we used to have to check each case temp and rack pressures now we go on the computer and look at every thing That control system even calls your cell or computer if something is not right. Nice to set coil td and not have to take gages or temp probe out of the truck. The new controls will not brake the bank no more frozen food case full of product that the juice is liquid.
Wow!!! who would have thought too much air flow on a refer case. I usually just check to see if the coils frozen, motor is working and spinning the right way. Nice find though and glad you shared it with us. I'll have to keep it in mind. May need it someday.
Yes, the store has the ability to switch from med to low at will with a key switch. They only do so for a week at the holidays, though. To date, no more complaints on the case.
As far as the motors are concerned, this particular manufacturer (who has reps on this site so I'm not naming names) uses a unitary motor design. Basket, motor and blade are one large assembly. Can't remove the blade, so you aren't likely to swap in the wrong part. The parts in place were OEM, so you do the math.
Oh, yeah, due to the age of the case, the manufacturer went back on the verbal agreement to send me new motors and the operation of the system remains unchanged as the customer has also refused to pay for the parts.
As far as the company we inherited this mess from......... I love taking over their accounts. They always lead to good, educational problems like this.
I learned a lot from this thread. There is a company that keeps coming to the market I work at selling "energy rebates" for refrigeration. We've actually done quite a bit of business with them--got a bunch of LEDs installed in glass door cases, floating head pressure controls, etc. for great price--but now they want me to buy and install ECM motors for all of our cases and walk ins. Keep in mind these guys are NOT refrieration mechanics and can be kind of pushy salespeople. So I was like, "uhh, guys...I think these fans need to be spec'd just right for the cases. Like, CFM and the like?" They just dismissed me. I was like, well, can you supply me with data that the rpms of the motors will be exactly the same? They couldn't, so I scrapped the program.