Perfekt! "Are the Grundfos stainless steel pumps specified for potable hot water?" They are an excellent choice for drinking water. Box 2040, Regency Park, South Australia 5942 Delivery: 515 South Road, Regency Park, South Australia 5010 E.g. Will a 1/2" return line work ok?" It's a very quiet unit and uses less electricity than most light bulbs (65 watts!). An electric tankless water heater doesn't use any energy when you're not drawing hot water. OR - find plumbing supplies starting with: For a new recirculation system setup, you will need a flange or union adapter set -, Can be used with cast iron, bronze, or stainless steel recirculating pumps that have, Isolation valves shut-off water supply at the site so the pump can be removed from the system or serviced without turning off the main water supply, For new installations, 1 complete set required per pump (flange adapters may not be needed if replacing existing pump), Sets available for cast iron, bronze, or stainless steel pumps in a variety of pump connection sizes and pipe sizes, Designed for use with Grundfos cast iron, bronze, or stainless steel recirculating pumps that use, For new installations, 1 complete set required per pump (union adapters may not be needed if replacing existing pump), 2 - standard unions OR 2 - isolation valve unions with screwdriver stops. A. My problem is that I have to pump it up about 20 feet and I only have 40 psi. Thinking about installing a water softener to your system? The Premier Online Plumbing Supplier Since 1995, Same day shipping for in-stock orders processed by 7pm EST M-F, Recirculation pumps are the answer to waiting (and waiting and waiting) for the hot water to arrive where you need it, and can also provide energy efficient heating for your home. Grundfos Comfort System Retrofit Instant Hot Water System. Is it necessary?" You'll need the pump and flanges/unions of course; a swing check valve, and pipe and pipe fittings to run the return line back to the pump. "I am purchasing a replacement Grundfos pump. These can be installed in both vertical and horizontal lines. Grundfos bronze and stainless steel pumps are manufactured for use with potable or non-potable water, softened water or with a 50/50 mixture of water and propylene glycol. Q. "Is the thermostat adjustable?" // ]]> JavaScript seems to be disabled in your browser. Having said that we do want you to realize that every pump has a specific function. The ISO (isolation) flanges have a screwdriver shut-off built into them so the pump can be removed from the system without turning off the water supply. Q. "I want to install a hot water circulation loop so that I can get hot water quickly at my taps. If you are replacing an old Grundfos recirculating pump, you may not need new adapters. Q. Typical hot water system before a recirculation pump. To prevent air from collecting in the return line, slope all the pipes so air will flow to the high point in the return line and then put an air vent there so you can release the air periodically. The thermostatic control automatically turns the circulator off when the temperature exceeds approximately 105°F and back on when the temperature drops below approximately 85°F. The thermostat turns off the pump when the water in the pipes reaches a certain temperature. // ]]> Speed adjustment should not be done while pumps are in operation. Q. A timer and/or thermostat are optional. The cold water then runs back through the piping to the water heater to be reheated and recirculated. The pump should be installed with the motor shaft horizontal. That is, if either the timer control or the thermostatic control switch is open (off), the circulator will not operate. Q. Our most popular unit is the #UP 15-29SU (formerly the #UP15-18SU). Q. The maximum allowable liquid temperature of these pumps are determined by the ambient or surrounding air temperature around the pump. Copyright © 1985-2019 Aqua Science. "On your cast iron pumps you say that they are only for a closed system. A. Look no further than this manual! The motor output is set by adjusting 4 switches (called "dip switches") located on the pump, in a predetermined sequence by the manufacturer, to control by Voltage: 0-10V(DC) or 2-10V(DC); Current: 0-20mA or 4-20 mA. The Grundfos UP and UPS pump types 25, 26, 43,and 50, can be used with chilled water because their motor construction is suitable for temperatures as low as 32°F (0°C) as long as the pump housings are compatible with the pumped liquids. Grundfos Pumps, Australia, [Website] Grundfos Pumps Pty. Cast iron pumps are excellent for use in radiant heating systems, hydronic baseboard or floor heating systems, fan coil heating systems, heat recovery/heat pump systems, geothermal heating systems, closed solar heating systems, air conditioning systems and other chilled water applications. If water conditions exist that are not compatible with cast iron, then Grundfos recommends the use of a bronze or stainless steel pump. We know of no finer made pump. The bearings are lubricated by the pumped liquid. Every pump also has a specific flow rate, etc. These Grundfos circulating pumps operate whisper quiet for sound sensitive applications. It is very important that there is no trapped air in the pipe or the pump. Hinweise und Registrierung . Slowly unscrew the chrome slotted plug counter clockwise, until small bubbles of air and water appear. Look no further than this manual! Local codes may require the installation of a hot water expansion tank for secondary pressure relief on cold water supply lines with check valves. There are many different sizes and types of pipe. IMPORTANT: This chrome plug must NOT be removed. If it is an identical replacement Grundfos pump you certainly don't need to purchase flanges/unions again. What is a 'closed system'?" Click here for Coronavirus COVID-19 Updates, Submersible Well Pumps from Goulds & Grundfos, Goulds Submersible 4" Well Pumps - GS Stainless Steel Series, Goulds Submersible 4" Well Pumps - HS Composite Series, Grundfos SQ Series, 3" Stainless Steel Submersible Well Pumps, Constant Pressure Cycle Stops and Manifolds, Pump Protectors from Symcom, Coyote and Franklin, Submersible Well Pump Wire & Direct Burial Wire, Booster Pumps from AY McDonald, Grundfos, Davey & Dab, Pump Control Boxes from Goulds and Franklin, No Lead Brass, Stainless Steel & Quick Connect Fittings, A.Y. gtag('config', 'AW-948175282/-9a3CNG7j3gQsoOQxAM', { 'phone_conversion_number': '800-767-8731' }); It can be set in 15-minute increments, mounts right onto the pump, and is the best timer we have ever seen. The ones that you currently have "should" fit fine. A. The timer only allows the pump to turn on at certain times. The UP and UPS series pumps are a canned rotor type. Q. Le cabinet d'avocats en droit informatique BAUMANN assiste ses clients dans tous les domaines du droit de l'informatique (contrats informatiques, contentieux informatique, conseil et formation). When only water streams slowly out of the pump then you will know the air has been purged. We are committed to providing the highest quality water filtration and well system supplies at the lowest prices. Just bought a 2510 SXT Digital Water Softener? Grundfos MP204, electronic motor protector, designed for the protection of an asynchronous motor or a pump described by the company as having the following features: The impellers are made of a durable, corrosion resistant, PES (30% glass filled). These excellent quality pumps from Grundfos are economical, easy to install, low-maintenance and they save valuable resources, too! Unless you have extremely oversized the pump (which wastes a lot of energy), trapped air in the return line can damage the recirculation pump. Meaning, for example, a circulating cast iron pump isn't generally for domestic drinking water. Branches off of the main hot water supply should be kept as short as possible. Newsletter sign up. Pumps housings are made in cast iron, bronze or stainless steel for use in appropriate liquids and water conditions. [CDATA[ Page 1 Page 1 Wednesday, October 31, 2018 5:49 PM GRUNDFOS INSTRUCTIONS Digital timer kit Installation and operating instructions...; Page 2 Page 2 Wednesday, October 31, 2018 5:49 PM...; Page 3 Page 3 Wednesday, October 31, 2018 5:49 PM English … This cold water then crosses over from the hot piping to the cold piping at the bypass valve. With these Grundfos recirculating pumps, air removal from the pump can be accomplished by releasing air from the chrome slotted plug located on the front of the pump. Most three-prong wall timers should work, but Grundfos makes a fantastic timer for their most popular model (#UP15-18SU). Best to go with 1/2" but there is no reason to use 3/4" pipe. Timer controlled. The UP and UPS 25, 26, and 43 pump types can be used with chilled water due to their motor construction, which is suitable for 32° F (0° C) as long as the pump housings are compatible with the pumped liquids. 3-speed pumps offer more flow rate flexibility than single speed pumps and are manually adjusted to the preferred speed by the user as needed. Must I (am I required to) order flanges/unions along with the pump or can I just order the pump?" Extractor fans with a built-in timer control means that the fan will operate with the bathroom light switch and then overrun for a set amount of time to continue removing moisture from the air. Melden Sie sich auf der linken Seite unter „Login“ einfach an. This Water Quality Association study details the many benefits of doing this and comparisons to unsoftened water. Ihr Passwort haben Sie bei Bestellung Ihres Abonnements per E-Mail erhalten. "What else would I need to install a hot water recirculation system?" When the timer and thermostatic controls are installed together, in series, the circulator operates ONLY at the preset clock times specified by the user AND ONLY when the temperature conditions of the thermostat are met. Looking for easy to follow instructions on how to set it up and program it? The motor output can be set to run at a variable speed by either voltage or current. "You offer/show such a great selection and since I need the pump right away am worried that it won't ship right after I order it. A. If new liquid is brought into the system it will bring air with it and over time this will rust out a cast iron pump. Using flanges/unions means they don't have to make a different pump for every different size & type of pipe. How it works: The circulator pumps hot water into the plumbing system which pushes the cold water through the pipes. Verkäufer aus dem Ausland können Ihnen Artikel regulär über einen internationalen Versandservice zuschicken. Looking for easy to follow instructions on how to set it up and program it? Q. You must have JavaScript enabled in your browser to utilize the functionality of this website. Speed adjustment of 3-speed pumps should not be done while the pump is in operation. Grundfos Bronze and Stainless Steel circulating pumps are used for hot water recirculation and open systems because these materials are not effected by air and oxygen released into these types of systems through the constant introduction of fresh water. Q. A. "Why do I need flanges/unions?" Either one will save energy (and money). 2019 Stock Catalog & Price List Greensboro Warehouse 1-800-334-0254. "Why don't you recommend ordering thermostats with the line cord pumps?" Q. Sie haben bei Ihrer Bestellung eine E-Mail-Adresse angegeben? 7.4.5 Dosing timer cycle 28 7.4.6 Dosing timer week 29 7.5 Analog output 30 7.6 SlowMode 30 7.7 Stop after power failure 31 7.8 FlowControl 32 7.9 Pressure monitoring 33 7.9.1 Pressure setting ranges 33 7.9.2 Calibration of pressure sensor 33 7.10 Flow measurement 34 7.11 AutoFlowAdapt 34 7.12 Auto deaeration 34 7.13 Diaphragm leak. When your system is entirely under pressure, while the Grundfos pump is "pushing" up, the water is also "dropping" down. To Speak With a Systems Engineer, Please Call 800-767-8731 Products with *FREE SHIPPING only applies in the contiguous U.S. Table showing the flow rates and backwash rates for different filtration media in different size tanks. Q. Now that you're going to have hot water in your pipes all the time we strongly recommend insulating your hot water pipes as well as the return line to avoid stand-by heat loss. Just make sure to get rid of ALL of air in your return line and design your system so that no air will be in your line. Q. //