Video: Aprilaire 4837 Maintenance Kit for Model 560

Aprilaire 4837 Maintenance Kit for Model 560 Product Information and Installation Assembly
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Hi, I'm Jay. And this is the Aprilaire 4837 maintenance kit. It should be replaced every five years. Included in the kit, is a water panel, scale control insert, water distribution tray, feed tube, feed nozzle, drain spud, and strainer screen. 

 

Replacement is simple, here's how. Be sure to turn the power off, before performing any maintenance. Before performing this service, it is necessary to shut off the water. Find the saddle valve, turn it clockwise, until it stops. 

 

Alright, here's the water panel, You'll notice on one edge of it, there's a spray paint mark, which indidicates "up." We'll slide it into the scale control insert. You'll notice slots here, those slots line up with the tabs, on the distribution tray.You'll notice on top of it, there's a little hole here, that hole, is for the feed nozzle. There's a little tab on it, and it snaps in like this. This assembly is now ready to be installed inside of your humidifier. This side will go towards the humidifier, this side will go towards the furnace or duct work. Grab the end of the feed tube with the orifice in it. Slide the brass nut on first, followed by the nylon ferrule. Be sure to have the ferrule, with the skinny side pointing towards the end. Now it's ready for assembly, onto the solenoid valve. 

 

The feed tube material is rather stiff. On some models, it may be necessary to warm it up with a hair dryer in order to bend it. Be careful not to overheat it.

 

We're going to use a half inch wrench, to disconnect the feed tube. Now let's connect the feed tube to the solenoid valve. Insert the feed tube into the solenoid valve, until it bottoms out. Slide the ferrule and the brass nut forward, and hand tighten it. It's important at this point to put pressure on the feed tube, so it does not back out of the solenoid valve when you tighten it. Now we're going to tighten that up. So now we're going to change the strainer screen. This is the incoming water line, the solenoid valve, and the feed tube. There's an arrow here, indicating which direction the water flows through the solenoid valve. Here's the tools we'll need. 7/16 inch wrench, 1/2 inch wrench, pair of needle nose plyers, and a common paper clip. Now, we're going to disconnect the water line. We'll loosen this up, pull the water line out of the way. Now we're going to take the paper clip, and straighten it out. Alright, that's straight enough. Now we're going to bend a small hook on one end of it. There we are. The small hook is going to be used to catch the strainer screen. We're going to slide it in like this to grab the old one. We're going to reach into the valve, grab the old strainer screen, pull it out, and dipose of it. Now we're going to take the new strainer screen, insert it into the solenoid valve, take the straight end of the paper clip, and use it to push the strainer screen into place. Now all we have to do, is reconnect the water line. Tighten it up, and there we have it. It's all done. Now the only thing we need to do is turn the water back on. Now let's insert the feed tube into the nozzle. Simply push it in, it's friction fit, no glue is required. 

 

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