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Just had some thoughts on everyone's ideal oncall schedule?

What do you guys prefer? Week to week, dally rotation etc?

Good morning,

Looking for a programming manual for the vld-362.
Using this controller as a stand alone controller.


Thanks!

Thanks ice!

Anyone?

Need help verifying some line sizing.
Application Beverage/freezer display cases:

Condensers on roof, all 404a

20 tel for each

1st- cooler, evap 34f, 1,194btuh 1/4" liquid and 5/16" suction...

Yes basically you got it. I thought that would be the case but figured I'd ask.. So to confirm btu are btus just that you would have to have larger low temp hp compressors to handle the mt load...

Good afternoon,

I'm trying to understand this situation...
If you have a low-temp rack running at a -20f sst with a capacity of say for example 150,000btuh with a low temp load of 125,000btuh. ...

What do you think the best way to control the head psi on a water cooled chiller (40ton) with a constant flow from the tower?

The chiller has three stages and typically only operates one to two...

Are there any analog ones? Which one would you recommend?

What make/model do you guys use to calculate psi diff/gpm in chilled water/hydronic systems?

Looking to retrofit a R-22 chiller, what would be the recommended replacement?

No issues so far just started the units up and pulled the box down. Rechecking today. It's extremely noisy can't even talk on the phone near it.

Has anyone experienced liquid line noise with these valves? Almost sounds like water running through the liquid line....

Alittle background info.
404a med temp
Two evaps per condenser each...

The unit appears to have ground going back to the panel. The uv sensor and amplifier are new (6-8months old) plus a new heat exchanger. It's a very intermittent issue I suspected a ground problem but...

Has anyone seen an intermittent lockout code 15? Thoughts on what could cause this intermittent issue?

No, cpc e-2 controllers, i want to be able to connect with my laptop. Any thoughts?

Where can you download or purchase the software to connect to e2 controllers?

Yeah basically trying to find a psi washer to clean larger ac units and refrigeration coils. How big of a psi washer would be needed?

What's a good psi washer to clean condenser coils? Ac and refrigeration coils?

Whats the best combustion analyzer for commercial applications?

What type of signal should p1 and p2 recieve?

and keeping the condenser cleaned all the time.

drier frosting over sounds like moisture.

does it have a txv? plugged screen possibly?

i dont like them either. Tech support wants them purposedly undercharged. and for the sh for eexv to be adjusted summer vs. winter. The whole setup is odd.

Anyone work on this type of system before? thoughts?

Does anyone have this meter? thoughts?

Ive got a i/c w/i freezer that always ices up the compressor but the sh is 10 at the evap. thoughts?

to check the bearings you need to loosedn the motor on its track to allow some slack in the belts. Rolling the belts off will strain the bearings or break something. once the belts are off try to...

just took a service call for no heat, took awhile to get to the location only to find out the new rtu was never started up. the gas valve was off and the heat exchanger wasnt burned off. all of this...

Sounds low on refrigerant to me.

thanks for your insight

its ok. i know. anyways. thanks. I did apply for pro membership as well. What is the correct wall to pipe in a multiple evap system with compressor /unloading with the evaporators and compressor...

no i am not a diyer. Im a service tech.

more on how to pipe and layouts

Does anybody know of any good refrigeration piping books?

Is there a good ground to the unit?

idont have m&s at this time. but its electric defrost 2 independent systems. currently 45 min defrosts and defrost term at 50. Each system defrosts right after each other. Should those defrosts be...

What should a typical defrost schedule be for a two system freezer? and what would be a good defrost term temp?

College and trade schools are helpful. They do more than just tell you what a comp. looks like.

Has anybody heard of a low resources alarm? Error code 100?

cant remember exactly the type

sporlan. no, it was the second brand new valve. both valves had the same problem. the valve was sized correctly. with no power to it it should close. but sometimes would stay open.

was this a dumb question?

found solenoid valve sticking open intermittently on a recent call. no power to coil either. any possible reasons?

recently on a call found a solenoid valve sticking open intermittently even with no power to it. any possible reasons?

is it normal for ice buildup on txvs and distrib. tubes in a freezer application?

ori/ord??

its in direct contact in the liquid line. yea not much info on it, i cant seem to find much info. The condensing unit doesnt have much in the way of head psi control other than a thermostat cycling...

sorry no pics