Roca R30.30 Boiler Circulation Pump 2 Ways 3 Speeds 122070270

Recirculation Pump Boiler Choosing A Heating Recirculation Pump In A Heating Circuit, A Recirculation Pump Is Necessary To Move The Water Throughout The Circuit. Being A Closed Circuit It Does Not Receive External Energy And Only With The Inertia Of The Heat Of The Water It Would Be Very Slow And Inefficient. All Boilers Have A Pump Installed Inside Them But Sometimes (Height, Dimensions Of The Installation, Sectioning Of The Installation) Another Support Pump Is Necessary. The Installation Of A Recirculation Pump Is Not Particularly Complicated But You Must Know Certain Aspects When Carrying It Out. The Pump Is Sandwiched In The Hot Water Supply Pipe, As Close As Possible To The Boiler, And Must Be Powered Electrically©At 220V. ©It Also Needs To Be Connected Electrically©To The Circuit, So The Pump Knows When To Start And When To Stop. It Is Generally Connected In Series With The Pump Already Installed In The Boiler, So When One Starts,©So Does The Other. On Other Occasions When The Installation Is Divided Into Zones, It Is Common To Install An Additional Pump For Each Zone If They Are Large Enough. In This Case, They Will Be Installed Connected To The Thermostat Of The Respective Area That Gives The Start And Stop Order. The Most Common Domestic©Recirculation Pumps Are 130Mm And 180Mm. This Measurement Refers To The Total Length Of The Pump From Thread To Thread. The 130Mm Ones Are The Ones For Replacing The Boiler'S Internal Pump, While The 180Mm Ones Are The Ones That Are Installed Interleaving Them With The Circuit. Pump Sizing As With The Other Elements Of The System, The Good Sizing Of The Pump Is Important. A Pump With Little Power Will Leave Part Of The Circuit To Be Heated, While One With Too Much Power Will Cause Annoying Noises And Could ±Damage The Installation. To Size The Pump, It Must Be Taken Into Account That Energy Is Transported And Not Water (Water Is Only The Medium That Carries This Energy), So It Will Be Necessary To Calculate The Energy©Needs Of The Installation. To Make This Calculation It Is Necessary To Know The Energy©Requirements And The Load Losses©That Make It Difficult To Transport. It Is Necessary To Know The Maximum Height Of The Installation, The Type And Diameter Of The Pipes, How Many Branches And Valves There Are In The Installation, Etc. The Calculation Is Somewhat Complex So It Is Always Better To Have A Professional Perform It After©Reviewing The Installation. If What You Have To Do Is Replace An Existing Pump, Look At The Power Reflected In The Table Of Characteristics To Replace It With An Equivalent One. On The Market There Are Also©Pumps With Adaptable Speed: They Adapt The Rotor Speed According To The Need At Any Given Time.