Viessmann Vitocal 242-S Installation And Service Instructions Manual Download Page 1

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Installation and service

instructions

for contractors

VIESMANN

Vitocal 242-S
Type AWT-AC 241.A04 to A13

Compact heat pumps, split version for heating and cooling opera-
tion

For applicability, see the last page

VITOCAL 242-S

5623 661 GB

10/2012

Please keep safe.

Summary of Contents for Vitocal 242-S

Page 1: ...tructions for contractors VIESMANN Vitocal 242 S Type AWT AC 241 A04 to A13 Compact heat pumps split version for heating and cooling opera tion For applicability see the last page VITOCAL 242 S 5623 661 GB 10 2012 Please keep safe ...

Page 2: ...g on this system National installation regulations Statutory regulations regarding the prevention of accidents Statutory regulations regarding envi ronmental protection Codes of practice of the relevant trade associations All current safety regulations as defined by DIN EN DVGW VDE and all locally applicable standards a ÖNORM EN and ÖVE c SEV SUVA SVTI SWKI and SVGW Working on the system Isolate t...

Page 3: ...Defective components must be replaced 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 Installing non author ised components and making non approved modifications or conversions can compromise safety and may invalidate our warranty For replacements use o...

Page 4: ...ction 45 Power supply 61 Closing the heat pump 68 Service instructions Commissioning inspection maintenance Steps commissioning inspection and maintenance 69 Further details regarding the individual steps 71 Troubleshooting Repairs 94 Parts lists internal unit Parts lists internal unit 107 Overview of assemblies internal unit 108 Parts not shown internal unit 109 Internal unit casing 109 Internal ...

Page 5: ...C 241 A10 A13 124 External unit hydraulics type AWT AC 241 A10 A13 126 Commissioning service reports Hydraulic parameter report 128 Control parameter report 128 Specification 136 Appendix Heat pump commissioning order 141 Declaration of conformity 142 Keyword index 143 Index Index cont 5623 661 GB ...

Page 6: ... ing system DHW heating with the integral DHW cylinder also through the utilisation of solar energy Any other use is considered inappropri ate Note Vitocal 242 S is intended exclusively for domestic use i e even people who have not had any instruction are able to oper ate the appliance safely Preparing for installation Application 5623 661 GB ...

Page 7: ...it 405 147 69 134 159 62 300 387 475 29 2051 2075 2047 600 680 61 111 454 564 666 506 A Opening for LV leads 42 V B DHW Preparing for installation Requirements regarding on site connections 5623 661 GB Installation ...

Page 8: ...uction from 10 to 6 mm is necessary down stream of the pipe bend reducer to supplied G Hot gas line 7 connection pipe supplied pipe bends 16 mm UNF thread For type AWT AC 241 A04 a reduction from 16 to 10 mm is necessary down stream of the pipe bend reducer to supplied H Heating water flow Cu 28 x 1 mm K Heating water return Cu 28 x 1 mm L Solar circuit return DN 20 pipe sleeve for multi connect s...

Page 9: ...e length 29 m 25 m 20 m 20 m or or Cable cross section 3 x 4 0 mm2 3 x 6 0 mm2 Max cable length 32 m 30 m Heat pump control unit inter nal unit 230 V Cable cross section Without power OFF contact 3 x 1 5 mm2 3 x 1 5 mm2 3 x 1 5 mm2 3 x 1 5 mm2 With power OFF contact 5 x 1 5 mm2 5 x 1 5 mm2 5 x 1 5 mm2 5 x 1 5 mm2 Instantaneous heating water heater Cable cross section 400 V 5 x 2 5 mm2 5 x 2 5 mm2 ...

Page 10: ...heating water heater X X X X X X X Swimming pool 0 0 0 0 0 0 Solar thermal system with integral solar control function 0 0 0 0 Cooling A1 HC1 0 0 0 0 M2 HC2 0 0 0 0 SKK 0 0 0 0 0 0 0 Electricity meter 1 phase 3 phase 0 0 0 0 0 0 0 0 Vitovent 0 0 0 0 0 0 0 0 X Component selected 0 Component may be added Preparing for installation Overview of possible system schemes cont 5623 661 GB ...

Page 11: ...3 8 3 9 oR iE oE oP oQ oW oE 2 F14 oE oE System example ID 4605415_1202_02 Note This scheme is a general example with out shut off valves or safety equipment This does not replace the need for local engineering Preparing for installation Designations in the system examples 5623 661 GB Installation ...

Page 12: ... 145 145 145 8 145 8 145 X3 8 3 9 A1 M2 1 29 3 2 F0 6 5 4 CW DHW 43 42 44 45 49 2 F21 2 212 4 28 27 2 212 3 2 X3 8 3 9 18 37 30 12 13 41 2 212 4 F6 2 211 5 89 15 2 X3 3 3 4 Note In cooling mode safeguard the minimum flow rate in the secondary circuit Open valves on the heating circuit distributor fully and permanently or install an overflow valve Preparing for installation System example ID 460541...

Page 13: ...ry circuit wU Hot gas line wI Liquid line wO External unit of the heat pump Vitocal 242 S DHW heating with heat pump eP DHW cylinder integral eQ Cylinder temperature sensor STS integral eU DHW circulation pump ZP accessories DHW heating with a solar thermal system rQ High limit safety cut out accessories rW Solar Divicon rE Solar circuit pump rR Collector temperature sensor KOL rT Solar collector ...

Page 14: ...ension kit Active cooling function AC qI Frost stat 230 V iE Contact humidistat 230 V iO 3 way diverter valve for heating cooling Heating circuit without mixer A1 HC1 oP Radiator heating circuit oQ Vitotrol remote control oZ Heating circuit pump Electrical installation scheme For an overview of the electrical connec tions and more detailed information regarding the PCBs see from page 49 and the se...

Page 15: ... M2 20 230 V 50 Hz 105 2 1 HK A1 HK M2 91 71 Low voltage 1 N PE 1 2 1 2 2 50 W 100 W L N 20 41 STB 212 4 UP 43 130 W 95 C 211 5 89 89 HK M2 X1 X3 8 X3 9 83 18 KM BUS distributor UV UV NTC 10 kΩ X3 4 X3 3 15 M 1 M 1 1 3 2 1 3 2 1 3 2 L N N M 1 1 3 2 M 1 M 1 M 1 Preparing for installation System example ID 4605415_1202_02 cont 5623 661 GB Installation ...

Page 16: ...N1 N1 L1 4 L1 L1 3 N PE 400 V 50 Hz N L2 4 L3 L1 X3 18 X1 1 X2 1 230 V 400 V Instantaneous heating water heater power supply Heat pump control unit power supply External unit connections C N L 29 4 kW COM 43 V 42 V 2 L1 N 1 N PE 230 V 50 Hz COM 29 7 kW COM 43 V 42 V 2 L1 N 1 N PE 230 V 50 Hz Li No Lo Ni 29 COM 12 V 2 L1 N 1 N PE 230 V 50 Hz N L L N C1 C2 10 13 kW 42 V Preparing for installation Sy...

Page 17: ...oster heaters for DHW heating 6014 1 Enable electric heaters for DHW heating 6015 1 Solar Solar control unit type 4 Instantaneous heating water heater Electr booster heater Enable instantaneous heating water heater 7900 1 Enable instant heating water heater for central heating 7902 0 Time prog elec heater Set time program see op erating instructions Cooling Cooling function 7100 3 Cooling circuit ...

Page 18: ...hed by warm air Avoid direct insolation When installing the unit where it is exposed to wind ensure that the wind cannot influence the fan area This could result in an air short circuit between the discharged and the inrushing air Strong wind can have a negative influence on the evaporator ventilation Please note An air short circuit during heating operation will result in the cooled discharged ai...

Page 19: ...ation on a floor Use supports accessories for floor standing installation Where such supports cannot be used install the external unit freestanding on a solid base of at least 100 mm height In difficult climatic circumstances temperatures below zero snow humidity install the appliance on a plinth of approx 300 mm height Take account of the weight of the external unit see following table Wall mount...

Page 20: ...Route electrical cables leads between the internal and external units free of stress Installation only on walls with high weight per area 250 kg m2 in other words not on lightweight walls roof structure etc When installing the unit on the floor use only the rubber mounts sup plied for wall mounting use the anti vibration mounts supplied with the wall mounting bracket set never use additional anti ...

Page 21: ...arge Type AWT AC Dimensions in mm a b c d Cable entry above ground level below ground level 241 A04 100 100 400 300 1000 241 A07 100 100 400 300 1000 241 A10 100 200 400 300 1000 241 A13 100 200 400 300 1000 Installation sequence Installing the external unit cont 5623 661 GB Installation ...

Page 22: ...22 Floor mounting 2 1 4x 4x A B C E D A Support for floorstanding installation accessory Installation sequence Installing the external unit cont 5623 661 GB ...

Page 23: ...ce during transportation Never put weight on top of the appliance Installation room requirements Please note The installation room must be dry and free from the risk of frost Ambient temperatures of 0 to 35 ºC must be ensured Please note Avoid risk of explosion due to dust gases and vapours in the installation room Please note Observe the permissible floor load Align the appliance horizon tally If...

Page 24: ...ries maintain a wall clear ance of approx 80 mm Minimum room height h Installation h in mm Without pre assembly DHW connection set ac cessories 2250 With pre assembly DHW connection set accesso ries 2350 Observe engineering informa tion Vitocal technical guide Handling The cylinder module can be removed during transport Please note Avoid damaging the appliance during handling Never put weight on t...

Page 25: ...25 Removing the cylinder module 2x 3 1 4 5 2 Installation sequence Installing the internal unit cont 5623 661 GB Installation ...

Page 26: ...26 6 8 P301 P501 P303 P302 X25 F23 F6 7 Installation sequence Installing the internal unit cont 5623 661 GB ...

Page 27: ...27 SLP N 9 11 aCH sG lJ 10 Installation sequence Installing the internal unit cont 5623 661 GB Installation ...

Page 28: ...28 X20 2x 16 17 2x 12 14 18 13 15 Installation sequence Installing the internal unit cont 5623 661 GB ...

Page 29: ...29 2x 4x 4x 6x 21 19 20 22 Installation sequence Installing the internal unit cont 5623 661 GB Installation ...

Page 30: ...30 2x 4x 23 24 26 25 Note Do not damage sealing tape A when removing the cylinder module Installation sequence Installing the internal unit cont 5623 661 GB ...

Page 31: ... Make tight hydraulic connec tions between the heat pump module and cylinder module With pipe knock outs ensure diaphragm grommets C are seated correctly see follow ing illustration Please note Seal the appliance so it is soundproof and impermea ble The sealing tape on the side panels must be in close con tact with sealing faces B on the casing see following illus tration Installation sequence Ins...

Page 32: ...32 Installation sequence Installing the internal unit cont 5623 661 GB ...

Page 33: ...external unit Routing refrigerant lines Vitocal 242 S type AWT AC 241 A04 241 A07 241 A10 241 A13 Refrigerant lines Min line length 3 m 3 m 3 m 3 m Max line length 20 m 30 m 30 m 30 m Max height differential internal unit external unit 10 m 15 m 15 m 15 m Note No topping up is required for line lengths between 3 and 12 m 5000 5000 B C D E A Example type AWT AC 241 A07 A Internal unit B External un...

Page 34: ...th entry points above ground level B C A D Note Route connecting cables and refrigerant lines separately A Pipe bends as vibration compensa tors B Clips with EPDM lining C Cable entry e g drainage pipe with thermal insulation D Electrical cables leads internal external unit Installation sequence Connecting refrigerant lines cont 5623 661 GB ...

Page 35: ...nal unit 1 Type AWT AC 241 A04 and A07 Remove the side cover see page 59 C D C D 4 2 3 2x Example type AWT AC 241 A04 C Liquid line D Hot gas line Installation sequence Connecting refrigerant lines cont 5623 661 GB Installation ...

Page 36: ...e the pipes Tighten nuts with the following torques Type AWT AC Line Connection to external unit Torque in Nm 241 A04 Liquid line 7 6 mm UNF 14 18 Hot gas line 7 12 mm UNF 50 62 241 A07 Liquid line 7 10 mm UNF 33 42 Hot gas line 7 16 mm UNF 63 77 241 A10 Liquid line 7 10 mm UNF 33 42 Hot gas line 7 16 mm UNF 63 77 241 A13 Liquid line 7 10 mm UNF 33 42 Hot gas line 7 16 mm UNF 63 77 Connection to t...

Page 37: ... pipes Therefore hold the pipe open ings downwards or temporarily plug them Note The refrigerant lines of the internal unit are filled with nitrogen overpressure 2 bar If using Euro flanged adaptors solder the connections using shielding gas Installation sequence Connecting refrigerant lines cont 5623 661 GB Installation ...

Page 38: ...nal unit connections and secure the pipe bends with the short side Insulate them to provide protection from heat and vapour diffusion Note The long side of the pipe bends must point upwards Pipe bends must not be positioned diagonally Check that the flared connections are firmly seated 4 Slide the supplied union nuts UNF for liquid line UNF for hot gas line over the open end of the pipe bends Inst...

Page 39: ...ce twin nipple with union nuts Note Flare the pipe end of the hot gas line by approx 0 5 mm Connection pieces must not be positioned diagonally Check that the flared connections are firmly seated Installation sequence Connecting refrigerant lines cont 5623 661 GB Installation ...

Page 40: ...r liquid line UNF for hot gas line over the open end of the refrigerant lines from the exter nal unit Flare the refrigerant lines from the external unit Secure the refrigerant lines from the external unit onto the connec tion pieces using the union nuts Tighten nuts with the following torques Type AWT AC Line Connection to internal unit Torque in Nm 241 A04 Liquid line 7 6 mm UNF with reducer x 14...

Page 41: ...internal unit Torque in Nm 241 A13 Liquid line 7 10 mm UNF 33 42 Hot gas line 7 16 mm UNF 63 77 Connecting the secondary circuit Opening the casing door 1 Installation sequence Connecting refrigerant lines cont 5623 661 GB Installation ...

Page 42: ...ends from secondary circuit connection set accessories see separate installation instructions Symbol Meaning Connection Heating water return Cu 28 x 1 mm Heating water flow Cu 28 x 1 mm Installation sequence Connecting the secondary circuit cont 5623 661 GB ...

Page 43: ... or to the secondary circuit connection set accessory Connection set installation instructions 3 Fill and vent the secondary circuit 4 Thermally insulate pipes inside the building Note For underfloor heating circuits install a temperature limiter to restrict the maximum temperature in the under floor heating system see chapter Connecting a temperature limiter as a maximum temperature limiter in un...

Page 44: ...e connection M Non return valve pipe separator N Drain valve O Cold water P Drinking water filter R Pressure reducer Information on drinking water filter According to DIN 1988 2 a drinking water filter should be installed in systems with metal pipework We also recom mend the installation of a drinking water filter when using plastic pipes according to DIN 1988 to prevent contaminants entering the ...

Page 45: ...midistat Electrical connection 230 V 0 5 A Installation inside the room to be cooled at the cooling water flow remove thermal insulation if required If several rooms with different relative humidity are part of the cooling circuit fit and connect several contact humidi stats in series Switching contacts as N C contacts Electrical connection Danger Damaged cable insulation can cause injury and dama...

Page 46: ... error for example when detaching a wire the wires can not drift into the adjacent voltage area Note If two components are connected to the same terminal both cores must be pressed together into a single wire fer rule Please note In terms of safety the BUS cable for the internal external unit 12 V or 43 V does not count as a LV lead The BUS cable must be routed together with the 230 V cables Insta...

Page 47: ...47 Internal unit Routing electric cables to the wiring chamber 400 230 V 42 V 42 V Installation sequence Electrical connection cont 5623 661 GB Installation ...

Page 48: ...e connecting cables sensors KM BUS 42 V D Type AWT AC 241 A10 and A13 12 V BUS cable Routing in the 230 V voltage range for connec tion see page 60 E Type AWT AC 241 A04 and A07 43 V BUS cable Routing in the 230 V voltage range connection see page 60 F Heat pump control unit power cable 230 V Installation sequence Electrical connection cont 5623 661 GB ...

Page 49: ...OM COM 43 V F101 X3 X2 X1 F1 6 7 8 9 F3 P202 P203 sYS sYA D F E B A F12 X31 X25 X15 F27 F8 F6 F20 C 3 4 aVG F23 F14 F16 F21 F13 F0 F4 sVA F11 F26 F7 X24 X18 J3 J4 1 1 N 18 1 1 Installation sequence Electrical connection cont 5623 661 GB Installation ...

Page 50: ...rmation regarding the connection values The specified output is the recommen ded connected load The total output of all components con nected directly to the heat pump con trol unit must not exceed 1000 W e g pumps valves message facilities contactors If the total output is 1000 W the indi vidual rating of a component e g pump valve message facility contac tor can be greater than specified However...

Page 51: ...ves for heating water buffer cylinder bypass in cooling mode Connection values Max output 10 W Voltage 230 V Max switching current 4 2 A Connect the 3 way diverter valves for the bypass circuit in parallel Plug sYS Terminals Function Explanation 212 2 A1 Heating circuit pump heat ing circuit without mixer A1 This pump is connected in addition to the secondary pump if a heating water buffer cylinde...

Page 52: ...ge 230 V Max switching current 4 2 A Connect the high limit safety cut out to the solar circuit pump in series see high limit safety cut out installation instruc tions Connecting a temperature limiter as a maximum temperature limiter for under floor heating Connecting a general temperature limiter B M 1 C B X2 N A X1 Connecting the temperature limiter part no 7151 728 7151 729 B M 1 C B sÖ X2 N A ...

Page 53: ...28 7151 729 B to mixer extension kit M 1 C B A sÖ sÖ A Connect plug sÖ to mixer extension kit B Temperature limiter C Heating circuit pump for heating cir cuit with mixer Internal unit Expansion PCB on main PCB function compo nents 230 V Make no on site connections Internal unit Luster terminals message and safety connections Set the required parameters during com missioning see from page 83 Insta...

Page 54: ... Closed Heat pump in operation Open Heat pump shut down Breaking capacity 230 V 0 15 A Remove jumper when making this connec tion Note No parameters need to be set The compressor is forced off as soon as the contact opens The supply voltage to the respective components is switched off by the pow er OFF contact signal For the instantaneous heating water heater the stages to be switched off can be s...

Page 55: ...2 F0 3 Radio clock receiver DCF F4 Buffer temperature sensor top NTC 10 kΩ F11 Contact humidistat 24 V Note If a 230 V contact humidistat connection at X3 8 X3 9 is used for cooling insert a jumper otherwise the heat pump will not start message CA Protectn device prim ry F13 System flow temperature sensor downstream of heating water buffer cylinder NTC 10 kΩ F14 Flow temperature sensor cooling cir...

Page 56: ...Jumper for terminator Modbus 2 Terminator enabled delivered condition Terminator disabled J4 Jumper for setting master slave Modbus 2 Heat pump control unit is slave Heat pump control unit is master delivered condi tion X18 Modbus 1 Connection for Vitovent 300 F X24 Connection for LON communication module see LON communication module installation instructions X31 Coding card slot Swimming pool hea...

Page 57: ...g pool heating accessory E Jumper F 3 way diverter valve for swimming pool zero volt charging the heat ing water buffer cylinder G Circulation pump for swimming pool heating accessory H Temperature controller for regulat ing the swimming pool temperature floating contact 230 V 0 1 A accessory K Connection to controller and sensor PCB Installation sequence Electrical connection cont 5623 661 GB Ins...

Page 58: ...e AWT AC 241 A10 and A13 P203 BUS connection 43 V to external unit for type AWT AC 241 A04 and A07 Note Only one BUS connection should be connected Do not interchange the BUS connec tion wires between the internal and external units Route the BUS connecting cable in the 230 V voltage area Installation sequence Electrical connection cont 5623 661 GB ...

Page 59: ...04 241 A07 241 A10 and A13 A A A A Wiring chamber BUS connection to the internal unit Note Do not interchange the BUS con nection wires between the internal and external units Compressor power supply Installation sequence Electrical connection cont 5623 661 GB Installation ...

Page 60: ... N L C2 C1 12V COM COM 43V A B C A Wiring chamber external unit see page 59 B BUS cable between the external and internal unit Recommended cable 3 x 1 5 mm2 The cores are not interchangeable C AVI PCB in the internal unit see page 50 Note Route BUS cable for internal external unit in the 230 V voltage area Installation sequence Electrical connection cont 5623 661 GB ...

Page 61: ...f component earthing can lead to serious injury from electric current if an electri cal fault occurs Connect the appliance and pipe work to the equipotential bonding of the building in question Danger Incorrect core allocation can result in serious injury and dam age to the appliance Never interchange cores L and N In negotiations with your power supply utility different supply tariffs for the mai...

Page 62: ...hat are not to be connected to the heat pump control unit connect the power supply with the same phase as the heat pump control unit we recom mend using the same fuse MCB Connection to the same fuse MCB provides additional safety when the power is switched off Observe the power consumption of the connected consumers Heat pump control unit power supply 230 V X3 9 16 16 F1 T6 3AH 18 N L1 8 7 6 N N 3...

Page 63: ... 2 5 mm2 max 29 m 3 x 2 5 mm2 max 25 m 3 x 2 5 mm2 max 20 m 3 x 4 0 mm2 max 20 m or 3 x 4 0 mm2 max 32 m 3 x 6 0 mm2 max 30 m Fuse protection B20A B20A B20A B32A Economy tariff and power OFF can be used No parameters need to be set when using economy tariff with power OFF The compressor is shut down during the power OFF period During power OFF the diagnostic functions for the external unit are not...

Page 64: ... 50 Hz L1 N L1 L3 N N N L1 L2 L1 A A B B A Internal unit wiring chamber see chapter Overview of connections Internal unit B Jumpers Recommended power cable 400 V 5 x 2 5 mm2 230 V 7 x 2 5 mm2 Max fuse protection 16 A Economy tariff and power OFF can be used Installation sequence Power supply cont 5623 661 GB ...

Page 65: ...levant power supply util ity X3 7 X3 6 3 3 4 4 3 3 N 3 N 4 kWh kWh 5 3 400 V 7 230 V X3 18 X2 1 X1 1 Diagram excluding fuses and RCD A Heat pump control unit internal unit luster terminals see chapter Over view of connections Internal unit B Instantaneous heating water heater C Heat pump compressor external unit D Heat pump control unit power sup ply see chapter Heat pump control unit power supply...

Page 66: ...power OFF 790A has no effect Note Observe the technical connection condi tions of the relevant power supply util ity 3 3 4 4 3 3 N 3 N 4 kWh kWh 3 7 5 400 V 230 V X3 7 X3 6 X3 18 X2 1 X1 1 Diagram excluding fuses and RCD A Heat pump control unit internal unit luster terminals see chapter Over view of connections Internal unit B Instantaneous heating water heater if installed C Heat pump compressor...

Page 67: ...nction with own energy consumption Without power OFF kWh G F L kWh F L E kWh N E1E2 D D L1 L1 L2 L2 L3 L3 C A M N N A D H K M F B F A Heat pump B Additional consumers in the house hold powered by self generated electricity C Electricity meter D Inverter E Isolator for the PV system F Terminal Installation sequence Power supply cont 5623 661 GB Installation ...

Page 68: ...he heat pump Please note Seal the appliance so it is sound proof and diffusion proof On pipe and hose outlets ensure the thermal insulation is seated correctly Danger The absence of component earthing can lead to serious injury from electric current if an electri cal fault occurs Attach earth conductor to front panel and side panel 1 Close casing door in reverse order to page 41 Note Due to the so...

Page 69: ...tightness 76 8 Filling and venting the secondary side 77 9 Filling and venting the solar circuit 79 10 Checking expansion vessel and heating circuit pressure 79 11 Cleaning the DHW cylinder 79 12 Replacing the magnesium anode 81 13 Checking electrical connections of the internal unit for firm seating 14 Checking that condensate can drain away freely from the external unit condensate pan 15 Checkin...

Page 70: ... pump type on the type plate of the internal unit as per external unit type plate 23 Checking the heat pump for unusual noises e g operating noise of fan compressor or pump venting again if required 24 Checking the system function e g actuators temperatures heat meter if applicable 92 25 Instructing the system user 93 Commissioning inspection maintenance Steps commissioning inspection and cont 562...

Page 71: ...due to electric shock and component damage in the event of an electrical fault All earth connectors must be reconnected Please note Wait at least 30 min between the installation and commissioning of the appliance to prevent equip ment damage Work on the refrigerant circuit may only be carried out by certi fied personnel in accordance with EC Directives 842 2006 and 303 2008 1 Remove front panel se...

Page 72: ...C Danger Direct contact with refrigerant can cause skin damage Wear safety goggles and protec tive gloves when working on the refrigerant circuit Please note Before evacuating the refrigerant lines and the internal unit check all connections for tightness with leak detection spray Keep the valves on the external unit shut and fill the system with nitrogen through the service valve The test pressur...

Page 73: ...id line D Fill valve E Service valve Schrader valve For type AWT AC type 241 A07 the service valve is located at the connection of the liquid line F Hot gas line Commissioning inspection maintenance Further details regarding the individual steps cont 5623 661 GB Service ...

Page 74: ...ond open ended spanner 3 Start the vacuum pump At the pressure gauge set open the valve to the vacuum pump and the valve to the hot gas connection 4 After approx 5 min open the valve to the vacuum gauge Leave the vacuum pump running until almost 0 bar is indicated on the vac uum gauge at least 30 min Note The vacuum pump runtime will depend on the ambient conditions 5 Close the valve on the pressu...

Page 75: ...nd of the filling hose from the external unit service valve 2 Fit the union nut with copper cap to the service valve of the external unit torque 15 to 20 Nm 3 Unscrew the caps on the external unit fill valves open both fill valves and refit the caps Note When the heat pump starts both fill valves must be open Line lengths 12 m to 30 m 1 Connect hose between pressure gauge set and refrigerant bottl...

Page 76: ... air Uncontrolled escape of refrigerant R410A in enclosed spaces can result in dif ficulties in breathing and suffoca tion Ensure adequate ventilation in enclosed rooms Observe and adhere to regula tions and guidelines about han dling refrigerant Danger Direct contact with refrigerant can harm skin Wear safety goggles and protec tive gloves when working on the refrigerant circuit Check all connect...

Page 77: ... water Only use fill water of potable quality Soften fill water with a hardness above 16 8 dH 3 0 mol m3 e g with the small softening system for heating water see the Viessmann Vitoset pricelist Please note To prevent equipment damage protect electrical components mounted on the casing door from escaping liquids 1 Open any non return valves installed on site 2 Check the pre charge pressure of the ...

Page 78: ...lease note To prevent equipment dam age check the flow and return connections of the secondary circuit at the heat pump for tightness In case of leaks switch off the appliance immediately drain the water and check the seat ing of the seal rings Always replace dislodged seal rings 5 Check the system pressure and top up with water if required Minimum system pressure 0 8 bar Permiss operating pressur...

Page 79: ...pansion vessel and heating circuit pressure Observe engineering informa tion Vitocal technical guide Cleaning the DHW cylinder Danger Uncontrolled escape of DHW or heat transfer medium can cause scalding and building damage Only open DHW and heating water connections with a depres surised DHW cylinder Please note Negative pressure in the DHW cylinder can cause material dam age The air vent valve m...

Page 80: ...eads to corrosion damage on the DHW cylinder Before inserting the electrical cables measure the resistance between terminals A and B If the resistance is significantly less than infinity check whether the magnesium anode is touching the internal indirect coil Commissioning inspection maintenance Further details regarding the individual steps cont 5623 661 GB ...

Page 81: ... the fan with the external unit open can lead to severe inju ries Isolate the external unit from the power supply and safeguard against reconnection Be aware that the fan may run on 1 Type AWT AC 241 A04 First remove the top cover and then the front panel Type AWT AC 241 A07 A10 and A13 Remove the external unit air dis charge grille 2 Turn the fan by hand Cleaning the external unit heat exchanger ...

Page 82: ...heat exchanger for deformation and scratches if necessary repair with a suitable tool e g fin comb 4 Close the casing of the external unit Checking electrical connections of the external unit for firm seat ing Danger Contact with live components can result in severe injuries Capacitors remain live after the power supply has been switched OFF Wait at least 4 min until the capacitors have discharged...

Page 83: ...xternal unit voltage 2 Wait 2 min 3 Switch ON internal unit voltage 4 Start internal unit at the ON OFF switch Note If the internal unit is switched on before the external unit or the waiting time is shorter than 2 min the fault message 0A Fault external unit appears Service instructions for Vitotronic 200 heat pump control unit Commissioning the system Commissioning configuration parame ter setti...

Page 84: ...itch on the ON OFF switch on the heat pump control unit The prompt Start commission ing appears automatically on first commissioning Note The commissioning wizard can also be started manually To do this when you switch on the heat pump control unit progress bar visible hold down When the unit is first commissioned the display is in German Sprache Dansk Cesky Bulgarski Deutsch Wählen mit ê ê ç DE B...

Page 85: ...sioning Parameter group select Language set Date time set Temperature sensors Signal inputs Actuator test Commissioning terminated Control mode OK OK OK OK OK OK OK OK OK OK OK OK NO YES OK Function check Coding level 1 Subscriber check Time set Date set Commissioning inspection maintenance Further details regarding the individual steps cont 5623 661 GB Service ...

Page 86: ...ss OK å simultaneously for approx 4 s 2 Select Coding level 1 3 Select parameter group System definition 4 Select parameter System scheme 7000 5 Set system scheme 6 Alternatively if the service menu was already enabled Extended menu 1 å 2 Service 3 Select Coding level 1 4 Select parameter group System definition 5 Select parameter System scheme 6 Confirm parameter code 7000 7 Set system scheme 6 R...

Page 87: ...nded menu Time program DHW cir culation Set a time program Extension kit mixer for heating circuit M2 HC2 System definition Ó System scheme 7000 Note Set rotary selector S1 in the extension kit to 2 see ex tension kit installation in structions Remote control For heating cooling circuit Heating circuit 1 Ó Remote control 2003 or Heating circuit 2 Ó Remote control 3003 1 Note Set code on Vitotrol t...

Page 88: ...parameters for external functions see the following table External functions External functions Parameter Setting External demand If applicable Internal hy draulics Ó Flow temperature for ex ternal demand 730C Set flow temperature for external demand External starting of the com pressor mixer in control mode or OPEN System definition Ó Effect of external demand on heat pump heating cir cuits 7014 ...

Page 89: ... compressor 701A 0 to 31 External blocking of the com pressor 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 block ing on pumps compressor 701A 0 to 31 Solar Solar parameters Setting Solar Ó Type solar control unit 7A00 4 Solar Ó Flow rate solar circuit for calculating solar yield 7A07 Spec...

Page 90: ...g water heater 7900 1 poss Electr booster heater Ó Enable instant heating water heater for cen tral heating 7902 1 Electr booster heater Ó Output for instant heating water heater at power OFF 790A 1 for 3 kW 2 for 6 kW 3 for 9 kW poss DHW Ó Enable electric heaters for DHW heating 6015 1 Swimming pool water heating Parameters for swimming pool heating Setting System definition Ó External extension ...

Page 91: ...nsor 7D06 1 If applicable adjust values subject to design Ventilation Ó Extract air temperature with standard ven tilation 7D08 100 to 300 10 to 30 C Flow rate reduced ventilation 7D0A 95 up to 7D0B minus 10 m3 h Flow rate nominal ventilation 7D0B 7D0A minus 10 m3 h up to 7D0C minus 10 m3 h Flow rate intensive ventilation 7D0C 7D0B 10 m3 h up to 280 m3 h Commissioning inspection maintenance Furthe...

Page 92: ...um ers specify the temperature dif ferential to the set value selec ted Raise set DHW cylinder temperature PV 7E21 0 to 200 0 to 20 C Raise set heating water buffer cylinder temp PV 7E22 0 to 100 0 to 10 C Raise set room temperature PV 7E23 0 to 50 0 to 5 C Checking the system function e g actuators temperatures heat meter if applicable Please note If the heat pump is subjected to temperatures bel...

Page 93: ...e system installer must hand the oper ating instructions to the system user and instruct him her in the operation of the system Commissioning inspection maintenance Further details regarding the individual steps cont 5623 661 GB Service ...

Page 94: ...94 Overview of electrical components See from page 49 Opening programming unit 2 2x 1 3 Troubleshooting Repairs 5623 661 GB ...

Page 95: ...95 Removing cover from programming unit if necessary 5 4 4x Troubleshooting Repairs cont 5623 661 GB Service ...

Page 96: ...96 Overview of internal components Internal unit a C C a C B sG D A B C G F E H L K aJ lJ g A Troubleshooting Repairs cont 5623 661 GB ...

Page 97: ...ollowing chapter D Instantaneous heating water heater with high limit safety cut out E Secondary circuit drain fill valve F Internal unit service valve Schrader valve can be used in place of the external unit service valve for checking pressure and evacuating the refrigerant cir cuit see page 72 G Liquid gas temperature sensor IRT H Secondary circuit temperature sensor upstream of the instan taneo...

Page 98: ...ylin der Overview of internal components External unit Danger Contact with live components can result in severe injuries Capacitors remain live after the power supply has been switched OFF Wait at least 4 min until the capacitors have discharged before starting work on the exter nal unit Troubleshooting Repairs cont 5623 661 GB ...

Page 99: ... air intake temperature sensor OAT D Evaporator temperature sensor OMT E 4 way diverter valve F Electronic expansion valve EEV G Compressor head temperature sen sor CTT H Liquid separator K Evaporator refrigerant inlet temper ature sensor OCT L Compressor Troubleshooting Repairs cont 5623 661 GB Service ...

Page 100: ...rator air intake temperature sensor OAT D Evaporator temperature sensor OMT E 4 way diverter valve F Electronic expansion valve EEV G Compressor head temperature sen sor CTT H Liquid separator K Evaporator refrigerant inlet temper ature sensor OCT L Compressor Troubleshooting Repairs cont 5623 661 GB ...

Page 101: ...ake temperature sensor OAT D Evaporator temperature sensor OMT E 4 way diverter valve F Electronic expansion valve EEV G Compressor head temperature sen sor CTT H Liquid separator K Evaporator refrigerant inlet temper ature sensor OCT L Compressor M High pressure switch pHi Troubleshooting Repairs cont 5623 661 GB Service ...

Page 102: ...eturn temperature sensor solar circuit F23 Room temperature sensors NTC 10 kΩ Internal unit see page 96 Controller and sensor PCB see page 49 Flow temperature sensor secon dary circuit F8 Return temperature sensor sec ondary circuit F9 Pt500A PTC Flow temperature sensor secon dary circuit upstream of instanta neous heating water heater LWT Liquid gas temperature sensor IRT NTC 10 kΩ AVI PCB see se...

Page 103: ...External unit see page 98 Refrigerant circuit control observe label on the exter nal unit Temperature sensors in the internal unit with marking Viessmann NTC 10 KΩ blue marking Outside temperature sensor 100 10 20 10 0 10 20 30 Temperature in C 6 8 20 40 60 80 200 Resistance in kΩ Further sensors 10 1 10 30 50 70 90 110 Temperature in C 0 4 0 6 0 8 2 4 6 8 20 Resistance in kΩ Troubleshooting Repai...

Page 104: ...460 20 540 100 Resistance in Temperature in C 60 140 180 620 700 780 860 20 Viessmann NTC 20 kΩ orange marking 80 120 160 200 Temperature in C 40 0 1 1 10 Resistance in kΩ 0 40 20 20 60 100 140 180 Troubleshooting Repairs cont 5623 661 GB ...

Page 105: ... in kΩ 30 20 10 0 10 20 30 40 50 60 70 80 90 100 Temperature in C Checking fuses For fuse locations see from page 49 Fuse F1 is located on the mains ter minal of the heat pump control unit Fuse F3 is located on the main PCB Fuse F101 is located on the AVI PCB Fuses F1 and F3 6 3 AH slow 250 V Max power loss 2 5 W Fuse F101 1 0 AL slow Max power loss 2 5 W Troubleshooting Repairs cont 5623 661 GB S...

Page 106: ...ch the power circuit to zero volt Contact with live compo nents can lead to serious injury from electric current Before working on the equip ment always ensure that the power circuit is also at zero volt Troubleshooting Repairs cont 5623 661 GB ...

Page 107: ...ired Serial no see type plate A Assembly from this parts list Position number of the individual part within the assembly from this parts list Standard parts are available from your local dealer Parts lists internal unit Parts lists internal unit 5623 661 GB Service ...

Page 108: ...108 C B F E A A Type plate B Casing assembly internal unit C Electrical equipment assembly internal unit Parts lists internal unit Overview of assemblies internal unit 5623 661 GB ...

Page 109: ... pump installation and serv ice instructions Internal unit casing 0001 Front panel top 0002 Front panel bottom 0003 Side panel left 0004 Side panel right 0005 Top panel front 0006 Top panel back 0007 Viessmann logo 0008 Support heat pump control unit 0009 Screws set 0010 Fixing parts set Parts lists internal unit Overview of assemblies internal unit cont 5623 661 GB Service ...

Page 110: ...110 0003 0006 0005 0008 0007 0001 0009 0010 0002 0004 Parts lists internal unit Internal unit casing cont 5623 661 GB ...

Page 111: ...nel programming unit 0034 Retaining spring 0035 Outside temperature sensor 0037 Separator 0039 Service instructions Vitotronic 200 type WO1C 0040 Operating instructions Vitotronic 200 type WO1C Parts not shown 0003 PCB with connection adaptor SA136 A10 0004 PCB with connection adaptor ON OFF switch SA137 A10 0012 Connecting cable instantaneous heating water heater 0014 Connecting cable secondary p...

Page 112: ...2 0006 0018 0020 0019 0001 0032 0007 0005 0010 0002 0009 0037 0011 0013 0034 0008 0023 0024 0035 0025 0033 0030 0017 0039 0040 Parts lists internal unit Internal unit electrical equipment cont 5623 661 GB ...

Page 113: ...0022 Upper hinge section for casing door 0023 Secondary pump circulation pump VI Tec PWM 0024 Fastening UNF for hot gas line 0025 Fastening UNF for liquid line 0026 Pressure sensor ICT 0027 Valve body 0028 Schrader valve 0029 Spring clip 0030 Air vent valve G 0031 Clip for threaded pipe D 21 23 M8 EPDM insert 0032 Clip for threaded pipe D 31 35 M8 EPDM insert 0033 Union nut G with sealing cap 0034...

Page 114: ...0 0040 0029 0036 0043 0039 0044 0016 0044 0039 0011 0044 0039 0044 0010 0044 0039 0040 0040 0017 0018 0044 0039 0039 0044 0044 0039 0026 0027 0028 0030 0033 0034 0033 0028 0027 0014 0030 0038 0026 0028 0027 0029 0039 0041 0044 0029 0036 0044 0038 0003 0035 0034 0048 0047 0037 0037 0001 0007 0032 0008 0022 0021 0005 0031 0004 0020 Parts lists internal unit Internal unit hydraulics cont 5623 661 GB ...

Page 115: ...ip ring 732 x 1 5 mm 0018 Clip for threaded pipe D 21 23 M8 EPDM insert 0019 Locking cap G with retaining loop 0020 Magnesium chain anode 0021 Heating lance 0022 Non return valve 30 mbar con nection G1 0023 Tee with locking ring fitting 0024 Sensor well G with clip 0025 Cylinder primary pump circula tion pump VIRZS 15 6 PWM 0026 O rings 7 20 x 3 5 mm set 0027 Gasket 23 x 30 x 2 mm 0028 Locking sta...

Page 116: ...27 0019 0010 0035 0035 0015 0009 0027 0035 0035 0022 0027 0032 0001 0003 0030 0029 0028 0026 0035 0033 0021 0012 0013 0014 0014 0013 0011 0008 0035 0017 0017 0035 0035 0007 0035 0015 0035 0016 0002 0020 0034 0027 0027 Parts lists internal unit Internal unit cylinder cont 5623 661 GB ...

Page 117: ...014 Connection plate 0015 Valve cover 0016 4 way diverter valve complete 0017 4 way diverter valve 0018 Coil EEV 0019 Side panel r h 0020 Grille 0021 Heat exchanger evaporator 0022 Joining plate 0023 Heat exchanger mounting plate 0024 Top panel 0025 M5 nut 0026 Transport handle 0027 Side panel left 0028 Terminal strip 4 pole 0029 Electronic expansion valve 0030 Temperature sensor NTC 10 kΩ OCT 003...

Page 118: ...0008 0025 0005 0004 0019 0015 0006 0023 0027 0009 0014 0028 0026 0024 0021 0010 0022 0016 0002 0001 0003 0017 0032 0013 0018 0029 0007 0012 0011 Parts lists external unit External unit type AWT AC 241 A04 cont 5623 661 GB ...

Page 119: ...n valve up to serial no 7424690 3211645361 0025 Coil EEV up to serial no 7424690 3211645361 0026 Heat exchanger evaporator 0027 Grille 0028 Retainer temperature sensor 0029 Transformer 0030 Partition 0031 ODU control unit 0032 Motor support 0033 Top panel 0034 Transport handle 0035 Cover 0036 Temperature sensor NTC 10 kΩ OAT OMT 0037 Temperature sensor NTC 10 kΩ CTT 0038 Temperature sensor NTC 10 ...

Page 120: ...0032 0028 0033 0035 0034 0004 0007 0021 0022 0023 0012 0038 0020 0013 0019 0018 0010 0009 0002 0001 0008 0003 0037 0011 0005 0025 0024 0014 0015 0017 0016 0043 0042 Parts lists external unit External unit type AWT AC 241 A07 cont 5623 661 GB ...

Page 121: ...121 B C D A A Type plate B Casing assembly external unit Parts lists external unit Overview of external unit assemblies type AWT AC 241 A10 A13 5623 661 GB Service ...

Page 122: ...7 Bottom panel 0008 Heat exchanger evaporator bot tom 0009 Heat exchanger evaporator top 0010 Axial fan 0011 DC motor 0012 Protective grille left 0013 Transport handle left 0014 Motor support 0015 Air inlet ring 0016 Transport handle right 0017 Inverter 0018 Temperature sensor NTC 10 kΩ OAT 0019 Temperature sensor NTC 10 kΩ OMT 0020 Temperature sensor NTC 10 kΩ OCT 0021 M8 nut Parts lists external...

Page 123: ...0014 0001 0018 0011 0009 0008 0006 0006 0004 0016 0005 0007 0015 0017 0021 0010 0015 0021 0010 0002 0016 0003 0020 0019 Parts lists external unit External unit casing type AWT AC 241 A10 A13 cont 5623 661 GB Service ...

Page 124: ...relief Parts not shown 0016 Cable harness compressor 0017 Cable harness complete com pressor 0020 Communication cable drivers 0021 Communication cable IDU 0022 Power cable controller PCB ODU 0023 Communication cable starter controller 0024 Power cable driver filter 0025 Power cable line filter 0026 Power cable controller input 0027 Cable capacitor PCB Parts lists external unit External unit electr...

Page 125: ...125 0013 0010 0009 0008 0007 0001 0012 0006 0011 0005 0003 0002 0004 Parts lists external unit External unit electrical equipment type AWT AC cont 5623 661 GB Service ...

Page 126: ... hot gas line 0007 Oil separator 0008 Electronic expansion valve 0009 Compressor thermal insulation 0010 Temperature sensor NTC 50 kΩ CTT 0011 Shut off valve liquid line 0012 Compressor power supply cover Parts not shown 0013 Connection set for condensate line if installed Parts lists external unit External unit hydraulics type AWT AC 241 A10 A13 5623 661 GB ...

Page 127: ...127 0012 0009 0001 0011 0008 0002 0004 0010 0006 0007 0005 0003 Parts lists external unit External unit hydraulics type AWT AC 241 A10 cont 5623 661 GB Service ...

Page 128: ...ake temperature 15 C K 4 to 8 Secondary circuit flow temperature 35 C at air intake temperature 15 C K 4 to 13 Testing the mixer heat pump and cylinder heating Checked under the following conditions Room temperature C Outside temperature C Temperature Cylinder temp top con stant Yes 1 K Secondary circuit flow temperature C Rising from to Temperature differential ΔT Flow temp secondary Return temp ...

Page 129: ...s for external change over 7012 2 Duration of external changeover 7013 8 h Effect of external demand on heat pump heating circuits 7014 4 Effect of ext blocking on heat pump heating circuits 7015 4 Vitocom 100 7017 0 Effect of external blocking on pumps compressor 701 A 0 Common flow temperature sensor system 701 B 0 Compressor Parameter Code Delivered condi tion Commis sioning Enable compressor 5...

Page 130: ...r DHW heat ing 6014 0 Enable electric heaters for DHW heat ing 6015 1 Priority DHW heating with combi cyl inder 6016 0 Start attempts for DHW after high pressure shutdown 6017 1 Cylinder primary pump enable 601F 1 Operating mode cylinder primary pump 6020 3 Solar Parameter Code Delivered condi tion Commis sioning Type solar control unit 7A00 0 Max collector temperature 7A01 1300 130 C Start hyster...

Page 131: ...uilding 7300 0 Time program for screed drying 7303 0 Flow temperature for external de mand 730C 500 50 C Enable 3 way diverter valve heating DHW 730D Do not adjust Operating mode secondary pump 7340 Do not adjust Heating water buffer cylinder Parameter Code Delivered condi tion Commis sioning Enable buffer cylinder low loss head er 7200 0 Temp in operating status fixed value for buffer cyl 7202 50...

Page 132: ...cir cuit 200E 400 40 C Room temperature in party mode 2022 200 20 C Heating circuit 2 Parameter Code Delivered condi tion Commis sioning Standard room temperature 3000 200 20 C Reduced room temperature 3001 160 16 C Remote control 3003 0 Heating curve level 3006 0 0 K Heating curve slope 3007 6 0 6 Influence room temperature hook up 300A 10 Room temperature hook up 300B 0 Max flow temperature heat...

Page 133: ...le preheater bank electric 7D01 0 Enable reheater bank hydraulic 7D02 0 Enable humidity sensor 7D05 0 Enable CO2 sensor 7D06 0 Extract air temperature with standard ventilation 7D08 200 20 C Flow rate reduced ventilation 7D0A 120 m3 h Flow rate nominal ventilation 7D0B 170 m3 h Flow rate intensive ventilation 7D0C 215 m3 h Min supply air temperature for by pass 7D0F 160 16 C CO2 value for fan star...

Page 134: ...heating water buffer cyl 7E12 0 Enable own energy consumption for heating 7E13 0 Raise set DHW cylinder temperature PV 7E21 0 0 K Raise set heating water buffer cylin der temp PV 7E22 0 0 K Raise set room temperature PV 7E23 0 0 K Time Parameter Code Delivered condi tion Commis sioning Automatic changeover summertime wintertime 7C00 1 Start summertime month 7C01 3 Start summertime week 7C02 5 Star...

Page 135: ...anager 7779 0 LON system number 7798 1 Interval for data transfer via LON 779C 20 min Source outside temperature 77FC 0 Send outside temperature 77FD 0 Source time 77FE 0 Send time 77FF 0 Control Parameter Code Delivered condi tion Commis sioning Lock out controls 8800 0 Commissioning service reports Control parameter report cont 5623 661 GB Service ...

Page 136: ...g to EN 14511 A7 W35 C spread 5 K Rated heating output kW 4 5 8 39 10 9 14 6 Compressor frequency Hz 60 65 55 75 Fan speed rpm 870 650 650 650 Air flow rate m3 h 2090 3600 4210 4210 Power consumption kW 0 97 1 96 2 36 3 40 Coefficient of perform ance ε COP in heating mode 4 64 4 28 4 62 4 29 Cooling performance data At 100 according to EN 14511 A35 W7 C spread 5 K Rated cooling capacity kW 3 2 6 2...

Page 137: ...C 35 35 35 35 Heating water at 10 K spread Capacity l 2 8 2 8 3 8 3 8 Minimum flow rate al ways maintain l h 600 820 1200 1380 Max external pressure drop RFH at min flow rate mbar 590 540 440 380 Max flow temperature C 55 55 55 55 Electrical values External unit Rated voltage com pressor 1 N PE 230 V 50 Hz Max rated current compressor A 13 5 15 7 19 6 26 5 Starting current compressor A 10 5 15 10 ...

Page 138: ... 70 130 130 External unit max kW 3 0 3 6 5 8 5 8 Secondary pump PWM W 3 50 3 70 Control unit PCB ex ternal unit max W 150 150 150 150 Control unit PCB in ternal unit max W 5 5 5 5 Max rating control unit PCB W 1000 1000 1000 1000 Cooling circuit Refrigerant R410A R410A R410A R410A Refrigerant charge kg 1 2 2 15 2 95 2 95 Top up amount for line lengths 12 m to 30 m g m 20 60 60 60 Compressor hermet...

Page 139: ...ith orientation to the south flat plate tube collec tors m2 5 3 5 3 5 3 5 3 Max permissible DHW temperature C 95 95 95 95 Dimensions External unit Total length mm 869 1040 900 900 Total width mm 290 340 340 340 Total height mm 610 865 1255 1255 Internal unit Total length mm 680 680 680 680 Total width mm 600 600 600 600 Total height mm 2075 2075 2075 2075 Total weight External unit kg 43 66 110 11...

Page 140: ...ti connect system Condensate pipe ex ternal unit mm 16 x 1 16 x 1 16 x 1 16 x 1 Liquid line Pipe 7 mm 6 x 1 10 x 1 10 x 1 10 x 1 Internal unit UNF External unit UNF Hot gas line Pipe 7 mm 12 x 1 16 x 1 16 x 1 16 x 1 Internal unit UNF External unit UNF Max line length liquid line hot gas line m 20 30 30 30 Sound power level of the ex ternal unit Test with reference to DIN EN 12102 DIN EN ISO 9614 2...

Page 141: ... filled Electrical installation completed Hydraulic lines fully thermally insulated Installation completed in full up to refrigerant circuit All windows and external doors sealed Components for cooling mode fully installed optional Components for solar thermal system fully installed optional Components for ventilation fully installed optional Components for PV system fully installed optional Prefe...

Page 142: ... 000 3 2 BGR 500 chapter 2 35 In accordance with the following Directives this product is designated with _ 2002 95 EC 97 23 EC 2004 108 EC 2006 95 EC Details according to the Pressure Equipment Directive 97 23 EC Category I mod ule A The product characteristics determined as system values for the product Vitocal 242 S see technical guide can be utilised to assess the energy consumption of heating...

Page 143: ...unit type AWT AC 241 A10 and A13 122 Checking Fuses 105 Sensors 102 Checking solder joints 76 Checking swaged connections 76 Checking the sensors 102 Checking the system pressure 78 Checking threaded fittings 76 Check valve 44 Chilled ceiling 45 Cleaning Cylinder 79 Closing the heat pump 68 Coding level 1 84 Cold water connection 8 140 Collector area 79 Collector temperature sensor 13 Curve 103 Co...

Page 144: ...TC temperature sensors 105 Temperature sensor type Pt 500A104 Curves of the sensors 102 Cylinder Drain fill valve 98 Specification 139 Cylinder cleaning 79 Cylinder assembly Internal unit 115 Cylinder drain fill valve 97 Cylinder module fitting 31 Cylinder module removal 25 D Daily log 71 Data 136 Declaration of Conformity 142 Defrosting 18 Designations for system examples 11 DHW circulation conne...

Page 145: ...ths 9 Checking electrical connections 82 Cleaning 81 Closing 68 Dimensions 139 Electrical connections 59 Electrical values 137 Fill valve 73 75 76 Installation 18 Internal components 98 Power cable 9 Power supply 63 Refrigerant lines 35 Service valve 73 75 Siting 22 Wall mounting 23 Weight 139 External unit assembly Type AWT AC 241 A04 117 Type AWT AC 241 A07 119 Type AWT AC 241 A10 and A13 121 Ex...

Page 146: ... M2 14 Heating circuit without mixer A1 14 Heating output compressor 86 Heating water buffer cylinder 13 Heating water flow 8 41 42 140 Heating water return 8 41 42 140 Heat pump starting 83 Heat pump control unit 13 Power cable 9 Heat transfer medium 79 Height differential Internal unit external unit 33 High limit safety cut out For solar circuit 13 52 High limit safety cut out connecting 52 High...

Page 147: ... lines 33 140 Liquid line 8 13 33 35 37 73 140 Torque 36 40 Liquid separator 99 100 101 Luster terminals 50 53 LV leads 46 48 M Magnesium anode 80 81 Magnesium anode replacing 81 Main PCB 50 Mains isolator 67 Maintenance 71 Maximum temperature limiter 52 Measuring magnesium anode resist ance 80 81 Message connections 53 Minimum clearances External unit 21 Internal unit 24 Minimum flow rate 43 Mini...

Page 148: ...ng 36 Pipe separator 44 Pipe sleeve 8 Power cable 9 62 External unit 63 Heat pump control unit 48 Instantaneous heating water heater64 Switching module for instantaneous heating water heater 48 Power OFF 63 64 Floating contact connection 54 Power supply with load disconnec tion 66 Without on site load disconnection 65 Power OFF contact 9 Power OFF signal 65 Power supply Compressor 59 External unit...

Page 149: ...Required parameter settings For system scheme 17 Reset button For instantaneous heating water heater 92 Return temperature sensor secondary circuit 102 Ripple control receiver 65 66 Room height 23 Room temperature sensor 102 Room volume 24 Rubber mounts 23 S Safety assembly 43 Safety assembly installation 43 Safety chain 55 Safety connections 53 Safety goggles 72 75 76 Safety instructions Refriger...

Page 150: ...acts Contact humidistat 45 Switching module Instantaneous heating water heater50 Switching on appliance 83 System examples Designations 11 System pressure checking 79 System schemes Overview 9 Parameter settings 17 System user instructing 93 T Temperature limiter 14 52 Temperature sensor 102 Compressor head CTT 99 100 101 Curve type Pt 500A 104 Evaporator OMT 99 100 101 Evaporator air intake OAT 9...

Page 151: ...t 77 Solar circuit 79 Vibration insulation 20 Vitocom 88 W Wall mounting Bracket set 23 External unit 23 Wall mounting bracket set 19 Warranty 84 Water quality 77 Weatherproofing 19 Weight 20 External unit 139 Internal unit 139 Well circuit 54 Wind direction 19 Wind loads 19 Working on the refrigerant circuit 76 Keyword index Keyword index cont 5623 661 GB ...

Page 152: ...41 7514942 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 GmbH Co KG D 35107 Allendorf Telephone 49 6452 70 0 Fax 49 6452 70 2780 www viessmann com 5623 661 GB Subject to technical modifications ...

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Viessmann Vitocal 242-S, Installation And Service Instructions Manual

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