Thetford T2090C Compressor Fridge connections

This is the T2090C touchscreen compressor refrigerator in the T2000 installation manual. The model table, page 7, gives a 0.34 kWh/24 h laboratory energy figure under its stated ISO test conditions. It does not publish a running or startup current for this entry. Converting that daily energy to a constant current would understate compressor wiring requirements, so the current field remains unknown.

The connector table, page 8, identifies the Stocko VV2041 power connector: pin 1 is red positive and pin 2 is white negative. Its separate Molex CI-bus connector has pin 1 white data and pin 2 white/blue ground. The catalog marks the latter as leave open, because the electrical instructions on page 21 explicitly prohibit connecting the CI-bus ground. Appliance and master instead share the main supply ground as instructed; the CI contacts must not become power rails.

Protect the positive feed with 15 A near the source. The page 8 table specifies 2.5 mm² for cable length below 2.5 m, 4 mm² below 4 m, or 6 mm² below 6 m. Maintain 10.4–16 V at the refrigerator. Follow the manual's length convention and retain service slack; do not replace these requirements with a wire size derived from the daily energy test.

The ventilation diagram, page 14, specifies the T2090C's bottom, rear and upper clearances. Keep its airflow route open. The extra side-vent requirement for T2090E is a different model instruction. Page 21 also calls for house-battery supply, storage isolation and the applicable CI-bus master protection.

Check the power connector cavities and polarity before energising, then measure loaded voltage, test cooling and verify the controls. Leave optional CI-bus wiring disconnected unless its complete master installation is verified. The detail page provides a connector and installation overview because neither a complete running-current specification nor a universal control topology is established by this manual.