Video

I haven’t used it before. I’ll give it a try next time. Thanks for the tip mate.

People tend to get annoyed when you blast cold air at them during winter. Water is always my first option.

😂

That’s really cool to hear! Thanks for sharing that, brought a big smile to my face. Always nice to know people are enjoying the videos.

The further you look the better it gets 😂

This particular motor had a weep hole at the bottom already without any rubber plugs inserted. I’ve seen the style you’re referring to though. I don’t use them very often, but definitely something to keep in mind. Love watching HVACR VIDEOS. Learnt a lot from watching his stuff. It’s a great resource.

Seriously right? Pretty crazy it didn’t give spit out anything.

Right when you’re least expecting it too 😂

They are on all the outdoors. This whole install is a bit of a shit show. Long story short, we’re going back with the ME cowls and reworking the ductwork. I’ll remeasure the static pressure once’s this is done and adjust the dip switches accordingly.

😂 it’s unfortunate how common this is

This is a two pipe heat recovery so there is no Refrigerant Recovery Mode as you’re pulling from both sides. The manuals don’t even have it as an option.

Can’t do that anymore 😂

It doesn’t appear to be on their website. Potentially just my local Actrol selling them. Next time I’m in I’ll grab the part number and post it back here.

It’s Tesuco part number is PBT1 not too sure on product code! Found it supplied at my local actrol also

@@jamesmccann8896 Thanks alot, I’ll get one ASAP

Yeah, it didn’t want to leave 😂

100% 😂

Such a small thing can cause such big problems.

100%. After releasing this video I got some great feedback back and did a lot of reading into it. I’ll go back after the original cowls are back on and the duct alterations are done to remeasure the static and adjust the dip switches accordingly.

Thanks mate.

Thanks mate.

It’s serves a purpose. Condenser is on a rooftop with nothing to break the wind. It doesn’t look the greatest. Have you got a better alternative?

@@hvacraustralia no no no! Remove it just while your working on it. I wasn't saying remove it all together hahah

Thanks for the tip mate, appreciate it. I’ve also come to realise that my static pressure readings will be wrong without the cowls present. I’ll need to go back once the cowls and duct reworks have happened to remeasure.

It’s a great kit. Really speed the process up!

100% 😂

Good to know. Thanks mate.

😂

The CCH had no reading to earth. I tested everything and the only issue I found was the RV coil. Higher resistance shouldn’t mean more current to blow the fuse however. The terminals on the fuse were also loose. My feeling is a combination of both those things.

It’s crazy that some of the end results to their flow charts is just replace boards 😂 Mitsubishi are a bit better in that they have testing points and voltages in their service manuals.

Well now that I see it 😂

@@hvacraustralia sorry legend haha no sleep tonight for you

Also the fan shroud should've be left on and then duct over the top.

It’s a shit show of a job. I have don’t more reading into this and changed my mind on what should be our next step. I underestimated the impact of the missing shrouds. I’ve now recommended we replace them, adjust the ductwork and remeasure the static pressure.

@@hvacraustralia I'm no engineer but I think spiral duct the size of the shroud opening essentially fan blade width would be the go for these. Either way your more switched on cookie than the guys that slap these in the first place 🫡

I ended up recommending a fair few reworks to these units. First choice is getting the manufactures shrouds back on and getting new ductwork, then remeasure the static pressure and go from there. Hopefully they go ahead with it. We’ll see though 😂

Next time I do an update I’ll film the entire process and explain what the updates achieve. Sometimes it’s countermeasures to problems they seem in the field and other times it’s new features.

@@hvacraustralia That’s awesome! I’m part of the facilities committee for my church, and we have 3 AE-200s that are on slightly older firmware. I downloaded a copy of the 7.99 firmware and I’m keen to know what it does and what I need to take note of before I upgrade them. While I’m not trained to access the compressors, it’s really neat to know that their firmware can be upgraded. Never knew that before!

Absolutely. This entire install is a shit show.

If the end result is more airflow then absolutely. More airflow across the coil means it won’t need to run as hard to maintain the suction pressure on this instance. This is a few issues I’m working through with this one. Yet to land on the next course of action.

It’s a good point. Give the fan the ability to ramp up to 100% if it needs to. I guess it probably just comes down to wear and tear. If it doesn’t need to ramp up to X RMP’s then why let it. I looked in both the installation manuals and service manuals for these units and it only mentions that you can increase the static if required. Nothing about guidelines on how to install condenser ductwork. I guess they know people do it so they will give you an option to increase static pressure but they don’t really want to give specifications. Maybe a liability thing? I’ve been doing a lot of reading and talking to people about this situation since filming this (filmed this a few weeks ago) and I completely agree with you about the shroud. I believe this is why my static was lower than I thought it would be. The air isn’t being drawn over the fan as designed meaning a lot more turbulence around the fan, resulting in lower airflow across the coil and low suction pressure that I’m seeing. I underestimated its impact. Only issue is, unless they rip off the roof, the only way I see to make it better is to design a makeshift low profile shroud and install it on the ductwork forcing the air over the fan as intended and remeasure the static. The height of the room really messes with any other solution I’ve thought of. It’s a real shit show.

@hvacraustralia Curious to see what they end up doing with it! Shrouds will definitely help that a lot, but you're right, bit of a prick to do it after the fact. Here's a random question for you, have you ever seen one of those outdoor units freeze up outside in free air when it's 20c? Just saw one on the roof of a random building, solid block of ice in direct sunlight. Just defrosted as I'm typing this. Figured they'd defrost waaaaaaay earlier than that.

I changed my recommendations and said we need to make alterations based on getting the shrouds back on. Once they’re back on I’ll remeasure the static pressure and adjust accordingly. Thanks for the feedback. Promoted me to read further into it and get a better understanding. I haven’t seen one, but Ive heard about it happening. I think it was a bypassing valve. Was it a YNW? The look for certain parameters before it goes into defrost. TH3 temp below -5 for X amount of time, compressor durations time from memory.

@hvacraustralia No worries! I always learn a lot digging into stuff like that. It's nice chatting to techs that actually give a shit about getting to the root of the problem. Looking forward to the follow up vid! Seems like it's something that's hard to quantify without actually trying it, but most papers I can see online directly correlate the fan blade tip clearance with static pressure, so in theory shrouds should help a lot! Unfortunately, I have no idea what the units actually were, mainly a refrig apprentice now, don't have much to do with AC. They were just on the top of a random building we don't service. Same circular shroud as all the mitsi's I see on google but more of a square top edge.

Pretty much this. Originally the roof wasn’t meant to be there. The installing company also went a bit rogue with the unit locations and ductwork. It’s a real shit show.

Thanks mate. Glad you enjoy it.

Looks like it’s just stripped the flat section inside the blade and just kept spinning. Eventually the nut just fell off.

Thanks for that mate. It doesn’t bother me too much 😂 might replace it one day.

😂

😂 it was good timing. I didn’t smell anything, but maybe I’m just used to it now.