Another suggestion I can give you is to maintain and service your Navien water heater according to the manual. Minimising the environmental effects of my dyson brain. I guess the recirculation line will be the only one that is copper. 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. How Much Does 500 Watts Cost Per Hour? All in all, its important to understand that recirculation pumps are worth the money. It can take anywhere from 10 seconds to 1 minute for the hot water to reach the faucet. Examine the thermistors condition and pump wiring connectors. The second method seems to suggest the cold water at sinks will most likely have been run through the hot water tank. 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. Call Navien and explain if yours is older. The heater turns off automatically when the flue pipe surpasses 149 degrees Fahrenheit. Check to see if the warranty is still valid and contact the manufacturer. Note on tankless hot water heater recirculation pumps (double trouble solved). When building a house, its smart to think about hot water recirculation as well. Get in touch with Navien technical support or a professional heater repairman to fix the issue. The recirculation pump saves on water bills by reducing the time to get hot water. Place the filter assembly back into the water heater and secure it with the screw. I kind of feel like he is trying to get away with something that wasnt installed properly but hopefully I am wrong. It would be nice to get the hot water to the faucet especially the shower in the morning as quickly as possible. Side question: are you able to explain to me what always on means? There is some issue with the front panel key. You can change the cold water inlet thermistor if necessary. Does the thing have a 'vacation' mode? Not only that, by now you should know how to turn it off and why its important to do so. Turn off the device for half an hour and confirm everything is working correctly. 2. Having a tankless water heater is an energy-efficient way of getting hot water. The average electric tankless water heater needs at least 120 amps to work. Crazy coincidence that I ran into your post because I've been researching the same issue. First, open and close the pressure relief valve, which is located near the units outlet. Also, did you wire the PB from the Hot Button kit or only use the remote? 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? Well tackle the installation and running costs of a circulating pump in full near the end. Turn off the unit and check the valve's wiring and condition. NEC 310.16 Table: Copper And Aluminum Wire Ampacity Chart, NEC 310.12 Table: Wire Sizes For 100-400 Amp Services (83% Rule), kWh To Therms Calculator + Conversion Chart (1 kWh = 0.03412 Therms), MMBTU To Therms Calculator + Chart (1 MMBTU = 10 Therms), Therms To MMBTU Calculator + Chart (1 Therm = 1/10 MMBTU), AWG To Circular Mils Chart (For 4/0 AWG To 20 AWG). Hello David, well, the additional costs are a con here. You can also identify and fix them yourself. So, there is such a thing. Overusing your recirculating pump also increases your electricity bill. 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. It provides information about the problem with the fan motor. If youre using this pump and cant fix it yourself, you can call a professional mechanic to fix it. You can contact a plumber if necessary. Locate the reset button on the heaters front control panel. 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. Works great and saves the copper pipes. There are special tankless water heater recirculation pumps for Navien, Rinnai, and Rheem units; we will cover them all. Without the need for extra piping, this type of hot water circulation pump system also comes at a much lower cost. Advantages and disadvantages of hot water circulation pumps. 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. How do I align things in the following tabular environment? It worked perfectly. Because the recirculation pump ran with no water, the motor ended up burning out. The heating supply thermistor is defective. This extra pipe is installed parallel to conventional piping. Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? 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. Plug n play (after removing front panel to access the plug). Others run on a timer. This breaks down the scale and flushes out the sediment. Costs associated with hot water circulation pumps (parts + installation + DIY savings). You can return the item for any reason in new and unused condition: no shipping charges ; Its clearly not always running as I can see it says standby on the display most of the time. sounds like you need a different plumber to assess your situation. Separate Recirculation Pumps. The large valves should be in the off position, whereas the service valves should be in the on place. 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. It can also damage your main water heater and can create recirculation problems. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. I bought the. 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. The cold water pipe coming from the wall goes into the domestic water inlet on the tankless heater, as it should. Also, turn off the water heater, and recirculate the pump. A hot water recirculation pump can be sized for a given system using the following formulas: Water flow qc = /T x 4200 Our articles, products and services are for informational purposes. Can I swap out the mainboard in the NR240A to an NPE240A board to get all that features? Where did you find that info? Press the M (menu) button on the front panel and choose the 1. 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. The short answer is no, your water will still be pure. Turn off the device for 30 minutes and then restart it. 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. Place a bucket underneath it to catch any water that drains when you remove the filter. That installation is incorrect. In large systems, however, it may be advantageous to use controlled pumps to enable adjustment of the flow when starting up the system and to be able to apply temperature control. Increase water pressure at the water heater. Then remove the cold water filter off located next to the cold water isolation valve. Circulation pumps can wreck havoc on your lines if you run them constantly due to friction at bends causing pinhole leaks. If the problem persists after reset, replace the APS as soon as possible. Apart from that, you can easily turn it on/off on your mobile whenever you wish. Turns out, make sure you isolate the recirculation pump from the vibration. It clips on the side of the PCB board without screws and then you connect a ribbon cable to the PCB. Lets hop in! 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. Press the + (Up) or (Down) buttons until the desired temperature appears on display. Make sure the exhaust pipe is not obstructed. There are filters that prevent the sediment from entering the water flow. 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. Since pumps cost about $200 each, the recirculating pump will pay for itself in 3-4 years. Besides, the E782 indicates that there is something wrong with the main panel communication. Get a sump pump and connect the cold service hose to the sump pump. We have to keep the valve on and slowly hot water comes out. Cookie Notice This requires the installation of an additional water pipe. What am I doing wrong here in the PlotLegends specification? The exhaust thermostat is malfunctioning. This made me suspicious that water was coming from the mains. 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 . Difficulties with estimation of epsilon-delta limit proof. A hot water recirculating pump will save you money, especially if you have a larger family. Its not exactly normal. Hello Lucy, in most cases, you have that option. Not Mounted The Pump Securely or Isolate It, Navien Tankless Water Cycles On And Off [5 Easy Solutions]. Thats 2,920 gallons of water per year wasted. Working well so far. You can contact a plumber if necessary. Then, you can change the tank thermistor if needed. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. Then, tighten up the cap again once you remove all the air from the loop. If a hot water faucet is open, you can adjust the temperature only from 98-110 F (37-43 C). The cold water pipe coming from the wall goes into the domestic water inlet on the tankless heater, as it should. Navien Recirculation Pump Noise [4 Easy Solutions], 02. Rather than using the hard wired door bell style push button that comes with the kit, I bought this remote control unit (. Examine the controllers condition and replace it if required. Second, you can use a flex connector to isolate the pump. Check to see if the water valves are open. If you'd like to support the site, please allow ads. Ensure the recirculation pump was installed correctly. It also may be as simple as a dip switch in the tankless unit itself. Can this be moved to another sink in the house that is not used as often ? Hopefully its clear which is which when Im down there. Is this correct for the function of the system? It may not display this or other websites correctly. 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. Create a chart to regulate hot water usage. Make sure to follow the required instructions before and after youve turned it off for your safety. As well as any future additions, Usage of household gadgets that require hot water, Automatic dishwasher 14 gallons or 1.5 GPM, Washing machine 32 gallons to wash the clothes or 2 GPM. Buzzing noise out of the recirculation pump will be general if you or your plumber dont mount the pump securely. Press the reset button to reset your device. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. 5.0 out of 5 stars 3 ratings. It sounds awful and not like any other recirculating pump I've ever heard. It does save you water but it also costs you a bit of electricity. Free returns are available for the shipping address you chose. Then what are we waiting for? The upfront cost is a major deterrent when deciding if it makes sense to install a circulation pump or not. We don't tend to provide any plumbing advice or any advice that should come from a certified professional. IF it does, could it be controlled remotely? Turn the pump off and dump the vinegar. . Just like everything with these three characteristics, it is time-consuming and challenging. Hello Sam, you can shut off the recirculating pump to the kitchen faucet. Reassemble the heater and turn on the hot and cold water valves. Here is the final install. You dont have to install an additional pipe. Dont hesitate to switch the tees around if you get them backward. 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. How Does A Hot Water Recirculation Pump Work? How is an ETF fee calculated in a trade that ends in less than a year? Reddit and its partners use cookies and similar technologies to provide you with a better experience. I don't hear the heater "fire up" right away when the tap is opened and can't tell if the recirculation pump is running. How To Turn Off A Water Recirculating Pump? Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. How To Fix Navien Tankless Water Heater Code E003? 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 . Reconnect the power supply to the water heater. 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. Like with most things, a lot of noise coming from your hot water recirculation pump isn't a good sign. So, ensure you purge the air out of the recirculation pump to operate the unit quietly. This gives users hot water when they need it, saving water and money. Now you have your socket, turn it off/on whenever you want! Does anyone know the logic behind how Navien controls their internal recirculation pump when it is circulating with an external loop? Recirculation Settings by pressing down the OK button. What Parts Are In The Hot Water Circulation Pump Kits? Hello Frank, one of the disadvantages of recirculating pumps is that you have to wait for cold water a bit. 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. Why Does My RV Carbon Monoxide Detector Keep Going Off? When attempting a flush of the system, I shut off the hot and cold valves that lead into the heater. Why are physically impossible and logically impossible concepts considered separate in terms of probability? You will not get hot water instantly. . We recommend to use caution and seek the advice of qualified professionals. they have an accessory called the HotButton (PZZZ-00046). It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. When you are installing water system stuff, a lot of things can cause low pressure. 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. Learn more about Stack Overflow the company, and our products. They are not without upfront costs or disadvantages. Tankless Water Heater Breaker Size Calculator: What Size Breaker? 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. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. Fits These Models Is there the same solution for NR240A? "The recirculating pump costs about the same as operating a 25-watt light bulb," says Umberto Griccino, a commercial plumber and HouseGrail consultant. When its time to work with a recirculating pump, you should follow some instructions to avoid further hassles. Here is the list of all the parts you need to install a recirculation pump. Turn the unit off. Then, turn it on again. Just one Navien water heater manual for all NPE-A and NPE-S units. 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. Continue reading below Our Video of the Day 1. Many systems turn on and off automatically to keep the water within a specified temperature range. 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. In fact, however, the whole machinery of the hot water recirculating pump has to be activated for this to happen. This comprehensive guide helps to make the operation and repair of your heater easier.