Carel RCEZ Series User manual

RCEZS*
RCEZC*
(RCEZ*) -Electronic Controller
Dimensions (mm)
Panel mounting
Rear (with 2 quick-fit side brackets)
Fig. 1
Fig. 2
Fig. 3
RC
Technical specifications
power supply 230 Vac +10 /-15% 50/60 Hz
rated power 3.5 VA
inputs NTC or PTC probes 1 or 2 inputs.
Digital input as alternative to third probe
relay outputs
2 Hp relay 12 A Res. 12 FLA 72 LRA - 250 Vac(RCEZS*),
12 A Res. 10 FLA 60 LRA - 250 Vac(RCEZC*)
8 A relay 8 A Res. 2 FLA 12 LRA - 250 Vac
type of probe
Std CAREL NTC 10 KΩat 25 °C
connections
Screw terminals for cables with cross-sect. from 0.5 mm to 1.5 mm
Plug-in terminals for screw blocks or with crimped contact
Rated maximum current per terminal 12 A.
22
assembly
Screws with rear brackets.
display
3 digit LED display with sign (-199 to 999) and decimal point; six status LEDs
operating conditions -10T50 °C - humidity <90% rH non-condensing
storage conditions -20T70 °C - humidity <90% rH non-condensing
range of measurement
-50T90 °C - resolution 0.1 °C
front panel index of protection
panel installation with IP65 type 1 gasket
case plastic terminal, 81x26x65 mm
classification according to protec
-tion against electric shock
Class II when suitably integrated
environmental pollution
normal
PTI of the insulating material 250 V
period of stress across
the insulating parts
long
category of resistance to heat and fire
category D (UL94 - V2)
immunity against voltage surges
category 1
type of action and disconnection
1C relay contacts
no. of relay automatic operating cycles
100,000operations
software class and structure
Class A
cleaning the instrument Only use neutral detergents and water.
cable max. lenght probes: 30 m
relay: 10 m
WARNING:
do not run the power cable less than 3 cm from the bottom part of the device or
from the probes; for the connections only use copper wires.
IMPORTANT WARNINGS:
The CAREL product is a state-of-the-art device, whose operation is specified in the technical
documentation supplied with the product or can be downloaded, even prior to purchase,
from the website www.carel.com.
The customer (manufacturer, developer or installer of the final equipment) accepts all liability
and risk relating to the configuration of the product in order to reach the expected results in
relation to the specific final installation and/or equipment. The failure to complete such phase,
which is required/indicated in the user manual, may cause the final product to malfunction;
CAREL accepts no liability in such cases. The customer must use the product only in the manner
described in the documentation relating to the product. The liability of CAREL in relation to its
products is specified in the CAREL general contract conditions, available on the website www.
carel.com and/or by specific agreements with customers.
1 2 3 4 5 6 7 9 10 118
L
L N
230VAC
NTC
PROBES
1 2 3 4 5 6 7 9 10 118
L
L N
230VAC
DEF. T.
NTC
PROBES
Compressor
Compressor
Electrical connections
Disposal of the product
The appliance (or the product) must be disposed
of separately in accordance with the local waste
disposal legislation in force.
Fan
AMB.T.
Light
AMB.T.
Defrost

RC
Table of parameters
parameter Min. Max. Def. UOM
PS password F 0 200 22 -
/C1 Probe 1 calibration F -12.7 12.7 0 °C
/C2 Probe 2 calibration F -12.7 12.7 0 °C
St Control temperature F -50.0 90 4.0 °C
rd Control differential (hysteresis) F 0 19.0 2.0 °C
c0 Comp. and fan start delay
after start-up C 0 100 0 min
d0
Type of defrost (0= heater;
1= hot gas; 2= heater by time;
3= hot gas by time; 4= heater
by time with temp. cont.)
C 0 4 0 -
dI
Interval between two defrosts
C 0 199 8 h
dt End defrost temperature C -50 127 12 °C
dP
Max. or effective defrost duration
C 1 199 30 min
dd Dripping time after defrost C 0 15 2 min
A0 Alarm and fan differential C -20.0 20.0 -2.0 °C
AL
Low temperature alarm threshold/
deviation (AL= -50; alarm disabled)
C -50 150 -50 °C
AH
High temperature alarm threshold/
deviation (AH=150; alarm disabled)
C -50 150 150 °C
Ad
Low and high temperature alarm delay
C 0 199 0 min
F0
Fan management
C 0 1 0 -
F1 Fans shutdown temperature F -50 127 5.0 °C
F2 Fans off when compressor off C 0 1 1 -
F3
Fans off during defrost
0= fan ON; 1= fan OFF
C 0 1 1 -
Fd
Off for post-dripping
C 0 15 0 min
EZY
Select Easy Set
(simplified configuration)
C 0 3 0 -
* F：General parameter, no need password;
* C: Configuration parameter, need password.
EZY =1: Fan control separately
EZY =2: Fan off when door open, fan on when door close
EZY =3: Light on when door open, light off when door close
Table of alarms
Alarm
code
LED Description Parameters
involved
E0 ON probe 1 error= control -
E1 ON probe 2 error= defrost [d0 = 0 / 1]
dOr ON open door alarm
LO ON low temperature alarm [AL] [Ad]
HI ON high temperature alarm [AH] [Ad]
EE ON unit parameter error -
EF ON operating parameter error -
Ed ON defrost ended by timeout [dP] [dt]
Setting the set point (desired temperature)
press SET for 1 s, the set value will start flashing after a few moments;
•
increase or decrease the value using UP or DOWN;
•
press SET to confirm the new value.
•
Switching the device ON/OFF
Press UP for more than 3 s. The control and defrost algorithms are now
disabled and the instrument displays the message “OFF” alternating
with the temperature read by the set probe.
Manual defrost
Press for DOWN more than 3 s (the defrost starts only the temperature
conditions are valid).
Show Temp of probe
Press UP and DOWN together (only for C)
Access and setting type F (frequent) and type C (conguration)parameters
1. press SET for 3 s (the display will show “PS”);
2. • to access the type F and C parameter menu, enter the password “22” using UP/DOWN;
• to access the F parameter menu only, press SET (without entering the password);
scroll inside the parameter menu using UP/DOWN;
To display/set the values of the parameter displayed, press SET, then UP/DOWN and
finally SET to confirm the changes (returning to the parameter menu).
To save all the new values and exit the parameter menu, press SET for 3 s;
To exit the menu without saving the changed values (exit by timeout) do not
press any button for at least 60 s.
Display and functions
During normal operation, the controller displays the value of the probe set
using parameter 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
ON
ON
fan OFF request ON
defrost OFF request ON
AUX aux outputon output off -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
more than 3 s: toggleON/OFF
Pressed
togerther
show temp
of probe
-
more than 3 s: start/
stop defrost
Pressed
together
start para-
meter reset
procedure
for 1 s display
firmware
vers. code
-1 s.: display/set the set point
- more than 3 s:access parameter
setting menu
(enter password ‘22’)
-
for 1 s RESET
current
EZY set
Tab. 2
ON/OFF
Defrost
SET