AHT Cooling Systems GmbH
page 10
2 Product description
General information
In the product design, the manufacturer has
considered the environmental and disposal-
friendliness of the device, in particular, for the
refrigerant propane (R-290) and the propellant
pentane (for the insulating foam). Propane does not
have any ozone depletion potential (ODP) and only a
very low Global Warming Potential (GWP) of 3.
Technical data
Important technical data can be found on the serial
plate (see
→
chapter 2.2.1).
External
dimension
Maximum tota
weight unit
See
→
Model-Types
overview
Airborne noise
emissions
Emission sound pressure
level < 70 dB(A)
Application/Operating mode
Setting
Customer specific
A1
Customer specific
A2
Refrigerator
A3
Freezer
A4
Ice cream freezer
A5
Technical interfaces
Power supply
AC 110-120V / 1PH/ 60 Hz
Connector types
NEMA L5-15
NEMA 5-15
Power cord
or
IEC-box with plugged-in cables
(see
→
chapter 7.1)
Unit –
connection cables
Labeling flag with
snowflake
Light-
connection cables
Labeling flag with
lamp
combined Unit/Light-
connection cables
No labeling flag
Minimum requirement
for power cords
Minimum cross-section
18AWG
cabling
3-pin cable
Electrical protection
(see
→
chapter 7.2)
Fuses
Rated
current
[A]
Triggering
characteri
stics
Type
Fault
current
[mA]
for
110-120V
CB
15
C
(time-lag)
_
_
GFCI
≥
40
_
Surge current
strength,
short-time
delayed
(e.g. G/AP-R)
30
RCBO
15
C
(time-lag)
Surge current
strength,
short-time
delayed
(e.g. G/AP-R)
30
Customized deviations possible.
Further information: Maintenance services (see
→
chapter 10.4).
Serial plate and serial number
When handling the unit, the information on the serial
plate must be observed. The serial plate is located on
the back side of the unit and contains important
technical data:
Model,
Serial number (see
→
chapter 10.4),
Recommended operating ambient
temperature* (see
→
chapter 1.3),
Nominal voltage /frequency,
Nominal consumption
Nominal current,
Refrigerant and quantity,
Date of production,
Certification marks,
Further technical data
*These units are designed to meet ANSI/ NSF
®
Standard #7 requirements in air conditioned stores,
where temperature is maintained at or below the
specified levels and relative humidity is maintained at or
below 55%. Proper installation is required to maintain
certification.
Levels specified at
serial plate
Recommended operating
ambient temperature
Type I (75°F/24°C)
Between 16°C (61°F) and
24°C (75°F)
Type II (80°F/27°C)
Between 16°C (61°F) and
27°C (80°F)
Intended purpose
For storing, displaying or dispensing of pre-packed ice
cream, pre-packed frozen or medium temperature
foods depending on setting (setting see
2.2).
Further information see
→
chapter 1.3
3 Layout and function
The equipment is a self contained plug-in unit.
All individual units are delivered ready for operation
and have their own control unit.
All units are delivered with a customer specific factory
setting. Each unit contains one or more hermetically
sealed refrigerant circuits, the components of which
are technically connected to each other permanently.
The units can operate in 5 different operating modes
(see
→
chapter 4.2.1.2):
Two settings „Customer specific“,
Refrigerator,
Freezer or
Ice cream freezer.
The waste heat generated in the unit is discharged to
the ambient air via an air condenser.
The unit is defrosting automatically to keep the inner
tank free of frost and ice. The unit works properly
even when the frost/ice accumulates on the surface
of the inner tank. Automatic defrost and the button
[MAN. DEFROST]
for semi-automatic defrost are set
inactive in freezer mode.
