Parameters Concerning Defrost - Carel FCM series Manual

P38: Displaying the % value of the input of probe 1
The parameter can only be displayed.
Access:
Keypad:
Remote control:
Note: P38 has some meaning only in models FCM0001000 and FCM0002000 working in the SLAVE mode where it makes the
instrument display the command signal in %. In the FCM00NTC00 model zero will be displayed.
P39: Displaying the status of digital inputs and outputs
The parameter can only be displayed. It shows the status of input ID1, ID2 and of the output:
Access:
Keypad:
Remote control:
Operating range:
8.7

Parameters concerning defrost

P40: Defrost threshold
P40 indicates the threshold below which defrost starts. It is an absolute value.
Access:
Keypad:
Remote control:
Modes:
Operating range:
Default: P40 = 0.0 (32.0°F).
Note: defrost depends also on the time-delay selected through the parameter P42 and on the minimum time-interval between two
defrosting cycles selected through P44.
P41: Threshold defining the end of defrost cycle
P41 defines the threshold above which defrost ends. It is an absolute value.
Access:
Keypad:
Remote control:
Modes:
Operating range:
from P40 to 100
from P40 to 212
from P40 to 100
Default:
Note: the defrost cycle may come to an end also when the max. time-interval selected through P43 has passed. In this case a dedicated
message will be displayed. P41 can be excluded giving it its max. value (in this case the defrost cycle will always end when its max.
duration has passed, without any message on the display).
P42: Time-delay before starting a defrost cycle
P42 defines the time-delay before starting a defrost cycle, after the threshold set through P40 has been exceeded.
Access:
Keypad:
Remote control:
Modes:
Operating range:
Default:
Note: if the value goes above the P40 threshold before the end of the time-delay, the delay will be zeroed .
FCM electronic regulator
press for 5 seconds;
press "ENABLE" and and
press for 5 seconds;
press "ENABLE" and and
from 00.0 to 11.1
Ü
if C50=1, 3 or 4
Ü
if C50=0 or 2
Ü
if C50=0, 1 or 4
Ü
if C50=2 or 3
only when C00=8
from-40 to P41 for temperature probes or pressure probes with specified refrigerant in °C (C18=0) or
°F (C18=1);
from 0.0 to P41 for humidity probes in rH (C18=2) or pressure probes with specified refrigerant, in bar.
Ü
if C50=1, 3 or 4 press
Ü
if C50=0 or 2 the parameter can only be displayed.
Ü
if C50=0, 1 or 4 press "ENABLE" and
Ü
if C50=2 or 3 the parameter can only be displayed.
only when C00=8.
for temperature probes or pressure probes with specified refrigerant in °C (C18=0);
for temperature probes or pressure probes with specified refrigerant in °F (C18=1);
for humidity probes in rH (C18=2) or pressure probes with unspecified refrigerant in bar.
P41 = 100 (212°F) - threshold excluded.
Ü
if C50=1, 3 or 4
Ü
if C50=0 or 2
Ü
if C50=0, 1 or 4
Ü
if C50=2 or 3
only when C00=8
from 0 to 240 (seconds).
P42 = 5 s.
;
press for 5 seconds;
the parameter can only be displayed.
press "ENABLE" and and
the parameter can only be displayed.
for 5 seconds;
and
press for 5 seconds;
the parameter can only be displayed.
press "ENABLE" and and
the parameter can only be displayed.
23
Ü
0 off status;
Ü
1 on status;
;
;
;
Cod. +302235300 - Rel. 2.0 del 30/11/98