OTGW in conjunction with Remeha Gateway

This Forum is about the Opentherm gateway (OTG) from Schelte

Moderator: hvxl

OTGW in conjunction with Remeha Gateway

Postby jake3317 » Mon Apr 25, 2016 9:31 pm

Due to my solar boiler, (Remeha Zenta) the installer installed a Remeha Gateway as well. This because my Remeha Quinta 28C can't communicate with the boiler. The Remeha Gateway has a temperature sensor, conntected to the solar boiler and it also in the loop of the water flow detection sensor. As soon as the temperature of the solar boiler is above the minimum hot water temperature, it cuts the connection of the water flow sensor. This way the Quinta won't even know that hot water is demanded and won't fire up for no reason.

Long story short, can I use the OTGW in between the iSense V19 and the Remeha Gateway?
jake3317
Starting Member
Starting Member
 
Posts: 16
Joined: April 2016

Re: OTGW in conjunction with Remeha Gateway

Postby raymonvdm » Tue Apr 26, 2016 12:06 pm

I think you can if it uses the OpenTherm protocol but when i read the following link it looks like it already has an RS232 interface :?:

http://www.nerdclub.nl/remeha_gateway/
Running HS3PRO on PC with Z-Wave / OpenTherm / Plugwise / RFXcom / MQTT / XAP400 / Logitech Media Server and Squeezelite on PI`s
raymonvdm
Senior Member
Senior Member
 
Posts: 1153
Joined: December 2011

Re: OTGW in conjunction with Remeha Gateway

Postby jake3317 » Wed Apr 27, 2016 10:52 am

raymonvdm wrote:I think you can if it uses the OpenTherm protocol but when i read the following link it looks like it already has an RS232 interface :?:

http://www.nerdclub.nl/remeha_gateway/


Thanks for this link, however my target is to connect the heating system to Domoticz, a home automation program that runs on a Raspberry Pi. The OpenTherm Gateway should also be connected to the RPI, I just wonder if 2 gateways will work.

Could it be that the Remeha Gatewy is not OpenTherm, although the thermostat (iSense) and boiler are?
jake3317
Starting Member
Starting Member
 
Posts: 16
Joined: April 2016

Re: OTGW in conjunction with Remeha Gateway

Postby hvxl » Wed Apr 27, 2016 9:04 pm

Yes, it is possible to have multiple gateways in an OpenTherm connection. Each gateway adds some delay, so there is a limit to the number of gateways you can put in series. But 2 should not be a problem.
Schelte
hvxl
Senior Member
Senior Member
 
Posts: 1223
Joined: June 2010

Re: OTGW in conjunction with Remeha Gateway

Postby yjb » Thu Apr 28, 2016 9:03 am

Hi,

I have used the Remeha Gateway in the past together with the OTGW. That was working fine, but I do not have a solar boiler nor a water flow sensor connected at that time.

Setup:
Quinta 35C - Remeha Gateway - OTGW - Celcia 20

I remember having a conversation of implementing the thermostat schedule programming (normally done through the Remeha Gateway serial interface) supported by OTGW but that turned out to be too complicated.

Regards,
Ysbrand
yjb
Member
Member
 
Posts: 189
Joined: April 2009
Location: Venhuizen, Netherlands

Re: OTGW in conjunction with Remeha Gateway

Postby jake3317 » Mon May 02, 2016 8:24 pm

Well, I am planning to give it a try. Any idea why the order time at the website > 2 weeks? It doesn't say a 'before' or 'within' then and then.
jake3317
Starting Member
Starting Member
 
Posts: 16
Joined: April 2016

Re: OTGW in conjunction with Remeha Gateway

Postby jake3317 » Fri Sep 02, 2016 5:09 pm

I bought a set from a forum member.
jake3317
Starting Member
Starting Member
 
Posts: 16
Joined: April 2016

Re: OTGW in conjunction with Remeha Gateway

Postby jake3317 » Fri Oct 07, 2016 9:40 pm

To finish my own quesion in the OP, the Remeha Gateway is transparent and can be used in conjunction with the OTGW. OTMonitor shows the Solar Storage Temperature on ID=29

Verstuurd vanaf mijn K00C met Tapatalk
jake3317
Starting Member
Starting Member
 
Posts: 16
Joined: April 2016


Return to Opentherm Gateway Forum

Who is online

Users browsing this forum: No registered users and 1 guest