Heatcraft Refrigeration Products PRO3 - Manual (Page 10)

10
Installation and Operations Manual
Parameters
Label Characteristic Description
Menu/User
Level
Possible
Settings
DEFAULT SETTINGS
Low
Temp.
Medium
Temp.
High
Temp.
REgULATION
SEt Set Point LS ~ US -10 34 38
Hy Differential
(0,1 ÷ 5,5°C / 1÷55 °F) Intervention
differential for set point. Compressor
Cut IN is Set Point + differential (Hy).
Compressor Cut OUT is when the
temperature reaches the set point
Pr1 1~ 45 3 3 3
LS Minimum set point (- 50°C÷SET/-58°F÷SET): Sets the
minimum value for the set point..
Pr -67 ~ SET -3 5 33
US Maximum set point (SET÷110°C/ SET÷30°F). Set the
maximum value for set point.
Pr SET ~ 30F 37 40 45
Ot
Thermostat probe
calibration
(-1.0÷1.0°C; -10÷10°F) allows
to adjust possible offset of the
thermostat probe
Pr -1~1 0 0 0
OdS
Outputs activation
delay at start up
(0÷55min) This function is
enabled at the initial start up of the
instrument and inhibits any output
activation for the period of time set in
the parameter
Pr
0 ~ 55
minutes
0 0 0
AC
Anti-short cycle
delay
(0÷50 min) minimum interval
between the compressor stop and
the following restart
Pr 0 ~ 50 minutes 4 4 4
COF
Compressor OFF
time with faulty
probe
(0÷55 min) time during which the
compressor is OFF in case of faulty
thermostat probe. With COF=0
compressor is always active
Pr
0 ~ 55
minutes
6 6 6
DISPLAY
CF
Temperature
measurement unit
°C=Celsius; °F=Fahrenheit. WARNING:
When the measurement unit is
changed the SET point and the values
of the parameters Hy, LS, US, Ot, ALU
and ALL have to be checked and
modified if necessary
Pr
°C = Celsius
°F =Fahrenheit
°F °F °F
DEFROST
tdF Defrost type EL = electrical heater; in = hot gas Pr
EL = electric
defrost / in =
hot gas defrost
EL EL EL
dtE
Defrost termination
temperature
(-50÷50 °C/ -58÷1°F) (Enabled only
when EdF=Pb) sets the temperature
measured by the evaporator probe,
which causes the end of defrost
Pr1 -58~1 65 65 38
IdF
Interval between
defrost cycles
(0÷10h) Determines the time
interval between the beginning of
two defrost cycles
Pr1 0 ~ 10 hours 6 6 6
MdF
(Maximum) length
for defrost
(0÷55min) When PP = n, (not
evaporator probe: timed defrost) it
sets the defrost duration, when PP =
y (defrost end based on temperature)
it sets the maximum length for defrost
Pr
0 ~ 55
minutes
40 40 60
Fdt Drip time
(0÷10 min) time interval between
reaching defrost termination
temperature and the restoring of the
control’s normal operation. This time
allows the evaporator to eliminate
water drops that might have formed
due to defrost
Pr1
0 ~ 55
minutes
  0