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Yes the exterior is all 2x6.

I removed the little triangle plywood on the right side of where I removed the cedar siding. Now I can see for sure that there is a rim joist on the west side. And the...

Now you have me second guessing what I was thinking earlier today. If you look at the middle picture I posted above and imagine where the foam board would be just behind the brick it still leaves...

House built in 1990. No engineered joists.

I removed the soffit vent again today. It was several years ago when I looked before. I think I figured it out this time. I can see the bat insulation...

I also see no need for soffit vents in the little overhang, I plan to use the none vented Hardie soffit panel on that area. That brings up another question, is the vented Hardie soffit panel ok? Does...

The little overhang you see on the right side is just for looks. I have taken a soffit vent off so I could look inside. The 2nd floor joist run E/W. It's very hard to tell but I can see insulation in...

Yes I know the gap is suppose to be behind the brick and yes the 2nd floor protrudes over the first floor so the lap siding fits over the brick.

The walls are 6" with the type of white insulation...

I have spent many hours sealing any duct work that I can access, exterior wall outlets and light switches, canned lights on top floor, sliding doors, etc.

There are still a few places where I am...

You will like that one, very easy and accurate. Just keep it fairly level. You will have to use both ports but only need one hose. No fittings needed on the test end, just insert hose in a hole the...

No furnace, just the AHU which is on it's own 220v circuit which in this case is fed from a 125A sub panel. The only other load on this panel is the 2nd HVAC system which is identical except in...

With the correct fluid it should be fine. The important part is inserting the tube in the right location(s).

Air handler is a FE4AN____ with 15kw aux heat. KFCEH____ can't remember the exact model #'s. All communicating Infinity stuff.

It's so random? Can't think of any electrical changes or anything...

No one has experienced interference?

I don't know that I have but it's something I would like to rule out.

I get very random communication faults. When it does happen it might rack up 4 or 5...

Is RF interference a possibilty? If so what problems have been seen?

Thanks

Yes if needed but if I am careful it is rarely needed.

Taping the joints is a waste of time. It won't hold.

In my experience when I have this problem I have a leak and it has never been the micron sensor.

I use a YJ 93860 dual ball vl evac...

Mine works fine. It says MAC Tools but no doubt it is a rebranded TIF.

Hard to get the camera to focus but hope the pics help.

If you spring for a DC head and mount them on a good 4 port manifold I would guess you will use it for more than calibrating, I know I would.

How much do you use the temp scales on your current...

All 5 valve assemblies are the same, just 3 different sizes.

You have to be very careful when placing a clamp on the pipe. Is the pipe real clean where the thermocouple comes in contact with it? The sun or even a stiff breeze can effect the thermocouple in a...

The biggest problem I see with calibrating bourdon tube gauges is repeatability. Most manifold gauges are exposed to both pressure and vacuum. On the test bench I can calibrate one at 250 psig and...

Not a dead weight tester but I can see how the scale beam could make someone think it is.

It is a Gage Scale made by the Crosby Steam Gage Co and Crosby spelled it gage not gauge.

Yes it was...

If he works in a calibration lab then he no doubt has every device known to man and knows what he is doing!

I seriously doubt if anyone can identify this device?? (pic attached)

Curious what he uses to test your manifold? Not surprised that he finds them accurate.

It's been a long time now since I read the specs on the DigiCool but I know I was impressed at the time and...

The customer is already paying for accurate professional work and both the owner and tech should be committed to providing it. If the owner would consider the time saved and reduced call backs versus...

I do a lot of instrument calibration work and my experience tells me that even the best bourdon tube type guages are marginally accurate at best. I notice a lot of guys like to "Zero" their guages. I...

Yes it is the bathroom but it is vacant and has not been used in months. The register is sealed at the ceiling penetration very well. (I sealed them all along with the canned lights)

BUT....
...

It is one of if not the shortest supply run.

Am I thinking wrong that any leak that would cause this would have to be in the return? The insulation is mostly equal.

Leaks?? One of the first...

My upper level systems ducts are in the attic. I noticed just today that one and only one of the ceiling supply registers is dripping a lot of condensation.

It is almost 100 outside and humid...

It does happen just not very often. I have a friend that was doing construction elec work at a Post Office. He layed a drill bit on top of a 480v breaker box. It fell thru a knock-out that was...

Curious as to what the arc flash incident rate is in the HVACR field in the US?

Does anyone require lock/out-tag/out in residential work? Or is this something you only see when working in larger...

I am curious if the Pro's here consider my systems oversized with what data I can give?

The local design temp is 93 deg.

With the run times that have acumulated do date it looks like about 85%...

Yes the UI tracks run time, starts, etc.

I might also add that I have the dehumidify function set to off and air flow set on eff. The long run times on low sp seems to handle the humidity without...

4600 sq ft finished area on 3 levels. Well insulated 6" walls and mostly brick, but lots of windows.

Original systems were 2T and 3T dual fuel. They struggled to maintain 75 deg and RH was often...

We make no effort to control demand other than I request that they don't dry clothes while cooking but it happens anyway. Trying to control everything all month might end up saving only 5.00, so we...

I am not sure what you mean by a "demand controller"? Some utilities have a load control system that allows the utility co to control how long each hour your AC/HP runs or other appliances. I don't...

Log in on this computer and the lost post shows up. I need to quit doing anything but reading at 5AM.

My Ver 12 doesn't track cycles or run times either. My original Ver 10 counted the first 6 cycles of 1st stage aux heat and 2 cycles of 2nd stage and 1 of 3rd stage and the run times then it never...

I replied to this early this morning but I must have still been asleep because I don't see it now.

My original UI counted the cycles and run times for a few days and then never changed again. When...

Yes both of my systems have Intelligent Heat Capable units. One is a KFCEH3001F15 15KW so its 5, 10, or 15KW and the other is a KFCEH2901N09 9KW so its 3, 6, or 9KW.

Both work perfectly on...

The lack of model/serial numbers on the UI will not effect the operation. The model plug is the key and it identified it correctly.

Which version UI do you have? I have one Ver 10 and one Ver 12....

So the 5800 does have a defrost function. The one I had before had a digital control and I remember there were a couple DIP switch settings but I don't remember what they were for. It was the top of...

My wife has rented a small (400 sq ft) office space and the only heat it ever had is a ventless propane heater. It is too air tight in my opinion for a ventless heater. There is currently a window...

The wheat state!

Everyone should always check to see if there are any rate breaks for going total elec or if other favorable rate structures are available.

I am on a demand rate which meters...

When figuring my cost per KWH I just take the total bill and divide it by the total KWH's used. That way it includes all the taxes, fees, demand charge, and all the other misc charges. The total is...

What kind of controls are you using on these systems? I don't think any true dual fuel control will allow the HP to continue to run while the furnance is running except during a defrost which is not...

Isn't there a major factor missing in this discussion? Cost of operation? Or economic balance point. With the gas prices of the last several years I don't want my HP to ever be locked out, even at -5...

Yes it was the A&B or Gr&Yel wires I was talking about as the C&D or W&R had to be ok to power it up. And the data wires were correct.

The Invaild Model Plug code #25 can be cleared. It showed 2...

I seem to have a little of more than one problem but not a lot of either!

The size and type unit it reads fine but not the model/serial numbers. It does give the Invalid Model Plug error but does...

It does not show a fault code at the cond unit but does say Error code #25 Invalid Model Plug for the HP on the User Interface.

It does indentify it as a 2 stage 36k HP but the model and serial...

The static was good, about .4 @ 1050 CFM.

I had sent the installer an email before I posted here but I already knew he was busy today and he does not claim to be an Infinity guru although he is by...