Viessmann Vitocal 350-A AWHI 351.A14 Installation And Service Instructions Manual Download Page 21

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Please note

Prevent damage to the appliance during han-
dling.

Never

apply loads/weight to the top, front or

side panels of the appliance.

Please note

Steep tilting of the compressor in the heat pump
can result in appliance damage.
Max. tilting angle: 45° for a very short time

Please note

If transport brackets are not removed, they
cause vibrations and excessive noise.
Remove the transport brackets and replace the
screws.

Fig. 12

Installation sequence

Removing the transport brackets

5692878

Installation

Summary of Contents for Vitocal 350-A AWHI 351.A14

Page 1: ...nstallation and service instructions for contractors VIESMANN Vitocal 350 A Type AWHI 351 A Type AWHO 351 A Air water heat pump with electric drive 400 V VITOCAL 350 A 5692878 GB 11 2017 Please keep safe ...

Page 2: ... SVGW Safety instructions for working on the system Working on the system Isolate the system from the power supply e g by removing the separate fuse or by means of a mains isolator and check that it is no longer live Note In addition to the control circuit there may be several power circuits Danger Contact with live components can result in severe injuries Some components on PCBs remain live even ...

Page 3: ...ith the system can compromise its function Installing non authorised components and making non approved modifications or con versions can compromise safety and may inva lidate our warranty For replacements use only original spare parts supplied or approved by Viessmann Safety instructions Safety instructions cont 5692878 ...

Page 4: ... control panel 36 Attaching the connecting cables from the control unit in the control panel 38 Heat pump control unit electrical connections 39 Fitting the heat pump control unit and inserting cables 39 Attaching cables from the control panel in the control unit 43 Adapting the heat pump control unit 43 Inserting the coding card 45 Overview of electrical connections 46 Main PCB operational compon...

Page 5: ...sing 106 Front panels 106 Side panels 108 Silencer hood 110 Miscellaneous 112 Air module 114 Heat pump control unit 116 Electrical equipment 118 Type AWHO 351 A10 and AWHO 351 A14 118 Type AWHO 351 A20 120 Heat pump module 122 Base frame 126 8 Commissioning service reports Hydraulic parameter report 128 Control parameter report 128 9 Specification Specification 132 Sound transmission data 135 10 A...

Page 6: ...correctly Dispose of component at a suitable collec tion point Do not dispose of component in domestic waste The steps in connection with commissioning inspec tion and maintenance are found in the Commission ing inspection and maintenance section and identified as follows Symbol Meaning Steps required during commissioning Not required during commissioning Steps required during inspection Not requi...

Page 7: ...installed outside the building The hydraulic connection lines are routed below ground and must be frost proof Hydraulics To supply the secondary circuit either two circulation pumps secondary pump and circulation pump for cyl inder heating or 1 secondary pump and a 3 way diverter valve are connected On type AWHI the secondary pump can be built into the heat pump The remaining components are instal...

Page 8: ...nation by halogenated hydrocarbons e g as contained in paints sol vents or cleaning fluids and excessive dust e g through grinding polishing work Prevent consistently high humidity levels e g caused by continuous drying of washing Please note Overloading the floor can result in building dam age Observe the permissible floor load Total weight AWHI 351 A10 287 kg AWHI 351 A14 297 kg AWHI 351 A20 361...

Page 9: ... of the building and the wall If necessary fit a support For corner installation l h or r h discharge the wall outlets are the same size B A 1330 532 1330 935 c 830 990 g D C Fig 1 A Wall duct discharge side B Wall duct intake side C Plaster finish D Top edge finished floor Preparing for installation Internal heat pump cont 5692878 Installation ...

Page 10: ...ake side EPP H Plaster finish wall coating K Hydraulic and condensate connections M Heat pump N Appliance connector air duct on the discharge side EPP Dimension Vitocal 350 A type AWHI 351 A10 351 A14 351 A20 a mm 95 85 107 b mm 118 182 284 c mm 522 588 689 d mm 367 217 64 e mm 489 489 472 g mm 880 1020 1180 h mm 845 995 1148 Note Observe the minimum room height of 2100 mm Minimum clearances and d...

Page 11: ...ition wall if required See the following table N Number of duct parts wall ducts X Distance between wall openings inside the building Y Distance between wall openings outside the build ing Distances between wall openings X and Y in mm N Vitocal 350 A type AWHI Partition wall N required 351 A10 351 A14 351 A20 X Y X Y X Y 1 655 680 660 755 665 840 Yes 2 1005 1030 1010 1105 1015 1190 Yes 3 1355 1380...

Page 12: ... Air discharge optionally l h or r h side Hydraulic lines and condensate drain can be routed from the heat pump from the left or right They are always installed opposite the air discharge The connecting hoses can be shortened The stated dimensions a and b are for hose lengths in delivered condition Dimensions in mm Type a b c d AWHI 351 A10 489 367 880 891 AWHI 351 A14 489 217 1030 1041 AWHI 351 A...

Page 13: ... return lines in any area at risk from frost If the heat pump control unit and heating circuit pump are ready for operation the frost protection function of the heat pump control unit is enabled Drain the system if the heat pump is shut down or there is a prolonged power failure On heat pump systems where a power failure cannot be recognised holiday home operate the heating circuit with a suitable...

Page 14: ...erived from the air subject to temperature and relative humidity up to 20 l h via a DN 40 drain pipe which should be protected from frost and provide a steady fall If possible connect the condensate drain to a drain age or sewer system In this case provide a siphon with a backup level of at least 60 mm in the frost pro tected area Where the ground is able to absorb water the con densate can be soa...

Page 15: ...tion set accessories Hydraulic connection lines for heating water flow and heating water return G Condensate drain DN 40 on site H Soft ground gravel or crushed stone L Upstream direction of pipe from hydraulic connec tion set M Heat pump power cable P Underground channel V Recess in the foundations for routing the lines for heating water flow and return the condensate drain and the connecting cab...

Page 16: ...ion set accessories Hydraulic connection lines for heating water flow and heating water return G Condensate drain DN 40 on site H Soft ground gravel or crushed stone K Frost protection compacted crushed stone e g 0 to 32 56 mm thickness of layer subject to local requirements and building regulations M Heat pump power cable Note Before laying the concrete foundations trim the hydraulic connection p...

Page 17: ...aptor G 1 to Rp 1 supplied C Heating water return G 1 female thread Adaptor G 1 to Rp 1 supplied D Silencer hoods Dimensions in mm Type e f g h i AWHO 351 A10 655 456 500 1380 891 AWHO 351 A14 655 606 650 1530 1041 AWHO 351 A20 655 754 798 1700 1211 Preparing for installation External heat pump cont 5692878 Installation ...

Page 18: ... on site fully wired 5 15 or 30 m Control cable 230 V LV lead 42 V Note The maximum lead length is 30 m Extensions are not permissible O Hydraulic connection lines heating water flow and heating water return P Underground channel Q Wall duct with expanding mortar on site for hydraulic connection line R Moisture proof and waterproof wall ducts on site S Drain fill facility with shut off valve for d...

Page 19: ...n Tyfocor heat transfer medium which is based on ethylene glycol ready mixed down to 19 C light green Power cable M Observe the technical connection requirements imposed by your local power supply utility Run the power cable to control panel M outside the building as an SWA cable NYY or route an NYM cable inside a KG conduit Cable length required in the heat pump from top edge of foundation Min 2 ...

Page 20: ...5 mm2 N Heating circuit pump power cable 3 x 1 5 mm2 O Power cable for instantaneous heating water heater switching module 400 V 5 x 2 5 mm2 230 V 7 x 2 5 mm2 P Instantaneous heating water heater accessories R Secondary pump power cable 3 x 1 5 mm2 S Heating water buffer cylinder T Cylinder temperature sensor sensor lead 2 x 0 75 mm2 Required cable lead lengths For the heat pump control unit wall ...

Page 21: ...teep tilting of the compressor in the heat pump can result in appliance damage Max tilting angle 45 for a very short time Please note If transport brackets are not removed they cause vibrations and excessive noise Remove the transport brackets and replace the screws 1 2 Fig 12 Installation sequence Removing the transport brackets 5692878 Installation ...

Page 22: ...22 Fig 13 Installation sequence Type AWHI 351 A only Fitting the supplied floor mat 5692878 Installation ...

Page 23: ...23 Installation using type AWHI 351 A as an example 9x 3x 3x 3x 1 2 4 3 Fig 14 4 Required only for type AWHI 351 A Installation sequence Fitting the outer panels 5692878 Installation ...

Page 24: ...side panels with air discharge on the l h side delivered condition for type AWHI 351 A 5 3x 7 6 3x 3x 3x Fig 15 5 Required only for type AWHI 351 A Installation sequence Fitting the outer panels cont 5692878 Installation ...

Page 25: ...ge is on the right 3x 5 7 6 3x 3x 3x Fig 16 Note To facilitate installation apply a soapy solution to the edges of the side panel insulation 5 Required only for type AWHI 351 A Installation sequence Fitting the outer panels cont 5692878 Installation ...

Page 26: ...26 3x 8 9 3x 3x 3x Fig 17 Installation sequence Fitting the outer panels cont 5692878 Installation ...

Page 27: ...27 10 3x 3x 2x 11 Fig 18 Installation sequence Fitting the outer panels cont 5692878 Installation ...

Page 28: ...28 4 4x 4x 4x 3 2 1 2 2 Fig 19 Installation sequence Type AWHO 351 A only Fitting the silencer hoods 5692878 Installation ...

Page 29: ...urglar proof 1 Centre the wall outlets in the wall cut outs and plaster over correctly 2 Finish off the external part of intake and discharge side with weather grilles Levelling the heat pump Position the heat pump according to the details on page 8 and page 13 Align horizontally See the follow ing illustrations Secure heat pump type AWHO 351 A on foundations Installation sequence Fitting the top ...

Page 30: ...30 Type AWHI 351 A 1 Fig 22 Installation sequence Siting the heat pump cont 5692878 Installation ...

Page 31: ...site for limiting the maximum temperature of underfloor heating systems To ensure the minimum flow rate see specification fit an overflow valve in every heating circuit except single pipe heating circuits Equip the secondary circuit on site with an expansion vessel Installation sequence Siting the heat pump cont 5692878 Installation ...

Page 32: ...least 2 Check that the condensate can drain freely Remove any air pockets Type AWHI 351 A 1 2 3 B A C Fig 24 Note Hydraulic connections can be made on the left or right A Heating water flow DHW cylinder flow B Condensate hose C Heating water return DHW cylinder return 3 Pass the condensate hose from the heat pump out through the central opening Connect the conden sate hose to the on site drain con...

Page 33: ...gainst frost 6 Remove protective foil from sealing mat B Affix sealing mat B to the opening in the base plate Fitting the flow temperature sensor secondary cir cuit The flow temperature sensor for the secondary circuit is installed in the heating water flow inside the build ing Note If an instantaneous heating water heater is installed fit the flow temperature sensor for the secondary circuit in t...

Page 34: ...anel with electrical components B Internal earth conductor 1 Undo 2 screws at the bottom of the control panel cover 2 Pull the control panel cover off downwards and lift out upwards Note Undo internal earth conductor B prior to removing the cover completely Note In the delivered condition the coding card is affixed inside the control panel Remove the coding card and insert into the heat pump contr...

Page 35: ...ant circuit controller EEV K Internal heat pump Switching module instantaneous heating water heater accessories External heat pump The switching module for the instantaneous heat ing water heater is installed on the wall inside the building adjacent to the instantaneous heating water heater see separate installation instruc tions L Mains terminals 400 V for compressor and fan with contact shield a...

Page 36: ... left D E C B A F E Fig 30 Cable entry from the right F E C B A E Fig 31 A One cable entry each for LV lead and 230 V 400 V cables B Mains terminals C Power cable 400 V with cable fitting D Retaining clip for cables E Cable bracket cables secured with cable ties F Connecting cables with plugs LV lead 42 V and control cable 230 V from the heat pump control unit Installation sequence Control panel e...

Page 37: ...aling mat 2 Route the cables through the prefitted retainers Secure the LV lead and 230 V cables separately 3 Secure the cables below the front edge of the con trol panel with a loop see previous diagram to the cable bracket 4 Push the connecting lead cables LV lead 42 V and control cable 230 V from the heat pump con trol unit into the corresponding plug in connections on the distributor PCB insid...

Page 38: ... connecting cable B control cable 230 V onto the 7 pin plug in strip X2 and 15 pin plug in strip X1 6 Affix the individual cores of connecting cable B control cable 230 V to terminal X14 6 for the PE connection 7 Secure connecting cables B and F with 4 cable ties E to bracket C 8 Bundle all cores of connecting cable F close to plug D using cable ties This ensures that if a fault occurs for example...

Page 39: ...39 Fitting the heat pump control unit and inserting cables Wall mounting base and casing base fitting 2 1 Fig 34 Installation sequence Heat pump control unit electrical connections 5692878 Installation ...

Page 40: ... 3 7 8 1 A 5 X2 D 6 X3 C B X3 X2 4 B Fig 35 A Cross connect PCB B ON OFF switch plug in connection C Casing front D Controller and sensor PCB Installation sequence Heat pump control unit electrical connections cont 5692878 Installation ...

Page 41: ...41 Heat pump control unit open 1 3 2 Fig 36 Installation sequence Heat pump control unit electrical connections cont 5692878 Installation ...

Page 42: ...ables inserting and applying strain relief A B Fig 37 A Cables with moulded strain relief B On site cables leads Installation sequence Heat pump control unit electrical connections cont 5692878 Installation ...

Page 43: ...dary pump and or the instantaneous heating water heater accessories can be fitted inside type AWHI 351 A or outside type AWHI 351 A AWHO 351 A of the heat pump The circulation pump for cylinder heating can only be installed outside the heat pump sXF sYA BCD A Fig 39 The red cores connect the following termi nals A X6 6 211 2 B X6 4 211 4 C X6 2 211 3 D X6 1 224 4 Installation sequence Heat pump co...

Page 44: ...it see page 46 onwards Secondary pump Circulation pump for cylinder heating The following components are connected up in the heat pump control panel see separate installation instructions and page 34 onwards Instantaneous heating water heater Type AWHI 351 A Fig 42 E Instantaneous heating water heater accessories Red wires to be removed see fig 39 on page 43 D X6 4 211 4 Electrical connections for...

Page 45: ...the coding card Only insert the coding card that comes supplied with the heat pump B X31 A B Fig 45 A Coding card B Controller and sensor PCB Installation sequence Heat pump control unit electrical connections cont 5692878 Installation ...

Page 46: ...to the terminals and bundle tightly to the corresponding termi nals If 2 components are connected to the same terminal press both cores together in a single wire ferrule A B X5 X7 X2 X3 D C F1 X1 X31 X5 X6 X24 sXS sXF sXD sXG sYA sYS C B X6 F3 D F20 F16 F13 F14 F8 F12 F6 F7 F4 F0 aVG F3 Fig 46 A Cross connect PCB F1 Fuse 6 3 A slow X6 Red wires for matching the heat pump control unit to the system...

Page 47: ...ng commissioning see from page 73 Plug sYA Terminals Function Explanation 211 1 Fan Connection values Output 200 W Voltage 230 V Max switching current 4 2 A 211 2 Secondary pump In systems without a heating water buffer cylinder no other heating circuit pump is required see terminal 212 2 Connect the temperature limiter to restrict the maxi mum temperature for underfloor heating systems if install...

Page 48: ...ing water buffer cylinder bypass or heat pump in the case of dual alternative mode Connection values Output 130 W Voltage 230 V Max switching current 4 2 A Connecting a temperature limiter as a maximum temperature limiter for underfloor heating Connecting a general temperature limiter B M 1 C B X2 N A X1 Fig 47 Connecting the temperature limiter part no 7151 728 7151 729 B M 1 C B sÖ X2 N A X1 Fig...

Page 49: ...actor can be greater than specified However the breaking capacity of the corresponding relay must not be exceeded The stated current indicates the max switching cur rent of the switching contact observe the total cur rent of 5 A Controls for external heat source and central fault messages are unsuitable for safety LV Set the required parameters during commissioning see from page 73 Plug sXS Termin...

Page 50: ...he external heat generator Connection values contact load Voltage 230 V Max switching current 4 2 A Connect the high limit safety cut out Central heating In series to the secondary pump connection 211 2 In series for controlling external heat generators DHW reheating In series to the circulation pump for cylinder heating connection 211 4 High limit safety cut out for heat pump in conjunc tion with...

Page 51: ...230 V Max switching current 4 2 A See installation instructions for instantaneous heating water heater and instantaneous heating water heater switching module 224 6 Connection values Output 130 W Voltage 230 V Max switching current 4 2 A Connect cylinder loading pump and 2 way shut off valve in parallel Cylinder loading pump DHW side and M 2 way shut off valve 224 7 Connection values Output 100 W ...

Page 52: ...ting circuit M2 HC2 Signal mixer CLOSE Connection values Output 10 W Voltage 230 V Max control current 0 2 0 1 A 225 3 M2 Mixer motor control heating circuit M2 HC2 Signal mixer OPEN Connection values Output 10 W Voltage 230 V Max control current 0 2 0 1 A Cross connect PCB Set the required parameters during commissioning see from page 73 Signal and safety connections Terminals Function Explanatio...

Page 53: ...pool heating facility is connected to external H1 extension no other external function can be connected to external H1 exten sion X3 6 X3 7 G Power OFF Requires floating N C contact Closed No blocking safety chain continuous Open Blocking enabled Breaking capacity 230 V 0 15 A No jumper should be installed if a power OFF contact is connected Note No parameters need to be set As soon as the contact...

Page 54: ...ty 230 V 2 mA Note These or other external functions such as swimming pool heating cascade or external set value default can alternatively be connected via external H1 extension External H1 extension installation in structions If a swimming pool heating facility is connected to external H1 extension no other external function can be connected to external H1 exten sion X3 17 X3 18 MCB fuse F1 6 3 A...

Page 55: ...A remote control set the heating circuit assignment at the remote control External H1 extension Vitocom 100 communication interface Vitosolic 100 200 solar control units X5 X6 Terminals for connecting lead LV to the heat pump control panel See page 43 X24 Connection for LON communication module See LON communi cation module installation instructions X31 Slot for coding card See page 45 Swimming po...

Page 56: ...D Junction box on site E Fuses and contactor for circulation pump for swim ming pool heating accessories F Circulation pump for swimming pool heating accessories G 3 way diverter valve Swimming pool zero volt Charging the heating water buffer cylinder Cascade control via KM BUS Make connections to external extension H1 only according to the following diagram Installation sequence Heat pump control...

Page 57: ...extension H1 D Floating contact External demand E Lag heat pump 1 Connection at contact for External demand F Floating contact External demand G Lag heat pump 2 Connection at contact for External demand H Floating contact External demand K Lag heat pump 3 L Central fault message input lag heat pump N C contact X3 10 X3 11 triggers a message Installation sequence Heat pump control unit electrical c...

Page 58: ...tariff power OFF provide an additional cable e g 3 x 1 5 mm2 for the power OFF signal from the distribution board meter box to the heat pump con trol unit or Combine the cable for the power OFF signal and for the heat pump control unit power supply 3 x 1 5 mm2 in a single 5 core cable The assignment of the power OFF for compressor and or instantaneous heating water heater occurs via the type of co...

Page 59: ...ith power OFF possible for the heat pump control unit Recommended power cable 3 x 1 5 mm2 Recommended power cable with power OFF for compressor instantaneous heating water heater 5 x 1 5 mm2 Compressor power supply 400 V sealing economy tariff connection for compressor 1 3 2 Fig 56 1 Undo screws on contact shield C 2 Route 400 V power cable through cable fitting B and apply strain relief Installat...

Page 60: ...ower OFF The compressor is shut down during the power OFF time Recommended power cable 5 x 2 5 mm2 flexible Power supply with power OFF Power OFF without on site load disconnection The power OFF signal is connected directly to the heat pump control unit An active power OFF shuts down the compressor hard Parameter Output for instant heating water heater at power OFF 790A determines whether and at w...

Page 61: ...act open power OFF enabled F Backup fuse ripple control receiver G TNC system feed H Economy tariff meter Power OFF with on site load disconnection The power OFF signal is connected to the on site con tactor of the economy tariff power supply and in the heat pump control unit An active power OFF shuts down the compressor and the instantaneous heating water heater accessory hard Note Observe the te...

Page 62: ...ed with backup fuse H Economy tariff meter K TNC system feed Phase monitor if installed The phase monitor monitors the compressor power supply If the internal tolerance range is exceeded or under shot the phase monitor interrupts the safety chain via a floating contact The compressor stops The phase monitor automatically re enables the compressor power supply if the values return to within the spe...

Page 63: ...tages and the rotating field clockwise are OK Ph illuminates red Relay has responded Rotating field is anti clock wise All LEDs off One or more phases have dropped out U illuminates red Incorrect voltage on one or more phases Asy illuminates red Asymmetry on one or more phases Version 2 A B L1 L1 L2 L3 L1 L2 L3 L1 L2 L3 L2 L3 L1 L2 L3 N 11 21 22 24 12 14 Fig 61 LEDs explained in Fig 61 A Voltage U...

Page 64: ...onnections In the event of leaks switch off the appliance immediately Drain off liquid via the drain valve Check the seating of seal rings Always replace displaced seal rings Please note If a casing door is not securely closed this can lead to damage from condensation vibrations and excessive noise Seal the casing door so it is soundproof and dif fusion proof Danger The absence of system component...

Page 65: ...g the control panel 2 1 3 Fig 63 A Holes for type AWHI AWHO 351 A120 B Holes for type AWHI AWHO 351 A114 C Holes for type AWHI AWHO 351 A110 Installation sequence Closing the heat pump cont 5692878 Installation ...

Page 66: ...66 Fitting the front panel 1 2 Fig 64 Installation sequence Closing the heat pump cont 5692878 Installation ...

Page 67: ...hecking the expansion vessel and heating circuit pressure 71 6 Cleaning the interior 71 7 Checking the electrical connections for firm seating 8 Checking the compressor casing temperature 72 9 Commissioning the system 73 10 Closing the control panel heat pump and heat pump control unit 11 Instructing the system user 79 Commissioning inspection maintenance Steps commissioning inspection and mainten...

Page 68: ...ctrical fault All earth connectors must be reconnected The appliance and pipework must be connected to the equipotential bonding of the building Please note Commissioning immediately after installation can lead to appliance damage Wait at least 30 min between installing and commissioning the appliance Please note Refrigerant can escape when working on the refrigerant circuit Work on the refrigeran...

Page 69: ...t dis places air Unregulated escape of refrigerant in enclosed spaces can lead to breathing difficul ties and suffocation Ensure adequate ventilation in enclosed spaces Always observe regulations and guidelines on handling this type of refrigerant Danger Direct contact with refrigerant can be harmful to skin Wear safety goggles and protective gloves when working on the refrigerant circuit Commissi...

Page 70: ...cluding fill and top up water Flush the heating system thoroughly before filling Only fill with water of potable quality If the fill and top up water has a water hardness greater than 16 8 dH 3 0 mol m3 it must be soft ened e g using the small softening system for heat ing water See the Vitoset pricelist Please note Escaping liquids can lead to electrical defects Protect electrical components of t...

Page 71: ...s 1 If an on site shut off valve is installed close it Otherwise drain the heating system on the heating water side until the pressure gauge indicates 0 2 If the pre charge pressure of the expansion vessel is lower than the static system pressure top up with sufficient nitrogen to raise the pre charge pressure of the expansion vessel by 0 1 to 0 2 bar 10 to 20 kPa higher than the static system pre...

Page 72: ...ing condensate in the heat pump leads to appliance damage Check that the condensate can drain freely Flush the condensate drain if necessary 6 Assembly Steps 1 to 3 in reverse order Checking the electrical connections for firm seating Checking the compressor casing temperature 1 Switch ON the heat pump and operate it for at least 10 min Commissioning inspection maintenance Cleaning the interior co...

Page 73: ...e settings have to be made For this Coding level 1 is automatically active Please note Incorrect operation at Coding level 1 may result in damage to the appliance and the heat ing system Observe the service instructions for the Vitotronic 200 otherwise the appliance war ranty will be void Switch ON the ON OFF switch on the control unit The prompt Start commissioning appears auto matically on commi...

Page 74: ...vice menu can be activated from any other menu Press and hold OK å simultaneously for approx 4 s Deactivating the service menu The service menu remains active until it is disabled with Terminate service or if no key is pressed for 30 min Setting parameters using System scheme 7000 as an example To set a parameter first select the parameter group and then the parameter Service menu 1 Press and hold...

Page 75: ... 0 0 0 0 Instantaneous heating water heater 0 0 0 0 0 0 0 0 0 0 0 Swimming pool 0 0 0 0 0 0 0 0 0 0 Solar thermal system with Vitosolic 0 0 0 0 0 X Component selected 0 Component may be added Pumps and other components Pump component Parameter Setting Secondary pump for heating circuit A1 without heating water buffer cylinder no additional heating circuit pump required System definition Ó System s...

Page 76: ...HW circ Setting a time program Solar thermal system Solar Ó Type solar control unit 7A00 1 with Vitosolic 100 2 with Vitosolic 200 Circulation pump for DHW reheating External heat source Ó Enable external heat source 7B00 1 External heat source Ó Enable external heat source for DHW heating 7B0D 1 Remote control e g Vitotrol 200 A Heating circuit 1 Ó Remote control 2003 or Heating circuit 2 Ó Remot...

Page 77: ...essor and pumps System definition Ó Effect of external blocking on pumps compressor 701A 0 to 31 External blocking of the compressor mixer in control mode or CLOSED System definition Ó Effect of ext blocking on heat pump heating circuits 7015 0 to 8 System definition Ó Effect of external blocking on pumps compressor 701A 0 to 31 Central fault message No parameters need to be set Parameters for ins...

Page 78: ... Lag heat pump System definition Ó System scheme 7000 0 to 10 11 System definition Ó External extension 7010 1 0 System definition Ó Cascade control 700A 1 0 System definition Ó Number of lag heat pumps in cascade 5735 1 to 3 System definition Ó Output lag heat pump 700B 0 to 255 System definition Ó Use of heat pump in cascade 700C 0 to 15 System definition Ó Flow temperature for external demand 7...

Page 79: ... unique 1 to 99 unique Communication Ó LON system number 7798 1 to 5 1 to 5 as per lead heat pump Communication Ó LON fault manager 7779 1 to 99 unique 1 to 99 unique Closing the control panel heat pump and heat pump control unit Instructing the system user The system installer should hand the operating instruc tions to the system user and instruct the user in oper ating the system This includes a...

Page 80: ...h M Electronic expansion valve EEV N Manual air vent valve O 4 way diverter valve R High pressure sensor S Hot gas temperature sensor T Schrader valve low pressure side U Low pressure sensor V Suction gas temperature sensor Draining the heat pump on the secondary side 1 Close the on site BDF valve 2 Drain the heat pump at the drain valve in the sec ondary circuit flow Checking the sensors For sens...

Page 81: ...620 700 780 860 20 Fig 72 Check fuses For fuse locations see from page 46 Fuse F1 is located on the cross connect PCB Fuse F3 is located on the main PCB Fuses F1 and F3 6 3 A H slow 250 V Max power loss 2 5 W 1 Switch OFF the power supply 2 Opening the wiring chamber 3 Check fuses Replace if necessary Danger Incorrect or improperly fitted fuses can lead to an increased risk of fire Insert fuses wi...

Page 82: ...82 Troubleshooting Repairs cont 5692878 Maintenance ...

Page 83: ... within the assembly from this parts list B C D E F G 0004 A Fig 73 A Type plate B Casing assembly with sub assemblies Front panel side panel other C Air module assembly D Heat pump control unit assembly E Electrical equipment assembly F Heat pump module assembly G Base frame assembly Parts list type AWHI 351 A Overview of assemblies 5692878 Components ...

Page 84: ...84 Front panels 0002 0003 0006 0001 0004 0005 0007 0010 0007 0010 Fig 74 Parts list type AWHI 351 A Casing 5692878 Components ...

Page 85: ...1 Front panel top 0002 Front panel bottom 0003 Angled panel 0004 Top panel 0005 Back panel brace top 0006 Back panel bottom 0007 Vitocal 350 logo 0010 Closure Parts list type AWHI 351 A Casing cont 5692878 Components ...

Page 86: ...86 Side panels 0008 0008 0008 0004 0003 0005 0006 0007 0001 0002 Fig 75 Parts list type AWHI 351 A Casing cont 5692878 Components ...

Page 87: ...2 Side panel bottom left 0003 Side panel top right 0004 Side panel bottom right 0005 Back panel brace r h 0006 Back panel brace l h 0007 EPP wall outlet adaptor 0008 Diaphragm grommet Parts list type AWHI 351 A Casing cont 5692878 Components ...

Page 88: ...88 Miscellaneous 0010 0009 0008 0007 0006 0005 0004 0003 0002 0001 Fig 76 Parts list type AWHI 351 A Casing cont 5692878 Components ...

Page 89: ...ring 7 20 63 x 2 62 mm 0005 Push fit connector D 28 mm 0006 Installation and service instructions 0007 Operating instructions 0008 Wiring diagram 0009 Power circuit wiring diagram type AWHI 351 A20 0010 Power circuit wiring diagram type AWHI 351 A10 and AWHI 351 A14 Parts list type AWHI 351 A Casing cont 5692878 Components ...

Page 90: ...90 0007 0007 0003 0005 0003 0002 0001 0006 0004 0005 0008 Fig 77 Parts list type AWHI 351 A Air module 5692878 Components ...

Page 91: ... 0002 Front panel 0003 Side panel front r h l h 0004 Cover r h l h 0005 Side panel rear r h l h 0006 Condensate pan 0007 Grommets for condensate pan set 0008 Lid top Parts list type AWHI 351 A Air module cont 5692878 Components ...

Page 92: ...0006 0032 0031 0030 0007 0014 0013 0005 0004 0003 0008 0009 0011 0001 0019 0024 0010 0015 0022 0020 0021 0016 0012 0018 0002 0027 0026 0025 Fig 78 Parts list type AWHI 351 A Heat pump control unit 5692878 Components ...

Page 93: ...pply unit PCB 0013 Fuse holder 0014 Fuse 6 3 A slow 250 V 10 pce 0015 Casing back 0016 Casing front 0017 Front flap 0018 Fascia left 0019 Fascia right 0020 LV cover 0021 Supporting stay 0022 Hinges 0023 Outside temperature sensor 0024 Wall mounting bracket 0025 Plug for main PCB set 0026 Plug for expansion PCB set 0027 Plug for controller and sensor PCB set 0030 Operating instructions Vitotronic 2...

Page 94: ... 0010 0009 0008 0007 0033 0086 0031 0030 0029 0028 0027 0026 0025 0024 0006 0023 0022 0020 0005 0018 0019 0016 0017 0015 0014 0012 0013 0011 0010 0009 0008 0007 0004 0003 0002 0001 Fig 79 Parts list type AWHI 351 A Electrical equipment 5692878 Components ...

Page 95: ...lug lJ 0020 Control panel cable fittings 0022 Switching module cable set 0023 Cable harness high pressure 0024 Cable harness EEV module 0025 Compressor connecting cable 230 V 0026 Coil 4 way diverter valve 0027 Temperature sensor Pt500 0028 Low voltage cable harness 0029 Electronic expansion valve connecting cable 0030 Coupling relay 0031 Cable set instantaneous heating water heater 0032 Auxiliary...

Page 96: ...3 0031 0026 0025 0027 0086 0022 0028 0029 0024 0016 0012 0015 0013 0030 0003 0001 0011 0004 0019 0023 0010 0009 0008 0007 0020 0005 0006 0009 0008 0010 0007 0002 0088 Fig 80 Parts list type AWHI 351 A Electrical equipment cont 5692878 Components ...

Page 97: ...nable 0019 Plug lJ 0020 Control panel cable fittings 0022 Switching module cable set 0023 Cable harness high pressure 0024 Cable harness EEV module 0025 Compressor connecting cable 230 V 0026 Coil 4 way diverter valve 0027 Temperature sensor Pt500 0028 Low voltage cable harness 0029 Electronic expansion valve connecting cable 0030 Coupling relay 0031 Cable set instantaneous heating water heater 00...

Page 98: ...0040 0039 0037 0036 0030 0035 0033 0032 0031 0029 0028 0027 0026 0026 0025 0025 0024 0024 0022 0021 0020 0023 0017 0017 0016 0015 0014 0013 0012 0012 0020 0019 0017 0018 0015 0021 0014 0016 0013 0012 0011 0010 0009 0008 0007 0006 0005 0004 0002 0003 0001 Fig 81 Parts list type AWHI 351 A Heat pump module 5692878 Components ...

Page 99: ... D 28 internal 84 mm 0025 Spring clip DN 32 standard 0026 Gasket A 30 x 44 x 2 mm 0027 Hose 1 with bend 0028 Connection set 0029 CB pressure switch 31 2 bar 3 12 MPa 0030 Coil 4 way diverter valve 0031 Refrigerant line 4 way diverter valve condenser 0032 Refrigerant line compressor 0033 Condenser flow 0034 Flow 0035 Condenser return 0036 Refrigerant line suction line compressor 0037 Refrigerant li...

Page 100: ...t line refrigerant receiver filter dryer 0050 Tension clip 0052 Gasket 8 x 12 mm 50 x 5 mm 0053 Connector 22 x 16 mm 0054 Refrigerant line intermediate injection 0055 Connector 22 x 15 mm 0056 Flow switch 0057 Flow switch VKS32 external 0058 Compressor sight glass Parts list type AWHI 351 A Heat pump module cont 5692878 Components ...

Page 101: ...101 Parts list type AWHI 351 A Heat pump module cont 5692878 Components ...

Page 102: ...102 0007 0015 0003 0003 0014 0010 0006 0005 0012 0008 0014 0013 0011 0002 0001 0004 0003 0010 0009 Fig 82 Parts list type AWHI 351 A Base frame 5692878 Components ...

Page 103: ...se plate 0006 Anti vibration mounts set 0007 Adjustable foot D 46 M12 x 70 set 0008 Cover control panel 0009 Inlet mounting plate set 0010 Sound insulation mats set 0011 Fan mounting plate set 0012 Mounting brackets set 0013 Control panel set 0014 Hinge 0015 Fixing kit Parts list type AWHI 351 A Base frame cont 5692878 Components ...

Page 104: ...104 Parts list type AWHI 351 A Base frame cont 5692878 Components ...

Page 105: ...hin the assembly from this parts list B C D E F G A Fig 83 A Type plate B Casing assembly with sub assemblies Front panel side panel silencer hood other C Air module assembly D Heat pump control unit assembly E Electrical equipment assembly F Heat pump module assembly G Base frame assembly Parts list type AWHO 351 A Overview of assemblies 5692878 Components ...

Page 106: ...106 Front panels 0002 0003 0006 0001 0004 0005 0007 0010 0007 0010 Fig 84 Parts list type AWHO 351 A Casing 5692878 Components ...

Page 107: ...01 Front panel top 0002 Front panel bottom 0003 Angled panel 0004 Top panel 0005 Back panel brace top 0006 Back panel bottom 0007 Vitocal 350 logo 0010 Closure Parts list type AWHO 351 A Casing cont 5692878 Components ...

Page 108: ...108 Side panels 0002 0002 0004 0001 0006 0003 0001 0005 0002 Fig 85 Parts list type AWHO 351 A Casing cont 5692878 Components ...

Page 109: ...anel top with cover grille 0002 Grille cover for side panel 0003 Side panel bottom left 0004 Side panel bottom right 0005 Back panel brace l h 0006 Back panel brace r h Parts list type AWHO 351 A Casing cont 5692878 Components ...

Page 110: ...110 Silencer hood 0001 0002 0001 Fig 86 Parts list type AWHO 351 A Casing cont 5692878 Components ...

Page 111: ...111 Pos Part 0001 Left right silencer hood 0002 Rear silencer hood Parts list type AWHO 351 A Casing cont 5692878 Components ...

Page 112: ...112 Miscellaneous 0005 0004 0002 0001 0003 0010 0009 0008 0007 0006 0011 Fig 87 Parts list type AWHO 351 A Casing cont 5692878 Components ...

Page 113: ...x 2 62 mm 0005 Push fit connector D 8 mm 0006 Installation and service instructions 0007 Operating instructions 0008 Wiring diagram 0009 Power circuit wiring diagram type AWHO 351 A20 0010 Power circuit wiring diagram type AWHO 351 A10 and AWHO 351 A14 0011 Temperature sensor set Parts list type AWHO 351 A Casing cont 5692878 Components ...

Page 114: ...114 0007 0007 0003 0005 0003 0002 0001 0006 0005 0008 Fig 88 Parts list type AWHO 351 A Air module 5692878 Components ...

Page 115: ... Lid front 0002 Front panel 0003 Side panel front l h r h 0005 Side panel rear l h r h 0006 Condensate pan 0007 Grommets for condensate pan set 0008 Lid top Parts list type AWHO 351 A Air module cont 5692878 Components ...

Page 116: ...0006 0032 0031 0030 0007 0014 0013 0005 0004 0003 0008 0009 0011 0001 0019 0024 0010 0015 0022 0020 0021 0016 0012 0018 0002 0027 0026 0025 Fig 89 Parts list type AWHO 351 A Heat pump control unit 5692878 Components ...

Page 117: ...upply unit PCB 0013 Fuse holder 0014 Fuse 6 3 A slow 250 V 10 pce 0015 Casing back 0016 Casing front 0017 Front flap 0018 Fascia left 0019 Fascia right 0020 LV cover 0021 Supporting stay 0022 Hinges 0023 Outside temperature sensor 0024 Wall mounting bracket 0025 Plug for main PCB set 0026 Plug for expansion PCB set 0027 Plug for controller and sensor PCB set 0030 Operating instructions Vitotronic ...

Page 118: ... 0017 0016 0015 0001 0011 0026 0088 0027 0025 0086 0033 0022 0028 0029 0031 0004 0013 0014 0023 0030 0003 0024 0010 0009 0008 0007 0005 0020 0006 0010 0008 0032 0009 0007 0002 Fig 90 Parts list type AWHO 351 A Electrical equipment 5692878 Components ...

Page 119: ...Control panel cable fittings 0022 Switching module cable set 0023 Cable harness high pressure 0024 Cable harness EEV module 0025 Compressor connecting cable 230 V 0026 Coil 4 way diverter valve 0027 Temperature sensor Pt500 0028 Low voltage cable harness 0029 Electronic expansion valve connecting cable 0030 Coupling relay 0031 Cable set instantaneous heating water heater 0032 Auxiliary contact 003...

Page 120: ...86 0022 0028 0031 0029 0010 0009 0008 0007 0024 0023 0016 0018 0017 0015 0013 0014 0030 0003 0001 0011 0004 0005 0026 0025 0088 0020 0006 0010 0008 0009 0007 0002 Fig 91 Parts list type AWHO 351 A Electrical equipment cont 5692878 Components ...

Page 121: ...nable 0020 Control panel cable fittings 0022 Switching module cable set 0023 Cable harness high pressure 0024 Cable harness EEV module 0025 Compressor connecting cable 230 V 0026 Coil 4 way diverter valve 0027 Temperature sensor Pt500 0028 Low voltage cable harness 0029 Electronic expansion valve connecting cable 0030 Coupling relay 0031 Cable set instantaneous heating water heater 0034 Cable harn...

Page 122: ... 0039 0060 0029 0004 0042 0002 0020 0005 0012 0024 0017 0053 0048 0027 0043 0059 0040 0010 0044 0049 0009 0041 0052 0061 0027 0055 0056 0011 0030 0025 0017 0012 0024 0018 0015 0022 0006 0022 0018 0013 0016 0014 0021 0015 0037 0036 0007 0062 0001 0003 0031 0047 0047 0032 Fig 92 Parts list type AWHO 351 A Heat pump module 5692878 Components ...

Page 123: ...e G 0024 Connector D 28 internal 84 mm 0025 Spring clip DN 32 0026 Threaded part 1 x 1 0027 Gasket A 27 x 39 x 2 mm 0028 Hose 1 with bend 0029 CB pressure switch 31 2 bar 3 12 MPa 0030 Coil 4 way diverter valve 0031 Refrigerant line 4 way diverter valve condenser 0032 Refrigerant line compressor 0033 Condenser flow 0034 Flow 0035 Condenser return 0036 Refrigerant line suction line compressor 0037 ...

Page 124: ...m 0052 Gasket 8 x 50 x 5 mm 0053 Return connection set 0054 Flow connection set 0055 Thermal insulation return 0056 Thermal insulation flow 0057 Connector 22 x 16 mm 0058 Connector 22 x 15 mm 0059 Refrigerant line intermediate injection 0060 Flow switch 0061 Flow switch VKS32 external 0062 Compressor sight glass Parts list type AWHO 351 A Heat pump module cont 5692878 Components ...

Page 125: ...125 Parts list type AWHO 351 A Heat pump module cont 5692878 Components ...

Page 126: ...126 0007 0015 0006 0010 0003 0003 0014 0012 0005 0008 0014 0013 0004 0011 0001 0002 0010 0003 0009 Fig 93 Parts list type AWHO 351 A Base frame 5692878 Components ...

Page 127: ...on mat base plate 0006 Anti vibration mounts set 0007 Adjustable foot set 0008 Cover control panel 0009 Inlet ring mounting plate set 0010 Sound insulation mats set 0011 Mounting plate set 0012 Mounting brackets set 0013 Control panel 0014 Hinge 0015 Fixing kit Parts list type AWHO 351 A Base frame cont 5692878 Components ...

Page 128: ...tions Room temperature C Outside temperature C Temperature Cylinder temp top con stant Yes 1 K Secondary circuit flow temperature C Rising From To From To Temperature differential ΔT Flow temp secondary Return temp sec K 6 to 8 Control parameter report Parameter description Vitotronic 200 heat pump control unit service instructions System definition Parameter Code Factory setting Commission ing Sy...

Page 129: ...t heating water heater 7B01 1 Dual mode temperature external heat source 7B02 100 10 C Enable external heat source for DHW heating 7B0D 0 DHW Parameter Code Factory setting Commission ing Set DHW temperature 6000 500 50 C Min DHW temperature 6005 100 10 C Max DHW temperature 6006 600 60 C Hysteresis DHW temperature heat pump 6007 70 7 K Hysteresis DHW temperature booster heater 6008 100 10 K Start...

Page 130: ...oss header 7200 0 Temp in operating status fixed value for buffer cyl 7202 500 50 C Hysteresis temperature heating buffer cylinder 7203 50 5 K Max temperature buffer cylinder 7204 600 60 C Temp limit op status fixed value for buffer cylinder 7208 100 10 C Heating circuit 1 Parameter Code Factory setting Commission ing Standard room temperature 2000 200 20 C Reduced room temperature 2001 160 16 C R...

Page 131: ...temperature in party mode 4022 160 16 C Time Parameter Code Factory setting Commission ing Automatic changeover summertime wintertime 7C00 1 Start summertime month 7C01 3 Start summertime week 7C02 5 Start summertime day 7C03 7 Start wintertime month 7C04 10 Start wintertime week 7C05 5 Start wintertime day 7C06 7 Communication Parameter Code Factory setting Commission ing Heat pump number in casc...

Page 132: ...ontent l 5 0 5 5 6 0 Minimum flow rate l h 1100 1450 1700 Condenser pressure drop with connection pipes standard delivery mbar 50 90 120 kPa 5 0 9 0 12 0 Max flow temperature at 5 K spread At air intake temperature 20 C C 55 55 55 At air intake temperature 10 C C 65 65 65 Electrical values heat pump Rated voltage 3 N PE 400 V 50 Hz Max rated current A 10 14 18 3 Starting current with electronic st...

Page 133: ...ted heating output kW 10 60 14 50 18 50 Electrical power consumption kW 2 9 4 2 5 8 Coefficient of performance ε COP 3 60 3 50 3 20 Heating performance data to EN 14511 A7 W35 5 K spread Rated heating output kW 12 70 16 70 20 60 Power consumption kW 3 1 4 2 6 1 Coefficient of performance ε COP 4 00 3 80 3 40 Heat yield Max fan rating W 110 170 270 Max air volume m3 h 3500 4000 4500 Max permissible...

Page 134: ... 4 0 4 5 5 2 Global warming potential GWP 1774 1774 1774 CO2 equivalent t 7 1 8 0 9 2 Compressor Type Hermetically sealed scroll compressor with injection Oil in compressor Type Emkarate RL 32 3MAF Quantity of oil in compressor l 1 9 1 9 4 0 Dimensions Total length mm 1265 1265 1265 Total width mm 1380 1530 1700 Total height mm 1885 1885 1885 Total weight kg 325 335 400 Permiss operating pressure ...

Page 135: ... A 49 53 56 External discharge side Fan stage 1 dB A 39 45 51 Fan stage 2 night mode dB A 43 48 54 Fan stage 3 dB A 48 52 54 Type AWHO 351 A heat pumps installed outdoors 400 V appliances Type AWHO 351 A10 AWHO 351 A14 AWHO 351 A20 Sound power level LW A weighted total sound power level in heating mode at A7 3 K W35 1 K Fan stage 1 dB A 54 56 61 Fan stage 2 night mode dB A 54 57 63 Fan stage 3 dB ...

Page 136: ... System example 1 System example 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 Components for cooling mode fully installed optional Preferred appointment 1 Date Time 2 Date Time All work ordered from Viessmann will be charged to me us in accordan...

Page 137: ... 2002 12 EN 61000 3 2 2014 DIN 8975 1 1986 12 EN 61000 3 3 2013 EN 349 2008 EN 61000 3 11 2001 04 EN 378 2012 EN 61000 3 12 2005 09 EN 50090 2 2 2007 11 EN 62233 2008 EN 55014 1 2011 EN 62233 Corrigendum 1 2009 04 EN 55014 2 2009 ISO 12100 2010 EN 55022 2010 EN ISO 13857 2008 EN 60335 1 2002 A11 A1 A12 A2 A13 A14 2010 BGR 500 chapter 2 35 EN 60335 2 40 2003 A11 A12 A1 Corrigendum A2 2009 In accord...

Page 138: ...nd air vent valves Overview 80 Drain facility 18 19 E Electrical cables 18 Electrical connection 34 39 General information 8 Electrical connections Checking 72 Circulation pumps 49 Controller and sensor PCB 54 Expansion PCB 49 Electrical power consumption 132 133 Electric booster heater 77 Electric cables leads 15 16 18 Electricity meter 13 20 Enable external extension 78 Expansion PCB 49 Expansio...

Page 139: ...onents 75 Pumps 75 Report 128 Swimming pool water heating 78 Parameter setting 74 Partition wall 10 11 Parts list AWHO 351 A 105 Parts lists AWHI 351 A 83 Performance data heating 132 133 Permiss operating pressure 133 134 Phase asymmetry 63 Phase monitor 62 Version 1 63 Version 2 63 Version 3 64 Positioning AWHI 351 A 9 AWHO 351 A 14 Power cable 18 19 58 Instantaneous heating water heater 13 Powe...

Page 140: ...ight 133 134 U Underfloor heating 48 Underfloor heating circuit 48 Undervoltage 63 Use 6 Use of heat pump in a cascade 78 79 V VDE regulations 58 Vitocom 76 W Wall clearances AWHO 351 A 14 Wall duct 10 11 18 19 Wall ducts 19 Wall openings 10 11 Warranty 73 Water quality 70 Wiring diagram 20 Viessmann Limited Hortonwood 30 Telford Shropshire TF1 7YP GB Telephone 44 1952 675000 Fax 44 1952 675040 E ...

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Viessmann Vitocal 350-A AWHI 351.A14, Installation And Service Instructions Manual

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