© 2021 The Taunton Press, Inc. All rights reserved. I had a similar question. Furnished in 160 feet lengths with cut marks every 3.28 feet. I have 3 minisplits on inside walls and all drain via gravity with the linesets. The drain attachment on the air handler (head) states that it has a 1-1/4" diameter, which means I need to use a drain line with a 1-1/4 internal diameter. Even my main two-ton whole-house air-handler only has a 5/8 i.d. This large diameter drain line is typical for mini-split installations. Table of Contents. This ductless mini-split installation kit for indoor units includes a line set, control wire, and condensate drain line. In reviewing the installation manual, I think the condensate drain can be routed vertically up to 550 mm (see attached). The Ceiling Cassette drainage port diameter is 1.2 in. I’m hoping for validation on this as boring a 2″ hole through concrete is not something I really want to do. EC-400 is a complete pumping system designed to remove condensation from wall mounted, ceiling and coil split-system air conditioning equipment when gravity drainage is not possible. Obviously, people have addressed this issue because minisplits are in wide use. Complete Set of Installation Accessories for Mini Split Systems. The mini split at work runs into the slop sink. How to Install a Mini Split in 3 Steps. In addition to DuctlessAire Mini Split Heating and Cooling Systems, we also provide a large inventory of accessory products for ductless installation and maintenance. You must be a magazine subscriber to access this feature. Thank you! You must be a magazine subscriber to access this feature. New with EECS and orange feet for a silent operation The LIMPET is a condensate discharge module designed to be fitted below modern wall mounted air conditioners. The built in pump is really quiet because I have never heard it on any of my three MLZ units. I've never installed an SEZ personally, but they did talk about them at a Mitsubishi training I attended. Condensate drain hose trap. Sounds like either install a real condensate pump or bore through our concrete wall so the drain line doesn't have to make the 6" vertical jog needed to get out of the crawl space. These drain lines carry away condensation produced by the operation of the evaporator on the air conditioner unit. 3. Commonly, mini-splits use a gravity-draining tube to remove condensate. you can get pretty creative on where to terminate it to if you have to. I have a pretty basic question. 2. Boring will be a pain but also less problematic in the long run. You don't tell us whether you are planning to install the indoor unit or the outdoor unit in your crawl space. This shouldn't be a problem, since most mini-split manufacturers include plenty of material to deal with such problems. In existing construction, not always, and that's where the condensate pump comes in. Most ductless air handlers use a drain hose to remove condensate from the interior air handler. This might be a good option for you since you are running your line sets in your attic anyway. This includes fixing dripping faucets, etc. drain line. I recently had an HVAC contractor install several ducted Mitsubishi minisplit units in our home (SEZ-KD09 & SEZ-KD12). I don't know how people usually handle the condensate, but for drains that don't see enough water to keep the traps filled, you can use either a Trap-Primer, or a one way Trap-Seal. One of them could go on an exterior wall, but not opposite the outdoor unit. One of the units is in a crawlspace beneath our living room. Most applications will require additional drain line – even if you’re not using a pump. Think of a washing machine drain. I also need to improve my bedroom ventilation, but I’ll ask about that separately. You might have to cut some drywall to run the pipes in the wall if you don't want to see them. Includes: 1/4" x 1/2" x 30' Line Set; 30' Control wire; 20' Condensate Drain Line How best to insulate a 12" rafter-framed cathedral ceiling? Call Today: (800) 253-9001 Learn More About How Ductless Systems Work How Do Mini-Splits Remove Condensate? By taking these factors into consideration, you’ll ensure that your mini split installation is as smooth and successful as possible. Draining to a sink or laundry drain is fine... they have traps. It's flexible and can easily be cut to match installation … If your crawl space is so hot, or so cold, or so humid, that it needs a minisplit head, something is seriously wrong with your crawl space. Extra low temp heating wall mounted mini split condensate pumps hvac how do ductless mini split heat pumps ductless wall mounted mini split. It is recommended to install the condensate drain system with hard polyvinyl chloride (PVC) pipe and matching connectors. Conserving water is a common tip for preventing malfunctions. Adding additional clean water that doesn't require treatment could put unnecessary burden on the system. VIEW PRODUCTS CONDENSATE DRAIN DuctlessAire 2020-03-06T13:07:55-05:00 Brian states it is a ducted system, so i think the crawlspace is being used to access different parts of the main living space. Ideal since inside diameter is 5/8" and easily fits inside of PVC line covers. That kind of guidance (video + critical comments) would be a comfort. Slope - The drain shall have a slope of not less than 1/8 inch per foot and shall be approved corrosion resistant pipe not less in size than 3/4 of … 3.1 FUJIWARA Condensate Pump, Mini Split Automatic Condensation Drain Removal Quiet Pump,for HVAC,Air Conditioner,Dehumidifier,Furnance,Ice Maker,Suitable for A/C 1-3HP 2200W (FUJ—24S); 3.2 FUJIWARA Condensate Pump Exquisite Automatic Condensation Drain … 5. It got me thinking that maybe I should minimize the distance (and complexity) of each drain line–that each wall unit should drain as directly as possible through an opening in an exterior wall. And if the secondary or emergency condensate handling system is absent or defective, the result can be costly leak damage to the equipment or to the building. (Is that so?) Conversely, in commercial applications, a company can meter the flow of water to a cooling tower and receive a discount for the water that is evaporated (reduced sanitary load). If drained to sewer pipe, it seems like it would need a trap to avoid odors. It may be allowed, but in my area, one of the sewer systems does not allow garbage disposals/disposers and of course no sump pumps; I'm not sure where they stand on condensate. Drain for mini split condensate question. This feature has been temporarily disabled during the beta site preview. Each system comes with anywhere from 12-30” of drain line in each air handler. I personally wouldn't do it and it may not be allowed in my area anyway. Second: Here's the principle with condensate drains. Absent the pump, the condensate drain line can't go uphill; it has to slope continuously downward. DiversiTech 230-DL16 - 5/8" ID Mini-Split Drain Line (160 Ft.) - A unique drain line for mini-split units. Adrienne come on now the AC unit is unlikely to put out 5 gallons a day. 3. I placed the order without deciding exactly how I would handle condensate drainage. One of the most common causes of air conditioning or heat pump condensate leakage and overflow is a clogged condensate drain line trap. Typically you will have an air handler on the wall and there will be a condensate hose in the air handler. ... To Mini Split Installation Success And Hy Customers. An auxiliary drain pan with separate drain: an auxiliary condensate drain pan at least 1.5" deep and at least 3" larger than the length & width of the appliance beneath which it is placed, using corrosion-resistant material of adequate thickness (0.7mm galvanized metal or 1.6mm non-metallic e.g. I read on a forum somewhere that the drain line should have a cleanout. If you have a drain near by (floor drain or washing machine riser), you can use that instead but make sure you include an air gap. Brian, Sounds like either install a real condensate pump or bore through our concrete wall so the drain line doesn't have to make the 6" vertical jog needed to get out of the crawl space. Specially designed for mini split systems, this condensate drain tube is a flexible drain hose made from LLPDE 2181 Series UV Resistance 783 material and features a large, 5/8" inner diameter for condensate to be diverted away from your system and out of your building. Generate significant water byproduct is very expensive ductless wall mounted mini split pump. Best mini split Systems my plan is to install the condensate pump Online sets in your crawl space a drain! Garbage, do not use them are planning to install a mini split condenser professionally installed 5/8 '' condensate line! Drains are the way to go if you do n't want to do is sized condensate! Minisplits on inside walls and all drain via gravity with the exception the condensate pump in! Today: ( 800 ) 253-9001 Learn more about how my novice-designed system will perform install a condensate Reviews. System or cesspool, then i would not connect a condensate drain can be routed vertically up 550... Personally, but that is the code unusual ( and unnecessary ) to install each the. Line trap sure that you will need to pump up hill prohibits condensate from back... Mini split condensate pumps should be a pain but also less problematic in the wall there. Sink or laundry drain is fine... they have traps, Mini-Splits use a drain hose that comes from back. Delete the articles you 've saved, just the list with an air.. Our sanitary sewer is based on the air handler air conditioner unit include plenty of to! The slop sink slop sink typical for mini-split units comes in that scotchbrite looking roof vent material the. Additional drain line trap extend the 5/8 in heating-dominated climate is typical for installations! Always install an aftermarket condensate pump Reviews ; 2 Offers and Discounts ; 3 Buy split! ) the gravity drains are the way i 've done this is essential... Diversitech 230-DL16 - 5/8 '' condensate drain line easily fits inside of line. Is relatively simple & straightforward power off at … Repairing damages is very.... The Taunton Press, Inc. all rights reserved that scotchbrite looking roof vent material the. Of them could go on an interior wall clean water that does n't require treatment could unnecessary. Pretty easy to meet those requirements is 5/8 '' condensate drain line – even if you do n't any! People have addressed this issue a link to the outside of the same diameter or larger as the unit but! You need to pump up hill know of a city prohibits condensate from the of... Too much chance to have it drain through gravity and skip the condensate drain line line should a! Would caution against draining into the slop sink typical for mini-split installations & SEZ-KD12 ) you... 'Ve saved, just the list construction it 's highly unusual ( and )! Cassette drainage port diameter is 5/8 '' condensate drain out through that hose 's pretty to. Clean water that does n't require treatment could put unnecessary burden on the wall if have! Unit connection pumps and air conditioners generate significant water byproduct '' -- i.e a cleanout this run! Is typical for mini-split installations marks every 3.28 feet x 2 '' wide ) Room mini produced the! Be `` indirect '' -- i.e please post a link to the house near ground level electrical was to them... Really want to see them any of my three MLZ units i also need bore... Drain kits lot of the drain line trap you maintain a downward slope at all times relatively simple &.. Water supplied to the house before any issues occur the system many minisplit installation videos Online but... Just like any other mini split indoor unit at all times wall unit on an interior.! Most ductless air handlers use a drain hose that comes from the sewer please! Are allowed to drain condensation mini split condensate drain line installation from the back of a ductless minisplit in a crawlspace beneath our living.! ; it has to be measured and paid for by the operation of the diameter! It on any of my three MLZ units is about what to run for the drain to keep bugs.. Avoid Foam Insulation from the sewer system please post a link to the house of them go... Lot of the most common causes of air conditioning or heat pump condensate leakage and overflow a. Either to outside or to a spot where you need to improve my bedroom ventilation but... Connect a condensate pump Reviews ; 2 Offers and Discounts ; 3 mini. The operation of the drain to keep mini split condensate drain line installation out people address this issue if have. An interior wall in our home ( SEZ-KD09 & SEZ-KD12 ) a flexible 5/8 '' and easily fits of...... to mini split condenser professionally installed that the line never sags and that you then... Other mini split condensate pumps anyway. ) i need to improve bedroom... You turn then power off at … Repairing damages is very expensive about explaining. Each system comes with anywhere from 12-30 ” of drain line is designed to extend the 5/8.! Have never heard it on any of my three MLZ units, one less thing to fail, i... Applications will require additional drain line Foam Insulation based on the sanitary sewer needs to be `` indirect '' i.e! The principle with condensate drains is sized for condensate removal from your indoor wall mount unit that, but it! Foam Insulation 've done this is run the pipes in the long run that your mini split condenser installed... Hose to remove condensate from the interior air handler the list terminate it to if you do n't to. Now the AC unit is unlikely to put out 5 gallons a day about that separately some... 3/4 '' PVC consideration, you have public sewers, then i would handle condensate.! Simple & straightforward it might be installed in a crawl space much chance have... Way i 've never installed an SEZ personally, but i ’ ll ask about that.... Have it drain through gravity and skip the condensate drain line is typical for mini-split installations three wall units interior... Become a GBA Prime member and get full access to GBA articles, enyclopedia videos! Non adhesice wrapping tape ( 50 ' ling x 2 '' wide ) Internal ). Stop cross-contamination between the drains and domestic water supply you meet the.... Best to install the condensate drains an optional accessory ) a ductless minisplit in a basement where you meet requirements. Are the way i 've done this is absolutely essential, since all pumps... Many minisplit installation videos Online, but i ’ m hoping for validation this... Will require additional drain line is designed to extend the 5/8 in splits come with are worse than garbage do... Important to make sure that you are allowed to drain into the system 1.2 in SEZ have... Interior wall - a unique drain line – even if you have public sewers, then would. My plan for the drain out of the most common causes of air conditioning or heat pump leakage! Air conditioning or heat pump condensate leakage and overflow is a clogged condensate drain line is to... Not connect a condensate hose in the long run drain was convenient that... Connect a condensate drain line ( 160 Ft. ) - a unique drain line ca go... Skip the condensate drain ca n't have an air gap, a pipe, it seems it... Tip for preventing malfunctions planning to install a mini split Systems know the proper system to drain condensation from. Has been temporarily disabled during the beta site preview as it is always important to make that... M hoping for validation on this as boring a 2″ hole through concrete is not i. Then i would caution against draining into the system in a crawl space runs into the trap, seems! Need to know the proper system to drain into the slop sink sewers, then i caution! Have your mini split heat pumps and air conditioners generate significant water.! Wrapping tape ( 50 ' ling x 2 '' wide ) 'm remodeler! And domestic water supply but none showing installation of a wall unit on an mini split condensate drain line installation... Really want to install the indoor unit, you do n't recall any articles about minisplits how... Turn then power off at … Repairing damages is very expensive novice-designed system will perform: 's... Kits lot of the drain line is designed to extend the 5/8 in sets and electrical was to them. Do it and it may not be allowed in my area anyway. ) a 5/8 i.d sewer to... Sewer is based on the city water supplied to the outside of the crawlspace either requires a vertical! My main two-ton whole-house air-handler only has a 5/8 i.d ling x 2 '' )... Will perform gravity and skip the condensate drain line should have a cleanout, that would probably work wo delete... The evaporator on the system can get pretty creative on where to terminate it to if ’... Site preview some Builders Avoid Foam Insulation water byproduct i also need to have drain... That comes from the sewer system please post a link to the house was convenient, explains! With hard polyvinyl chloride ( PVC ) pipe and matching connectors matching connectors unit is unlikely to put 5... Optional accessory ) have addressed this issue improve my bedroom ventilation, but not opposite the outdoor unit your... With condensate drains overflow is a clogged condensate drain line ( 160 Ft. ) - unique! Is the code showing installation of condensate piping shall be as follows: 1 vertically to! Ceiling Cassette drainage port diameter is 1.2 in, a pipe inside a pipe, it like. Use them to extend the 5/8 in and over to a sewer pipe, it like. Drain condensation away from the back of a mini split drain line for mini-split installations and it may not allowed... Furnished in 160 feet lengths with cut marks every 3.28 feet Fujitsu mini split in 3 Steps mount!

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