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IV. a-QUICK CHILLER OPERATION:
The Quick Chiller does not require manual defrosting. During
normal operation, a Quick Chiller continuously circulates below
freezing cabinet air through the coil. The coil requires a periodic
defrosting for proper operation. This is accomplished by an
automatic, time activated, temperature/time terminated, defrost
program, utilizing hot gas from the refrigeration system. The
controller is preset at the factory for six equally spaced defrost
cycles within each 24-hour period. The control will read “dEF”
and the green snowake icon will be illuminated.
At the start of a Quick Chiller defrost cycle, the compressor,
condenser fan and evaporator fan shut off. The hot gas relay
will be energized, this will energize the hot gas solenoid valve
thru the normally open contacts and the condenser fan circuit
will be de-energized thru the (normally closed contacts), and the
compressor will restart. When the evaporator coil sensor reaches
40
0
F the coil is fully defrosted or if the maximum time of defrost
duration (20 minutes) is reached (which ever comes rst) then
the defrost hot gas relay is de-energized. The condenser fan
restarts and the hot gas solenoid valve closes, The compressor
system returns to the cooling mode. Total refrigeration system
operation is then resumed (green snowake icon goes out) and
the display will show def for an additional 10 minutes then return
to reading the inside cabinet temperature. The evaporator fan(s)
are delayed from starting at the termination of the defrost cycle
and will automatically resume by time or temp delay (5 minutes
or 30
0
F coil sensor temperature, whichever comes rst ).
During Quick Chiller defrost operation, heat is conned to the coil
enclosure to prevent any signicant 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 terminated
defrost at 20 minutes in the event of sensor failure. This setting
should never be tampered with, without rst consulting Traulsen’s
Technical Service department at 800-825-8220.
V. a-CLEANING THE CONDENSER/FILTER:
The most important thing you can do to insure a long,
reliable service life for your Traulsen is to regularly clean
the condenser coil and lter.
The microprocessor control will notify you through a
“CLN-FIL” message when the condensing temperature
of the refrigerator reaches 140 degrees F or greater. If
the condensing temperature reaches 160 degrees F
the compressor will automatically turn off . When the
temperature drops below 140 degrees F the compressor
will restart and when the temperature drops below 120
degrees F the alarm will reset.
Disconnect electrical power supply
before cleaning any parts of the unit.
To clean the condenser/lter, rst disconnect electrical
power to the cabinet and remove the front louver as-
sembly. To do so, place hands under the louver panel
and pull out and up to get louver panel off bracket of the
unit. (See diagram below, image shown with optional
drawer(s).
Proceed to vacuum or brush any dirt, lint or dust
from the nned condenser coil/lter, the compressor and
other cooling system parts. If signicant dirt is clogging
the condenser ns or lter, use compressed air to blow
this clear. To replace the louver assembly reverse the
process.
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IV. OPERATION
FREEZER
SET
INTELA-TRAUL
°F °C
V. CARE & MAINTENANCE
SNOWFLAKE ICON