Installation and service instructions VIESMANN for contractors Vitocal 242-G Compact heat pump with electric drive, 400 V~ and 230 V~ For applicability, see the last page VITOCAL 242-G 5441 603 GB 8/2009 Please keep safe.
Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and material losses. Danger This symbol warns against the risk of injury. ! Please note This symbol warns against the risk of material losses and environmental pollution. Note Details identified by the word "Note" contain additional information. Working on the system ■ Isolate the system from the power supply and check that it is no longer 'live', e.g.
Safety instructions Safety instructions (cont.) Ancillary components, spare and wearing parts Please note Spare and wearing parts that have not been tested together with the heating system can compromise its function. Installing non-authorised components and non-approved modifications or conversions can compromise safety and may invalidate our warranty. For replacements, use only original spare parts supplied or approved by Viessmann.
Index Index Installation instructions Preparing for installation Installation............................................................................................................ System example................................................................................................... 8 8 Installation sequence Opening and separating the heat pump............................................................... Installing the heat pump...........................................................
Index Index 7015 External blocking mixer "CLOSED"............................................................. 85 7017 Vitocom 100................................................................................................ 86 701B Common system temperature sensor......................................................... 86 5441 603 GB Parameter group compressor Parameter group compressor............................................................................... 88 5000 Enable compressor...........
Index Index 7303 Screed program .......................................................................................... 99 730D Operation with three-way diverter valve..................................................... 101 730C Set flow temperature, external demand...................................................... 102 7320 Primary pump operating mode.................................................................... 102 7340 Secondary pump operating mode...........................................
Index Index (cont.) 77FF Time via LON.............................................................................................. 116 Parameter group operation Parameter group operation.................................................................................. 118 8800 Lock out controls......................................................................................... 118 Connection and wiring diagrams Overview of the PCBs and connection options...............................................
Preparing for installation Installation ! ! Please note The installation room must be dry and free from the risk of frost. Ensure ambient temperatures of 0 to 35 ºC. Minimum room volume Maintain the minimum room volume required by DIN EN 378; see Viessmann "Technical guides for heat pumps". Minimum clearances Please note Observe the permissible floor load.
Preparing for installation System example (cont.) 2/F21 A1 2/145 2/F14 2/211.1 P 2/X4.1/2 M Installation 2/212.4 M 2/211.5 2/212.3 WW 2/F0 2/X3.8 2/X3.9 F0 F14 F21 145 P 2/211.3 X3.8/9 X4.1/2 211.2 211.3 211.5 212.3 212.4 P 2/212.4 P Explanation of the designation of electrical contacts 5441 603 GB Example: "2/211.2" at pos.
Preparing for installation System example (cont.) Pos.
Preparing for installation System example (cont.) "2" "1" "1" "4" Set switching times (see operating instructions) "1" "1" 5441 603 GB "Heating circuit A1" ■ "Remote control 2003" "Electric heater" ■ "Inst.htg.
Installation sequence Opening and separating the heat pump During handling, the cylinder module can be removed (see page 13 onwards). In addition, the heat pump module can be removed (see page 18). Please note Avoid damaging the appliance during handling. Never put weight on the top, front or side panels of the appliance. Please note Installing a compressor at a steep angle inside the heat pump can result in equipment damage. Never tilt the heat pump more than 45° during handling and installation.
Installation sequence Opening and separating the heat pump (cont.) Removing the cylinder module 5. Installation 4. 1. 2. 2x 5441 603 GB 3.
Installation sequence Opening and separating the heat pump (cont.) 8. 9. 11. sXF 400 V 2x 230 V 2x 10. 4x 6. X3 5441 603 GB 7.
Installation sequence Opening and separating the heat pump (cont.) 16. 17. 2x 14. Installation 2x 18. 12. 13. 5441 603 GB 15.
Installation sequence Opening and separating the heat pump (cont.) 6x 22. 4x 21. 2x 19. 4x 5441 603 GB 20.
Installation sequence Opening and separating the heat pump (cont.) Installation 23. 26. 25. 2x 4x 5441 603 GB 24.
Installation sequence Opening and separating the heat pump (cont.) Removing the heat pump module 6. sH aYH 1. 3. 4. kK 2. 1. 5441 603 GB 5.
Installation sequence Opening and separating the heat pump (cont.) aJ 9. 4x 10. 4x ? Installation 11. sH kK aYH 8. 2x 7. 5441 603 GB 12.
Installation sequence Opening and separating the heat pump (cont.) Assembly and sealing faces to note 2. Fit the cylinder module in reverse order to that described on page 13. ! A 1. Install the heat pump module in reverse order to that described on page 18. With pipe outlets, ensure pipe glands A are seated correctly. Seal pipe glands A with adhesive tape. ! Please note Make tight hydraulic connections between the heat pump and cylinder modules.
Installation sequence Opening and separating the heat pump (cont.) Installation C BB 5441 603 GB Installing the heat pump Install the heat pump according to the details on page 8.
Installation sequence Installing the heat pump (cont.) Removing the transport brackets ! Please note If transport brackets are not 4. removed, they cause vibrations and excessive development of noise. 2x 2. 3. 2x 5441 603 GB 1.
Installation sequence Hydraulic connections A BCD E M L A B C D E F G H K L M Entry for low voltage cables < 42 V DHW DHW circulation Entry for 230 V cables Cold water Primary circuit return (heat pump brine outlet) Primary circuit flow (heat pump brine inlet) Heating water flow Heating water return Solar circuit return Solar circuit flow F G H 5441 603 GB K 23 Installation Overview of connections
Installation sequence Hydraulic connections (cont.) Connecting the primary/secondary circuit 2. 4x A B 1. 4x A Straight pipe sections supplied B Pipe bends from connection set primary/secondary circuit (accessories, see separate installation instructions) ! 24 Please note The components used must be resistant to the heat transfer medium. Never use zinc-plated/galvanised pipes. 1. Equip the primary circuit with an expansion vessel and safety valve (in accordance with DIN 4757).
Installation sequence Hydraulic connections (cont.) Connecting the secondary circuit E F Installation Note ■ Expansion vessel must be approved to DIN 4807. Diaphragms of expansion vessel and safety valve must be suitable for the heat transfer medium. ■ Blow-off and drain lines must converge in one container that can hold the maximum possible expansion volume of the heat transfer medium. 2. Ensure adequate thermal and sound insulation of all pipes routed through walls. 3.
Installation sequence Hydraulic connections (cont.) 2. Install the safety assembly provided: Either to the on-site line in the heating water return or To the connection set primary circuit/ secondary circuit (accessories) Connection set installation instructions Note ■ In underfloor heating circuits, integrate a temperature limiter on site for limiting the maximum temperature of underfloor heating systems. ■ Safeguard minimum flow rate, e.g. with overflow valve (see Specification on page 141).
Installation sequence Electrical connections (cont.) Required cable lengths: 400/230 V~ 1700 mm plus wall clearance < 42 V 1500 mm plus wall clearance Note The 400/230 V~ compressor power supply is protected against contact with a contact shield. This contact shield can be sealed for power-OFF (if required) (see page 31).
Installation sequence Power supply Danger Incorrectly executed electrical installations can lead to injury from electrical current and result in equipment damage. Make the power supply connection and implement all earthing measures (e.g. RCD circuit) in accordance with the following regulations: ■ IEC 60364-4-41 ■ VDE requirements ■ Requirements specified by your local power supply utility ■ Protect the power cable to the control unit with no more than 16 A.
Installation sequence Power supply (cont.) Information regarding the compressor power supply ■ Please note An incorrect phase sequence can cause damage to the unit. Make the compressor power supply only in the phase sequence specified (see terminal) with a clockwise rotating field. ! 5441 603 GB ■ If full wave soft starter is installed (see type plate), the compressor power fuses must have Z characteristics.
Installation sequence Power supply (cont.) Power cables The power supply is separated into three areas with three power cables: Vitocal 242-G, 230 V~ Vitocal 242-G, 400 V~ 230 V~ 1/N/PE A 230 V~ 1/N/PE B 230 V~ 1/N/PE C 230 V~ 1/N/PE A 400 V~ 3/PE B 400 V~ 3/N/PE C A Control unit power supply B Compressor power supply C Power supply to instantaneous heating water heater (accessory; see separate installation instructions) Control unit power supply (230 V~) A X3.18 X2.1 X1.
Installation sequence Power supply (cont.) Vitocal 242-G, 400 V~ 3/PE 400 V, 50 Hz L1 L2 L3 L1 L2 L3 N ? ? A A Compressor mains terminals behind contact shield (see page 119). Vitocal 242-G, 230 V~ L1 1/N/PE 230V/ 50 Hz N L1 L1 N N ? ? ? ■ Fuse protection in accordance with the compressor rating (see specification on page 141/type plate). For appliances with full wave soft starter, the upstream fuses must have Z characteristics. ■ Low tariff and power-OFF can be used.
Installation sequence Power supply (cont.) Vitocal 242-G, 400 V~ X3.7 A X3.6 B 3 5 ≈ 3 kWh E 3/N 4 4 3 kWh D C 3/N F H 4 G 4 Diagram excluding fuses and RCD.
Installation sequence Power supply (cont.) Vitocal 242-G, 230 V~ X3.7 A X3.6 B 7 3 Installation 3 C ≈ kWh D 1/N kWh E 1/N H F G Diagram excluding fuses and RCD.
Installation sequence Power supply (cont.) Power-OFF with on-site load disconnection The power-OFF signal is connected to the on-site contactor of the low tariff power supply and in the control unit. The compressor and instantaneous heating water heater (accessory) are "forced" off when power-OFF is enabled. Note Observe the technical connection conditions of the relevant power supply utility. Vitocal 242-G, 400 V~ X3.7 X3.
Installation sequence Power supply (cont.) G Ripple control receiver (contact open: power-OFF enabled) H Low tariff meter K TNC system feed Vitocal 242-G, 230 V~ X3.7 X3.6 C B D 3 Installation A 3 7 E ≈ kWh kWh 1/N F 1/N G H K Diagram excluding fuses and RCD.
Installation sequence Power supply (cont.) Phase monitor (accessory, 400 V~) The phase monitor is used to monitor the mains power supply to the compressor. The following power supply deviations are permitted in the delivered condition: Over/undervoltage Phase asymmetry Switching delay 15 % 15 % 4s The phase monitor automatically re-enables the power supply if the values return to within the specified tolerance range. Remove the cause if the relay has responded. The relay does not need to be reset.
Installation sequence Connecting to terminals X3.8/X3.9 After connecting the power supply, a connection must be made at terminals X3.8 and X3.9: ■ Primary circuit pressure switch and/or frost stat or ■ Jumper from the pack Installation Closing the heat pump 5441 603 GB See page 20.
Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance For further information regarding the individual steps, see the page indicated Commissioning steps Inspection steps Maintenance steps • • • • • • 1. Writing reports................................................................ 39 • • 2. Checking the refrigeration circuit for leaks................. 39 3. Filling and venting on the primary side........................ 39 4.
Commissioning, inspection, maintenance Further details regarding the individual steps Writing reports Enter measurements taken during commissioning (described in the following) into the reports from page 137 onwards. Checking the refrigeration circuit for leaks If there are any leaks, have the compact heat pump checked by a refrigeration engineer. Filling and venting on the primary side ! Please note To prevent equipment damage, fill the primary circuit before connecting the power supply. 3.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 2. Check the pre-charge pressure of the expansion vessel (see page 41). 3. Fill (flush) and vent secondary circuit: ■ Slightly open quick-action air vent valve (see safety assembly on page 25) (remains open). ■ To vent, move hand lever of threeway diverter valve for heating/ DHW into its centre position (see adjacent diagram). 4.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Vent the solar circuit. Minimum system pressure: 1.7 bar Permissible operating pressure: 6 bar Checking the expansion vessel and the heating circuit pressure Observe design information. Vitocal technical guide Cleaning the DHW cylinder Danger DHW or heat transfer medium escaping uncontrollably can lead to scalding and building damage.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 8x 1. AB ! 42 Please note A short circuit between magnesium anode and internal indirect coil increases the protective effect of the magnesium anode and leads to corrosion damage on the DHW cylinder. Before inserting the electrical cables, measure the resistance between terminals A and B.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Replacing the magnesium anode For removing the magnesium anode, see page 41. ! Please note A short circuit between magnesium anode and internal indirect coil increases the protective effect of the magnesium anode and leads to corrosion damage on the DHW cylinder. Before inserting the electrical cables, measure the resistance between terminals A and B (see previous diagram).
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Sprache Deutsch Cesky Dansk English Wählen mit Ø DE ç CZ DK GB 5441 603 GB ■ Messages are displayed by manually controlling some components during commissioning. These do not indicate appliance faults.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Instructing the system user 5441 603 GB The system installer must hand the operating instructions to the system user and instruct him/her in the operation of the system.
Troubleshooting Messages Scanning messages DC B Flow temperature Heating/cooling DHW Solar energy Information A 40℃ i Select with A ON/OFF switch B Programming unit C ON indicator (green) D Fault indicator « (red) If messages are pending, the message symbol flashes ( , , ). For faults ( ), fault indictator D also flashes. Show the message text and message code by pressing OK (see "Message overview").
Troubleshooting Messages (cont.) Calling up messages from the message history ■ Messages cannot be acknowledged in the message history. ■ The messages are listed in order of occurrence with the most recent first. ■ Up to 30 entries are stored. Note The service menu remains active until it is deactivated with "Terminate service?", or if no operation takes place for 30 minutes. Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Message history" 3.
Troubleshooting Messages (cont.) Message System characteristics Cause 10 Outside temp sensor Operation with outside Short circuit, outside temperature -40 °C temperature sensor 5441 603 GB 20 Flow sensor secondary Operation with temperature value of return temperature sensor in secondary circuit, plus 5 K. If both temperature sensors (secondary flow and return) are faulty, the heat pump stops (message A9) 21 Return sensor sec.
Troubleshooting Messages (cont.) 50 Cause Measures Break, secondary circuit return temperature sensor Check resistance (Pt 500) at plug-in connection F9 and terminals X5.10/ X5.11; replace sensor if required. Short circuit, primary cir- Check resistance (Pt 500) cuit temperature sensor, at plug-in connection F2 brine inlet and terminals X5.2/X5.3; replace sensor if required.
Troubleshooting Messages (cont.) Message System characteristics 39 Return sensor primary Operation with temperature value of flow temperature sensor in primary circuit, minus 2 K. If both temperature sensors (primary flow and return) are faulty, the heat pump stops (message A9) 40 Flow sensor HC2 Mixer heating circuit M2 is closed Cause Measures Lead break, primary return temperature sensor (brine outlet) Check resistance (Pt 500) at plug-in connection F3 and terminals X5.4/X5.
Troubleshooting Messages (cont.) Message System characteristics Cause 4C Flow sensor cooling Break, flow temperature sensor, cooling circuit Measures Check resistance (Ni 500) at plug-in connection F14; replace sensor if required. 5441 603 GB 50 DHW sensor top DHW heating is blocked. Short circuit, top cylinder Check resistance (Pt 500) temperature sensor at plug-in connection F6 and terminals X6.2/X6.1; replace sensor if required.
Troubleshooting Messages (cont.) Cause Measures Break, buffer cylinder temperature sensor Check resistance (Pt 500) at plug-in connection F4 and terminals X5.6/X5.7; replace sensor if required. Short circuit, room temperature sensor heating circuit A1 Check remote control sensor and replace if required (see Vitotrol service instructions). Short circuit, room temperature sensor heating circuit M2 Check remote control sensor and replace if required (see Vitotrol service instructions).
Troubleshooting Messages (cont.) Message System characteristics 79 Room sensor HC2 ■ No frost protection mode via room temperature sensor ■ No room temperature hook-up ■ No room temperature control 7B Room sensor SKK Cause Measures Break, room temperature Check remote control sensor heating cirsensor and replace if cuit M2 required (see Vitotrol service instructions). Break, room temperature Check resistance (type Ni sensor, cooling circuit 500) at plug-in connection F16; replace sensor if required.
Troubleshooting Messages (cont.) Message System characteristics Cause 9A Collector sensor Collector temperature sensor lead broken Measures Check resistance (Pt 500) at plug-in connection F21 and terminals X6.10/ X6.11; replace sensor if required. If the Vitosolic is connected, check the Vitosolic sensor (see Vitosolic service instructions). 9B Return sensor solar Return temperature sen- Check resistance (Pt 500) sor lead broken, at plug-in connection F18 and terminals X6.6/X6.
Troubleshooting Messages (cont.) Measures Scan further messages ("Message history" see page 47); check flow rates, motor currents/ motor protection, full wave soft starter and safety high pressure switch. Note After removing fault, switch appliance OFF and ON again once. Danger Contact with 'live' components can lead to severe injury from electric current. Isolate the power supply prior to starting work on the appliance.
Troubleshooting Messages (cont.) Message System characteristics Cause Measures ■ Check power supply, power cable and plug to the instantaneous heating water heater ■ Test instantaneous heating water heater control signal at connections 211.3; check high limit safety cut-out and reset if required; check instantaneous heating water heater.
Troubleshooting Messages (cont.
Troubleshooting Messages (cont.) Message System characteristics Cause C9 Refrigerant circuit Refrigerant circuit fault: ■ Safety high pressure switch has activated ■ Compressor motor protection (thermal relay) has responded (if installed: Full wave soft starter or separate compressor motor protection has responded) ■ Hot gas klixon has responded Measures ■ Check flow and return temperature sensors in primary and secondary circuits.
Troubleshooting Messages (cont.) Message System characteristics Cause CB Primary temperature Heat pump stops Min. primary flow temperature (brine inlet) not achieved CC Coding card The coding card cannot be read Measures ■ Primary circuit flow temperature too low, no measures required ■ Check coding card and replace if required. ■ Check controller and sensor PCB and replace, if required. CD KM BUS Vitocom Communication error KM BUS Vitocom 100 Check Vitocom 100 connections and connecting cables.
Troubleshooting Messages (cont.) Message System characteristics Cause Measures D1 Compressor Compressor fault: ■ Reset compressor therThermal compressor mal relay, check setting, relay or safety element of restore delivered condifull wave soft starter (if tion ("Standard setinstalled) has respontings", see menu strucded. ture). Separate compressor ■ Check compressor motor protection (if electrical connections, installed) has respontest coil resistance of ded. compressor motor.
Troubleshooting Messages (cont.) Message System characteristics Cause D6 Flow switch Well circuit flow switch cannot detect a flow Measures ■ Check well pump. ■ Check primary circuit. ■ If no flow switch is installed, insert a jumper between X3.3/ X3.4. The signal can be tested at connection 216.3 or across terminals X3.3/ X3.4. E0 LON subscriber LON subscriber has failed or connection is faulty ■ Call up fault memory at faulty subscriber.
Troubleshooting Diagnosis (service scans) Calling up diagnosis Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Diagnosis" 3. Select required area, e.g.
Troubleshooting Diagnosis (service scans) (cont.) A B C D E F G H K L Ü System overview 1 0 3 7 1 45 41 Ç è1 è2 20 18 15 10 50 50 45 21 22 33 21 22 44 32 29 45 38 38 51 G N Back with ä A to L For an explanation of the contents of columns A to L, see the following tables. Columns C and K and not assigned. Natural cooling function N ( ) The arrow points at the heating/cooling circuit activated for cooling.
Troubleshooting Diagnosis (service scans) (cont.
Troubleshooting Diagnosis (service scans) (cont.) Heat pump module diagnosis As part of the heat pump module diagnosis, the compressor hours run can be scanned for different load classes. A load class specifies the compressor operation at a certain differential of evaporation and condensation temperature ΔTV/K. Compressor runtime (hours run according to load classes) Ü Runtime compressor h Runtime Select with 1 ? 3 4 5 230h ( Load class Service menu: 1. Press OK + å simultaneously for approx. 4 s.
Troubleshooting 5441 603 GB For an explanation of the relevant values in the individual lines, see the following table: Line (brief Field scan) 1 2 3 4 5 6 1 Control unit: Device: Version Coding card: Version Software version (SW Coding card: ID Low index) 2 System scheme Number Common demand temperature of KM BUS users 3 0 Program- ExtenSolar con- LON External ming unit: sion for trol unit: module: extension: Software heating Software Software Software index circuit version version version with mixer: So
Troubleshooting Diagnosis (service scans) (cont.) Line (brief scan) 9 10 Field 1 2 0 0 Control unit: Software version High 3 4 0 0 Control unit: Software version Low 5 6 0 0 Programming unit: Software version Testing outputs (actuator test) ■ Only actuators are shown that correspond to the actual system equipment level. ■ Activating the actuator test switches all actuators to zero volt. ■ One or several actuators can be started from this menu. ■ The actuator test stops automatically after approx.
Troubleshooting Function check (cont.) "Function check" menu Function Heating circuit 1 Heating circuit 2 Separate cooling circuit DHW (DHW cylinder) Swimming pool Electric heater (instantaneous heating water heater, accessory) Heat pump Solar System characteristics Secondary pump and heating circuit pump A1 are started. Heating circuit pump M2 starts. Open/close mixer every 5 min. Primary pump and circulation pump, separate cooling circuit are started. Open/close mixer every 5 min.
Troubleshooting Steps if the room temperature is too low (cont.) 2. Check throughput of affected heating circuits. Recommended temperature differential between heating flow and return approx. 8 K. 5. Increase the set room temperature for standard mode and match the heating curves. Operating instructions 3. Hydraulically balance the connected heating circuits. 4. Check the outside temperature sensor (see page 73). 6.
Troubleshooting Repairs Overview of internal components % M a g] c a:C] K lJ A aS sH aYNAaYNS sG Service aJ H ? G aYND kK C D aYNF F 5441 603 GB aYNG B aYNH 71
Troubleshooting Repairs (cont.
Troubleshooting Repairs (cont.) Positions cylinder drain & fill valve A B C C Drain & fill valve, cylinder, open to drain or fill the cylinder Draining the heat pump on the secondary side 1. Close on-site drain & fill valve. 2. Drain heat pump at secondary flow drain valve (see page 71). Checking sensors For the position of the sensors in the heat pump, see figure on page 71. 5441 603 GB For sensor connections to the controller and sensor PCB, see page 127.
Troubleshooting Repairs (cont.
Troubleshooting Repairs (cont.) Danger Contact with 'live' components can lead to severe injury from electric current. Before working on the equipment, always ensure that the power circuit is also at zero volt. Removing the fuse does not switch the power circuit to zero volt. Appliance too noisy Possible causes: ■ Transport locking bracket not removed: See page 22. ■ Control unit door not tightly sealed: See page 20.
Control unit settings by the contractor Control unit settings by the contractor The following pages only describe those parameters that can only be adjusted by specialists operating in the service menu at "Coding level 1". Customer level parameters that are described in the operating instructions are not explained here. ! Note The available parameters depend on the individual system configuration (e.g. parameters for heating circuit M2: display only if heating circuit M2 is configured).
Control unit settings by the contractor Control unit settings by the contractor (cont.) Alternatively, if the service menu was already activated: 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. Select language: "2" Note The parameters shown depend on the current device settings. Reinstating the delivered condition (Reset) 5441 603 GB Service Service menu: 1.
Parameter group system definition Parameter group system definition Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "System definition" 4. Select parameter. 7000 System scheme "System scheme 7000" Adjust the system scheme during commissioning according to the system version. 12 different system schemes are available (see technical guide). Setting 0 1 2 3 4 5 6 7-10 11 Heating circuit without mixer A1 — X X — — X X Do not adjust.
Parameter group system definition 7003 Temperature differential for the heating limit "Temperature differential heating 7003" Temperature differential for calculating the heating limit. Heating limit: Set room temperature minus "Temperature differential heating" If the average outside temperature calculated over 3 hours falls below the heating limit, central heating starts. Example: The selected set room temperature is 20 °C; the value set under "Temperature differential heating" is 4 K.
Parameter group system definition 7004 Temperature differential for the cooling… (cont.) Room cooling stops if the average outside temperature falls below 23 °C (because of the specified hysteresis of 1 K). Delivered condition Setting range Note This parameter is only available if cooling mode has been enabled via parameter "Cooling" (see page 110). 40 (≙ 4 K) 10 to 200 (≙ 1 to 20 K) 7010 External extension "External extension 7010" Enabling external extension H1.
Parameter group system definition 7008 Swimming pool (cont.) Swimming pool heating Valu Explanation e "1" Swimming pool is connected and will be heated. "0" Swimming pool will not be heated. Note The thermostat for swimming pool temperature control is connected to the control unit via external extension H1. Set parameter "External extension" to "1" (see page 80), otherwise the "Swimming pool" parameter will not be displayed.
Parameter group system definition 7011 External operating mode changeover (cont.) Setting 17 18 19 20-31 32 33 34 35 36-47 48 49 50 51 52-63 Heating circuit without mixer A1 X — X Do not adjust. — X — X Do not adjust. — X — X Do not adjust.
Parameter group system definition 7012 Operating mode for external operating mode… (cont.) Value "2" "3" Operating mode (see operating instructions) Heating DHW "Normal" "Normal" "Fixed value" "Temperature 2" (see set flow temperature on page 102) Delivered condition Setting range 2 0 to 3 7013 Duration of external operating mode changeover "Duration of operating mode changeover 7013" Note Only in conjunction with external extension H1.
Parameter group system definition 7013 Duration of external operating mode… (cont.) Example: The diagram shows the duration of external operating mode changeover B, subject to signal duration A, with parameter "Duration of operating mode changeover 7013" set to 8 h (delivered condition). The external operating mode changeover is enabled for at least 8 h (delivered condition), independent of the length of the signal.
Parameter group system definition 7014 External demand mixer "OPEN" "External demand mixer "OPEN" 7014" Note Only in conjunction with external extension H1. Setting for the way the signal "External demand" is to affect the heat pump (signal active when the contact is closed; see summary of PCBs from page 119). Setting 0 1 2-3 4 5 6-7 Note ■ The signal "External blocking" has a higher priority than the signal "External demand". ■ See also "Set flow temperature, external demand" on page 102.
Parameter group system definition 7015 External blocking mixer "CLOSED" (cont.) Setting 0 1 2-3 4 5 6-7 Heating circuit with mixer M2 Control mode Mixer "Close" Do not adjust. Control mode Mixer "Close" Do not adjust. Delivered condition Setting range Heat pump blocking No No Yes Yes 4 0 to 8 7017 Vitocom 100 "Vitocom 100 7017" Using the Vitocom 100 communication interface. Delivered condition Setting 0 1/0 Valu Explanation e "1" Vitocom 100 is installed and enabled. "0" Vitocom 100 is not used.
Parameter group system definition 701B Common system temperature sensor (cont.
Parameter group compressor Parameter group compressor Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "Compressor" 4. Select parameter. 5000 Enable compressor "Enable 5000" Enabling the compressor stage. Note Never block the heat pump compressor in standard mode. Valu Explanation e "1" Compressor stage is used. "0" Compressor stage is not used, e.g. in case of a fault.
Parameter group DHW Parameter group DHW Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "DHW" 4. Select parameter. 6000 Set cylinder temperature "Cylinder temperature DHW 6000" DHW cylinder set temperature for DHW heating. Operating instructions Note If the heat pump alone cannot achieve the set DHW temperature, the instantaneous heating water heater (accessory) is also started (if enabled via parameter "DHW with e heating 6015").
Parameter group DHW 6015 DHW reheating (cont.) Valu Explanation e "1" Instantaneous heating water heater (accessory) is connected and enabled for DHW reheating. "0" Instantaneous heating water heater (accessory) is not enabled for DHW reheating. Delivered condition Setting 1 1/0 6005 Minimum temperature for DHW cylinder "Minimum temperature 6005" Lower set temperature for DHW cylinder (minimum temperature).
Parameter group DHW 6007/6008 DHW / Booster heater hysteresis "DHW hysteresis 6007" "Booster heater hysteresis 6008" Cylinder temperature hysteresis for starting and stopping DHW heating. The set value determines the deviation from the set DHW cylinder temperature ("Cylinder temperature DHW 6000") at which DHW heating is started and stopped. Parameter "DHW hysteresis 6007" relates to DHW heating with the heat pump.
Parameter group DHW 6009 DHW start optimisation "Start optimisation 6009" Comfort function for DHW cylinder heating. Delivered condition Setting range 0 1/0 Delivered condition Setting range 0 1/0 Operating instructions 600A DHW stop optimisation "Stop optimisation 600A" Comfort function for DHW cylinder heating. Operating instructions 600C Set DHW temperature 2 "Set temperature 2 600C" Set temperature for auxiliary DHW heatup function to kill bacteria.
Parameter group DHW 6016 DHW heating priority "Combi cylinder 6016" No function. 6017 DHW at control high pressure "No. of attempts DHW 6017" High set cylinder temperatures can result in shutdowns through controlled high pressure. Upon demand, the control unit tries to restart DHW heating. This parameter determines the number of start attempts.
Parameter group solar Parameter group solar Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "Solar" 4. Select parameter. 7A00 Solar control unit "Solar control unit type 7A00" For adjusting the solar control unit used. Valu e "0" "1" "2" Explanation There is no solar control unit.
Parameter group solar 7A02/7A03 Solar circuit pump hysteresis (cont.) The set value determines the temperature differential between the collector temperature and the temperature of the DHW cylinder at which the solar circuit pump starts and stops. Delivered condition Setting range Note The value for "Hysteresis solar pump ON 7A02" must be greater than the value for "Hysteresis solar pump OFF 7A03".
Parameter group electric heater Parameter group electric heater Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "Electric heater" 4. Select parameter. 7900 Instantaneous heating water heater (accessory) "Inst. heating water heater 7900" If an instantaneous heating water heater (accessory) is installed in the heating water flow, it must be enabled. It can be enabled either for DHW reheating only and/or for heating mode. Parameter "Inst.
Parameter group electric heater 7902 Heating mode with booster heater "Heating with electro 7902" Enabling heating mode with the instantaneous heating water heater (accessory). If the set flow temperature cannot be achieved with the heat pump, an instantaneous heating water heater (accessory) can be used. Note The instantaneous heating water heater (accessory) has to be enabled separately with parameter "Inst. heating water heater 7900".
Parameter group electric heater 790A Stage at power-OFF (cont.) Valu Explanation e "0" Instantaneous heating water heater remains off during powerOFF, except for frost protection. "1" Max. output stage, e.g. 9 kW Delivered condition Setting range 0 0/1 790B Dual mode temperature instantaneous heating water heater "Dual mode temperature, electric heater 790B" Temperature limit for heating with the instantaneous heating water heater (accessory).
Parameter group internal hydraulics Parameter group internal hydraulics Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "Internal hydraulics" 4. Select parameter. 7300 Heat pump for drying a building "Heat pump for drying a building 7300" For drying buildings, the heat pump can be used in addition to the instantaneous heating water heater (accessory). If the heat pump is not ready for use (e.g.
Parameter group internal hydraulics 7303 Screed program (cont.) ■ The screed programme affects all enabled heating circuits in parallel. ■ The selected "Screed program" is continued after a power failure or after the control unit has been switched off. ■ The selected operating programme continues if the "Screed program" has terminated in accordance with the programme or, before its expiry, the temperature/time profile "0" is selected.
Parameter group internal hydraulics 7303 Screed program (cont.
Parameter group internal hydraulics 730C Set flow temperature, external demand "Set flow temperature, external demand 730C" Set flow temperature in case of external demand, e.g. from the swimming pool (see page 85). Delivered condition Setting range In contrast to room temperature-dependent or weather-compensated set flow temperatures, a fixed set flow temperature is selected here, for example for heating circuits.
Parameter group internal hydraulics 7340 Secondary pump operating mode (cont.
Parameter group buffer cylinder Parameter group heating water buffer cylinder Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "Buffer cylinder" 4. Select parameter. 7200 Heating water buffer cylinder "Buffer cylinder 7200" This function is only available for system schemes 1 and 2. The heating water buffer cylinder is optional for system schemes 1 and 2; system schemes 3 to 10 require the heating water buffer cylinder, which is preset.
Parameter group buffer cylinder 7203 Hysteresis (cont.) The set value determines the deviation from the set temperature of the heating water buffer cylinder (subject to operating mode) at which heating is started and stopped. C Heating the heating water buffer cylinder "OFF" D Heating the heating water buffer cylinder "ON" Note For system schemes 1 and 2, this function is only available if option "1" was selected under "Buffer cylinder 7200".
Parameter group buffer cylinder 7204 Maximum temperature (cont.) Note ■ For system schemes 1 and 2, this function is only available if option "1" was selected under "Buffer cylinder 7200". ■ If the value specified here is below the maximum possible set flow temperature of one of the connected heating circuits, this heating circuit may not be able to be supplied with the calculated flow temperature when there is a greater heat demand.
Parameter group heating circuits/cooling circuit Parameter group heating circuits Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "Heating circuit 1" or "Heating circuit 2" or "Separate cooling circuit" 4. Select parameter. Note The parameters in the parameter groups heating circuit 1, heating circuit 2 are identical.
Parameter group heating circuits/cooling circuit 2003 Enabling the remote control (cont.) Delivered condition Setting 0 1/0 2006/2007 Heating curve slope/level "Heating curve slope 2006" "Heating curve level 2007" Heating curve level and slope for all heating circuits (A1, M2). Delivered condition Setting range Operating instructions Heating curve level Heating curve slope 2006 2007 0 (≙ 0 K) 12 (≙ 1.2) –150 to +400 (≙ –15 to + 0 to 35 (≙ 0 to 3.
Parameter group heating circuits/cooling circuit 200B Room temperature hook-up (heating circuits) (cont.) This parameter determines the conditions under which the set flow temperature with weather-compensated control should be corrected by the room influence. Valu Explanation e "0" Weather-compensated control without room influence. Set flow temperature is not corrected. "1" Weather-compensated control with room influence only for "Reduced" operating mode.
Parameter group cooling Parameter group cooling Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "Cooling" 4. Select parameter. 7100 Cooling mode "Cooling 7100" Type of cooling mode. Cooling either affects one of the heating circuits or a separate cooling circuit. Delivered condition Setting range 0 0 to 3 Valu Explanation e "0" No cooling. "1" "Natural Cooling" Direct cooling using the NC-Box without mixer.
Parameter group cooling 7102 Room temperature separate cooling circuit "Room temperature 7102" With this parameter a different set room temperature than for the heating circuits can be specified for the separate cooling circuit. This makes it possible, for example, to also cool a storage room in winter, independent of the set room temperature.
Parameter group cooling 7104 Room hook-up cooling circuit (cont.) Delivered condition Setting range 0 0 to 50 7110/7111 Cooling curve (cooling circuit/separate cooling circuit) "Cooling curve level 7110" "Cooling curve slope 7111" If the room temperature does not meet the set value for a prolonged period, the cooling characteristics can be matched to the individual ambient conditions. This is achieved by changing the slope and level of the cooling curve for weathercompensated cooling mode.
Parameter group time Parameter group time Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "Time" 4. Select parameter. 7C00 - 7C06 Summertime/wintertime In the delivered condition, the changeover will always take place in the night from Saturday to Sunday on the last weekend in March and October. This setting can be changed with parameters "Summertime - month", "Summertime - week", "Summertime - day", "Wintertime - month", "Wintertime week", and "Wintertime - day".
Parameter group communication Parameter group communication Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "Communication" 4. Select parameter. 7710 LON communication module "LON module installed 7710" If LON communication module is installed in the control unit. Delivered condition Setting 0 1/0 Valu Explanation e "1" LON communication module is installed and enabled. "0" LON communication module is not enabled.
Parameter group communication 7798/7777 LON system number/subscriber number (cont.) Delivered condition Setting range Subscriber number 1 1 to 99 System number 1 1 to 5 7779 Fault manager "Fault manager 7779" Device is fault manager within a system. This parameter determines whether the device should collect and display all system fault messages. Furthermore, the control unit monitors all subscribers for failure and generates central fault messages. Valu Explanation e "1" Device is fault manager.
Parameter group communication 7797 Outside temperature via LON "Outside temperature 7797" If several subscribers use the current outside temperature value, this can be made available centrally by one device within a system. All other subscribers in the same system can receive the temperature values. Delivered condition Setting range 0 0 to 2 Note Only one subscriber within a system may transmit the outside temperature.
Parameter group communication 77FF Time via LON (cont.) This parameter determines the source from which the control unit receives the time and whether it is to be transmitted via LON to other subscribers. Note Only one subscriber within a system may transmit the time. Valu Explanation e "0" Device receives time from the internal clock of the control unit "1" Device receives time from another LON subscriber within the same system. "2" Device transmits the time from the internal clock of the control unit.
Parameter group operation Parameter group operation Service menu: 1. Press OK + å simultaneously for approx. 4 s. 2. "Coding level 1" 3. "Control" 4. Select parameter. 8800 Lock out controls "Lock out controls 8800" For locking and enabling the controls. Valu Explanation e "0" Enabling operation in the standard menu and in the extended menu. "1" Operation in the standard menu and in the extended menu blocked. Only manual operation possible.
Connection and wiring diagrams Overview of the PCBs and connection options Overview of electrical connections Vitocal 242-G, 400 V~ F B G D H C K B B A 5441 603 GB M B Service L 119
Connection and wiring diagrams Overview of the PCBs and connection options (cont.
Connection and wiring diagrams Overview of the PCBs and connection options (cont.
Connection and wiring diagrams Overview of the PCBs and connection options (cont.
Connection and wiring diagrams Overview of the PCBs and connection options (cont.) Main PCB (operational components 230 V~) sYH sYG sYF sYÖ sYA sYS 12 12345 1234 sYD fÖ F3 6.3 A (slow) M ?N N r ?N N Fuse 6.
Connection and wiring diagrams Overview of the PCBs and connection options (cont.) Operational components 230 V~ Plug Terminals Function Power supply PCB fÖ 210.1 Compressor control sYÖ 210.2 via EEV controller (refrigerant circuit control) 210.1 End of safety chain 210.2 211.1 Primary pump, well sYA pump control 211.2 Secondary pump (for underfloor heating circuit in series with the temperature limiter as maximum temperature limiter for underfloor heating system) 211.
Connection and wiring diagrams Overview of the PCBs and connection options (cont.) 3 rows of luster terminals (message and safety connections) 230V/ 50 Hz 1/N/PE L1 N ? X3 X2 1 1 2 3 4 6 G 7 + X1 N N N N N N N N N N 3 1 ? ? ? ? ? ? ? ? ? ? ? 1 PE 8 P 9 P 16 16 18 L1 X3 ■ Power supply terminals of the control unit "L1" and auxiliary components ■ Switched phase L1: X3.1 ■ Terminals for message and safety connections 5441 603 GB F1 Fuse 6.3 A (slow) X1 Terminals X1.
Connection and wiring diagrams Overview of the PCBs and connection options (cont.) Message and safety connections Terminals Function X3.1 Phase switched X3.3 Flow switch, well circuit X3.4 X3.6 X3.7 X3.8 X3.9 Primary circuit pressure switch and/or frost stat or Jumper ON/OFF switch Zero volt contact required: ■ Closed: Heat pump operational ■ Open: Heat pump shut down ■ Breaking capacity 230 V, 0.
Connection and wiring diagrams Overview of the PCBs and connection options (cont.
Connection and wiring diagrams Overview of the PCBs and connection options (cont.
Parts lists Parts list 5441 603 GB Obtain standard parts from your local supplier.
Parts lists Parts list (cont.) 770 Return temperature sensor PT500 solar 771 Terminal appliance fuse 772 Fuse holder 773 Appliance fuse 6.
Parts lists Parts list (cont.
Parts lists Parts list (cont.
Parts lists Parts list (cont.
Parts lists Parts list (cont.
Parts lists Parts list (cont.
Parts lists Parts list (cont.
Commissioning/service reports Hydraulic parameters report Setting and test values Set value Antifreeze concentrate primary circuit (brine) Overflow valve setting After 10 min.
Commissioning/service reports Control parameter report (cont.
Commissioning/service reports Control parameter report (cont.) Delivered condition 7300 7303 730D 730C 7320 7340 0 0 Do not adjust. 500 (≙ 50 °C) 0 0 7200 7202 7203 7204 7208 0 500 (≙ 50 °C) 50 (≙ 5 K) 600 (≙ 60 °C) 100 (≙ 10 °C) 2000 2001 2022 2003 2006 2007 200A 200B 200E 200 (≙ 20 °C) 200 (≙ 20 °C) 200 (≙ 20 °C) 0 12 (≙ 1.2) 0 (≙ 0 K) 10 3 400 (≙ 40 °C) 3000 3001 3022 3003 3006 3007 300A 300B 300E 200 (≙ 20 °C) 200 (≙ 20 °C) 200 (≙ 20 °C) 0 12 (≙ 1.
Commissioning/service reports Control parameter report (cont.) Parameter Delivered condition 7100 7101 7102 7103 7104 7110 7111 0 1 200 (≙ 20 °C) 100 (≙ 10 °C) 0 12 (≙ 1.
Specification Connection values of operational components Components ConnecConnected tion load [W] 5441 603 GB Primary pump/well pump Secondary pump Instantaneous heating water heater control, stage 1 (accessory) Circulation pump for cylinder heating (heating water side) NC-Box control Heating circuit pump A1 DHW circulation pump Solar circuit pump Total current 211.1 211.2 211.3 200 130 10 230 230 230 Max. switching current [A] 4(2) 4(2) 4(2) 211.4 130 230 4(2) 211.5 212.2 212.3 212.
Specification Specification (cont.) Rated voltage control unit/electronics Fuse, control unit/electronics (internal) Power consumption ■ Primary pump at stage 1/2/3 ■ Secondary pump at stage 1/2/3 ■ Cylinder primary pump (PWM) Max. power consumption control unit Rated output control unit/electronics IP rating *1 *2 Type BWT 106 BWT 108 BWT 110 3.3 6.2 540*1 3.5 6.4 710 3.8 6.7 910 mbar 580 580 540 °C 60 60 60 l 7.2 7.2 7.2 l l l/h kW A A A 9.
Specification Specification (cont.) 5441 603 GB Permiss. operating pressure refrigerant circuit high pressure Permiss. operating pressure refrigerant circuit low pressure Dimensions ■ Total length ■ Total width ■ Total height Total weight Permiss.
Specification Specification (cont.) *3 Type BWT 106 BWT 108 BWT 110 kW kW kW 6.0 4.6 1.50 4.0 7.8 6.0 1.85 4.2 10.1 7.9 2.34 4.3 kW kW kW 6.2 4.9 1.45 4.3 8.0 6.4 1.77 4.5 10.4 8.3 2.27 4.6 l l/h 2.8 870 3.1 1050 3.4 1450 mbar 670 640 590 °C °C 25 –5 25 –5 25 –5 l l l/h 3.3 6.2 540*3 3.5 6.4 710 3.8 6.7 910 mbar 580 581 540 °C 60 60 60 l 7.2 7.2 7.2 kW 600 l/h with instantaneous heating water heater 144 9.
Specification Specification (cont.) Rated voltage control unit/electronics Fuse, control unit/electronics (internal) Power consumption ■ Primary pump at stage 1/2/3 ■ Secondary pump at stage 1/2/3 ■ Cylinder primary pump (PWM) Max. power consumption control unit Rated output control unit/electronics IP rating Refrigerant circuit Refrigerant Fill volume Compressor A A A BWT 106 16.0 45.0 58.0 BWT 108 BWT 110 1/N/PE 230 V/50 Hz 17.1 23.0 45.0 45.0 67.0 98.
Specification Specification (cont.) Type bar bar bar bar mm mm RP G l l/h BWT 106 BWT 108 BWT 110 3.0 3.0 10.0 6.0 3.0 3.0 10.0 6.0 3.0 3.0 10.0 6.0 Cu 28 x 1 Cu 28 x 1 ¾" 1" Viessmann pipe ferrule DN20 multiconnect system 220 241 220 275 220 309 1.5 1.5 1.5 l/min 16.8 16.8 17.3 m2 5/3 5/3 5/3 °C 95 95 95 dB(A) 46 46 46 5441 603 GB Vitocal 242-G Permiss.
Menu structure Menu structure Service menu: Diagnosis Diagnosis System overview System 5441 603 GB Service Adjusted outside temp/actual Common flow temp Set/actual Operating status system Heating season Cooling period Buffer cylinder Operating status buffer cyl. Buffer cyl. time prog Central fault Operating status swimming pool Coding card User no. Ext. hook-up 0..
Menu structure Menu structure (cont.) Diagnosis (cont.) Heating circuit 1/2 Operating program Operating program/Operating status Heating time prog. Time prog htg cool Set room temp Act room temp Red. Set room temp Heating curve Slope heating/Level heating Heating circuit pump Holiday program departure day/return day Mixer Flow temperature Set flow temperature Cooling curve Slope cooling/level cooling Natural Cooling Diagnosis (cont.
Menu structure Menu structure (cont.) Diagnosis (cont.) Heat pump Compressor Primary source Secondary pump Valve heating/DHW Compr. hours run Compressor starts Flow temp primary Return temp primary Flow temp secondary Return temp sec. Inst.water htr.st.1 Inst.water htr.st.1 Runtime compressor Diagnosis (cont.) Temperature sensors 5441 603 GB Service Outside temperature Flow temp primary Return temp primary Flow temp secondary Return temp sec.
Menu structure Menu structure (cont.) Diagnosis (cont.) Signal inputs Ext. demand Ext. blocking Reheat suppression Power-OFF contact Primary source Safety high pressure Low pressure Control high pressure Compressor motor protection Flow switch Brief scan Service menu (cont.) Actuator test 5441 603 GB Compressor Primary source Secondary pump Instantaneous water heater st 1 Cylinder reheating Heating circ pump HC1 Heating circuit pump HC 2 Mixer HC2 Cyl. primary pump Cyl.
Menu structure Menu structure (cont.) Coding level 1 Note Menu content in coding level 1 and sequence corresponds to the details in table "Control parameters report"; see page 137.
Declaration of Conformity Declaration of conformity We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, declare as sole responsible body that the product Vitocal 242-G, incl.
Keyword index Keyword index A Acknowledging messages.................47 Activating, service menu....................76 Actuator test.......................................68 A-D converter.....................................57 Appliance fuse...................................74 Appliance too noisy............................75 Assembly...........................................20 5441 603 GB B BA KM BUS mixer HC.......................58 Brief scans.........................................
Keyword index Connection values of operational components.....................................141 Contact protector.....................120, 122 Contractor..........................................76 Control high pressure shutdown........93 Controller PCB.................................127 Control parameter reports................137 Control unit ■ Power supply..................................30 ■ Removing.......................................13 Control unit door................................
Keyword index Keyword index (cont.) Dimensions..........................................8 Diverter valve...................................101 Drain & fill valve.................................73 Draining, secondary heat pump side. 73 Drying a building................................99 Dual mode temperature ■ Electric heater.................................98 ■ Heating water buffer cylinder........106 Duration of external operating mode changeover........................................
Keyword index Keyword index (cont.) I Information regarding the electrical connections......................................122 Inst. heating water heater..................96 Installation............................................8 Installation conditions...........................8 Installation room...................................8 Instantaneous heating water heater ■ Dual mode temperature..................98 ■ Maximum stage..............................
Keyword index Keyword index (cont.) Low pressure.....................................61 Luster terminals...............................125 5441 603 GB M Main PCB.........................................123 Max. temperature ■ Maximum collector temperature.....94 ■ Solar...............................................94 Maximum stage electric heater..........97 Maximum temperature ■ DHW cylinder..................................90 ■ Parameter...............................
Keyword index Keyword index (cont.) 158 Programming unit...............................70 Pt 500.................................................73 Pump heating circuit 1.......................55 Pumps................................................71 PWM ■ Control connection........................127 Q Quick-action air vent valve.................25 R Receive heartbeat............................115 Receive interval for data..................115 Refrigerant circuit...............................
Keyword index Keyword index (cont.) 5441 603 GB Room temperature ■ Hook-up........................................108 ■ Normal..........................................107 ■ Reduced.......................................107 ■ Separate cooling circuit................111 Room temperature hook-up ■ Influence.......................................108 ■ Influence cooling mode.................111 ■ Operating mode hook-up..............108 Room temperature hook-up slope ■ Parameter...............................
Keyword index Keyword index (cont.) System definition ■ Changing the heating circuit operating mode...............................................81 ■ Common system sensor.................86 ■ Duration of operating mode changeover.....................................83 ■ External blocking mixer CLOSED...85 ■ External demand mixer OPEN.......85 ■ External extension..........................80 ■ Language........................................78 ■ Operating mode for external operating mode changeover........
5441 603 GB
5441 603 GB
5441 603 GB
Viessmann Limited Hortonwood 30, Telford Shropshire, TF1 7YP, GB Telephone: +44 1952 675000 Fax: +44 1952 675040 E-mail: info-uk@viessmann.com chlorine-free bleached paper Printed on environmentally friendly, Viessmann Werke GmbH&Co KG D-35107 Allendorf Telephone: +49 6452 70-0 Fax: +49 6452 70-2780 www.viessmann.com Subject to technical modifications. Compact heat pump with electric drive, 400 V~ and 230 V~ Output Serial number: Vitocal 242-G, 400 V~ Vitocal 242-G, 230 V~ 6 kW 7418 031 9 00000 ..
