Hello, I am about to start my new TZ22 Climate Master. I have the Climate Master Diagnostic Tool but I plan to use an EcoBee as my main thermostat. Is there anything I should know, any tricks for those who are used to it? I would gladly accept any cues on the wiring, setup, etc. Thanks! Laurence.
Thanks Joe, I know you are installing them on on Digital Climate Master units. I will do as you say and start with the EcoBee controlling the cooling only. I thought that I would go throught the EcoBee setup to tell I have geothermal and other stuff...
For start ups, you can use the service tool. Ecobee is intimidating to set up at first, but you willo get it with a little goofing around.
Finally connected everything. I started up with the Diagnostic Tool as suggested and it went fine. Then I connected the Ecobee and I was very impressed with their interface. When you start the setup wizard, they ask you all the questions and then they give you a wiring diagram!! It works fine, it's intuitive and I think it is a revolution compared to traditional thermostats! One question though, the stage 2 heating seems to kick in automatically after a certain time. I specified I want stage 2 only when the required temp is 5.6C higher then the current temp... I set the temp 2 deg higher than current, Stage 1 kicks in, but like 15 minutes later, stage 2 kicks in... I can specify a maximum stage 1 runtime before stage 2 kicks in but I don't want this, so I leave it to auto. Any help would be appreciated!
ecobee has both time or auto adapt as well as temp delta's you can disable time delta (from auto to N/A or whatever the language is). I'm not sure why you would set second stage several degrees lower, I'd set it about 1/2 or 1.
It is a country house, most of the week I am not there. During the week, I would love if the machine could stay on stage 1 and only maintain the house. If it goes on stage 2, I will reach the desired temp and the geo will go on and off and so forth... On the program, on Friday morning, an higher temp would be called and then the geo would switch to stage 2 so the house is warmer when we arrive... This was my plan!
I agree. Stage 2 will only come on if Stage 1 can't keep up. Retarding Stage will lead to comfort issues when occupied. Efficiency is in the lower unoccupied setpoint. Greater efficiency in Stage 1 is overstated in published ratings given a 9 degree boost in loop temperatures that doesn't happen in reality. It merely represents that Stage 1 occurs predominately at the shoulder seasons when loop temps are higher. A lookup in the capacity charts at the same EWT shows about a 0.1 difference in COP. I am not sure why you would want to delay Stage 2.
Add a stage two lockout in the form of a 79 cent light switch interposed in the Y2 circuit that you turn off when you leave, turn on when you arrive. With advance preheating via WiFi low stage should get temps at or fairly close to setpoint during all but the most severe weather. That said, I agree that the COP loss between low and high stage is minor, so why bother? (Cooling is a different story - low stage EER is substantially higher than high stage EER, so strategies to minimize high stage operation pay back much faster in the sunny south)
OK Curt, I just thought that stage 2 would take more power and since I don't really care what is the temperature while I'm not there, I thought that stage 1 running all the time would be preferble to stage 2 running 75% of the time. But if the difference is so small, maybe we shouldn't bother like you said.
Stage 2 does take more power, but delivers more heat keeping your cost/btu loosely constant. If you need the BTU's, you need them.
How does Ecobee do with controlling the fan speed on a Climate Master Tranquility 22? Does it leave the fan speed control up to the Heat Pump? Do you feel that works well?
The TZ22 control board controls the fan speeds based on mode of operation heat/cool and staging, and factory default fan speeds or speeds setup with the Climatemaster Diagnostic Tool or Communicating Thermostat. Pages 33-34 of IOM http://www.climatemaster.com/commer...ng-and-cooling-system-installation-manual.pdf
Thank you. Do you know if the Ecobee reverts to default settings to determine fan speed? For example Stage 1 would be 750cfm and stage 2 would be 1000cfm? Does higher fan speed increase KW usage? It seemed to actually decrease kw usage when looking at the product catalog.
It does not matter what thermostat you use. The thermostat will control the mode and staging of the HP. The HP control board will control the fan speed based on what mode and stage it is operating in according to the values programmed in it (by factory default or setup with Climatemasters Service tool). In heating higher fan speeds will slightly increase Heat of Extraction and COP. The fan watts will increase but the compressor watts decrease as the air coil temperature decreases.
Thank you for the reply ! I’ve tried both the climate master communicating thermostat and ecobee and I prefer the ecobee. With ecobees extra sensor and a fan tech in line fan I installed in a main duct I pretty much have 2 zones. More heat is forced to zone 1 when the fan is off and when the fan is on extra heat goes to zone 2 and the extra ecobee sensor monitors the 2nd zone. I keep the climate master thermostat for trouble shooting if needed. I don’t think I really got total fan control with the climate master thermostat. It seemed like there were presets that I really couldn’t over ride. Ecobee gives you the operation history and that is extremely helpful for getting the geo to run most efficiently. My setup I just described is working good for me. Thought it might give others some ideas.
