TecTube is the exclusive channel for Temperature Equipment Corporation (TEC) and National Excelsior Company (NEC) focusing on educational content to benefit HVAC technicians, engineers, comfort advisers, and anyone part of the complex and ever evolving HVAC industry. Our feature videos are intended to be short segments of content to supplement our longer duration webinars, traditional classroom, and lab style training options.
TEC is a wholesale HVAC distribution company headquartered in Lansing, IL and servicing Illinois, Indiana, Wisconsin, Minnesota, Michigan, Missouri, and Kansas. We are a one-stop-shop for all HVAC needs from residential to commercial/industrial including equipment, controls, parts and supplies. TEC is your high efficiency expert, with the lowest energy consumption equipment in the industry…. condensing units, furnaces, RTUs, chillers, VRF, ERVs, and more. We also do business as National Excelsior Company in some locations.
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VAV damper boxes with fans in series... I wonder if these could borderline work as a fan coil unit
This is the best demonstration I have seen to explain the ERV function. I was surprised at how well the ERV was able to transfer temperature in the demo. I wonder if you could generate some steam at the outside air input and also see how well the humidity would be transferred using RH gauges in each chamber as well as thermometers. Also, it would be interesting to compare the efficiency difference from the rotating membrane compared to the usual home module.
There is plenty of data to illustrate the efficiency different between an enthalpy wheel and fixed plates. Put wheels are only for commercial projects. No one makes a wheel small enough for residential.
Greenspeed 26SEER IS Veriable Modulating Speed
This guy's videos would be way better if he would change the angle of his lighting so that he doesn't have the glare off his gauges beaming straight into his viewers' eyes. What a lack of foresight over a simple but important thing. Makes me question other things.
Thanks that’s what I was looking for
Wonderful video saved me $350
V coils are garbage.
We have had great success with V coils since we used them during the pre-production phase and then again when they officially hit the market. We have literally used thousands in our market. We have witnessed improved airflow and lower warranty claims. At the risk of opening Pandora's Box, what bad experience did you have?
@@TECTubefilms drain pans are too narrow and easily plug up unlike a conventional “A” coil pan. Air flow good but very little difference between “A” and “V”coils. For the potential clogged pan and plugged micro channels I much rather have an “A” coil.
@@crinklyten2152 We also prefer A coils! The V coil is best used when height is an issue.
how to find the battery
There is no battery. The stat is powered by 24VAC from the equipment transformer on the C and D wires.
These coils ice up when previous systems did not. Like for like capacity and the low side is far too low for 410a. Temperature drops are way too high. Multiple examples of exactly what I have stated from multiple contractors.
Not sure what is going on in your part of the country, but we have had very good feedback in the Midwest (Chicago, Minneapolis, etc). We have a lotless problem jobs as compared to N coils which have always seemed to exaggerate airflow issues when the furnace is oversized for the duct (which is most projects). The biggest complaint that we get is that these coils are not AHRI rated with inverter heat pumps yet.
Yours is the most comprehensive presentation I've viewed. Thank you!
How about the scenario with dehum and vent/damper connected to the same EIM?
What is an EIM?
ecobee only supports one misc accessory at a time so you can either have a dehumidifer, a vent damper, a humidifier, or a dehum sequence of an air handler, but not two of those directly wired to ecobee on the same system.
@@TECTubefilms equipment interface module
@@vijayrana9090 That is a Honeywell product that only works with Honeywell stats. It is used to have a wireless stat communicate to an EIM and then that EIM is hardwired to the equipment.
@@TECTubefilms got it. I am already bypassing the eim so as to use ecobee. My main issue is to connect dehum and vent as accessories. Now I know that I can only ise one at a time. How about using aprilaire 100 dehum? I think it does not need vent to be wired to the thermostat. Any thoughts/suggeations?
•How would you address duct sizing when adding a dehumidifier to a suuply plenum, per Santa Fe’s install manual. This method creates high static when the unit and dehumidifier are running.
We have never heard of Sante Fe but in either case, we have also never added a dehumidifier to a supply duct. It is not needed in our Midwest climate if A/C is sized and staged properly. If the project is South of ASHRAE's warm-humid line on the map, then things are probably pretty different.
Were can I find that slide show?
I saw a recent video suggesting the condenser valve torque specs were wrong and his service calls on the Flexx units were leaking with the too low torque specs. Any leaking at the valve?
We are not exactly sure what you are referring to, but the torque specs in the instructions for the flare nuts are in N-m and most people use a torque wrench measuring in ft-lb. Maybe the person you are talking about didn't realize this difference in units when they set their wrench. In this example, it would cause overtightening.
thank you
Hello, I hope this comment finds you well. I want to know if with a Modbust RTU to Modbus TCP/IP device I can access the control board and read the parameters
Could you wire the condenser as a straight cool condenser?
yes
Good stuff. I think my unit was set up correctly by the HVAC installer but the outside temperature display is consistently wrong. It does not go above 66 degrees F, for example. Is this something that can be fixed, or is it necessary? If it's just information and not affecting the AC operation, I am okay with the incorrect display.
It does matter and not just for display purposes. What is the actual temp you are measuring... at the exact same location of this sensor... when the stat says 66F? The sensor is just a 10k Type II thermistor so it can be troubleshot with an electrical meter. That will allow you to determine if the sensor is an issue, the board it is wired to, or the stat.
@@TECTubefilms Thanks very much for your reply. The temperature difference is about 20 to 30 degrees on the display versus the outside. I am not sure of the location of the sensor but since you answered my main question -- the value of the reading does matter to the operation of the unit -- I will get a technician to track this down on my Tempstar variable speed system.
@@maxliker The sensor is a little probe sticking out the bottom of the electrical section. It is black and covered in an epoxy. If it is reading high during the daytime only, it is likely that the sun is directly shinning on that section of the unit and heating it. If is wrong all the time, then something is broke (sensor, outdoor board, or stat). If it is wrong randomly, then the issue might be the wire or wire termination.
Great Video! Thanks for the digestible breakdown!
Seriously you are the excellence gorgeous and adorable man thanks a lot🎉🎉🎉
Using a portable aircon... ... I can draw in fresh (even with secondhand smoke) by the huge inward pressure which will be sucked in to cool down the condenser, dirty fresh air directed to the aircon by DIY pipe... .. while part of the sucked in air will be pulled into a IKEA Fornuftiq... ... position at the top of the portable aircon (since ash and secondhand smoke are usually 'heavier' air portion unlikely to escape the air stream inertia) to be blown through the aluminium filters and be blown cold air into the room... ... then the additional air sucked in by both Fornuftig and portable aircon will be forced out of the room by the gaps... ... Don't even need a fan... ... All we need is a gap at the other end of the room... ... Hmmm... ... The aircon will dehumidify the room as well. So I can finally use wood funiture. Now the set up shows a humidity of 59% very close to Scanteak showroom's 50% and temperature at 27.7degrees, which will need some work. Mean I have to redesign the setup... ... Hee hee hee... ... ... Before this, it is always above 71 to 75% and reaching 83% humidity. No way I can see a 50++% humidity. Good... ... ... I must do the upgrade to the room. A portable aircon is a bliss... .... It can be used to play fresh air ventilation unit which normal cost tens of thousands. But a portable aircon is only S$699... ... getting Fornufitig and a strong fan is still below S$1000. Good. Hee hee hee hee hee... ... Let's redo a little and boost up the coldness, and it will be perfect. Hahahahahahahahahahahahahaha... ... Hahahahahahahahahahahahahaha... ... Kinda cheap.
It is 2024, all info needs to be in the phone app. If Ecobee requires a website login then it is too bad
Everything on this website is also on the app EXCEPT these reports. View large data graphs on a small mobile screen doesn't make a lot of sense to either ecobee or us. We much prefer it on a laptop or larger screen.
Bro its easer to do it old school I have it and don’t like it experience and work better than your shit
What brand and model of measurement device are you using?
This is just the video from Ecobee
Yes ecobee made this video
I learned a lot!!!
Do you have to use a filter drier when recovering refrigerant?
What is best Wi-Fi thermostat to use with Gree Flexx?
We are fans of ecobee for all types of equipment, not just FLEXX. But you can use any stat you want that supports heat pumps (or dual fuel heat pumps if you plan to combine with a gas furnace).
Can’t see shit
Thanks. DTE install this for me in the winter time when it was time to use the AC it didn’t work. I waited two weeks for technician to come out through the protection plan and he spent two hours trying to figure out why it didn’t work. He kept saying it was the thermostat. I ran across this video and I noticed that a wire was in the wrong place. When he got here, the heat worked when he got done nothing worked so I went online and saw your video and I fixed it myself.
And do you have any videos on system with bacnet ?
kzread.info/dash/bejne/k4t20NiOcq7Hf5c.htmlsi=GXWvBV3GnXc37Fkc kzread.info/dash/bejne/nZN8w82IqN3TYLw.htmlsi=cPGaCni-C0bYKqLc kzread.info/dash/bejne/pWicm7h-Ysu_fps.htmlsi=r5HfF9Ih7e3wCO1D
I greatly appreciate it thank you. I’m the on call tech and ran into one of these and was a little lost of soi.
The inner edge of the v-belt grooves of the motor sheave and flywheel should be aligned. Since there is most likely a difference in the thickness of the outer edge of the motor sheave and the flywheel, this method is incorrect in most circumstances.
Blue collar Robbie Lawler
Sometimes you need to have a stage name so you can live your best HVAC life the rest of the year without all those crazy MMA fans
Awesome video!
You have no sound on your KZread movie
It was a live broadcast on Zoom and also pushed to KZread. Because it was live there is two and half minutes on the recording prior to the actual event starting. If you fast forward to 2:40, that is when it starts. We will try to delete the first 2 minutes if KZread will let us. Thanks.
You are the man!
Very nice so simple compared to the others on KZread, you can really think with !
Great Tutorial!
Great Video, Easy to follow, Good Instructor
I first watched this in the early 90's as a mechanical engineer designing air distribution systems. SMACNA has been the single most helpful resource for my knowledge growth. Well maybe second to my experience as a tin knocker before college.
Thanks for the video it helped. I did a ecobee smart thermostat enhanced, and when I wire it without the extender, there was no because my customer had a 4 wire. That wasn’t wired up on a common. So your video was helpful but once I connected it wired it up correctly the thermostat didn’t have the option for cooling under the mode setting. I’ll look at some threads went through the settings. Accidentally selected reconfigure the thermostat did its thing. Asked if I use the extender kit I selected yes. Asked if I wired it up using the PEK . I said yes, it did it again and then it worked
Great video, thank you. Does the indoor coil have a txv? Or is the metering device for heating and cooling located in the outdoor unit? I’m going to be putting a gree flex outdoor unit with an ICP electric air handler. The AH has a coil with a txv installed ready. Just wondering if I need to take out the indoor txv. Thanks!
Indoor coil has/needs a TXV for cooling mode. Do NOT remove the ICP fan coil's TXV. The outdoor unit has EXVs for heating mode like all heat pumps.
Thank you sir! You explained that very well. I'm a 3rd year service plumbing apprentice and would love to learn more about hydronics. I run into combi boilers a lot in Western NC and it always makes me nervous doing anything with the plumbing side. I'm definitely going to check out some of your other videos. Thanks again!
10 degrees of subcooling in general ,with you don't have the data of what your system is.
I forgot I subscribe to this channel what’s up Neil!!!!!
Audio cuts out about a minute into the video
Thx for catching that missing minute of audio. We will re-post.
Can this system work with a gas furnace as a hybrid (dual fuel) set up
Yes, it was installed in this video as a dual-fuel system with a gas furnace.
Not trying to sound rude, but did you watch the video? It covers wiring to engage furnace during defrost, it covers balance point settings, and Ryan states "dual-fuel" at multiple points in the video.
What capacity do I need to cool a humid 1000 square foot house?
ERVs do not cool buildings, nor do they dehumidify them. The only thing they can do to help with heating and cooling is use your exhaust air to pre-cool and pre-dehumidify your ventilation air coming. The amount of ventilation air you need to bring in... and hence how large of an ERV you need... is based on your local building code. Where we are based a 1,000 ft2 single family home with 2-3 bedrooms would require only 45 CFM of fresh air so you would need the smallest ERV you can find. You are allowed to bring in extra outside air if you want to further improve ventilation, but it will equate to more compressor based cooling and dehumidification needing to maintain comfort than a smaller ERV.
Got my hoes ready to go 😂
im currently having issues with the initial startup, it does not find the indoor unit please help!!
Make sure you are wiring to the green plug and not to the thermostat wiring strip. Possible issues are the indoor unit circuit board, the stat, or the wiring. The wiring is the easiest to troubleshoot. Remove the outdoor unit wiring and see if it works without that connected. If not, take the thermostat to the indoor unit and wire them to together with a brand new 3 foot wire cable. You can also use your electrical meter to test DC voltages on Dx+ and Dx-. When trying to communicate, you should see low voltages (say 0.5 to 5 vdc) and they should be constantly fluctuating.