Ingersoll-Rand 900829, Руководство по обслуживанию

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General Description
Introduction
The Thermo King V-520 and V-520 MAX truck
refrigeration systems are two or three piece units.
They are designed for medium-sized trucks and
vans carrying fresh produce and frozen and deep
frozen goods.
The system condenser is mounted on the front of
the truck box or container. The system evaporator
is mounted on the cargo compartment ceiling.
SPECTRUM units have two evaporators. The
main compressor is powered by the vehicle engine
via a belt. The unit is connected to the compressor
by refrigeration hoses. Model 20 and 50 units also
have an electric compressor mounted in the
condenser.
Control circuits operate on 12 and 24 VDC
supplied by the truck batteries for over-the-road
operation. The refrigeration system is protected
by a high pressure cutout and a low pressure
cutout.
The operating mode is selected automatically:
When the unit is connected to an electric power
source, engine-driven operation is automatically
blocked. If the vehicle engine is started up while
the power cable is still connected to the electric
power source, the unit will continue to operate in
electric standby mode. It is not possible to start
the engine-driven compressor until the power
cable is disconnected from the unit.
There are four basic models:
• Model 10: Cool and defrost on truck engine
driven compressor operation.
• Model 20: Cool and defrost on both truck
engine driven compressor operation and
electric standby compressor operation.
• Model 30: Cool, heat, and defrost on truck
engine driven compressor operation.
• Model 50: Cool, heat, and defrost on both
vehicle engine driven compressor operation
and electric standby compressor operation.
Figure 1: V-520 Condenser Unit
Standard Features
• In-Cab Controls with Digital LCD
Thermometer
• Hot Gas Defrost
• Defrost Termination Switch
• Oil Separator
• Liquid Injection
• Main Compressor, 6-Cylinder Swash Plate
Optional Features
• Electric Compressor, Model 20 and 50 Units
• Evaporator Drain Heaters (MAX Units Only)
• Electric/Hot Water Heat (Model 20 before
fourth quarter of 2011 and Model 20
SPECTRUM only)
• Hot Water Heat (Model 10 before fourth
quarter of 2011 and Model 10 SPECTRUM
only)
• Hot Gas Heat (Model 30 and 50 Units Only)
Condenser
The condenser has a unique design that allows it
to be mounted horizontally on the roof, or on the
front of the truck box.
Evaporator
An evaporator is mounted on the ceiling inside the
truck box.
AMA1003