This Video gives beginners a brief explanation of how to install a secondary return in a commercial setting. This was added to an Unvented Cylinder installation at a later date. (We did not install the cylinder)
Nice job that fella tidy pipe work and lagging. Balancing valves and an isolator by the cylinder. All mappressed 👌 no hot works. 😉 I would put a non return valve on though especially being a school.
I am not knocking your work it is very tidy but do you use a pipe benders because I count 12 x 90 degree bends on one line sweeping bends are much better and less fittings to leak.
Informative video. Q: can two loops be made on a single secondary pump? I ask because we need to feed two ends of a long building, otherwise it would result in a single loop of approx 65m. All new install, all new pipework.
Hey mate good video ….so if I’m installing a secondary return any pipe work would just connect into the hot feed anywhere on the main hot circuit or does it have to connect near the services, bathrooms etc ? And in terms of the pump what kind of timer would you be installing ? Sorry for the long winded question I’m still learning all this
Cheers bud. It’s good practice to tee into the hot pipe within 1 metre of each outlet it’s feeding. Some sec pumps will have built in timers, Grundfos/DAB do one 👍🏼
Great video. A layman question... is a non return valve needed on the pipe work before the pump enters the cylinder? If so do you know why? I've not been able to find the answer to this via Google! Thanks!
