some homes require multiple recirc lines in order for all fixture group to benefit. If this does not work, hire a professional to repair or replace any damaged parts. Legal Disclosure:Lildutchuncle.com provides and shares information on plumbing, heating & air quality, home improvement, and other DIY projects. Turning off the water recirculating pump isnt a big deal. What disadvantages, beside cost???? 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. 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. To reduce that time significantly (and stop needlessly wasting water), we can install hot water recirculating pump. How Does A Hot Water Recirculation Pump Work? Thats 2,920 gallons of water per year wasted. 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. You are using an out of date browser. air), Latent Heat (BTU/hr) = 0.69 x CFM x gr. Once the tank is thoroughly drained, clean the base of the heater. How Much Does 500 Watts Cost Per Hour? 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. Hello Lucy, in most cases, you have that option. Therefore, the only task you can attempt on this list is the gasket replacement for the leaking water connection. Why Its Important To Turn Off The Water Recirculating Pump? We were advised of this upon installation. To remedy this, you can take the two clamps off the sensor, pull it out and clean it. Well tackle the installation and running costs of a circulating pump in full near the end. You can adjust the temperature while the display is flashing. Press the M (menu) button on the front panel and choose the 1. It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. So, get 2 braided ss flex connectors and install them on the inlet and the outlet of the pump. First, place a thick rubber between the pump and anything it will be mounted on. However, I have envious of those who have the NPE with the hot button and wifi link. The timer has control over when the pump is working continuously. In his spare time, Oscar loves tinkering with electronics. 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. Brand: Navien. If enabled you would find that your hot water is ready to go almost anytime you need it, without a long wait. This serves two functions: This is also true for tankless water heaters. 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 Hi Howy, well, the circulating pumps are usually powered by electricity, so they dont use gas. All done in software. A hot water recirculation pump can be sized for a given system using the following formulas: Water flow qc = /T x 4200 Both of those spots are problematic though. The short answer is no, your water will still be pure. Should I keep my 5-year-old electric tank heater as a storage unit if I am about to install a new gas tankless heater? Connect a regular garden hose to the hot side service valve. Here is the summary of all the negative aspects of hot water circulation pumps: This is the key question. 2 Types Of Hot Water Recirculation Pumps Used In Homes, Type 2: Recirculating Home Pump Comfort System, Advantages And Disadvantages Of Hot Water Recirculation Pumps, How Much Do Hot Water Circulation Pumps Cost + Installation Cost + Running Cost? Why Does My RV Carbon Monoxide Detector Keep Going Off? 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. If you add a powerful hot water circulation pump at the heater (not under the sink), the hot water will reach the faucet much faster. The recirculation pump is fixed on the water heater. Quite surprisingly for most homeowners, the biggest problem with this type of recirculation pump is getting cold water. Categories Home Improvement, Patio, Lawn & Garden, Plumbing, Tools, Water Valve Handle Broke Off? Make sure to follow the required instructions before and after you've turned it off for your safety. We have some suggestions for you if you want to buy the best wifi sockets. Disconnect the power supply to the water heater. last week. Use your pump when you want to use it. Thats kind of why the water heater still has to do some work (it turns on); its not a lot of heating but some heating is usually required. 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. Continue with Recommended Cookies. Shut off the appliance for half an hour and then restart. It only takes a minute to sign up. 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 This depends on how long you leave it on and how often you use it. Press question mark to learn the rest of the keyboard shortcuts. . The only place that quickly gets hot (and really hot) is the guest bath which happens to be right next to the water heater. The electric recirculation pump uses this other pipe to pump the hot water back into the boiler or water heater. The recirculation timer is set to operate ever 15 minutes, even though we are often not at the property. 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. 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 Also, as I'm taking a closer look at it, I'm concerned that some key things may be amiss. Older Navien heater models are prone to flow sensor issues. Refer to the user manual to locate the Hot Button and then press it to activate hot water recirculation. Using a corrosion-free flow sensor made of stainless steel is a better option. Check this too: Electric RV Water Heater How to & Troubleshooting Guide Make sure there are no loose connections. Privacy Policy. The default setting is usually around 120 degrees Fahrenheit. It shows that the heating return thermistor is not working correctly. There is some issue with the front panel key. To remedy this issue, turn off the heater for some time and restart it. 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? We might be able to do something about it. Here are the leading causes of strange noises coming from your heater; Hire a professional or installer to repair your heater to avoid damaging the heater and voiding your warranty. Question: Can a recirculating pump last for 10-15 years?Answer: If you use it properly, it should last at least 10-15 years. I've bled the system top and bottom and even removed the return line then switched to internal pump yet it still makes this noise. Open the pressure relief valve. Open the hot and cold service ports and turn the pump on. Air in the line: If there has been a power outage or air has gotten into the line for another reason, the pump can make a lot of noise. You can contact a plumber if necessary. A family of 4 with normal water usage can expect to save $50-$75 a year. To install a full recirculating pump system, you need to consult with a plumber because you will need an extra pipe. This time of year, we dont need to have instant hot water circulating so we turned off the pump. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. Turns out, make sure you isolate the recirculation pump from the vibration. Navien has an aftermarket add on hot point or something that lets you control when the recirc is on. - If there is not the fore mentioned set up he probably did the best he could do without re plumbing your house with double hot (returns to your Navien! Then replace the heater cover and turn the gas or power back on. link to Why Does My RV Carbon Monoxide Detector Keep Going Off? He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. An example of data being processed may be a unique identifier stored in a cookie. Note: Remember to turn off power to the heater before replacing the gasket. 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 . 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. Solutions like- unplugging it, using a timer and using wifi sockets are convenient. Dont hesitate to switch the tees around if you get them backward. It is propelled only by water pressure. The heater turns off automatically when the flue pipe surpasses 149 degrees Fahrenheit. Your article ended saying All in all, its important to understand that recirculation pumps are worth the money. 3. But in my case its significant amount of time and it only really gets hot if I fully open the hot water at that faucet otherwise it is luke warm. Next, clean the dirt-trap. Start by removing it from the heater so you can clean it properly. It tells you about the abnormality of the external tank thermistor. All in all, its important to understand that recirculation pumps are worth the money. Grundfos water recirculation pump may troubleshoot sometimes. The whole point of installing such a pump is to get hot water fast. 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. To remedy the issue, consider increasing the gas supply to the heater. where does the recirc line tie come off the hot lines? This extra pipe is installed parallel to conventional piping. 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. You can set it to run in the morning before work, and in the evening. If you are unsure of whether the recirculation pump was correctly installed, contact Navien technical center or the NSS agent who installed the heater. (Per Hour, Month, Year), How Much Does A Tankless Water Heater Cost? Yes, you can turn it off by yourself. You can tell because the cold supply line is connected to the circulating return. (1000-3000+ Sq Ft Homes), Thermostat Says Heat On But No Heat? Here is the final install. That installation is incorrect. Because a water recirculating pump provides us instant hot water. Tankless Water Heater Breaker Size Calculator: What Size Breaker? The plumber said that he tied in both in the master bathroom and the kitchen but Ill crawl under the house to validate this. Therefore, the total peak demand of hot water needed is the ideal size of the heater you should get. Correcting Navien Tankless Hot Water Heater Installation, We've added a "Necessary cookies only" option to the cookie consent popup, Tankless water heater - not consistent hot water output, Plumbing Manifold Use With a Tankless Hot Water Heater, No hot water if hot water recirculator pump is shut off, warm water only when we replaced the hot water heater with a tankless heater. Now, when installed, the recirculating pump makes it seem that the hot water starts flowing right away like magic. In fact, however, the whole machinery of the hot water recirculating pump has to be activated for this to happen. Can I swap out the mainboard in the NR240A to an NPE240A board to get all that features? Parts that will actually be used depend on what kind of hot water recirculation pump you have. A place for plumbing advice and help. However, many first-time and beginner road travelers and RV How to Connect a Generator to Your Tiny House Without a Transfer Switch. I am wondering if you have a Navilink and if you by any chance went in like I did and clicked the "disable/enable button" and turned off the schedules, I did change that - thinking it was a glitch that on first launch "enable" was showing. This is the system you can see in the photos above. Lets hop in! The water heater will retain your settings during a power outage. Get in touch with Navien technical support or a professional heater repairman to fix the issue. I used a razor and carefully pried each side of the RM11 open to reach the programming switch. Think hot water loops returning to your boiler to get reheated (to stay hot) Think LOOPS!! This comprehensive guide helps to make the operation and repair of your heater easier. Press the + (Up) or (Down) buttons until the desired temperature appears on display. 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. Normally uncontrolled pumps are used as the flow variation is relatively small. The error code E441 informs about the open thermistor or short circuit problem. On top of that, the recirculating pumps also return the cold water in the pipes back to the heater. Some brands/models dont include it. Power Waste The user manual for these devices (of which I own two) provides a pretty good plumbing diagram for proper install. Do the plumbers explanations make any sense at all or does it sound like BS? By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. JavaScript is disabled. I added an additional remote for a total of 3. my understanding of the Navien with internal recirc pump is that they work with either an external dedicated return pipe or an internal bypass loop located within the water heater cabinet.