Heat pump with electric drive, 1 and 2-stage, brine/water heat pump: 20.5 to 84.6 kw, with conversion kit to water/water heat pump: 25.4 to 104.6 kw (92 pages)
Summary of Contents for Viessmann KWT Vitocal 350-G Pro Series
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Installation and service instructions for contractors Compact heat pump with electric drive, two-stage and three-stage Vitocal 350-G Pro Type BW 352.A027 to BW 353.A198 Type BW 352.A027 SA to BW 353.A198 SA For applicability, see the last page VITOCAL 350-G PRO Please keep safe.
Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and mate- rial 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, VDE and risk of injury.
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Repairing components that fulfil a safety function can compromise the safe operation of your sys- tem. Replace faulty components with genuine Viessmann spare parts. Auxiliary components, spare and wearing parts Please note Spare and wearing parts that have not been tested together with the system can compromise its function.
Index Index Installation instructions Safety and liability Heat pump application limits................Boiler application limits..................Occupational safety....................Preparing for installation Use........................10 Product information....................10 General information on the electrical connection..........11 Delivery and handling................... 11 Siting........................13 General hydraulic diagram................... 22 Hydraulic connection, geothermal probe..............
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Index Index (cont.) Appendix Heat pump commissioning order................127 Certificates Declaration of conformity..................128 Keyword index....................130...
Safety and liability Heat pump application limits Intended use ■ Generation of cooling and/or heating ■ For use in industry, commerce, domestic households ■ For power supply systems up to 1000 A and 400 V System limit See pipework and instrumentation diagram, connection and wiring diagram Service life Heat pump...
Safety and liability Occupational safety Electrical connections Danger Danger Electromagnetic radiation near Touching 'live' components car- the wiring chamber of the heat ries a risk to life. Some compo- pump control unit can interfere nents on the PCBs will remain particularly with heart pacemak- 'live' even after the power supply ers and defibrillators.
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Safety and liability Occupational safety (cont.) Please note and information in the chapters Observe all "Safety instructions" "Routing cables/leads to the heat pump wiring chamber" (page 45) and "Power supply" (page 62). Working on the heat pump Please note Danger Prior to commissioning and fol- Falling of heavy or unwieldy heat lowing repair or maintenance...
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Safety and liability Occupational safety (cont.) Danger Direct contact with refrigerant can be harmful to skin. ■ Only work on the refrigerant cir- cuit whilst wearing safety gog- gles and gloves. Note Only qualified refrigeration engineers should work on the refrigerant circuit.
Preparing for installation The heat pump Vitocal 350-G Pro, Note type BW 352.A027/SA to BW 353.A198/SA The Vitocal 350-G Pro must be operated can be used for the following purposes: exclusively by authorised and trained ■ Central heating and cooling via a heat- personnel.
Preparing for installation General information on the electrical connection ■ Electrical connection of system The number of power cables from the components distribution board (meter box) to the heat (pumps, mixers, valves, alarm facili- pump control unit and to the control ties, contactor, function extensions, panel depends on the system version sensors, etc.):...
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30° of the Vitocal 350-G Pro. 7. Protect the heat pump by inserting KWT Kälte-Wärmetechnik AG/ wadding material and timbers to Viessmann will not accept liability for spread the ropes. any damage resulting from incorrect handling. Handling by crane...
Preparing for installation Delivery and handling (cont.) Handling by forklift truck or pallet truck A Select a fork length in line with the C Edge protection (e.g. two or three heat pump length, see "Specifica- layers of corrugated cardboard) tion" (page 119). B Always centre the forklift truck forks on the centre of gravity of the Vitocal 350-G Pro (through the heat...
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Preparing for installation Siting (cont.) BW 352.A076/SA 963 kg Minimum clearances BW 352.A097/SA 1065 kg BW 352.A114/SA 1113 kg Observe required minimum clearances. BW 352.A132/SA 1209 kg BW 352.A156/SA 1260 kg Note BW 353.A172/SA 1604 kg ■ Additional strain relief clamps are BW 353.A198/SA 1678 kg required for the power cables if the clearance behind the heat pump is...
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Preparing for installation Siting (cont.) C Cable entries On-site strain relief clamps required (wall clearance ≥ 80 mm). D ■ When using hydraulic connection accessories (connection set and Victaulic flange adaptor set, 2½" or 3" version): ≥ 1000 mm ■ On-site hydraulic connections: ≥...
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Preparing for installation Siting (cont.) Pressure points of the adjustable heat pump feet Type BW 352.A027/SA, BW 352.A034/SA, BW 352.A056/SA 1900 Type BW 352.A076/SA, BW 352.A097/SA, BW 352.A114/SA, BW 352.A132/SA, 352.A156/SA 2100...
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Preparing for installation Siting (cont.) Type BW 353.A172/SA, BW 353.A198/SA 2800...
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Preparing for installation Siting (cont.) Requirements for on-site connections BW 352.A027 to BW 352.A056/BW 352.A027 SA to BW 352.A056 SA 400 V~ 230 V~ 1848 A Flow, primary circuit (brine inlet) C Return, heating circuit B Return, primary circuit (brine outlet) D Flow, heating circuit...
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Preparing for installation Siting (cont.) BW 352.A076 to BW352.A114/BW 352.A076 SA to BW352.A114 SA 400 V~ 230 V~ 2153 A Flow, primary circuit (brine inlet) C Return, heating circuit B Return, primary circuit (brine outlet) D Flow, heating circuit...
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Preparing for installation Siting (cont.) BW 352.A132 to BW 352.A156/BW 352.A132 SA to BW 352.A156 SA 400 V~ 230 V~ 2153 A Flow, primary circuit (brine inlet) C Return, heating circuit B Return, primary circuit (brine outlet) D Flow, heating circuit...
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Preparing for installation Siting (cont.) BW 353.A172 to BW 353.A198/BW 353.A172 SA to BW 353.A198 SA 400 V~ 230 V~ 2816 A Flow, primary circuit (brine inlet) C Return, heating circuit B Return, primary circuit (brine outlet) D Flow, heating circuit Hydraulic connection requirements ■...
Preparing for installation General hydraulic diagram...
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Preparing for installation General hydraulic diagram (cont.) Note This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering. Determine the type of heat source, groundwater or geothermal probe during the engineering process; only one option can be chosen.
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Preparing for installation General hydraulic diagram (cont.) Buffer temperature sensor, bottom 3-way diverter valve, cooling mode Heat exchanger, natural cooling/cooling Temperature sensor, cold water Cooling water buffer cylinder Circulation pump, chiller Buffer temperature sensor, top Buffer temperature sensor, bottom Motorised 2-way valve, cooling mode 3-way mixer natural cooling/3-way diverter valve, cooling mode Underfloor heating/Underfloor cooling circuit M1 Flow temperature sensor...
Preparing for installation Hydraulic connection, external heat generator (cont.) Required equipment Pos. Designation Heat pump Heat pump control unit Secondary pump Outside temperature sensor Safety assembly, heating circuit Expansion vessel External heat generator Control unit, ext. heat generator Outside temperature sensor System flow temperature sensor System mixer, central heating Heating water buffer cylinder...
Installation sequence Siting the heat pump Removing the top cover In order to make the electrical connection of the heat pump, remove the entire cover by undoing its screw. 1. Undo all screws at the bottom of the front panel. 2.
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Installation sequence Siting the heat pump (cont.) Levelling the heat pump Position and level the heat pump hori- zontally as described from page 13. Removing the transport brackets Please note If transport brackets are not removed, they cause vibrations and excessive noise. Remove all 4 transport brackets fully and dispose of correctly.
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Installation sequence Siting the heat pump (cont.) A Frame screw Installation sequence 1. Fit the rear panels, see the following 5. Fitting the programming unit into the page. front panel. 2. Connect the hydraulic lines, see 6. Terminate cables and connect the page 39.
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Installation sequence Siting the heat pump (cont.) Fitting the casing panels...
Installation sequence Making the hydraulic connections Connection overview Type BW 352.AS027/SA to BW 353.AS198/SA C Primary circuit return (heat pump Note The rear side panel needs to be fitted water outlet): before the hydraulic connection is made. Victaulic 3" See previous diagram. D Secondary circuit return: Victaulic 2½"...
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Installation sequence Making the hydraulic connections (cont.) A Victaulic 2½" (secondary circuit) or C Optional: Flange with 2½" (secon- 3" (primary circuit) couplings dary circuit) or 3" (primary circuit) B Flexible connecting cable with anti- thread vibration elements D Securing hydraulic lines...
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Installation sequence Making the hydraulic connections (cont.) Version with flange connection A Victaulic 2½" (secondary circuit) or C Anti-vibration compensators, on 3" (primary circuit) couplings site B Adaptor with flange DN80/PN10, D Securing hydraulic lines without anti-vibration elements...
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Installation sequence Making the hydraulic connections (cont.) Installation of the Victaulic couplings PN10 220 / 300 1. Clean the Victaulic connections. 4. Push connection line C (connection set) or flanged adaptor D (flanged 2. Open Victaulic coupling B around Victaulic adaptor set) as far as it will 1 cm.
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5. Charge the primary circuit with the heat transfer medium. Viessmann heat transfer medium ■ Discharge and drain pipes must and vent. terminate in a container that can hold the maximum possible expan- sion volume of the heat transfer medium.
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Installation sequence Making the hydraulic connections (cont.) Connecting the secondary circuit 1. Equip the heating circuit on site with 3. Fill and vent the heating circuit. an expansion vessel and safety assembly (in accordance with 4. Thermally insulate pipes inside the DIN 4757).
Installation sequence Making the electrical connections Danger When routing the on-site cables, Damaged cable insulation can observe the location of the cable entries cause injury and damage to the into the appliance at its back panel. appliance. Install additional strain relief clamps for Route cables so that they cannot the power cables if the clearance behind touch very hot, vibrating or sharp-...
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Installation sequence Making the electrical connections (cont.) Routing cables to the heat pump wiring chamber 400 V~ 230 V~ <42 V 1. Route LV leads through the "< 42 V" 3. Route power cable for compressor entry to the heat pump wiring cham- through the "400 V"...
Installation sequence Overview of electrical connections Overview, part winding control panel...
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Installation sequence Overview of electrical connections (cont.) A Power supply 3 x 400 V∼/50 Hz B Mains isolator C Contactors compressor 1 D Contactors compressor 2 E Load MCB/fuse compressor 1 F Load MCB/fuse compressor 2 G Motor protection compressor 1 H Motor protection compressor 2 K MCB/fuse, primary and secondary pumps L Power supply unit, control unit...
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Installation sequence Overview of electrical connections (cont.) 6 Terminal strip for system components, heat pump external Overview of electrical connections Terminal strip, external connections Connection and wiring diagram 400 V~/230 V~ components External connections Terminals Function Explanation 12X0 Floating alarm contact for Connection values compressor 1 ■...
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Installation sequence Overview of electrical connections (cont.) Circuit protection from load MCB/fuse 5F1 (observe the total current of max. 16 A) Terminals Function Explanation 13X0 Circulation pump, evapora- Connection values ■ Max. output: 4000 W Heat pump ■ Voltage: 400 V~/230 V~ ■...
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Installation sequence Overview of electrical connections (cont.) Circuit protection from load MCB/fuse 6F1 (observe the max. switching current of 16 A) Terminals Function Explanation 28X1 Circulation pump heating Connection values circuit 1 ■ Max. output: 4000 W/ 2200 W ■ Voltage: 400 V~/230 V~ ■...
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Installation sequence Overview of electrical connections (cont.) Terminals Function Explanation 25X1 Circulation pump, external Connection values heat generator ■ Max. output: 4000 W/2200 W Boiler option ■ Voltage: 400 V~/230 V~ ■ Max. switching current: 9 A (AC3) Connect on site. 40X0 Circulation pump, residual Connection values...
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Installation sequence Overview of electrical connections (cont.) Terminals Function Explanation 30X2 (DC) / Mixing valve, heating circuit Connection values 33X2 (AC) ■ Max. output: 180 VA ■ Voltage: 24 VAC/DC/0-10 V Connect on site. 38X0 (DC) / Mixing valve, condenser Connection values 39X0 (AC) Temperature maintenance...
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Installation sequence Overview of electrical connections (cont.) Terminals Function Explanation Oil sump heater Connection values compressor 3 ■ Max. output: 140 W ■ Voltage: 230 V∼ Wired at the factory Winding protection Connection values compressor 1 ■ Voltage: 24 VDC Wired at the factory High pressure switch Connection values...
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Installation sequence Overview of electrical connections (cont.) Terminals Function Explanation 10X3 High pressure switch Connection values compressor 3 ■ Voltage: 24 VDC Wired at the factory 13X6 MV control valve, liquid Connection values Evaporator ■ Max. output: Heat yield 22 VA ■...
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Installation sequence Overview of electrical connections (cont.) Terminals Sensor Type 28X6 Flow temperature sensor, Pt1000 (PTC) heating circuit 1 Connect on site 29X6 Flow temperature sensor, Pt1000 (PTC) heating circuit 2 Connect on site 30X6 Flow temperature sensor, Pt1000 (PTC) heating circuit 3 Connect on site 22X4...
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Installation sequence Overview of electrical connections (cont.) Terminals Sensor Type 37X2 Temperature sensor, cylin- Pt1000 (PTC) der, cold water bottom Connect on site Cold water option 37X4 Flow temperature sensor, Pt1000 (PTC) heating Cylinder, cold water Connect on site Cold water option Note All sensor leads and 0-10 V signal leads must be shielded with copper braiding and have a minimum cross-section of 0.5 mm...
Installation sequence Overview of electrical connections (cont.) Terminals Sensor Type 16X0 Pressure sensor TRFG ND9 Oil pressure Compressor 1 Wired at the factory 16X2 Pressure sensor TRFG ND9 Oil pressure Compressor 2 Wired at the factory 16X4 Pressure sensor TRFG ND9 Oil pressure Compressor 3 Wired at the factory...
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Installation sequence Power supply (cont.) ■ In negotiations with your power supply Information regarding the compres- utility, different supply tariffs for the sor power supply (power circuit) main power circuits may be offered. ■ Observe the technical connection Please note requirements of the power supply util- Incorrect phase sequence can ity.
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Installation sequence Power supply (cont.) Type Heat pump System com- Power supply, heat Max. cable power sup- ponent power pump control unit in length the case of power- ply (400 V∼/ supply (400 V∼/ OFF with load discon- 50 Hz) 50 Hz) nect (400 V∼/50 Hz) on site...
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Installation sequence Power supply (cont.) Note ■ The power supply to the control circuit must not be able to be interrupted by the power supply utility. The control circuit therefore requires a separate power supply. ■ A separate control unit connection to safeguard the power supply of the con- trol unit in the case of a load discon- nect by the power supply utility...
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Installation sequence Power supply (cont.) Connections, heat pump load connection Vitocal type 352.A114/ 352.A132/ 352.A156/ 352.A172/ 352.A198/ Connection 95 mm 95 mm 120 mm 120 mm 150 mm cross-sec- tion, HP cir- cuit breaker Torque, HP 12 Nm 12 Nm 12 Nm 12 Nm 12 Nm...
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Installation sequence Power supply (cont.) Overload protection Starting characteristics This will separate the appliance from the The starting characteristics are set at the mains automatically if the tolerance DIP switches behind the protective range of the electronic soft starter is transparent cover of the electronic soft exceeded.
Installation sequence Closing the heat pump Please note 1. Prior to closing the heat pump, check Seal the appliance so it is sound- the following: proof and diffusion-proof. ■ Are all cables inside the wiring Check tightness of internal chamber securely fixed (strain hydraulic connections.
Commissioning, inspection, maintenance Further details regarding the individual steps Opening the heat pump Danger 1. Open the top cover in accordance Contact with 'live' components with chapter "Siting the heat pump". can lead to serious injury from electric current. 2. Close the heat pump after completing Never touch the terminals of the all work.
Charging and venting on the primary side Please note 3. Charge the primary circuit with To prevent appliance damage, Viessmann heat transfer medium charge the primary circuit before and vent. connecting the power supply. Note 1. Check Victaulic connection inside the The system must be protected heat pump for tightness.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Check Victaulic connection inside the 5. Check the system pressure and top heat pump for tightness. The cou- up with water if required. pling must sit flush inside the Minimum system pressure: 0.8 bar grooves.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Observe the instructions in the separate service instructions of the Vitotronic SPS heat pump control unit, otherwise the appliance warranty will be void. Configuration procedure The configuration procedure is described on the following pages along with screen- shots.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Menu 16:41:01 19/06/2013 Home page General condition Plant Choose a language System info Login ■ Select "Login".
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Service 15:11:00 05/06/2013 System info User level 3 Last operation: Please enter your pasword Last error: Model size: Logout BW302.AS150 SW version: Configuration V0.95 IP address: to follow Choose a language Plant Home page ■...
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 04. Configuration menu Configuration menu 16:12:37 29/07/2013 System configuration System parameters System controller parameters For security reasons, some of the configuration screens can only be opened with a service or contractor password.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 05. System configuration Size selection Selection size Main menu 17:14:07 BW352.A027 BW352.A034 BW352.A056 BW352.A076 BW352.A079 BW352.A114 BW352.A132 BW352.A156 BW353.A172 BW353.A198 BW30x ■ Select the system type here. ■ The first screen gives an overview of all 35x systems. ■...
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 06. Heat recovery selection/selecting the heat source Selection heat recovery 09:42:19 Boreholes / Groundwater / glycol on water on evaporator evaporator ■ Ó Next ■ Ò Back...
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 07. Selection external control Selection external control 16:08:12 External control Setting up external control: ■ Set the properties under "System controller parameters" and "External con- trol settings". ■ For external control via Modbus, also select 1 "System controller parame- ters"...
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 09. Heating selection (direct/cylinder/external heating) Setting options: Heating selection 09:45:29 Direct Heating zone 1 Regulated Cylinder Heating zone 2 Regulated Ext. 0-10 V External Heating zone 3 heating The system can provide heating with a fixed set value, by applying a heating curve or by means of an external signal.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) "Ext. 0-10 V" (external output signal) ■ The set value for the heating water buffer cylinder and heating circuits is specified by an external analogue signal (0 V = -10 °C, 10 V = 73 °C or lower if the maximum flow temperature for the selected heat pump is below this).
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 10. Selection DHW cylinder Water heater selection 09:46:22 Circulation El. heating ■ "DHW" (domestic hot water) specifies whether DHW is heated by the system. ■ "DHW circulation" means a DHW circulation pump is available. ■...
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 11. Selection cooling Cooling selection 09:47:27 Direct Cooling zone 1 Cylinder Cooling zone 2 Regulated Ext. 0-10 V Cooling zone 3 Free cooling Regulated The cold water can be charged with a fixed set value or according to a cooling curve.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) "Direct" ■ No separate cooling circuits, no cylinder "Cylinder" ■ Cooling circuits with cylinder, active and natural cooling "Natural cooling" ■ Cannot be combined with "active cooling" or "Cylinder", therefore only possible if the cooling function is disabled.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 12. Residual heat selection Residual heat selection 09:47:53 Residual heat cooling and boreholes cooling Cooling via boreholes ■ Selection of the residual heat function (only for cooling mode); only required for active cooling mode.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 13. Safety selection Safety limit selection 09:48:54 -6.0 °C Low pressure setting: 76.0 °C High pressure setting: Frost protection setting: 3.0 °C ■ These values are used by the control unit and as safety limits. The values are initially preset and should only be modified if you have the appropriate technical knowledge.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) High pressure = Max. flow condensation temperature 76 °C 73 °C 67 °C 65 °C Low pressure = Primary ON/OFF evaporation temperature -6 °C 0 °C / -3 °C -10 °C -3 °C / -6 °C -14 °C -7 °C / -10 °C...
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 15. Confirmation of set values You have selected 09:49:20 Heat recovery Boreholes Heating Heating storage Setpoint by selection Heating zone 1 Regulated Heating zone 2 Unregulated Heating zone 3 Disabled Auxiliary heating Water heater Circulation...
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 16. System controller configuration System controller configuration 16:13:45 29/07/2013 External control settings Ethernet settings Modbus settings For security reasons, the configuration screens can only be opened with a sufficiently high user level (password).
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Setting option screens: External control properties 16:47:55 06/08/2013 External control properties Type of control Control function Fixed set value heating in deg. C. Down Direct control signals External set value Modbus Fixed set value cooling in deg.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) ■ The changeover signal and the 2 enable signals are not evaluated if the Modbus handles the control. ■ The corresponding Modbus parameters are: – "HP enable bit1" (1 = enabled) –...
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Ethernet communication 16:48:48 06/08/2013 Ethernet controller settings IP address Subnet mask Default router The Ethernet settings apply to the webserver, Modbus UDP and Modbus TCP. Please note: Once the Ethernet address has been changed, the display does not connect to the controller if the display is connected via Ethernet.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Modbus communication 17:13:17 06/08/2013 Modbus communication settings Communication interface RS485 communication setting Modbus Unit Identifier (UID) Modbus TCP RS485 baud rate 115200 Modbus UDP Down RS485 parity bit Modbus RS485 None (N) Static settings: Data format = RTU word order for 32 bit values = most significant word first Number format = 16 bit signed int or 32 bit signed int depending on parameter.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 17. Heating curves ■ The diagram shows the relationship between flow temperature and outside temperature. ■ The outside temperatures are shown horizontally and the flow temperatures are shown vertically. ■ The control unit is factory set to a room temperature of 20 °C in standard mode and 16 °C in reduced mode (setback mode).
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Example: This example uses the heating curve values from the screenshot. Assuming: the outside temperature is 7 °C, then the flow temperature will be regulated to 35 °C. If the outside temperature is 3.5 °C, then the flow temperature will be regulated to 38.5 °C.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 19. Correct adjustment of heating curve and set temperature constants The heating curve is optimally adjusted if the standard room temperature results from the heating curve alone. Consequently, the temperature correction factor must be 0 when adjusting the heating curves.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 21. Cooling circuits The cooling curve results from: outside temperature and set cooling temperature. This means only one offset and one slope can be adjusted. Cooling circuits are regulated and adjusted in the same way as heating circuits (Please note: observe the difference described above).
Troubleshooting Repairs Overview of internal components Type BW 352.A076/SA to BW 352.A156/SA 1 Condenser 8 Compressor 1 2 Evaporator 9 High pressure safety switch, com- pressor 1 3 Low pressure sensor qP Oil level sight glass, compressor 4 Low pressure safety switch qQ Oil pressure safety switch, com- 5 Low pressure test port pressor...
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Troubleshooting Repairs (cont.) qE High pressure test port qI Primary circuit flow temperature qR Filter dryer sensor (heat pump brine inlet) qO Primary circuit return temperature qT High pressure sensor sensor (heat pump brine outlet) qZ Return temperature sensor, heating wP Sight glass, liquid line circuit wQ Electronic expansion valve...
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Troubleshooting Repairs (cont.) Checking sensors Sensor Capturing element ■ System flow temperature sensor (F13) Pt1000 ■ Buffer temperature sensor (F4) ■ Cylinder temperature sensor (F6) ■ Flow/return temperature sensor, heating circuit (F8/F9) ■ All sensors inside the heat pump ■ Boiler water temperature sensor, external heat generator Temperature sensors type Pt1000 Sensor connections at terminals and the controller...
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Troubleshooting Repairs (cont.) Appliance too noisy Possible causes: ■ Transport bracket not removed ■ Control unit door not tightly closed ■ Casing not securely closed ■ The hydraulic connection is touching the heat pump body. ■ The hydraulic connection is under stress;...
Parts list, type BW Spare part for part winding start version Note Quote the part and serial numbers (see type plate) as well as the position num- ber of the required part (as per the parts list supplied). Standard parts are availa- ble from your local supplier.
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Parts list, type BW Spare part for part winding start version (cont.) Part no. Vitocal 350-G Pro Type BW 352.A 7841290 Outside temperature sensor 7841291 System temperature sensor 7841292 Temperature sensor 7841293 Low pressure switch 7841294 Sight glass 7841295 7837956 7841296 Filter dryer 7841299...
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Parts list, type BW Spare part for part winding start version (cont.) Part no. Vitocal 350-G Pro Type BW 352.A 7841319 Auxiliary switch 7841320 Auxiliary contact 7841321 Contactor relay 7841322 Base for auxiliary relay 7841323 Plug-in interface relay 7841324 Diode 7841325 Circuit breaker 7841326...
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Parts list, type BW Spare part for part winding start version (cont.) Part no. Vitocal 350-G Pro Type BW 352.A Terminal cover shallow/high 7841347 7841348 7841349 Handle drive 7841352 CB appliance adaptor 7841354 7841355 Front panel GH 1 7841356 Rear panel 1 and 2 7841358 7841359 Side panel A, B, A 2/3 and B 2/3...
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Parts list, type BW Spare part for part winding start version (cont.) Part no. Vitocal 350-G Pro Type BW 352.A 7841376 Cable entry 7837992 7841422 Cable sensor/expansion sensor 7841423 Pipe strap 7841424 Casing cover GH 1 small and GH 2 medium 7841425 7841426 Part no.
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Parts list, type BW Spare part for part winding start version (cont.) Part no. Vitocal 350-G Pro Type BW 352.A Type BW 353.A 7841288 Line 7841289 High pressure switch 7841290 Outside temperature sensor 7841291 System temperature sensor 7841292 Temperature sensor 7841293 Low pressure switch 7841294...
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Parts list, type BW Spare part for part winding start version (cont.) Part no. Vitocal 350-G Pro Type BW 352.A Type BW 353.A 7841318 Delay 7841319 Auxiliary switch 7841320 Auxiliary contact 7841321 Contactor relay 7841322 Base for auxiliary relay 7841323 Plug-in interface relay 7841324 Diode...
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Parts list, type BW Spare part for part winding start version (cont.) Part no. Vitocal 350-G Pro Type BW 352.A Type BW 353.A 7841350 7841351 Handle drive 7841352 CB appliance adaptor 7841353 Rear panel 2 and 2/3 7841359 7841360 Side panel A 2/3 and B 2/3 7841363 7841364 Fascia, long/short...
Parts list, type BW Spare part for part winding start version (cont.) Part no. Vitocal 350-G Pro Type BW 352.A Type BW 353.A 7841426 7841427 Spare part for soft starter version Mat. no. Vitocal 350-G Pro Type BW 352.A 027 SA 034 SA 056 SA 076 SA...
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Parts list, type BW Spare part for soft starter version (cont.) Mat. no. Vitocal 350-G Pro Type BW 352.A 027 SA 034 SA 056 SA 076 SA 097 SA Line 7841289 High pressure switch 7841290 Outside temperature sensor 7841291 Contact temperature sensor 7841292 Temperature sensor 7841293...
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Parts list, type BW Spare part for soft starter version (cont.) Mat. no. Vitocal 350-G Pro Type BW 352.A 027 SA 034 SA 056 SA 076 SA 097 SA Auxiliary switch 7841320 Auxiliary contact 7841321 Contactor relay 7841322 Base for auxiliary relay 7841323 Interface relay 7841324...
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Parts list, type BW Spare part for soft starter version (cont.) Mat. no. Vitocal 350-G Pro Type BW 352.A 027 SA 034 SA 056 SA 076 SA 097 SA 7841346 Mains isolator 7838004 Terminal cover high/shallow 7841347 7841348 7841349 Handle drive 7841352 CB appliance adaptor 7841354...
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Parts list, type BW Spare part for soft starter version (cont.) Mat. no. Vitocal 350-G Pro Type BW 352.A 027 SA 034 SA 056 SA 076 SA 097 SA Locking bolt 7841375 Hexagon screw set 7841376 Cable entry 7837992 7841422 Cable sensor/expansion sensor 7841423 Pipe strap...
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Parts list, type BW Spare part for soft starter version (cont.) Vitocal 350-G Pro Mat. no. Type BW 352.A Type BW 353.A 114 SA 132 SA 156 SA 172 SA 198 SA Pressure transmitter 7841286 7841287 7841288 Line 7841289 High pressure switch 7841290 Outside temperature sensor 7841291...
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Parts list, type BW Spare part for soft starter version (cont.) Vitocal 350-G Pro Mat. no. Type BW 352.A Type BW 353.A 114 SA 132 SA 156 SA 172 SA 198 SA 7841311 Delay 7841319 Auxiliary switch 7841320 Auxiliary contact 7841321 Contactor relay 7841322...
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Parts list, type BW Spare part for soft starter version (cont.) Vitocal 350-G Pro Mat. no. Type BW 352.A Type BW 353.A 114 SA 132 SA 156 SA 172 SA 198 SA 7841344 Circuit breaker 7841345 Terminal cover shallow/high 7841350 7841351 Handle drive 7841352...
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Parts list, type BW Spare part for soft starter version (cont.) Vitocal 350-G Pro Mat. no. Type BW 352.A Type BW 353.A 114 SA 132 SA 156 SA 172 SA 198 SA 7841422 Temperature sensor, expansion valve 7841423 Pipe strap 7841424 Casing cover GH 2 medium and GH 3 large 7841426...
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Specification Operation: brine/water Type BW Two-stage 352.A 027 / 034 / 056 / 076 / 097 / Output data to EN 14511 (B0/W35, 5 K spread) Rated heating output 27.2 34.3 56.1 76.0 96.9 Cooling capacity 20.8 26.4 43.4 58.8 74.6 Power consumption 12.8...
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Specification (cont.) Operation: brine/water Type BW Two-stage Three-stage 352.A 353.A 114 / 132 / 156 / 172 / 198 / Output data to EN 14511 (B0/W35, 5 K spread) Rated heating output 114.2 131.9 170.2 Cooling capacity 88.4 101.5 119.2 153.3 Power consumption 25.9...
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13.5 18.0 23.0 Pressure drop (at min. flow mbar rate) Max. flow temperature °C Min. flow temperature °C Operation with ice stores including external demand requires an adjustment of parameters. Make such adjustments exclusively after reference to KWT or Viessmann.
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46.4 5 K) Pressure drop (at min. flow mbar rate) Max. flow temperature °C °C Min. flow temperature Operation with ice stores including external demand requires an adjustment of parameters. Make such adjustments exclusively after reference to KWT or Viessmann.
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Specification (cont.) Note ■ The specified flow rates are rounded ■ Output data to EN 14511 correspond up or down. to a temperature spread of 3 K at a ■ All technical details, with the exception brine inlet temperature of 0 °C and of starting currents, also apply to type brine outlet of –3 °C.
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Specification (cont.) Type BW Two-stage 352.A 027 / 034 / 056 / 076 / 097 / Refrigerant circuit Refrigerant R134A R134A R134A R134A R134A Refrigerant charge Number of compressors, re- Type ciprocating piston Permiss. operating pres- sure, high pressure side Permiss.
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The EC safety datasheet for R410A can be obtained from the Technical Services Note department of Viessmann Werke. ■ Output data to EN 14511 correspond to a temperature spread of 3 K at a brine inlet temperature of 0 °C and brine outlet of –3 °C.
All windows and external doors sealed Geothermal probes/well and connection lines fully installed Components for cooling mode fully installed (optional). Preferred appointment: Date Time Date Time All work ordered from Viessmann will be charged to me/us in accordance with the current Viessmann pricelist. Place/date Signature...
Certificates Declaration of conformity We, KWT Kälte-Wärmetechnik AG, member of the Viessmann Group, CH-3076 Worb SBB, declare as sole responsible body that the products Vitocal 350-G Pro, type BW 352.A027/BW 352.A027 SA, type BW 352.A034/BW 352.A034 SA, type BW 352.A056/BW 352.A056 SA, type BW 352.A076/BW 352.A076 SA, type BW 352.A097/BW 352.A097 SA,...
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Certificates Declaration of conformity (cont.) Worb SBB, 24/06/2013 KWT Kälte-Wärmetechnik AG Viessmann Group René Steiner...
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