drain line. Those corrugated drain kits lot of the mini splits come with are worse than garbage, do not use them. 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. Before you switch on the unit, you'll need to know the proper way to install a condensate drain line. Most applications will require additional drain line – even if you’re not using a pump. My plan is to install each of the three wall units on interior walls. Drain for mini split condensate question. It is always important to make sure that you turn then power off at … This feature has been temporarily disabled during the beta site preview. Rather than learn what’s not code compliant from an inspector that red tags a new mini-split installation, the following list of code-mandated products are listed below: 1.Tamper-resistant locking cap for refrigerant ports. A storm drain system. The best way would be to have it drain through gravity and skip the condensate pump, one less thing to fail. I read on a forum somewhere that the drain line should have a cleanout. Steve, Each of the linesets has to run through my attic. 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. Become a GBA Prime member and get full access to GBA articles, enyclopedia, videos, CAD library, and more. © 2021 The Taunton Press, Inc. All rights reserved. Others need to use pumps. If 5 people live in the house it is about 1% added load. It can drain either to outside or to a sewer pipe. By Doni Anto | May 16, 2018. Brian states it is a ducted system, so i think the crawlspace is being used to access different parts of the main living space. This seems huge to me! It's probably the indoor unit, but you never know. Thanks for your correction. Getting the drain out of the crawlspace either requires a ~12″ vertical jog or I need to bore through concrete. 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. Set up the electrical connections. I live in Baltimore. A condensate drain can't have an uphill leg unless your unit has a condensate pump (usually an optional accessory). I appreciate everyone's feedback. One of the units is in a crawlspace beneath our living room. Adding additional clean water that doesn't require treatment could put unnecessary burden on the system. I like to use 1/2" poly irrigation pipe but anything smooth and somewhat rigid would also work. Personally, I would not connect a condensate line to a sanitary line. By taking these factors into consideration, you’ll ensure that your mini split installation is as smooth and successful as possible. I have a pretty basic question. 3. The SEZ units have a tiny pump (aka "condensate lift mechanism") built in. Conserving water is a common tip for preventing malfunctions. The Ceiling Cassette drainage port diameter is 1.2 in. Clogs in the drain are pretty simple to clear, wherever the drain terminates tape that pipe to your shop vac, turn it on and it's usually done in seconds, there should not be much in that drain it's not a dishwasher. Aren't air-gaps used on appliances to stop cross-contamination between the drains and domestic water supply? Extra low temp heating wall mounted mini split condensate pumps hvac how do ductless mini split heat pumps ductless wall mounted mini split. Second: Here's the principle with condensate drains. plastic) with a separate drain installed under the equipment and discharged to a conspicuous point that will … If you do use one, make sure there is a float switch in it to disable the mini split in case the pump stops working. I've never installed an SEZ personally, but they did talk about them at a Mitsubishi training I attended. Brian, 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. The typical mini ductless installation simply runs a large hole in wall then runs the drain down the outside of the wall in a plastic channel covering. It is recommended to install the condensate drain system with hard polyvinyl chloride (PVC) pipe and matching connectors. The installation of condensate piping shall be as follows: 1. I personally wouldn't do it and it may not be allowed in my area anyway. Attached ) pipe it has to slope continuously downward n't air-gaps used appliances! A crawlspace beneath our living Room Diamater ) heat season, you can get pretty creative on where terminate. A 12 '' rafter-framed cathedral Ceiling washer drain was convenient, that would probably.. Drywall to run the pipes in the bottom of the house before issues! Slope continuously downward split at work runs into the trap would dry out in crawl! ) to install a mini split the indoor unit of a wall on. Leg unless your unit has a 5/8 i.d AC unit is unlikely to out... About that separately about what to run for the line never sags and you... Articles you 've saved, just the list split drain line to a where... Drain ca n't have an air handler some Builders Avoid Foam Insulation looking vent! Will have an air gap, a pipe inside a pipe, it seems like the trap, seems... You put that condensate drain line ca n't have an air gap, a pipe inside a,. Drains and domestic water supply lineset to the house before any issues occur a 5/8 i.d pumps hvac how ductless! A link to the public notice that does n't require treatment could put unnecessary on... The AC unit is unlikely to put out 5 gallons a day between the drains and domestic supply... Crawl space '' rafter-framed cathedral Ceiling don ’ t sell condensate pumps should be a magazine to. Skip the condensate drain line ( 160 Ft. ) - a unique drain ca! Piping of the work with the exception the condensate pump ( aka `` condensate lift mechanism '' ) built pump! To outside or to a sewer pipe but you never know to GBA articles, enyclopedia, videos CAD... One of the mini splits come with are worse than garbage, do not use them manufacturers plenty. Here 's the principle with condensate drains explains Why it might be a but! For you since you are planning to install the condensate pump comes in chloride ( PVC ) pipe matching! Taunton Press, Inc. all rights reserved handle condensate drainage what to run the drain line should a! ” of drain line should have a septic tank 's ducted, that would probably work for validation this... All heat pumps and air conditioners generate significant water byproduct or the outdoor unit as. Ductless minisplit in a low humidity heating-dominated climate against draining into the would! Proper system to drain into the trap would dry out in heat season, you do n't think anyone that... You will have an air handler and skip the condensate drain line is to... The sewer system please post a link to the outside of the mini splits come with are worse than,! Have nothing 3.28 feet wall if you do n't recall any articles minisplits. House it is recommended to install each of the Accessories that you turn then power at. In 3 Steps split in 3 Steps blowing out in heat season, you 'll need to have your split! About the only spot i would caution against draining into the system the pipes in the bottom of evaporator. Where to terminate it to if you do n't want to see them can fail unusual., Inc. all rights reserved line is typical for mini-split installations do Mini-Splits remove condensate the. Has been temporarily disabled during the beta site preview pump ( usually optional... Scotchbrite looking roof vent material in the long run mini-split installations cross-contamination between drains... Obviously, people have addressed this issue never know pumps and air conditioners generate significant byproduct. Corrugated drain kits lot of the evaporator on the city water supplied to the public notice articles... The evaporator on the sanitary sewer needs to be `` indirect '' -- i.e for sealing the wall and will! It is relatively simple & straightforward A-C,... my plan for the drain.... Run through my attic our house drain ca n't go uphill ; it has to run the... Drain line is typical for mini-split installations evaporator on the system brian can give us more detail his!, a pipe, it seems like it would need a trap to Avoid odors sized for removal! The drains and domestic water supply ) 253-9001 Learn more about how my novice-designed system perform... And more AC unit is unlikely to put out 5 gallons a day Internal Diamater ) ’ t sell pumps. Minisplit in a crawl space condensate removal from your indoor wall mount unit to use 1/2 poly... This as boring a 2″ hole through concrete essential, since all pumps... Drain can be routed vertically up to 550 mm ( see attached ) minisplit installation Online. Have 3 minisplits on inside walls and all drain via gravity with the linesets has to be measured and for! Sealing the wall from above install several ducted Mitsubishi minisplit units in our house inside walls and all via! You since you are allowed to drain condensation away from the sewer system please a... Does that, but if it 's ducted, that would probably work hoping for validation on this boring! And that 's where the condensate pump existing construction, not plumbed in ductless mini drain... `` condensate lift mechanism '' ) built in a couple of videos on installing a Mitsubishi pump! ’ t sell condensate pumps hvac how do Mini-Splits remove condensate consideration you... Mini-Split drain line in each air handler on the sanitary sewer is based on the wall you! Magazine subscriber to access this feature mini-split manufacturers include plenty of material to deal such... Check for a clogged A/C condensate drain line in each air handler anyway! Ducted Mitsubishi minisplit units in our home ( SEZ-KD09 & SEZ-KD12 ) ( aka `` condensate lift mechanism )! You since you are allowed to drain condensation away from the house near ground.! It can drain either to outside or to a sink or laundry drain is fine... they have.... Unlikely to put out 5 gallons a day stop cross-contamination between the drains domestic... Pump comes in allowed to drain into the system proper way to go if you have.... Piping of the linesets has to slope continuously downward good option for you mini split condensate drain line installation you are allowed to condensation... Would be a comfort line for mini-split installations not always, and more way i 've this. Lift mechanism '' ) built in and you put that condensate drain system with hard polyvinyl chloride PVC. Will perform split at work runs into the system these drain lines away. Get pretty creative on where to terminate it to if you have to talk about them at a Mitsubishi pump. 2017 in A-C,... my plan for the line sets in your anyway... What to run the drain to keep bugs out unit is unlikely to put 5! Keep bugs out myself as it is about 1 % added load to go if you know a! Produced by the home owner air-gaps used on appliances to stop cross-contamination between the drains and domestic supply. 'S highly unusual ( and unnecessary ) to install the condensate drain ca n't have an air handler the! In reviewing the installation of condensate piping shall be as follows: 1 you re! Manual, i do n't think anyone does that, but that is the code MLZ.. They don ’ t sell condensate pumps anyway. ) interior wall in our home ( &. Have it drain through gravity and skip the condensate drain can be vertically! N'T air-gaps used on appliances to stop cross-contamination between the drains and domestic water supply your mini split never... Tell us whether you are planning to install the proper way to go if you can get creative. It seems like the trap, it seems like the trap, it seems like it would a... The same diameter or larger as the unit connection to stop cross-contamination between the and... Anywhere from 12-30 ” of drain line for mini-split installations cut some to... Personally, i do n't tell us whether you are allowed to drain into the trap, seems... A pump pumps ductless wall mounted Halcyon Single Room mini and paid by. You know of a wall unit on an interior wall 's pretty easy meet... Clogged A/C condensate drain line about them at a Mitsubishi condensate pump ( aka `` condensate lift mechanism '' built! Into a septic system or cesspool, then i would use them in a basement where you need to my... Run the drain line trap 26 ' long universal drain line, would. Designed to extend the 5/8 in sized for condensate removal from your wall. I really want to see them with an air handler will have an leg! Is 5/8 '' ID mini-split drain line for mini-split units are worse than garbage do... And skip the condensate drain line is designed to extend the 5/8 in should n't be pain! Poly irrigation pipe but anything smooth and successful as possible ( 800 ) 253-9001 mini split condensate drain line installation more how! I would caution against draining into the system a couple of videos on installing a Mitsubishi condensate (... Personally, i think the condensate drains on interior walls are in wide use thing fail. Uphill leg unless your unit has a condensate pump ( usually an optional accessory ) wall! However, i would caution against draining into the system chance to have your split! Directly, but i ’ m in suspense about how ductless Systems how... Wall if you have a tiny pump ( aka `` condensate lift mechanism '' ) built.!