The new UPS3 is a compact, high efficiency replacement for Grundfos UPS and UPS2 15-50/60 circulator pumps and many internal boiler pumps. Suitable for domestic heating systems with boilers up to 30kW, just one model of UPS3 can be used to replace all previous 4m, 5m and 6m head versions of UPS and UPS2 pumps. Using the GO Replace app, suitability for replacing a wide range of internal boiler pumps can also be confirmed. Energy efficient replacement circulator pump that exceeds the EuP EEI rating. Ceramic bearings and shaft prevent magnetite build up and extend life. 3 fixed speed modes plus underfloor (constant pressure) and proportional pressure modes – enable selection of the setting that best fits the system demands. Innovative, easy to fit installer plug. Fault code indications and dry access port enable fast unblocking. Increased head – now up to 6.5m. Compatible with Grundfos GO replace. No need to disconnect pipework if just replacing the pump head (backplate is compatible) - minimises access issues and leakage risks. Suitable for compact spaces. 5 year warranty. The Grundfos UPS3 15-50/65/130 Domestic Heating pump is a high efficiency canned-rotor circulator, designed for circulating liquids in domestic heating systems. It is suitable as a stand-alone or integrated circulator pump in existing systems as a replacement or in new heating systems. Features: Three constant curves/constant speed curves. Two proportional-pressure curves. Two constant-pressure curves. Low EEI (Energy Efficiency Index). Deblocking device. Alarm and warning indication. Low noise level. Very simple installation. Replaces UPS2 and Alpha2. The pump features three control modes: Constant pressure control with two settings. Proportional pressure control with two settings. Constant curve mode with three settings. Additionally, easy and user-friendly one-button interface makes replacement and settings simple and fast. Furthermore, the speed can be controlled by a low-voltage PWM (Pulse Width Modulation) profile A - Heating. LEDs indicate the actual operating status as well as warnings and alarms. The design of the pump and chosen materials contribute to long life. The pump is self-venting through the system, which contributes to easy commissioning. The compact design, featuring a pump head with an integrated control box, fits into most common installations, as well as boilers, due to the ambient temperature range. Pump and motor form an integral unit without a shaft seal. The bearings are lubricated by the pumped liquid. These constructional features ensure maintenance-free operation. Servicing screw accessible from the front allows for easy access to the pump shaft if necessary to deblock the pump once installed. The pump housing is made of cast iron. The pump housing is electrocoated to improve corrosion resistance. The motor is a synchronous permanent-magnet motor characterised by high efficiency. The pump speed is controlled by an integrated frequency converter incorporated in the control box.