Always start with the top open so start with it wider and then tighten to restrict to increase it. Here's where we get down to the nitty-gritty here, so you carefully adjust the restriction of the charging jacket until the difference between the high side and the low side pressures is between 160 psi G in 220. Psi G, all right! So, as I mention all the time we're from Florida, so in Florida it doesn't get that cold that often, but when it does get cold and when you're working on straight cool equipment, especially you run into this problem of so you're, doing a maintenance, and you want To check and make sure that the equipment's working but you're outside of where the manufacturer says that you should operate in cooling mode, which is generally you get below 65 degrees, outdoor temperature becomes really difficult. It's a couple.

Strategies that are used have been used for a long time using cardboard to block off the condenser problem with. That is that you know who has that much cardboard and it looks kind of weird if the customer is looking at you're doing it, and you also get kind of hot and cool spots in the coil, because you're only blocking off part of it. So a better solution when you run into this application, especially with TX fees, is the field piece low ambient charging jacket. So you can see it says: they're charged a TXV system in any weather, so specifically for TXV systems and even feel piece recognizes that this isn't as good as testing and charging under normal conditions.

And your best bet. If you're having to set in a critical charge is to weigh it in anyway, so you know it's not as something that you're going to use to know exactly how much refrigerant should be in the system, but the way it works is it's pretty ingenious. It's very easy to adjust, which makes it nice so that you can kind of set your head pressure and your compression ratio and right where you want it. So in this video, we're gon na take a look at what it looks like in the field as well as just go through the instruction manual.

So you know how to use it all in all. I think it's a really nice tool for residential and light commercial techs to have on their trucks, especially if you're gon na be working on straight cool equipment. If you are going to be working on heat pumps, you can often refer to the manufacturers guidelines for heat pumps, rather than checking it using this method. But when you dealing with straight cool equipment, this is a nice way to go, and a nice option to have on your vehicle is: let's first look to the operators manual for this charging jacket.

The S 365 just make sure we don't miss nothing too obvious. So first thing only use on TXV systems. That's important because we're gon na be using this in order to essentially set in our compression ratio and then we're gon na take a look at what our sub cooling is, which is an indication of how much liquid refrigerant is backing up against the metering device. On the liquid line, ensure the system is powered off before installing the charging jacket.

So that way you don't get the zip cord into the fan thing make sure that it is completely off. Wear eye protection use in the ambient dry bulb temperatures between 37 degrees, Fahrenheit and 70, because otherwise, once you get above 65 outside you can just charge it normally. Most most manufacturers using it outside of this range can damage it. Keep the head pressure the system below 304 in r22 and below 500, and really well below that.

Generally speaking, gon na be more - and you know I would say max - have it about 400 for a modern for 10, a system just to make sure you're, not gon na run your head pressure too high, and now it says it looks a lot better than cardboard. That's the reason it restricts the fan outlet in effect, raising the temperature isn't the condensed and sir. This is a more effective method than blocking the incoming air. It's also just a little more consistent.

The other systems are going to be definite system. The winter charge setup may only be used for equipment for which the air conditioning manufacturers approve the use of the winter charge. Setup refer to California's energy commission website for the list of split system, air conditioning units approved by the manufacturers to use the winter charge set up so they're basically saying that look. You know this isn't ideal, it's better and more consistent to just you know, charge systems check systems when it's above 65 degrees outside, but sometimes in order to test while we're there.

This is a nice way of doing it. Turn the system off install the charging jacket. If the bungees you have the cinch, you can adjust the hole in the top and then adjusts how much air is coming out. The top always start with the top open so start with it wider and then tighten to restrict to increase it.

Here's where we get down to the nitty-gritty here, so you carefully adjust the restriction of the charging jacket until the difference between the high side and the low side. Pressures is between 160 psi G and 220 psi G for r410a. So that's where you're gon na start. So you're kind of setting you're kind of dialing.

In again, it depends on what that indoor temperature is what the load is indoor, what you're gon na see and again this is operating in cooling mode in low outdoor temperatures, and this is the differential you want to create once the system is within the proper range Or allow the system to stabilize for 15 minutes, so you have to actually let it stabilize calculate the actual sub cool and so you'll notice that they're much more kill ting towards the side of not adding charge based on this test. Unless you have more than a three degree differential, they don't want you overcharging it because of this device, but it just helps gives you a good idea whether their system especially significantly overcharged to check the TXV. I like that they have this here, so that when you have a TXV, you can check the TXV by calculating superheat and that's really what we're doing when we're checking superheat on a THC device, because the TX V's job is to set the superheat at the evaporator. Evaporator superheat, and so if no manufacturers data is present and available and that generally won't be with a TX V, then a superheat between four and twenty five degrees is acceptable for a TX billion, so they're giving you a really wide range there just to make sure That you're, not misquoting, t -- xv saying that their failed well they're.

Not. It also depends on where you're measuring, if you're measuring outside your superheat is gon na be higher than if you're measuring at the evaporator. So it's another factor so all in all a nice tool to help get a sense of a system as a significant charge issue in low ambient conditions below 65 degrees outdoors alright. So that is the field peace charging jacket for TXV systems, thanks for watching.