- 12 -
Temperature and Humidity
1. Use of the controller
Fig. 3.1 TEMPERATURE CONTROLLER
1) Keys
SET: To display target set point; in programming mode it selects a parameter or
confirm an operation.
(DEF): To start a manual defrost.
(UP): To see the maximum stored temperature; in programming mode it
browses the parameter codes or increases the displayed value.
(DOWN): To see the minimum stored temperature; in programming mode it
browses the parameter codes or decreases the displayed value.
: To turn on/off the power to the unit.
+ : To lock/unlock the keypad.
SET+ : To enter in the programming mode.
SET+ : To return to the temperature display.
2) Lock and unlock the keys
To lock the keys, press up + down keys + until POF is displayed; to unlock
the keys, press up + down keys + until PON is displayed.
3) Display
During normal operating conditions, the display shows the value measured by
the air regulation probe. In case of active alarm, the temperature flashes
alternately to the code alarm. The LED functions are listed as follows.
LED MODE FUNCTION
ON Compressor enabled
Flashing Anti-short cycle enabled
ON Defrost cycle enabled
ON Fan enabled
Flashing Fan delay after defrost enabled
ON Alarm occurring
ON Temperature measuring unit
Flashing Programming mode
