Carel EASY FREEZE Quick Start Manual Download Page 1

EASY FREEZE 

(PZD0C0P001)

:

 

electronic controllers for low temperature ventilated refrigeration units

+050004122 - rel. 1.0 - 19.10.2009

NO POWER 

& SIGNAL 

CABLES 

TOGETHER

READ CAREFULLY IN THE TEXT!

Display and functions

During normal operation, the controller displays the temperature read by probe 1. In addi-
tion, 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 pres-

sed 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

Accessing and setting the parameters

Step

Action

Effect

Meaning

1

Keep 

SET 

button pres-

sed 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 parameters 

updating will be active 

Description 

PJEZ* represent a range of electronic microprocessor controllers with LED display develo-
ped for the management of refrigerating units, display cabinets and showcases.

Technical specifi cations

•  Electronic controllers for low temperature ventilated refrigeration units
•  Power supply 230Vac
•  Ambient probe NTC
•  Compressor relay 16A
•  Defrost relay 8A
•  Evaporator fan relay 8A

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

                      

Fig.3

serial conv.

IROPZ485S0

prog. key

IROPZKEY* or PSOPZKEY*

Electrical connections

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