30000466A Navien Circulation Pump NAPU9GLPCT33 - amazon.com I broke down all the possible reasons that cause your Navien Recirculation Pump to produce a humming noise. This may temporarily help to remedy the issue. When its time to work with a recirculating pump, you should follow some instructions to avoid further hassles. We have one faucet in the kitchen that has instant scalding hot water the second you turn it on . Also, as I'm taking a closer look at it, I'm concerned that some key things may be amiss. Close the isolation valves to the cold-supply and recirculation lines. Fits These Models The circulation return needs to come from a loop at an end of the hot supply line. air), Latent Heat (BTU/hr) = 0.69 x CFM x gr. Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. We were advised of this upon installation. Save my name, email, and website in this browser for the next time I comment. Hi Christopher, not really. The consent submitted will only be used for data processing originating from this website. 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? You will not get hot water instantly. Then, turn it on again. What I imagined would happen is 3-4 seconds of cold and then super hot water that was just waiting for me from the recirculation. You certainly dont want that, do you? It could be open or shorted. You can replace the sensor if needed. It also increases the gas bill. It also may be as simple as a dip switch in the tankless unit itself. First, place a thick rubber between the pump and anything it will be mounted on. Make sure to follow the required instructions before and after you've turned it off for your safety. Its not exactly normal. From the valve, try to loosen up the cap to remove air from the system. What kind of range do you get from the remotes? Here are some simple instructions on how to turn on your Navien tankless water heater. Just like everything with these three characteristics, it is time-consuming and challenging. I have a tankless water heater with an external recirculating pump at the heater and a crossover valve under the kitchen sink. Learn more about Stack Overflow the company, and our products. This gives users hot water when they need it, saving water and money. Examine and wash the intake air filter underneath running water using a toothbrush. Are these pumps just a luxury that enables you to get hot water lightning fast, or do they actually save you money? Get a sump pump and connect the cold service hose to the sump pump. 1. Go along the steps described below to set the recirculation settings. 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. If the issue persists, contact your original installer or an NSS to service the sensor. For a better experience, please enable JavaScript in your browser before proceeding. Navien 240A2 tankless help : r/Plumbing - reddit Why are physically impossible and logically impossible concepts considered separate in terms of probability? Theoretically Correct vs Practical Notation. Not only that, by now you should know how to turn it off and why its important to do so. Is there a way to tell if the cold pipe is circulatory/return line or cold water from the mains? (std. The cold water pipe coming from the wall goes into the domestic water inlet on the tankless heater, as it should. Purchasing a timer will also fix the problem. Does anyone know the logic behind how Navien controls their internal recirculation pump when it is circulating with an external loop? The cold water inlet one thermistor is defective. By installing a hot water circulation pump, you will have a hot shower right away. This time of year, we dont need to have instant hot water circulating so we turned off the pump. The water heater is set to 120 F (49 C) by default. qc = the circulating water flow [m3/s] Foreign materials like small pebbles may get into the recirculation pump. My navien furance is producing hot water but not circulating Call Navien and explain if yours is older. Having a tankless water heater is an energy-efficient way of getting hot water. Hot Water Recirculating Pumps Explained: Why, How, Costs (+Tankless) We dont. Therefore, I can't drain the system. First, you need to consider Things to consider when sizing the busiest usage period or peak time. There is a circulator pump, but it still takes a long time for hot water to reach the upstairs bathrooms. 2 Types Of Hot Water Recirculation Pumps Used In Homes, Type 2: Recirculating Home Pump Comfort System, Advantages And Disadvantages Of Hot Water Recirculation Pumps, How Much Do Hot Water Circulation Pumps Cost + Installation Cost + Running Cost? So, ensure you purge the air out of the recirculation pump to operate the unit quietly. Also, check the feeder valve and pressure relief valves activity. What Parts Are In The Hot Water Circulation Pump Kits? Unplug the power to your Navien water heater. When attempting a flush of the system, I shut off the hot and cold valves that lead into the heater. Purchase and install a rocker switch or "doorbell" style buttons to activate the NRCR "on-demand" mode to prime the pump for use only when you want it. Worst case is your plumber might have to call since they require them to maintain it. Now you have your socket, turn it off/on whenever you want! Thanks. air). We and our partners use cookies to Store and/or access information on a device. Remove the filter from the plastic assembly and clean it with a toothbrush, and clean running water. ($0.05 $0.22/h), How Much Does 1000 Watts Cost Per Hour? So, there is such a thing. Im interested in information on a tankless water heater with a built in recirculating pump. The recirculation pump saves on water bills by reducing the time to get hot water. they have an accessory called the HotButton (PZZZ-00046). It means the circulation pump is not working correctly. To create an energy-efficient full recirculation system, your pump has to come with these two efficiency optimizing parts. Why Does My Stiebel Eltron Tempra High-limit Switch Keep Tripping. If pointed in the right direction, though, I might be able to solve this. On the other hand, if you find no foreign stuff, ensure you purge the air out of the system. Any tips on where to verify if I have a dedicated return line? It clips on the side of the PCB board without screws and then you connect a ribbon cable to the PCB. NPE-A2 Series | Navien You can return the item for any reason in new and unused condition: no shipping charges ; Then remove the cold water filter off located next to the cold water isolation valve. Signs There's a Problem with Your Hot Water Recirculating Pump - Maeser Do you want to know the details? When attempting a flush of the system, I shut off the hot and cold valves that lead into the heater. This serves two functions: You save water. Since pumps cost about $200 each, the recirculating pump will pay for itself in 3-4 years. 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. Press the + (Up) or (Down) buttons until the desired temperature appears on display. If your system is re-circed as close as possible to the fixtures (ask yourself do I have two hot waterlines for each fixture?) Weve tried to include every concern you might have regarding turning off the water recirculating pump. However, if you want hot water fast, these on-demand heaters are not ideal. We don't tend to provide any plumbing advice or any advice that should come from a certified professional. All you have to do is browse through our guides, answers and personal experience documentations to find out what you should (or shouldn't) do when going off the grid. Allow the vinegar to circulate through the heater for a minimum of one hour (longer if the pump runs at less than four gallons per minute). 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. Great article!! Remove the front cover of the water heater. You can change the cold water inlet thermistor if necessary. Hello Irving, Trutankless is an Arizona-based brand of tankless water heaters with built-in recirculation pumps. Continue reading below Our Video of the Day 1. Dont hesitate to switch the tees around if you get them backward. You mentioned that in the summer months your can turn off the recirculation pump. but you stopped short for me. Of course, the most important part is the pump itself, so well start with that: These are the standard building blocks of every recirculation pump for getting hot water quickly. This on-demand water heater has a lower carbon footprint, is energy efficient, and has a longer lifespan. Press the Power button on the front panel to turn on the water heater. Generally, your Navien recirculation pump will produce a humming noise because of the wrong size primary loop, not purging the recirculation pump, or foreign materials getting into the pump. if your water heater has 4 connections (CW in; HW out; condensate; gas) then the recirculation occurs within the water heater - IMO don't see the benefit in this setup as the water in the HW distribution system doesn't see flow . Allow it to dry for some time before fixing it again. where does the recirc line tie come off the hot lines? Turn off the unit and check the valves wiring and condition. For example, you may damp it into a bathtub, pushing the water through the isolation side on hot. It worked perfectly. rev2023.3.3.43278. However, the hot water had to travel from your water heater to the faucet for you to use. It depends on how the recirculation pump is installed, and some other factors, plumbers usually know this stuff pretty well. This requires the installation of an additional water pipe. Therefore most homeowners try to cut down costs wherever possible, bypassing the recommended installation procedure. If required, replace the thermistor. Understanding Navien Recirculating Water Heater - Heating Help: The Wall The Navien is smart enough to stop recirculation when it recognises hot water has made the entire loop. Those are quite significant savings. However, the plumber branched this off into the circulation water inlet. I can figure out occupied or not from a home automation or alarm system. Its clearly not always running as I can see it says standby on the display most of the time. As an Amazon Associate we earn from qualifying purchases. Thanks for contributing an answer to Home Improvement Stack Exchange! We have a standard gas hot water heater with a circulating pump. It means there is some issue with a water pressure sensor. Navien Tankless Water Heater How to & Troubleshooting Guide However, that shouldnt happen if you have turned the pump off. In his spare time, Oscar loves tinkering with electronics. 10.6 Maintenance 10.7.3 NPE-180A/240A Pump P-Q Curve The Navien NPE-180A and NPE-240A water heaters that are used . For example, you will see Navien error code 003 on the display screen, which means the igniter is malfunctioning. Page 12 Turn off and discontinue use of the water heater if any of the vent . Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Ensure that all hot water faucets are closed, and ensure that the internal circulator and any external circulating pumps are off. You can tell because the cold supply line is connected to the circulating return. I recently had a 240A2 installed. 3. I bought the remote PB you referenced above and the specs on it say it uses 12 VDC, but I couldn't find anywhere whether the 12 V supplied by the Navien board is either AC or DC. Turn off the recirculation when the house is not occupied, in order to save even more energy. With the NRCR you can set your own schedule with a remote accessory and tailor the integrated pump to your lifestyle or scheduled needs. Here are four problems with these pump systems that you should be aware of. Then descale a flush the heater following the steps listed below. Many systems turn on and off automatically to keep the water within a specified temperature range. Press either the Up and the Down button to switch between any of these recirculation settings: 2. Here is a list of advantages associated with hot water circulating pumps: Now lets have a look at the disadvantages of these pumps: Needless to say, recirculation pumps are not free. It means there is some issue with the OT-remote controllers operation. NAVIEN NPE-180A SERVICE MANUAL Pdf Download | ManualsLib Without the need for extra piping, this type of hot water circulation pump system also comes at a much lower cost. Make sure to follow our instructions properly for the right application. The hot water recirculation pump works by: The very phrase recirculating comes from this pump returning the unused hot water back into the tank. Allow it to dry and then fix it back. The total amount of water needed is 2 gallons + 1.5 gallons + (3 gallons * length of shower). I recall it was p23 but it was definitely larger than p20. The function of a recirculating pump is to ensure that hot water is always available as close to the consumption point as possible, in order to reduce water waste and to increase comfort. Thats 2,920 gallons of water per year wasted. To remedy this issue, turn off the heater for some time and restart it. This chapter will reveal all the possible culprits that cause the recirculation pump of your Navien to make a humming noise. Is it possible to create a concave light? My pipes arent big enough 2. plumbing - Why is my hot water circulator causing there to be hot water Remove the screw that secures the air intake filter and then remove the filter. Do new devs get fired if they can't solve a certain bug? We have to keep the valve on and slowly hot water comes out. If you fail to stop the noise after trying all the steps I mentioned, I bet there is a complex problem with the unit. I am wondering if you have a Navilink and if you by any chance went in like I did and clicked the "disable/enable button" and turned off the schedules, I did change that - thinking it was a glitch that on first launch "enable" was showing. . Older Navien heater models are prone to flow sensor issues. The air will need to be bled out of the system. Tankless Water Heater Wire Size Calculator: What Gauge Wire (AWG)? 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. Is there a recirculating pump for the tankless water heater known as Trutankless? 2. (With Water Savings Analysis), Note On Tankless Water Heater Hot Water Recirculation Pumps (Double Trouble), How Much Electricity Does A Tankless Water Heater Use? Find applications from Grundfos related to this subject. If any of them are loose or disconnected, your circulator pump won't work. Thats why turning off your pump is important when youre not using it. Is this noise normal coming from my Navien tankless heater? Hello Sam, you can shut off the recirculating pump to the kitchen faucet. 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. An open or short thermistor can be the root cause of this problem. Hi: Refer to the user manual to locate the Hot Button and then press it to activate hot water recirculation. The whole point of installing such a pump is to get hot water fast. He obtained his Bachelor of Science degree from the University Of Texas at El Paso. Check the thermistors condition along with pump wiring connectors. 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. Check to see if the water valves are open. Turning off your water recirculating pump reduces damage. You can turn off the recirculating pump in various ways. Answer: It really depends on your model type. It sounds awful and not like any other recirculating pump I've ever heard. Thats kind of why the water heater still has to do some work (it turns on); its not a lot of heating but some heating is usually required. Do Tankless Water Heaters Needs Recirculation Pumps? Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? It would be nice to get the hot water to the faucet especially the shower in the morning as quickly as possible. It is caused by an open or shorted air pressure sensor. Not really. . For more information, please see our Because the recirculation pump ran with no water, the motor ended up burning out. The major difference with hot water pumps in new homes is that you can install a full recirculation pump system (Type #1). By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. We have 6 Navien NR-210A manuals available for free PDF download: Service Manual, Operation & Installation Manual, Installation Manual, Owner's Operation Manual, Quick Installation Manual Navien NR-210A Service Manual (179 pages) NR/NP Series Tankless Gas Water Heater Brand: Navien | Category: Water Heater | Size: 21.79 MB Table of Contents Get in touch with Navien technical support or a professional heater repairman. Remove and clean the cold air intake filter. This serves two functions: This is also true for tankless water heaters. Additionally, you can install a 5-micron filter in the water inlet right before the heater to remove impurities from the water. For example, an open or shorted sensor causes this issue. The cold water pipe coming from the wall goes into the domestic water inlet on the tankless heater, as it should. Make sure that the drain hose will empty the scaling solution into the bucket. Your question, can I turn off my hot water pump? has been answered. Lets start by looking at how these pumps actually work: If it takes forever for the hot water to start running, it usually means that there is a long pipe between a boiler (or a hot water heater or tankless water heater) and the faucet. When I hooked hoses to the service pipes, the system still produced a strong, steady flow of water, seeming to not drain. The large valves should be in the off position, whereas the service valves should be in the on place. Also, turn off the water heater, and recirculate the pump. Make sure to follow the instructions before and after you turn off the pump. I am having issues with it ever since: water to certain places in my house seems to just stay warm (kitchen sink and master bathroom) unless I fully open the faucet all the way on hotand then still I have to wait a minute plus for the water to heat up. There are no error codes showing. Your article ended saying All in all, its important to understand that recirculation pumps are worth the money. To change the water temperature; Check this too: Richmond Water Heater How to & Troubleshooting Guide. Where does this (supposedly) Gibson quote come from? Therefore, the only task you can attempt on this list is the gasket replacement for the leaking water connection. Categories Home Improvement, Patio, Lawn & Garden, Plumbing, Tools, Water Valve Handle Broke Off? Take care! You can adjust the temperature while the display is flashing. A place for plumbing advice and help. When you are installing water system stuff, a lot of things can cause low pressure. Quite surprisingly for most homeowners, the biggest problem with this type of recirculation pump is getting cold water. Will a Water-Saving Recirculation Pump Save Me Money? - Treehugger That install is exactly as specified in the newer manuals. Is the cable harness compatible? Navien Recirculation Pump Noise [4 Easy Solutions], 02. Turn off the device and examine the APSs condition. Another sign is the error code display. Quick summary on costs: Recirculating a pump is certainly useful if you want hot water quickly. That may present a problem in the summer when you need cold water; turning the pump off during the summer months solves the problem. First, open and close the pressure relief valve, which is located near the units outlet. You just have to set the timer as you use it. DC Wire Gauge Calculator: What Gauge Wire (12V, 24V, 48V)? Contents show Get in touch with Navien technical support at 800-519-8794. Is there a check valve? The default setting is usually around 120 degrees Fahrenheit. The best answers are voted up and rise to the top, Not the answer you're looking for? Correcting Navien Tankless Hot Water Heater Installation Navien NPE-240s with external recirculating pump. - JustAnswer How to Troubleshoot a Circulator Pump Not Working | Hunker It is important to note that recirculation pumps dont work continuously; they are used only when we open and close the faucet. We turn it off because it will waste gas. Sure there is likely some distance between the recirculation line and the fixture which should me some time till hot water reaches. The plumber said that he tied in both in the master bathroom and the kitchen but Ill crawl under the house to validate this. However, whenever I turn on the cold water at the kitchen sink for a few seconds the tankless unit starts to run (heat water) even though I dont want heated water. The upfront cost is a major deterrent when deciding if it makes sense to install a circulation pump or not. Do not advertise or try to compare pricing. Should I keep my 5-year-old electric tank heater as a storage unit if I am about to install a new gas tankless heater? Minimising the environmental effects of my dyson brain. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. FREE Returns . The exhaust thermostat is malfunctioning. Turn off the device for 30 minutes and then restart it. So, hire a professional to deal with the issue. This unit doesnt have dip switches as far as I undersrand. This setup is very similar to the one I have with my 40 gallon tank setup with recirc/return line by using an X10 home automation module to program the remote to turn the pump on for 4 minutes and automatically turn off whenever someone presses it before taking a shower. What about adding the NaviLink WiFi board and controlling it from your phone anywhere? Is the plumbers reasoning valid here? Save my name, email, and website in this browser for the next time I comment. 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. To calculate the size of the heater, you will need to add up the amount of water required at a particular time. Hello Frank, one of the disadvantages of recirculating pumps is that you have to wait for cold water a bit. That is a premium service however. 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. 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. When the heat exchanger starts to crack, it creates a gap that can escape toxic exhaust gasses. How To Turn On A Navien Tankless Water Heater | GardeningLeave Grundfos water recirculation pump may troubleshoot, Grundfos circulating pump is making sounds, Easy DIY Media Cabinet Build with Basic Tools, From Cast-Iron to Stainless-Steel: How to Replace Your Kitchen Sink, While theres no water in the pump, do not turn on the recirculating pump. You need a crossover valve installed under one of your faucets that is far away from the water heater (there are a few different styles but they all have four connections and get installed under a faucet). Then, use the arrows to set the desired temperature. New build - tankless hot water heater - recirculation pump needed? - Houzz What parts does a home water recirculation pump include, and where to install it. Nobody really likes waiting for the hot water to start flowing under the shower or doing the dishes, for example. Can I swap out the mainboard in the NR240A to an NPE240A board to get all that features? Here are some of the leading causes of cold water production; Which means there isnt enough time for the water to heat up. Solutions like- unplugging it, using a timer and using wifi sockets are convenient. Change the thermistor if needed. Navien ComfortFlow is the first and only system that incorporates a built-in insulated buffer tank and recirculation pump. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Get it as soon as Wednesday, Mar 1. What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? Return this item for free. When we dont have to use it, why keep it on? Prevention of Modern Slavery Progress Reports. The E615 tells you about the irregularity in input and memory. Set the pump in the bucket and plug it in. A family of 4 with normal water usage can expect to save $50-$75 a year. Reinsert the filter into the plastic assembly. Note on tankless hot water heater recirculation pumps (double trouble solved). You can contact a plumber if necessary. Press the Power button on the front panel to turn off the water heater. Heres the deal on how to get the hot water faster from a water heater: When we turn on any faucet, the hot water needs to travel from the hot water heater to the faucet. Hi Howy, well, the circulating pumps are usually powered by electricity, so they dont use gas. "The recirculating pump costs about the same as operating a 25-watt light bulb," says Umberto Griccino, a commercial plumber and HouseGrail consultant. 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. Now, that comes to the question, can I turn off my hot water recirculating pump? Apart from that, you can easily turn it on/off on your mobile whenever you wish. Watt recirculating pump installed on the water heater (pump plugged into standard 110/120V outlet, 3/4-inch pipe thread connectors, valve).