Carel PZD0SNP0E1 Instructions

+050004121 - rel. 1.0 - 19.10.2009
EASY COOL
(PZD0SNP0E1)

Description

PJEZ* represents a range of electronic microprocessor controllers with LED display develo-
ped for the management of refrigerating units, display cabinets and showcases; are designed
for the management of static refrigerating units (no fan on the evaporator) operating at
temperatures above 0°C.
Technical specifi cations
• Electronic controllers for normal temperature static refrigeration units
• Power supply 230Vac
• Ambient probe NTC
• Compressor relay 16A

Dimensions (mm)

74
81
71x29

Panel mounting

Front (with 2 screws ø 2,5x12 mm)
1
Pozidriv type
Do not tighten
excessively
max 2,5
Rear (with 2 quick-fi t side brackets)
1
If necessary, remove the covers to simplify wiring

Electrical connections

:
electronic controllers for normal temperature static refrigeration units
READ CAREFULLY IN THE TEXT!
10
31
38,29
3
2 3
2

Display and functions

During normal operation, the controller displays the value of the temperature read by
probe. In addition, the display has LED that indicate the activation of the control functions
NO POWER
(see Tab. 1), while the 3 buttons can be used to activate/deactivate some of the functions
& SIGNAL
CABLES
TOGETHER (see Tab. 2).

Compressor LED signals

icon function
compressor
status

Table of functions activated by the buttons

button
pressing the button alone
up more than 3 s:
ON/OFF toggle ON/OFF
down more than 3 s:
defrost start/stop defrost
set mute - 1 s.: display/set the set
point
- more than 3 s: access
parameter setting menu
(enter password '22')

Setting the setpoint (desired temperature)

Fig.1
Step Action
1
Keep SET button pres-
sed for 2 s
2 Press UP or DOWN
buttons
3 Press SET button

Accessing and setting the parameters

Step Action
Fig.2 1 Keep SET button
pressed for 3 s
2 Press SET button again Display will visualize "0" blinking
3 Press UP or DOWN
button
4 Press SET button
5 Press UP or DOWN
Fig.3
button
6 Press SET button
7 Press UP or DOWN
button
8 Press SET button
Fig.4
9 Repeat steps 5, 6, 7
and 8 for all desired
parameters
10 Keep SET button
pressed for 5 s
Fig.5
normal operation
ON OFF
on off ON request in
progress
normal operation
pressed together
Pressed together start/
stop
Continuous Cycle
-
Effect
After 1 sec currently setpoint value will
fl ash on display
Setpoint value will chang
Controller will visualize temperature
read by probes again
Effect
After 3 s display will visualize "PS"
Visualized value on display will change Insert password "22"
After 5 s the fi rst parameter, "/5", will
be visualized on display
Parameter list will be scrolled on display
(refer to Table of parameters)
Display will visualize value of the selec-
ted parameter
Parameter value visualized on display
will change
Display will visualize parameter name
again
Controller will visualize temperature
read by probes again
start up
blink
ON
Tab. 1
start up
-
for 1 s display
fi rmware vers. code
for 1 s RESET
current
EY set
Tab. 2
Meaning
It's regulation setpoint
currently active
Set desired value
setpoint is modifi ed and
saved
Meaning
Password is requested
It's the name of the fi rst
parameter
Select desired parameter
It's the currently parame-
ter value
Set desired value
Attention: parameters
updating is not yet active
Attention: now para-
meters updating will be
active