Vaillant aroSTOR VWL B 200/5 UK Installation And Maintenance Instructions Manual

Also see for aroSTOR VWL B 200/5 UK: Operating instructions Installation and maintenance instructions

8 Adapting the unit to the installation18 Installation and maintenance instructions aroSTOR 0020285063_00NoteWhen photovoltaic mode has the higher prior-ity, domestic hot water is also heated duringperiods that have not been set (e.g. holidaymode and outside of programmed time peri-ods).If you only want to heat the domestic hot wa-ter during the permitted time period, set thepriority to no.▶ Press the rotary knob to confirm the selection.◁ The immersion heater is supplied with electricity inorder to use the energy from the photovoltaic install-ation.◁ When the fan mode is activated (FAN MODE), op-tion 3 can no longer be selected.◁ The SHED DING function is not available.▶ Press the menu button to return to the original display.8.3 Reading the input data1. If you want to read the product's input data, you mustselect this menu. DI SPLAY → INST.MENU.2. Press the rotary knob in the DI SPLAY menu.◁ WATE R = Domestic hot water temperature in thecentral section of the domestic hot water cylinder◁ AIR INLET = Air temperature at the air intake◁ T_EV APOR = Temperature of the evaporator◁ If PV MODE is deactivated:– SHED DING : Connection contact no. 1/low-tariffcontact input (0: Contact opened; 1: Contactclosed)– FAN CONTR. : Connection contact no. 2/hygro-stat input (0: Contact opened; 1: Contact closed)◁ If PV MODE is activated:– PV ECO : Connection contact no. 1 input (0:Contact opened; 1: Contact closed)– PV MAX : Connection contact no. 2 input (0:Contact opened; 1: Contact closed)3. Press the menu button to return to the original display.8.4 Setting the anti-legionella functionThe anti-legionella function heats the water in the productto a temperature between 60 °C and 70 °C. 60 °C is set asthe standard value at the factory. It is possible to set a targettemperature of up to 70 °C. If the target domestic hot watertemperature is already set to 60 °C or above, the anti-legion-ella function is not carried out. If an anti-legionella cycle isinterrupted by a time period in which heating mode is pre-vented (high tariff or time programming), the anti-legionellafunction will be restarted in the next operating time.▶ Turn the rotary knob to set the time interval (in days) forthe anti-legionella function. SET TINGS → ANTI -BACT.→ INST.MENU .▶ Press the rotary knob.▶ Select the time interval between two anti-legionella func-tion charges.▶ Press the rotary knob to confirm the selection.▶ Press the menu button to return to the original display.8.5 Selecting the load relief stageCondition: Cable for low-tariff/high-tariff load relief connected▶ Select the components that can be used during high-tariff periods.– Heat pump only– Heat pump and immersion heater▶ Turn the rotary knob to set the mode. INST.MENU →SET TINGS → SHED DING.◁ 0 = No components may operate in the high-tariffperiods◁ 1 = Only the heat pump may operate in the high-tariffperiods◁ 2 = The heat pump and immersion heater may oper-ate in the high-tariff periodsNoteWhen using a low-tariff connection,you should not set any additional time-programming.▶ Press the menu button to return to the original display.▶ If you are using a high-tariff connection, inform the enduser of the optimal energy use.8.6 Setting the minimum temperatureYou can use the minimum temperature function to preventthe domestic hot water temperature falling below 38 °C. Indoing so, the back-up heater (immersion heater) supportsthe heat pump until a domestic hot water temperature of43 °C has been reached.Depending on the parameter selection when setting the loadrelief stage, the minimum temperature function may not beavailable in high-tariff periods under certain circumstances.INST.MENU → SET TINGS → T°C MINI▶ Press the rotary knob.▶ Turn the rotary knob and select a hot water temperatureof 43 °C.▶ Press the rotary knob to confirm the selection.▶ Press the menu button to return to the original display.8.7 Setting ventilator mode▶ Turn the rotary knob to set the mode INST.MENU SETTINGS FAN MODE.◁ 1 = Fan operates only when the heat pump is run-ning. The fan speed does not automatically adjust tothe heat pump's requirements.◁ 2 = Fan operates only when the heat pump is run-ning. The fan runs at maximum speed.◁ 3 = Fan operates only if the heat pump is running or ifthe external control system permits this (hygrostat)