Changing Temperature Set Point - Follett FZR20-LB Installation, Operation And Service Manual

Changing temperature set point

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:
1. Press Menu button (Fig. 67).
2. Use to scroll and highlight Refrigeration Controls (Fig. 68).
3. Press and hold Enter and then
4. When the submenu displays, press
press Enter to select (Fig. 69).
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.
00981795R03 – FZR20/25 LB, PL
ATTENTION
together for 3 seconds.
to highlight Refrig Setpoint,
Fig. 67
- 3 0 . 0 C
B o t t o m Te m p - 3 0 . 0 C
M e n u
Fig. 68
R e f r i g e r a t i o n C o n t r o l s - 3 0 . 0 C
P a s s w o r d o n / o ff
P I N
S e t Ti m e / D a t e
B a c k E n t e r
Fig. 69
C a l i b r a t i o n - 3 0 . 0 C
R e f r i g S e t p o i n t
D i ff e r e n t i a l
H i g h S e t p o i n t L i m i t
B a c k E n t e r
Fig. 70
C N T R L S E T P O I N T - 3 0 . 0 C
- 3 1 . 0 C
B a c k E n t e r
Service 27