Rev 3 Service Manual MCC Hot / Cold 2021
Page 69
EWPlus EO LVD
6/12
INSTRUMENT ON/OFF
The instrument can be switched off by pressing the key
for longer than 5 seconds.
In this condition, the adjustment algorithms and defrost cycles are disabled and the text “OFF” will appear on the display.
USING THE UNICARD/COPYCARD
The Unicard/Copycard is connected to the serial port (TTL) and allows rapid programming of the instrument parameters.
Access “
Installer
” parameters by entering
PA2
, scroll through the folders using
and
until folder
FPr
appears.
Select it using
set
, scroll through the parameters using
and
, then select the function using
set
(e.g.
UL
).
•
Upload
(
UL
): Select UL and press
set
. This function uploads the programming parameters from the instrument to the card.
If the procedure is a success, “
y
”, will appear on the display, otherwise “
n
” will appear.
•
Format
(
Fr
):
This command is used to format the Unicard/Copycard, (recommended when using the card for the first time).
IMPORTANT
: the
Fr
parameter deletes all data present. This operation cannot be cancelled.
•
Download
:
Connect the Unicard/Copycard when the instrument is switched off. At power-on, data is downloaded from the
Unicard/Copycard to the instrument automatically. At the end of the lamp test, the display will show “
dLy
” if the
operation was successful and “
dLn
” if not.
N.B.: After downloading, the instrument works with the settings of the new map just downloaded.
UPLOAD
DOWNLOAD
OR
TABLE OF "USER" MENU PARAMETERs
PAR. DESCRIPTION
RANGE
M.U.
EWPlus 961 EO LVD
EWPlus 971 EO LVD
EWPlus 974 EO LVD
AP1 AP2 AP3 AP4 AP1 AP2 AP3 AP4 AP1 AP2 AP3 AP4
SEt Temperature control SEtpoint
LSE ... HSE
°C/°F
3,5
3,5
3,5
3,5
3,5
1,5
1,0
3,5
3,5
1,5
1,0
2,0
diF Compressor relay activation differential (
diF must be ≠ 0
).
0,1 ... 30,0
°C/°F
2,0
2,0
2,0
2,0
2,0
4,0
2,0
2,0
2,0
4,0
2,0
8,0
HSE Maximum value that can be assigned to the Setpoint
LSE ... 320
°C/°F
99,0 99,0 99,0 99,0 99,0 99,0 99,0 99,0 99,0 99,0 99,0 99,0
LSE Minimum value that can be assigned to the Setpoint
-67,0 ... HSE
°C/°F
-50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -50,0
dty Type of defrost (
0
= electrical,
1
= reverse cycle,
2
= "Free").
0/1/2
num
0
0
1
0
0
0
1
0
dit Interval between the start of two consecutive defrost cycles
0 ... 250
hours
24
24
24
24
24
2
6
24
24
2
6
10
dEt Defrost timeout; determines the maximum defrost duration
1 ... 250
min
30
30
30
30
30
30
30
30
30
30
30
45
dSt Defrost end temperature (determined by evaporator probe)
-67,0 ... 320
°C/°F
8,0
3,0
8,0
8,0
8,0
3,0
8,0
7,0
FSt
Fans stop temperature; if
Pb2 > FSt
, the fans are stopped. The value is
either positive or negative and, depending on parameter
FPt
, can be either
the absolute temperature or the temperature relative to the Setpoint.
-67,0 ... 320
°C/°F
50,0
50,0 50,0 -20,0 50,0
Fdt Fan activation delay after a defrost cycle
0 ... 250
min
0
0
0
0
0
dt
Coil drainage time
0 ... 250
min
0
0
0
0
0
0
0
dFd Allows to select the evaporator probes exclusion during defrost.
y
= yes;
n
= no.
n/y
flag
y
y
y
y
y
HAL Maximum temperature alarm. Temperature value which, if exceeded in an
upward direction, triggers the activation of the alarm signal.
LAL ... 320
°C/°F
50,0 50,0 50,0 50,0 50,0 50,0 50,0 50,0 50,0 50,0 50,0 9,5
LAL Minimum temperature alarm. Temperature value which, when exceeded
downwards, triggers the activation of the alarm signal.
-67,0 ... HAL
°C/°F
-50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -50,0 -2,0
tAO Tempo ritardo segnalazione allarme temperatura.
0 ... 250
min
0
0
0
0
0
0
0
0
0
0
0
30
dCS Deep cooling cycle setpoint
-67,0 ... 320
°C/°F
-2,0 -2,0 -2,0 -2,0 -2,0 -2,0 -2,0 -2,0 -2,0 -2,0 -2,0 -2,0
tdC Deep cooling cycle duration
0 ... 255
min
0
0
0
0
0
0
0
0
0
0
0
0
OSP Offset on setpoint
-30,0 ... 30,0
°C/°F
0,5
0,5
1,0
1,0
0,5
1,0
0,5
0,5
0,5
1,0
0,5
1,0
OdF Intervention differential correction
0,0 ... 30,0
°C/°F
4,0
4,0
2,0
2,0
4,0
2,0
4,0
4,0
4,0
2,0
4,0
2,0
dnt Duration of night mode
0 ... 24
hours
11
11
10
9
11
10
10
11
11
10
10
9
dFt Duration of fast cooling mode
0 ... 24
hours
0
0
1
1
0
1
1
0
0
1
1
1
SPn Night mode setpoint
LSE ... HSE
°C/°F
0,7
0,7
3,0
6,5
0,7
3,0
1,0
0,7
0,7
3,0
1,0
6,5
dFn Night mode offset
0,1 ... 30,0
°C/°F
4,0
4,0
2,0
0,1
4,0
2,0
4,0
4,0
4,0
2,0
4,0
0,1
SPF Fast cooling setpoint
LSE ... HSE
°C/°F
0,0
0,0
-0,5 -6,8
0,0
-0,5 -2,0
0,0
0,0
-0,5 -2,0 -6,8
dFF Fast cooling offset
0,1 ... 30,0
°C/°F
0,1
0,1
0,1
0,1
0,1
0,1
0,1
0,1
0,1
0,1
0,1
0,1
LOC LOCk. Basic commands modification lock.
n
= no;
y
= yes.
n/y
flag
n
n
n
n
n
n
n
n
n
n
n
n
PS1 PAssword 1. When enabled (
PS1
≠
0
) it constitutes the access key for
level1 parameters (
User
).
0 ... 250
num
0
0
0
0
0
0
0
0
0
0
0
0
CA1 Calibration 1. Value to be added to the value read by probe
Pb1
.
-12,0 ... 12,0
°C/°F
0,0
0,0
0,0
0,0
0,0
0,0
0,0
0,0
0,0
0,0
0,0
0
CA2 Calibration 2. Value to be added to the value read by probe
Pb2
.
-12,0 ... 12,0
°C/°F
0,0
0,0
0,0
0,0
0,0
0,0
0,0
0,0
ddL
Display mode during defrost.
0
= display the temperature read by probe
Pb1
;
1
= locks the reading at the temperature value read by
Pb1
when
defrosting starts and until the next time the
SEt
value is reached;
2
= displays the label
deF
during defrosting and until the next time the
SEt
value is reached (or until
Ldd
has elapsed).
0/1/2
num
1
1
1
1
1
1
1
1
1
1
1
1
Ldd Timeout value for display unlock -
dEF
label
0 ... 255
min
30
30
30
30
30
30
30
30
30
30
30
30
H42 Evaporator probe present (
Pb2
).
n
= not present;
y
= present.
n/y
flag
y
y
y
y
y
y
y
y
rEL firmware rELease. Reserved: read-only parameter
/
/
/
/
/
/
/
/
/
/
/
/
/
/
tAb tAble of parameters. Reserved: read-only parameter
/
/
/
/
/
/
/
/
/
/
/
/
/
/
Note
: ** The USER menu parameters also include '
PA2
', which can be used to access the Installer menu.
Summary of Contents for Cold MCC
Page 20: ...Page 20 Rev 3 Service Manual MCC Hot Cold 2021 Circuit diagram evaporator tray...
Page 21: ...Rev 3 Service Manual MCC Hot Cold 2021 Page 21 Wiring diagram evaporator tray...
Page 29: ...Rev 3 Service Manual MCC Hot Cold 2021 Page 29 5 1 MCC 90 Drop in Dimensions Self Serve...
Page 39: ...Rev 3 Service Manual MCC Hot Cold 2021 Page 39 6 0 Installation Front door section...
Page 77: ...Rev 3 Service Manual MCC Hot Cold 2021 Page 77 Page intentionally left blank...
Page 103: ...Rev 3 Service Manual MCC Hot Cold 2021 Page 103 Page intentionally left blank...
Page 139: ...Rev 3 Service Manual MCC Hot Cold 2021 Page 139 17 0 Electrical schematics MCC Cold Self Serve...
Page 140: ...Page 140 Rev 3 Service Manual MCC Hot Cold 2021...
Page 141: ...Rev 3 Service Manual MCC Hot Cold 2021 Page 141 17 1 Electrical wiring MCC Cold Self Serve N L...
Page 142: ...Page 142 Rev 3 Service Manual MCC Hot Cold 2021...
Page 143: ...Rev 3 Service Manual MCC Hot Cold 2021 Page 143 17 2 Circuit Diagram MCC Hot Full Serve...
Page 144: ...Page 144 Rev 3 Service Manual MCC Hot Cold 2021 17 3 Electrical wiring MCC Hot Full Serve...
Page 145: ...Rev 3 Service Manual MCC Hot Cold 2021 Page 145...
Page 146: ...Page 146 Rev 3 Service Manual MCC Hot Cold 2021...
