After using this amount of time, hardware gets old and starts to malfunction. What kind of range do you get from the remotes? You can contact a plumber if necessary. Minimising the environmental effects of my dyson brain. Once again, there are a few different things it could be. The timer has control over when the pump is working continuously. Is there a recirculating pump for the tankless water heater known as Trutankless? Both options use less energy than a continuously-running system. Thats why most homeowners prefer installing the recirculation pump without the extra pipe. Those are quite significant savings. We and our partners use cookies to Store and/or access information on a device. Start by turning off the service valves and removing the hoses. What am I doing wrong here in the PlotLegends specification? How do hot water recirculation pumps work to get hot water fast? Any tips on where to verify if I have a dedicated return line? This propels the water to your faucet or shower much quicker. Hello Frank, one of the disadvantages of recirculating pumps is that you have to wait for cold water a bit. An open or short thermistor can be the root cause of this problem. 30000466A Navien Circulation Pump NAPU9GLPCT33 . I have a tankless water heater with an external recirculating pump at the heater and a crossover valve under the kitchen sink. It has a timer that turns on the pump at regular intervals, mostly during peak usage times. 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. Water recirculating pumps just circulate the water; the water pressure should stay the same. How? 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 By installing a hot water circulation pump, you will have a hot shower right away. Solar panels, wiring, old TVs and sometimes DIY powerwalls. We hope we were able to help you out with our guide. Remove the intake filter and properly wash it using a brush beneath running water. 1. The cold water inlet one thermistor is defective. If any particular ad is your REASON for blocking ads, please let us know. . Many systems turn on and off automatically to keep the water within a specified temperature range. On a side note, if your Grundfos circulating pump is making sounds, it may have air locks or installation problems. Yes, you can turn off your hot water recirculating pump. While you may have a general understanding of the listed electrical issue above, you should not attempt to handle any electrical work unless you are a licensed electrician. 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. Now, we have to check if these costs are balanced out by the water savings. This gives users hot water when they need it, saving water and money. Make sure that the drain hose will empty the scaling solution into the bucket. Therefore most homeowners try to cut down costs wherever possible, bypassing the recommended installation procedure. Otherwise, turn it off. If you've got a tankless water heater installed that doesn't come with a built-in recirculation pump, then in such a scenario, a separate recirculation pump can do the trick for you. If youre using this pump and cant fix it yourself, you can call a professional mechanic to fix it. The exhaust thermostat is malfunctioning. A family of 4 with normal water usage can expect to save $50-$75 a year. Turn off the unit and check the valves wiring and condition. Also, make sure you get the 1- pipe for the horizontal manifold, which will help even out the flow of the recirculators. Your question, can I turn off my hot water pump? has been answered. 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. When we dont have to use it, why keep it on? Using a corrosion-free flow sensor made of stainless steel is a better option. I recently had a 240A2 installed. Second, you can use a flex connector to isolate the pump. Check to see if the water valves are open. If the problem persists, call a technician to fix the unit. Remove and clean the cold air intake filter. If you have a Navien tankless water heater this can be done by simply pressing a . Heres the thing: Both cold and hot water need to be supplied using the same pipe. It is caused by an open or shorted air pressure sensor. It means there is some issue with a water pressure sensor. If yes, clean them. It clips on the side of the PCB board without screws and then you connect a ribbon cable to the PCB. When the water is sufficiently hot, the temperature sensor will shut off the power to the recirculation pump to conserve energy. This time of year, we dont need to have instant hot water circulating so we turned off the pump. It can take anywhere from 10 seconds to 1 minute for the hot water to reach the faucet. 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. This extra pipe is installed parallel to conventional piping. ($0.05 $0.22/h), How Much Does 1000 Watts Cost Per Hour? Check to see if the warranty is still valid and contact the manufacturer. If we dont use it, we waste a lot of water. The recirculation pump will make a squeaking noise if the installer fails to install the primary loop correctly. The cost of a separate recirculation pump would fall in the range of $200 and $500, depending on the size required. Im interested in information on a tankless water heater with a built in recirculating pump. The consent submitted will only be used for data processing originating from this website. This issue is more common in older heater models. Contents show There is a circulator pump, but it still takes a long time for hot water to reach the upstairs bathrooms. Make sure to follow the required instructions before and after youve turned it off for your safety. To install a full recirculating pump system, you need to consult with a plumber because you will need an extra pipe. In fact, however, the whole machinery of the hot water recirculating pump has to be activated for this to happen. This depends on how long you leave it on and how often you use it. It is a visible sign that your devices cold water inlet two thermistor is having some issues. I just hooked up the NR-20DU wired remote control ($80 from Fergusons) and programmed 3 on/off recirculating cycles based on family needs. Thanks. Also the unit needs to be set to utilize the recirculation feature. Make sure the electrical cord is grounded. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. Is it possible to create a concave light? Get it as soon as Wednesday, Mar 1. Then replace the heater cover and turn the gas or power back on. Tankless Water Heater Wire Size Calculator: What Gauge Wire (AWG)? I guess the recirculation line will be the only one that is copper. A water recirculating pump is also similar to this. So, keep reading till the end. 2. The default setting is usually around 120 degrees Fahrenheit. The recirculation timer is set to operate ever 15 minutes, even though we are often not at the property. How Much Does 500 Watts Cost Per Hour? Calculator + Chart (Natural Gas), Average Gas Bill For 1-Bedroom Apartment: State-By-State Cost Analysis, Average Electricity Bill For 4 Person Household (Survey Analysis), How Many kWh Per Day Is Normal? rev2023.3.3.43278. Therefore, I can't drain the system. Now, when installed, the recirculating pump makes it seem that the hot water starts flowing right away like magic. We have one faucet in the kitchen that has instant scalding hot water the second you turn it on . The hot water recirculation pump works by: The very phrase recirculating comes from this pump returning the unused hot water back into the tank. Thanks for confirming and letting me know about the potential damage to the circulating pump as that hadn't occurred to me. The average electric tankless water heater needs at least 120 amps to work. Solution: Ensure all return and supply lines are open and check the 2-way valve's direction. It means there is some issue with the flow sensor or switch. Why are physically impossible and logically impossible concepts considered separate in terms of probability? 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. The E615 tells you about the irregularity in input and memory. How Does A Hot Water Recirculation Pump Work? It is located on the lowest corner opposite the on and off button. 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. It means there is some issue with the OT-remote controllers operation. It tells you about the abnormality of the external tank thermistor. The operations manuals above cover all Navien NPE-A and NPE-S series condensing tankless water heaters. Well, If you overuse your pump, it will start malfunctioning. Navien NPE-240 A Recirculation Line www.amazon.com/shop/miheatingguy Milwaukee 2131-20 M18 ROCKET Dual Power Tower Light Hot Water Recirculating Loop Owen Perkins 81K views 3 years ago NAVIEN. Examine and clean the filter in a cold water inlet. All you have to know is how to turn it off. Return this item for free. Well tackle the installation and running costs of a circulating pump in full near the end. Note on tankless hot water heater recirculation pumps (double trouble solved). From the valve, try to loosen up the cap to remove air from the system. If any of them are loose or disconnected, your circulator pump won't work. Crazy coincidence that I ran into your post because I've been researching the same issue. However, that shouldnt happen if you have turned the pump off. When you are installing water system stuff, a lot of things can cause low pressure. The error code E736 informs about the issue in cascade communication, and error code E740 indicates that the outdoor temperature sensor is not working correctly. Did you mount the contact switch next to the Navien? This type of hot water recirculation system is most appropriate for new homes; homes that are in the 3rd or 4th part of the building process. Also, check the filters to see if they are clean. Recirculation valve for use with NPE-A series tankless water heaters Designed for recirculation of domestic hot water in applications where a dedicated return line is not available. So, get 2 braided ss flex connectors and install them on the inlet and the outlet of the pump. On top of that, the recirculating pumps also return the cold water in the pipes back to the heater. Any thoughts on that? T = the water cooling, normally 5 C determined at the farthest consumption point [C]. If your system is re-circed as close as possible to the fixtures (ask yourself do I have two hot waterlines for each fixture?) JavaScript is disabled. Worst case is your plumber might have to call since they require them to maintain it. That install is exactly as specified in the newer manuals. Most of information is available in the install manual but some of it requires a phone call to Navien support. 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. Foreign materials like small pebbles may get into the recirculation pump. last week. Plug n play (after removing front panel to access the plug). 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 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. Does anyone know the logic behind how Navien controls their internal recirculation pump when it is circulating with an external loop? Press the Power button on the front panel to turn off the water heater. I obviously dont know much about this but the plumber is giving reasons that feel like he is making up dont make sense to me: 1. Costs associated with hot water circulation pumps (parts + installation + DIY savings). Rather than using the hard wired door bell style push button that comes with the kit, I bought this remote control unit (. Learn more about Stack Overflow the company, and our products. The buffer tank eliminates the "cold water sandwich" effect and issues of minimum flow rates commonly found in other tankless water heaters. I have alos checked my HeatBox settings to ensure the temp is set high enough for my domestic supply (set to around 120 degrees). toby sutton wife of frank sutton how to turn on navien recirculation pump However, many first-time and beginner road travelers and RV How to Connect a Generator to Your Tiny House Without a Transfer Switch. The pump saves this cold water and recirculates it in the hot water. Does anybody have any thoughts of what I should get checked out? Examine and wash the intake air filter underneath running water using a toothbrush. 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. Is this correct for the function of the system? Turns out, make sure you isolate the recirculation pump from the vibration. 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. Connect and share knowledge within a single location that is structured and easy to search. Save my name, email, and website in this browser for the next time I comment. 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. It provides information about the problem with the fan motor. You will see in the photo that the cold water valve shuts off water into the domestic water inlet but doesn't have a shut off into the circulation water inlet. Then, read the manual on Navien tankless water heater how to reset. 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. The issue is most likely, the flow sensor inside the unit is not spinning correctly. It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. Only 19 left in stock - order soon. 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. Timers and wifi sockets are quite cheap. Otherwise, this will cause the shut-off valve to get damaged. Then what are we waiting for? What is more, you can, by these estimates, reduce the future water bill considerably and actually profit nicely just by not needlessly waiting for water when youre waiting for the hot water to kick in. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. Not sure I am understanding. Make sure the exhaust pipe is not obstructed. But, making sure youre doing it the right way is important. Is there a check valve? Turning off your water recirculating pump reduces damage. This is the system you can see in the photos above. We dont. Note: Remember to turn off power to the heater before replacing the gasket. Press the reset button to reset your device. Ensure that all hot water faucets are closed, and ensure that the internal circulator and any external circulating pumps are off. Turn off the device for 30 minutes and then restart it. If a hot water faucet is open, you can adjust the temperature only from 98-110 F (37-43 C). Turn off the device and examine the APSs condition. This is because the motherboard or control board is the units brain responsible for receiving and transmitting information in the heater. That means that this household wasted 8 gallons of water per day just waiting for hot water. Can this be moved to another sink in the house that is not used as often ? It would be nice to get the hot water to the faucet especially the shower in the morning as quickly as possible. The heating supply thermistor is defective. So, saving water is the main reason for calling a recirculation pump eco-friendly. How do I align things in the following tabular environment? On top of that, the recirculating pumps also return the cold water in the pipes back to the heater. Grundfos water recirculation pump may troubleshoot sometimes. Depending on the age of your Navien NPE-A model, he did you a favor. You are using an out of date browser. link to Why Does My RV Carbon Monoxide Detector Keep Going Off? 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. I have 5 connections including the recirculation in. For example, if you get the tees backward, the recirculation pump will not function properly. Then turn on the heater and then your pump. A hot water recirculation pump can be sized for a given system using the following formulas: Water flow qc = /T x 4200 This serves two functions: You save water. 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 This unit doesnt have dip switches as far as I undersrand. Also you need not be concerned about pump damage. Then descale a flush the heater following the steps listed below. It could be open or shorted. Go along the steps described below to set the recirculation settings. If necessary, replace them all. I have an NR240A for about 10 years now. If your system displays this code, you need to confirm the water pressure is within good ranges. 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. Circulation pumps can wreck havoc on your lines if you run them constantly due to friction at bends causing pinhole leaks. Examine the thermistors condition and pump wiring connectors. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. 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. If the issue persists, contact your original installer or an NSS to service the sensor. if you do have an external recirc line BUT it was installed when the Navien , then see if you can find where the recirc line connects to the hot water line - maybe it's serving a portion of your fixtures and the other fixtures are not benefiting from the recirculation. The user manual for these devices (of which I own two) provides a pretty good plumbing diagram for proper install. Its clearly not always running as I can see it says standby on the display most of the time. The filter is located at the top left of the water heater. Confirm the thermistor and wiring is in good condition. Turns out, make sure you isolate the recirculation pump from the vibration. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Why Does My Stiebel Eltron Tempra High-limit Switch Keep Tripping. Next, clean the dirt-trap. Start by removing it from the heater so you can clean it properly. What disadvantages, beside cost???? Solutions like- unplugging it, using a timer and using wifi sockets are convenient. The air will need to be bled out of the system. For most existing homeowners, integrating a recirculating home pump comfort system on top of the existing piping makes much more sense: Heres why this is the most popular type of hot water recirculating pump in homes: You use the existing water pipe alone. 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 . 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. The water heater will retain your settings during a power outage. That is a premium service however. Press either the Up and the Down button to switch between any of these recirculation settings: This breaks down the scale and flushes out the sediment. Pour two gallons of white vinegar into a 5gallons bucket. Let the vinegar cycle through the cold side for 45 minutes. This item: Navien 30010780B Circulation Pump. 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. To reduce that time significantly (and stop needlessly wasting water), we can install hot water recirculating pump. The error code E445 tells about the defect of the bypass mixing valve. Get in touch with Navien technical support or a professional heater repairman to fix the issue. The circulation return needs to come from a loop at an end of the hot supply line. but you stopped short for me. We always take the pros vs. cons approach because nothing is perfect. The best answers are voted up and rise to the top, Not the answer you're looking for? I recommend you disassemble the recirculation pump from the unit and inspect it carefully for foreign materials. Take care! A place for plumbing advice and help. Now, you have to know the hows for reducing damage. For example, if you have a person showering and another individual shaving. 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. An example of data being processed may be a unique identifier stored in a cookie. The major difference with hot water pumps in new homes is that you can install a full recirculation pump system (Type #1). For moving the pump to another sink, you would have to talk with a plumber. Ask an Expert Home Improvement Questions HVAC Questions Navien NPE-240s with external recirculating pump.
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