I-Clearance; J-Installing Optional Interior Kits; K-On/Off Switch; Operation - Traulsen G Series Owner's Manual

III. INSTALLATION (cont'd)
III. i - CLEARANCE:
In order to assure optimum performance, the condensing
unit of your Traulsen unit MUST have an adequate sup-
ply of air for cooling purposes. Therefore, the operating
location must either have a minimum of 12" clearance
overhead of the condensing unit or allow for unrestricted
air flow at the back of the unit. Clearance of at least 12"
above is required in order to perform certain maintenance
tasks.
III. j - INSTALLING OPTIONAL INTERIOR KITS:
In addition to their standard interiors, G-Series models
also offer the option for additional shelves or tray slides.
If ordered, these are shipped as kits along with the unit,
packaged in a separate cardboard box which contains all
the necessary parts and hardware for on-site installation.
To install additional shelves, first remove the white plastic
covers from inside the cabinet. These are located along
the same vertical line as the pins already in place on the
interior side walls, back and center mullion (two and three-
section models). This exposes threaded holes in which
you may position the new shelves. Next insert the gray
plastic shelf pins into these holes and tighten by turning
clockwise with your fingers. After all four pins are in place,
the new shelf should be placed to rest on top of them.
The unused plastic covers may be discarded or saved
for future changes to the cabinet interior.
Installation of optional tray slides varies with each cabi-
net, and with each type of tray slide ordered. To install
optional tray slides, follow the directions packaged inside
the kit carton.
III. k - ON/OFF SWITCH:
An ON/OFF toggle switch for the power supply is pro-
vided. It is located on top of the unit, mounted to the
side of the evaporator housing. This is shipped from the
factory in the ON position.
IV. OPERATION
IV. a - REFRIGERATORS:
Both refrigerators and freezers do not require manual
defrosting. During normal operation, a refrigerator con-
tinuously circulates above freezing cabinet air through the
evaporator coil. An electric defrost occurs every 8 hours
for a maximum length of 25 minutes to melt any frost which
may accumulate on the coil during the compressor "ON"
cycle. With standard holding refrigerators, high relative
humidity is also maintained to prevent dehydration of
stored product.
IV. OPERATION (cont'd)
IV. b - FREEZERS:
During normal operation, a freezer continuously circulates below
freezing cabinet air through the evaporator coil. The coil requires
a periodic defrosting for proper operation. This is accomplished
by an automatic, time activated, temperature/time terminated,
defrost program. The controller is preset at the factory for six
equally spaced defrost cycles within each 24-hour period.
The evaporator fan(s) cycle off with each door opening. The
evaporator fan(s) will cycle on (15 seconds) and off (45 seconds)
during the compressor off cycle. During the compressor on cycle
the evaporator fan(s) will run continuously.
At the start of a refrigerator or freezer defrost cycle, both the com-
pressor and evaporator fans are off. The microprocessor control
will read "dEF" (see figure 5). When this occurs the green defrost
icon (snow flake) will be illuminated.
°F
The electric heater (attached to the coil) is energized. When the
temperature sensor affixed to the coil senses 45°F, the coil is
fully defrosted and the compressor operation is resumed, defrost
heaters are automatically turned off. The evaporator coil fans are
delayed from starting at the termination of a defrost cycle. Fan
operation is automatically resumed, after a short time or temp
delay (whichever comes first). After completion, the total refrigera-
tion system operation is then resumed. During defrost operation,
heat is confined to the coil enclosure to prevent any significant
rise in temperature within the food zone. The fan delay control
function upon termination of a defrost cycle is two-fold. First, to
prevent blowing warm air into the food storage area. Second, to
prevent any condensation on the defrost coil from being blown
into the food storage area.
The microprocessor control is set from the factory to terminate
defrost at 25 minutes for refrigerators and 30 minutes for freez-
ers in the event of a sensor failure. This setting should never be
tampered with, without first consulting the factory.
-4-
°C
SET
FREEZER
Fig. 5