Grundfos Pumpar - sita 4

The high-efficiency Grundfos COMFORT PM pump for domestic hot-water recirculation in single- and two-family houses are suitable for lead-free drinking water and powered by a high-efficiency, single-phase, permanent-magnet motor. The integrated digital timer has been developed for domestic hot-water recirculation in systems with either hot-water tanks or plate heat exchangers for hot-water production. The timer allows you to customise the pump's operating periods, ensuring optimal comfort while lowering energy costs. Features and benefits:• Digital timer function for customisation of the pump's operating periods.• Continuous operation can be set for commissioning of the pump or 24 hours instant hot shower and tap water.• Quick and simple electrical installation due to 1.5 m cable including power plug.• Dry-running protection protects the pump against dry running during startup and normal operation.• Easy-to-clean and robust, lime-resistant spheric rotor.• Noiseless operation due to liquid-lubricated bearing.• No leakage risk due to a static seal.• Easy maintenance and cleaning through the easy-to-separate pump head.• One pump head for service in the van, fitting almost all competitor pump housings too.• Corrosion resistant lead-free brass pump housing.• No additional motor protection necessary due to integrated motor electronics.• BXDT variants contain fittings with integrated non-return valve and isolating valve.

ALPHA2 is able to withstand the tough conditions in a heating system, and with four newly added features, it just got even tougher:Robust start-up:Shakes free any impurities before the pump starts at the beginning of the heating season.Summer mode:Adjustment of the pump’s performance in the summer to the warmer temperature outside – giving customers extra energy efficiency.Magnetite resistance:Ensures that no small pieces of metal get stuck in the pump’s vital parts when they are magnetised.Dry-running protection:Makes sure the pump never runs without liquid in the system - add to that unrivalled energy efficiency, easy installation and the fact that ALPHA2 covers both your heating demands and up to 90 % of your air-conditioning and cooling demands.The GRUNDFOS ALPHA2 is suitable for:• Systems with constant or varying flow• One pipe systems• Two pipe systems• Underfloor-heating• Domestic hot-water recirculation• Systems where night setback is required.Features and benefits• Better performance with market leading efficiency (EEI0.15) in a more compact design• New flow meter for trouble-shooting and balancing• AUTOADAPT selects best performance curve for efficiency and comfort• Innovative plug simplifies pump connection• Insulation shells included.