Vaillant VWL 35/5 AS 230V S2 Operating Instructions Manual

Also see for VWL 105/5 AS S2: Operating, installation and maintenance instructions Operating instructions Operating instructions

Contents

Electrical installation 60020257297_02 aroTHERM Installation and maintenance instructions 673. Check that no refrigerant is escaping. Check in particu-lar all of the screwed connections and valves.4. Screw on both covering caps. Tighten the coveringcaps.5.10 Completing work on the refrigerant circuit1. Disconnect the refrigerant fitting from the maintenanceconnection.2. Screw the covering cap onto the maintenance connec-tion.3. Attach thermal insulation to the refrigerant connectionsfor the outdoor unit.4. Attach thermal insulation to the refrigerant connectionsfor the indoor unit.5. Fill out the sticker for the refrigerant volumes. This islocated on the left beside the service valves. Note downthe refrigerant volume added at the factory (see dataplate), the additional refrigerant volume added and thetotal refrigerant volume.6. Enter the data in the service book.7. Install the cover for the service valves.6 Electrical installation6.1 Preparing the electrical installationDanger!Risk of death from electric shock as a res-ult of an improper electrical connection!An improper electrical connection may neg-atively affect the operational safety of theproduct and result in material damage or per-sonal injury.▶ Only carry out the electrical installation ifyou are a trained competent person andare qualified for this work.1. Observe the technical connection conditions for con-necting to the energy supply company's low-voltagenetwork.2. Determine whether the energy supply company lockoutfunction has been provided for the product, and howthe power supply for the product should be designed,depending on the type of shutdown.3. Use the data plate to determine whether the productrequires a 1~/230V or a 3~/400V electrical connection.4. Use the data plate to determine the product's rated cur-rent. Derive the suitable cable cross-sections for theelectrical wires from this.5. Prepare the routing of the electrical wires from thebuilding and through the wall duct to the product.6.2 Requirements for electrical components▶ Flexible hose lines that are suitable for routing outdoorsmust be used fr the power supply. The specification mustcomply with the standard 60245 IEC 57 with the abbrevi-ation H05RN-F as a minimum.▶ The electrical partitions (circuit breakers) must have acontact gap of at least 3 mm.▶ For the electrical fuse protection, slow-blow fuses (circuitbreakers) with C characteristics must be used. With athree-phase power supply, the fuses must be three-poleswitching.▶ To protect people, type B universal-current-sensitive re-sidual-current circuit breakers must be used if these arestipulated for the installation site.6.3 Installing components for the energy supplycompany lockout functionIf the energy supply company lockout function has beenprovided, the heat generation from the heat pump can beswitched off intermittently by the energy supply company.The unit can then be shut down in two ways, depending onthe specifications from the energy supply company:– The signal for the shutdown is then fed to connection S21for the indoor unit (electronically controlled shutdown).– The signal for the shutdown is fed to a partition that isinstalled on-site in the meter box (hard shutdown).Condition: Energy supply company lockout function provided▶ Install and wire additional components in the building'smeter/fuse box.▶ To do this, follow the installation instructions for the in-door unit.6.4 Opening the electronics box1. Undo the two screws on the lower edge.2. Release the cover by lifting it out of the stop.6.5 Stripping the electrical wire1. If required, shorten the electrical wire.30 mm≤2. Strip the electrical wire as shown in the figure. In doingso, ensure that the insulation on the individual conduct-ors is not damaged.6.6 Establishing the power supply, 1~/230VCaution.Risk of material damage due to high con-nected voltage.At mains voltages greater than 253 V, elec-tronic components may be damaged.▶ Ensure that the nominal voltage of the 1-phase mains is 230 V (+10%/-15%).▶ Determine the type of connection: