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Check your email buddy.

Yes, you are correct, it is a VAV.
My SFS.S is set at NO
My SFS.M is set at 0

I have a Carrier 48AKD060 and u cannot get the econ working. I have verified my parameters with tech support. The main base board was replaced due to the eeprom failing. The run status shows the...

I'm a big of Nylog, its like snot. It's like a heavy-duty superglue which stays flexible. Leak lock will eventually crack especially ifused in close proximity to compressors (vibration).

Absolutely, you can use whatever air you want. You wouldn't want to use too high of an air pressure (20-25 psi should be sufficient).

It's usually the tubing, not the sensor. Most of the time people will install a "T" and put a rubber plug over the "T" port, these tend to dry rot and crack. If your lines are good, then check the...

neilh20man, you have to update your info and include an email address in it. You will be unable to post your email in the thread. I will send the info, but please add your email into your profile.

I'm trying to locate the manual for this machine and am having no luck on-line. To top it off their office is closed now. The mod# is: TS015MR404A2. I'm specifically looking for its clearances. I...

Wireman3736 check your email, I just sent it to you. Take care.

ZeroCool, what I mean by tested was I disabled the economizer until the unit got up and running (90% or better on the sf VFD) and then enabled the economizer again. It seems like the first time the...

Okay everything was fine until two days ago, unit was down again. I bumped up the VFD speed and decreased its accel time to ensure the switch makes within the 40 sec time limit. Today the unit is...

You want the box to fail to cooling:
1) Set damper N.O.
2) You want a N.C. valve

This will give you fail-safe to cooling.

Now with the R.A. stat, as you call for heat the pressure will be...

Thanks slctech, it does have vfd's for each fan. I'll look into the aux switch and apply for Pro Status.

The last couple days the unit has been having an alarm due to the EF not starting (failure). The wiring diagrams are illegible. If you kill power it will start and run fine until the next day. I...

Thanks catalina_mike, it was roughly a 15' run so I reused the existing wire and the baud rate is 38.4. Thank you.

45 it definitely reads in the program, going to get a RSPRO now. Baud rate set and jumper moved. Thanks for the help guys!

Got it thanks! Without replacing the stat,will it still function but only the LCD won't work? Or will it read incorrectly?

Thanks Kontrol, one more question: What do you do with the UNET wiring?
The controller is already emulated.

I am replacing a U341+ controller with a ZN341+ controller. Will the LSPRO stat work? The new controller has a RNET which has a 12V terminal, but the LSPRO has a LS5V terminal. I am assuming...

picnik, thanks, you weren't kidding! Should be a huge help.
Mr. Greenjeans, thank you also for the missing piece!

That would be awesome! I'll have to do it after work and when I get home, the internet on my phone doesn't let me edit my own profile. Thank you!

I've inherited a building with some older Staefa stand alone controls and can't find anything on the web to help me decipher how they operate. I mean I get the gist, MA controller, min OA, DX...

BTW, It's a brand new actuator.

Just dealt with an Invensys TB158-017 stat controlling 2 3-wire floating actuators and am having a problem. When I call for cooling the chwv opens and the hwv closes. Great, right. When I call for...

Sorry, reading the correct temperature

Sounds like the r/c is not properly calibrated or have you checked to make sure the transmitter line is hooked up and reasons the correct temperature?

First time running into this problem was last month. Didn't know they sell an "optional" snow kit. These units are ontop of a roof and should be somewhat weatherproof, ya think.

That's not a bad idea koolkahuna, thanks.

thanks Tommy, the fridge was right against the wall with air being sucked through the bottom front and being discharged outta the bottom back. These fridges are supposed to be able to be mounted...

Yesterday I worked on a Follet mod# Ref5. The fridge just wasn't keeping temp (range set between 3-8 degrees Celsius). The condenser was clean and I inspected for any trace signs of oil. This...

Is there a control valve (what voltage), how is it piped (bypass loop or not)? The first thing I would consider is a dry bulb stat which could be wired to energize a relay to turn the pump on (or...

Thank you for the link. Unfortunately I'm looking for infor on their stand alone controllers.

Does anyone have any literature on the York Meridian control system. First time I've seen it is today and the customer has a vav box with electric reheat controller by this. I'm pretty decent with...

the way to calibrate a reciever-controller is the same way asa thermostat. monitor the branch line (output pressure to the controlled device) while monitoring your sensor input. A mixed air...

did you need just the info on the cut sheets, ie calibration screw, or were asking how to?

ascj, truthfully i wouldn't know where to begin on sizing them based solely on comparision alone. What would I need to know exactly to do this right?

Hello, I was hoping someone could help me out with this. I've got an old York RTU (from 1984, I believe) and the spring isolators are bad. I have an old manual for the unit with the part numbers of...