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Pressure Differential Bypass
I'm about to install a Triangle Tube Prestige Solo 175 system and have a question regarding the TT warning to ensure a pressure differential bypass is installed. My setup will be using zone valves (4) with a Taco Bumblebee (Delta T) ECM as the system pump. Indirect water heater will be controlled by a separate Taco 007. In this setup, should I still have the bypass? I understand many of your comments regarding a Delta P ECM obsoleting the bypass, but does the same hold true of a Delta T?
And, if the recommendation is to still install the bypass, must the valve piping match the header size (1 1/4") or would it be sufficient to install a 3/4 bypass in this case, due to the expected low throughput of the ECM when the bypass should be triggered?
Thanks in advance for your help...