Multiple Nest Thermostats on one temperature sensor

[EJH]

I have one room with multiple PTACs with each having it's own Nest Thermostat. Each thermostat is connected to the same temperature sensor. Each thermostat have identical temperature set-up (I copy paste each week). My issue is that the thermostats appear to be reading the sensor at different times and not continuously so the PTACs are not all starting when the sensor reached the set temperature. 

Anyone out there that knows how to overcome this issue?

[zoeuvre]

Hi EJH, 

Yikes! If you have multiple Nest Thermostats connected to the same temperature sensor but are experiencing issues with them not consistently reading the sensor at the same time, here are a few potential solutions you can try:

1. Ensure that the temperature sensor is placed in a central location within the room, away from any direct heat sources or drafts that could affect its readings. Placing the sensor in an optimal position can help ensure more accurate and consistent temperature readings.
2. Within the Nest Thermostat settings, there may be options to adjust the behavior and frequency of sensor readings. Check the settings for each thermostat and ensure that they are configured to read the sensor frequently and respond to temperature changes promptly.
3. Verify that the schedules for each thermostat are synchronized. If the thermostats have identical temperature set-up copied from week to week, double-check that the schedules are aligned so that each thermostat is programmed to act at the same time based on the temperature readings from the shared sensor.
4. Consider enabling the Eco mode on each thermostat. Eco mode allows the thermostats to use the temperature reading from the shared sensor to collectively determine if any PTACs need to be activated. This can help ensure that the PTACs start simultaneously when the set temperature is reached.

Let us know how it goes.

Best,

Zoe