Have you talked to ac guy about a low ambient kit, this whole thing is making me rethink the brand of mini split I choose but my ac guy really wants to use daikin and says there is way to make it work in low temps but I’m sceptical since I can’t find parts or any mention of it online.(he just wants to use it because he has relationship with that store and he can warranty it he said he would install whatever I order if wanted something else but that none of the Internet ones come with warranty.)
New mini split doesn't seem to be working right
- Thread starter Dividedsky
- Start date
Dividedsky
Well-Known Member
Dude that's the exact same situation that I got into. I was actually thinking of purchasing another brand of minisplit online but my HVAC guy(friend of a friend) kinda convinced me to go with Daikin because of his companies relationship with the company. I got hooked up though, I got a 24k btu mini, for 1600 or $1700 (can't remember) and he did the install for just $400. I think I'm going to talk to him today and I will ask him about the low ambient kit because at this rate I won't be running the mini in the winter. I didn't bother running it the long last nite because it was chilly last nite, in the 30s so temps in the grow room where hitting the mid 80s couple hours after sunset...
Dividedsky
Well-Known Member
Ok I'm going to look into this...I'm calling Daikin in a bit.
Almost exact same deal I think he said 1800 for unit and line sets and anything else and 400 for install. Prob be a bit more as I need some 240 outlets ran while he here but I’m psyched to have found that info in the manual as I been looking for weeks and was getting worried.
Dividedsky
Well-Known Member
Ya I called Daikin earlier, my 24kbtu unit condenser can't handle temps under 50°F. Which seems ridiculous to me. 50°F is not even cold. I have to talk to my HVAC guy cause he has make this right, the whole point of me getting a mini was to run a sealed room year round. I'm pissed. This why I wanted to order one online, but he told me to go through him, I told the unit need to be able to handle and run in low outdoor temps.
So was it you that said there is some ambient low temp kit or something? Thing is I feel I shouldn't have to buy more shit, I think my HVAC guy should swap the unit out for a unit the can handle low temps outside.
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What series is the mini split do you know? The manual for the 19 series says it can be put into a special mode by cutting a wire, it’s not for (think nobody needs to cool if that cold outside) residential use is why you have to cut the wire it’s called facility mode. Did u tell Daikin what was for if not call back get someone else and tell em it’s a server room. Although not sure if it’s a different series. And even then not sure just had a chance to peak at installation manuals or a min for real if it’s as easy as it says you wouldn’t even need ac guy to come back. Hope this helps.
TintEastwood
Well-Known Member
This was related to the 19 series..........hope it's an easy fix regardless of how you git-r done.
This may not be correct for your unit.
Yikes, 2 hundy. Have your guy install one of these.....free of charge.
https://www.ecomfort.com/Daikin-KPW063A4/p65865.html
This may not be correct for your unit.
Yikes, 2 hundy. Have your guy install one of these.....free of charge.
https://www.ecomfort.com/Daikin-KPW063A4/p65865.html
Renfro
Well-Known Member
Yeah they make most their money on markup not installation.
Far as i can tell all the cheaper models 15,17,19 series all have RX or RK at the beginning of compressor model, so by their installation manual all those compressors should have low ambient function down to -4 just by cutting a wire and maybe a wind baffle if high wind area.
Dividedsky
Well-Known Member
Hey everyone thanks for looking in to this. So my HVAC guy is a friend of a friend. Seemed like a good enough guy but he's acting a lil sketch now. My buddy called him and he said he was calling me 2 days ago, didn't happen. My buddy stopped by today and said he talked to him again and gave him some shit and told him to call me. Didn't happen again. So I called him and he picked up and immediately hung up, seriously. So I texted being cool and still no text back. The old me would have gotten fired up and probably would've lost my cool by now but not trying to be that dude anymore but still I will because I'm a firm believer in standing your ground. Anyways sorry about the rant but people suck. Hoping he gets back to me today at some point. Anyways my model is- RK24NMVJU If I could remedy this by clipping a wire that would be awesome. The wind baffle alone won't help it run at low temps would it? Thanks
That really sucks about dude being flaky wtf the point of warranty coverage you can’t get him to come out. But good news is that looks to be the 19 series cooling only compressor. Which starts with RK which means according to Daikin installation manual (for the 19 series) all you have to do is open the panel and cut a wire on one jumper it even tells you which one instructions in one pic above but might want to download the manual just google daikin 19 series installation manual and download the pdf file. Personally I’d call Daikin first and ask them for sure that your unit has “facility mode” <use this wording, as I’d say the people answering the phone are just trained telemarketers and not HVAC tech and I’m sure they can look up facility mode but it’s prob not a common question. (<hence why the first call didn’t get anywhere. I’ve tried talking to a few online stores about low ambient cool and they have no idea what I mean)
No I don’t think the wind baffle alone would do it, it might run the unit a little warmer so it might go a little cooler but when the temp inside the unit pulls down to 50 I think it will shut off. The wording in the manual about only for Use where humans and pets aren’t present make me think it’s just a safety feature in case the thermostat malfunctions. They don’t want your house to turn into walk in freezer while gone.
I think the units are fully capable down to -4 just by cutting that wire (at least I hope so and manual says so).
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Dividedsky
Well-Known Member
This good to know.
So my HVAC guy got back to me through text, he texted me that he told the mini split supply dude that the unit NEEDED to run year round. Thought it was all good. So not entirely his fault. I sent a pic of the model # and serial # to him. I texted him about cutting the wire to put it in facility mode also. So all should be good and this will be figured out without having to get a new unit or anything. I mean reading through these posts, it seems we will be able to cut a wire and get this solved. I need to get it done asap. I've shutdown c02 and half of the room will be hitting halfway through flower in a few days. Also a bunch of plants will be going into the flower room in a few days..Gotta get the a/c cranking.
Dividedsky
Well-Known Member
So he just talked to Daikin and you guys were right, we're going to cut the jumper wire to run it in facility mode where it can run at temps down to -4°F. He's coming by tomorrow to do it but I almost want to do it myself, how hard is it to disconnect or cut a wire...but what's 1 more day. Just feeling a bit relieved. Hopefully this post can help people out.
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Dividedsky
Well-Known Member
Ya for sure mayne...thanks for your input on this thread, it definitely bettered my understanding of mini splits. It's weird they even of the facility mechanism. The 50F does seem a bit high for it to stop working properky but its almost like a homeowner safety/ failsafe so when it gets cold out and people had the ac running in there house, they wouldn't freeze the place...Haha I don't fucking know. So other than that the Daikin is a awesome unit, super sleek and outdoor condenser is super quiet. It makes my mitsu mr slim(used for my living area) condenser sound loud.
Dividedsky
Well-Known Member
Alrighty so my HVAC guy just came by and we got the jumper wire cut! It was such a small wire to cut, it took us about 20 mins of trying, we thought we might actually have to pull the electrical panel out so we could have more room to snip the wire but we got it done before that. Here a few pics of the jumper wire after it was cut. It is all the way at the top of the pic, you see the section right to left letter/number J6-J12. J6 is the wire that needs to be cut on my model so it can run a/c at low temps. Just wanted to thank everyone for their help, it was greatly appreciated. Check out my some of my grow pics in the in house genetics, thug pug, and DVG threads in seed and strain reviews. Thanks again and peace...-Ds
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Dividedsky
Well-Known Member
Ya dude pretty sure it would. I'm going by Cali rules- 6,000 btus per 1000w hps. I know people who got by using 4,000 btus per 1000w hps..though I'd go with 6000btu for gavita de 1000w hps(if that's what you're talking about).