This is the truck edition installation manual for Thermo King V-520 RT Models 10, 20, 30 and 50 single temperature systems.
This manual provides step-by-step instructions for installing Thermo King V-520 RT refrigeration systems on trucks. It includes safety precautions, required tools, component dimensions, and detailed installation procedures for refrigeration modules, power packs, condensers, and electrical connections. The guide also covers refrigerant handling, leak testing, and system charging with specific warnings for R-404A and R-134a units.
Installation requires certified technicians with experience in transport refrigeration, proper tools, and a truck body designed for refrigerated applications. Safety warnings address risks from refrigerant exposure, electrical hazards, and improper battery handling.
| Model | V-520 RT |
|---|---|
| Refrigerant | R-404A / R-134a |
| Compressor Oil | Polyol Ester (TK P/N 203-513) |
| Condenser Holding Charge | 35 kPa (5 psi) Nitrogen |
The V-520 RT uses R-404A or R-134a refrigerant.
Only Polyol Ester based refrigeration compressor oil (TK P/N 203-513) must be used.
The condenser is shipped with a 35 kPa (5 psi) holding charge of Nitrogen.
Installers must be certified, experienced mechanics who can safely lift 34 kilos (75 lbs.), understand electricity, have proper tools, and ensure the truck body meets installation requirements.