Watkins Wellness Caldera Retrofit Matrix 50Hz — TS CAL DOC 10/14/19
Grade B · authorized-document · reopened 2026-10-04
Manufacturer-authored Watkins Wellness retrofit matrix mirrored by a specialist.
Open source ↗PART REFERENCE / CONTROL PLATFORM
76839
76839 is the Caldera control platform published as "Caldera Eagle 50Hz Retrofit Control Box". This reference holds 4 source-verified records for the Utopia and Paradise series, spanning 2002–2010, 4 of them conditional.
SOURCE-VERIFIED REFERENCE — This page is built only from records that passed the source-verification gate. A record marked CONDITIONAL FIT still requires the exact configuration checks shown on that record.
Compatible models / service scope
| Model / scope | Years & build date | Relation | Restrictions & companions | Status |
|---|---|---|---|---|
| Utopia SeriesSeries-level record; no individual model named. | 2002–200850 Hz market. Platform: PUG → EAGLE. | retrofit | 50Hz retrofit only.Requires documented 1.XXC software/configuration and front-panel mounting.If the spa has factory SpaGlo, the matrix requires the lighting retrofit kit.Use 76846 control panel and 76858 heater relay board with the 76839 Eagle control box.Use 78864 when required for factory SpaGlo installations.50 Hz market.Platform: PUG → EAGLE. | CONDITIONAL FIT |
| Paradise SeriesSeries-level record; no individual model named. | 2002–200950 Hz market. Platform: PUG → EAGLE. | retrofit | 50Hz retrofit only.Requires documented 1.XXC software/configuration and front-panel mounting.If the spa has factory SpaGlo, the matrix requires the lighting retrofit kit.Use 76846 control panel and 76858 heater relay board with the 76839 Eagle control box.Use 78864 when required for factory SpaGlo installations.50 Hz market.Platform: PUG → EAGLE. | CONDITIONAL FIT |
| Utopia SeriesSeries-level record; no individual model named. | 2009–201050 Hz market. Platform: ORCA → EAGLE. | retrofit | 50Hz retrofit only.Requires documented 1.XXC software/configuration and front-panel mounting.If the spa has factory SpaGlo, the matrix requires the lighting retrofit kit.Use 76846 control panel and 76858 heater relay board with the 76839 Eagle control box.Use 78864 when required for factory SpaGlo installations.50 Hz market.Platform: ORCA → EAGLE. | CONDITIONAL FIT |
| Paradise SeriesSeries-level record; no individual model named. | 201050 Hz market. Platform: ORCA → EAGLE. | retrofit | 50Hz retrofit only.Requires documented 1.XXC software/configuration and front-panel mounting.If the spa has factory SpaGlo, the matrix requires the lighting retrofit kit.Use 76846 control panel and 76858 heater relay board with the 76839 Eagle control box.Use 78864 when required for factory SpaGlo installations.50 Hz market.Platform: ORCA → EAGLE. | CONDITIONAL FIT |
Original, service or retrofit?
76839 is the Caldera control platform published as "Caldera Eagle 50Hz Retrofit Control Box".
Every 76839 row is a conditional retrofit record for the Utopia and Paradise series: it documents a platform conversion from the original setup, not factory-generation history.
Required or dependent companion parts
- 76846 Use 76846 control panel and 76858 heater relay board with the 76839 Eagle control box.
- 76858 Use 76846 control panel and 76858 heater relay board with the 76839 Eagle control box.
- 78864 Use 78864 when required for factory SpaGlo installations.
Before you order
Derived only from the model/year scope, restrictions and companion requirements published for 76839.
- Confirm your spa is in the documented series
Utopia and Paradise series records are published at series level; this source does not name individual models, so confirm your spa belongs to the documented series and year scope.
- Confirm the published restriction
50Hz retrofit only.
- Confirm the published restriction
Requires documented 1.XXC software/configuration and front-panel mounting.
- Confirm the published restriction
If the spa has factory SpaGlo, the matrix requires the lighting retrofit kit.
- Order the required companion hardware
Use 76846 control panel and 76858 heater relay board with the 76839 Eagle control box.
- Order the required companion hardware
Use 78864 when required for factory SpaGlo installations.
- Resolve the conditional fit
Conditional retrofit, not factory-generation history. Confirm 50Hz market, original PUG/ORCA platform, software/configuration and lighting before service.
- Do not rely on a serial lookup
No public serial range is asserted for these records; identify your spa by model year and, where shown, manufacture date.
Frequently asked questions
What is 76839?
76839 is the control platform recorded as "Caldera Eagle 50Hz Retrofit Control Box". It is documented at Utopia and Paradise series level.
Which models and years does 76839 fit?
Utopia Series: 2002–2008; Paradise Series: 2002–2009; Utopia Series: 2009–2010; Paradise Series: 2010.
Is 76839 a factory-installed part or a service replacement?
Retrofit for the Utopia and Paradise series. A retrofit record describes a documented platform conversion, not factory-generation history.
What should I confirm before ordering 76839?
50Hz retrofit only.; Requires documented 1.XXC software/configuration and front-panel mounting.; If the spa has factory SpaGlo, the matrix requires the lighting retrofit kit.
What evidence supports the 76839 record?
"Watkins Wellness Caldera Retrofit Matrix 50Hz — TS CAL DOC 10/14/19" (Grade B). Each source is linked in the evidence panel with its retrieval note.
Evidence & sources
1 reopened source · source-specific compatibility only