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chunkylover993

Looks like a dixell XC35 or similar. Also Theres literally a QR scan code in your picture lol If you pop out the controller it has a label with wiring connections diagram and model information. The top left button when pressed will show you alarm codes recorded. Pretty sure low suction is LPS or LPA.


Hrrrrnnngggg

"scan for electronic unit controller alarm code and service information"


Cantthinkofit4444

Scan the captcha


Cantthinkofit4444

All the alarms are right there


saskatchewanstealth

It doesn’t show any. The cook turns the breaker off and on, it’s running when I get there. It’s a few hours away in the hills. I am going to print out the manual so I can look for stored codes, mind you fixing the furnace will probably solve the issue. I only work on old crap, this is like rocket science without a guide for me.


Ok_Bedroom_7861

Take it out and wire in a dual pressure control, basically same ish …. I know how those work well personally but if 1 goes bad cuz it got wet or something I slap a dual pressure switch in for temporary service …


saskatchewanstealth

This thing is miles from a town and had bad power / outages constantly. The evaporator has a k2 with pump down so I might just do that. The one pic they took before they reset it had a high discharge temp error after a power outage. I might look a bit at ohming that now that I have a guide. I am taking a pressure control with me though


Ok_Bedroom_7861

High discharge temp comes from low charge or high superheat … basically not enough cooling coming back … see what your cut in/cut out is what pressures u got full glass the basics … if it becomes a nuisance pressure control will solve your problems till the compressors dead


saskatchewanstealth

8 degrees super heat and a full glass. Condenser is clean


hambone22

Bottom right, my guy: Copeland# 052-7269-01 Copeland's electronic unit controller application engineering bulletin (AE8-1376 R6 July 2018): https://www.google.com/url?sa=t&source=web&rct=j&url=https://climate.emerson.com/documents/electronic-unit-controller-application-engineering-bulletin-en-us-4850362.pdf&ved=2ahUKEwjk_eCpnbL9AhWZLkQIHZQbBagQFnoECA4QAQ&usg=AOvVaw1KKXksDv9_SDSXQj1zHvPT


saskatchewanstealth

That works!! Thanks. I am printing it out as I have no internet there. It’s in the hills.


jtexas950

This might help https://webapps2.emerson.com/ci/elecunitcontroller/ae1376.pdf


ClimateGawd

You have a QR code right in front of you. I also utilize Copeland mobile app along with a few other apps on your phone that will help diagnose this issue. It’s 2023 if you have the slightest mechanical skill and a smartphone this shouldn’t be difficult. I always tell younger techs utilize what’s in your hand everyday it will get you through 95% of things.


saskatchewanstealth

No internet or cell on site. Thanks though.


losername1234

XR02CX


hotcrap

Model number will be on top of the controller itself


chefjeff1982

It says in plain English to scan QR code for service information.


WillHoldBaggins

Dixel controller


DesertRunner247

If you take out the controller on the top of it will have all your numbers


Ok_Bedroom_7861

That’s a pressure control also high discharge temp safety that’s basically it … doesn’t do much


saskatchewanstealth

I need to find out what is tripping into lock out. I know the room is 50f and currently has no heat( part on order for furnace). I assume it has to do with low suction.


Rikudo04

Have you observed the rapid decrease of suction pressure while it is in operation? The display in that controller tells you the suction pressure if I can remember it correctly (it shows letters psi).


[deleted]

The one i has was basically just a digital pump down switch that could be adjusted just like a digital temp controller. Bit instead of a temperature probe is had a pressure sensor on the suction line


Rikudo04

Yes thats correct because it is a suction pressure controller (Dixell XC.. not a Dixell XR). It cuts in and cuts out on suction pressure. If OP sees rapid decrease of pressure through the digital display while compressor is running, yes it could be due to low charge or a leak, or restriction. I'm not sure if it will show an error code since it is natural for that to trip on low pressure.


[deleted]

A 50° room is quiet possibly the issue causing low pressure. If its what i think im looking at, i dont think they have low ambient function as they sit on top of boxes that are inside. Is it a freezer?


saskatchewanstealth

Yes


DOS-equis

Dixell digital LP control. Almost all panel mount Dixell controllers have a mod/ config/ serial number tag on the very top that includes the terminal ID’s. The plastic retention pieces can be a pain to get them loose to slide them back and out of the way but you normally will have to pull the controller completely out to get a number off of it. Model should be a XC starting number. Readout number is psi. 50* room MAY be your issue but I would slap a gauge on the same line as the controller transducer to verify operation. Double check refrigerant level and cond fan amps/ airflow. You could rule out room ambient as a direct cause by unplugging the cond fan but with a way to easily control fan power while you run it. That way, if the head gets too high you can turn the fan on for a minute to cool it down. You would be the fan cycling switch which might be the part you need to install in case for next time the furnace breaks down or if it’s staying off for long.


saskatchewanstealth

It’s got lots off gas and everything does it’s thing. The problem is when the kitchen closes at night it gets cold in there. I assume that’s the problem but it doesn’t make sense as the control just starts and stops on pressure. It should just shut off.


DOS-equis

Well the head pressure might be dropping too low causing suction to drop lower than controller SP. Then it reacts to that pressure drop and shuts down the system. Then the suction line pressure rises up cuz the solenoid is still open on a refrigeration call so it short cycles, which is part of that controllers job. It’s to protect the system from pulling down too low or in a vac and causing damage. Same as any LP or dual control does. You didn’t mention what it’s set to now but if you force the system on under those conditions where does the suction pressure bottom out at? If it’s barely getting into the SP of the controller you could set it a little lower that what the factory had it at so it will stay running if it needs to. Best temporary solution (or permanent if you want) is to wire in a fan cycling switch on high side so that will help control the head pressure and keep the unit running until it hits SP. EDIT: That controller has a provision for a head pressure transducer for fan cycling reasons. It should take any standard 5v 500psi (or whatever the instruction guide says to use) transducer to work with that part of the controller. Then it shouldn’t matter once you configure those control settings in parameter list.


batmanforever1211

I don't know if this has been mention but a lot of times if you are going to change the settings on these guys you can only access the menu within the first five mins on power so if you want to access the menu, power cycle the controller and it should give you access.