Characteristics
- Factory pre-assembled compact loading group, which ensures trouble-free and quick installation to heat storage and heat source systems
- The loading group provides a rapid rise in heat source temperature and storage loading starts automatically as soon as the operating temperature is reached, thus improving boiler efficiency and service life
- At the initial stage of loading, rapid storage tank temperature stratification makes it possible to obtain heat energy very quickly after the start of the combustion
- The return temperature can be adjusted using exchange thermostats
- The charging group is easy to maintain and all wearing parts are easily replaced without the need to drain the water system
Properties
- Loading pump: Grundfos UPM3 AUTO L -50 (230 VAC 50/60 Hz 2-33 W)
- Maximum boiler power: 45 kW (maximum flow ~2500 l/h)
- Maximum operating temperature: 110 °C
- Maximum operating pressure: 0,6 MPa (6 bar)
- Return temperature: Adjustable by changing the thermostat (45, 49, 55, 61, 66, 72 and 80 °C)
- Connection: R 32 or R 25 or CU28mm (Integrated closing function)
- Material: brass and cast iron
- Backflow preventer integrated in the loading valve
- Dimensions (width x height x depth): 385 x 175 x 165 mm
- Weight: 3,7 kg
Delivery contents:
Vexve ALV 3-way thermostatic valve
- DN 40 kvs.12
Union ball valves 3 pieces
- 1 ½” x 1 ¼” or 1 ½” x 1” or 1 ½” x CU28mm
Vexve Connector
- 1 ½” x 1 ½”
Grundfos-loading pump
- UPM3 AUTO L -50
Exchange thermostat
- Temperature depending on the model
This device meets the following environmental requirements and standards:
- Operating temperature 0 … +40 °C
- Storage temperature −20 … +60 °C
- Shipping temperature −20 … +60 °C
- Humidity 0–100 % RH, non-condensing conditions
- RoHs 2002/95/EC
- CE-mark 93/68/EEC
- EMC-directive 2004/108/EEC