EASY FREEZE (PZD*C0****)
:
electronic controllers for low temperature ventilated refrigeration units
+050004122 - rel. 1.2 - 28.07.2011
Description
PJEZ* represent a range of electronic microprocessor controllers with LED display developed for the manage-
ment of refrigerating units, display cabinets and showcases.
Technical specifi cations
• Electronic controllers for low temperature ventilated refrigeration units
• Power supply 115 or 230Vac
• Ambient probe NTC
• Compressor relay 16A
• Defrost relay 8A
• Evaporator fan relay 8A
Display and functions
During normal operation, the controller displays the temperature read by probe 1. In addition, the display has
LEDs that indicate the activation of the control functions (see Table 1), while the 3 buttons can be used to
activate/deactivate some of the functions (see Table 2).
LEDs and associated functions
icon
function
normal operation
start up
ON
OFF
blink
compressor
on
off
request
ON
fan
on
off
request
ON
defrost
on
off
request
ON
alarm
all
no alarm
-
ON
Tab. 1
Table of functions activated by the buttons
button
normal operation
start up
pressing the button alone
pressed together
up
ON/OFF
more than 3 s:
toggle ON/OFF
Pressed together start/stop
continuous cycle
-
down
defrost
more than 3 s:
start/stop defrost
for 1 s display
fi rmware vers. code
set mute
- 1 s.: display/set the setpoint
- more than 3 s: access parameter
setting menu (enter password ‘22’)
- mute audible alarm (buzzer)
-
for 1 s RESET
current
EZY set
Tab. 2
Setting the setpoint (desired temperature)
Step Action
Effect
Meaning
1
Keep
SET
button pressed for 2 s After 1 sec currently setpoint value will
fl ash on display
It’s regulation setpoint
currently active
2
Press
UP
or
DOWN
buttons
Setpoint value will chang
Set desired value
3
Press
SET
button
Controller will visualize temperature
read by probes again
Setpoint is modifi ed and
saved
Tab. 3
Accessing and setting the parameters
Step
Action
Effect
Meaning
1
Keep
SET
button pressed
for 3 s
After 3 sec display will visualize “
PS
”
Password is requested
2
Press
SET
button again
Display will visualize “
0
” blinking
3
Press
UP
or
DOWN
button
Visualized value on display will change
Insert password “
22
”
4
Press
SET
button
After 5 sec the fi rst parameter, “
/5
”, will be
visualized on display
It’s the name of the fi rst
parameter
5
Press
UP
or
DOWN
button
Parameter list will be scrolled on display
(refer to Table of parameters)
Select desired parameter
6
Press
SET
button
Display will visualize value of the selected
parameter
It’s the currently parameter
value
7
Press
UP
or
DOWN
button
Parameter value visualized on display will
change
Set desired value
8
Press
SET
button
Display will visualize parameter name
again
Attention
: parameters
updating is not yet active
9
Repeat steps
5, 6, 7
and
8
for all desired parameters
10
Keep
SET
button
pressed for 5 s
Controller will visualize temperature read
by probes again
Attention:
now parame-
ters updating will be active
Tab. 4
Dimensions (mm)
71x29
10
3
33
74
81
36
58
65,29
2
8.5
Fig.1
Panel mounting
Front (with 2 screws ø 2,5x12 mm)
max 2,5
1
2
3
Pozidriv type
Do not tighten
excessively
Fig.2
Rear (with 2 quick-fi t side brackets)
1
2
PUSH
serial conv.
IROPZ485S0
prog. key
IROPZKEY* or
PSOPZKEY*
Fig. 3
Electrical connections
230 Vac
Fig. 4
Use copper conduc
tors onl
y
Ref
. C614A216/R0
1 2 3 4 5
6 7
9 10 11
8
L
L
N
115V~
8(4)A 10(10)A EN60730-1
8A 2FLA 12LRA 12A 10FLA 60LRA UL 873
DEF
. T
.
DI / NT
C
AMB
. T
.
NTC
PROBES
SERIAL
CONV
PROG.
KEY
-10T50
250 Vac
1 2 3 4 5 6 7
9 10 11
8
L
L
N
Use copper conduc
tors onl
y
Ref
. C614A217/R0
8(4)A 10(10)A EN60730-1
8A 2FLA 12LRA 12A 10FLA 60LRA UL 873
DEF
. T
.
DI / NT
C
AMB
. T
.
NTC
PROBES
SERIAL
CONV
PROG.
KEY
-10T50
250 Vac
230V~
Fig. 5
NO POWER
& SIGNAL
CABLES
TOGETHER
READ CAREFULLY IN THE TEXT!
PZD4C0H101
PZD4C0H001
PZD0C0P001
