Supermarket PM

[NANOTECH]

Anyone know of a good supermarket refrigeration detailed pm program?

[jpsmith1cm]

Yep.

Check everything.




Gimme a call sometime and we'll talk about it.

[NANOTECH]

Thanks Jp! Just hired in union shop will have 12 stores! Was thinking in terms of frequency on oil changes, f/d changes, contactors, coil cleaning exetra exetra .

[jpsmith1cm]

The key, IMO, is checking things regularly.

Yeah, you gotta clean the condensers regularly and stuff like that, but it is nearly impossible to put a schedule to the rest of it.

racks are such unique animals in the way they run and the way that the compressors cycle that contactor changeouts can't be schedules accurately. I've seen contactors last years and I've seen them burn out in 6 weeks.

Why change oil if it doesn't need changed? Same with driers. Why waste time and money changing a perfectly good filter?


So, check the common stuff on a monthly basis, then there are bigger maintenance items like EMS systems and electrical systems to do annually.

[mseng]

Here is a short list for a rack system with electronic controls
1. Check ALL transducers-calibrate/replace as necessary
2. Check ALL set points and programming
3. Investigate All case temps. And repair any that are NOT REACHING set points
4. Review alarm logs and solve any issues
5. Remove suction filters except for cleanups-replace with felt
6. Check and set flooding valves if necessary
7. Check liquid levels-is sight glass flashing? Repair all leaks
8. Replace liquid line filters over 5 years old and oil filter over 1 year old

[jpsmith1cm]

Here is a short list for a rack system with electronic controls
1. Check ALL transducers-calibrate/replace as necessary
2. Check ALL set points and programming
3. Investigate All case temps. And repair any that are NOT REACHING set points
4. Review alarm logs and solve any issues
5. Remove suction filters except for cleanups-replace with felt
6. Check and set flooding valves if necessary
7. Check liquid levels-is sight glass flashing? Repair all leaks
8. Replace liquid line filters over 5 years old and oil filter over 1 year old

That's a good start.

[jpsmith1cm]

Sorry, I realized that last post made me sound like a jerk.

While sometimes, I WANT to do that, this was not one of them.

That list is a part of a larger PM program that I follow.

I'd rather not share the list in its entirety publicly, but I will give more detailed information and advice to those that I know and trust.

[sprmktrefertech]

NANOTECH,

If you have joined a unionshop and are working in various supermarket chains

you should first speak to your service mgr. As, in my area most maint. Is

described in the contracts as to what is to be performed, usually, there are 3

quarterly and 1 annual. For refrigeration, and an hvac start up in the appropriate season for heat and air.

With that said, you will have,or should have, copies of these which are to be
checked off, or filled in, completed and signed.

Another peice of advice, flag the important things to be replaced, but don't replace all the contactors at once as an example, do it over time.

[engineerdave]

Thanks Jp! Just hired in union shop will have 12 stores! Was thinking in terms of frequency on oil changes, f/d changes, contactors, coil cleaning exetra exetra .

You're getting into murky waters man. Mechanically, there are A LOT of things a guy would be wanting to eyeball on a regular basis. BUT.....

If your employer has 12 stores, you no doubt have a CONTRACT. You'll be wanting to stick to the terms of that contract. Anything else you'd like to look at should be listed on your write-ups as 'recommended', then let your boss or your customer make the call.

I can't even begin to tell you all the poundage I've lost off my backside for stepping outside the guidelines of a contract, regardless the intentions.

Good luck bud.

[pherman]

and leak check, leak check and then leak check again.