutral conductor ? Earth conductor 32 Control signal "OPEN"| without spring-loaded return: N Neutral conductor ? Earth conductor 32 Control signal "OPEN"| 33 Control signal "CLOSE"~ A Terminal strip, heat pump B Three-way diverter valve...

  • Page 35: Central Fault Message

    B Terminal strip, Vitocal 300 C alternative Primary pump (only for type WWC) For the Vitocal 300, type WWC, the The control signal for the contactor integral pump provides the circulation (on-site) can be drawn from contactor in the intermediate circuit.

  • Page 36: Information Regarding The Hydraulic Connection

    Installation sequence Primary pump (only for type WWC) (cont.) A PCB Vitocal 300 K32 Contactor, intermediate circuit B Control panel Vitocal 300 pump (integrated into the control C On-site installation panel) D Primary pump (on-site) K40 on-site contactors for the primary...
  • Page 37 Installation sequence Information regarding the hydraulic connection (cont.) & Expansion vessel: The blow off and drain pipes should Use only a diaphragm expansion terminate in a container capable of vessel suitable for this purpose. The holding the max. possible expansion expansion vessel must be approved volume.

  • Page 38: Connection On The Primary Side

    Installation sequence Connection on the primary side Route and connect the flow and return lines. A Primary return (brine or ground- water) B Primary flow (brine or ground- water) Vitocal 300 Type BWC/WWC Primary flow 1" 1" 1" 1¼" Primary return 1"...

  • Page 39: Connections On The Heating Circuit Side

    Installation sequence Connections on the heating circuit side Thoroughly flush the heating system (particularly when connecting to an existing system) and connect the flow and return lines. A Heating water return, R1" B Heating water flow, R1" C Secondary pump D Instantaneous heating water hea- Power supply Danger...
  • Page 40 Installation sequence Power supply (cont.) 1. Provide the power connection (3/N/ PE ∼ 400 V) via a permanent sup- ply. Cable : min. 5 x 2.5 mm 2. Route the power cable from the back into the heat pump and con- nect it in accordance with the dia- gram.

  • Page 41: Commissioning, Inspection, Maintenance

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance For further information regarding the individual steps, see the page indicated Commissioning steps Inspection steps Maintenance steps Page • • • 1. General information ............. •...
  • Page 42 Commissioning, inspection, maintenance Steps - commissioning, inspection and . . . (cont.) Commissioning steps Inspection steps Maintenance steps Page • 21. Checking the external heating circuit pumps ... . • 22.

  • Page 43: Further Details Regarding The Individual Steps

    Commissioning, inspection, maintenance Further details regarding the individual steps General information For some steps, the technical service Observe the operating instruc- level of the control unit must be tions during the commissioning enabled (see page 76). of the heat pump. Checking the refrigerant circuit for leaks 1.

  • Page 44: Only For Type Bwc: Filling The Primary Circuit And Checking The Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note 3. Top up with water, until the filling Only use anti-corrosion agents that pressure exceeds the inlet pres- have been approved for heat pumps sure of the diaphragm expansion with DHW heating via single-walled vessel.

  • Page 45: Only For Type Wwc: Filling The Primary And The Intermediate Circuit And Checking The Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Only for type WWC: Filling the primary and the intermediate circuit and checking the pressure 1. Only for commissioning: 4. Check the pressure of the inter- Flush the primary and the inter- mediate circuit.
  • Page 46 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 2. If the adjacent display appears: Continue with point 4. 3. If the adjacent display appears (fault messages present): Press the key marked in the dia- gram. & Press the following keys one after the other: "v", "O"...
  • Page 47 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Select language: Select area marked A in dia- & gram using y. Press ?. & & Select the required language using y. & Confirm language selection using Press O and n several times &...
  • Page 48 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Select the required system design (0 to 6 or F) with key >. Note The selected system design is shown in the display area marked Select the installed auxiliary components or functions Note 2.

  • Page 49: Checking The Sensor Connections

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Confirm your choice by pressing 4. Pressing "CONTINUE" again saves "CONTINUE" (component selected the system configuration once all or "ignored") and continue to the available components for the spe- next available component for pos- cific system design have either sible selection.

  • Page 50: Checking The Primary And Secondary Pumps

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Terminate the test program with "BACK". Checking the primary and secondary pumps 1. Start the test program: 3. Start the compressor by pressing "ON". Menu item & "System settings" 4.

  • Page 51: Testing The Three-Way Valve "Heating/Dhw", Heat Pump And Cylinder Heating

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 7. Terminate the test program with "BACK". Testing the three-way valve "Heating/DHW", heat pump and cylinder heating Testing the three-way valve and heat pump 1. Start the test program: 3. Check the following temperatures and record them in the service Menu item report from page 143:...

  • Page 52: Checking The Direction Of Rotation Of The Mixer Motor

    (cont.) 3. Terminate the test program with "BACK". Checking the direction of rotation of the mixer motor Mixer motor for Viessmann mixer DN 20 to 50 (welding version – Part no. 7450 657, accessory) Rated voltage: 230 V∼ Rated frequency:...
  • Page 53 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) A Terminal strip, heat pump | Mixer open ~ Mixer close B Mixer motor for the primary cool- ing circuit (mixer "natural cooling") or the external heat source C Mixer motor for heating circuit with mixer (heating circuit 2) Delivered condition The direction of rotation of the mixer...

  • Page 54: Checking The Antifreeze Concentration In The Brine Circuit (Type Bwc And Wwc With Intermediate Circuit)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the antifreeze concentration in the brine circuit (type BWC and WWC with intermediate circuit) Check the antifreeze concentration The brine and the intermediate circuit and record it in the service report from must be protected against frost down to −15 °C.

  • Page 55: Checking The Refrigerant Circuit

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) & Check the flow switch and replace it, if required Checking the refrigerant circuit Please note 1. Observe the sight glass in the Work on the refrigerant circuit refrigerant circuit: can result in equipment No bubbles >...

  • Page 56: Checking The Heat Pump Casing

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the heat pump casing Seal any holes that might have been drilled into the casing (cable entries) with permanently flexible sealant, to prevent condensate forming in the heat pump interior.

  • Page 57: Troubleshooting

    Troubleshooting Control unit diagnostics Programming unit overview A Display D Operating mode selector B Rotary selector "Reduced room E Menu keys F Programming unit flap temperature" C Rotary selector "Standard room temperature" Fault messages Internal faults are captured, displayed & Messages with lower priority will be and saved by the device.

  • Page 58: Troubleshooting Control Unit Diagnostics

    Troubleshooting Control unit diagnostics (cont.) Acknowledging fault messages Any active fault messages will be dis- Acknowledged faults remain in the played after opening the programming list, until the control unit has recog- unit flap. These can be acknowl- nised that the cause of the fault has edged, as soon as their cause has been removed.
  • Page 59 Troubleshooting Control unit diagnostics (cont.) Skipping fault messages To enable adjustments/scans at the 2. Press "BACK". control unit: The main menu will be displayed. You can now make adjustments 1. Open the programming unit flap. All and scans. current fault messages will be dis- played.
  • Page 60 Troubleshooting Control unit diagnostics (cont.) Fault messages Cause Measures Flow sensor Lead broken Check the terminals; replace HC 2 the sensor, if required Flow sensor NC Room tempera- ture sensor NC DHW sensor top Short circuit Check the sensor; replace if required DHW sensor bot- DHW sensor top...
  • Page 61 Troubleshooting Control unit diagnostics (cont.) Fault messages Cause Measures Heat pump Heat pump or circula- Check the heat pump, the tion pump of the pri- primary pump and the sec- mary or secondary ondary pump (see page 51), circuit faulty and replace, if required.
  • Page 62 Troubleshooting Control unit diagnostics (cont.) Fault messages Cause Measures Power-OFF con- Power-OFF contact en- Check the Power-OFF con- tact abled longer than 12 h version kit (accessory) and replace it, if required Safety chain Fault at one of the con- Check the external safety nected components chain, connected compo-...
  • Page 63 Troubleshooting Control unit diagnostics (cont.) Fault messages Cause Measures Regulated HP 1 Air inside the heating Vent the heating circuit circuit Secondary pump or Check the secondary pump heating circuit pump or heating circuit pump stalled Heating circuit con- Flush the heating circuit taminated Room tempera- Short circuit...

  • Page 64: Diagnosis

    Troubleshooting Diagnosis Measures if the room temperature is constantly too low Carry out the following steps in the 4. Vent the heating circuit. order listed here to remedy the pro- blem. 5. Hydraulically balance the con- nected heating circuit(s). 1. Increase the set room temperature for standard operation (see operat- 6.

  • Page 65: Control Unit Settings

    Control unit settings Menu structure overview – Main menu A See page 66 C see pages 68 to 70 B See page 67 D see pages 71 to 75...

  • Page 66: Menu Structure Overview - Information

    Control unit settings Menu structure overview – Information Main menu > Information A See page 67...
  • Page 67 Control unit settings Menu structure overview – Information (cont.) Main menu > Information A See page 66...

  • Page 68: Menu Structure Overview - Programming

    Control unit settings Menu structure overview – Programming Main menu > Device settings > Programming A See page 69 B See page 70...
  • Page 69 Control unit settings Menu structure overview – Programming (cont.) Main menu > System settings > Programming A See page 68 B See page 70...
  • Page 70 Control unit settings Menu structure overview – Programming (cont.) Main menu > System settings > Programming A See page 68 B See page 69...

  • Page 71: Menu Structure Overview - Technical Service Level

    Control unit settings Menu structure overview – Technical service level Main menu > Device settings > Technical service level A see pages 74 and 75 B see pages 72 and 73...
  • Page 72 Control unit settings Menu structure overview – Technical service level (cont.) Main menu > System Settings > Technical service level A See page 71 B see pages 74 and 75 C See page 73...
  • Page 73 Control unit settings Menu structure overview – Technical service level (cont.) Main menu > System settings > Technical service level A See page 71 B see pages 74 and 75 C See page 72...
  • Page 74 Control unit settings Menu structure overview – Technical service level (cont.) Main menu > System settings > Technical service level A see pages 71 to 73 B See page 75...
  • Page 75 Control unit settings Menu structure overview – Technical service level (cont.) Main menu > Device settings > Technical service level A see pages 71 to 73...

  • Page 76: Control Settings Made By Contractors

    Parameters that are explained in the This section has the header head- operating instructions of the line "Control settings". Vitocal 300, are not covered here. & The settings in the "Program" menu However, they are listed in the order (see also pages 68 and 69) are in which they appear in the control described on pages 80 to 125.

  • Page 77: Adjusting Sensor Temperatures

    Control unit settings Enabling the technical service level (cont.) 2. Enter code: Menu item & "System settings" & "Access rights" & Enter code: SERVICE press each 1 x & 2 x "OK" Note Access to the technical service level is blocked with the program- ming unit flap closed.

  • Page 78: Checking Signal Inputs

    Control unit settings Checking signal inputs The system can be checked using this Any changes into the "ON" condition menu. For example, in case of a fault, are saved and will be displayed in the you can check whether the cause has menu "Information"...

  • Page 79: Selecting A Language

    Control unit settings Controlling the relays and mixers manually (cont.) "Switch relay" sub-menu Note Menu item Here, the relays can be activated at & "System settings" random. & "Tech. service level" Some actuators may still be switched & "Manual control" ON when this menu is called up.

  • Page 80: System Definition Control Settings System Design

    System definition control settings System design In addition to the procedure described Access under "System configuration" (see & "System settings" page 47), the system design can also & "Program" be amended here or additional com- & "System definition" ponents and/or functions can be &...

  • Page 81: Temperature Limit For Reduced Temperature Mode

    System definition control settings Heating limit < T room (heating limit temperature) (cont.) The selected set room temperature is If the outside temperature exceeds 20 °C, the value entered under "Heat. 18 °C, central heating is adjusted limit < T room" is 4.0 K. because of the specified hysteresis of Central heating commences if the 2 K.

  • Page 82: Frost Protection Temperature

    System definition control settings Temperature limit for reduced temperature mode (cont.) Standard setting -30 K Setting range -30 to +30 °C Frost protection temperature The equipment enters reduced mode to protect itself against frost, as soon as the average outside temperature drops below this value.
  • Page 83 System definition control settings Primary pump ON for natural cooling (cont.) Standard setting Access Setting range Yes/No & "System settings" & "Program" & "System definition" & "Prim pump ON at NC" (YES/NO)

  • Page 84: Heat Pump Control Settings

    Heat pump control settings Maximum flow temperature Setting the maximum heat pump flow Access temperature. & "System settings" & "Program" Please note & "Heat pump" Avoiding device damage. & "max. flow temp." (1/!) Never set the maximum flow temperature higher than 55 Standard setting 55 °C °C.

  • Page 85: Min. T. Primary In/Hysteresis T Primary

    Heat pump control settings min. T. primary in/Hysteresis T primary This setting determines the control Access range for starting and stopping the & "System settings" heat pump. The shutdown point of the & "Program" heat pump is determined by the mini- &...

  • Page 86: Min. Compressor Off

    Heat pump control settings Minimum runtime (cont.) Standard setting 2:00 min Setting range 2:00 to 30:00 Min. compressor OFF Setting the time that the compressor Access remains off before it can restart. This & "System settings" protects the heat pump from overload &...

  • Page 87: Optimum Runtime

    Heat pump control settings Flow, primary/secondary pump (cont.) Access & "System settings" & "Program" & "Heat pump" & "Flow primary pump" "Flow secondary pump" (P/ Standard setting 2:00 min Setting range 00:10 to 16:40 A Heating command B Primary pump C Secondary pump D Compressor E Start delay...
  • Page 88 Heat pump control settings Optimum runtime (cont.) Access & "System settings" & "Program" & "Heat pump" & "Optimal op. time" (P/Q) Standard setting 2:00 h Setting range 00:20 to 18:00 A Optimum operating range B Icing up of the probe C Optimum runtime...

  • Page 89: Electric Heater Control Settings

    Electric heater control settings Power-OFF This setting determines, whether the Access power supply utility can interrupt the & "System settings" supply to the electric heater via a & "Program" special control device (setting: & "Electric heating" "YES"). However, this requires that &...

  • Page 90: Maximum Flow Temperature

    Electric heater control settings Maximum flow temperature Determines the maximum flow tem- & "Electric heating" perature provided by the electric hea- & "max. flow temp." (1/!) ter. Standard setting 65 °C Access Setting range 5 to 75 °C & "System settings" &...

  • Page 91: Maximum Stage; Electric Heater

    Electric heater control settings Electric heater threshold (cont.) Standard setting 300 K · min Access Setting range 10 to & "System settings" 30000 K · min & "Program" & "Electric heating" & "Threshold e-heating" (P/Q) Maximum stage; electric heater This setting defines the maximum out- &...

  • Page 92: Stage For Power-Off

    Electric heater control settings Failure OFF stage (cont.) Standard setting 1 (3 kW) Access Setting range 1 to 3 & "System settings" & "Program" & "Electric heating" & "Stage Power OFF" (l/m) Stage for power-OFF Setting of the output stage for the Access electric heater to which the power- &...

  • Page 93: Internal Hydraulics Control Settings

    Internal hydraulics control settings Heat pump for drying buildings This setting determines whether the Access heat pump plus the electric heater are & "System settings" to be used for drying the building. & "Program" Set this function to "NO" if the heat &...

  • Page 94: External Heat Source For Drying Buildings

    Internal hydraulics control settings External heat source for drying buildings If an external heat source is present, it & "Internal hydraulic" can be used in conjunction with the & "Ext. HS for drying buildings" electric heater for drying buildings (YES/NO) using this setting.

  • Page 95: Dhw Control Unit Settings

    DHW control unit settings DHW cylinder temperature Operating instructions Vitocal 300 DHW program temperature Operating instructions Vitocal 300 DHW circulation pump program Operating instructions Vitocal 300 Operating mode Determining the DHW cylinder operating mode. Setting Function Standby Frost protection only...

  • Page 96: Dhw Cylinder Maximum

    DHW control unit settings DHW cylinder maximum Setting of the maximum temperature Access inside the DHW cylinder. & "System settings" Renewed heating will be prevented & "Program" after this temperature has been & "DHW" reached, until the temperature has & "HW buf.
  • Page 97 DHW control unit settings Hysteresis DHW electric heater/hysteresis (cont.) Note The value selected for "Hysteresis" should be higher than the expected temperature drop due to heat losses in a single night (approx. 5 K). A lower value for "Hyst. HW e-heat- ing"...

  • Page 98: Start Optimisation

    DHW control unit settings Start optimisation Operating instructions Vitocal 300 Stop optimisation Operating instructions Vitocal 300 DHW auxiliary function Operating instructions Vitocal 300 Second set DHW temperature Operating instructions Vitocal 300 Second DHW temperature sensor, bottom The DHW cylinder can be used more...

  • Page 99: Excess Reaction

    DHW tem- & "Program" perature (see operating instructions & "DHW" Vitocal 300) has been reached or the & "DHW priority" ("YES"/"NO") period selected under "max. DHW runtime" (see page 99) has expired. Standard setting Only then will the heating circuit be...

  • Page 100: Maximum Dhw Runtime

    18:00 h until the selected DHW cylinder tem- perature has been reached (see oper- ating instructions Vitocal 300). Maximum DHW interruption This value determines the period, dur- Access ing which the heating circuit can be &...

  • Page 101: E Heater Rod (Immersion Heater Inside The Dhw Cylinder)

    DHW control unit settings Temperature rise per hour (cont.) Standard setting 26 K/h Access Setting range 0 to 100 K/h & "System settings" & "Program" & "DHW" & "T rise/hour " (l/m) E heater rod (immersion heater inside the DHW cylinder) "Yes"...

  • Page 102: Heating Circuit Control Settings

    Heating circuit control settings Standard temperature Operating instructions Vitocal 300, section "Setting temperatures" Reduced temperature Operating instructions Vitocal 300, section "Setting temperatures" Temperature program, heating circuit Operating instructions Vitocal 300 Remote control This parameter enables the utilisation & "Heating circuit"...

  • Page 103: Maximum Flow Temperature

    Heating circuit control settings Operating mode (cont.) Setting Function Standby Frost protection of the device Reduced Constant reduced room temperature Standard Constant standard room temperature Fixed value Operation as fixed value controller Rotary se- The operating mode is selected via the operating mode selector lector (standard setting) External...

  • Page 104: Dhw During Party Mode

    Access when party mode has been enabled & "System settings" (see operating instructions & "Program" Vitocal 300), the DHW cylinder should & "Heating circuit" be heated up first (setting "Yes") or & "Heating circuit 1/2" whether the system should immedi- &...

  • Page 105: Room Temperature Sensor

    Heating circuit control settings Excess reaction (cont.) Standard setting & "Heating circuit 1/2" Setting range 0 to 2 & "Reaction overplus " (l/m) Room temperature sensor Any installed room temperature sen- & "Heating circuit" sor must be enabled for the corre- &...

  • Page 106: Start Optimisation

    "Heating circuit" Standard setting Setting range 0 to 3 Start optimisation Operating instructions Vitocal 300 Maximum flow temperature correction Prerequisites: Room temperature sensor installed and enabled (see page 105). Setting the maximum value, by which the flow temperature can be modified...

  • Page 107: Room Temperature Control

    "Yes" for room temperature control. Setting the slope and level of the heating curve Operating instructions Vitocal 300, section "Modifying the heating characteristics of the heating circuits" Integral room temperature controller Prerequisite: "Room temperature Access controller"...

  • Page 108: Excessive Room Temperature

    Heating circuit control settings Integral room temperature controller (cont.) Standard setting Setting range 5 to 1000 Excessive room temperature Prerequisite: Room temperature sen- Access sor installed and enabled (see & "System settings" page 105). & "Program" If the temperature captured by the &...

  • Page 109: Screed Function

    Heating circuit control settings Mixer runtime (cont.) Setting range 0:05 to 4:15 min Screed function Four different temperature/time pro- Temperature/time profile 1 (to files are available for screed drying. DIN 4725) The function continues after a power failure or after the control unit has been switched OFF.

  • Page 110: Mixer Active Zone/Dead Zone

    Heating circuit control settings Screed function (cont.) Temperature/time profile 3 (to Temperature/time profile 4 ÖNORM) A Flow temperature A Flow temperature B Days B Days Access & "System settings" & "Program" & "Heating circuit" & "Heating circuit 2" & "Screed function" (l/m) Standard setting Setting range 0 to 15...

  • Page 111: Natural Cooling" (At The Heating Circuit)

    Heating circuit control settings Mixer active zone/dead zone (cont.) Access & "System settings" & "Program" & "Heating circuit" & "Heating circuit 1/2" & "Heat mixer scan band" (%/ "Heat mix non-op band" (=/ Mixer permanently closed Mixer closes (modulating) Mixer motor at zero volt Mixer opens Mixer permanently open Flow temperature...

  • Page 112: Cooling Limit > Room Temperature (Cooling Limit Temperature)

    Heating circuit control settings Cooling limit > room temperature (cooling limit temperature) Prerequisite: The natural cooling function is enabled at the heating cir- cuit (see page 111). The cooling limit temperature defines the outside temperature, exceeding of which triggers the natural cooling function.

  • Page 113: Natural Cooling (At The Heating Circuit) With Mixer

    Heating circuit control settings Level/Slope, cooling curve (cont.) Access & "System settings" & "Program" & "Heating circuit" & "Heating circuit 1/2" & "Cooling curve level" ("+LEV"/"−LEV") "Slope Cooling curve" ("+SLOPE"/"−SLOPE") A Flow temperature B Outside temperature C Cooling curve D Cooling curve with a higher level (C offset) E Cooling curve with a greater slope Standard setting...

  • Page 114: Active Zone/Dead Zone Natural Cooling Mixer

    Heating circuit control settings Active zone/dead zone natural cooling mixer For function, see page 110. & "Heating circuit 1/2" & "NC mixer scan band " Access (%/5) & "System settings" & "Program" "NC mixer dead zone" & "Heating circuit" (=/0) Standard setting Setting range "NC mixer active zone"...

  • Page 115: Buffer Cylinder Control Settings

    Setting range YES/NO the system configuration (see page 47). Buffer cylinder program Operating instructions Vitocal 300 Fixed temperature Note Access The temperature cannot be set higher & "System settings" than that selected under "Max. tem- &...

  • Page 116: Hysteresis Temperature

    Buffer cylinder control settings Hysteresis temperature This setting determines, at what deviation from the selected set tem- perature the cylinder heating starts or stops. Note If a low loss header is being used, enter a higher setting here than the one in "Flow hysteresis"...

  • Page 117: Stop Optimisation

    Stop optimisation The stop optimisation ensures that, & "Buffer storage" with switching times selected (see & "Stop optimisation" operating instructions Vitocal 300), ("YES"/"NO") the buffer cylinder is always fully heated at the end of standard mode. Standard setting Setting range YES/NO Access &...

  • Page 118: Control Settings "Natural Cooling

    "Yes" under "Device settings" > "Programming" > "Heating circuit (1/2)" for natural cooling. Room temperature Operating instructions Vitocal 300 Room temperature hysteresis This setting determines, at what deviation from the selected set room temperature the cooling function starts or stops.

  • Page 119: Room Temperature Control

    If room temperature-dependent con- & "Program" trol is required, select option "Yes" & "Natural Cooling" here. & "Room control" ("YES"/"NO") If weather-compensated control is required, select option "No" here. Standard setting Setting range YES/NO Room temperature hook-up slope Operating instructions Vitocal 300...

  • Page 120: Level/Slope, Cooling Curve

    Control settings "natural cooling" Level/Slope, cooling curve Operating instructions Vitocal 300 Integral room temperature controller Integral part of the control circuit room & "Natural Cooling" temperature for differential between & "Integral room temperature con- the set and actual temperature. troller" ([/])

  • Page 121: Cooling Mixer Runtime

    Control settings "natural cooling" Cooling mixer runtime Setting of the time required by the ser- Access vomotor of the cooling mixer for a & "System settings" complete changeover from one oper- & "Program" ating state into another (90 degree & "Natural Cooling"...

  • Page 122: Control Settings, External Heat Source

    Control settings, external heat source External heat source Should an external heat source be a & "Ext. heat source" part of the system, either set it by & "Ext. heat source" ("YES"/"NO") selecting option "Yes", or via the sys- tem configuration (see page 45). Standard setting Setting range YES/NO...

  • Page 123: Threshold, External Heat Source

    Control settings, external heat source Threshold, external heat source This setting defines the "value" (inte- Access gral comprising the duration and level & "System settings" of a deviation from the set flow tem- & "Program" perature) after which the external heat &...

  • Page 124: Mixer Temperature Limit

    Control settings, external heat source Mixer temperature limit This setting defines the temperature Access that the external heat source must & "System settings" reach before the mixer opens. This & "Program" temperature is only significant when & "Ext. heat source" the external heat source starts.

  • Page 125: Flow Temperature Excess

    Control settings, external heat source Mixer active zone/dead zone (cont.) & "Ext. heat source" & "Mixer active zone" (%/5) "Mixer dead zone" (=/0) Standard setting Setting range "Mixer active zone" 4.0 K 2.0 to 40 K "Mixer dead zone" 1.0 K 0.5 to 3.0 K Flow temperature excess This setting defines the increase in...

  • Page 126: Sensor Resistance Curves

    Components Sensor resistance curves Outside temperature sensor, room temperature sensor, return tempera- ture sensor, cylinder temperature sen- sor and flow temperature sensor. Fuse The fuse is located in a fuse base on the mounting rail inside the control panel. Fuse: 6.3 A (slow), 250 V (max.

  • Page 127: Phase Monitor

    Components Fuse (cont.) 1. Flip up the fuse top. 2. Open the top part from the side using a screwdriver. Note Opening automatically cuts the power. Phase monitor The phase monitor is located behind Over/undervoltage 15 % terminal strip X50 at the back of the Phase asymmetry 15 % connection array.
  • Page 128 Components Phase monitor (cont.) Version 1 LEDs explained & LED "Rel" illuminates green: All voltages and the rotating field (clockwise) are healthy. & LED "Ph" illuminates red: The relay has responded; the rotat- ing field is anti-clockwise. & All LED's off: One or several phases has/have dropped out.
  • Page 129 Components Phase monitor (cont.) Version 2 LEDs explained & LED "R" illuminates green: All voltages and the rotating field (clockwise) are healthy. & LED "Ph" flashes yellow: The relay has responded; the rotat- ing field is anti-clockwise. & All LED's off: One or several phases has/have dropped out.

  • Page 130: Connection And Wiring Diagrams Sensor Connections And Function

    Connection and wiring diagrams Sensor connections and function Sensor des- Function in heating mode Terminal des- ignation ignation Outside temperature 1 X1.16/2.16 Internal X1.15/2.15 Primary flow X1.24/2.24 Primary return X1.23/2.23 — X1.22/2.22 Internal X1.21/2.21 Room temperature 1 (direct heating circuit) X1.14/2.14 —...
  • Page 131 Connection and wiring diagrams Terminals inside the control panel (230 V∼) (cont.) Terminal des- Function ignation Instantaneous heating water heater stage 1 (3 kW) (contactor control) Mixer 1 OPEN (primary cooling circuit or external heat source) Mixer 1 CLOSE (primary cooling circuit or external heat source) Heating circuit pump (direct heating circuit) Cylinder primary pump Immersion heater for DHW cylinder...

  • Page 132: Power Circuit/Operating Circuit

    7 Full wave soft starter (only for ter stage 1 (3 kW) type 108 and 110) 4 Instantaneous heating water hea- 8 Vitocal 300 zP High limit safety cut-out, electric ter stage 2 (6 kW) 5 Primary pump (intermediate cir-...

  • Page 133: Connection Pcb, Sensors And Remote Control

    Connection and wiring diagrams Connection PCB, sensors and remote control A Connection to the control PCB qO Flow temperature sensor, mixer (see page 137, X4 to X13 and X3 circuit 1: external heat source to X4) (accessory) or primary cooling cir- 9 Sensor connection PCB cuit qQ Outside temperature sensor 1...
  • Page 134 Connection and wiring diagrams Connection PCB, sensors and remote control (cont.) wT Room temperature sensor, direct wZ Room temperature sensor heating heating circuit (accessory) circuit with mixer (accessory) zQ Room temperature sensor, natural cooling circuit...

  • Page 135: Safety Chain

    Connection and wiring diagrams Safety chain A Control unit power switch C Relay contact on control PCB B Phase monitor (see page 137) D Control PCB (see page 137)
  • Page 136 Connection and wiring diagrams Safety chain (cont.) E Implemented as individual free eE Safety high pressure limiter, com- core outside the PCB pressor F On relay contact K1 on the control eR Low pressure, compressor eT Control high pressure, compres- PCB (see page 137) G Jumper (or optionally for DHW eZ Thermal overload relay, compres-...

  • Page 137: Control Pcb

    Connection and wiring diagrams Control PCB...
  • Page 138 Connection and wiring diagrams Control PCB (cont.) A Connection to the control PCB, rE Instantaneous heating water hea- sensors and remote controls (see ter stage 2 (6 kW) rR Mixer 2 OPEN (heating circuit with page 133, X13 to X4 and X4 to mixer) B Power supply from main isolator rT Mixer 2 CLOSE (heating circuit...

  • Page 139: Parts Lists

    Parts lists Parts lists When ordering spare parts: 027 Refrigeration module Quote the part and serial no. (see 028 Heating circulation pump head type plate) and the item no. of the 029 Brine circulation pump head required part (as per this parts list). 030 Safety equipment block 031 Instantaneous heating water Obtain standard parts from your local...
  • Page 140 Parts lists Parts lists (cont.)
  • Page 141 Parts lists Parts lists (cont.)

  • Page 142: Commissioning/Service Reports

    Commissioning/service reports Hydraulic parameter reports Setting and test values Set value Commis- sioning –15 Antifreeze concentration (brine med- °C ium) Groundwater throughput (type WWC) Water inlet temperature °C 10 °C Water outlet temperature °C Temperature differential ΔT 3 - 5 K Checked under the following conditions: Temperature, heating flow °C...

  • Page 143: Reports Of Control Parameters

    Commissioning/service reports Hydraulic parameter reports (cont.) Setting and test values Set value Commis- sioning Test, three-way valve, heat pump and cylinder heating Checked under the following conditions: Room temperature °C Outside air temperature °C Three-way valve and heat pump, heat- ing mode Temperature "DHW cylinder top"...
  • Page 144 Commissioning/service reports Reports of control parameters (cont.) Setting parameters Setting range Standard Commission- setting Primary pump ON for No/Yes Heat pump Max. flow temperature 25 to 60 °C 55 °C Min. compressor off 00:20 to 30:00 min 10:00 min- utes Min.
  • Page 145 Commissioning/service reports Reports of control parameters (cont.) Setting parameters Setting range Standard Commission- setting DHW program tem- 7-day program perature DHW circulation pump 7-day program program Operating mode 0 to 6 DHW cylinder max. 20 to 80 °C 60 °C Hysteresis, DHW elec- 2 to 30 K 10 K...
  • Page 146 Commissioning/service reports Reports of control parameters (cont.) Setting parameters Setting range Standard Commission- setting Excess reaction 0 to 2 Room temperature No/Yes sensor Slope, room tempera- 0 to 10 ture hook-up Room temperature 0 to 3 hook-up Start optimisation No/Yes Max.
  • Page 147 Commissioning/service reports Reports of control parameters (cont.) Setting parameters Setting range Standard Commission- setting Buffer cylinder pro- 7-day program gram Fixed temperature 1 to 60 °C 50 °C Temperature hyster- 2 to 20 K esis Max. temperature 1 to 70 °C 60 °C Stop optimisation No/Yes...
  • Page 148 Commissioning/service reports Reports of control parameters (cont.) Setting parameters Setting range Standard Commission- setting Mixer temperature 0 to 80 °C 60 °C limit Minimum runtime 0:00 to 24:00 h 2:00 h Runtime without de- 0:00 to 24:00 h 2:00 h mand Mixer active zone 2.0 to 40.0 K...

  • Page 149: Specification Type Bwc

    Specification type BWC Specification type BWC Vitocal 300 Type BWC 104 BWC 106 BWC 108 BWC 110 Heat pump perfor- mance data Operating point B0/W35 B0/W35 B0/W35 B0/W35 Rated heating output 10.8 Refrigerating capacity Power consumption Coefficient of perfor- 4.36 4.57...
  • Page 150 Specification type BWC Specification type BWC (cont.) Vitocal 300 Type BWC 104 BWC 106 BWC 108 BWC 110 Starting current (com- pressor) Starting current (com- 22.0 31.0 43.5 51.0 pressor with stalled armature) Fuse (slow) 3 x 25 Protection IP 20...

  • Page 151: Specification Type Wwc

    Specification type WWC Specification type WWC Vitocal 300 Type WWC 104 WWC 106 WWC 108 WWC 110 Heat pump perfor- mance data Operating point W10/W35 W10/W35 W10/W35 W10/W35 Rated heating output 10.9 14.2 Refrigerating capacity 5.15 6.90 9.00 11.70 Power consumption 1.15...
  • Page 152 Specification type WWC Specification type WWC (cont.) Vitocal 300 Type WWC 104 WWC 106 WWC 108 WWC 110 Rated voltage (heat 3/N/PE 400 V~/50 Hz pump) Rated current (max.) 18.4 19.3 21.1 22.4 Starting current (com- pressor) Starting current (com- 22.0...

  • Page 153: Appendix

    Appendix Order to commission the Vitocal 300 Please send the following order, We would ask that a competent together with the enclosed system employee of yours be present during layout, by fax to your local Viessmann the commissioning. sales office.

  • Page 154: Declaration Of Conformity

    Certificates Declaration of conformity We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, declare as sole responsible body that the product Vitocal 300, type BWC and WWC, incl. heat pump control unit CD70 complies with the following standards: DIN 7003...

  • Page 155: Keyword Index

    Keyword index Keyword index Adjusting sensor temperatures Central fault message ..... . . Antifreeze concentration in the brine Checking pumps, primary pump .
  • Page 156 Keyword index Keyword index (cont.) Cooling mixer 114, 121 ..... . Cooling Ground collector version ....&...
  • Page 157 Keyword index Keyword index (cont.) Manual control Refrigerant circuit ........... . . Manually controlling relays Refrigeration engineer .
  • Page 158 Keyword index Keyword index (cont.) Screed function Tech. service level ..........Second set DHW temperature Temperature sensors 32, 49, 105, 117 .
  • Page 160 3004 540 7 01000 ... 3004 541 7 01000 ... 3004 542 7 01000 ... 3004 543 7 01000 ... Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB...

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