Vaillant VWL 57/5 IS Operating, Installation And Maintenance Instructions Download Page 71

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Index

0020257319_02 Hydraulic station Installation and maintenance instructions

Voltage ................................................................................ 16

Weight ................................................................................. 24
Wiring .................................................................................. 32

Summary of Contents for VWL 57/5 IS

Page 1: ...ons en Installation and maintenance instructions Hydraulic station VWL 57 127 5 IS Publisher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 492191 18 0 Fax 492191 18 2810 info vaillant de www vaillant de ...

Page 2: ...en Operating instructions 1 en Installation and maintenance instructions 14 ...

Page 3: ... Operating concept 6 4 3 Menu display 6 4 4 Starting up the product 7 4 5 Checking the filling pressure in the heat pump circuit 8 4 6 Setting the heating flow temperature 8 4 7 Setting the domestic hot water temperature 8 4 8 Switching off the product s functions 8 5 Care and maintenance 8 5 1 Caring for the product 8 5 2 Maintenance 9 5 3 Reading maintenance messages 9 5 4 Checking the system pr...

Page 4: ...This product can be used by children aged from 8 years and above and persons with reduced physical sensory or mental capabil ities or lack of experience and knowledge if they have been given supervision or instruc tion concerning use of the product in a safe way and understand the hazards involved Children must not play with the product Cleaning and user maintenance work must not be carried out by...

Page 5: ...ggles Do not inhale or swallow Observe the safety data sheet that accom panies the brine fluid 1 3 7 Risk of injury from burns caused by touching refrigerant pipes The refrigerant pipes between the outdoor unit and the indoor unit may become ex tremely hot during operation There is a risk of burns Do not touch any uninsulated refrigerant pipes 1 3 8 Risk of malfunctions caused by incorrect power s...

Page 6: ...tdoor unit VWL 57 5 IS VWL 35 5 AS VWL 55 5 AS VWL 77 5 IS VWL 75 5 AS VWL 127 5 IS VWL 105 5 AS VWL 125 5 AS 3 Product description 3 1 Heat pump system Design of a typical heat pump system with split technology 1 2 4 3 5 6 1 Heat pump Outdoor unit 2 eBUS line 3 System control op tional 4 Control for the indoor unit 5 Heat pump Indoor unit 6 Refrigerant circuit 3 2 Design of the product 2 3 1 1 Op...

Page 7: ... up heater in operation Displayed together with the Heating mode symbol Electric back up heater active for heating mode Displayed together with the Domestic hot water generation symbol Electric back up heater active for domestic hot water mode eco mode Energy saving domestic hot water mode Heating mode Heating mode active Domestic hot water generation Domestic hot water mode active Cooling mode Co...

Page 8: ...igerant circuit The hot gas thermostat shuts down the heat pump if the tem perature in the refrigerant circuit is too high Following a wait ing period the heat pump attempts to start once more After three failed start attempts in succession a fault message is displayed Max refrigerant circuit temperature 135 Waiting period 5 minutes after the first occurrence Waiting period 30 minutes after the se...

Page 9: ...res of between 50 and 55 C are reached 4 4 4 Yield indicator You can use this function to display the environmental energy yield as a cumulative value for a period of a day a month and the total for the heating domestic hot water generation and cooling modes You can displays the working figure for a period of a month and the total for the heating and domestic hot water genera tion modes The workin...

Page 10: ...nstallation rises above 0 05 MPa 0 5 bar fault message F 22 goes out 1 Use Menu Live Monitor Water pressure to display the filling pressure in the heat pump circuit 2 If the pressure drops frequently identify and eliminate the reason for the pressure loss of heating water In form a competent person of this 4 6 Setting the heating flow temperature See the table in the appendix Overview of the end u...

Page 11: ...work in limp home mode in order to maintain the heating mode or do mestic hot water generation F 723 Building circuit Pressure too low If the filling pressure falls below the minimum pressure the heat pump will be switched off automatically Inform your competent person so that he can top up the heating water F 1120 Heating rod Phase failure If the electric back up heater is defective the anti legi...

Page 12: ... with and competent with all necessary electrical and building regula tions that may apply to the installation In addition all unvented domestic hot water cylinders must be installed by a competent person to the prevailing build ing regulations at the time of installation G3 All appliances shall be fully commissioned in accordance with our installa tion manual and Benchmark commissioning check lis...

Page 13: ...ng Min Max Basic display Right hand selection button Room temperature setpoint Current value Manual cooling demand Basic display Left hand selection button Domestic hot water cylinder tar get temperature Current value Domestic hot water cylinder ac tual temperature Current value Yield indicator Energy yield Day Heating Cumulative value kWh Energy yield Day Domestic hot water Cumulative value kWh E...

Page 14: ... of the heat pump without any external components connec ted as supplied Compressor modulation Current value Air inlet temperature Current value Immersion heater power Current value kW External current anode status Current value Outdoor temperature Current value Information Contact data Phone number Serial number Permanent value Operating hours total Cumulative value h Hours heating Cumulative val...

Page 15: ... pump circuit 8 Filling pressure of the heating installation 9 Freeze protection 6 Frost 3 Frost protection function 6 8 H Heating flow temperature 8 Setting without a control 8 Heating installation Draining 8 Heating mode combination product Deactivate 8 Hot gas thermostat 6 I Intended use 2 L Language 7 M Maintenance 3 9 Maintenance message 9 Menu 6 O Operating concept 6 Operator control element...

Page 16: ...CB s electronics box 28 6 3 Establishing the power supply 28 6 4 Installing components for the energy supply company lockout function 30 6 5 Limiting the power consumption 30 6 6 Menu functions without the optional system control 30 6 7 Installing the system control in the electronics box 31 6 8 Opening the electronics box 31 6 9 Cable route 31 6 10 Connecting a limit thermostat for the underfloor...

Page 17: ...h pressure switch off 41 11 9 Completing inspection and maintenance 41 12 Draining 41 12 1 Draining the product s heating circuit 41 12 2 Draining the heating installation 42 13 Decommissioning 42 13 1 Temporarily decommissioning the product 42 13 2 Permanently decommissioning the product 42 14 Recycling and disposal 42 14 1 Recycling and disposal 42 14 2 Disposing of the product and accessories 4...

Page 18: ...l compliance with all inspection and main tenance conditions listed in the instruc tions Intended use also covers installation in ac cordance with the IP code Any other use that is not specified in these instructions or use beyond that specified in this document shall be considered improper use Any direct commercial or industrial use is also deemed to be improper Caution Improper use of any kind i...

Page 19: ...Do not inhale any steam or gases that escape from the refrigerant circuit as a result of leaks Avoid skin or eye contact with the refriger ant In the event of skin or eye contact with the refrigerant seek medical advice 1 3 8 Risk of material damage caused by condensate inside the house In heating mode the lines between the heat pump and the heat source environment cir cuit are cold which means th...

Page 20: ... Great Britain Vaillant is a licensed member of the Bench mark Scheme Benchmark places responsibilities on both manufacturers and installers The purpose is to ensure that customers are provided with the correct equipment for their needs that it is installed commissioned and serviced in accordance with the manufacturer s instruc tions by a competent person approved at the time by the Health and Saf...

Page 21: ...l If the system control fails the product guarantees limited frost protection for the heating circuit 3 2 2 Low water pressure protection This function continuously monitors the pressure of the heat ing water in order to prevent a possible loss of heating wa ter If the water pressure falls below the minimum pressure an analogue pressure sensor switches off the product and switches the other module...

Page 22: ...ant circuit in which refri gerant circulates In heating mode cyclic evaporation compression liquefac tion and expansion take in heat energy from the surround ings and transfer it to the building In cooling mode heat energy is extracted from the building and released into the environment 3 4 1 Operating principle heating mode 6 5 4 3 1 2 1 Evaporator heat ex changer 2 4 port diverter valve 3 Fan 4 ...

Page 23: ... relief valve 2 Heating return 3 Heating flow 4 Domestic hot water cylinder flow 5 Domestic hot water cylinder return 6 Liquid pipe connection 7 Hot gas pipe connection 3 7 Service valve At the service valve you can test the vacuum carry out pressure tests and fill the refrigerant circuit 3 8 Information on the data plate The data plate is located on the rear of the electronics box Information Mea...

Page 24: ...ts of the applicable directives as stated on the data plate The declaration of conformity can be viewed at the manufac turer s site 3 11 Application limits The product works between a minimum and maximum out door temperature These outdoor temperatures define the operating limits for the heating mode domestic hot water mode and cooling mode See Technical data Page 61 Operating outside of the operat...

Page 25: ...scope of delivery is complete and intact Number Designation 1 Hydraulic station 1 Enclosed documentation 1 Bag with installation material 1 Selection lever for prioritising diverter valve 1 Filling device 1 5 pole 400 V connection cable 1 Adhesive strips for noise reduction 4 3 Selecting the installation site The installation site must be below 2000 metres above sea level Select a dry room that is...

Page 26: ...litate access for maintenance and repair work When using the accessories observe the minimum clear ances installation clearances Ensure that no highly flammable parts come into contact with the components as these may reach temperatures of over 80 C Ensure that there is a minimum clearance between the highly flammable parts and the hot components Minimum clearance 200 mm 4 6 Wall mounting the prod...

Page 27: ...apparatus on site has a suf ficient load bearing capacity Use individual stands or primary walling for example Do not wall mount the product if you cannot provide wall mounting apparatus with a sufficient load bearing capacity Condition The fixing material is not permitted for the wall Wall mount the product as described in the illustration using the permitted fixing material provided on site 4 7 ...

Page 28: ...not find any excess pressure check all of the screwed con nections and pipes for leaks For heating installations with solenoid valves or thermo statically controlled valves install a bypass with bypass valve in order to guarantee a volume flow of at least 40 5 2 Routing refrigerant pipes 1 Observe the information on handling refrigerant pipes in the installation instructions for the outdoor unit 2...

Page 29: ...andards Connection symbols Page 22 5 6 Installing the heating circuit connections 1 Install the filling device on the product s heating return using the seal provided 1 2 2 Install the return 1 and the flow 2 for the heating cir cuit in accordance with the relevant standards Connection symbols Page 22 5 7 Installing a drain on the expansion relief valve 1 1 Install a drain hose 1 on the expansion ...

Page 30: ...sponds to that of the product s main power supply cabling 10 Make sure that access to the power supply is always available and is not covered or blocked 11 If the local power supply network operator requires that the heat pump is controlled using a blocking signal install a corresponding contact switch as prescribed by the power supply network operator 6 2 Opening the power supply PCB s electronic...

Page 31: ...ff with a con ductor cross section of 4 mm 2 and a temperature resist ance of 90 C Use a 3 pole power supply cable high tariff with a conductor cross section of 0 75 mm 2 and a temperature resistance of 90 C 4 Remove the cable jacket until there is only 30 mm left 5 Connect the power supply cable as shown 6 Use the strain relief clamp to secure the cable in place 7 Observe the instructions on conn...

Page 32: ...connection S21 in the system control Option 2 Disconnect the power supply with con tactor Upstream of the indoor unit install a contactor into the power supply for the low tariff Install a 2 pole control cable Connect the control output for the ripple control receiver to the control input for the contactor Undo the lines to plug X311 which were installed at the factory and remove these along with ...

Page 33: ...upling the mobile base station and the system control 6 8 Opening the electronics box 1 Remove the front casing Page 25 B A C 2 Hinge the electronics box 1 forwards 3 Detach the four clips 3 on the left and the right from the brackets 6 9 Cable route 24V eBUS Route the 24 V cable and the eBUS cable through the left hand strain reliefs on the electronics box 6 10 Connecting a limit thermostat for t...

Page 34: ... 25 cm If this is not possible use shielded lines Lay the shielding on one side of the sheet for the product s electronics box 3 Shorten the connection cables according to require ments 30 mm 4 To prevent short circuits if a strand accidentally comes loose only strip the outer sheathing of flexible lines to a maximum of 30 mm 5 Ensure the inner conductor insulation is not damaged when stripping th...

Page 35: ...cuit the sys tem may become damaged If the screed drying is activated without a system control purge the system manu ally No automatic purging takes place Screed drying You can use this function to dry heat freshly laid screed in accordance with the construction regulations accord ing to a defined time and temperature schedule without having a system control or the outdoor unit connected When scre...

Page 36: ... or topping up the installation check the quality of the heating water Checking the quality of the heating water Remove a little water from the heating circuit Check the appearance of the heating water If you ascertain that it contains sedimentary materials you must desludge the installation Use a magnetic rod to check whether it contains mag netite iron oxide If you ascertain that it contains mag...

Page 37: ...e used the above mentioned additives inform the end user about the measures that are required Inform the end user about the measures required for frost protection 7 4 Filling and purging the heating installation 1 Flush the heating installation thoroughly prior to filling 2 Open all of the thermostatic valves on the heating in stallation and if required all other isolation valves 3 If no domestic ...

Page 38: ...after electrical installation the installation assist ants for the system components will start automatically Set the required values on the control panel of the in door unit first then on the optional system control and the other system components 7 7 Running the installation assistants The installation assistant is launched when the product is switched on for the first time It provides direct ac...

Page 39: ...to Menu Installer level and confirm by pressing OK 3 Set the value 17 code and confirm by pressing 7 14 Restarting the installation assistants You can restart the installation assistant at any time by call ing it up in the menu Menu Installer level Start inst assistant 7 15 Calling up statistics Menu Installer level Test menu Statistics You can use this function to call up the statistics for the h...

Page 40: ...9 1 Configuring the heating installation The installation assistant is launched when the product is switched on for the first time When the installation assistant is complete you can further adjust the parameters of the in stallation assistant for example in the Configuration menu To adjust the water flow rate generated by the heat pump to match the specific installation you can set the maximum av...

Page 41: ...splay shows a fault code F xxx Fault codes have priority over all other displays Fault codes Page 53 If multiple faults occur at the same time the display shows the corresponding fault codes for two seconds each in se quence Eliminate the fault To restart the product press the reset button Operating instructions If you are unable to eliminate the fault and the fault re curs despite several reset a...

Page 42: ...iminate any deviations between the actual condition and the target condition This is normally done by cleaning setting and if necessary repla cing individual components that are subject to wear 11 2 Procuring spare parts The original components of the product were also certified by the manufacturer as part of the declaration of conformity If you use other non certified or unauthorised parts during...

Page 43: ...5 bar 0 1 bar m Fill the expansion vessel with nitrogen If nitrogen is not available use air 3 Fill the heating circuit Page 35 11 7 Checking and correcting the filling pressure of the heating installation If the filling pressure falls below the minimum pressure a maintenance message is shown on the display Min heating circuit pressure 0 05 MPa 0 50 bar Top up the heating water in order to start u...

Page 44: ...risk of material damage caused by freezing Ensure that heating water flows through the indoor unit s condenser heat ex changer or it is completely drained when extracting refrigerant on the secondary side 3 Extract the refrigerant 4 Dispose of or recycle the product and its components 14 Recycling and disposal 14 1 Recycling and disposal Disposing of the packaging Dispose of the packaging correctl...

Page 45: ...ingle power supply 230 V bridge between X311 and X310 for dual power supply Replace the bridge at X311 with the 230 V connection 3 Earthing 4 X300 Power supply connection 5 Earth wire to X1 on the control PCB 6 X302 Safety cut out 7 X301 Back up heater 8 X328 Data connection to the control PCB 9 X313 Power supply for the control PCB or the op tional VR 70 VR 71 or the optional external current ano...

Page 46: ...nsor DCF system temperature sensor multi function input 7 X106 S20 Limit thermostat 8 X106 S21 ESCO contact 9 X106 BUS eBUS bus connection outdoor unit VRC 700 VR 70 VR 71 10 X16 Internal heating pump 11 X15 Internal prioritising diverter valve for heating circuit cylinder charging 12 X11 Multi function output 2 Domestic hot water circulation pump 13 X13 Multi function output 1 14 X14 Multi functi...

Page 47: ... 2 2 N L1 L2 L3 5 5 BUS S21 BUS X106 L1 L1 L2 L3 N L N X300 X311 L N X310 L1 L2 L3 N L N X200 BUS X206 X210 L N X211 2 2 3 3 1 2 3 4 5 6 7 8 9 10 1 Meter fuse box 2 Household electricity meter 3 Heat pump electricity meter 4 Ripple control receiver 5 Potential free normally open contact for actuating S21 for the energy supply company lockout function 6 Disconnector circuit breaker fuse 7 System co...

Page 48: ...311 L N X310 kWh N L1 L2 L3 kWh L1 L2 L3 N L N X200 BUS X206 X210 L N X211 BUS S21 BUS X106 L1 L1 L2 L3 N L N X300 X311 L N X310 5 5 2 2 2 2 3 3 3 3 1 2 3 4 5 6 7 8 9 10 1 Meter fuse box 2 Household electricity meter 3 Heat pump electricity meter 4 Ripple control receiver 5 Partition for the energy supply company lockout function 6 Disconnector circuit breaker fuse 7 System control 8 Indoor unit c...

Page 49: ... switch ops Current value Im heater power cons Current value kWh Im heater op hours Current value h Im heater switch ops Current value No switch ops Current value Installer level Test menu Check programmes P 04 Heating mode Select P 06 Purge building circuit Select P 11 Cooling mode Select P 12 De icing Select P 27 Immersion heater Select P 29 High pressure Select Installer level Test menu Sensor ...

Page 50: ...ircuit Pressure 0 3 bar 0 1 T 1 43 Building circuit Flow rate 0 4000 l h 1 T 1 44 Cylinder temperature 40 90 0 1 T 1 46 Lockout contact S20 Closed Open Closed Open Closed T 1 59 Capacitor outlet temperat ure 40 90 0 1 T 1 69 Outdoor temperature 40 90 0 1 T 1 70 System temperature 40 90 0 1 T 1 71 DCF status Current value No DCF signal Validate DCF signal Valid DCF signal T 1 72 Lockout contact S21...

Page 51: ...ing None Software version Current value of the control PCB HMU indoor unit xxxx HMU outdoor unit xxxx and the display AI xxxx xxxx xx xx Installer level Resets Statistics Reset statistics Yes No No Statistics Reset fault Yes No No Factory settings Restore fact ory settings Yes No No Installer level Start inst assistant Language Languages available for selection 02 English Syst control avail Yes no...

Page 52: ...ng Compressor active The compressor works in order to meet the cooling demand S 117 Cooling Compressor mode overrun The cooling demand is met the compressor is switched off The pump and fan overrun S 125 Heating Immersion heater active The immersion heater is used in heating mode S 132 Domestic hot water Compressor blocked The compressor is blocked for domestic hot water mode because the heat pump...

Page 53: ...ree unsuccessful restarts the heat pump is switched off and the fault message F 788 is displayed S 280 Freq converter fault Compressor The compressor motor or wiring is defective S 281 Freq converter fault Mains voltage There is overvoltage or undervoltage S 282 Freq converter fault Overheating If the cooling of the frequency inverter is not sufficient the heat pump is switched off for one hour an...

Page 54: ...onverter and the outdoor unit s PCB After this oc curs three times fault message F 753 appears S 590 Fault 4 port valve posi tion not correct The 4 port diverter valve does not move fully to the heating or cooling position G Maintenance messages Code Meaning Cause Remedy M 23 Status external current anode External current anode not recog nised If required check for a cable break M 32 Building circ...

Page 55: ...t re turn temp The sensor is not connected or the sensor input has short circuited Check and if required replace the sensor Replace the cable harness F 520 Sensor fault Building circuit flow temp The sensor is not connected or the sensor input has short circuited Check and if required replace the sensor Replace the cable harness F 526 Sensor fault EEV outlet temp The sensor is not connected or the...

Page 56: ...volume flow through the outdoor unit s heat exchanger heating mode leads to an insuffi cient energy input in the environment circuit heating mode or building cir cuit cooling mode Refrigerant volume too low If the building circuit contains ther mostatic valves check that they are suitable for cooling mode check volume flow in cooling mode Check the fan unit for dirt Check the EEV does the EEV move...

Page 57: ...essor is blocked while the fault message is present F 752 Fault Frequency converter Internal electronics fault on the in verter PCB Mains voltage outside of 70 V 282 V Check the integrity of the power sup ply cables and compressor connec tion cables The plugs must audibly click into place Check the cable Check the mains voltage The mains voltage must be between 195 V and 253 V Check the phases Rep...

Page 58: ...ncy converter Allow the frequency converter to cool and restart the product Check the frequency converter s air route Check that the fan is working cor rectly The maximum environmental tem perature of the outdoor unit 46 C has been exceeded F 820 Connection fault Building circuit pump Pump does not report any signal back to the heat pump Check the cable to the pump for defects and if required repl...

Page 59: ...cking the electrical connections Check the voltage at the heat pump electrical connection Reduce energy supply company anti cycling time to under three hours F 1120 Immersion heater Phase failure Electric back up heater defective Poorly tightened electrical connec tions Mains voltage too low Check the electric back up heater and its power supply Check the electrical connections Measure the voltage...

Page 60: ... 8 5 kW 9 kW M Inspection and maintenance work Maintenance work Interval 1 Checking the admission pressure of the expansion vessel Annually 41 2 Check that the prioritising diverter valve can move easily visually audibly Annually 3 Checking the refrigerant circuit removing rust and oil Annually 4 Checking the electronics boxes removing dust from the ventilation slits Annually 5 Checking the vibrat...

Page 61: ... 1256 85 1070 90 916 95 786 100 678 105 586 110 509 115 443 120 387 125 339 130 298 135 263 140 232 145 206 150 183 155 163 O Characteristic values for the internal temperature sensors hydraulic circuit Sensors TT620 TT650 Temperature C Resistance ohms 0 33400 5 25902 10 20247 15 15950 20 12657 25 10115 30 8138 35 6589 40 5367 45 4398 50 3624 55 3002 60 2500 65 2092 70 1759 75 1486 80 1260 85 1074...

Page 62: ... VR10 internal temperature sensors cylinder temper ature Temperature C Resistance ohms 40 88130 35 64710 30 47770 25 35440 20 26460 15 19900 10 15090 5 11520 0 8870 5 6890 10 5390 15 4240 20 3375 25 2700 30 2172 35 1758 40 1432 45 1173 50 966 55 800 60 667 65 558 70 470 75 397 80 338 85 288 90 248 95 213 100 185 105 160 110 139 115 122 120 107 125 94 130 83 135 73 140 65 145 58 150 51 ...

Page 63: ...kaging 23 kg 24 kg 26 5 kg Rated voltage 230 V 10 15 50 Hz 1 N PE 230 V 10 15 50 Hz 1 N PE 230 V 10 15 50 Hz 1 N PE Rated voltage 400 V 10 15 50 Hz 3 N PE 400 V 10 15 50 Hz 3 N PE 400 V 10 15 50 Hz 3 N PE Rated power maximum 5 4 kW 5 4 kW 8 8 kW Rated current maximum 23 50 A 230 V 14 50 A 400 V 23 50 A 230 V 14 50 A 400 V 23 50 A 230 V 14 00 A 400 V IP rating IP 10B IP 10B IP 10B Overvoltage categ...

Page 64: ... bar Maximum operating pressure 0 3 MPa 3 0 bar 0 3 MPa 3 0 bar 0 3 MPa 3 0 bar Min heating mode flow temperat ure 20 20 20 Max heating mode flow temperat ure with compressor 55 55 55 Max heating mode flow temperat ure with back up heater 75 75 75 Min cooling mode flow temperat ure 7 7 7 Max flow temperature in cooling mode 25 25 25 Min nominal volume flow with 3 kW outdoor unit 0 3 m h Min nomina...

Page 65: ...with a 12 kW outdoor unit 1 18 m h Max volume flow during continu ous operation at the operating lim its with a 3 kW outdoor unit 0 54 m h Max volume flow during continu ous operation at the operating lim its with a 5 kW outdoor unit 0 79 m h Max volume flow during continu ous operation at the operating lim its 1 08 m h Max volume flow during continu ous operation at the operating lim its with a 1...

Page 66: ...hickness hot gas pipe 0 8 mm 0 95 mm 0 95 mm Minimum wall thickness liquid pipe 0 8 mm 0 8 mm 0 8 mm Refrigerant type R410A R410A R410A Refrigerant Global Warming Po tential GWP 2088 2088 2088 Refrigerant fill quantity 1 50 kg 2 39 kg 3 60 kg Permissible operating pressure maximum 41 5 bar 41 5 bar 41 5 bar Compressor type Rotary piston Rotary piston Rotary piston Compressor oil type Specific poly...

Page 67: ...Appendix 0020257319_02 Hydraulic station Installation and maintenance instructions 65 S Commissioning Checklist Applicability Great Britain ...

Page 68: ...HLJKW Yes 7KH V VWHP KDV EHHQ ÀXVKHG DQG FOHDQHG LQ DFFRUGDQFH ZLWK 6 DQG KHDW SXPS PDQXIDFWXUHU V LQVWUXFWLRQV Yes What system cleaner was used What inhibitor was used Quantity litres Is the system adequately frost protected Yes OUTDOOR UNIT Are all external pipeworks insulated Yes Is the fan free from obstacles and operational Yes Has suitable consideration been made for waste water discharge Ye...

Page 69: ...ngineer name Company name Telephone No 2SHUDWLYH 1R Comments Signature SERVICE 05 Date Engineer name Company name Telephone No 2SHUDWLYH 1R Comments Signature SERVICE 07 Date Engineer name Company name Telephone No 2SHUDWLYH 1R Comments Signature SERVICE 09 Date Engineer name Company name Telephone No 2SHUDWLYH 1R Comments Signature SERVICE 02 Date Engineer name Company name Telephone No 2SHUDWLYH...

Page 70: ...setting heating mode 39 Freeze protection 19 Frost 17 Frost protection function 19 H Heating circuit connections 27 High pressure switch off 41 Hot water temperature 17 I Inspection 40 Inspection work 41 Installation assistant 36 Restart 37 Installation assistant ending 36 Installation clearances 24 Installer level calling up 37 Intended use 16 L Language 36 Live Monitor 39 Low water pressure prot...

Page 71: ...Index 0020257319_02 Hydraulic station Installation and maintenance instructions 69 V Voltage 16 W Weight 24 Wiring 32 ...

Page 72: ...oad Belper 1 1 Derbyshire 1 1 DE56 1JT Telephone 0330 100 3461 info vaillant co uk www vaillant co uk These instructions or parts thereof are protected by copyright and may be reproduced or distributed only with the manufacturer s written consent 0020257319_02 ...

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Vaillant VWL 57/5 IS, Operating, Installation And Maintenance Instructions

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