Operating instruction
EC3-P33 Superheat Controller and
ECD-002 Keypad / Display Unit
Installation in non explosive environment
Emerson Climate Technologies GmbH
www.emersonclimate.eu
Am Borsigturm 31 I 13507 Berlin I Germany
Date: 04.05.2017
EC3-P33_OI_ML_R01_865919.docx
E C D - 0 0 2 d i s p l a y / k e y p a d u n i t : ( L E D s a n d b u t t o n f u n c t i o n s )
S e t u p o f m a i n p a r a m e t e r s u s i n g E C D - 0 0 2 :
(need to be checked/modified before start-up)
•
Make sure that digital input is 0 V (open). Turn the power supply ON.
•
Important:
Three main parameters i.e. refrigerant type (u0), pressure sensor type
(uP) and valve type (ut) can be set only when digital input is open (0 V) while the
power supply is ON (24 V). This feature is for added safety to prevent accidental
damage of compressors and other system components.
•
For easy setting of main parameters, follow the pictorial procedure of
“Quick
start-up”
on the attached individual paper.
•
Once the main parameters have been selected/saved the EC3 is ready for
startup. All other parameters can be modified at any time during operation
or standby if it is necessary.
P r o c e d u r e f o r p a r a m e t e r s m o d i f i c a t i o n u s i n g E C D - 0 0 2 :
•
The parameters can be accessed via the 4-button keypad. The configuration
parameters are protected by a numerical password. The default password is “12”.
To select the parameter configuration:
•
Press the
PRG
button for more than 5 seconds. A flashing “0” is displayed
•
Press
or
until “12” is displayed; (password)
•
Press
SEL
to confirm password
•
Press
or
to show the code of the parameter that has to be changed;
•
Press
SEL
to display the selected parameter value;
•
Press
or
to increase or decrease the value;
•
Press
SEL
to temporarily confirm the new value and display its code;
•
Repeat the procedure from the beginning "press
or
to show..."
•
To exit and save the new settings
: Press
PRG
to confirm the new values and exit
the parameters modification procedure.
•
To exit without modifying any parameters:
Do not press any button for at least
60 seconds (TIME OUT).
R e s e t a l l p a r a m e t e r s t o f a c t o r y s e t t i n g :
•
Make sure that digital input is 0 V (open).
•
Press
and
together for more than 5 seconds. A flashing “0” is displayed.
•
Press
or
until the password is displayed (Factory setting = 12).
If password was changed, select the new password.
•
Press
SEL
to confirm password
“0” is displayed.
•
Press
SEL
to reset all parameters to factory setting
•
Press
PRG
to activate the function and leave the special function mode.
C o n t r o l ( v a l v e ) s t a r t - u p b e h a v i o r : ( P a r a m e t e r u u a n d u 9 )
EX4/5/6-…FLR
≤ 1.5 seconds
EX7-…FLR
≤ 3.2 seconds
M a i n p a r a m e t e r s :
(must be checked and modified if necessary)
Code Parameter description and choices
Min
Max
Factory
setting
Field
setting
H5 Password
1
199
12
u0 System refrigerant
0
6
0
0 = R290;
1 = R32;
2 = R1234ze;
3 = R1234yf; 4 = R1270;
5 = R227;
6 = R600a
uP Installed pressure sensor type
PT5-30L-FLR
ut
Installed valve type
0
3
1
0=EX4-…FLR;
1=EX5-…FLR;
2=EX6-…FLR;
3=EX7-…FLR
O p t i o n a l p a r a m e t e r s :
(recommended factory setting for majority of applications)
After selecting the parameters the EC3-P33 is fully functional without
keypad/display unit. ECD-002 may be removed or connected at any time.
Code Parameter description and choices
Min
Max
Factory
setting
Field
setting
uu Start valve opening (%)
5
100
10
u9 Start opening duration (second)
1
120
5
uL Low superheat alarm function
0
2
1
0 = disable (for flooded evaporator)
1 = enable auto reset
2 = enable manual reset
Cut-out at 0.5K (if it maintains 1 min.); Cut-in immediately at 3K
u5 Superheat set-point (K)
If uL enabled (auto or manual)
If uL disabled
3
0.5
30
30
6
6
u2 MOP function
0
1
1
0 = disable
1 = enable
u3 MOP set-point (°C) saturation temperature
*
*
X
Factory setting is according to selected refrigerant (u0):
+13°C for R290
+15°C for R32
+15°C for R1234ze
+15°C for R1234yf
+13°C for R1270
+15°C for R227
+15°C for R600a
┌┘
5 Units conversion (only for u3, u5,
┌┘
1)
0
1
0
0 = °C, K, bar
1 = °F, R, psig
(Psig values are divided by 10. Example: Display 12.5 is 125 psig)
┌┘
1 Value to show
0
4
0
0 = Measuredsuperheat (K)
1 = Measured evaporating pressure, (bar);
2 = Valve opening (%)
3 = Measured coil-out temperature (°C)
4 = Calculated evaporating temperature (°C) from the pressure
u4 Superheat control mode
0
1
0
0 = Standard,
1 = Slow
b1 Battery error management, when battery is
defective, see below
0
3
2
value
Alarm
display
Alarm relay
Valve
Reset possibility after
recovery/replacement
0
-
-
Regulating
-
1
Ab
-
Regulating
-
2
Ab
Signalling
Fully close
Auto
3
Ab
(blinking)
Signalling
Fully close
Manual
When setting b1 to option 0 or 1, the user must ensure appropriate safety
precautions are in place to protect the system against damage caused by
a power failure.
!
Blinking:
valve is closing
ON:
valve is fully close
Blinking:
valve is opening
ON:
valve is fully open
ON
: demand
OFF
: no demand
ON
: alarm
OFF
: no alarm
Parameters setting/saving
Selecting/confirming
Next parameter/
value (higher)
Next parameter/
value (lower)
Prg&Sel (5 sec)
Manual reset for
blinking alarm codes
Sec.
uu
u9
%
E
C
3-
X
3 B
A
.c
dr
