comfort bridge set up quick

[@mattstephens1164]

Hi! This is extremely helpful. I have two of these installed in my house with heat pump 2 stage outdoor units that are communicating capable but wired up legacy based on what I can tell. I'd prefer they were communicating. For the Communicating wires are we able to utilize the existing legacy wires from the air handler to the heat pump or do they have to be shielded/special wires? Thanks!

[@johnstonecg]

Standard 18 solid will be fine, non shielding is not an issue. Reuse the wires you have use only connections on 1 and 2 (do not use R and C). To confirm good comm signal measure from C to 1 and then C to 2, subtract them, difference should be over .5VDC, if not we can talk termination switches.

[@wessutube]

The installation manual doesn't say anything about the thermostat requirements but my understanding is that for a communicating Goodman HVAC unit the thermostat must also be communicating and a legacy/conventional thermostat will not work on it especially if the target HVAC system is a multi-stage system. On the same line of thought is it true that RUUD's ECONet type of a communicating system especially a two-stage type will need compatible thermostat and a conventional thermostat will not work on it.

[@johnstonecg]

All comfort bridge (bluetooth) Goodman Units require only a conventional thermostat to run all equipment form ac to heat pump to gas to inverters. All that is needed is a W signal for heat and a Y for cool. Do not use a communicating thermostat with a comfort bridge furnace.

[@johnstonecg]

if you removed the 12RC plug you would see2 wires connected to the RC. They would stay connected and 1-2 from inside would go to 1-2.

[@yosoycubasi]

when should I use DEhumidification Logic High or Low?

[@johnstonecg]

If I understand your question, dHL set to one will slow the blower down slightly when 24 volts is present and set to 0 slow the blower when no 24 present (defaults to 1). A DE humidistat can be installed and deliver 24 volts when humidity is above set point slowing the blower to change the SHR for better humidity removal. (DE terminal)

[@mandmengineer]

Is there any way to specify a heat strip lockout temp? Or a compressor lockout temp? If not, what logic does it use to call for strip supplemental heat?

[@johnstonecg]

Yes via app or by push button. The compressor lockout temp defaults to 45 and can be set via CbP setting. The logarithm used for back up heat is in the CFS setting 1 is very aggressive satisfy thermostat quickly and 5 less aggressive. This will allow the HP time to satisfy or drive on electric back up.

[@mandmengineer]

@@johnstonecg Thanks for the information. I am not familiar with the "CFS" acronym? What do the letters represent? One further question, please: Can a electric furnace with the new ComfortBridge technology use the communicating protocol to control a Goodman Heat pump that was used with a Comfort Net based furnace?

[@johnstonecg]

@@mandmengineer CFS Comfort Settings, gives it a period of time to make thermostat demand before back up comes on. short as 12 minutes long as 2 hours with a variety of stage up and down settings to customize the algorithm. Try my FTP site Johnstonecaffertygroup (.com) and look for cfs comfort bridge file. And yes 100% the communicating units can all connect to the 1&2 terminals but the CTK04 should not be used (the only exception is with the PEC AHU). A 1H1C stat is used (even with the inverter heatpump) unless the outdoor unit is a non communication heat pump then a heatpump thermostat can be used.

[@abdorakeebnaji1527]

I wish you did this video on the furnace board Practically, not theoretically it will be much better..I'm an hvac contractor i was installing goodman furnace always but now I stopped buying them because they make it so complicated.

[@huannguyen3820]

Good morning, I have GMVC800805CNAD pair with non communicating out door unit and I set at 4 tons with 1600 cfm. What happen if the G wire is connected from T-stat to the AHU when in cooling mode? Does the AHU put out the 1600 cfm? Thank you.

[@johnstonecg]

24volts on the G wire would run cont fan. FSd setting is a percentage of full speed so 50% would be about 1100CFM. The 24 volt on Y would run off settings on ton, 400cfm for ton so if you set ton to 4.0 you will get your 1600. Cooling or HP have priority at the control side so no mater what the G (FSd) is set for the blower runs on the Y (ton).

[@taco198585043]

Any idea why in heat mode my blower will shut off a few minutes into running? My pressures were holding steady at 130(ish)/330(ish), then my high side starts rising rapidly. I finally figured out my blower stops running. It keeps running in cooling though.

[@johnstonecg]

It could possibly be the anti cold air fan delay. If you have a BVA20 AHU it cycles the blower off with low temp on the hot gas line. The board should have 3 blinks at his time. Turn SW6-3 to off on the BVA20 to disable that feature. You will have blower come on right away with call and may feel some cold air. at start of cycle.

[@taco198585043]

@@johnstonecg it's an avptc61 and I didn't see anything like that in the settings. When I got into cool cloud, I have a lot of indoor unit can not communicate with outdoor unit. My first thought was the control board on the condenser.

[@johnstonecg]

So sorry I have you confused with another reply, No reason at all. Make sure the ODS is set to hp1 (or2)and the Y (Y2 if wired legacy mode) is connected to the board. if the outdoor unit is communicating with the 1 and 2 make sure the stat is in standard mode (1H1C) and not heat pump. Let me know on that Id be happy to help

[@taco198585043]

@@johnstonecg thank you, I'll try that when I get home

[@jaramilloereli]

How do we set the auxiliary heat on a heat pump 2 stage? I know you have to program the KW. Is that the EHL?

[@johnstonecg]

scroll to EHT hit center button scroll up and down to the KW installed hit center button 2x (not one time like in instructions)

[@jesssseg]

Is it possible to modify the staging settings? My 2-stage heat pump tends to go straight to stage 2 on cold mornings. I’d prefer that it ran in stage 1 and ran longer cycles.

[@johnstonecg]

If you have a heat pump thermostat (it will have an emergency heat settings) the settings would be in the thermostat. If your running a standard 1h1c thermostat (Goodman can run the heat pump with the W) you would need to set the CFS to 5. If it is at 5 then you can try changes to target (tgt) to 40 and over target threshold (ott) from 10 to 20. If you would like help with the thermostat just let us know the model.

[@jesssseg]

@@johnstonecg Thanks, that's very helpful! I only have five wires to my Ecobee thermostat (R, C, G, W, and Y), so my understanding is that aux heating is controlled entirely by ComfortBridge. Does that sound correct?

[@johnstonecg]

@@jesssseg Yes so the upstages from stage 1 to 2 to back up are controlled by the algorithm in the board and the adjustments are made in the CFS settings. If you have the app on your phone the settings are a lot easier to adjust than push button but either will do. You can use the general setting or customize settings. just set your target to a longer time and the unit will not upstage as quick (gives low speed more time to satisfy thermostat). You may wish to extend the strikes to allow for more errors before it brings on stage 2 faster the next cycle.

[@jesssseg]

@@johnstonecg Thank you so much! Far more helpful than my installer!

[@jesssseg]

@@johnstonecg one more question you might know the answer to. Is outdoor temperature taken into account when ComfortBridge chooses which stage to use? My HP kicked on at 1:30 this morning and went straight to the second stage. The outdoor temperature was 34 degrees. This was about six hours after the previous run, so I don’t think that run would have affected the which stage was run.

[@trampledtalon7016]

i have honeywell zoning on my avptc air handler and for some reason when i set the fan to on or circulate my blower wont turn on, i have 3 units all with zoning and they all do the same thing. i need to set up an external dehumidifier but i cant get it to work because the fan wont run independently. any help would be appreciated.

[@johnstonecg]

Does the display show FAn? The zone control would energize fan with 24volts on the G terminal and the display would change from idL to FAn. If it does not send us model of zone panel to help you out. If board shows FAn folowed by the A with cfm the fan should operate or the board has no output.

[@bills6946]

@@johnstonecgyou might check configuration settings on the zone board and thermostats. Set for “Thermostat controls fan”, not “Equipment controls fan”.

[@wessutube]

I have a communicating Furnace Goodman GMVC960803BN that is hooked to a communicating outdoor condenser Goodman GSXC180601BA. The condenser didn't come with the control transformer. I used my building pre-wired legacy two conductor cable to connect terminal 1 of the mainboard with 1 on condenser and the same with terminal 2. Right now R and C are not connected. I updated the board using coolcloud app, power cycled, turned back on and set up the thermostat to cool. Everything looks good except that the condenser fan is not on meaning the thermostat command is not fullfilled by the outdoor unit. The manual also says that the communicating unit will need a transformer powered locally via 240volts. Do I need the transformer for my condensing unit? Why then Goodman ships it incomplete without a transformer? may be saving few dollars assuming it will be a new installation where the condensing unit control cable coming from the main board will be four conductor.

[@johnstonecg]

Anything in the last 4 years requires no connection to the R and C. If the outdoor unit has a display lit the R and C is not needed. In your app it should see the model and will have a test mode for communicating units (test shows up on all units but only operates the communicating units). If you don't see the outdoor unit in the app measure between 1 and 2 DC volts. You need around .6VDC. If you do not have .6 power outdoor unit off, find TERM switch's 1 and 2 and move them to off. power up and retest voltage (1 and 2 are polarity sensitive).

[@wessutube]

​@@johnstonecg To verify I measured both the phases and they are there at the condensing unit measuring 244volts but LED display is not illuminated meaning, I think, it needs a transformer. I wonder why? the unit is from last year not more than a year old. Anyways, it seems like I have to arrange a control transformer to install locally on the condensing unit to provide R and C connection. I do see test and two other buttons on the condensing unit board and pressed it multiple times but nothing changed.

[@johnstonecg]

@@wessutube you should have wires on the R and C of the green (or tan) plug. If you do not a 24 v transformer is needed.

[@wessutube]

​@@johnstonecg The green Pheonix connector comes separate with screw terminals. The two wires from the main board coming out from the house connect to the Phoenix screw connector on terminals 1 and 2 which connects to the PCB mounted male/pin part of the Pheonix connector. There are no wires to connect to green Pheonix connector on R and C terminals.

[@johnstonecg]

@@wessutube Then it will require 24 volts from indoors or its own transformer. I didnt see the serial number but a unit with a serial starting with 19 should have the 2 wires on R and C, if not they can be added.

[@wessutube]

Can I replace EcoNet based RUUD thermostat with a WiFi type thermostat. Currently it doesn't have the WiFi option.

[@johnstonecg]

If the ECOnet is connected with the econet bus (R-c-e1-e2) then no you can not. ECOnet (Rheem and RUUD) have a wifi version that can be used. With the bus wiring the stat is proprietary and legacy wired thermostats will not work.

[@wessutube]

@@johnstonecg Thanks alot for your help and responses. I have the same understanding for EcoNet but my expectation was that there may be third part EcoNet thermostats available which gives user like me more choices and even makes it cheaper but may be not. All that I find online for EcoNet is the RUUD's own thermostat especially if I want WiFi with it too.

[@huannguyen3820]

I am setting up GMVC800805CNAD with ODS single stage AC, 4 ton. When I turn on to cooling mode, nothing happen. The display show AC. Fan is not coming on. Can you tell me why?

[@johnstonecg]

The unit ships with Y off. Use the App or 3 button display to navigate to ODS and change from OFF to AC1 (or 2) by pushing the right or left button until ODS is displayed pushing the center button, when of is displayed push the right or left to get the desired equipment then push center button 2 times. o the same with TON (sets the tonnage).

[@huannguyen3820]

Would you show me how to setup and wiring GMVC80805CN with non communicating outdoor heat pump (dual fuel)?

[@johnstonecg]

sure go here for drawing spaces.hightail.com/space/VZ9h2W60EI also dont forget to set ods to HP1 or HP2 and then set ton

[@huannguyen3820]

I have GMVC80805CN furnace. When I wired the O wire from the thermostat to outdoor NON COMMUNICATING HEAT PUMP, does the COMFORT COOL CONTROL knows when thermostat is calling for heat pump to come on to slow down the indoor blower motor in heating mode?

[@johnstonecg]

The board is programed to be 1cool 2cool 1heatpump 2 heatpump or off(factory setting) The board will run the proper cfm for the tonnage of heatpump (usually 400CFM per ton) Caution when ever slowing air down on a heatpump but if you do want to slow the air down on the heatpump cycle you can use airflow trim

[@huannguyen3820]

Factory d with the Y terminal off? How do you turn on the Y terminal?

[@johnstonecg]

Reviewed this in video and other responces

[@varunpaul-d5u]

How to turn off the IDL mode, my blower is setup at continous mode, showing Fan 01, I want to turn of the fan idle mode

[@johnstonecg]

idL just means the system is idle and has no call. It will always display unless you have a signal for operation. Energizing G would run continuous fan and will change the display to FAn and display the speed set on the board, F01 in your case. There is no way to remove idL from the display.

[@varunpaul-d5u]

@@johnstonecg Thank you, yes, HRV was signaling to the Furnace through the G wire, Disconnected the G wire from the thermostat, HRV and Furnace, it's all good, fan has stopped continous mode.

[@aliahmed-tz4pf]

I have one. I contacted 6 wire w R G Y c. Put In heat the fan work fine put. In Ac cooling the blower fan not working in cooling

[@johnstonecg]

ODS is not set! Go to ods setting and set to AC1 or AC2, then go to ton and set the number to match tonnage of your outdoor unit.

[@gg.8842]

Is there any chance you can share that slideshow as a link My teacher needs it for a lesson

[@johnstonecg]

Absolutely link here spaces.hightail.com/space/9A95EADcbc

[@taco198585043]

Any idea why I can't access the app on Android? I've been trying to connect to my unit and I can't even login, it just kicks me out. There seems to be multiple comments about this in the app store on this issue.

[@johnstonecg]

APPS - coolcloud - permissions - allow all last update messed things up a bit

[@taco198585043]

@@johnstonecg thank you so much!

[@taco198585043]

@@johnstonecg I've got another question. I installed my system in Nov so I wasn't fully able to dial it in. I finally got around to checking charge last night. I noticed a filed test mode, but couldn't find anything in the manual. How do I use it? Also, in C1 I had 0sh and about 3.6sc, in c2 I finally got to about 9sc, but still 0-1sh. If I were servicing a unit, I would adjust my txv to add sh then adjust for sc. But this being 2 stage, not sure if it's in the design?

[@johnstonecg]

Going to permissions for the APP and allowing all will normally resolve the issue. If an Android or Apple update effect the APP you would need to wait for an update. Every APP setting can be done by the push buttons. A list can be found at end of this video kzbin.info/www/bejne/hZS0dXV6pt-FnJY .

[@taco198585043]

@@johnstonecgyou solved that issue for me with your initial reply. I had 2 new questions

[@waynespringer501]

Holy cow what is wrong with your microphone?!?! Every sentence you started off screaming with your mouth against the microphone, followed by talking while backing away far enough to be inaudible. Making watching this on a television impossible!

[@johnstonecg]

A few of the videos were rushed made at different locations (we have 10 in total) and yes the audio suffers on them. We working on new videos witht he updated equipment at this time.

[@stephenkuschel7459]

I like your video on Goodman Comfort Bridge set-up. Now I have to dial it in on the same equipment with legacy wiring. Thank You, Sunabeach@@johnstonecg

[@billyrayboo7315]

They need to simplify all these different parameters. Wifi blue tooth is 10000 percent worthless to much trouble connecting even when does. There only about 2 things you do on cooling side to change cfm. Only valuable information is being able to read cfm. Also there app has to many problems. Its dependent apon internet connect . If your out in the country forget it. Goodman you need to simplify fan speed with about 4 different parameter make no sense to adjust fan speed by tonage then have adjustment for percentages. Make a true variable and ramp The motor speed up and down on temperature . Just not useer friendly for start up. Dont have all day in a lab to play with fan speed. Forget the wifi to much trouble make a board that more user friendly with real letters and numbers you can read instead of broken Egypt symbols nobody can interpret.

[@johnstonecg]

Sorry to hear about you connectivity issues. The last few years have been incredibly successful for the application with contractors I have worked with and is capable of any needed adjustment. The sensible heat ratio is set by the home and environment and is used to set blower speed, don't overthink it when it comes to a blower setting, if you need to verify it just use the delta of the temperature and humidity. I'm sure the app isn't for everybody but Goodman and Amana and some lower end Daikin product have partnered with Emmerson for production and adopted it for the long run.

[@jonnymakers9560]

@@johnstonecg Contractors do NOT have time nor understanding of all of these parameters. This is way over the top for complications. Again, this is just a thermostat with turn on turn off...this many menu items... is simply ridiculous and never used.

[@johnstonecg]

@@jonnymakers9560 What your explaining is stage up on timing and is no different than the old dip switch for stage 2 delay only you can adjust every bit of it down to the minute. It seems you have not entered the CFS menu and adjusted timing or the CFM settings for the 2 speeds. You are correct it is not a simple drop in and walk away. We are in customers homes for one thing, human comfort and this unit gives us the ability to customize every aspect of operation. We have contractors installing it every day with success but I have to wonder if its not what you wanted why the purchase? I think a review of the installation instructions can clear all the questions or issues you have posted or feel welcome to ask any questions on a specific setting.

[@abdorakeebnaji1527]

Totally I agree with you. They make it so complicated...system should be easy to troubleshooting for any technician without going to call help desk or manual book that is not available most of the time and if it's there is not covering all this info..

[@johnstonecg]

@@abdorakeebnaji1527 I am an independent distributor and not Goodman but all the books are available from many websites or where you purchase equipment. The days of installing a piece of equipment and walking away are over, the ESP must be correct and airflow set to assure proper SHR. With the A2L refrigerants liability will be a factor in the industry and the responsibility of proper working equipment and safe operation on the shoulders of technicians. The HVAC technicians need every tool they can get and equipment like this offers that. None of would buy a TV and bring it home and its 10% smaller than advertised, we wouldn't put up with that and this type of equipment allows us to make a professional installation that meet all factory specifications.