Carel iJW handleiding
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iJW +0300103EN rel. 1.1 - 31.03.2025
Index
7.13 Evaporator fans
To activate the algorithm, simply assign a relay output to the evaporator fan function. In addition, the defrost probe needs to be
confi gured if this is required for control. See “Inputs and outputs”.
Par. Description Def Min Max UOM User User terminal
DOI Assign evaporator fan digital output - see DOA ... 0 6 - S NO
rOI Evaporator fan digital output logic - see rOA 0 0 1 - S NO
The parameters used to manage the fans are shown below.
Par. Description Def Min Max UOM User User terminal
F0 Evaporator fan management:
0 = always on;
1 = activation based on Sd – Sv;
2 = activation based on Sd;
3 = activation based on Sv.
0 0 3 - S NO
F1 Evaporator fan activation threshold (only if F0 = 1, 2, 3) 5/41 -50/-58 50/122 °C/°F S NO
F2 Evaporator fans with compressor off :
0 = see F0;
1 = always off with compressor off ;
2 = on for anti-stratifi cation;
3 = on for humidity control
1 0 3 - S NO
Frd Evaporator fan activation diff erential (including variable speed) 2/3.6 0.1/0.2 20/ 36 °C/°F S YES
iJW manages the evaporator fans as follows:
• F0 = 0 always on;
• F0 = 1 on/off based on diff erence between probes Sd and Sv;
• F0 = 2 on/off based on defrost probe Sd;
• F0 = 3 on/off based control probe Sv.
EC FAN
300100_100_R01
t
ON
ON
OFF
Evap. fan
CMP
F0=0
If parameter F0=0, the evaporator fans are on when the compressor is on
(based on the setting of parameter F2), regardless of the defrost or control
temperature.
Fig. 7.y
If parameter F0=1, 2 or 3, the evaporator fans are on/off based on the diff erence between the defrost and control probe temper-
atures, based on the defrost probe reading or the control probe reading. The fans switch on when the control variable falls below
the threshold F1 value minus the control diff erential Frd, and switch off when the control variable rises above the threshold F1.
300100_101_R01
Sd-Sv/Sd/Sv
t
t
F1
F1-Frd
ON
OFF
FAN
Ref. Description
Sd Defrost probe
Sv Control probe
F1 Fan activation threshold
Frd Diff erential
t time
FAN Evaporator fans
Fig. 7.z
The fans can be switched off in the following situations:
• when the compressor is off (parameter F2);
• during defrosts (parameter F3).
The evaporator fans can be forced on during control (parameter F2) and during defrosts (parameter F3).
Evaporator fans during defrost
When defrosting (parameter F3), the fans can be forced off . During the dripping time (parameter dd > 0) the fans are always off ,
while during the post-dripping time (parameter Fd > 0), the status of the fans can be defi ned by setting parameter Fpd. This is
useful to allow the evaporator to return to temperature after defrosting, thus avoiding blowing warm hot and moist air into the
refrigerated environment.
Par. Description Def Min Max UOM User User terminal
dd Dripping time after defrost (0 = no dripping) 2 0 15 min S NO
F3 Evaporator fans during defrost: 0 = on; 1 = off . 1 0 1 - S NO
Fd Post-dripping time after defrosting
(fans off with control active)
2 0 15 min S NO
Fpd Evaporator fan during post-dripping:
0 = on; 1 = off .
10 1- S NO
Bekijk gratis de handleiding van Carel iJW, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Carel |
| Model | iJW |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 14964 MB |
