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Outdoor reset installed , questions
I have just installed a out door reset to my lion 23 kw boiler . It is set to 120 f and tonite it has warmed out outside to -14 c .
I can confirm that the max water temp at the moment has been reduced down to 115 f ( according to my lil laser thermometer) . I do however have a few questions.
I have 3 zones with 3 separate bell and gossett nrf 25 3 speed pumps all set to low.
I’m running.4 ish gpm the system seems to run a lot , and the boiler will quickly fire all elements get up to temp them shut all off and repeat/repeat this over and over until the stat is satisfied.
I’m wondering if I have too little water flow with too little water speed?
The main zone is 1/2 inch pex with 11 300 ft runs . How do I calculate head loss and compare it to the capability of my pump?
The next zone is same 1/2 inch pex 5 runs /300 ft each
The third and final zone is 3 runs 300 ft long . Thx in advance for any help or direction you can provide, s