What is ob on a thermostat

Upon first installing your thermostat, if heat is coming on instead of AC, it may be due to incorrect wiring or an incorrect configuration. If this is happening, please remove the ecobee thermostat from the wall and check the following.

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What is ob on a thermostat

This thermostat is the master in a 3 zone system - no heat pump, forced air and oil heating but we still have o and b wires. Now I am stumped as the master has the following wires in the photo :. B wire is Blue and O wire is Brown. Go to the Recommended Answer. There is no affordable zone controller that will handle three HVAC equipment. You will need one zone controller for each of the air handlers that has dampers in the ducts. The smart residential smart controllers I prefer are the ecojay SmartZone 4X. View Recommended Answer in original post. The reason I prefer the EcoJay SmartZone is they will allow any zone thermostat to activated the system and thermostat 1 is still the priority thermostat. Additionally they are capable of Supporting the Nest Thermostat in heat pump duel fuel mode. They are easily configured and programmed. As to those O and B wire, you will not need them. With the ST-2E there can only be 1 master thermostat. No other thermostat can change the system mode.

This section will guide you through the necessary preparation, the steps for installation, and how to address compatibility and troubleshooting concerns. Some zone controllers are not very intelligent. Replies are disabled for this topic.

Home Knowledge Base. Thermostats act as the command center for heating and cooling systems, and their wires are like the hidden messengers. Generally, a wire is connected to each control point within the HVAC system. These wires are typically color-coded to simplify the setup. The C-Wire , or common wire, is essential for smart thermostats, like the Nest thermostat. Without it, maintaining Wi-Fi connections and providing consistent functionality would be a challenge.

Understand how it impacts your HVAC system. Explore troubleshooting tips and installation guidelines. Many of the links in this article redirect to a specific reviewed product. Your purchase of these products through affiliate links helps to generate commission for Storables. Learn more.

What is ob on a thermostat

Home Knowledge Base. Thermostats act as the command center for heating and cooling systems, and their wires are like the hidden messengers. Generally, a wire is connected to each control point within the HVAC system. These wires are typically color-coded to simplify the setup.

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Now I am stumped as the master has the following wires in the photo :. From what I've read, it goes like this.. I wonder if I could use the H terminal to run a wire to W on the furnace. Recommended Communities. Upon first installing your thermostat, if heat is coming on instead of AC, it may be due to incorrect wiring or an incorrect configuration. Thanks so much for the offer for realtime help - I may take you up on it for a case of beers Which controller would you recommend - ease of swapping out is important, so is to have the current wires work rather than putting additional wiring. Hello CoolingWizard - got the 2x, have figured out the dampers we have 2 dampers actually on the ecojay vs EWC, and everything but am stuck on the 24v supply. Post Reply. You will book up the thermostat with all wires and the R will not be separated like the EWC. Thank you!!! Thanks delack. Mine also has one marked H. If you have a Heat Pump system.

Timothy Thiele has an associate degree in electronics and is an IBEW Local Union Electrician with over 30 years of experience in residential, commercial, and industrial wiring.

E: This works nearly identically to auxiliary heat, but for emergency purposes only. The wiring diagram is most likely on the inside of that panel that you take off. Chromecast Help Center. If you don't have a 2-stage system, that one can be left unconnected. You will need one zone controller for each of the air handlers that has dampers in the ducts. Follow Us. Here's where I'm not sure. Go to answer. If you have three separate systems, and if each system has separate zoned areas, you would need a separate zone controller for each system. Repair Expand child menu Expand. This section sheds light on some of the common inquiries homeowners and installers may have. Consult the manual of the current thermostat or contact the manufacturer directly for brand-specific guidance. If my answer solved your problem, click Recommend this Answer below, and If it helped you, please give a Kudo. If you indeed have a transformer to dedicate to the zone board, connect it at PWR connector at the lower left corner. There is no Thermostat in the world that can tell what color the wire is.