EWC Controls Forum

Eric,

Well I had the DIP Switch set to HP thermostats but the wiring was for a HC thermostat and the termostat itself was configured to be heat-pump.

I bridged Y+W and connected to Y1. I disconnected W. I tapped the reset button on the 3000Plus. Everything works fine.

Jason

Oh okay, the question was answered then. Both zones were opened when the system stopping calling for cool in both zones. Thanks!

Furthermore, I'm even more curious. In the BMP3000Plus Tech bulletin for the EWT-3707 wiring diagram on page 4 (Figure 2c) it shows a heat pump thermostat and Y and W aren't tied together. I understand this is another type of thermostat, but I'm just curious why it is differnent than what is posted ...

Duh, you said that in your previous post.

What happens (or will happen) if I have Y going to Y1 and W going to W/E in a heatpump thermostat and NOT bridge the two?

I have the EWC 3000 Plus Controller.

When Zone 1 is cooled off and the thermostat stops calling for cool air, should I expect the zone 1 damper to close? If yes, is there a delay in the damper closing? Or does the damper just stay open until the other zone calls?

Thank you for the information. Well I figured out the problem. I had W + Y unbridged, but the wires were switched. I had WHITE into Y and YELLOW into W. once I switched them it worked. DUH! However, I am interested to know if on the thermostat that Y+W should be bridged together at the thermostat ...

Hello. I have an EWC BMPlus 3000 Controller. I have two Honeywell TH4110D thermostats. I have Goodman Air Handler and Compressor. Both thermostats are configured exactly the same. When Zone 1 is calling, everything works just fine. The outdoor unit turns on, the air handler turns on and zone 1 cools ...