I believe it only does that after a power loss, not every time thermostat calls for cooling. It's a safety built in to the Emerson controller. I definitely scratched my head the first time I saw it a few years back. Appreciate your videos brother! Keep up the good work.
Jeez your the man Dave just installed a freezer and encountered same thing and thought the low pressure transducer was wacky but noticed it did it everytime I cycled the disco. Thanks for sharing.
I know nothing about a/c, but owned a rheem scroll condensing unit for 20 years. Worked like a dog all those years, with no problems. It finally blew up a couple days ago.
Good to know, that's for sure. Trying to get management to change out a 25 year old Bohn water cooled system (R502), and was looking into the scroll, but they were 3 HP and up, and this is a 2 HP set up, so no dry heave for me! Thanks for posting, Dave.
Damn Dave I've installed 3 of those Copeland scroll's, so far and they all did the same thing they started fine after the 3rd time, and I've wanted to ask you if you were dealing with the same issue, but I guess I wasn't the only one!
Amigo I have a question hope you can reply im working with a similar condensing unit . New condensing for a walk inn cooler. Im using 407c what would be the right set up cut inn and cut out on the Emerson control. Right now they’re set at cut inn 65 and cut out 25 but I feel like compressor keeps shirty cycling
I bumped into one of these today and Ill give you guys a heads-up... carry a black tarp to put over your head or you'll never see the display. Unless your inside or at night.....
I have seen this feature on other units. The purpose is to reduce the crankcase pressure prior to starting. It is a safety feature to prevent damage from pumping liquid.
+OcRefrigeration,Hvac & Electrical. It's also for the situation where there's a power outage and the crankcase heater hasn't been on. The unit could start up with liquid refrigerant in the compressor oil.
That unit didn't appear to have a crankcase heater. Manufactures think scrolls are so tough. No need for cch. Just as long as they never run in a vacuum they are bulletproof.
That's crazy shank what dose the factory say about that? Is the transducer cutting out the comp I know the controller has the ultimate say so but that's funky?
Thanks for making this video ! I have not installed any of these type of scroll units yet, So thanks for the heads up. I Would think the Start up instructions would Mention this Weird unit start up scenario. Maybe if u can find the paperwork in the Vangina , that would make a good video of instruction paperwork Notifications.
The Vangina has a lot of stories too tell. Some should not be shared, lol. But thanks for the video on that set up. I am commenting on a 9 month post. Beat me up in it.