Installation instructions For the competent person Installation instructions aroTHERM VWL 55/2 A 230 V; VWL 85/2 A 230 V; VWL 115/2 A 230 V; VWL 155/2 A 230 V UK Publisher/manufacturer Vaillant GmbH Berghauser Str. 40 D-42859 Remscheid Telefon 021 91 18‑0 Telefax 021 91 18‑28 10 info@vaillant.de www.vaillant.
Contents Contents 7.4 Yearly maintenance ............................................. 25 7.5 Cleaning the product............................................ 26 1 Safety .................................................................... 3 7.6 Draining the product ............................................ 26 1.1 Action-related warnings ......................................... 3 7.7 Checking the product's status codes ................... 27 1.2 Required personnel qualifications ..........
Safety 1 1 1.1 Safety Action-related warnings Classification of action-related warnings The action-related warnings are classified in accordance with the severity of the possible danger using the following warning signs and signal words: Warning symbols and signal words Danger! Imminent danger to life or risk of severe personal injury Danger! Risk of death from electric shock Warning. Risk of minor personal injury Caution. Risk of material or environmental damage 1.
1 Safety 1.3.7 Risk of material damage caused by using an unsuitable tool 1.4 ▶ Use the correct tool to tighten or loosen screw connections. As part of the installation, commissioning and operation of the heat pump and the DHW storage you must take into account the current versions of the following regulations or standards, along with any local directives or guidelines that may apply. 1.3.8 Avoid environmental damage caused by escaping coolant The heat pump contains R410A coolant.
Safety 1 1.6 Approvals This product has been fully tested in accordance with: – BS EN 14511:2011 1.7 1.8.2 Standards On installing and commissioning the appliance you must adhere to the technical rules, standards and provisions in eff ect at the time. Local regulations 1.8.3 Reminder of existing regulatory acts Benchmark places responsibilities on both manufacturers and installers. The purpose is – EC regulation No.
1 Safety 1.10 Intended use There is a risk of injury or death to the user or others, or of damage to the product and other property in the event of improper use or use for which it is not intended. The heat pump is an air/water monoblock system and uses the energy from the outside air to supply heat to the building. The heat pumps are intended exclusively for domestic use as heat generators for closed heating and hot water central heating systems and for hot water generation.
Notes on the documentation 2 2 2.1 ▶ 2.2 ▶ 2.3 Notes on the documentation ing point in the event of a power cut, which poses a risk of frost to the heating installation. Observing other applicable documents Note Operating the heat pump outside the application limits results in the heat pump being switched off by the internal control and safety devices. You must observe all the operating and installation instructions included with the system components.
3 System overview 3 Fan 5 Electronic expansion valve 4 Compressor 6 Plate heat exchanger 3.4 System diagram (VWL 55/2 A 230 V) 23 20 22 3.3.3 Application limits 5 13 8 9 2 B Operation of the pump outside the application limits results in the heat pump being switched off by the internal control and safety devices. 21 15 A 14 6 3.3.3.
Overview of the equipment 4 3 4 5 6 7 8 Ribbed pipe heat exchanger Temperature sensor of the ribbed pipe heat exchanger 4-way valve 15 High-pressure sensor in the coolant circuit 16 Compressor outlet temperature sensor 17 Rotary piston compressor Information on the identification plate Meaning PSH min PSH max Minimum and maximum operating pressure in the heating circuit 18 Filter COP (Ax/Wxx) Return heating circuit temperature sensor High-efficiency pump with flow sensor Purging valve 19 Liquid s
5 Assembly and installation ▶ ▶ ▶ When transporting the product, two people should lift it. Observe the product weight stated in the technical data. When transporting heavy loads, observe the applicable directives and regulations. Caution. Risk of material damage due to incorrect transportation. Regardless of the mode of transport, the heat pump must never be tilted by more than 45°. Otherwise, this may lead to malfunctions in the coolant circuit during subsequent operation.
Assembly and installation 5 VWL 155/2 A 230V VWL 85/2 A 230V VWL 115/2 A 230V 3 46 3 46 110 3 110 3 138 0* 97 5* 2 16 2 16 8 77 8 77 2 16 2 16 7 43 11 11 437 * Size increases by 45 mm when using the vibration dampers supplied. 0020147164_04 aroTHERM Installation instructions 7 43 437 * Size increases by 45 mm when using the vibration dampers supplied.
5 Assembly and installation 5.1.2.2 Installation clearance 5.1.2.3 Selecting the installation site B A C E D A 0.5 m ▶ ▶ ▶ Clearance For heating mode A > 250 mm B > 1000 mm C > 120 mm* D > 600 mm E > 300 mm *Caution: If the minimum clearances are not maintained, the output of the product may be affected. ▶ ▶ ▶ 12 To guarantee sufficient air flow and to facilitate maintenance work, observe the minimum clearances that are specified above.
Assembly and installation 5 5.1.2.4 Installing the heat pump dB(A) 1. 2. 3. 4. Note the safety information in this manual and in the operating instructions before installing the product. Install the product on steel beams, concrete blocks or using a wall holder (accessory). Ensure that no water collects under the product. In order to avoid ice formation, ensure that the ground in front of the product can absorb water well. 5.1.2.
5 Assembly and installation 5.2 Carrying out the installation 5.2.1 2. Removing the side casing – Maximum length: ≤ 8 mm Align the product horizontally so that condensate can flow. Note The product must be installed with the vibration-isolating feet supplied. The product is lifted by the vibration-isolating feet, which simplifies the condensate-discharge process and reduces vibrations. 3. Screw in the vibration-damping feet using the concrete foundation.
Assembly and installation 5 1. 2. 3. 4. Insulate the lines (including those running below ground) with UV-resistant and high-temperature-resistant insulation between the product and the heating installation. In order to avoid transferring vibrations to the surrounding buildings, use flexible connection pipes on the product that have a length of at least 0.75 m. When the product is not installed at the highest point in the heating circuit, install additional purging valves in suitable places.
5 Assembly and installation 7. In order to guarantee the hot water generation using the heat pump, install a cylinder temperature sensor and a 3-way valve. 5.3.6 Connecting the swimming pool (optional) Danger! Risk of material damage due to a direct connection to a swimming pool. A 365 If the product is directly connected to a swimming pool, damage may be caused by corrosion. ▶ ▶ B 2 Do not connect the heat pump heating circuit directly to a swimming pool.
Assembly and installation 5 7. Make sure that the condensate drain pipe ends in a gravel bed. 5.4.2 Standard tariff 5.4.2.1 230 V connection Note The condensate drain pipe must not be longer than 365 mm, otherwise it may freeze over. 2 X7 FLOOR H X4 EBUS 8. 2 1 X9 Route the condensate drain pipework with a downward gradient. 5.4 Carrying out the electrical installation 1 2 1 X2 1 30 mm max. 1 Connecting wires 2 Mains connection terminal in the product Insulation ▶ 1. 2.
5 Assembly and installation 5.4.3 Laying the 24 V cabling ØA 3 230 V~ PE N L 2 1 230 V~ MA1 MA2 UV1 PE N L PE N L PE N L PE N Auf Zu ZH PE N 1 2 Bus + - VF1 2 1 SP1 2 1 1 2 1. X7 FLOOR H X4 EBUS 4 5 6 7 8 9 10 eBUS connection in the heat pump (observe the polarity) Limit thermostat connection (underfloor protective circuit) 11 12 13 14 15 ØA 16 1 3 eBUS connection in the VWZ AI heat pump control module or in the VWZ MEH 61 2 2 Feed the cable through the cable duct.
Assembly and installation 5 5.5 Connection diagrams 5.5.
5 Assembly and installation 9 Air inlet temperature sensor 18 Drain pan electrical heating rod 10 Electronic expansion valve 19 LED status display 11 Main PCB 20 Heating circuit high-efficiency pump with flow sensor 12 Coding resistance 21 4-way valve 13 Diagnosis software connection 22 PCB installation 14 Fan 1 23 Rotary piston compressor 15 Fan 2 (for VWL 155/2 only) 24 Inverter box 16 Fan PCB 25 Temperature sensor for ribbed pipe heat exchanger 17 Crankcase heating 20 I
Start-up 6 6 Start-up 6.1 1. 2. 3. 4. 5. 6. 7. Run the start-up Before starting up the product, read through the operating instructions. Check that the electrical partition is installed. Check that the hydraulic and electric connections are correctly designed. Check that a dirt filter is installed in the heat pump return. Check whether an expansion relief valve, an expansion vessel and a pressure gauge are installed. Check the leak-tightness of the connections. Open all the heating circuit valves. 6.
6 Start-up ▶ Increase the operating pressure in the heat pump heating circuit. – Operating pressure: 0.15 … 0.2 MPa (1.50 … 2.0 bar) Note The pressure level may fall in the first month following start-up. It may also vary depending on the outside temperature. – – Sentinel X 100 Sentinel X 200 Additives for frost protection intended to remain permanently in the system – – Fernox HP 15 or HP15c Sentinel X 500 ▶ Inform the operator about the measures required if you have used these additives.
Start-up 6 Heating water characteristics Unit Oxygen mg/l 6.8 Low-salt < 0.1 Saline 6.11 Operating noises < 0.02 1 Filling the heating installation "Hhmmm..." (*) Caution. Risk of material damage due to heating water that is extremely calciferous or corrosive or contaminated by chemicals. 2 "Ttsheeh...!" Unsuitable tap water damages the seals and diaphragms, blocks components in the product and heating installation through which the water flows and causes noise.
6 Start-up – Operating pressure: 0.15 … 0.2 MPa (1.50 … 2.0 bar) Open the service valves on the back of the product. Remove the hose and the mixing container. ▶ ▶ VWL 115/2 A 230 V Flow rate increase (l/h) Water 6.12.1.
Maintenance 7 6.12.3.1 Heat pump setting parameters 7.2 Preparing for maintenance To individually set the heat pump, you can adjust certain parameters in the Configuration menu. 7.2.1 Procuring spare parts Menu → Installer level Configuration Additional setting data is listed in the appendix. Heat pump setting parameters (→ Page 44) 6.13 The original components of the unit were also certified as part of the CE declaration of conformity.
7 Maintenance 7.5 Cleaning the product 7.5.1 Cleaning the front Warning. Risk of injury due to sharp-edged casing. 1 The product's casing sections have sharp edges. ▶ Wear gloves when installing or dismantling the product's casing sections. 3 1 6. 3. 2 5 5. 4 3 2 1. 2. 3. 4. 5. Remove the side casing. (→ Page 14) Remove both screws (1). Lift off the cover. Remove the four screws (2) and remove the mesh (3). Clean the product. 7.6 Draining the product Conditions: SW10 open-end spanner ▶ 1.
Troubleshooting 8 Note If necessary, you can drain the heating installation using this drain cock by opening the stop valves on the back of the heat pump. 7.7 Checking the product's status codes Menu → Live Monitor You can check the product's status codes at any time to see which operating condition the heat pump is in. You can read these codes on the display of the heat pump control module or hydraulic station VWZ MEH 61. 7.
9 Decommissioning 9 Decommissioning 9.1 Temporary decommissioning 1. 2. Switch the product off. Disconnect the product from the power supply. 9.2 Permanently decommissioning 1. 2. 3. 4. Switch the product off. Disconnect the product from the power supply. Drain the product. (→ Page 26) Dispose of or recycle the product and its components. 10 Vaillant customer service 10.
Appendix Appendix A Overview of accessories System diagrams 8E VWZ MEH 60 8F 9B* 9A* 10A X 10B 10C X 11A* X 12A** 12B** X VWZ MEH 61 Auxiliary heat generator Heat generator X X X Heat generator without eBUS/external heat generator Frost protection Without heat exchanger X X X X X VWZ MWT 150 X Without decoupling module Decoupling/cylinder VWZ MPS 40 X X X X Solar-powered domestic hot water cylinder 1-zone/heating circuit 2-zone/heating circuit X X X X X X X X X X X
Appendix B B.
Appendix 38 Diverter valve 91 VWZ AI VWL X/2 heat pump control module 42a Expansion relief valve 93 VWZ MPS 40 compact buffer cylinder 42b Diaphragm expansion tank KW Cold water 43 Safety group – drinking water connection VF1 Flow temperature sensor 1 50 Differential-pressure bypass valve 0020147164_04 aroTHERM Installation instructions 31
Appendix B.
Appendix 39 Thermostat mixing valve 91 VWZ AI VWL X/2 auxiliary module 42a Expansion relief valve 94 VWZ MEH 60 auxiliary heating module 42b Diaphragm expansion tank HK1-P Heating pump 1 42c Diaphragm expansion tank – drinking water HK2-P Heating pump 2 43 Safety group – drinking water connection KOL1 48 Pressure gauge 50 Differential-pressure bypass valve 52 Individual room control valve KOL1- Solar pump for collector field 1 P KW Cold water 58 Fill and drain valve 63 VFK solar f
Appendix B.
Appendix 42a Expansion relief valve HK-P 42b Diaphragm expansion tank HK1-P Heating pump 1 42c Diaphragm expansion tank – drinking water HK2-P Heating pump 2 43 Safety group – drinking water connection KW Cold water 48 Pressure gauge MA Multi-relay output 50 Differential-pressure bypass valve UV1 Diverter valve 1 52 Individual room control valve SP1 Cylinder temperature sensor 65 Collecting container VF1 Flow temperature sensor 1 91 VWZ AI VWL X/2 auxiliary module VF2 Flow te
Appendix B.
Appendix 43 Safety group – drinking water connection 94 VWZ MEH 60 auxiliary heating module 48 Pressure gauge KW Cold water 50 Differential-pressure bypass valve UV1 Diverter valve 1 52 Individual room control valve VF1 Flow temperature sensor 1 91 VWZ AI VWL X/2 auxiliary module C Wiring diagram 8 E L N 230 V~ X31 Heat generator 16 Outside temperature sensor/DCF receiver 3 Heat pump 91 VWZ AI VWL X/2 auxiliary module 13e System controller VF1 Flow temperature sensor 1 13h
Appendix KOL1 SP2 SP1 Ertrag KOL1-P 230 V~ SP2 SP1 2 1 KOL1 2 1 BUS + VF2 Ertrag 2 1 LEG-P PE N L KOL1-P PE N L MA PE N L 230 V~ PE N L 2 1 230 V~ TD1 2 1 13g VR 68 TD2 2 1 3,3 V / 5 V / 24 V Wiring diagram 8 F 2 1 C.
0020147164_04 aroTHERM Installation instructions 1 2 1 2 + VF1 BUS X7 X4 MA1 3 Heat pump 13b Mixer module 13a Remote control unit 13e System controller VWL x5/2 A 400 VX2 400 V~ 2 400 V~ 19 19 nc 28 (HK1-P) 28 (HK2-P) ZP 230 V~ PE N L 230 V~ LP/ZP PE N L nc VF2 Circulation pump L1 L2 L3 N 230 V~ 1 Flow temperature sensor 1 ZP X2 HK-P 92 VWZ MWT 150 N HK1-P PE N L 230 V~ HK2 PE N Auf Zu 13b VR 61 VF1 L N 1 2 X9 + 230 V~ UV1 PE N L1 L2 L3 VRC 470 13e SP2
Appendix 16 Outside temperature sensor/DCF receiver HK2-P Heating pump 2 19 Maximum thermostat UV1 Diverter valve 1 91 VWZ AI VWL X/2 auxiliary module SP1 Cylinder temperature sensor 92 VWZ MWT 151 heat exchanger module VF1 Flow temperature sensor 1 94 VWZ MEH 60 auxiliary heating module VF2 Flow temperature sensor 2 HK-P Heating pump 1 ZP Circulation pump HK1-P Heating pump 1 Wiring diagram 12 A 28 (MA1) 400 V~ 13a VR 81 13e VRC 470 C.
Appendix D D.
Appendix D.
Appendix D.
Appendix D.
Appendix Parameter Explanation Default setting Adjustment range Language Select the required language here. 02 English 01 02 03 04 05 07 08 09 11 15 16 Deutsch English Français Italiano Dansk Castellano Türkçe Magyar Українська Svenska Norsk 18 19 20 22 Čeština Hrvatski Slovenčina Slovenščina Contact details As a competent person, you can enter your telephone number here. The end customer can read this number in the menu → Information. Max.
Appendix Plate heat exchanger material Pump casing material Pollution rating Electric connection Fuse type VWL 55/2 A 230 V VWL 85/2 A 230 V VWL 115/2 A 230 V VWL 155/2 A 230 V AISI 304 stainless steel AISI 304 stainless steel AISI 304 stainless steel AISI 304 stainless steel Painted cast iron Painted cast iron Painted cast iron Painted cast iron 2 2 2 2 230 V/50 Hz 230 V/50 Hz 230 V/50 Hz 230 V/50 Hz T4A T4A T4A T4A HRC 20 A 550 V HRC 20 A 550 V HRC 32 A 550 V HRC 32 A 550 V L
Appendix Nominal volume flow rate, max. volume flow rate Hydraulic pressure difference VWL 55/2 A 230 V VWL 85/2 A 230 V VWL 115/2 A 230 V VWL 155/2 A 230 V 860 l/h 1,400 l/h 1,900 l/h 2,590 l/h 640 mbar 450 mbar 300 mbar 370 mbar VWL 85/2 A 230 V VWL 115/2 A 230 V VWL 155/2 A 230 V Technical data – Coolant circuit VWL 55/2 A 230 V Coolant type R410A R410A R410A R410A Coolant contents 1.80 kg 1.95 kg 3.53 kg 4.40 kg 4.15 MPa (41.50 bar) 4.15 MPa (41.50 bar) 4.15 MPa (41.
Appendix G Overview of fault codes Code Meaning F.022 Water pressure too low Insufficient water in the heating system F.037 Fan fault – – – Obstruction in the product's air guiding Fan motor not connected or faulty The connection between the main PCB and the fan PCB is damaged or broken. F.042 Fault: Coding resistance – – – The product's coding resistance is missing or is faulty Coding resistance value outside the permissible range X25 plug not connected or was connected incorrectly F.
Appendix Code Meaning Cause F.537 High-pressure switch open – – – – – – – – Coolant volume too high or too low Vacuum insufficient (10 mbar) Incondensable particle in the coolant circuit Pressure switch or electrical connection faulty Premature expansion in the liquid area of the coolant circuit (loss of charge) Flow quantity too high (see defined maximum flow rate) Flow rate monitor faulty Insufficient heat transfer in the heat exchanger F.
Appendix Code Meaning Cause Connection fault: Heat pump The eBUS connection between the heat pump and the VWZ AI heat pump control module is faulty. 1) Sensor on the evaporator 2) Sensor on the condenser For further technical information, please call 0844 6933 133.
Index Index A Actuator test ........................................................................ 27 B Back Cleaning......................................................................... 26 C Cable duct ........................................................................... 18 CE label ................................................................................. 4 Connection diagram ............................................................ 19 D Documents ....................................
0020147164_04 05.05.2014 Vaillant Ltd Nottingham Road Belper Derbyshire DE56 1JT Telephone 44 84 56 02 29 22 Vaillant Service Solutions 44 807 06 06 07 77 Spares Technical Enquiries 44 17 73 59 66 15 info@vaillant.co.uk technicalspares@groupservice.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.
