Need help badly

Hi. I am a contractor that is building his own home. I had pex supply engineer my radiant system and I already have my 3 zones of pex run and my ao smith vertex water heater installed. I am fairly good at plumbing but canot find any sort of a diagram of how the pumping station should be plumbed. I hired a plumber and have half down but after I pointed out he forgot s traps on the sinks he left and now financially I'm stuck trying this part myself. Any help would be appreciated as I'm hoping to move my family in by Christmas. I do know pex gave me 3 taco zone valves and a heat exchanger and two pumps. I have several other parts but those seem the key ones to tell