Selecting refrigeration for a medium or large delivery vehicle involves more than matching a unit to box dimensions. Cargo temperature, insulation, ambient conditions, route profile, door openings, vehicle architecture and available power all affect the application.
The Thermo King V-520 Rooftop provides a roof-mounted option within Thermo King’s direct-drive range. The OEM specifically positions the arrangement for medium to large insulated vans and body-on-chassis vehicles with reach-in side compartments. Non-standby configurations extend approximately six inches above the roof according to Thermo King.
The V-520 Rooftop uses an engine-mounted TK-16 compressor or optional TK-312 reciprocating compressor. Current OEM information identifies R134A for fresh applications and R452A availability for MAX and SPECTRUM configurations intended for frozen and multi-temperature applications.
For Canadian fleet operators, configuration should start with the actual operating requirement rather than the model name alone. Thermo King Eastern Canada can review the vehicle, body, cargo temperature, delivery cycle and standby requirements to determine whether the V-520 Rooftop — or another Thermo King configuration — is appropriate.
Key Benefits
- Rooftop packaging: Designed for suitable medium to large insulated vans and body-on-chassis applications, including vehicles with reach-in side compartments.
- Fresh and frozen configuration paths: Current OEM information identifies R134A for fresh applications and R452A availability on MAX and SPECTRUM configurations for frozen and multi-temperature applications.
- Optional electric standby: SmartPower 230 VAC electric standby is available, allowing applicable configurations to operate from electrical power when the vehicle is stationary.
- Automatic hot-gas defrost: A standard listed feature that supports evaporator defrost management.
- Heating availability: Hot-gas heat is available on V-520 RT MAX and SPECTRUM configurations.
- Door-switch option: Thermo King offers a door-switch kit that stops refrigeration when vehicle doors open and automatically restarts the system after they close.
- Cold-weather accessory: An available snow cover is designed to protect the condenser against snow and ice accumulation in extreme conditions.
Available Options
Door switch kit
Reduces load temperature rise and saves fuel when the vehicle doors are opened by turning off the refrigeration system. Unit will automatically restart when doors are closed.
Din adaptor
The din adaptor box enables the controller to be installed in the vehicle dashboard. The aesthetically-designed box allows the controller to be fitted in any available radio slot.
Hose covers
Highly durable kits providing total protection for hoses and cables while enhancing vehicle appearance. Easily installed on all bodies. Metal and plastic options are available.
Muffler kit
Purpose-designed kit to eliminate transmission of unit vibration and noise into the driver cab. Provides significant gains in driver comfort.
Snow covers
Designed to protect the unit condenser in extreme conditions. The aerodynamically-designed snow cover prevents the buildup of snow and ice on fan blades, avoiding downtime, and additional maintenance costs.
V-520 Rooftop Unit Specs
Refrigeration Capacity
Box Size / Temperature Guide
*Above reference assumes 3” of insulation for 35°F (2°C), 0°F (-18°C) and 4” for -20°F (-29°C); ten door openings per delivery day; box dimensions of 96”W and 96”H on trucks 10’ and over in length.
Expert Service. Maximum Uptime.
Your transport business depends on reliable temperature control—and you can depend on us. With seven full-service locations across Eastern Canada, our factory-trained technicians, genuine Thermo King parts, and responsive support team are committed to keeping your fleet operating at peak performance, wherever the road takes you.
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