A recirculation system is a hot water line that runs throughout the house and returns back to the water heater. Once again, there are a few different things it could be. Remove and clean the cold air intake filter. However, whenever I turn on the cold water at the kitchen sink the tankless unit starts to run (heat water) even though I dont want heated water. Find applications from Grundfos related to this subject. The leading causes of the intermittent flame; You can fix these issues by maintaining and cleaning the heater. It shows that the heating return thermistor is not working correctly. Solar panels, wiring, old TVs and sometimes DIY powerwalls. Otherwise, this will cause the shut-off valve to get damaged. This issue is more common in older heater models. To install a full recirculating pump system, you need to consult with a plumber because you will need an extra pipe. A loose part causing unnecessary vibrations, Vacuum in the water lines causing vibrations, A dirty flow sensor leading to gas flow interference and producing weird noises. Then re-insert the filter and screw it back in place. It sounds awful and not like any other recirculating pump I've ever heard. This made me suspicious that water was coming from the mains. Are these pumps just a luxury that enables you to get hot water lightning fast, or do they actually save you money? You can contact a plumber if necessary. When we dont have to use it, why keep it on? Therefore most homeowners try to cut down costs wherever possible, bypassing the recommended installation procedure. At the same time, someone is in the kitchen doing the dishes. Get in touch with Navien technical support or a professional heater repairman to fix the issue. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. When you are installing water system stuff, a lot of things can cause low pressure. This breaks down the scale and flushes out the sediment. Will a Water-Saving Recirculation Pump Save Me Money? - Treehugger Now, that comes to the question, can I turn off my hot water recirculating pump? Making statements based on opinion; back them up with references or personal experience. That installation is incorrect. Then remove the cold water filter off located next to the cold water isolation valve. Also, did you wire the PB from the Hot Button kit or only use the remote? Here we will cover all the important parts of hot water recirculations pumps, including: You will get an overall look at how you can use increased water pressure by a circulation pump for almost instantaneous hot water access. [Fix It Easily], Ball Valve Handle Broke Off [Step By Step Solutions]. This on-demand water heater has a lower carbon footprint, is energy efficient, and has a longer lifespan. Then, turn it on again. Privacy Policy. Can I swap out the mainboard in the NR240A to an NPE240A board to get all that features? To remedy this, you can take the two clamps off the sensor, pull it out and clean it. Solutions like- unplugging it, using a timer and using wifi sockets are convenient. (State-By-State Chart), How To Convert Therms To kWh? To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Create an account to follow your favorite communities and start taking part in conversations. I bought the. Remove the front cover of the water heater. If yes, clean them. I just hooked up the NR-20DU wired remote control ($80 from Fergusons) and programmed 3 on/off recirculating cycles based on family needs. Turn off your main water valve if you are going on vacation. Thats why turning off your pump is important when youre not using it. The short answer is no, your water will still be pure. This error informs you there is something wrong while you reset the unit. Why do small African island nations perform better than African continental nations, considering democracy and human development? Return this item for free. I recall it was p23 but it was definitely larger than p20. Turn off the recirculation when the house is not occupied, in order to save even more energy. It is an indication that your warm water outlet thermistor has some problems. So, there is such a thing. Our articles, products and services are for informational purposes. Ensure all return and supply lines are open and check the 2-way valves direction. If required, replace the thermistor. Not Mounted The Pump Securely or Isolate It, Navien Tankless Water Cycles On And Off [5 Easy Solutions]. If the external recirc is set up without this it will just run, defeating the purpose of hot water on demand. Its really an easy task to do. The cold water pipe coming from the wall goes into the domestic water inlet on the tankless heater, as it should. House was built in late 1990s and is 2 story, built on a slab foundation. (+ Installation Costs), How Many Amps Does A Tankless Water Heater Use? Turning off your water recirculating pump reduces damage. Turn the unit off. Cookie Notice This item: Navien 30010780B Circulation Pump. Average 1-6 Person Home kWh Usage, Gas Vs Electric Water Heater Monthly Cost Comparison (State-By-State), Water Heating Costs For 1,2,3,4,5,6 Family Homes (State-By-State Analysis), Electric Water Heating Cost, kWh Usage Per Month (State-By-State RECS Analysis), What Is W2 Wire On Thermostat? Depending on the size of the pump and installation difficulty, the average cost of a hot water recirculation pump costs anywhere from $200 to $800 (installed). Sold by HVAC Pros and ships from Amazon Fulfillment. We have some suggestions for you if you want to buy the best wifi sockets. Create a chart to regulate hot water usage. my understanding of the Navien with internal recirc pump is that they work with either an external dedicated return pipe or an internal bypass loop located within the water heater cabinet. Close the cold and hot water inlet valves and then drain the water heater. Manage Settings Sure there is likely some distance between the recirculation line and the fixture which should me some time till hot water reaches. Make sure that the drain hose will empty the scaling solution into the bucket. It is affordable and can easily fix your problem. Im interested in information on a tankless water heater with a built in recirculating pump. This is where the timer and temperature sensor come in. Apart from that, you can easily turn it on/off on your mobile whenever you wish. Take care! If you'd like to support the site, please allow ads. Is it possible to create a concave light? I got a Navien NPE 240A2 installed in my home with dedicated recirculating line (hopefully I got the lingo right!) I have an NR240A for about 10 years now. Is a Hot Water Recirculating Pump Worth It? 10 Pros and Cons - Your H2Home Then, use the arrows to set the desired temperature. Once the display stops flashing, the temperature setting is stored. Those are quite significant savings. Because the recirculation pump ran with no water, the motor ended up burning out. 2. NaviCirc Recirculation Valve | Navien If a hot water faucet is open, you can adjust the temperature only from 98-110 F (37-43 C). The large valves should be in the off position, whereas the service valves should be in the on place. You can contact a plumber if necessary. If water comes out from the pressure relief pipe, this indicates that the issue is not with the unit but with the house's plumbing. Solution: Ensure all return and supply lines are open and check the 2-way valve's direction. This is known as recirculating home pump comfort system (Type #2) and its the most popular way to get hot water quickly. Just locate the air bleeder valve on top of the recirculation system. Also, check the filters to see if they are clean. This extra pipe is installed parallel to conventional piping. Navien NPE-240 A Recirculation Line - YouTube In fact, with a tankless water heater, you face double trouble (thats why youre not getting hot water fast): Because we need to wait longer for hot water in the case of tankless water heaters vs. traditional water heaters, it makes sense to minimize that time in tankless heaters even more. Disconnect the power supply to the water heater. Reddit and its partners use cookies and similar technologies to provide you with a better experience. If any of them are loose or disconnected, your circulator pump won't work. Yes, you can turn off your hot water recirculating pump. air). Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. Patrick. Get in touch with Navien technical support or a professional heater repairman. I guess the recirculation line will be the only one that is copper. Here are four problems with these pump systems that you should be aware of. So, hire a professional to deal with the issue. For example, you will see Navien error code 003 on the display screen, which means the igniter is malfunctioning. Rather than using the hard wired door bell style push button that comes with the kit, I bought this remote control unit (. We want to reduce waste in using water given our well situation. The default setting is usually around 120 degrees Fahrenheit. However, that shouldnt happen if you have turned the pump off. Typically recirc lines connect at the furthest fixture and allows hot water to flow through the main trunk lines. Maintaining Your Central Heating Pump | Living by HomeServe Timers and wifi sockets are quite cheap. A water recirculating pump is also similar to this. How To Fix Navien Tankless Water Heater Code E003? 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. The bigger the house, the longer these water pipes usually are, and the longest it takes to get hot water. Press J to jump to the feed. The buffer tank eliminates the "cold water sandwich" effect and issues of minimum flow rates commonly found in other tankless water heaters. There is a circulator pump, but it still takes a long time for hot water to reach the upstairs bathrooms. An example of data being processed may be a unique identifier stored in a cookie. Hi Christopher, not really. Both of those spots are problematic though. Then check to see if the plumbing lines and the heaters water lines are clogged. It worked perfectly. A hot water recirculation pump can be sized for a given system using the following formulas: Water flow qc = /T x 4200 Check to see if the water valves are open. Also, make sure you get the 1- pipe for the horizontal manifold, which will help even out the flow of the recirculators. Is there a check valve? Also, as I'm taking a closer look at it, I'm concerned that some key things may be amiss. Is the plumbers reasoning valid here? Please see below for important warranty information and a list of models that this part fits. We turn it off because it will waste gas. Hathaspace Smart True HEPA Air Purifier Reviews, 4+6 Best Whole-House Dehumidifiers (Ducted, Portable), 4 Quietest Dehumidifiers (Best Bedroom Dehumidifiers): 52.1 dB Or Lower, energy-efficient way of getting hot water. What video game is Charlie playing in Poker Face S01E07? For a better experience, please enable JavaScript in your browser before proceeding. It looks like you're using an ad blocker. You can crack open the manual for your tankless heater and check if it comes with that option. It is located on the lowest corner opposite the on and off button. Shut off the appliance for half an hour and then restart. 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. (1000-3000+ Sq Ft Homes), Thermostat Says Heat On But No Heat? Just one Navien water heater manual for all NPE-A and NPE-S units. but you stopped short for me. Now, we have to check if these costs are balanced out by the water savings. The E760 informs you that its time to flush your heater. How? Confirm the thermistor and wiring is in good condition. Ensure the main gas supply valve is open. As an Amazon Associate we earn from qualifying purchases. When building a house, its smart to think about hot water recirculation as well. These are the kinds of issues that can occur if you aren't aware of the automatic appliances that are connected to your system (and don't shut them off along with the water). You May Forget to Purge The Recirculation Pump, 03. We can go from there with up to 3 hours of dedicated live coaching on the telephone if needed. Another sign is the error code display. Then, you can change the tank thermistor if needed. 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. What am I doing wrong here in the PlotLegends specification? Or invest in a larger water heater. Asking for help, clarification, or responding to other answers. Lets outline them here: To determine if installing a hot water recirculation pump makes sense for your situation, we have to check the pros and cons. air), Sensible Heat (BTU/hr) = 1.1 x CFM x t (std. Remove the intake filter and properly wash it using a brush beneath running water. But, you can buy a new recirculating pump for $200-400. The pump saves this cold water and recirculates it in the hot water. I may be able to correct this if I solve the mystery on where the dedicated return line might be. Depending on the age of your Navien NPE-A model, he did you a favor. 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. I used a razor and carefully pried each side of the RM11 open to reach the programming switch. Navien NPE-240 A Recirculation Linewww.amazon.com/shop/miheatingguyMilwaukee 2131-20 M18 ROCKET Dual Power Tower Lighthttps://amzn.to/3pe2hYHMilwaukee M12 Surge Hydraulic Driver Kit #2551-22https://amzn.to/3n5offbMakita E-01563 Impact XPS 3 Pc. if your water heater has 5 connections ( CW in; HW out; Recirc in; condensate ; gas) then the recirculation is coming backing to the water heater. 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. Here are some simple instructions on how to turn on your Navien tankless water heater. In his spare time, Oscar loves tinkering with electronics. Navien Recirculation Pump Noise [4 Easy Solutions], 02. Then turn on the heater and then your pump. But, making sure youre doing it the right way is important. 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. Therefore, the only task you can attempt on this list is the gasket replacement for the leaking water connection. Press either the Up and the Down button to switch between any of these recirculation settings: The consent submitted will only be used for data processing originating from this website. Perhaps not everyone is familiar with the newer manual. Pump the white vinegar into the cold side, up through your water heater, and out the hot side. You can adjust the temperature while the display is flashing. Hello Lucy, in most cases, you have that option. Neither reason is likely to be correct but we would need a much more in depth knowledge of the hot water distribution system and the circulation line in particular. 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. Lets hop in! There are more options, for example- you can buy a wifi socket. If your system displays this code, you need to confirm the water pressure is within good ranges. How do I align things in the following tabular environment? If you have a Navien tankless water heater this can be done by simply pressing a . Recirculate temp in is 67, temp out when just recirculating is 67. Hi Howy, well, the circulating pumps are usually powered by electricity, so they dont use gas. . - If there is not the fore mentioned set up he probably did the best he could do without re plumbing your house with double hot (returns to your Navien! Weve tried to include every concern you might have regarding turning off the water recirculating pump. That install is exactly as specified in the newer manuals. Reinsert the filter into the plastic assembly. IF it does, could it be controlled remotely? Is this correct for the function of the system? I don't hear the heater "fire up" right away when the tap is opened and can't tell if the recirculation pump is running. Place a bucket underneath it to catch any water that drains when you remove the filter. On the other hand, if you find no foreign stuff, ensure you purge the air out of the system. This is done every time you close the faucet. Do not advertise or try to compare pricing. Both types of systems have similar pros and cons. However, this is only a temporary fix. So, saving water is the main reason for calling a recirculation pump eco-friendly. So, ensure you purge the air out of the recirculation pump to operate the unit quietly. First, open and close the pressure relief valve, which is located near the units outlet. Go along the steps described below to set the recirculation settings. Why Does My Stiebel Eltron Tempra High-limit Switch Keep Tripping. Check to see if the warranty is still valid and contact the manufacturer. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. To understand this problem what I am talking about, you can watch this video: First off, I recommend you check the primary loop. qc = the circulating water flow [m3/s] Let's hop in! DC Wire Gauge Calculator: What Gauge Wire (12V, 24V, 48V)? What effect does this have on gas usage for instant hot water? It shows that the water adjustment valve is not operating properly. Place the filter assembly back into the water heater and secure it with the screw. It means the circulation pump is not working correctly. Make sure the major electrical cord is grounded correctly. Answer: It really depends on your model type. If necessary, replace them all. Actually the only real issue is the lack of isolation valve on the recirculation connection, resulting in the constant water supply to the water heater. You can tell because the cold supply line is connected to the circulating return. Hot Water Recirculating Pumps Explained: Why, How, Costs (+Tankless) How to Troubleshoot a Circulator Pump Not Working | Hunker All in all, its important to understand that recirculation pumps are worth the money. Normally uncontrolled pumps are used as the flow variation is relatively small. Press the M (menu) button on the front panel and choose the 1.