Chapters
Table of Contents
Troubleshooting
Related Manuals for Vaillant VWL 57/5 IS
Summary of Contents for Vaillant VWL 57/5 IS
- Page 1 Operating instructions 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 Operating instructions ........1 Installation and maintenance instructions..14...
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Page 3: Table Of Contents
Contents Operating instructions Contents Safety ..............2 Action-related warnings ......... 2 Intended use ............2 General safety information ........2 Notes on the documentation ......4 Observing other applicable documents ....4 Storing documents..........4 Validity of the instructions ........4 Product description.......... -
Page 4: Operating Instructions
1 Safety Safety This product can be used by children aged from 8 years and above and persons with Action-related warnings reduced physical, sensory or mental capabil- ities or lack of experience and knowledge if Classification of action-related warnings they have been given supervision or instruc- The action-related warnings are classified in tion concerning use of the product in a safe accordance with the severity of the possible... - Page 5 Safety 1 1.3.3 Risk of injury and material damage 1.3.7 Risk of injury from burns caused by due to maintenance and repairs touching refrigerant pipes carried out incorrectly or not carried The refrigerant pipes between the outdoor out at all unit and the indoor unit may become ex- ▶...
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Page 6: Notes On The Documentation
Keep this manual and all other applicable documents safe for future use. Validity of the instructions These instructions apply only to: Product Outdoor 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... -
Page 7: Control Panel
Product description 3 Control panel Symbol Meaning Explanation – Electric back-up Displayed flashing: Electric heater back-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"... -
Page 8: Ce Marking
4 Operation – CE marking 60 minutes of uninterrupted operation 3.10.6 Safety cut-out (SCO) in the heating circuit If the temperature in the heating circuit of the internal elec- tric back-up heater exceeds the maximum temperature, the The CE marking shows that the products comply with the safety cut-out shuts down the electric back-up heater as a basic requirements of the applicable directives as stated on securing measure. -
Page 9: Starting Up The Product
Operation 4 ◁ Depending on the source of energy obtained from the Note environment, domestic hot water outlet temperatures Path details at the start of a section specify how to of between 50 and 55 °C are reached. access this function, e.g. Menu ¬ Information ¬ Contact data. -
Page 10: Checking The Filling Pressure In The Heat Pump Circuit
5 Care and maintenance 4.4.10 Serial number and article number Setting the heating flow temperature ▶ Menu → Information → Serial number See the table in the appendix. Overview of the end user operating level The product's serial number is displayed. The article number is found in the second line of the serial Setting the domestic hot water temperature number. -
Page 11: Maintenance
Troubleshooting 6 Maintenance Detecting and eliminating faults ▶ If problems occur whilst operating the product, you can Applicability: Except Great Britain carry out certain checks with the aid of the table. An annual inspection and biennial maintenance of the Troubleshooting (→ Page 11) product carried out by a competent person is a prerequisite ▶... -
Page 12: Arranging Disposal Of Refrigerant
Guarantee and customer service Guarantee Applicability: Great Britain Vaillant provides a full parts and labour guarantee for this appliance for the duration as shown on the enclosed re- gistration card which must be fully completed and returned within 30 days of installation. All appliances must be installed... -
Page 13: Appendix
Appendix Appendix Troubleshooting Problem Possible cause Remedy Building power supply switched off Switch on building power supply Domestic hot water or heating set to "off"/domestic Ensure that domestic hot water mode and/or hot water temperature or target temperature set too heating mode is activated in the system control. - Page 14 Appendix Setting level Values Unit Increment, select Default setting Setting Min. Max. Building circuit pressure Current value Heating circuit flow rate Current value Switch-on delay Outdoor unit Current value Switch-on delay Indoor unit Current value ℃ Flow temp. setpoint Current value ℃...
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Page 15: Index
Index Index Safety cut-out ................ 6 Serial number ..............4, 8 Article number ............... 8 Setting the display contrast ........... 7 Summer mode............... 8 Battery ................... 9 System pressure ..............9 Brine fluid ................3 Building circuit pressure ............7 Troubleshooting.............. - Page 16 Contents Installation and maintenance Installing components for the energy supply company lockout function ........30 instructions Limiting the power consumption ......30 Menu functions without the optional system Contents control ..............30 Installing the system control in the electronics Safety ..............16 box ...............
- Page 17 Contents Adapting the unit to the heating 5.4 kW back-up heater........57 installation............38 8.54 kW back-up heater at 230 V ...... 57 Configuring the heating installation ..... 38 8.54 kW back-up heater at 400 V ...... 58 Remaining feed head of the product ....38 Inspection and maintenance work ....
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Page 18: Installation And Maintenance Instructions
1 Safety Safety Intended use also covers installation in ac- cordance with the IP code. Action-related warnings Any other use that is not specified in these Classification of action-related warnings instructions, or use beyond that specified in The action-related warnings are classified in this document, shall be considered improper accordance with the severity of the possible use. - Page 19 Safety 1 ▶ In the event of skin or eye contact with the tact gap of at least 3 mm, e.g. fuse or cir- cuit breaker). refrigerant, seek medical advice. ▶ Secure against being switched back on 1.3.8 Risk of material damage caused by again.
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Page 20: Regulations (Directives, Laws, Standards)
▶ Observe the national regulations, stand- ards, directives, ordinances and laws. Benchmark Applicability: 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... -
Page 21: Notes On The Documentation 2
Pass these instructions and all other applicable docu- ments on to the end user. Validity of the instructions These instructions apply only to: Product Outdoor unit VWL 57/5 IS VWL 35/5 AS VWL 55/5 AS VWL 77/5 IS VWL 75/5 AS Heat pump, outdoor unit... -
Page 22: Cooling Mode
3 Product description 3.4.2 Operating principle, cooling mode 23 hours, are switched on for 10–20 seconds, one after the other. Applicability: Product with cooling mode 3.2.5 Safety cut-out (SCO) in the heating circuit If the temperature in the heating circuit of the internal elec- tric back-up heater exceeds the maximum temperature, the safety cut-out shuts down the electric back-up heater as a securing measure. -
Page 23: Service Valve
The data plate is located on the rear of the electronics box. Information Meaning Serial no. Unique unit identification number Nomen- Vaillant, heat pump, air clature 5, 7, 12 Heating output in kW Heating mode or cooling mode Condenser Prioritising diverter... -
Page 24: Connection Symbols
3 Product description 3.11 Application limits Information Meaning The product works between a minimum and maximum out- Refri- Refrigerant, global warming poten- gerant tial door temperature. These outdoor temperatures define the circuit operating limits for the heating mode, domestic hot water mode and cooling mode. -
Page 25: Buffer Cylinder
3 kW and 5 kW 40 l 15 l volume volume output VWL 57/5 IS 1.5 kg 3.41 m³ 7 kW output 55 l 20 l VWL 77/5 IS 2.4 kg 5.45 m³ 10 kW and... -
Page 26: Dimensions
4 Set-up Dimensions Minimum clearances and installation clearances Min. 200 mm 1000 mm Min. 200 mm > 600 mm ▶ Provide sufficient clearance on both sides of the product in order to facilitate access for maintenance and repair work. ▶ When using the accessories, observe the minimum clear- ances/installation clearances. -
Page 27: Removing The Front Casing
Set-up 4 Removing the front casing Check whether the wall has sufficient load-bearing ca- pacity to bear the operating weight of the product. Check if the supplied fixing material may be used for the wall. Condition: The load-bearing capacity of the wall is sufficient, The fixing material is permitted for the wall ▶... -
Page 28: Hydraulics Installation
5 Hydraulics installation Hydraulics installation Danger! Risk of scalding and/or risk of material damage due to incorrect installation lead- ing to escaping water. Stresses in connection pipes can cause leaks. ▶ Install the connection pipes such that they are free from mechanical stress. Caution. -
Page 29: Checking The Refrigerant Pipes For Tightness
Electrical installation 6 Tighten the flare nut. Heating Pipe diameter Tightening torque output 3 to 5 kW 1/2 " 50 … 60 Nm 7 to 12 kW 5/8 " 65 … 75 Nm Connect the liquid pipe (1). Use the product's flare nuts. Tighten the flare nut. -
Page 30: Opening The Power Supply Pcb's Electronics Box
6 Electrical installation Establishing the power supply Observe the technical connection conditions for con- necting to the energy supply company's low-voltage network. Use the data plate to determine whether the product requires a 1~/230V or a 3~/400V electrical connection. The product is preconfigured for the unblocked 1~/230V connection. - Page 31 Electrical installation 6 ▶ Ensure that the mains voltage is in the Note the specifications on the sticker on the electronics box. permissible range. Use a 3-pole power supply cable (low tariff) with a con- ductor cross-section of 4 mm and a temperature resist- ance of 90 °C.
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Page 32: Installing Components For The Energy Supply Company Lockout Function
6 Electrical installation ▶ ▶ Ensure that the mains voltage is in the Install a 2-pole control cable. Connect the control output for the ripple control receiver to the control input for the permissible range. contactor. ▶ Undo the lines to plug X311, which were installed at the factory, and remove these along with plug X310. -
Page 33: Installing The System Control In The Electronics Box
Electrical installation 6 Installing the system control in the electronics box Hinge the electronics box (1) forwards. Detach the four clips (3), on the left and the right, from the brackets. Cable route 24V / eBUS ▶ Remove the cover from the electronics box. Route the 24 V cable and the eBUS cable through the Connect the DIF cable –... -
Page 34: Carrying Out The Wiring
6 Electrical installation 6.11 Carrying out the wiring Danger! ≤ 30 mm Risk of death from electric shock! Continuous voltage is present at power sup- To prevent short circuits if a strand accidentally comes ply terminals L1, L2, L3 and N: loose, only strip the outer sheathing of flexible lines to a maximum of 30 mm. -
Page 35: Connecting The Domestic Hot Water Cylinder
Start-up 7 6.14 Connecting the domestic hot water cylinder ing to a defined time and temperature schedule, without having a system control or the outdoor unit connected. Connect the temperature sensor (VR10) for the do- When screed drying is activated, all the selected operating mestic hot water cylinder to the corresponding connec- modes are interrupted. -
Page 36: Setting The Prioritising Diverter Valve
7 Start-up ▽ Checking and treating the heating The settings for the function can be changed in the current programme. water/filling and supplementary water ▶ Return to the programme steps in order to Caution. change the settings or the current day. ◁... -
Page 37: Filling And Purging The Heating Installation
Start-up 7 Filling and purging the heating installation Total Water hardness at specific system volume heating Flush the heating installation thoroughly prior to filling. > 20 l/kW output ≤ 20 l/kW > 50 l/kW ≤ 50 l/kW Open all of the thermostatic valves on the heating in- stallation and, if required, all other isolation valves. -
Page 38: Purging
7 Start-up When you start up the heat pump system for the first Note time after electrical installation, the installation assist- If you fill the heating circuit at an external ants for the system components will start automatically. location, you must install an additional mano- Set the required values on the control panel of the in- meter to check the pressure in the installa- door unit first, then on the optional system control and... -
Page 39: Compressor Hysteresis
Start-up 7 Compressor hysteresis 7.14 Restarting the installation assistants The heat pump is switched on and off via the compressor You can restart the installation assistant at any time by call- hysteresis for heating mode and also for energy balancing. ing it up in the menu. -
Page 40: Display Of The Filling Pressure In The Heat Pump Circuit
8 Operation 7.19 Display of the filling pressure in the heat Remaining feed head of the product pump circuit The remaining feed head cannot be set directly. You can limit the remaining pump head in order to adjust the on-site The product has a pressure sensor in the heating circuit and pressure loss in the heating circuit. -
Page 41: Setting The Flow Temperature In Heating Mode (With No Control Connected)
Troubleshooting 10 Setting the flow temperature in heating mode 10.3 Checking fault codes (with no control connected) The display shows a fault code F.xxx. Press ( ). Fault codes have priority over all other displays. ◁ The display shows the flow temperature in heating Fault codes (→... -
Page 42: Preparing The Repair Work
11 Inspection and maintenance 11 Inspection and maintenance 10.8.1 Replace the safety cut-out 11.1 Inspection and maintenance information 11.1.1 Inspection The inspection is intended to determine the actual condition of a product and compare it with the target condition. This is done by measuring, checking and observing. -
Page 43: Observing Inspection And Maintenance Intervals
Draining 12 11.4 Observing inspection and maintenance 11.7 Checking and correcting the filling pressure intervals of the heating installation ▶ Use the "Inspection and maintenance work" table in the If the filling pressure falls below the minimum pressure, a appendix. maintenance message is shown on the display. -
Page 44: Draining The Heating Installation
13 Decommissioning 14 Recycling and disposal Use manual actuation to move the prioritising diverter valve to the "Heating circuit/domestic hot water cylinder" position. 14.1 Recycling and disposal Open the stopcock on the filling device. Disposing of the packaging Open the automatic air vent. ▶... -
Page 45: Appendix
Appendix Appendix Wiring diagram X311 X310 X300 X312 X302 X314 X313 X328 X301 Power supply PCB [X328] Data connection to the control PCB For single power supply: 230 V bridge between [X313] Power supply for the control PCB or the op- X311 and X310;... -
Page 46: B Control Pcb
Appendix Control PCB 9 18 X100 / X106 eBUS 9 19 Control PCB [X13] Multi-function output 1 [X51] Display edge connector [X14] Multi-function output: External back-up heater/external prioritising diverter valve [X29] eBUS bus connection for the installed system [X1] 230 V supply for control PCB control [X24] Coding resistor 3 Earth wire for the power supply PCB... -
Page 47: C Basic Connection Diagram For The Energy Supply Company Lockout, Shutdown Via Connection S21
Appendix Basic connection diagram for the energy supply company lockout, shutdown via connection S21 L1 L2 L3 N L2 L3 N X211 X210 X200 X206 X311 X310 X300 X106 L1 L2 L3 L2 L3 N X211 X210 X200 X206 X311 X310 X300 X106... -
Page 48: D Basic Connection Diagram For The Energy Supply Company Lockout, Shutdown Via Partition
Appendix Basic connection diagram for the energy supply company lockout, shutdown via partition L1 L2 L3 N L2 L3 N X211 X210 X200 X206 X311 X310 X300 X106 L1 L2 L3 L2 L3 N X211 X210 X200 X206 X311 X310 X300 X106 Meter/fuse box... -
Page 49: E Installer Level Overview
Appendix Installer level overview Setting level Values Unit Increment, select, ex- Factory setting Setting planation Min. Max. Installer level → Enter code 1 (competent person code 17) Installer level → Fault list → Current value F.XX – F.XX Installer level → Test menu → Statistics → Compressor hours Current value Compressor starts... - Page 50 Appendix Setting level Values Unit Increment, select, ex- Factory setting Setting planation Min. Max. T.0.63 High pressure 42.5 bar (abs) T.0.67 High-pressure switch On, Off ℃ T.0.85 Evaporation temperature ℃ T.0.86 Condensation temperature K T.0.87 Overheating target value K T.0.88 Overheating actual value to 20 K are normal op- erating parameters K...
- Page 51 Appendix Setting level Values Unit Increment, select, ex- Factory setting Setting planation Min. Max. Max. rem. feed head 1100 mbar 1100 DHW mode 0 = ECO 1 = Nor- 0, 1 Max. anti-cycl. time Reset anti-cycl. time → Anti-cycl. time after pow. supp. switch-on Im.
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Page 52: F Status Codes
Appendix Setting level Values Unit Increment, select, ex- Factory setting Setting planation Min. Max. Contact details Telephone num- Phone number 0–9 Empty End the installation assistant? Yes, back See the overview of fault codes: Fault lists are only available, and can only be deleted, if faults have occurred. Status codes Statuscode Meaning... - Page 53 Appendix Statuscode Meaning S.240 Compr. oil temp. too The compressor heating is switched on. The unit does not start up. low, environment too cold S.252 Fan unit 1: Fan blocked If the fan speed is 0 rpm, the heat pump is switched off for 15 minutes and then restarted. If the fan does not start up after four unsuccessful restarts, the heat pump is switched off and the fault mes- sage F.718 is displayed.
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Page 54: G Maintenance Messages
Appendix Statuscode Meaning S.305 Condensation temperat- The operating characteristics have been exited. The heat pump is restarted. ure too low S.306 Evaporation temperat- The operating characteristics have been exited. The heat pump is restarted. ure too high S.308 Condensation temperat- The operating characteristics have been exited. -
Page 55: H Comfort Protection Mode
Appendix Comfort protection mode Code Meaning Description Remedy Sensor fault: Temp. air inlet Still possible to operate with existing, Replace the air inlet sensor functional outdoor temperature sensor Fault codes In the event of faults which are caused by components in the refrigerant circuit, inform customer service. Remedy Code Meaning... - Page 56 Appendix Remedy Code Meaning Cause – – F.731 High-pressure switch open Refrigerant pressure too high. The Purging the building circuit integrated high-pressure switch – Too low a volume flow as a result in the outdoor unit has tripped at of closing single room controls in an 41.5 bar (g) or 42.5 bar (abs) underfloor heating system –...
- Page 57 Appendix Remedy Code Meaning Cause – – F.737 Condensation temperature too Temperature in the environment Reduce or stop the external heat high circuit (cooling mode) or building that is entering circuit (heating mode) too high for – Check the back-up heater (heats compressor operation up even though it is off in the –...
- Page 58 Appendix Remedy Code Meaning Cause – – F.785 Fan unit 2: Fan blocked There is no confirmation signal stat- Check the air route and, if required, ing that the fan is rotating remove any blockages – – F.788 Building circuit: Pump fault The electronics system of the high- Switch the heat pump off for at least efficiency pump has detected a...
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Page 59: J 5.4 Kw Back-Up Heater
Appendix Remedy Code Meaning Cause – F.1100 Immersion heater: Safety cut-out The safety cut-out on the electric back- Check the circulation in the building open up heater is open due to: circuit pump – If required, open the stopcocks – Insufficient volume flow or air in the –... -
Page 60: L 8.54 Kw Back-Up Heater At 400 V
Appendix Internal control of the output Power consumption Set value levels at 230 V 4.7 kW 5 kW 5.4 kW 6 kW 8.54 kW back-up heater at 400 V Applies for products with a heat output of 12 kW Internal control of the output Power consumption Set value levels at 400 V... -
Page 61: O Characteristic Values For The Internal Temperature Sensors, Hydraulic Circuit
Appendix Temperature (°C) Resistance (ohms) 8060 6535 5330 4372 3605 2989 2490 2084 1753 1481 1256 1070 Characteristic values for the internal temperature sensors, hydraulic circuit Sensors: TT620 TT650 Temperature (°C) Resistance (ohms) 33400 25902 20247 15950 12657 10115 8138 6589 5367 4398... -
Page 62: P Characteristic Values For The Vr10 Internal Temperature Sensors, Cylinder Temperature
Appendix Temperature (°C) Resistance (ohms) Characteristic values for the VR10 internal temperature sensors, cylinder temper- ature Temperature (°C) Resistance (ohms) 88130 64710 47770 35440 26460 19900 15090 11520 8870 6890 5390 4240 3375 2700 2172 1758 1432 1173 Installation and maintenance instructions Hydraulic station 0020257319_02... -
Page 63: Q Characteristic Values For The Vrc Dcf Outdoor Temperature Sensor
1128 1020 Technical data Note The following performance data is only applicable to new products with clean heat exchangers. Technical data – General VWL 57/5 IS VWL 77/5 IS VWL 127/5 IS Product dimensions, width 440 mm 440 mm 440 mm... - Page 64 Appendix Technical data – Heating circuit VWL 57/5 IS VWL 77/5 IS VWL 127/5 IS Material in the heating circuit Copper, copper-zinc Copper, copper-zinc Copper, copper-zinc alloy, stainless steel, alloy, stainless steel, alloy, stainless steel, ethylene propylene diene ethylene propylene diene...
- Page 65 Appendix VWL 57/5 IS VWL 77/5 IS VWL 127/5 IS Remaining feed head ΔT 5 K with 51.5 kPa 12 kW outdoor unit (515.0 mbar) Remaining feed head ΔT 8 K with 71 kPa 3 kW outdoor unit (710 mbar) Remaining feed head ΔT 8 K with...
- Page 66 Appendix VWL 57/5 IS VWL 77/5 IS VWL 127/5 IS Length, refrigerant pipe, minimum Connection technology, refriger- Flare connection Flare connection Flare connection ant pipe Outer diameter, hot gas pipe 1/2 " (12.7 mm) 5/8 " (15.875 mm) 5/8 " (15.875 mm) Outer diameter, liquid pipe 1/4 "...
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Page 67: S Commissioning Checklist
Appendix Commissioning Checklist Applicability: Great Britain 0020257319_02 Hydraulic station Installation and maintenance instructions... - Page 68 Appendix AIR TO WATER HEAT PUMP COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the heat pump and associated equipment as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.
- Page 69 Appendix SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. SERVICE 01 SERVICE 02 Date:...
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Page 70: Index
Index Index Installation clearances............24 Installer level, calling up ............37 Intended use................ 16 Actuator test ................ 37 Language ................36 Back-up heater ..............30 Live Monitor................. 39 Basic diagram..............16 Low-water pressure protection ..........19 Calling up, code layer............37 Maintenance................ - Page 71 Index Voltage ................16 Weight ................. 24 Wiring .................. 32 0020257319_02 Hydraulic station Installation and maintenance instructions...
- Page 72 0020257319_02 0020257319_02 12.11.2018 Supplier Vaillant Ltd. Nottingham Road 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.