63
JDL V1.0 8 2022
REFRIGERATION
Refrigeration is the transfer of heat from one area to another. In the case of this machine, we are transferring
the heat from the area containing the beverage selections to the outside of the machine and dissipating the
heat throughout the room. The more heat we can transfer away from the beverages the colder they become.
This process is accomplished using a sealed compressing system using an ozone friendly gas commonly known
as R290 refrigerant. The system is comprised of several key mechanical components: the condenser, the
evaporator, and the compressor. The condenser is in the lower front left of the machine and it is where the
heat is dissipated from the cooling process and blown to the outside of the machine. The evaporator is located
inside the machine towards the back of the cooling system underneath the beverage unit section being cooled.
Its purpose is to absorb the heat from the drink selections and provide the cool air needed to refrigerate the
beverages. The compressor is the heart of the cooling system, and its purpose is to provide pressure and
circulation of the refrigeration gas.
The refrigeration system is monitored and controlled by several key electrical components: the condenser fan,
evaporator fan, temperature sensor, VMC, and the start and overload components located on the side of the
compressor. The line voltage from the 115-volt AC outlet in the room is fed to the two fans, the condenser
and the evaporator fans, and they run continuously as long as the machine is plugged into 115 volt AC power
coming from the wall. The temperature sensor and VMC control the on and off cycling of the compressor. The
temperature sensor is located on the back side of the refrigeration deck.
To determine if the compressor system is running it is sometimes difficult since the compressor tends to
be very quiet. The sound and slight vibration from the fans running can sometimes be mistaken for the
compressor running. One way to tell if the compressor system is running is to cautiously place your hand on
the compressor to feel if it is warm.
CAUTION
it may be hot to the touch. If the compressor is stone cold and
stays that way for an extended period of time, you can assume there is an electrical problem in the circuitry
or components that operate the compressor. Another way to see if the compressor is running is to feel the air
exiting the condenser coils from the front to see if there is any heat.
Any problems with the fans running can also lead to a cooling system failure. In order for any cooling system
to operate properly it is most important that all fans are running, and that the condenser coil is kept clean and
free of any dust, dirt or obstructions.
COMMON QUESTIONS AND ANSWERS
Product prices, payment systems and currency:
Q. How high can I set my Prices?
A. Each selection can be priced individually up to $99.95. Note: Keep in mind when setting a price that
you may influence the Exact Change Only status of your machine.
Q. Why do the coins I insert reject immediately?
1. Ensure that the changer harness is connected properly.
Note: always disconnect power to
snack vendor before disconnecting and reconnecting payment system harnesses.
2. Ensure there is no pressure on the coin return lever located on the changer itself. Slight pressure
will cause the changer to automatically reject coins.
