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Ok, Thanks! I had it wrong at 1st so needed some input to make sure I got it right.
It is .05"wc.

For Tech support...
I had called the tech support (ABB), get on hold each time for 1 to 1.5hr...

Just keeping this generic, but trying to grasp the concept of scaling a pressure transducer to a vfd.
Both drive and transducer set for 4-20.
The range of the transducer is set 0 to .5"wc

I have...

Off the wall question.
Is the electric BU heat before the coil and possibly energizing when it shouldn't?

I agree with that now, as I re-read it, that it's just an interpretation thing, thanks for another POV on that!
So for a long short across the pins, it initiates then you remove, but many of them...

Check this out from the IOM:

8.4 TEST MODE
The test mode is initiated by shorting the TEST pins. In this mode of operation, the
enable temperature is ignored and all timers are sped up by a...

Thanks for the follow-up guy's.
I've checked several of the thermistors and they all are within range specified in the IOM.

Changed one board with a known good board using existing sensor from...

The defrost board # is 47-102684-14
I have several of these in fairly new multi family that won't defrost.
Refer charge and sensor(s) ok so not the issue.

When checking these it was 30F outside...

After reviewing further and seeing how LARGE the Fieldpiece was, I ordered the Amprobe ACDC 52NAV.
I'm assuming no one here has the 52NAV, so I'll post more info after I have a chance to use check...

Mainly for energy calcs and MQ

Currently been looking at these two meters, mainly for power factor readings.
The amp clamp I use now does everything I need but PF.
Range of use is fractional HP motors up to 75 HP.
Amprobe...

The Engineer spec'd 4-20mA only, however choicer of the Yaskawa or can use the ACH550 as well.

I need a differential PID loop to wire to a Yaskawa V1000 using 4-20mA signal.
I would like to use source mode on the drive to power the pressure transducers using something like the VERIS PX3ULX05....

We would be using Yaskawa V1000 and Veris PX3 (4-20ma) for VFD speed to control space pressure.
But not understanding how to wire two PX3's to one drive for averaging or pressure drop between the...

Good suggestions, so here is more detail.
This is a pressurized stairwell so when there is a fire alarm this provides and escape route.
All other HVAC is shut down and stairwell pressurization is...

Was not sure to post here or in Controls

Need to prove two states on supply fan with belt drive.
1. Motor at full speed, operation is normal.
2. Belt has been lost.

The fire alarm tech needs...

Good suggestion, but probably not since units are only about 6 months old and two different ones at different sites.
Looks like a call into their Tech support will be needed.

Thanks!

Yes it is, but a mirrored image of this.
I have it hooked to a remote stat.

Have a Friedrich PTAC M# PDH07K3SG-A used in a small mechanical room that displays an error code of "A4".

Reviewed the installation instructions and search online, but can't find any mention of...

I work for a smaller company and we sub out all of our control work.
We want to consider in house and have an upcoming very small simple project we can consider to try out.
If stumped one of our...

I will have to call then, Cat5 is from protoscessor to J1. Also tried J2.

Have a CaptiveAire M# A3-IBT-XXX.
Unit has an HMI controller.
Installed protocessor gateway to communicate with existing DDC system via Bacnet MS/TP which is not connected yet.

Uploaded factory...

Thanks, I will try these suggestions and see what happens.

FEC2620-0 (2008 year)
Rev E S/W ver 440

Customer has five of these and two of the controllers have similar issues.
They are controlling AH with VFD and are stand alone.

The point I am...

They made them (vn500 or vn250) easy to use.
I recommend as well.

Ok let's be real about this.

As it is, I can not afford a full Iconnect kit so will have to build it up over time.

I currently have the Testo bluetooth temp/humidity probes and the range is...

With your 56# suction @ 1F SH that's only a 30F line, with a 88F RA.

Find your airflow problem.

Don't use RX-11 flush.
Purge with nitro, install suction and LL HH driers, let in operate and let the driers do the job, then recheck for acid/moisture.

Go to Sporlans website and get info...

I like the "smoke" part...

Great! I truly did not expect this.

Unfortunately it's just now two years old and I have to accept the blame for out of warranty. Purchased from TTT,but they only sell the product, thanks guys or input.

Two years back I purchased the Bluvac micron gauge.
At that time there was the standard and the LTE versions only.

I read and heeded all instructions and post, but could never "trust" it.
I...

Here is their email, they are very responsive.
info@redfishinstruments.com

Here is an email I received from Redfish Instruments.
Nice follow up on their behalf.

Hi Steve,

In fact the next production run will have AC as the default. Like most things, we built the...

We see this all the time,
The info is not complete without RA & SA WB readings and airflow info or statics.

It's just a guess with the posted readings without this info.
The load on the evap...

Been looking at this meter, viewed some videos on it etc.
Looks comparable to my Fluke 116, but with the app and for less $$.
My Fluke 87V sits most the time since its a bit larger and heavier.
...

UEI DTH35 one for each RA and SA and just picked up two Testo wireless smart probes.

You can get your condensing saturation in range, however there is usually low load on the evap and will see this in your readings.
The charging jackets can get you online, however it's a must to go...

If you purchase one of the iconnect kits does the paid version reports become free?

Belts do not stretch in length, the sides wear from moving through the pulleys, basically making them narrower and appearing they have stretched.

Good choice. You won't be disappointed.

Thanks for the replies......

OK not about flashlights, already have a LED Lenser flashlight.

Looking for tried and tested cordless magnetic LED small work light for the short term jobs, preferably rechargeable. Have enough...

Whether you're flat rate or T&M this is where you always have customer signature with price upfront before you do the work, no surprises at the end etc...

If they balk at the quote, then that's...

Are you at elevation or a extremely arid climate or both?

Another reason not to purchase Testo.
They are not rugged for professional daily use.

http://hvac-talk.com/vbb/showthread.php?1745531-Testo-550-digital-gauges (look at post #19)

I had a negative experience with Testo gauges. Bottom line was went through three sets. Two sets were covered under warranty. The 3rd just ended up being a $325.00 loss for me. I suggest against...

For cool only split system get up early and turn on cool, most likely the only one to run.

Sale? I have items in basket (iconnect etc) waiting to check out, also used hvac-talk code. Should I wait or continue with order?

Thank you for the field review. This is the best assessment VS what the manufacturer will tout.
This was the case with the Testo digital gauge when they came out. I went through three sets, two of...