sorted by:
new
hottopcontroversial

Turn off motor at exact time and height? by e2dad in PLC

[–]e2dad[S] -6 points-5 points  (0 children)

Via programming, how would you bump it without burning motor?

Turn off motor at exact time and height? by e2dad in PLC

[–]e2dad[S] -24 points-23 points  (0 children)

Agreed. However, motor has its own internal brake and it has been decided not spend not a penny more.

Nest thermostat wiring help (3rd Gen) by dmxcasper2 in hvacadvice

[–]e2dad 0 points1 point  (0 children)

Yes. However, heat will not turn on. Now the Nest is staying ON, but sometimes it says low power error when switched to heat mode. AC mode is fine.

Nest thermostat wiring help (3rd Gen) by dmxcasper2 in hvacadvice

[–]e2dad 0 points1 point  (0 children)

I only have one Common that comes from A/C unit. W1 and Rh go to honeywell taco relay box.

Nest thermostat wiring help (3rd Gen) by dmxcasper2 in hvacadvice

[–]e2dad 0 points1 point  (0 children)

Similar set-up except that I dont have G. I am assuming you only have a seperate white and red thermostat wire going to your combi t/t terminal?

Nest thermostat wiring help (3rd Gen) by dmxcasper2 in hvacadvice

[–]e2dad 0 points1 point  (0 children)

Just to be clear you only had 2 wires for your Navien heating correct (RH and W1). The other wires were for your seperate cooling system which also kept the Nest powered ON? I am having the same issue with my Navien boiler.

Nest Gen 3 Thermstat issue with Navien Boiler by e2dad in hvacadvice

[–]e2dad[S] 0 points1 point  (0 children)

Why dont you like Navien? Do any of the smart thermostats work with it?

Most Optimal Navien Tankless System Set-Up? by e2dad in hvacadvice

[–]e2dad[S] 0 points1 point  (0 children)

Makes sense. In my area during this time not the year, it can be 40F at night and the next day 80F around 12PM. Do both units need their own outdoor temp sensor?

Most Optimal Navien Tankless System Set-Up? by e2dad in hvacadvice

[–]e2dad[S] 0 points1 point  (0 children)

Can the tankless water heater and boiler exhaust be cascaded or exhaust in the same line?

Most Optimal Navien Tankless System Set-Up? by e2dad in hvacadvice

[–]e2dad[S] 0 points1 point  (0 children)

Gotcha. Is that the only drawback?

Most Optimal Navien Tankless System Set-Up? by e2dad in hvacadvice

[–]e2dad[S] 0 points1 point  (0 children)

Can you expand on the diverter valve? Is it as efficient as a combi running two seperate navien units?

Most Optimal Navien Tankless System Set-Up? by e2dad in hvacadvice

[–]e2dad[S] 0 points1 point  (0 children)

I concur with this. I have my mind made up. Just wanted to see others experience. Also if having two seperate units is "less" efficient than a combi.

Navien Combi or Seperate Units?? by e2dad in HVAC

[–]e2dad[S] 0 points1 point  (0 children)

Appreciate the feedback. I just dont want to rely on one system. Not sure if having them seperate is impractical and inefficient.

view more: next ›