Brewwise brewing system brews 11.4 gallons (43.2 litres) of perfect coffee per hour. brews 1/2, 1, or 1-1/2 gallon (1.9, 3.8 or 5.7 litre) batches. stores individual coffee and flavor profiles using adjustable water volume, bypass percentage, pulse brew, and pre-infusion timing. operate any combination of brewwise equipment error-free with wireless brewer-grinder interface via smart funnel. reduce accidents with safety features that decrease hot splashes from funnel, eliminate brewing when funnel or server is not present. troubleshoot all switches and electrical components from the front panel with advanced diagnostic service tools. consistently brew perfect coffee using digital brewer control with pulse brew. simplify installation and calibration by creating your own recipe cards and dedicated funnels with the brewwise recipe writer using your pc (windows compatible). international electrical configurations available. electrical: brewer is 3-wires plus ground service rated 120/240v, single phase, 60hz.grinder is 2-wires plus ground service rated 120v, 60hz, circuit required, 3/4 hp motor. Plumbing: 20-90 psi (138-621 kpa). Machine supplied with 1/4″ male fitting. Other: based upon incoming water temp of 60f (140f rise).models listed as 120/208v or 120/240v must be connected to 208v or 240v electrical service respectively. Please refer to the installation manual.