Ingersoll-Rand Thermo King V-520 MAX 30 User Manual

29
Unit Operation
In truck-driven units, temperature control is based on two
values: The setting (Setpoint) of the electronic thermostat and
the evaporator return temperature. The difference between
these two temperatures will determine the mode of operation:
cool, heat, or null.
Cool: When the temperature in the load compartment is
higher than the setpoint, the unit runs in cool mode to reduce
the evaporator return temperature.
Heat: When the temperature in the load compartment is lower
than the setpoint, the unit changes to heat mode to raise the
evaporator return temperature.
Null: Once the Setpoint Temperature has been reached, and
while the temperature remains between X F/C above or below
the setpoint, there is no demand for transfer of heat or cold, and
the unit runs in null mode.
Defrost: After a scheduled period of time in cool mode,
between 1 and 8 hours, the unit runs in this fourth mode of
operation to eliminate ice that has accumulated in the
evaporator coil. Defrost can be initiated automatically or
manually.
Decrease in
Temperature
Temperature Setpoint
Increase in
temperature
X C/F above the setpoint
X C/F below the setpoint
COOL
HEAT
NULL
MODE
29
Unit Operation
In truck-driven units, temperature control is based on two
values: The setting (Setpoint) of the electronic thermostat and
the evaporator return temperature. The difference between
these two temperatures will determine the mode of operation:
cool, heat, or null.
Cool: When the temperature in the load compartment is
higher than the setpoint, the unit runs in cool mode to reduce
the evaporator return temperature.
Heat: When the temperature in the load compartment is lower
than the setpoint, the unit changes to heat mode to raise the
evaporator return temperature.
Null: Once the Setpoint Temperature has been reached, and
while the temperature remains between X F/C above or below
the setpoint, there is no demand for transfer of heat or cold, and
the unit runs in null mode.
Defrost: After a scheduled period of time in cool mode,
between 1 and 8 hours, the unit runs in this fourth mode of
operation to eliminate ice that has accumulated in the
evaporator coil. Defrost can be initiated automatically or
manually.
Decrease in
Temperature
Temperature Setpoint
Increase in
temperature
X C/F above the setpoint
X C/F below the setpoint
COOL
HEAT
NULL
MODE

Ingersoll-Rand Thermo King V-520 MAX 30 Specifications

General

Brand	Ingersoll-Rand
Model	Thermo King V-520 MAX 30
Category	Air Compressor
Language	English