Grundfos UPS3 15-50/65 (130) Domestic Heating Circulator.
High efficiency canned-rotor circulator, designed for circulating liquids in domestic heating systems. Is suitable as stand-alone or integrated circulator pump in existing systems as replacement or in new heating systems.
Three constant curves/constant speed curves.
Two proportional-pressure curves.
Two constant-pressure curves.
Low EEI (Energy Efficiency Index).
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 setting
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.
Order before 2.30pm for next working day delivery (orders placed after 2.30pm will be processed the following working day). Please note if you have ordered an item which is listed as next day delivery with an item which has a longer lead time they will be sent together at the longer lead time.