Viessmann KWT Vitocal 350-G Pro BW 352.A027 Installation And Service Instructions For Contractors Download Page 101

Page: 101 / 132

101

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; compensators missing or inter-
nal springs not relaxed.

Troubleshooting

Repairs

(cont.)

5848 449 GB

Service

Summary of Contents for KWT Vitocal 350-G Pro BW 352.A027

Page 1: ...ctors 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 VITOCA...

Page 2: ...working on this system National installation regulations Statutory regulations regarding the prevention of accidents Statutory regulations regarding envi ronmental protection The Code of Practice of r...

Page 3: ...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...

Page 4: ...onnection heating circuits 28 Natural and active cooling 29 Hydraulic connection cooling water buffer cylinder 30 Hydraulic connection residual heat heat exchanger 32 DHW heating 33 Installation seque...

Page 5: ...5 Appendix Heat pump commissioning order 127 Certificates Declaration of conformity 128 Keyword index 130 Index Index cont 5848 449 GB...

Page 6: ...es Life cycle stages Responsible participating personnel Manufacture External personnel Manufacturer Delivery moving handling siting External personnel Manufacturer Logistics Electrician heating contr...

Page 7: ...risk to life Some compo nents on the PCBs will remain live even after the power supply has been switched off Isolate the system from its power supply e g at a sepa rate MCB fuse or mains isola tor ch...

Page 8: ...n line with trade association recommendations Work on the refrigerant circuit Danger Refrigerant circuits of heat pumps develop extremely low 25 C and very high 130 C temperatures Work on heat pumps c...

Page 9: ...ly work on the refrigerant cir cuit whilst wearing safety gog gles and gloves Note Only qualified refrigeration engineers should work on the refrigerant circuit Wear suitable protective cloth ing Safe...

Page 10: ...wo stage heat pumps Type BW 352 A027 352 A034 352 A056 352 A076 352 A097 352 A114 352 A132 352 A156 352 A027 SA 352 A034 SA 352 A056 SA 352 A076 SA 352 A097 SA 352 A114 SA 352 A132 SA 352 A156 SA Thre...

Page 11: ...tted are supplied separately e g flow switch tempera ture sensors The programming unit of the Vitotronic SPS is delivered loose inside the wir ing chamber and must be fitted and connected on site Unlo...

Page 12: ...ure the machine is not set down suddenly as this can dam age the pipework in particular 9 Never exceed the maximum tilt angle of 30 of the Vitocal 350 G Pro KWT K lte W rmetechnik AG Viessmann will no...

Page 13: ...gated cardboard Siting Installation room requirements Please note The installation room must be dry and free from the risk of frost Ensure ambient temperatures of 0 to 35 C Please note Avoid the risk...

Page 14: ...7 SA 16 m3 BW 352 A034 SA 20 m3 BW 352 A056 SA 28 m3 BW 352 A076 SA 40 m3 BW 352 A097 SA 52 m3 BW 352 A114 SA 64 m3 BW 352 A132 SA 76 m3 BW 352 A156 SA 96 m3 BW 353 A172 SA 108 m3 BW 353 A198 SA 144 m...

Page 15: ...on the heat pump on a base pre pared on site for the purpose of sound attenuation and even weight distribu tion Note In the case of installation in a corner the foundation areas or clearances to the w...

Page 16: ...eet Type BW 352 A027 SA BW 352 A034 SA BW 352 A056 SA 586 586 407 625 1900 900 G H D F Type BW 352 A076 SA BW 352 A097 SA BW 352 A114 SA BW 352 A132 SA 352 A156 SA 628 705 900 G H D F 628 628 2100 Pre...

Page 17: ...17 Type BW 353 A172 SA BW 353 A198 SA 705 900 G H D F 850 2800 850 850 Preparing for installation Siting cont 5848 449 GB Installation...

Page 18: ...056 BW 352 A027 SA to BW 352 A056 SA 400 V 230 V C 1848 750 1450 811 964 504 106 A D B 389 A Flow primary circuit brine inlet B Return primary circuit brine outlet C Return heating circuit D Flow heat...

Page 19: ...52 A114 SA 400 V 230 V A 2153 850 1650 911 969 509 311 C B D 525 A Flow primary circuit brine inlet B Return primary circuit brine outlet C Return heating circuit D Flow heating circuit Preparing for...

Page 20: ...W 352 A156 SA 2153 850 1650 911 582 487 380 526 947 1305 A C B D 400 V 230 V A Flow primary circuit brine inlet B Return primary circuit brine outlet C Return heating circuit D Flow heating circuit Pr...

Page 21: ...e outlet C Return heating circuit D Flow heating circuit Hydraulic connection requirements Install hydraulic connections on site stress free Make the hydraulic connections between several heat pumps o...

Page 22: ...r Z r T r P qQ 9 r W eU eQ eW eP qR qT qZ qU qE qP qQ iR M eI eT eR eZ eE 7 8 9 qQ qW iT 4 uP 5 6 2 1 8 7 wP wQ wW tP tP tW tQ iP iE iW uW iQ wR wE q P q Q q W q R q T q E w P w Q w W w R w T w E e P...

Page 23: ...rmal probe manifold qQ Safety assembly primary circuit qW Pressure switch primary circuit qE Frost stat qR System separation groundwater qT Flow switch groundwater qZ Filter groundwater qU Circulation...

Page 24: ...uit M2 w Q Flow temperature sensor w W Safety temperature sensor underfloor heating system w E 3 way diverter valve heating cooling w R Circulation pump HC2 w T 3 way mixer e P Underfloor heating Unde...

Page 25: ...p control unit 4 Primary pump 6 Outside temperature sensor 8 Expansion vessel 9 Geothermal probe qP Geothermal probe manifold qQ Safety assembly primary circuit qW Pressure switch primary circuit Prep...

Page 26: ...ump 6 Outside temperature sensor 8 Expansion vessel qQ Safety assembly primary circuit qW Pressure switch primary circuit qE Frost stat qR System separation groundwater qT Flow switch groundwater qZ F...

Page 27: ...Safety assembly heating circuit 8 Expansion vessel tP Heating water buffer cylinder tQ Buffer temperature sensor top tW Buffer temperature sensor bottom Hydraulic connection external heat generator P...

Page 28: ...W Outside temperature sensor wE System flow temperature sensor wR System mixer central heating tP Heating water buffer cylinder tQ Buffer temperature sensor top tW Buffer temperature sensor bottom Hyd...

Page 29: ...ling circuit M2 w Q Flow temperature sensor w W Safety temperature sensor underfloor heating system w E 3 way diverter valve heating cooling w R Circulation pump HC2 w T 3 way mixer e P Underfloor hea...

Page 30: ...rcuit qW Pressure switch primary circuit uP 3 way diverter valve cooling mode uQ Heat exchanger natural cooling cooling uW Temperature sensor cold water iT 3 way mixer natural cooling cooling Hydrauli...

Page 31: ...way mixer natural cooling cooling uQ Heat exchanger natural cooling cooling uW Temperature sensor cold water iP Cooling water buffer cylinder iQ Circulation pump chiller iW Buffer temperature sensor t...

Page 32: ...32 P P P M M M M 1 2 6 5 8 7 8 qQ 9 qP r T r P r W r Z r U r Q r O r R r E r I Preparing for installation Hydraulic connection residual heat heat exchanger 5848 449 GB...

Page 33: ...W 3 way diverter valve residual heat r E Motorised 2 way valve dry cooler shut off r R Motorised 2 way valve geothermal probe shut off r T Pressure switch residual heat r Z Return temperature sensor...

Page 34: ...miter eZ 3 way mixer eU DHW circulation pump eI Flow sensor DHW eO Cylinder temperature sensor bottom Note Permissible cylinder temperatures Top section Max 65 C Average cylinder temperature 60 C Size...

Page 35: ...front panel 2 Remove screws from the front panel and put them aside 3 Remove the front panel incl control unit and put against the r h side of the heat pump The maximum length of the connecting cable...

Page 36: ...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...

Page 37: ...3 Fit the side panels see the following page 4 Fit the front panel 5 Fitting the programming unit into the front panel 6 Terminate cables and connect the programming unit to the control unit see page...

Page 38: ...38 Fitting the casing panels 4 3 5 2 1 6 4 3 Installation sequence Siting the heat pump cont 5848 449 GB...

Page 39: ...ndary circuit flow Victaulic 2 C Primary circuit return heat pump water outlet Victaulic 3 D Secondary circuit return Victaulic 2 E Power supply 400 V 50 Hz F Power supply 230 V 50 Hz G Low voltage 42...

Page 40: ...rimary circuit couplings B Flexible connecting cable with anti vibration elements C Optional Flange with 2 secon dary circuit or 3 primary circuit thread D Securing hydraulic lines Installation sequen...

Page 41: ...secondary circuit or 3 primary circuit couplings B Adaptor with flange DN80 PN10 without anti vibration elements C Anti vibration compensators on site D Securing hydraulic lines Installation sequence...

Page 42: ...aptor D flanged Victaulic adaptor set as far as it will go into Victaulic coupling B 5 Close Victaulic coupling B flush and tighten until there is no more gap 6 Carry out a pressure test Connecting th...

Page 43: ...t the pri mary lines to the heat pump free of load and torque stresses The primary lines must not exert any pressure on the heat pump casing Please note Ensure the hydraulic connec tions on the primar...

Page 44: ...sing Please note Ensure the hydraulic connec tions on the secondary side are tight in order to prevent the formation of condensate inside the heat pump With line entries ensure the diaphragm grommets...

Page 45: ...close to the terminals as possible and bundle tightly to the corresponding terminals Secure cables with cable ties strain relief fittings This ensures that should there be a fault for example when det...

Page 46: ...rough the 230 V 400 V entries to the wiring chamber of the heat pump con trol unit Note Route LV leads and 230 V 400 V cables as far apart as possible 3 Route power cable for compressor through the 40...

Page 47: ...47 Overview part winding control panel G H A C D E F L N K B M Installation sequence Overview of electrical connections 5848 449 GB Installation...

Page 48: ...1 H Motor protection compressor 2 K MCB fuse primary and secondary pumps L Power supply unit control unit M Control MCB fuse N Earth busbar 4 5 6 3 2 1 1 Contactors for system components 2 Control re...

Page 49: ...ite 12X2 Floating alarm contact for compressor 2 Contact closed during oper ation Connection values Max voltage 250 V Max switching current 4 A AC1 Connect on site 12X4 Floating alarm contact for comp...

Page 50: ...switching current 9 A AC3 Connect on site Circuit protection from load MCB fuse 6F4 observe the max switching current of 9 A Terminals Function Explanation 21X1 Circulation pump groundwater Heat yiel...

Page 51: ...9 A AC3 Connect on site 30X1 Circulation pump heating circuit 3 Connection values Max output 4000 W 2200 W Voltage 400 V 230 V Max switching current 9 A AC3 Connect on site 23X1 Circulation pump load...

Page 52: ...ues Max output 4000 W 2200 W Voltage 400 V 230 V Max switching current 9 A AC3 Connect on site 40X2 Safety pressure switch brine pressure Residual heat Residual heat option Connect on site Insert jump...

Page 53: ...DHW cylinder option Connection values Max output 180 VA Voltage 24 VAC DC 0 10 V Connect on site 34X3 DC 35X5 AC Mixing valve natural cool ing Cold water diverter valve Natural cooling option Cold wa...

Page 54: ...free activation sig nal external heat generator Contact closed in the case of a demand External heat generator op tion Connection values Max voltage 250 V Max switching current 4 A AC1 Connect on site...

Page 55: ...nect on site 36X0 Diverter valve 1 cold water Cold water option Connection values Voltage 24 VDC Max switching current 4 A Connect on site 36X2 Diverter valve 2 cold water Cold water option Connection...

Page 56: ...ntact Closed Heat pump in operation Open Heat pump shut down There should be no jumper if a flow switch is connected Connect on site 38X4 External fault message Dry cooler Dry cooler option Requires f...

Page 57: ...n stage 2 not in operation 19X8 External demand Cooling heating mode Requires floating contact Closed stage 3 in operation Open stage 3 not in operation Note Insert a jumper if external demand and pow...

Page 58: ...gh pressure switch compressor 1 Connection values Voltage 24 VDC Wired at the factory 9X1 Winding protection compressor 2 Connection values Voltage 24 VDC Wired at the factory 9X3 High pressure switch...

Page 59: ...ly CV cables Sensor Terminals Sensor Type 15X2 Temperature sensor Outside temperature sen sor Connect on site Pt1000 PTC 27X1 Temperature sensor Cylinder heating top Connect on site DHW cylinder optio...

Page 60: ...der option Pt1000 PTC 22X8 Flow temperature sensor heating DHW cylinder Connect on site DHW cylinder option Pt1000 PTC 40X7 Temperature sensor HE re sidual heat brine inlet Connect on site Residual he...

Page 61: ...4X1 Temperature sensor suc tion gas Heat pump Wired at the factory Pt1000 PTC 14X2 Temperature sensor Evaporator inlet Wired at the factory Pt1000 PTC 14X4 Temperature sensor Evaporator outlet Wired a...

Page 62: ...ad to life threatening inju ries from electrical current and result in appliance damage Connect the power supply and implement all safety measures e g RCD circuit in accordance with the following regu...

Page 63: ...MCB fuse of no higher rating than 25 A Information regarding the compres sor power supply power circuit Please note Incorrect phase sequence can result in appliance damage Make the compressor power s...

Page 64: ...0 mm2 5 x 4 mm2 40 m BW 352 A056 SA 5 x 35 mm2 5 x 10 mm2 5 x 4 mm2 40 m BW 352 A76 SA 5 x 50 mm2 5 x 10 mm2 5 x 4 mm2 40 m BW 352 A97 SA 5 x 70 mm2 5 x 10 mm2 5 x 4 mm2 40 m BW 352 A114 SA 5 x 95 mm2...

Page 65: ...rcuit power supply and the cable for the power OFF signal can be combined in one 5 core cable Cable lengths in the heat pump plus wall clearance Type BW WW Heat pump control unit power supply 400 V 3...

Page 66: ...thout load disconnect This represents the delivered condition of the heat pump The power OFF signal is connected directly to the heat pump control unit The compressors are forced off when power OFF is...

Page 67: ...he DIP switches are set to suit the respective heat pump type Prior to commissioning compare and possibly adjust the DIP switch settings with the details in the separate Connec tion and wiring diagram...

Page 68: ...rrectly Seal cable grommets with adhe sive tape if necessary 1 Prior to closing the heat pump check the following Are all cables inside the wiring chamber securely fixed strain relief cable ties Has t...

Page 69: ...iting reports 70 3 Checking the refrigerant circuit for leaks 71 4 Charging and venting on the primary side 71 5 Filling and venting on the secondary side 71 6 Checking expansion vessels and the prima...

Page 70: ...lease note Wait at least 30 min between the installation and commissioning of the appliance to prevent equip ment damage Only qualified refrigeration engineers should work on the refrigerant circuit 1...

Page 71: ...i shells so that no air gap remains 2 Check the pre charge pressure of the expansion vessel 3 Charge the primary circuit with Viessmann heat transfer medium and vent Note The system must be protected...

Page 72: ...all gas kets Replace displaced gas kets 5 Check the system pressure and top up with water if required Minimum system pressure 0 8 bar Permiss operating pressure 2 5 bar Checking expansion vessels and...

Page 73: ...figuration procedure is described on the following pages along with screen shots Calling up the configuration menu 01 16 03 53 19 06 2013 15 0 C 24 0 C Flow temperature 38 0 C System ON Switch on the...

Page 74: ...enu 16 41 01 19 06 2013 Home page Plant System info General condition Choose a language Login Select Login Commissioning inspection maintenance Further details regarding the individual steps cont 5848...

Page 75: ...ollow Choose a language Plant Home page 0 0 0 User level 3 Logout Configuration Enter the service password This is SERVICE999 Configuration appears if the password has been entered correctly Select Co...

Page 76: ...riate system configuration To reset the configuration press Reset configuration System parameters Here you can adjust selected parameters that cannot be adjusted on the system screens Parameters are p...

Page 77: ...systems BW30x in the bottom right hand corner takes you to a selection screen with a further 30x types The arrow takes you to the next configuration screen if a system type has already been selected...

Page 78: ...electing the heat source Selection heat recovery 09 42 19 Boreholes glycol on evaporator Groundwater water on evaporator Next Back Commissioning inspection maintenance Further details regarding the in...

Page 79: ...t the communication properties If External control has been selected the screens for further system config uration will be skipped 08 Description External control options Essentially only the heat pum...

Page 80: ...are fixed Set values are adjusted in the detailed views of system components Set value is displayed in each case If Direct heating has been selected Direct set value appears in the centre of the syste...

Page 81: ...the detailed system view of the booster heater Heating circuit 1 3 Here you can set the number of heating circuits installed Each installed heating circuit appears on the system screen Adjustments to...

Page 82: ...W is heated by the system DHW circulation means a DHW circulation pump is available El heating means an electric booster is available Electric heating is used for reheating if the heat pump fails to r...

Page 83: ...er and the cooling circuits Set value is displayed in each case If Direct is selected Direct set value appears in the centre of the system overview OT outside temperature The cold water buffer cylinde...

Page 84: ...inder Cooling circuit 1 3 Here you can set the number of installed cooling circuits Installed cooling circuits appear on the system screen Regulated A mixer must be installed for every regulated cooli...

Page 85: ...ing via boreholes Selection of the residual heat function only for cooling mode only required for active cooling mode Determination of residual heat via dry cooler geothermal probes or a combina tion...

Page 86: ...control unit and as safety limits The values are initially preset and should only be modified if you have the appropriate technical knowledge Next Back Please note Set frost protection to at least 4 C...

Page 87: ...u have selected 08 30 25 Heat recovery Heating Setpoint Heating zone 1 Heating zone 2 Heating zone 3 Auxiliary heating Water heater Circulation Electric heating Boreholes Heating storage Slide Regulat...

Page 88: ...ter heater Circulation Electric heating Boreholes Heating storage by selection Regulated Unregulated Disabled No Yes Yes No The settings are adopted once they have been confirmed Note Please note Chec...

Page 89: ...ontrol settings Ethernet settings Modbus settings For security reasons the configuration screens can only be opened with a sufficiently high user level password Settings for External control Ethernet...

Page 90: ...ctions Type of control Direct control signals determines the type of control signals for external con trol Enable signal 1 and 2 Changeover signal cooling heating and Ana logue signal for the set valu...

Page 91: ...g function is switched off Control function External set value The set flow temperature is defaulted directly by external means or via Modbus Fixed set value The set values for heating and cooling are...

Page 92: ...the display setup for the display to function again Procedure Tap the display in a blank area of the screen until the setup menu appears Select Web Connection select Remote host IP enter a new IP and...

Page 93: ...d int or 32 bit signed int depending on parameter Save and back Modbus TCP Modbus UDP Modbus RS485 2 Up Down RS485 communication setting RS485 parity bit Communication interface Modbus Unit Identifier...

Page 94: ...contractors 20 0 C Day base room temperature 16 0 C Night base room temperature 2 0 Room setpoint factor to change heating curve 20 0 C 2 0 C Room setpoint factor to change heating curve Setpoint 24...

Page 95: ...ring commissioning the standard temperatures and the adjustment factor need to be set by the contractor The user adjustable set room temperature for day and night affects the flow temperature of the h...

Page 96: ...mperature is the average set or intended room tempera ture 20 Correct setting of parameter Change factor set room curve heating curve This factor determines the relationship between the room temperatu...

Page 97: ...18 56 17 04 2013 Plant 05 00 05 00 05 00 05 00 05 00 05 00 05 00 22 00 22 00 22 00 22 00 22 00 22 00 22 00 h h h h h h h Monday Tuesday Wednesday Thursday Friday Saturday Sunday Clock Day operation B...

Page 98: ...Low pressure sensor 4 Low pressure safety switch 5 Low pressure test port 6 High pressure safety switch com pressor 2 7 Compressor 2 8 Compressor 1 9 High pressure safety switch com pressor 1 qP Oil...

Page 99: ...ing circuit qI Primary circuit flow temperature sensor heat pump brine inlet qO Primary circuit return temperature sensor heat pump brine outlet wP Sight glass liquid line wQ Electronic expansion valv...

Page 100: ...ator Pt1000 Temperature sensors type Pt1000 Sensor connections at terminals and the controller 1600 1500 1400 1300 1200 1100 1000 900 800 Resistance in W Temperature in C 50 0 50 100 150 Checking MCB...

Page 101: ...ed 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 compensators missing or inter nal sp...

Page 102: ...ator 7841254 x 7841255 x 7841256 x 7841257 x 7841258 x Condenser 7841264 x 7841265 x 7841266 x 7841267 x 7841268 x Piston compressor 7841274 x 7841275 x 7841276 x 7841277 x 7841278 x Motor overload re...

Page 103: ...1296 x Filter dryer 7841299 x x 7841303 x x x Electronic expansion valve 7841300 x x 7841301 x x x Programming unit 7841304 x x x x x SPS standard module and extension module 7841305 x x x x x 7841306...

Page 104: ...25 x x x x x Circuit breaker 7841326 x x x x x 7841327 x x x x x 7841328 x x x x x Neutral conductor isolator 7841329 x x x x x NH fuse carriers 7841330 x x x x x NH fuse 7841333 x 7841334 7841335 x x...

Page 105: ...d 2 7841358 x x x 7841359 x x Side panel A B A 2 3 and B 2 3 7841361 x x x 7841362 x x x 7841363 x x 7841364 x x Fascia long short 7841365 x x x 7841366 x x x 7841367 x x 7841368 x x Allen key 7841370...

Page 106: ...426 x x Part no Vitocal 350 G Pro Type BW 352 A Type BW 353 A 114 132 156 172 198 Evaporator 7841259 x 7841260 x 7841261 x 7841262 x 7841263 x Condenser 7841269 x 7841270 x 7841271 x 7841272 x 7841273...

Page 107: ...x x Sight glass 7841296 x x 7841297 x x 7841298 x Filter dryer 7841299 x x x x x Electronic expansion valve 7841301 x x 7841302 x x x Programming unit 7841304 x x x x x SPS standard module and extens...

Page 108: ...x x x Diode 7841325 x x x x x Circuit breaker 7841326 x x x x x 7841327 x x x x x 7841328 x x x x x Neutral conductor isolator 7841329 x x x x x NH fuse carriers 7841330 x x x x x NH fuse 7841331 x x...

Page 109: ...hort 7841367 x x x 7841368 x x x x x 7841369 x x Allen key 7841370 x x x x x Profiled seal 7841371 x x x x x Edge protector 7841372 x x x x x Caps 7841373 x x x x x Spacer 7841374 x x x x x Locking bo...

Page 110: ...or 7841254 x 7841255 x 7841256 x 7841257 x 7841258 x Condenser 7841264 x 7841265 x 7841266 x 7841267 x 7841268 x Piston compressor 7841274 x 7841275 x 7841276 x 7841277 x 7841278 x Motor overload rela...

Page 111: ...x Sight glass 7841295 x x x 7837956 x 7841296 x Filter dryer 7841299 x x 7841303 x x x Electronic expansion valve 7841300 x x 7841301 x x x Programming unit 7841304 x x x x x SPS standard module and e...

Page 112: ...x x x Circuit breaker 7841326 x x x x x 7841327 x x x x x 7841328 x x x x x Neutral conductor isolator 7841329 x x x x x NH fuse carriers 7841330 x x x x x NH fuse 7841334 x x 7841335 x 7841336 x x Po...

Page 113: ...anel GH 1 and GH 2 7841356 x x x 7841357 x x Rear panel GH 1 and GH 2 7841358 x x x 7841359 x x Side panel A B A 2 3 and B 2 3 7841361 x x x 7841362 x x x 7841363 x x 7841364 x x Fascia long short 784...

Page 114: ...sing cover GH 1 small and GH 2 medium 7841425 x x x 7841426 x x Vitocal 350 G Pro Mat no Type BW 352 A Type BW 353 A 114 SA 132 SA 156 SA 172 SA 198 SA Evaporator 7841259 x 7841260 x 7841261 x 7841262...

Page 115: ...ture sensor 7841293 x x x x x Low pressure switch 7841294 x x x x x Sight glass 7841296 x x 7841297 x x 7841298 x Filter dryer 7841299 x x x x x Electronic expansion valve 7841301 x x 7841302 x x x Pr...

Page 116: ...n interface relay 7841324 x x x x x Diode 7841325 x x x x x Circuit breaker 7841326 x x x x x 7841327 x x x x x 7841328 x x x x x Neutral conductor isolator 7841329 x x x x x NH fuse carriers 7841330...

Page 117: ...x x x Rear panel GH 2 and GH 2 3 7841359 x 7841360 x x x x Side panel A 2 3 and B 2 3 7841363 x x x x x 7841364 x x x x x Fascia long and short 7841367 x x x 7841368 x x x x x 7841369 x x Allen key 7...

Page 118: ...32 SA 156 SA 172 SA 198 SA 7841422 x x x x x Temperature sensor expansion valve 7841423 x x x x x Pipe strap 7841424 x x x x x Casing cover GH 2 medium and GH 3 large 7841426 x x x 7841427 x x Parts l...

Page 119: ...3K m3 h 6 7 8 3 13 7 18 7 23 9 Pressure drop mbar 150 160 170 190 190 Min flow rate 1 m3 h 4 5 5 2 8 6 12 0 15 0 Max flow temperature C 25 25 25 25 25 Min flow temperature at nominal flow rate C 7 7 7...

Page 120: ...w rate dT 3K m3 h 28 3 32 4 38 1 42 4 48 Pressure drop mbar 270 270 270 280 280 Min flow rate 1 m3 h 18 21 24 0 27 0 31 0 Max flow temperature C 25 25 25 25 25 Min flow temperature at nominal flow rat...

Page 121: ...al flow rate spread 3 K m3 h 9 3 12 3 20 2 27 1 34 Pressure drop mbar 180 190 204 220 264 Max flow temperature C 25 25 25 25 25 Min flow temperature 2 C 8 8 8 8 8 Heating water secondary circuit Conte...

Page 122: ...42 50 Nominal flow rate spread 3 K m3 h 40 7 46 7 54 8 61 1 70 1 Pressure drop mbar 324 324 324 336 336 Max flow temperature C 25 25 25 25 25 Min flow temperature C 7 7 7 7 7 Heating water secondary...

Page 123: ...age 352 A 027 SA 034 SA 056 SA 076 SA 097 SA Electrical values heat pump Rated voltage compressor 3 PE 400 V 50 Hz Rated current compressor B0 W35 A 18 18 29 37 45 Starting current compres sor with pa...

Page 124: ...16 16 16 Permiss operating pres sure Primary circuit bar 6 6 6 6 6 Secondary circuit bar 6 6 6 6 6 Dimensions Total length mm 1800 1800 1800 2150 2150 Total width mm 820 820 820 911 911 Total height m...

Page 125: ...ent A 114 137 169 170 202 Electrical values control unit Max power consumption accessories kW 27 27 27 27 27 MCB fuse accessories A 40 40 40 40 40 Safety category IP rating IP20 IP20 IP20 IP20 IP20 Re...

Page 126: ...ata 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 The flow rate is greater by a multiple factor than the specified minimum flow rate...

Page 127: ...2 Sketch for alternative hydraulic scheme Heating circuits fully installed and filled Electrical installation completed Hydraulic lines fully thermally insulated All windows and external doors sealed...

Page 128: ...8975 EN 62233 2008 11 VDE 0700 366 EN 50 090 2 2 2007 11 EN 62233 Corr 1 2009 04 VDE 0700 365 EN 55 014 1 2007 06 EN ISO 12100 EN 55 014 2 2009 6 EN 292 T1 T2 EN 55 022 2008 5 EN 294 EN 60 335 2 40 2...

Page 129: ...129 Worb SBB 24 06 2013 KWT K lte W rmetechnik AG Viessmann Group Ren Steiner Certificates Declaration of conformity cont 5848 449 GB Service...

Page 130: ...ing components 49 50 51 52 Control unit door 101 Cylinder loading system 33 Cylinder temperature sensor 100 D Declaration of Conformity 128 DHW cylinder With cylinder loading system 33 DHW heating 33...

Page 131: ...perating pressure 72 Power OFF 66 Power supply 62 Pt500 100 Pumps 98 R Removing the transport brackets 36 Repairs 98 Repair work 70 Replacing seal rings 72 Required equipment 25 26 28 30 34 Return tem...

Page 132: ...5 7514846 7514847 7514848 7514849 7514850 7514851 Viessmann Limited Hortonwood 30 Telford Shropshire TF1 7YP GB Telephone 44 1952 675000 Fax 44 1952 675040 E mail info uk viessmann com Viessmann Werke...

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Viessmann KWT Vitocal 350-G Pro BW 352.A027, Installation And Service Instructions For Contractors

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