Operating instruction
EC3-D7x Digital Superheat Controller
EC3-D72 with TCP/IP communication capability
Emerson Climate Technologies GmbH
www.emersonclimate.eu
Am Borsigturm 31 I 13507 Berlin I Germany
Date: 18.07.2017
EC3-D7x_OI_ML_R06_865019.docx
P r e p a r a t i o n f o r S t a r t - u p :
•
Vacuum the entire refrigeration system.
•
Note:
EMERSON Electrical Control Valves EX4-6 are delivered at half open
position. Do not charge system before closure of valve.
•
Apply supply voltage 24 V to EC3 while the digital input is 0 V (open). The valve
will be driven to close position.
•
After closure of valve, start to charge the system with refrigerant.
•
Start the system and check the superheat and operating conditions.
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 )
P r o c e d u r e f o r p a r a m e t e r m o d i f i c a t i o n u s i n g E C D - 0 0 2 :
•
Note:
Some of the functions/parameters (manual control and TCP/IP
configuration) cannot be modified when using ECD-002 comparing to a set-up by
PC via TCP/IP.
•
Warning:
All alarms are disabled during manual control. We do not recommend
unattended operation of system during manual control.
•
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 must 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).
S p e c i a l F u n c t i o n s :
The Special Functions can be activated by:
•
Press
and
together for more than 5 seconds, a flashing “0” is displayed.
•
Press
or
until the password is displayed (default = “12”).
If password was changed, select the new password.
•
Press
SEL
to confirm password
A “0” is displayed and the Special Function mode is activated.
•
Press
or
to select the function. The number of special functions is dynamic
and controller dependent. See list below.
0:
Reset controller to factory settings (this action is possible only when
digital input is 0 V i.e. open).
1:
Displays the current TCP/IP address.
2:
Assign temporary 192.168.1.101 as TCP/IP address if EC3-D72x has
different address.
•
Press
SEL
to activate the function without leaving the special function mode.
•
Press
PRG
to activate the function and leave the special function mode.
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
15
1
0 = R22
1 = R134a
2 = R507 3 = R404A 4 = R407C
5 = R410A
6 = R124 7 = R744 (subcritical application)
8 = R407A
9 = R407F
10 = R32
*
11 = R448A
12 = R449A
13 = R450A
14 = R513A
15 = R1234ze
uP Installed pressure sensor type
0
2
0
0 = PT5-07x (for R22 / R134a / R507 / R404A / R407A / R407C /
R407F / R124 / R448A /R449A / R450A / R513A /
R1234ze)
1 = PT5-18x (for R410A/ R32)
2 = PT5-30x (for R410A / R744 / R32)
ut
Installed valve type
1
3
2
1 = EX4
2 = EX5
3 = EX6
uu Start valve opening (%)
10
100
50
u9 Start opening duration (second)
1
30
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
*
*
**
**) Factory setting is according to selected refrigerant (u0):
+13°C - R22
+15°C - R134a
+7°C - R507
+7°C - R404A
+15°C - R407C
+15°C - R410A
+50°C - R124
-5°C - R744
+10°C - R407A
+10°C - R407F
+10°C - R32
+12°C - R448A
+12°C - R449A
+19°C - R450A
+13°C - R513A
+24°C - R1234ze
*) Min. and Max. setting values are dependent to selected type of
refrigerant
┌┘
5 Units conversion
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
5
0
0 = Measured superheat (K) 1 = Measured evaporating pressure, (bar);
2 = Valve opening (%)
3 = Measured coil-out temperature (°C)
4 = Calculated evaporating temperature (°C) from the pressure
5 = Compressor capacity in %
u4 Superheat control mode
0
1
0
0 = Standard, 1 = Slow,
uH High superheat alarm function
0 = disable, 1 = enable auto reset
1
uA High superheat alarm setpoint
16
40
30
ud High superheat alarm delay, min.
1
15
3
P2 Freeze protection cut-out, °C
-40
40
0
P3 Freeze protection cut-in, °C
-37
43
3
P4 Freeze protection alarm function
0 = disable, 1 = enable auto-reset,
2 = enable manual reset)
0
2
0
P5 Freeze protection alarm delay, sec.
5
199
30
P6 Pump-down function
(0 = disable, 1 = enable auto-reset)
0
1
0
P7 Pump-down cut-out, barg
-0,5
18
0.5
P8 Pump-down time delay, sec.
0
199
30
P9 Low pressure alarm function
(0 = disable, 1 = enable auto-reset,
2 = enable manual reset)
0
2
0
PA Low pressure alarm cut-out, barg
-0,8 17,7
0
Pb Low pressure alarm delay, sec.
5
199
5
Pd Low pressure alarm cut-in, barg
-0,5
18
0.3
L2 Output logic
0
3
1
0: Alarm = normal, pump down. = normal
1: Alarm = inverse, pump down. = normal
2: Alarm = normal, pump down. = inverse
3: Alarm = inverse, pump down. = inverse
Blinking:
valve is closing
ON:
valve is fully close
Blinking:
valve is opening
ON:
valve is fully open
ON
: demand
OFF
: no demand
Blinking
: pump
down
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
