Most of information is available in the install manual but some of it requires a phone call to Navien support. Asking for help, clarification, or responding to other answers. Brand: Navien. This may temporarily help to remedy the issue. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Those are quite significant savings. Then what are we waiting for?
30000466A Navien Circulation Pump NAPU9GLPCT33 - amazon.com There is some issue with the front panel key. How Does A Hot Water Recirculation Pump Work? Turn the unit off. This error informs you there is something wrong while you reset the unit. If you have a Navien tankless water heater this can be done by simply pressing a . 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. In his spare time, Oscar loves tinkering with electronics. 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. Troubleshooting Navien NPE-240A Internal Recirculation Pump - YouTube 0:00 / 4:21 Troubleshooting Navien NPE-240A Internal Recirculation Pump RCGooner2002 240 subscribers Subscribe. Heres the thing: Both cold and hot water need to be supplied using the same pipe. I guess the recirculation line will be the only one that is copper. Ask an Expert Home Improvement Questions HVAC Questions Navien NPE-240s with external recirculating pump. Check this too: Electric RV Water Heater How to & Troubleshooting Guide. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. Let's hop in! Also, did you wire the PB from the Hot Button kit or only use the remote? Then replace the heater cover and turn the gas or power back on. First, place a " thick rubber between the pump and anything it will be mounted on. You May Forget to Purge The Recirculation Pump, 03. Close the cold and hot water inlet valves and then drain the water heater. This is done every time you close the faucet. This time of year, we dont need to have instant hot water circulating so we turned off the pump. When you are installing water system stuff, a lot of things can cause low pressure. Place a bucket underneath it to catch any water that drains when you remove the filter. You can return the item for any reason in new and unused condition: no shipping charges ; Here are four problems with these pump systems that you should be aware of. 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. Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. Therefore most homeowners try to cut down costs wherever possible, bypassing the recommended installation procedure. Solutions like- unplugging it, using a timer and using wifi sockets are convenient. (State-By-State Chart), How To Convert Therms To kWh? By installing a hot water circulation pump, you will have a hot shower right away. Its a piece of cake to bleed the air out of your Navien recirculation pump. If we take that the average price of water is $0.18/gallon (according to Statistas 2019 study), heres how much you can save on water with a recirculation pump: Water Savings = 2,920 gallons/year * $0.18/gallon = $525.60/year. If any of them are loose or disconnected, your circulator pump won't work. Now you have your socket, turn it off/on whenever you want! Otherwise, this will cause the shut-off valve to get damaged. To reduce that time significantly (and stop needlessly wasting water), we can install hot water recirculating pump. That means that the cold water is not actually cold; it will usually be slightly warm (at room temperature). Otherwise, turn it off. I have 5 connections including the recirculation in. Lets hop in! This gives users hot water when they need it, saving water and money. Reinsert the filter into the plastic assembly. When attempting a flush of the system, I shut off the hot and cold valves that lead into the heater. Why Does My RV Carbon Monoxide Detector Keep Going Off? You can isolate the pump from the vibration in two ways. Grundfos water recirculation pump may troubleshoot sometimes. It could be open or shorted. However, I have envious of those who have the NPE with the hot button and wifi link. Confirm the thermistor and wiring is in good condition. The short answer is no, your water will still be pure. Yes, you can turn off your hot water recirculating pump. The 3/4-inch pipe thread connectors are used to connect the pump to your existing pipes. 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. Make sure the major electrical cord is grounded correctly. Once the tank is thoroughly drained, clean the base of the heater. Additionally, you can install a 5-micron filter in the water inlet right before the heater to remove impurities from the water. Here are some of the leading causes of cold water production; Which means there isnt enough time for the water to heat up. Then remove the cold water filter off located next to the cold water isolation valve. Then re-insert the filter and screw it back in place. How can this new ban on drag possibly be considered constitutional? The cost of a separate recirculation pump would fall in the range of $200 and $500, depending on the size required. So, there is such a thing. If the problem persists, call a technician to fix the unit. Check if there is any gas leakage before turning it on after a couple of days. I recently had a 240A2 installed. It is caused by an open or shorted air pressure sensor. https://www.ebay.com/itm/12V-DC-MOMONTROL-RM11-/350575987090?hash=item519ff50992, Navien NPE-240A2 External circulation question, Navien NPE-240A and HotButton - DIP switches and parameters, Flushing Navien 240A set up for external bypass, Navien NPE External Recirculation Confusion. Yes!!! Navien tankless water heater recirculation March 31, 2016 At the push of a button, Navien 's HotButton accessory activates the internal recirculation pump and gas-fired burner to heat up the water in the supply lines. Navien has an aftermarket add on hot point or something that lets you control when the recirc is on. Make sure to follow the required instructions before and after you've turned it off for your safety. A family of 4 with normal water usage can expect to save $50-$75 a year. On the other hand, if you find no foreign stuff, ensure you purge the air out of the system. Next, clean the dirt-trap. Start by removing it from the heater so you can clean it properly. 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. It is a visible sign that your devices cold water inlet two thermistor is having some issues. 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. Im interested in information on a tankless water heater with a built in recirculating pump. Let the vinegar cycle through the cold side for 45 minutes. 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? If you fail to stop the noise after trying all the steps I mentioned, I bet there is a complex problem with the unit. Error Code E438 It means the circulation pump is not working correctly. 6\" Magnetic Nut setter Sethttps://amzn.to/2JdAckuMilwaukee 48-22-6330 Tongue and Groove Pliers Sethttps://amzn.to/3kfch0RGoPro Hero 8 Black Action Camera with Accessory Bundlehttps://amzn.to/34AGamfVeto Pro Pac Tech XL Tool Baghttps://amzn.to/2U1QqPFOLIGHT Bundle H2R LED Headlamp, 2300 Lumens Rechargeable Flashlighthttps://amzn.to/370rGiqAmprobe AMP-320 Clamp Meterhttps://amzn.to/2GNxUHeFluke 117 Electricians True RMS Multimeterhttps://amzn.to/3iFZP9tMilwaukee 2364-20 M12 Roverhttps://amzn.to/2HNvitKMilwaukee Rocket light 2132-20https://amzn.to/341OTPm #MIHeatingGuy #MichiganHeatingGuy Well, If you overuse your pump, it will start malfunctioning. . Fits These Models SEER = (1 EER100% + 42 EER75% + 45 EER50% + 12 EER25%)/100, Total Heat (BTU/hr.) 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. Refer to the user manual to locate the Hot Button and then press it to activate hot water recirculation. You can replace the sensor if needed. It is affordable and can easily fix your problem. So, keep reading till the end. There is something wrong with limit control. I have a tankless water heater with an external recirculating pump at the heater and a crossover valve under the kitchen sink. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. This serves two functions: You save water. Do you want to know the details? Unscrew the plug cover with a suitable screwdriver to remove it. This chapter will reveal all the possible culprits that cause the recirculation pump of your Navien to make a humming noise. 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? Think hot water loops returning to your boiler to get reheated (to stay hot) Think LOOPS!! 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.
plumbing - Why is my hot water circulator causing there to be hot water 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. Water recirculating pumps just circulate the water; the water pressure should stay the same. I think it's 100F. Just like everything with these three characteristics, it is time-consuming and challenging. Therefore, I can't drain the system. I agree the user manuals are very helpful. 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). (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). Is the plumbers reasoning valid here? How is an ETF fee calculated in a trade that ends in less than a year? Theoretically Correct vs Practical Notation. The temperature sensor, on the other hand, makes sure you dont needlessly use too much energy to heat the water. The buffer tank eliminates the "cold water sandwich" effect and issues of minimum flow rates commonly found in other tankless water heaters. Allow it to dry for some time before fixing it again. What video game is Charlie playing in Poker Face S01E07? Close the isolation valves to the cold-supply and recirculation lines. First, open and close the pressure relief valve, which is located near the units outlet.
What You Should Know Before Shutting off the Water Hello David, well, the additional costs are a con here.
Understanding Navien Recirculating Water Heater - Heating Help: The Wall The only problem you have is there is no check valves in place check valves or like stop signs that direct traffic check valves, direct to flow of water.
Do You Need A Recirculating Pump With A Tankless Water Heater? However, that shouldnt happen if you have turned the pump off.
You can turn off the recirculating pump in various ways. When building a house, its smart to think about hot water recirculation as well. Why isn't my Navien tankless water heater performing as it should? It depends on how the recirculation pump is installed, and some other factors, plumbers usually know this stuff pretty well. 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. The air will need to be bled out of the system. Well tackle the installation and running costs of a circulating pump in full near the end. A place for plumbing advice and help. Therefore, the total peak demand of hot water needed is the ideal size of the heater you should get. It will help you avoid common water heater issues and let you operate the unit smoothly. Apart from that, you can easily turn it on/off on your mobile whenever you wish. It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. Fortunately, Navien water heaters recycle hot water and always provide hot water. I am guessing that he only returned the HOT line, hence the delayed time in "INSTANT HOT", as the Naviens are sold as well as there 96% efficiency!! If necessary, replace them all. I recall it was p23 but it was definitely larger than p20. 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. 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. Get in touch with Navien technical support at 800-519-8794. House was built in late 1990s and is 2 story, built on a slab foundation. I have a clog, When the faucet is on the unit is indicating flow rate of 1.4 GPM which seems plenty and the recirculation mode is set to external & always on. What am I doing wrong here in the PlotLegends specification? It is important to note that recirculation pumps dont work continuously; they are used only when we open and close the faucet. (With Water Savings Analysis), Note On Tankless Water Heater Hot Water Recirculation Pumps (Double Trouble), How Much Electricity Does A Tankless Water Heater Use? It can also damage your main water heater and can create recirculation problems.
Hot Water Recirculating Pump: What You Should Know - Best San Diego In fact, however, the whole machinery of the hot water recirculating pump has to be activated for this to happen. Typically recirc lines connect at the furthest fixture and allows hot water to flow through the main trunk lines.
Navien 30010780B Circulation Pump - amazon.com Next, hook hoses to the valves, then open them to drain the water. Most importantly, the installer fails to mount the pump on the vibration isolators. The major difference with hot water pumps in new homes is that you can install a full recirculation pump system (Type #1). (std. Here is the summary of all the negative aspects of hot water circulation pumps: This is the key question. That may present a problem in the summer when you need cold water; turning the pump off during the summer months solves the problem. Your article ended saying All in all, its important to understand that recirculation pumps are worth the money. Hello Frank, one of the disadvantages of recirculating pumps is that you have to wait for cold water a bit. 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. Or invest in a larger water heater. Examine the controllers condition and replace it if required. If the external recirc is set up without this it will just run, defeating the purpose of hot water on demand. From the valve, try to loosen up the cap to remove air from the system. Working well so far. The best answers are voted up and rise to the top, Not the answer you're looking for? This is where the timer and temperature sensor come in. Reassemble the heater and turn on the hot and cold water valves. Navien NPE-240s with external recirculating pump. To remedy the issue, consider increasing the gas supply to the heater. Why Its Important To Turn Off The Water Recirculating Pump? Find products from Grundfos related to this subject. 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. You need to run white vinegar through the system, to descale the water heater. If required, replace the thermistor. It provides information about the problem with the fan motor. Hopefully its clear which is which when Im down there. Use your pump when you want to use it. When attempting a flush of the system, I shut off the hot and cold valves that lead into the heater. Make sure to follow the required instructions before and after youve turned it off for your safety. For more information, please see our
4 Common Hot Water Recirculation Pump Problems Do new devs get fired if they can't solve a certain bug?
NPE-A2 Series | Navien Return this item for free. FREE Returns . We and our partners use cookies to Store and/or access information on a device. We trusted him and thought everything was just fine as we were getting hot water throughout the house. You can turn it off during work hours, over the night, when you go on vacations, and so on. Thanks for contributing an answer to Home Improvement Stack Exchange! I got a Navien NPE 240A2 installed in my home with dedicated recirculating line (hopefully I got the lingo right!)
The disadvantages of recirculating pumps include waiting for cold waters (its a less-known disadvantage), having to install additional wiring, and so on. Turning off your water recirculating pump reduces damage. The second method seems to suggest the cold water at sinks will most likely have been run through the hot water tank. On top of that, the recirculating pumps also return the cold water in the pipes back to the heater. Also, check if the electrical cord is grounded correctly or not.
Hot Water Recirculating Pumps Explained: Why, How, Costs (+Tankless) (+ Installation Costs), How Many Amps Does A Tankless Water Heater Use? Is there a proper earth ground point in this switch box? How do hot water recirculation pumps work to get hot water fast? Get in touch with Navien technical support or a professional heater repairman to fix the issue. It only takes a minute to sign up. Legal Disclosure:Lildutchuncle.com provides and shares information on plumbing, heating & air quality, home improvement, and other DIY projects. But it will be best if you contact a certified plumber to fix this issue. Privacy Policy. It should come out of the hot water port. Pump the white vinegar into the cold side, up through your water heater, and out the hot side. A hot water recirculating pump will save you money, especially if you have a larger family. Press either the Up and the Down button to switch between any of these recirculation settings: Patrick. 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. Hi Mike, we think about water as hot vs. cold. We can go from there with up to 3 hours of dedicated live coaching on the telephone if needed. sounds like you need a different plumber to assess your situation. Quick summary on costs: Recirculating a pump is certainly useful if you want hot water quickly. If that fails, then the pump impeller might have disintegrated or the system water pressure may be below 0 at the pump suction causing the pump to cavitate. Can this be moved to another sink in the house that is not used as often ?
Carbon monoxide (CO) is a tasteless, colorless, odorless, and highly poisonous gas which can be deadly to humans in high concentrations. 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. 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 Make sure to follow the instructions before and after you turn off the pump. $44.90. JavaScript is disabled. If the problem persists after reset, replace the APS as soon as possible. When he is not busy trying not to electrocute himself, you can find him in the garden tending to his vegetables and chickens. Wash it under the water with a brush, let it dry, and then place it back. Check to see if the water valves are open. Its not exactly normal. The pump works on the existing pipes; it basically sends the leftover water back to the boiler or the heater. If your system displays this code, you need to confirm the water pressure is within good ranges.
New build - tankless hot water heater - recirculation pump needed? - Houzz Some sort of noise out of your Navien recirculation pump is normal. And the heater has been set to recirculation mode. Turn off the device for half an hour and confirm everything is working correctly. We have one faucet in the kitchen that has instant scalding hot water the second you turn it on . Place the filter assembly back into the water heater and secure it with the screw. 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. And. A water recirculating pump is also similar to this. 08. The recirculation pump will make a squeaking noise if the installer fails to install the primary loop correctly. Ensure all return and supply lines are open and check the 2-way valves direction. (1000-3000+ Sq Ft Homes), Thermostat Says Heat On But No Heat? It means there is some issue with the flow sensor or switch. Disconnect the power supply to the water heater. Minimising the environmental effects of my dyson brain.
Having a tankless water heater is an energy-efficient way of getting hot water. Here is the list of all the parts you need to install a recirculation pump. It's unfortunate he's not around to explain all this to you. It may not display this or other websites correctly. The bigger the house, the longer these water pipes usually are, and the longest it takes to get hot water. Inspect the water feeder valve, water pressure, and water pressure relief valve. Then descale a flush the heater following the steps listed below. Unfortunately, the heat exchanger cannot be fixed and has to be replaced. That is a premium service however. I was under impression that with the recirculation pump this wouldnt be an issue (the wait time) and the fact that the water is just warm otherwise feels wrong. Side question: are you able to explain to me what always on means? Can you turn it off in a tankless that has it built in? That's an interesting solution. I just hooked up the NR-20DU wired remote control ($80 from Fergusons) and programmed 3 on/off recirculating cycles based on family needs. He says both the master bath and the kitchen. Purchasing a timer will also fix the problem. Ensure you mount the pump securely. On a side note, if your Grundfos circulating pump is making sounds, it may have air locks or installation problems. Older Navien heater models are prone to flow sensor issues. This breaks down the scale and flushes out the sediment. This propels the water to your faucet or shower much quicker. This item: Navien 30010780B Circulation Pump. Now, that comes to the question, can I turn off my hot water recirculating pump? Hi: 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. It worked perfectly. You just have to unplug the pump, and it will be turned off. 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. This is because the sensors are corroded over time which causes them to shut the heater down. 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 . 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. 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. Any tips on where to verify if I have a dedicated return line? 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. It can occur due to an open or short sensor. Can I swap out the mainboard in the NR240A to an NPE240A board to get all that features?
How To Turn On A Navien Tankless Water Heater | GardeningLeave There are filters that prevent the sediment from entering the water flow. Navien Recirculation Pump Noise [4 Easy Solutions], 02. 2. First, find the control panel on the front of the unit. Solar panels, wiring, old TVs and sometimes DIY powerwalls. The Navien is smart enough to stop recirculation when it recognises hot water has made the entire loop. The default setting is usually around 120 degrees Fahrenheit. link to Why Does My RV Carbon Monoxide Detector Keep Going Off? The water heater is set to 120 F (49 C) by default. rev2023.3.3.43278. The average electric tankless water heater needs at least 120 amps to work. The heating supply thermistor is defective. It sounds awful and not like any other recirculating pump I've ever heard. You can change the cold water inlet thermistor if necessary. Navien ComfortFlow is the first and only system that incorporates a built-in insulated buffer tank and recirculation pump. The error code E441 informs about the open thermistor or short circuit problem. Sure there is likely some distance between the recirculation line and the fixture which should me some time till hot water reaches. That installation is incorrect.
Navien NPE-240s with external recirculating pump. - JustAnswer The E760 informs you that its time to flush your heater. The error code E445 tells about the defect of the bypass mixing valve. 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. Buzzing noise out of the recirculation pump will be general if you or your plumber dont mount the pump securely. Others run on a timer. Therefore, when it malfunctions, it is a sign that the heater has another major underlying issue. The electric recirculation pump uses this other pipe to pump the hot water back into the boiler or water heater.