Kelvinator KCHST27.8, Manual, Page: 4 / 48

4 FOOD PREP TABLES
CONTROL PANEL SOLID-STATE THERMOSTAT
FRONT PANEL COMMANDS
SET
SET: To display target set point; in programming mode, it selects a
parameter or confirms an operation.
DEF: To start a manual defrost
UP: To view last alarm occurrence; in programming mode, it browses the
parameter codes or increases the display value
DOWN: To view last alarm occurrence; in programming mode, it browses
the parameter codes or decreases the display value
Key Combination:
To lock & unlock the keyboard
To enter in programming mode
To return to the room temperature display
LED MODE FUNCTION
On Compressor enabled
Flashing Programming phase (flashing with )
Anti-short cycle delay enabled
On Defrost enabled
Flashing Programming phase (flashing with )
Dripping in progress
On Fans enabled
Flashing Fans delay after defrost in progress
On A temperature alarm happened
MAIN FUNCTIONS
1. How to See the Setpoint
1. Push and immediately release the SET key: the display will show the set
point value.
2. Push and immediately release the SET key or wait for 5 seconds to display
the sensor value again.
2. How to Change the Setpoint
1. Hold the SET key for more than 2 seconds to change the set point value.
2. The value of the set point will be displayed and the
LED starts blinking.
3. To change the set value, push the or key within 10 seconds.
4. To set new point value, push the
SET key again or wait 10 seconds.
3. How to Start a Manual Defrost
1. Hold the
key for more than 2 seconds and a manual defrost will start.
4. How to Lock the Keyboard
1. Hold the and keys for more than 3 seconds.
2. The “POF” message will be displayed and the keyboard will be locked. At
this point, it will be possible only to see the set point or the MAX or MIN
temperature stored.
3. If a key is pressed for more than 3 seconds, the ”POF” message will be
displayed.
5. How to Unlock the Keyboard
1. Hold the and keys together for more than 3 seconds, until the “POF”
message is displayed.
ALARM SIGNALS
How to See the Alarm and Reset the Recorded Alarm
1. Hold the or key to display the alarm signals.
2. When the signal is displayed, hold the
SET key until the “rst” message is
displayed. Push the
SET
key again. The “rst” message starts blinking and the
normal temperature will be displayed again.
MESSAGE CAUSE OUTPUTS
“P1” Room probe failure
Compressor output according
to par. “Con” and “COF”
“P2” Evaporator probe failure Defrost end is timed
“HA” Maximum temperature alarm Outputs unchanged
“LA” Minimum temperature alarm Outputs unchanged
“dA” Door open Compressor and fans restarts
“EA” External alarm Output unchanged
“CA” Serious external alarm (i1F=bAL) All outputs OFF
“CA” Pressure switch alarm (i1F=PAL) All outputs OFF
MAINTENANCE
DANGER: THE POWER SWITCH MUST BE TURNED OFF AND THE UNIT DISCONNECTED
FROM THE POWER SOURCE WHENEVER PERFORMING SERVICE,
MAINTENANCE FUNCTIONS OR CLEANING THE REFRIGERATED AREA.
DANGER: NEVER USE A HIGH PRESSURE WATER WASH FOR THIS CLEANING
PROCEDURE AS WATER CAN DAMAGE THE ELECTRICAL COMPONENTS
LOCATED NEAR OR AT THE CONDENSER COIL.
DANGER: NEVER USE STEEL PADS, WIRE BRUSHES OR SCRAPERS!
CAUTION: NEVER USE AN ACID BASED CLEANING SOLUTION！MANY FOOD PRODUCTS
HAVE AN ACIDIC CONTENT WHICH CAN DETERIORATE THE FINISH. BE SURE
TO CLEAN THE STAINLESS STEEL SURFACES OF ALL FOOD PRODUCTS.
REFRIGERATORS AND FREEZERS
The interior and exterior can be cleaned using soap and warm water. If this isn’t
sufficient, try ammonia and water or a nonabrasive liquid cleaner. When cleaning
the exterior, always rub with the “grain” of the stainless steel to avoid marring
the finish.
Do not use an abrasive cleaner because it will scratch the stainless steel and
plastic and can damage the breaker strips and gaskets.
CLEANING THE CONDENSER COIL
The condenser coil requires regular cleaning. Cleaning is recommended every
90 days. In some instances, you may find that there is a large amount of debris
and dust or grease accumulated prior to the 90 day time frame. In these cases
the condenser coil should be cleaned every 30 days.
If the build up on the coil consists of only light dust and debris, the condenser
coil can be cleaned with a simple brush. Heavier dust build-up may require a
vacuum or even compressed air to blow through the condenser coil.