00981795R03 – FZR20/25 LB, PL
Service
27
Changing temperature set point
Fig. 67
ATTENTION
BEFORE MAKING ANY CHANGES TO FACTORY-DEFAULT REFRIGERATION
SETTINGS, CONTACT FACTORY. FACTORY DEFAULT IS IN DEGREES C. IF USER
HAS CHANGED DISPLAY TO SHOW TEMPERATURE IN DEGREES F, ALL OTHER
TEMPERATURES WILL DISPLAY IN DEGREES F.
The temperature control system is preset by the factory to provide a
product temperature of approximately -30.0 C (-22.0 F) on PL models and
approximately -23.0 C (-9.4 F) on LB models. If desired, the evaporator
set point temperature can be changed to achieve a different product
temperature. The set point should be 1.0 C (1.8 F) degrees colder than
the desired product temperature. For example, if you want the product
temperature to be -28 C (-18.4 F), you would change the Control set point
to -29 C (-20.2 F). The factory default setting for the differential 1.0 C (1.8 F)
should not be changed.
Changing the temperature set point:
Fig. 68
1. Press Menu button (Fig. 67).
2. Use
to scroll and highlight
Refrigeration Controls (Fig. 68).
Fig. 69
3. Press and hold Enter and then together for 3 seconds.
4. When the submenu displays, press to highlight Refrig Setpoint,
press
Enter to select (Fig. 69).
Fig. 70
5. Use
to increase or decrease the set point and press
Enter to
select (Fig. 70).
6. Press Back until the main temperature display screen is displayed.
Menu
-30.0C
Bottom Temp -30.0C
Refrigeration Controls
Password on/off
PIN
Set Time/Date
-30.0C
Back Enter
Calibration
Refrig Setpoint
Differential
High Setpoint Limit
-30.0C
Back Enter
CNTRL SETPOINT
-30.0C
Back Enter
-31.0C
