Maintenance of supermarket equipment

[ronsin1]

Hi All,

New to this forum and also new to the supermarket industry just looking for some advice.

I lookfor some maintenance procedures for supermarket refrigeration systems i.e condensers and also condenser rack systems I want to make sure our service technicians are doing this properly

Thanks in advance
Ronald

[mr cool]

where do we begin, do you want a full service or minimal cost/ min work proceedure. i would clean all oil strainers on all comps( recips only) drop the oil sep and clean the float assy. change the driers and the oil clean condensers check all electrical terminations and correct function of all control and saftey devices fully leak test the system and then clean and de grease the plant as a clean system looks like it has been serviced v well. hope this helps mr cool ps most engineers know what needs to be done just make sure they do it! mr cool

[spr2003]

You must find the maintenance schedule on the documentation after the plant. The last part of the manufacturer's manual, must talk about cleaning and maintenance.
This following most of the rules in matter of safety and quality controls. Local rules after security pressure valves and gas or liquid vessels.

[Gary]

You may want to start here:

http://www.refrigeration-engineer.co...ad.php?t=19701

Being that your primary concern is maintenance, the most important concept for you to master is delta-T's (dT) as these tell you about air and water flows.

[Sam Granger]

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Applications

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[andyclaus26]

agree with the above, but include checking eff. on all recips, tag amp draw (this way a less experienced tech won't think a comp pulling 20 amps is fine, when it should be pulling 25 due to stuck unloader or valve plate going bad), do an acid test on oil, check and tag hold back, and a9 valves' settings, check subcooler and desuperheater ops...