Eliwell IWC 730 VS Bedienungsanleitung Seite 3

The instrument includes a facility for disabling the keyboard:
• using the keys (pressing UP+DOWN simultaneously for 2 seconds; see KEYS AND LEDS)
• by programming the "Loc" parameter (see folder with "diS" label).
If the keyboard is locked, you can access the Programming menu by pressing the "set" key.
The Setpoint can also be viewed.
LIGHTING AND DIGITAL INPUT
The Digital Input D.I.1 can be configured as door switch (parame-
ter H11=3): In this case, a digital output should be provided as
light (parameters Hxx=5). This function allows the light relay to
be activated when the door is opened (if par. dSd=y).
To maintain correct operation, the status is stored in the event of
a black-out; the light key and the light enabling function can also
be enabled if the instrument is on STAND-BY (see par. H06). The
light key always disables the light relay if par. OFL=y.
FUNCTION R.H.%
Pressing the key programmed as R.H.% forces the fans always ON:
the fans operate continuously (always ON). During defrosting the
fans are controlled according to the defrosting parameters. In
particular during the dripping cycle, they will be turned off even
if RH% is enabled. NOTE: R.H.% status takes priority over all
other parameters. In the event of a power failure or when the
machine has been turned off, the RH% status will be restored as
soon as the mains power supply returns/the machine is turned on.
LABEL PARAMETER DESCRIPTION
SEt
SetPoint. Control valure within the range between the minimum set point LSE and the maximum set point HSE.
CP COMPRESSOR
Compressor relay activation differential; the compressor will stop on reaching the Setpoint value entered (on the indications of the controller probe)
diF
and will start up again at a temperature value equal to the setpoint plus the differential value. Note: the value 0 cannot be assumed.
HSE Maximum possible setpoint value*
LSE
Minimum possible setpoint value*
* NOTE: The two sets are interdependent: HSE (maximum set) cannot be less than LSE (minimum set) and vice versa
Temperature value to be added algebraically to the setpoint if reduced set enabled (Economy function). The reduced set can be enabled by pressing a
OSP
key, which must be specially configured for this purpose.
Cit Minimum compressor activation time befor disabling. If set to 0, it is not active.
CAt Maximum compressor activation time before disabling. If set to 0, it is not active.
Compressor on time in the event of a faulty probe. If set to "1" with OFt at "0", the compressor is always on, while with OFt >0 it operates in duty
Ont
cycle mode.
Compressor off time in the event of a faulty probe. If set to "1" with Ont at "0", the compressor is always off, while with Ont >0 it operates in duty
OFt
cycle mode.
Start-up delay. The parameter indicates that a protection is active on the relay actuations of the generic compressor. Between the request and effec-
dOn
tive activation of the compressor relay, at least the specified time must elapse.
Delay after switching off. The parameter indicates that the protection is active on compressor relay actuations. At least the indicated time must
dOF
elapse between switch-off of the compressor relay and the successive switch-on.
dbi Delay between switch-ons; the delay time indicated must elapse between two consecutive switch-ons of the compressor.
OdO Delay time in activating the outputs after switch-on of the instrument or after a power failure. 0 = not active.
dEF DEFROSTING
dtY
Type of defrosting. 0 = electrical defrosting; 1 = cycle inversion defrosting (hot gas); 2 = free mode defrost (independent of compressor).
dit Interval between the start of two subsequent defrosting operations. 0 = the function is disabled (defrosting is NEVER performed)
Selection of count mode for the defrosting interval. 0 = compressor hours of operation (DIGIFROST® method); Defrosting active ONLY with the
compressor on. NOTE: compressor time of operation is counted regardless of the evaporator probe (counting is active if evaporator probe is absent
dCt
or faulty). 1 = hours of appliance operation; Defrost counting is always active when the machine is on and starts at each power-on. 2 = compressor
stop. Every time the compressor stops, a defrosting cycle is performed according to parameter dty.
dOH Defrost start delay time from start up of instrument.
dEt Defrost time-out; determines the maximum duration of defrosting.
dSt Defrosting end temperature (determined by the evaporator probe).
Determines whether the instrument must enter defrosting at start-up (if the temperature measured by the evaporator allows this operation).
dPO
y = yes, starts defrosting at start-up; n = no, does not start defrosting at start-up.
FAn FANS
FSt
Fan lock temperature: if the evaporator probe reads a higher value than the set value, the fans are stopped.
FAd Fan activation intervention differential (see par. "FSt").
Fdt Delay time at fan activation after a defrosting cycle.
dt Dripping time.
dFd Allows exclusion of the evaporator fans to be selected or not selected during defrosting. y = yes (fans excluded); n = no.
IWC 720-730 VS
KEYBOARD LOCKING
FUNCTIONS
DEFROST
Defrosting conditions
The instrument allows defrosting to be performed in the fol-
lowing conditions:
• the evaporator temperature is lower than the defrost end tem-
perature set by the parameter dSt;
• manual defrosting is not already activated (see); in this case the
request for automatic defrosting will be cancelled.
Automatic defrosting
In this case, defrosting takes place at time intervals set by para-
meter dit (= 0 defrosting will not take place at all).
As mentioned above, if the parameter dit> 0 and defrosting con-
ditions apply (see parameter dSt), defrosting will take place at
fixed intervals and according to the parameter dCt.
PARAMETERS TABLE
RANGE M.U. DEFAULT
LSE ... HSE °C/°F 0.0
-0.1 ... +30.0 °C/°F +2.0
LSE ... 302 °C/°F +50.0
-58.0 ... HSE °C/°F -50.0
-30.0 ... +30.0 °C/°F 0.0
0 ... 250 min 0
0 ... 250 min 0
0 ... 250 min 0
0 ... 250 min 1
0 ... 250 sec 0
0 ... 250 min 0
0 ... 250 min 0
0 ... 250 min 0
0/1/2 num 0
0 ... 250 hours 0
0/1/2 num 0
0 ... 59 min 0
1 ... 250 min 30
-50.0 ... 150.0 °C/°F 8.0
n/y flag n
-50.0 ... 150.0 °C/°F 2.0
1.0 ... 50.0 °C/°F 2.0
0 ... 250 min 0
0 ... 250 min 0
n/y flag y
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