THIS IS NOT IMPLEMENTED!!!!! DO NOT USE. See rpi_EnviraCOM
Home Assistant support for Honeywell (Resideo) digital hot water controllers used on Bradford White, AO Smith, Rheem and other hot water tanks.
Visit the Home Assistant community if you need help with installation and configuration.
- water temperature (°F) for upper and lower tank
- heater running on/off detection
- setting target temperature
- home/away/vacation modes
The 'master' branch of this custom component is considered unstable, alpha quality and not guaranteed to work. Please make sure to use one of the official release branches when installing using HACS, see what has changed in each version.
Make sure that Home Assistant Community Store (HACS) is setup, then add the "Integration" repository: rsnodgrass/hass-honeywell-whc.
Note: Manual installation by direct download and copying is not supported, if you have issues, please first try installing this integration with HACS.
Example configuration:
water_heater:
- platform: honeywell_whc
name: "Hot Water Tank"
port: /dev/ttyUSB0The following is a simplest Lovelace card which shows data from the Flo sensors:
type: entities
entities:
- entity: water_heater.honeywell_whc
- entity: sensor.honeywell_whc_temp_upper
- entity: sensor.honeywell_whc_temp_lower- home/away/vacation mode
- setback schedule
- operation_mode: eco (forced 120?)
Bradford White sold several "ICON" kits that allowed controlling the Honeywell gas valve temperature settings through a remote thermostat with scheduling, as well as water leak detection and automatic water shutoffs. These worked with earlier WV8840 and WV8860 models with a Accessory Module Kit which translated the older serial communication from the front mounted COM port to the EnviraCOM 1.1 protocol. This Accessory Model allowed hooking up their ICON EnviraCOM smart Setback Controller (PN 239-48559-00) thermostat which enabled setting the maximum hot water temperature, as well as a full weeks schedule for hot water tank temps at multiple times of the day. The ICON Setback Controller was a EnviraCOM compatible thermostat controller which meant that other EnviraCON heater controls might work as well. Interestingly enough, the Rheem EcoNet Home Comfort WiFi Module speaks EnviraCOM as well, and completely works with the ICON Accessory Module Kit to control the Honeywell temperature settings. Not only that, but the Rheem EcoNet unit also includes WiFi ability (allowing control via iOS and Android apps), but also includes a water leak sensor, and can be purchased for about $20 on eBay. This also means that any gas water heater with the WV8840/WV8860 model controls can be integrated easily into home automation systems that support EcoNet.
Parts needed:
-
Bradford White ICON 239-47872-00 Accessory Module Kit (part WHACCPKG1005) or the individual module (part WHAM03A1004)
-
Rheem EcoNet Home Comfort WiFi Module for Gas Heaters (part REWRA631GWH / PCB board RCBD-0012042428-00-C)
| Accessory Module Wire | Rheem EcoNet Wire | EnviraCOM Pin | Description |
|---|---|---|---|
| D/1 | Yellow | 1 | Data/Signal |
| R/2 | Black | 2 | 24 Vac |
| C/3 | Red | 3 | 24 Vac |
Connect the above wires from the Rheem EcoNet WiFi Module to the listed connection on the ICON Acessory Module. Then follow the standard Rheem EcoNet settings to connect to WiFi, and you can then control any gas water heater with these Honeywell smart gas valves. Besides the iOS/Android apps, you can also now easily integrate this with your favorite smart home automation platform, such as Home Assistant. The only thing that does't appear to work is that the Home/Away setting does not seem to change any behavior for the water heater.
Regarding the dial on the front of the Honeywell WV8840/WV8860.
| Dial Setting | Min Temp (F) | Max Temp (F) |
|---|---|---|
| LOW | 55 | 55 |
| (dot) | 85 | |
| HOT | 125 | |
| A | 90 | 125 |
| B | 90 | 140 |
| C | 90? | 140? |
| VERY HOT | 90? | 140? |