Viessmann PLC VITOCAL 350-HT PRO Operating Instructions For The System User
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Viessmann PLC VITOCAL 350-HT PRO Operating Instructions For The System User

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Viesmann
Operating instructions
for the system user
Heat pump control unit for Vitocal 350-HT Pro
PLC VITOCAL 350-HT PRO
Please keep safe.
5801 531 GB
7/2017

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Summary of Contents for Viessmann PLC VITOCAL 350-HT PRO

  • Page 1 Viesmann Operating instructions for the system user Heat pump control unit for Vitocal 350-HT Pro PLC VITOCAL 350-HT PRO Please keep safe. 5801 531 GB 7/2017...
  • Page 2 Safety instructions For your safety Please follow these safety instructions closely to prevent accidents and material losses. Safety instructions explained Danger Note This symbol warns against the risk of injury. Details identified by the word "Note" contain additional information. Please note This symbol warns against the risk of material losses and environmental pollution.
  • Page 3 Safety instructions For your safety (cont.) Conditions for siting Danger Please note Easily flammable liquids and materials (e.g. Unsuitable ambient conditions can lead to sys- naphtha, solvents, cleaning agents, paints or tem damage and can put safe operation at risk. paper) can cause deflagration and fire.

  • Page 4: Table Of Contents

    Index Index Introductory information Symbols ....................Intended use ..................Appliance description ................Heat pump control unit ............... ■ Commissioning ..................Terminology ................... Your system is preset at the factory ............Tips on saving energy ................Operation Programming unit .................. Operating information ................. ■...

  • Page 5: Introductory Information

    Introductory information Symbols Symbol Meaning Reference to other document containing further information Step in a diagram: The numbers correspond to the order in which the steps are carried out. Warning of material losses and environ- mental pollution Live electrical area Pay particular attention.

  • Page 6: Appliance Description

    Introductory information Appliance description Heat pump control unit Depending on the type of heat pump and accessories installed, your heating system may be equipped as fol- lows: ■ Heating: Central heating and, if installed, heating of heating water buffer cylinders ■...

  • Page 7: Tips On Saving Energy

    Introductory information Your system is preset at the factory (cont.) Note Time and date At temperatures below −20 °C, frost protection of the ■ The day and time were set by your heating contrac- heat pump, the DHW cylinder and the heating water tor during commissioning.

  • Page 8: Operation Programming Unit

    Operation Programming unit Operating information You can change all heat pump control unit settings at If the screen is not touched for 5 minutes, the display the programming unit. returns automatically to the homepage. The programming unit is equipped with a touchscreen. If the screen is not touched for 15 minutes, the display To input settings and call up information, tap the on- switches off automatically.

  • Page 9: Main Side

    Operation Programming unit (cont.) Main side Fig. 2 Information about the system Calls up the "Manual switching" page. Information about operation Adjustment options for service engineers Date/time only. Calls up the "Status, system" page. See Calls up the "Time setting" page. See page 12.

  • Page 10: Menu

    Operation Programming unit (cont.) Menu To call up the "Menu" page, tap on the "Menu" button Fig. 3 Select the required menu point: ■ "Coolant", coolant buffer cylinder, see page 20 ■ "Heat source", see page 16 ■ "Resid. heat", residual heat dissipation, see ■...

  • Page 11: Login And Language

    Operation Programming unit (cont.) Login and language To call up the "Login and language" page, tap on the button. Fig. 4 Entry field for the user name Entry field for the password Login button Log off button Login Selecting the language Some settings can only be changed after obtaining The language is selected by tapping the corresponding authorisation by entering a password.

  • Page 12: System Status

    Operation Programming unit (cont.) System status To call up the "Status, system" page, tap on the but- ton. Fig. 5 This page provides information on the various system ■ PSU enable present statuses. ■ No priority 1 alarm active A green dot indicates an enable or normal operation. Heating or cooling demand present ■...
  • Page 13 Operation Programming unit (cont.) Fig. 6 ■ Each alarm is shown on a separate line. ■ Alarms can only be acknowledged if they are no lon- ■ Current alarms that have not been acknowledged ger current. Individual on-site appliances may addi- are highlighted in red.

  • Page 14: High Temperature Maintenance

    Operation Programming unit (cont.) High temperature maintenance To call up the "T maint." page, tap on the following buttons: ■ "Menu" ■ "T maint." Fig. 7 Secondary pump 3-way mixing valve, secondary high temperature maintenance Set and actual values, high temperature mainte- nance Inlet temperature, secondary heat pump...

  • Page 15: Heating Water Buffer Cylinder

    Operation Programming unit (cont.) Heating water buffer cylinder To call up the "HWB" page, tap on the following but- tons: ■ "Menu" ■ "HWB" Fig. 8 Secondary pump Set value, heating water buffer cylinder 3-way mixing valve, secondary high temperature Heating water buffer cylinder temperature, top maintenance Heating water buffer cylinder temperature, bottom...

  • Page 16: Heat Source

    Operation Programming unit (cont.) Heat source To call up the "Heat source." page, tap on the follow- ing buttons: ■ "Menu" ■ "Heat source" Fig. 9 Circulation pump, heat source Flow temperature, primary circuit (inlet) Mixing valve, low temperature maintenance Return temperature, primary circuit (outlet) Primary pump...

  • Page 17: Heat Pump Operation

    Operation Programming unit (cont.) Heat pump operation To call up the "Heat pump" page, tap on the following buttons: ■ "Menu" ■ "Heat pump" Fig. 10 For compressor 1, 2 and 3, see the following chap- Casing temperature "High press." condensing temperature, calculated White Switched OFF from pressure Green Switched ON...

  • Page 18: Compressor

    Operation Programming unit (cont.) Compressor To call up the "Comprssr" page, tap on the following buttons: ■ "Menu" ■ "Heat pump" Symbol (compressor 1, 2 or 3) ■ Fig. 11 Buttons and displays of the compressors ■ "Hours run" "Control switch" Number of hours run by the compressor ■...

  • Page 19: Domestic Hot Water Cylinder (Dhw)

    Operation Programming unit (cont.) Domestic hot water cylinder (DHW) To call up the "DHW cylinder" page, tap on the follow- ing buttons: ■ "Menu" ■ "DHW" DHW heating takes priority over central heating. Charging of the heating water buffer cylinder is inter- rupted until DHW heating has finished.

  • Page 20: Coolant Buffer Cylinder

    Operation Programming unit (cont.) Coolant buffer cylinder To call up the "Coolant buffer cylinder" page, tap on the following buttons: ■ "Menu" ■ "Coolant" Fig. 13 Set value for coolant buffer cylinder Inlet temperature, primary heat pump Coolant buffer cylinder temperature, top Outlet temperature, primary heat pump Coolant circulation pump Flow temperature, coolant buffer cylinder...

  • Page 21: Residual Heat Dissipation

    Operation Programming unit (cont.) Residual heat dissipation To call up the "Resid. heat" page, tap on the following buttons: ■ "Menu" ■ "Resid. heat" Fig. 14 Dry cooler Circulation pump, residual heat 2-way valve (dry cooler shut-off) Mixing valve, frost protection and return tempera- Outlet temperature, secondary heat pump ture raising 2-way valve (heat source shut-off)

  • Page 22: Setting The Time And Date

    Operation Programming unit (cont.) Setting the time and date To call up the "Time setting" page, tap on the date/ time (top right). Fig. 15 Enter the "Time" (format: hh:mm), "Date" (format: Confirm each respectively with ">>". DD:MM:YY) and day of the week.

  • Page 23: Adjusting Set Values

    Operation Programming unit (cont.) Adjusting set values To call up the "Set val." page, tap on the following but- tons: ■ "Menu" ■ "Set val." Fig. 16 Buttons: "HWB" ■ Set values for heating water buffer cylinder and high temperature maintenance ■...

  • Page 24: Set Values For Heating Water Buffer Cylinder (Hwb) And High Temperature Maintenance

    Operation Programming unit (cont.) Set values for heating water buffer cylinder (HWB) and high temperature maintenance To call up the "Set values, heating w. buffer cyl. and t maint." page, tap on the following buttons: ■ "Menu" ■ "Set val." "HWB"...
  • Page 25 Operation Programming unit (cont.) ■ "Heating water buffer cyl." The achievable flow temperature in the secondary cir- Set temperature of heating water buffer cylinder (20 cuit is dependent on the temperature of the heat to 90 °C) source. Note If the set temperature has been specified by a higher Example: ranking system, the field only functions as a display.

  • Page 26: Set Values For Domestic Hot Water (Dhw)

    Operation Programming unit (cont.) Set values for domestic hot water (DHW) To call up the "Set val DHW" page, tap on the follow- ing buttons: ■ "Menu" ■ "Set val." "DHW" ■ Fig. 19 "Set value, cyl" DHW heating seven-day program ■...

  • Page 27: Set Values For Coolant Buffer Cylinder

    Operation Programming unit (cont.) Set values for coolant buffer cylinder To call up the "Set values, coolant buffer cylinder" page, tap on the following buttons: ■ "Menu" ■ "Set val." "Coolant" ■ Fig. 20 "Set value, cyl" ■ Set temperature of coolant buffer cylinder (0 to 30 °C) ■...

  • Page 28: Start-Up/Shutdown Switching The Power Supply On/Off

    Start-up/shutdown Switching the power supply on/off Starting the heat pump 1. Switch ON the power supply, e.g. at a separate 4. Tap the button. MCB/fuse or a mains isolator. The heat pump is switched on. Symbol is green. 2. Turn on the mains isolator. The main side is shown on the display after a short Note time.

  • Page 29: Maintenance

    For this, it is recommended that you take out an inspection and maintenance contract with your local heating con- tractor or your Viessmann agent. DHW cylinder Standards DIN 1899-8 and DIN 806 specify that main- If any water treatment equipment (e.g.

  • Page 30: Appendix Refrigerant

    The following faults may cause consequential dam- age. All faults that are marked with an additional "!" should be reported to Viessmann Service before they are acknowledged. Do not acknowledge faults more than once. If a fault remains active or occurs more than once, please contact your heating contractor or Viessmann Service.

  • Page 31: Other Fault Messages

    You may acknowledge the following fault messages at any time. These fault messages do not prevent opera- tion of the heat pump. If a fault remains active or occurs several times, please contact your heating con- tractor or Viessmann Service. Fault message Effects Possible cause "Replace PLC battery"...
  • Page 32 Appendix Overview of fault messages (cont.) Fault message Effects Possible cause "Sensor fault,oil press.2" Compressor 2 remains shut The oil pressure sensor of com- down for as long as the fault is pressor 2 is faulty current "Sensor fault,oil press.3" Compressor 3 remains shut The oil pressure sensor of com- down for as long as the fault is...
  • Page 33 Appendix Overview of fault messages (cont.) Fault message Effects Possible cause "Fault, oil sump heater 2" Compressor 2 switches on auto- The oil sump heater of compres- matically as soon as the fault is sor 2 was switched off for too no longer current long "Fault, oil sump heater 3"...

  • Page 34: Terminology

    Appendix Terminology Raised set value DHW temp. ■ Increasing the temperature of the domestic hot water is done to kill off unwanted bacteria (i.e. legionella) in the water. The function increases energy consump- tion. ■ The DHW needs to be mixed differently at the draw- off point in order to maintain the same temperature.

  • Page 35: Keyword Index

    Keyword index Keyword index Additional function, DHW heating........ 6 Maintenance...............29 Central heating Password..............11 – Default setting............6 Power supply..............28 Cleaning..............29 Commissioning.............6 Refrigerant..............30 DHW heating..............6 Domestic hot water heating Saving energy – Default setting............6 – Tips................7 Summertime changeover..........7 Factory default setting..........6 Factory setting..............6 Terminology..............34...
  • Page 36 Your contact Contact your local contractor if you have any questions about your system or wish to arrange maintenance or repair work. You can find local contractors on the internet at www.viessmann.de. Viessmann Werke GmbH & Co. KG Viessmann Limited...

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