Vaillant aroTHERM VWL ../2 A 230 V series Installation Instructions Manual

3 System overview8 Installation instructions aroTHERM 0020147164_073 Fan4 Compressor5 Electronic expansionvalve6 Plate heat exchanger3.3.3 Application limitsOperation of the pump outside the application limits results inthe heat pump being switched off by the internal control andsafety devices.3.3.3.1 Application limits in heating mode (VWL55/2 A 230 V)605070403020100 -20 -10 0 10 20 30 40 50[-15;22][-15;45][46;22][46;58][35;60][28;60][2;60][-10;55]1 2[28;22] [35;22]AB1 Heating mode applica-tion limits2 Hot water generationapplication limitsA Water temperatureB Air temperature3.3.3.2 Application limits in heating mode (VWL85/2 A 230 V, VWL 115/2 A 230 V, VWL 155/2A 230 V)605070403020100 -20 -10 0 10 20 30 40 50[-20;22][-20;43][46;22][46;58][35;63][28;63][2;63][-10;55]1 2[28;22] [35;22]AB1 Heating mode applica-tion limits2 Hot water generationapplication limitsA Water temperatureB Air temperature3.4 System diagram (VWL 55/2 A 230 V)e1 3 121617192415211411423 20222 5 13 8 96710AB181 Fan2 Air inlet temperaturesensor3 Ribbed pipe heat ex-changer4 Temperature sensorof the ribbed pipe heatexchanger5 4-way valve6 Return heating circuittemperature sensor7 High-efficiency pumpwith flow sensor8 Purging valve9 Flow heating circuittemperature sensor10 Drain valve11 Plate heat exchanger12 Temperature sensorafter the plate heatexchanger13 Service valve for thehigh-pressure range ofthe coolant circuit14 High-pressure pressureswitch in the coolantcircuit15 High-pressure sensor inthe coolant circuit16 Compressor outlettemperature sensor17 Rotary piston com-pressor18 Filter19 Liquid separator20 Electronic expansionvalve21 Compressor inlet tem-perature sensor22 Service valve for thelow-pressure range ofthe coolant circuit23 Filter24 Fluid collectorA Heating returnB Heating flow3.5 System diagram (VWL 85/2 A 230 V, VWL115/2 A 230 V, VWL 155/2 A 230 V)e1 3 12161719252315211411424 20222 5 13 8 96710AB181 Fan 2 Air inlet temperaturesensor