There are no error codes showing. You dont have to install an additional pipe. Are these pumps just a luxury that enables you to get hot water lightning fast, or do they actually save you money? That may present a problem in the summer when you need cold water; turning the pump off during the summer months solves the problem. 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. 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. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. T = the water cooling, normally 5 C determined at the farthest consumption point [C]. It may not display this or other websites correctly. He said he tied in both in the master bath and the kitchen but it seems if that were the case at a minimum they would have hot water quickly. I have alos checked my HeatBox settings to ensure the temp is set high enough for my domestic supply (set to around 120 degrees). Making statements based on opinion; back them up with references or personal experience. The exhaust thermostat is malfunctioning. You can also identify and fix them yourself. Minimising the environmental effects of my dyson brain. Turn off the unit and check the valves wiring and condition. Unscrew the plug cover with a suitable screwdriver to remove it. Or invest in a larger water heater. Remove the intake filter and properly wash it using a brush beneath running water. Grundfos small circulators are perfect as hot water recirculation pumps for commercial and domestic hot water applications. Carbon monoxide (CO) is a tasteless, colorless, odorless, and highly poisonous gas which can be deadly to humans in high concentrations. but you stopped short for me. Thats why turning off your pump is important when youre not using it. 30000466A Navien Circulation Pump NAPU9GLPCT33 . 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). Examine the wiring and thermistors condition. (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). You can return the item for any reason in new and unused condition: no shipping charges ; Yes, you can turn it off by yourself. The exhaust is overheating. The DIP switch setting has some problems. 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. We always take the pros vs. cons approach because nothing is perfect. So, there is such a thing. The recirculation pump saves on water bills by reducing the time to get hot water. 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. Think hot water loops returning to your boiler to get reheated (to stay hot) Think LOOPS!! Then, read the manual on Navien tankless water heater how to reset. Hello Lucy, in most cases, you have that option. You will not get hot water instantly. Check to see if the warranty is still valid and contact the manufacturer. Make sure the electrical cord is grounded. Check this too: Electric RV Water Heater How to & Troubleshooting Guide. Just locate the air bleeder valve on top of the recirculation system. 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. I have a tankless water heater with an external recirculating pump at the heater and a crossover valve under the kitchen sink. $197.08 $ 197. 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. sounds like you need a different plumber to assess your situation. Get in touch with Navien technical support or a professional heater repairman to fix the issue. This number indicates that the water pressure is high. However, that shouldnt happen if you have turned the pump off. It is affordable and can easily fix your problem. $44.90. Is there a check valve? What disadvantages, beside cost???? Make sure to follow the instructions before and after you turn off the pump. A hot water recirculating pump will save you money, especially if you have a larger family. Is the plumbers reasoning valid here? My pipes arent big enough 2. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Types of water circulation pumps, including tankless water heater recirculation pumps. If pointed in the right direction, though, I might be able to solve this. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. 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. Thanks for confirming and letting me know about the potential damage to the circulating pump as that hadn't occurred to me. Full Recirculation Pump System - Going this route adds additional piping to your system, allowing for a "hot water loop" to be created, ensuring the water doesn't end up sitting and going cold in your pipes and instead is recirculated, ready for the next time you turn on the tap. air), Latent Heat (BTU/hr) = 0.69 x CFM x gr. Open the service port on the host side and the isolation valve on the cold side, pushing water through the system. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. 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. There are two options when it comes to tankless heaters and recirculation pumps: If you have difficulty finding out which brand is the best for a tankless water heater with a recirculation pump, you should check the newest Navien, Rinnai, and Rheem units. Hi Patrick, thats a good insight. Check if there is any gas leakage before turning it on after a couple of days. After using this amount of time, hardware gets old and starts to malfunction. The average electric tankless water heater needs at least 120 amps to work. Unfortunately, the heat exchanger cannot be fixed and has to be replaced. The second method seems to suggest the cold water at sinks will most likely have been run through the hot water tank. All you have to know is how to turn it off. Save my name, email, and website in this browser for the next time I comment. In compliance with California's . Then, use the arrows to set the desired temperature. Follow Up: struct sockaddr storage initialization by network format-string, Bulk update symbol size units from mm to map units in rule-based symbology, Short story taking place on a toroidal planet or moon involving flying. Here are some of the leading causes of cold water production; Which means there isnt enough time for the water to heat up. Then, tighten up the cap again once you remove all the air from the loop. First, place a " thick rubber between the pump and anything it will be mounted on. You can contact a plumber if necessary. A recirculation system is a hot water line that runs throughout the house and returns back to the water heater. Navien has an aftermarket add on hot point or something that lets you control when the recirc is on. Otherwise, turn it off. It shows that the heating return thermistor is not working correctly. Your question, can I turn off my hot water pump? has been answered. Grundfos water recirculation pump may troubleshoot sometimes. The upfront cost is a major deterrent when deciding if it makes sense to install a circulation pump or not. However, if you want hot water fast, these on-demand heaters are not ideal. Great article!! (42-167 Amps), How Much Propane Does A Tankless Water Heater Use? Sold by HVAC Pros and ships from Amazon Fulfillment. Do you want to know the details? I got a Navien NPE 240A2 installed in my home with dedicated recirculating line (hopefully I got the lingo right!) (+ Installation Costs), How Many Amps Does A Tankless Water Heater Use? Make sure the major electrical cord is grounded correctly. Question: How much does it cost to buy a water recirculating pump? Second, you can use a flex connector to isolate the pump. Weve tried to include every concern you might have regarding turning off the water recirculating pump. Buzzing noise out of the recirculation pump will be general if you or your plumber dont mount the pump securely. The heating supply thermistor is defective. 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. You can adjust the temperature by the below 10-degree increments, depending on the temperature range: 98 F-120 F/ 36 C-50 C 1 F or 0.5 C increments, 120 F-140 F /50 C-60 C Press for 2 seconds to adjust in 5 F or 2C increments. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. Then re-insert the filter and screw it back in place. To select a recirculation mode, you must set the DIP switches on the front panel, and set the position of the 2-way valve inside the water heater. You can change the cold water inlet thermistor if necessary. How can this new ban on drag possibly be considered constitutional? It is a visible sign that your devices cold water inlet two thermistor is having some issues. Is this incorrectly installed? The E615 tells you about the irregularity in input and memory. Now, we have to check if these costs are balanced out by the water savings. When the water is sufficiently hot, the temperature sensor will shut off the power to the recirculation pump to conserve energy. Answer: It really depends on your model type. What effect does this have on gas usage for instant hot water? Perhaps not everyone is familiar with the newer manual. But, yes, I understand why it seems feasible for the sediment to eventually enter the water flow and cause the change in taste of water. Here is the final install. However, many first-time and beginner road travelers and RV How to Connect a Generator to Your Tiny House Without a Transfer Switch. Where does this (supposedly) Gibson quote come from? It tells you about the abnormality of the external tank thermistor. You certainly dont want that, do you? 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. 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. Eventually, they pay for themselves by reducing the water bills. Yes!!! Recirculate temp in is 67, temp out when just recirculating is 67. Shut off the appliance for half an hour and then restart. This comprehensive guide helps to make the operation and repair of your heater easier. Foreign materials like small pebbles may get into the recirculation pump. In his spare time, Oscar loves tinkering with electronics. I have the newest version pcb since I just bought the tankless. Change the thermistor if needed. For moving the pump to another sink, you would have to talk with a plumber. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Also, check the filters to see if they are clean. Categories Home Improvement, Patio, Lawn & Garden, Plumbing, Tools, Water Valve Handle Broke Off? This serves two functions: You save water. So you'll find the same info whether you're looking for the Navien 240A manual, the Navien NPE-240S manual, Navien NPE-180A manual or similar. If you have any questions about these pumps, how they work, or some calculations, you can give us the specifics in the comments below and well try to help you out. Bosch Tankless Water Heater Troubleshooting [A Complete Guide], Bosch Tankless Water Heater Error Codes [Ultimate Guide], Bosch Tankless Water Heater Wont Ignite [7 Easy Solutions]. Where does the circulation return line tie in, and where is this in relation to the Naviien unit, other fixtures, and appliances in the home? You just have to unplug the pump, and it will be turned off. Do new devs get fired if they can't solve a certain bug? What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? You can install it yourself (DIY circulation pump installation) or call a professional; more on that in the part about how much do hot water recirculating pumps cost. How Much Does 500 Watts Cost Per Hour? 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. Ensure the recirculation pump was installed correctly. All you have is a crossover valve underneath a sink somewhere also when plumbed correctly, all of that will only function with proper dip switch settings, perimeter settings, which is Pacific per heater model. The user manual for these devices (of which I own two) provides a pretty good plumbing diagram for proper install. Quite surprisingly for most homeowners, the biggest problem with this type of recirculation pump is getting cold water. Make sure there are no loose connections. Press the reset button to reset your device. Some brands/models dont include it. Let's hop in! That installation is incorrect. Rather than using the hard wired door bell style push button that comes with the kit, I bought this remote control unit (. To remedy the issue, consider increasing the gas supply to the heater. It can take anywhere from 10 seconds to 1 minute for the hot water to reach the faucet. Some pumps, in order to avoid needing a dedicated return path, will recirculate the water via the cold water supply, so getting some hot water from the cold supply would be normal in this case. Sure there is likely some distance between the recirculation line and the fixture which should me some time till hot water reaches. Just like everything with these three characteristics, it is time-consuming and challenging. Your Navien Recirculation Pump will make a humming noise like a refrigerator if you dont bleed the air out of the recirculation system. Thats all for today. The short answer is no, your water will still be pure. 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. Heres the thing: Both cold and hot water need to be supplied using the same pipe. This is the system you can see in the photos above. link to How to Connect a Generator to Your Tiny House Without a Transfer Switch, Electric RV Water Heater How to & Troubleshooting Guide, Richmond Water Heater How to & Troubleshooting Guide, Insinkerator Hot Water Dispenser How-to & Troubleshooting Guide. The issue is most likely, the flow sensor inside the unit is not spinning correctly. This happens when you have a huge heater and lower gas output. Turning off the water recirculating pump isnt a big deal. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. The estimated annual operating cost of the Navien tankless water heater, based on the yearly estimated residential use per US Energy Department test criteria, is $191. Watt recirculating pump installed on the water heater (pump plugged into standard 110/120V outlet, 3/4-inch pipe thread connectors, valve). That is a premium service however. If you are unsure of whether the recirculation pump was correctly installed, contact Navien technical center or the NSS agent who installed the heater. Get a sump pump and connect the cold service hose to the sump pump. Is this a common drawback with the under-sink crossover valve? We can go from there with up to 3 hours of dedicated live coaching on the telephone if needed. (std. Well, If you overuse your pump, it will start malfunctioning. It would be nice to get the hot water to the faucet especially the shower in the morning as quickly as possible. This gives you a negative return on investment (ROI), so. Nobody really likes waiting for the hot water to start flowing under the shower or doing the dishes, for example. Some sort of noise out of your Navien recirculation pump is normal. 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. The cold water inlet one thermistor is defective. I think it's 100F. The plumber said that he tied in both in the master bathroom and the kitchen but Ill crawl under the house to validate this. How do hot water recirculation pumps work to get hot water fast? I guess the recirculation line will be the only one that is copper. It depends on how the recirculation pump is installed, and some other factors, plumbers usually know this stuff pretty well. Those are quite significant savings. When you operated the hot water tap the last time you needed it, the water shuts off as soon as you turn off the tap. Circulation pumps can wreck havoc on your lines if you run them constantly due to friction at bends causing pinhole leaks. Here are four problems with these pump systems that you should be aware of. What about adding the NaviLink WiFi board and controlling it from your phone anywhere? You must log in or register to reply here. When attempting a flush of the system, I shut off the hot and cold valves that lead into the heater. All in all, its important to understand that recirculation pumps are worth the money. Press either the Up and the Down button to switch between any of these recirculation settings: It looks like you're using an ad blocker. Increase water pressure at the water heater. If this does not work, hire a professional to repair or replace any damaged parts. Because the recirculation pump ran with no water, the motor ended up burning out. Then, you can change the tank thermistor if needed. 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. Locate the reset button on the heaters front control panel. We have some suggestions for you if you want to buy the best wifi sockets. Get in touch with Navien technical support or a professional heater repairman. With two pipes, you can create a loop between the water heater and faucets. Lets look at the individual parts that make up the recirculation pump for hot water: If you want to install a recirculation pump, you start by getting the whole recirculating pump kit. Turn off the unit and check the valve's wiring and condition. Having a tankless water heater is an energy-efficient way of getting hot water. Why are physically impossible and logically impossible concepts considered separate in terms of probability? The timer has control over when the pump is working continuously. Privacy Policy. I recently had a 240A2 installed. Many systems turn on and off automatically to keep the water within a specified temperature range. Create a chart to regulate hot water usage. 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. An open or short thermistor can be the root cause of this problem. Read the users Navien nr-240a manual to get information on how to flush the heat exchanger and reset the remote for Navien tankless water heater. We recommend to use caution and seek the advice of qualified professionals. There is a circulator pump, but it still takes a long time for hot water to reach the upstairs bathrooms. If a hot water faucet is open, you can adjust the temperature only from 98-110 F (37-43 C). You need to run white vinegar through the system, to descale the water heater. Is there a way to tell if the cold pipe is circulatory/return line or cold water from the mains? Here are some simple instructions on how to turn on your Navien tankless water heater. Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. This gives users hot water when they need it, saving water and money. You can contact a plumber if necessary. Also, make sure you get the 1- pipe for the horizontal manifold, which will help even out the flow of the recirculators. Then remove the cold water filter off located next to the cold water isolation valve. Your article ended saying All in all, its important to understand that recirculation pumps are worth the money. Working well so far. The consent submitted will only be used for data processing originating from this website. However, the unit comes equipped with a standard 120V appliance cord and operates between 200 and 300 watts. Prevention of Modern Slavery Progress Reports. Once again, there are a few different things it could be. The buffer tank eliminates the "cold water sandwich" effect and issues of minimum flow rates commonly found in other tankless water heaters. 5.0 out of 5 stars 3 ratings. It tells you about the improper operation of the flow sensor. Another suggestion I can give you is to maintain and service your Navien water heater according to the manual. Locate the power button and press it to turn on the heater. toby sutton wife of frank sutton how to turn on navien recirculation pump If any of them are loose or disconnected, your circulator pump won't work. Is this correct for the function of the system? 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). 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. That means that all the costs of the hot water circulation pump are covered by the water savings. Hopefully its clear which is which when Im down there. Place the filter assembly back into the water heater and secure it with the screw. Thanks. We will presume that youre buying a hot water circulation pump for a household of 4 and that each person wastes about 2 gallons of water per day (mean value of Oak Ridge National Laboratorys study). The process to take apart the fitting which holds the flow sensor to "blow" it out clean is arduous, requiring drainage of the system etc., and has not solved the problem. For example, an open or shorted sensor causes this issue. Cookie Notice Solutions like- unplugging it, using a timer and using wifi sockets are convenient. He obtained his Bachelor of Science degree from the University Of Texas at El Paso. Not sure I am understanding. Ask Your Own HVAC Question b55db6.jpeg 6a7761.jpeg ee4ed0.jpeg cc7ba2.jpeg 8ec6a3.jpeg 32aa59.jpeg Hello David, well, the additional costs are a con here. Can this be moved to another sink in the house that is not used as often ? Older Navien heater models are prone to flow sensor issues. It is propelled only by water pressure. It can also damage your main water heater and can create recirculation problems. Lets look at the two most popular types: You can install hot water or tankless hot water recirculation pump in an existing or in a new home.