Electronic Control Parameters; Electronic Control; Operation - Federal TSSM2454SC-3 Instrucciones De Instalación Y Operación

ELECTRONIC CONTROL PARAMETERS

AND EXPLANATION OF OPERATION

Electronic Control

The control parameters are set at the factory and cannot be manually changed in the field.
Control parameter changes can only be made by downloading a new set of parameters using a
program chip supplied by Federal Industries. The pre-set control parameters are listed on the
chart in the Settings Chart on the next page.

Operation

The control uses two sensors, one located in the air stream and one located on the evaporator
coil. The sensor located in the air stream is referred to as the temperature control sensor. The
sensor located on the evaporator coil is referred to as the coil sensor.
The temperature control sensor is located inside the top air duct behind the honeycomb
material and is labeled (TEMP). The sensor location is critical for proper operation on the unit.
Do not move or relocate this sensor.
The coil sensor is strapped to the evaporator coil and is labeled (DEFROST). This sensor
location is critical for proper operation of the unit. Do not move or relocate this sensor.
The temperature control is set to cut in at 39° F. (3.9° C) The Temp control cuts
out at 24° F (-4.4° C) at the coldest setting ( 9 ) and 34° F (1.1° C) at the warmest
setting ( 1 ). The coldest setting is indicated by a "9" on the control display, and
the warmest setting is indicated by a "1".
Refrigerated Self-Serve Merchandiser (High Profile)
DEFROST SENSOR PROBE LOCATION
3" IN FROM COIL HEADER PLATE
CONTROL
MOUNTED TO TOP BACK COIL TUBE
LOCATION
WITH (2) CABLE TIES
SPLICE
Y
W 18GA.
18GA.
BLK
18GA.
BLK
18GA.
7 6 4 2
5 3
CAREL
11 10 9 8
CONTROLLER
32-19864-1
W W
BLK
BLK
OR OR
RED RED
TEMP. PROBE PBI
32-19866
DEFROST PROBE PB2
32-19866
TEMP SENSOR BULB
LOCATED LEFT OF CENTER
IN AIR DISCHARGE DUCT
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