Glossary of Common Terms & Descriptions
C
Compressor -
The compressor is the heart of the system. The
compressor does just what it’s name states. It compresses the low
pressure refrigerant vapor from the evaporator and compresses it into a
high pressure vapor.
The inlet to the compressor is called the “Suction Line”. It brings the low
pressure vapor into the compressor.
After the compressor compresses the refrigerant into a high pressure
Vapor, it removes it to the outlet called the “Discharge Line”.
Condenser Coil -
The “Discharge Line” leaves the compressor and runs
to the inlet of the condenser coil located on top of the cabinet. Because
the refrigerant is compressed, it is a hot high pressure vapor (as pressure
goes up – temperature goes up). The hot vapor enters the condenser coil
and starts to fl ow through the tubes. Cool air is blown across the outside
of the fi nned tubes of the condenser coil (usually by a fan or water with
a pump)
.
Since air is cooler than the refrigerant, heat jumps from the tubing to the
cooler air (energy goes from hot to cold – “latent heat”). As the heat is
removed from the refrigerant, it reaches it’s “saturated temperature” and
starts to “fl ash” (change states), into a high pressure liquid.
The high pressure liquid leaves the condenser coil through the “liquid
line” and travels to the “metering device”. Sometimes running through a
fi lter dryer fi rst, to remove any dirt or foreign particles.
D
Defrost -
The term is used to identify the function of a refrigerator or
freezer to remove frost or ice from the internal evaporator coil.
Differential -
An increment in a given function, expressed as the product
of the derivative of that function and the corresponding increment in the
independent variable
An example of "differential" is below.
E
Energy Saving Mode -
A mode automatically activated during periods
when the kitchen is not operating. After four (4) hours of no door openings,
the cabinet will revert to the energy saving mode.
F
FLEXTEMP Mode (*optional feature) -
This option provides the
ability to select a unique refrigerator temperture from 28°F to 40°F for
multipurpose applications.
H
HACCP Functions -
The
V-TEMP™
controller records all critical
temperature events including the date and time when the alarms
occurred.
M
Manager's Lockout Feature -
This feature prevents unauthorized
employees from changing programmed settings on the control panel.
S
Setpoint -
This
is the refrigerator or freezer cut out temperature set
by the operator. Prior to shipping, refrigerators are factory preset at
35°F and freezers are factory preset at -2°F.
SUPERCOOL Mode -
When initiated, this feature provides a "constant
on" refrigeration condition for when food has just been loaded into a
refrigerator and needs to be quickly brought down to a safe temperature
protecting costly food investment and extending product shelf life.
Cut-In (36°F)
Cut-Out (32°F)
4°F Differential
