2. How? Not only that, by now you should know how to turn it off and why its important to do so. Step 1 Remove the plug from the socket on the end of the wire that connects to your circulator pump. This propels the water to your faucet or shower much quicker. Navien's patented ComfortFlow system is the first to include a buffer tank, recirculation pump and fine-tuned controls into a tankless water heater, resolving the cold-water sandwich effect* and issues of minimal flow rates commonly found in other tankless water heaters. Obviously, you might be wondering: If the recirculation pump loop is running continuously, youre probably expanding too much electricity just to get hot water faster. This can be determined based on the following factors: The average water usage for different hot water uses are as follows; Check this too: Insinkerator Hot Water Dispenser How-to & Troubleshooting Guide. They are not without upfront costs or disadvantages, but they do offer the luxury of having hot water almost instantaneously and they save you a lot of water. Otherwise, this will cause the shut-off valve to get damaged. Locate the reset button on the heaters front control panel. Pump the white vinegar into the cold side, up through your water heater, and out the hot side. Turns out if you "disable" schedules when in always on mode it stops the every 30 minute schedule the device uses when in Always On mode. Here are some of the leading causes of cold water production; Which means there isnt enough time for the water to heat up. Press the + (Up) or (Down) buttons until the desired temperature appears on display. For example, if you get the tees backward, the recirculation pump will not function properly. Check this too: Electric RV Water Heater How to & Troubleshooting Guide. So, saving water is the main reason for calling a recirculation pump eco-friendly. Open the service port on the host side and the isolation valve on the cold side, pushing water through the system. Ensure you mount the pump securely. These on-demand units need an even longer time for the hot water to reach a faucet because the heater has to first heat the water and then send it along to the faucet. (Cost Calculations), BTU/h To Horsepower Calculator + BTU/h To HP Chart (To 72,000 BTU/h), Horsepower To BTU/Min: Convert HP To BTU Per Minute (Calc + Chart), HP To BTU/hr: Horsepower To BTU For A/C (Calculator + Chart). The bigger the house, the longer these water pipes usually are, and the longest it takes to get hot water. It provides information about the problem with the fan motor. 08. If your system is re-circed as close as possible to the fixtures (ask yourself do I have two hot waterlines for each fixture?) Years of experience in the HVAC field have taught him many lessons, not the least of which is that the value of quality and knowledge far exceeds any promised initial savings. The disadvantages of recirculating pumps include waiting for cold waters (its a less-known disadvantage), having to install additional wiring, and so on. W2 Wire Thermostat Wiring (2nd Stage), Thermostat Wire Color Codes For 3-8 Wire Thermostats (Color-By-Color), How Many Therms Of Gas Per Month Is Normal? First, place a thick rubber between the pump and anything it will be mounted on. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. With two pipes, you can create a loop between the water heater and faucets. You can turn it off during work hours, over the night, when you go on vacations, and so on. 30000466A Navien Circulation Pump NAPU9GLPCT33 . After draining a few hot water tanks over the years, removing sediment, will the cold water now possibly have some sediment and/or taste issues. The cold water pipe coming from the wall goes into the domestic water inlet on the tankless heater, as it should. Then replace the heater cover and turn the gas or power back on. The number of bathrooms, tubs, dishwashers, and washers. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. It will help you avoid common water heater issues and let you operate the unit smoothly. I have an NR240A for about 10 years now. Cookie Notice But, making sure youre doing it the right way is important. Navien Flow Sensor. Think hot water loops returning to your boiler to get reheated (to stay hot) Think LOOPS!! Some brands/models dont include it. Navien NaviCirc Recirculation Valve Description How it works Specifications Dimensions Just locate the air bleeder valve on top of the recirculation system. Similarly, if the return from the loops is mixing with the boiler loop system and cooling off the water before it gets sent to the recirculation pump, you will face this problem. It has a timer that turns on the pump at regular intervals, mostly during peak usage times. Prevention of Modern Slavery Progress Reports. Confirm the thermistor and wiring is in good condition. Connect a regular garden hose to the hot side service valve. This is because the sensors are corroded over time which causes them to shut the heater down. If we dont use it, we waste a lot of water. Where did you find that info? rev2023.3.3.43278. Turn off the device and examine the APSs condition. Both of those spots are problematic though. Thats why turning off your pump is important when youre not using it. Is this noise normal coming from my Navien tankless heater? If this does not work, hire a professional to repair or replace any damaged parts. Older Navien heater models are prone to flow sensor issues. If you look at the instructions, which tech support emailed to me, there is a Signal 1 input for 12 or 5V devices including remote controls or motion sensors BTW the other remote was sold out. Also, check the feeder valve and pressure relief valves activity. Why Its Important To Turn Off The Water Recirculating Pump? Then, turn it on again. Its a piece of cake to bleed the air out of your Navien recirculation pump. It can take anywhere from 10 seconds to 1 minute for the hot water to reach the faucet. Let the vinegar cycle through the cold side for 45 minutes. Sure there is likely some distance between the recirculation line and the fixture which should me some time till hot water reaches. That means that all the costs of the hot water circulation pump are covered by the water savings. The timer has control over when the pump is working continuously. It looks like you're using an ad blocker. What about adding the NaviLink WiFi board and controlling it from your phone anywhere? Examine and wash the intake air filter underneath running water using a toothbrush. It tells you about the improper operation of the flow sensor. $197.08 $ 197. I obviously dont know much about this but the plumber is giving reasons that feel like he is making up dont make sense to me: 1. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. It means there is some issue with the flow sensor or switch. This may temporarily help to remedy the issue. here are some problems that you may have to deal with in the future or have experienced already primarily found in older Navien heater models; Though not a common occurrence, it is still essential to know how to identify these issues. Make sure the major electrical cord is grounded correctly. Ask an Expert Home Improvement Questions HVAC Questions Navien NPE-240s with external recirculating pump. You can change the cold water inlet thermistor if necessary. However, if you want hot water fast, these on-demand heaters are not ideal. Well, If you overuse your pump, it will start malfunctioning. Turn off the electrical supply to the pump Locate the small bleed screw on the pump Remember the pump is full of water, so place the cloth underneath the screw Turn the screw very slowly (less than a quarter turn is usually enough) to allow any air to escape Tighten the screw Mop up any excess water Turn the electrical supply back on Is there a check valve? If your pump does this, then it is to be expected, otherwise it sounds like the hot and cold are mixing at some point and you'd need to find out where . Navien NPE-240 A Recirculation Line www.amazon.com/shop/miheatingguy Milwaukee 2131-20 M18 ROCKET Dual Power Tower Light Hot Water Recirculating Loop Owen Perkins 81K views 3 years ago NAVIEN. Then turn on the heater and then your pump. To learn more, see our tips on writing great answers. However, if it generates annoying or buzzing noise, there is something wrong with the system. Troubleshooting Navien NPE-240A Internal Recirculation Pump - YouTube 0:00 / 4:21 Troubleshooting Navien NPE-240A Internal Recirculation Pump RCGooner2002 240 subscribers Subscribe. I would appreciate any help and insight you can offer. Go along the steps described below to set the recirculation settings. Then, use the arrows to set the desired temperature. if you do have an external recirc line BUT it was installed when the Navien , then see if you can find where the recirc line connects to the hot water line - maybe it's serving a portion of your fixtures and the other fixtures are not benefiting from the recirculation. Here are four problems with these pump systems that you should be aware of. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. The default setting is usually around 120 degrees Fahrenheit. When its time to work with a recirculating pump, you should follow some instructions to avoid further hassles. That installation is incorrect. Only 19 left in stock - order soon. Did you mount the contact switch next to the Navien? Close the isolation valves to the cold-supply and recirculation lines. It is caused by an open or shorted air pressure sensor. If you have a Navien tankless water heater this can be done by simply pressing a . Yes, you can turn off your hot water recirculating pump. I installed this system a few days ago and I've been trying to trouble shoot the noise that's coming from the re-circulation pump. For example, if you have a person showering and another individual shaving. Open the pressure relief valve. I got a Navien NPE 240A2 installed in my home with dedicated recirculating line (hopefully I got the lingo right!) Power Waste Any tips on where to verify if I have a dedicated return line? Where is the 2 internal drain valve in Navien 240a tankless water heater (damaged needs replacement), Shower gradually cools, gets hotter when sink is on. Solutions like- unplugging it, using a timer and using wifi sockets are convenient. Follow the steps below to clean your Navien water heater; Note: If you are unsure of your ability to handle this task, hire a professional to clean the heater. Minimising the environmental effects of my dyson brain. Thanks for contributing an answer to Home Improvement Stack Exchange! Check this too: Electric RV Water Heater How to & Troubleshooting Guide The DIP switch setting has some problems. Quite surprisingly for most homeowners, the biggest problem with this type of recirculation pump is getting cold water. Increase water pressure at the water heater. Yes!!! By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Question: How is a water recirculating pump eco-friendly?Answer: The basic reason is, water recirculating pumps save water. Make sure the exhaust pipe is not obstructed. air), Latent Heat (BTU/hr) = 0.69 x CFM x gr. Also the unit needs to be set to utilize the recirculation feature. If you are unsure of whether the recirculation pump was correctly installed, contact Navien technical center or the NSS agent who installed the heater. Why isn't my Navien tankless water heater performing as it should? What kind of range do you get from the remotes? Do you want to know the details? Turning off the water recirculating pump isnt a big deal. Making statements based on opinion; back them up with references or personal experience. Foreign materials like small pebbles may get into the recirculation pump. It only takes a minute to sign up. Are these pumps just a luxury that enables you to get hot water lightning fast, or do they actually save you money? Error Code E438 It means the circulation pump is not working correctly. You just have to unplug the pump, and it will be turned off. toby sutton wife of frank sutton how to turn on navien recirculation pump A while ago we had a plumber/friend install a Navien tankless water heater. Can this be moved to another sink in the house that is not used as often ? It means the circulation pump is not working correctly. Hi Patrick, thats a good insight. In fact, however, the whole machinery of the hot water recirculating pump has to be activated for this to happen. In existing homes, adding an additional pipe for a full recirculating pump system is often too expensive; its just dont worth it, according to HVAC specialists. Here are some simple instructions on how to turn on your Navien tankless water heater. To install a full recirculating pump system, you need to consult with a plumber because you will need an extra pipe. Asking for help, clarification, or responding to other answers. Also, check the filters to see if they are clean. That may present a problem in the summer when you need cold water; turning the pump off during the summer months solves the problem. On top of that, the recirculating pumps also return the cold water in the pipes back to the heater. (+ Calculator), 5 Best Air Purifiers For Allergies In 2023 (+ H13 Medical-Grade HEPA Filters), Is A Tankless Water Heater Worth It? The error code E441 informs about the open thermistor or short circuit problem. One option is to put a relay/contactor between the Navien and the internal pump, so that that pump can only get power when the house is occupied. However, some gas needs to be used to heat water for the pump to circulate; the gas usage for this is pretty much insignificant relative to how much gas we use when powering the instant hot water heater.
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