about 40% more

Dan,

does you tstat tell you when 2nd stage  is running and when aux is running?

Unfortunately, the VisionPro 8000 (8321) does not tell you when Second Stage is on. When I was first worried about making sure that two stages occurred, I had to monitor the current at the compressor (and listen for the fan, but the fan difference was small). Second stage rolls in so quietly on the Climatemaster Tranquility 27 that it is hard to tell. But the compressor current goes from about 5.xA to about 7.xA for stage 2).

We just had another power failure, and the house dropped to 65, with tstat set at 71. Immediately on return of power, the stat set AUX on. When Auxilliary is on, the VisionPro DOES show a message on screen, near the temperature setting "Aux Heat On".... When stage 1 or stage 2 is running, all you see is "Heat On".

The way our fan settings are (it is a variable speed).... when in AUX, they really scream...much louder....so that is probably the obvious way to tell Aux is on....

As above, around 2 degree increase in setting seemed to cause stage 2, a few degrees above that forces aux, unless it has something to do with recovery (but I turned the smart recovery stuff off, since we keep all our stats at 71 winter, 75 summer).

I currently use White Rodgers 90 Series Blue tstats, model 1F95-1271.  WaterFurnace private labels these tstats - my tstats are labeled "WaterFurnace" on the case.

I have 4 of these tstats (4 zones).  One tstat failed in the first year of use.

These tstats have an indication for 1st stage heating and a separate indication for 2nd stage heating.

If the tstat calls for 3rd stage (Aux) heating, no additional indication beyond 1st and 2nd stage heating is provided.  And similarly for Emerg heat, no indication is provided if the GSHP is in this mode.

I have my tstats set to cycle heat at approximately 1.2°F from the set point.  I further have my tstats set to not turn on 2nd stage heat until the setpoint temp is 1° or more above actual temp for more than 40 min.

I'm not able to figure out what conditions must be present for my tstat to energize 3rd stage (Aux.) heat.  Since I don't have any heat strips installed to be available for Aux or Emerg heat, I haven't spent any time figuring this out.  (My WaterFurnace Envision units will turn on a stage of strip heat, if installed, every 5 minutes as long as tstat is calling for 3rd stage / Aux. heat.)

I'm also not able to figure out how my tstat can turn on emergency heat.  (My WaterFurnace Envision unit will turn the fan on high and turn on each stage of strip heat every 2 minutes, in Emerg heat mode.)

Best regards,

Bill

 

I have used another manufacturer's tstats with my WaterFurnace Envision GSHP units.  The tstats are AprilAire 8870.  These are communicating tstats designed to have a separate from HVAC communications port to interrogate HVAC status and to control the tstats.  Computing equipment / automation controllers are connected to these tstats via an RS-485 tstat network.  At the time I had 4 of these tstats running my 4 zone home, with the tstats being controlled by a home automation controller.

These tstats do not have a separate 1st versus 2nd stage display indication.  They do, though, have an indication when Aux. or Emerg heat is in use.

The tstats' sensitivity to turning the heat on, and shifting to 2nd stage, are set in the tstat, in half degree increments, up to 2.5° - i.e., max difference between actual and set point temp can be set as high as 5° for 2nd stage.

Emerg heat can be directly turned on.  I don't know how the tstat determines if Aux. heat should be turned on.

The really neat thing about these tstats is the communication aspect.  Everything you want to keep track of, and control, is available via the RS-485 port.  This is how you safely 'roll-your-own' HP controller - using a UL product like this as the interface between your HP equipment and your computer.  These tstats are the defacto standard for use with big commercail AMX or Crestron control systems.

Best regards,

Bill

hey Dean

I Have a Climate Master tranquility 27 Geo thermal unit and I'm using 2  Climate master ATP32U01 thermostats(one for each zone) that i like very well. Quiet, and easy to operate. they're supposed to give me a fault code when there is one, but that apparently doesn't work (wired properly).

Our Waterfurnace Envision049 was installed with a Watrerfrnace TA32W01 thermostat. I like it. simple, basic and does not need to be programed. There are indications for STG 1, STG 1+2, and EMER. It has an automatic "staging program" that learns when to use stage 2 or aux. One time we were out of town for 7 days so I set the temp back to 60. When we returned home and I set it back to 70, after about a 20 min, I noticed the "+2" indicator was blinking and could find no reference to this in the manual. Last week when we had a blizzard here in Michigan, unit was on "STG 1+2" and I heard the stat "click" and the "+2" started blinking. I smelled just a little wiff of burning dust so I think the blinking "+2" indicates aux electric strip heat on.

So it appears from posts here that some of the White Rodgers tstats ( private labeled by WF) do tell if 1st , 2nd or 3rd stages (aux) are engaged.

Tranquility 27 4 ton, 2 White-Rodgers 1F85-0471 through a Robertshaw 2701 zone control panel.

While the thermostats themselves have the capability of reporting the stage status, they lose this capability because the zone contol panel dumbs them down to setpoint statisfied = yes or no.

Gary De - I also have a Climate Master tranquility 27 and a 2 zone system.  I'd be interested in what zone control system you have?  I have Robertshaw 2701 zone control box which prevents me from using Climate master thermostats.

Thanks

Be fair to zone controller

It should aggregate requests from individual zone thermostats to decide on stage to select. Stated another way, if just one zone out of 3 or 4 calls for stage 2 while other zones are satisfied, system stage 1 is all that is needed. OTOH if 2-3 zones are several degrees behind then stage 2 and possibly aux are reasonably called for.

That sounds good, what zone controller compatible with Climatemaster does that?

I have a Climate master heatpump and thermostat, and am not sure what I need to do to suppress the aux heat. I have a single stage heat pump (5-ton genesis series) in an open loop configuration, with aux heat installed. I would like to disable the aux heat just using the thermostat, but am unsure which thermostat model I have, and even reading many of the manuals, unsure how I would do it.

I am now setting the thermostat for 66 at night and 68 during the day. I would like to keep the aux heat from coming on unless the temp drops 5 degrees below the set point, or if it is more than 2 degrees below the set point and it has been running too long. I have no idea how long too long is as far as making a good energy use decision is. I am comfortable with temps at 2 degrees below the setpoint, so there is certainly no need for aux heat unless I am really doing something energy inefficiently, or risking damage to the system.

Also, where can I find the model number of my thermostat?

thanks for any help.

I have an Envision with a TP32W02 thermostat that indicates "stage 1" for stage 1; "stage 1 + 2" for stage 2; and flashing display "stage 1 + 2" for auxiliary heat. I have disabled the aux heat in the furnace dip switch panel. The thermostat controls the temp very precisely and varies at most within a 0.4° range according to a nearby recording thermostat. It also has a cool blue backlight that is a nice nightlight for the hall. And its got a touchscreen panel. I like it.

Do you have the manual?

Where the wires connect to the tstat,  the terminals are labled.  If you disconnect the wire to "w" terminal,  this will disconnect your aux heat.

Hey Jambsi

i have an Arzel air Boss it seems to work very well with the climate master thermostats. its a 4 zone board with 2 zones hooked up. the only thing I don't like about the climate master thermostats is they don't tell you what stage the heat or cooling is in. I can look on the zone board though (in the basement) to see the inputs from the thermostats and the output to the heater(or a/c). I am very happy with the zoning.

i'm sure my zoning board doesn't do that. if I have a stat calling for stage 2 my zone board sends the unit the request for stage 2.

I have the least trouble from the Honeywell 8000's.
J