Search:

Is it set up as CV or VAV? It makes a difference.

VERIABLE?????????????????????????????????????? What?????? spell check....... Your question makes no sense.

What is the issue?What brand unit?

reversing valve could be the problem but, probably the compressor

You tell the customer the the situation. Give them the option. You have contacted the dealer with no luck so far. I guarantee anything from BAC is usually twice as much money as anything you can get...

Check out this site for Trane info http://hvac.amickracing.com/RTU%20Training/Trane%20RTU%20info/

I agree. Take it to your belimo dealer and toss it on the counter. They will fix you up with linkage ,switches etc.

Dupont M099. You loose capacity. If the unit is undersized,dont use it. Us on exv,txv system. Replace any rubber o rings.

I just attended a Dupont refrigerant seminar. You can not mix. You can top off M099,a certain percent. I can't remember what percent (m099) off the top of my head.

Meg +250 good. Meg will show moisture of system and integrity of motor. If moisture on compressor body at terminals meg can read bad. IOL- amps? volts? load? head pressure? Connections?Contactor?

http://www.gordonpiattparts.com/manuals.htm Manuals on line CiCi boiler..Gordon Piatt parts rep. John Zink bought Gordon Piatt

Varitrane VAV box. Heating fan off and on. Electric heat air flow switch was not making. Replaced filter.Pulled and cleaned blower. Heat works now when fan is running, But, fan starts and stops...

I have a fire tube boiler with one tube leaking. Boiler inspector noticed.The boilers are over 30 yrs old and are going to be replaced next year.I have a concern with plugging. If water enters the...

DONE!!!!!!!!!.Froze my A________ off! -3 deg 20 ft in air. LIVIN THE DREAM!Turbo torch to cut channels and holes in ice because pan was overflowing with ice up into the coil. Moved hose around...

Looking for ideas to thaw ice and replace a defective drain pan heater. Coil 20 ft in air. Pan a solid block of ice about 10ft long x 1ftwide x 6in deep . 0deg in room/warehouse. I need to get old...

Thanks for the info EngineerDave

It looks as though the float on the seperator is hanging up and not allowing the oil to go to the oil receiver. Quoted customer new float assembly,henry oil level control for compressors and oil...

All electric aside...make sure you are using a ball bearing motor. A sleave bearing will fail.

Central Ohio

I would say the suction line is 100-125ft insulated untill it gets to the accumalator. Accumalator is a ball of ice.The compressor that has failed is thr first one after the accumalator. I will check...

OK then 20-25 deg superheat at compressor. I am confused at the 6 deg at the evaps than was recommended and then 20-25 at the compressor. I guess maybe I should check the total tonnage of the...

I am getting replies from all of you so fast I am falling behind on your replies. I noticed someone said 6 degrees of superheat on the evaps.

No less than 20 degrees superheat? So like 10-15 Just want to make sure on the same page

The condensers looked clean. It is mounted right above the "shack" the compressors are in. Some genius mounted them there so its like working on an airplane with the props running. I did notice that...

The cannister I am talking about is on the side of each compressor. It has a sight glass and an adjustment to control the oil level. It mounts on the compressor where there is normally a sight glass....