Toshiba AC Central Systems Integration - AB protocol

Share your Projects! Custom Integrations
83

Hi,

I would be very interested in being able to add my Estia R32 to my Home Assistant.
The model is HWT-1101XWHT.

I have 2 questions:

  1. Do you have any finished boards left to be shipped to EU?
  2. Can i connect this board to AB inside the hydro unit or does it have to be 2 screws in the wall controller? I would kinda prefer it not to be visible.

thanks

84

Hi @peraklo , yes, I have some boards left, but i am currently on holiday and will not be back until mid next week. I will put some more on ebay then and let you know.
The boards just connect to any point on the AB line and you should be able to install them wherever you want, including inside the unit if there is room. Just mind that wifi can be heavily attenuated inside a metal case.

85

I’m interested in purchasing one of these for an outdoor unit TOSHIBA MMY-MAP1604HT8 – VRF with 6 interior units attached (MMD-AP0126MPHY and MMD-AP0096MPHY) with individual controllers on each RBC-AMS41E(SX-A5EE) or RBC-AMS55E.

86

You can send me private message or contact me with information in this thread Sell Air Conditioner Control Module. Local & Fast

87

Hi @ThrillhouseMelb, given your system design, if all controllers can be controlled completely independent, I believe you would need 6 boards, on for each independent indoor unit. A better solutions would be to control the system through the U1-U2 bus (different tot he AB bus) that interconnects all the units. My module cannot do that, however, see previous post for a solution that might work for you (I haven’t checked myself, but according to the description it should work for your case). In any case, if you want to get a board or more from me, I’ve put some on ebay and I will have some more ready in a week or so.

Miquel

88

Thanks @dzungpv, your project seems very promising. However, I followed your links and inspected your repo, and I cannot find any info on the design of your board for Toshiba systems. You announced this as an open source project, but it seems that this is not the case, which is a bit disappointing.

Anyway, it seems like an interesting option.

Miquel

89

Hi Makusets,

First of all, thank you very much for your work on the Toshiba AB-bus project. It’s a really great project and exactly the kind of local Home Assistant integration I was looking for.

I have a Toshiba ESTIA HWT-601XWHT6W-E (R32) heat pump and I would be very interested in purchasing one of your fully assembled boards!

If you have one available, or when you have one available again, please let me know. I would be happy to purchase one and have it shipped to Latvia!

Thanks again for your work on this project!

90

@makusets it is not opensource project, I never say that, and it is difference from your project, using homebus protocol and it handle all the child indoor units in the VRF system over U1U2/U3U4 port, It will be available next week and I will email you when it is ready to ship, if you are still interest it.

91

Hi @ruudiss, I have one board left on ebay at the moment. Search for makusets and you should find it. I send them anywhere, Latvia too!

Miquel

92

Hi, I’m looking for 3x v3.2 boards to control a RAS-M07U2DVG-E, RAS-M10U2DVG-E, RAS-M22U2DVG-E and RAS-3M26U2AVG-E outdoor unit. Is there any chance of getting these shipped to Italy? Thanks

93

Ciao Matteo, I run out of boards at the moment. I should have some more ready in 10 days or so and I will put them back on eBay. I will let you know.

1 Like
94

Hi @makusets, great project! I’d be interested in one v3.2 board from your next batch for a Toshiba ESTIA R410A (1st gen, hydro unit HWS-804XWHT6-E1) with wired remote, shipping to Austria. Could you send me a PM with price incl. shipping? Happy to report back on how it works with the 1st-gen ESTIA. Thanks, Tom

95

Thanks @tomheinisch, if you are happy using eBay, I will let you know when I put more on. Typically is goes around 40-45 Euro including shipping and taxes.

I put them for $25 AUD, the rest is calculated by eBay.

1 Like
96

Thanks @makusets , in the meanwhile I decided to build it from JLCPCB to learn something new. If everything works I might have a couple to sell to whoever might needs it.

97

Hi @makusets, great project! I’d like one fully assembled v3.2 board from your next batch, shipped to Italy.
My system: Toshiba Estia 1st gen R410A, single-phase hydro unit HWS-P1104XWHM3-E, wired remote HWS-AMS11E. I plan to connect it on the A/B terminals behind the wall remote.
Happy to buy via eBay, please let me know when it’s listed. Thanks!

Giuseppe

98

thanks @giumazzi , I will let you know when they are ready

99

That sounds like a good idea @mdacrema . You will easily move them on, no doubt.

100

Hi @makusets, I have the HWS-805XWHT6-E without an additional controller (just the one on the heat pump). Will this work with my heat pump? Let me know when I can order.

101

Yes, it should work for your heat pump. I have put some more boards on eBay, just search for “makusets”

102

@giumazzi, @tomheinisch, I have put some more boards on eBay