Request support for Wilson WHP-00315A DHW heat pump

[jkerekes99]

Log message

Adding Domestic Hot Water Heat Pump device with product id cxgbazubxeai6txu
Device matches wilson_whp00315a_dhw_heatpump with quality of 101%. LOCAL DPS: {"1": true, "2": "strong", "5": "heat", "6": "c", "15": 0, "150": "only_heat"}


The 101% match above is against the config I've already written (linked below);
on a stock install with no config present, this device isn't recognised.

Product ID

cxgbazubxeai6txu

Product Name

Wilson WHP-00315A (Aqualux R290 domestic hot water heat pump)

DPS information

I don't have iot.tuya.com API access. DPs confirmed by observation over local push:

- DP 1  bool   — power (on/off)
- DP 2  enum   — mode: smart / mute / strong  (app labels: Smart / Silent / Powerful)
- DP 5  enum   — "heat" (fixed; appears to be a capability flag, not user-settable)
- DP 6  enum   — temp unit: "c"
- DP 15 int    — 0 (unknown)
- DP 150 enum  — "only_heat" (fixed)
- DP 125 raw (base64) — 20x big-endian int32 packed telemetry (tank/in/out/ambient
  temps, voltage, pressures, compressor Hz/rpm). Tank temp = first int32 (verified
  against the app: reads 58 when the app shows 58 C).
- DP 118-124 raw — installer parameter/curve tables (not live sensors)
- DP 127 int   — flow sensor, reads 0x7F7F (32639) = no sensor fitted

Information about how the device functions

I've written and tested a working config (switch + 3-mode select + current-temp
sensor decoded from DP125). It's committed in my fork:

https://github.com/jkerekes99/tuya-local/blob/main/custom_components/tuya_local/devices/wilson_whp00315a_dhw_heatpump.yaml

Inline for convenience:

name: Hot Water Heat Pump

products:
  - id: cxgbazubxeai6txu
    manufacturer: Wilson Heat Pumps
    model: WHP-00315A

entities:
  - entity: switch
    dps:
      - id: 1
        type: boolean
        name: switch

  - entity: select
    name: Mode
    icon: "mdi:heat-pump"
    dps:
      - id: 2
        type: string
        name: option
        mapping:
          - dps_val: smart
            value: Smart
          - dps_val: mute
            value: Silent
          - dps_val: strong
            value: Powerful

  - entity: sensor
    name: Current Temperature
    class: temperature
    dps:
      - id: 125
        type: base64
        name: sensor
        mask: "FF000000"
        endianness: little
        class: measurement
        unit: C

Manufacturer reference: https://wilsonhotwater.com.au/wilson-heat-pumps/
Australian-made, R290, 39 dB "quiet" mode = the Silent/mute setting.

Note: DP125 isn't in the initial pairing fingerprint (it starts pushing a few
seconds after connect), so match quality on a fresh add dips briefly until it arrives.