Emerson ECD-002, EC3-P33 Operating Instructions Manual
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
General information:
EC3-P33 is the superheat controller for systems with flammable refrigerants
(A2L/A3) and able to drive EMERSON Valves EX4-7-…FLR via M12 Conn ector
ECV05A.
Note: This document contains short form instructions for experienced users.
Warning:
• EC3-P33 has a potential ignition source and does not comply with ATEX
requirements. Installation only in non-explosive environment.
• EX4-7…FL R are currently released for R29 0 in term of compat ibility. The
other listed refrigerants are subject to qualification at later stage. No
warranty or product liability if EX4-7…FLR to be used with other
refrigerants stored in software of EC3-P33.
Safety instruc tions:
• Read operatin g instru ctions th oroughl y. Failu re to comp ly can result i n device
failure, system damage or personal injury.
• According to EN 13313 it is intended for use by persons having the
appropriate knowledge and skill.
• Ensure that the system is correctly labeled with applied refrigerant type and
a warning for ex p losion risk.
• Do not exceed the specified maximum ratings for temperature (max.+60°C),
voltage and current.
• Before installation or service disconnect all voltages from system and device.
• Do not operate system before all cable connections are completed.
• Entire electrical connections have to comp ly wit h l o cal regulati on s .
Note: The E C3-P33 series contains a VRLA battery = valve regulated rechargeable
lead-acid battery. The batte ry m ust NOT be dis posed of w ith othe r comme rcia l was te.
Instead, it is the use r’s re sponsi bility to pass it to a des igna te d co ll e ctio n po i nt fo r t he
safe recycling of batteries (harmonized directive 2012/19/EU). For further
information contact your local environmental recycling center.
Mounting position:
The EC3-P33 is designed to be mounted onto a standard DIN rail. Mounting position:
on vertical walls, with stepper motor connector on top side only.
Mounting of ECD-002:
• ECD-002 can be installed at any time also during operation.
• ECD-002 can be mounted in panels with
71x29 mm cutout.
• Push controller into panel cut-out.(1)
• Make sure that mounting lugs are flush with
outside of controller h ousing
• Insert Allen key into front panel holes and turn
clockwise. Mounting lugs will turn and gradually
move towards panel (2)
•
Turn Allen key until mounting lug barely touches
panel. Then move ot her mounting lug to the same
position (3)
• Tighten both sides very carefully until keypad is
secured. Do not over tighten as mounting lugs
will break easily.
Electrical Installation:
• Refer to the electrical wiring diagram for electrical connections.
• Do not apply voltage to the controller before completion of wiring.
• Ground the metal housing with a 6.3 mm spade connector.
• Keep controller and sensor wiring well separated from mains wiring.
Minimum recommended distance 30 mm!
• Ensure that cables are not mounted near sharp edges.
• Use a class II category transformer for 24 VAC power supply. Do not ground the
24 VAC lines. We recommend using individual transformers for EC3 controller(s)
and for 3
rd
party controllers t o avoid poss ible in terference or grounding problems
in the power supply.
• Connecting any EC3 inputs to mains voltage will permanen tly damage the EC3.
• The use of the relay is essential to protect the system in case of power failure if the
communications interface or the ECD-002 are not utilized.
• If the output relay is not utilized, the user must ensure appropriate safety pre-
cautions are in place to protect the system against damage caused by a power
failure.
• In order to provide system protection in the event of power loss, it is recommended
to change the battery annually.
Digital input status is dependent to operation of compressor/th ermostat
Commander
Operating condition
Digital input (I)
Compressor
Compressor starts
Closed / 24 V (Start)
Compressor stops
Open / 0 V (Stop)
Thermostat
Demand (compressor must be ON)
Closed / 24 V (Start)
No demand
Open / 0 V (Stop)
Wiring:
v
2: White wire 4: Black wire 3: Blue wire 1: Brown wire
G: Remote control panel, system controller
H: Alarm relay, dry contact. Relay coil is not energized at alarm or power off.
I: Digital input (0V/open = Stop; 24 V/closed = Start)
J: Transformer Class II, 24 VAC secondary / 25 VA
K: Third party controller (can use the analog output signal from EC3)
Preparation for Start-up:
• Vacuum the en tire refrigeration system
• Note: EX4-7-…FLR are d elivered at half op en position. Do not ch arge system
before closur e of valve.
• Apply suppl y voltage 24 V to EC3 while the dig ital 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.
!
Non-explosiv
environment
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
ECD-002 display/keypad unit: (LE Ds and button functio ns)
Setup of main para meters u sing ECD-002:
(need to be checked/modified before start-up)
• Make sure that digi tal input is 0 V (open). Turn the power supply ON.
• Important: Three ma in pa r am et ers i.e. r efri g era n t t yp e (u0 ) , p ress u re s en sor t ype
(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 i s for added safet y to p revent acc iden tal
damage of compressors and other system components.
• For easy sett ing of main parameters, fo llow the pictorial pr ocedure of “Quick
start-up” on the attached individual p a pe r.
• 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.
Procedure for parameters modification using ECD-002:
• 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” i s displaye d
• Press or until “12” is displayed; (password)
• Press SEL to confirm password
• Press or to show the code of the param eter that has to b e changed;
• Press SEL to display the selected param eter value;
• Press or to increas e o r 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: P
ress 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).
Reset all parameters to factory setting:
• Make sure that digi tal input is 0 V (open).
• Press and together for more than 5 seconds. A fl a sh ing “ 0 ” i s di splayed.
• Press or until the passw o rd 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 activat e the function and leave the special function mod e.
Control (valve) start-up behavior: (Parameter uu and u9)
EX4/5/6-…FLR ≤ 1.5 seconds
EX7-…FLR ≤ 3.2 seconds
Main parameters:
(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
Optional paramete rs:
(recomm e n d ed factory setting fo r majority of app l i c at ions)
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 aut o 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 temper atur e
* * X
Factory setting is ac cording to selected refrigerant (u0):
+13°C for R290 +15 °C for R32
+15°C for R1234ze +15°C for R1234 yf
+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 mod e
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 c
aused 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 param eter/
value (higher)
Next param eter/
value (lower)
Prg&Sel (5 sec)
Manual reset f o r
blinking alarm codes
Sec.
uu
u9
%
EC3-X3 BA.cdr
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
Error/Alarm handling:
Alarm code Description
Related
parameter
Alarm
relay
Valve What to do?
Requires manual
reset after resolvin g
alarm
E0
Pressure
transmitter error
- Signalling Fully close Check wiring connection and measure the signal 4…20 mA No
E1
Temperature
sensor error
- Signalling Fully close Check wiring connection and measur e the resistance of sensor No
AΠ
EXV electrical
connection error
- Signalling - Check wiring connection and measure the resistance of winding No
AL
Low superheat
(<0,5K)
uL: 1
Signalling
Fully close
Check wiring connect ion and operation of valve
No
AL blinking
uL: 2
Signalling
Fully close
Yes
Ab
Battery error
b1: 1 - Regulating
Battery potentia lly does not have enough charge to close valve in
case of main power supply interruption. May occur temporarily with
new controllers or after lon g s torage but should disap pear when
battery is charged sufficiently. If Ab remains active even when
battery is c harged, battery may be defective and should be replaced.
(Replacement kit: 807790).
-
Ab
b1: 2 Signalling Fully close -
Ab blinking
b1: 3 Signalling Fully close Yes
Er
Data error display
- out of range
- - -
Data send to the display is out of range. Check temperature and
pressure sensor.
No
---
No data to display
- - -
Check Cable and plug connection between EC3-X33 and ECD-002.
No
Note: When multiple alarms occ ur , the highest prio r ity alarm is displ a yed until being cleared, then the next highest a l ar m is displayed until all alarms are cleared. Only then
will parameters be shown again.
Checking system ope rating conditions:
The data to be permanently shown on the display can be selected by the user
(parameter ┌┘1). It is possible to temporarily display other values. However this
function is not avail a bl e in an ala r m condition. The dis play wil l s how for one s econd
the numerical identifier of the data (see ┌┘1 parameter) and then the selected data.
After 5 minutes, the display will return to the value selected by parameter┌┘1.
Service / Troubleshooting:
Symptom Cause Action
Operating superheat is several degrees higher or lower
than set-point
Incorrect signal from pressure or
temperature sensors
1- Check the sensors
2- Make sure EC N -N6 0 temperature sensor is used
3- For optimum accuracy, please use: PT5-30L-FLR
4- Make sure the s ensor cables are not installed along with other
high voltage cables
Operating superhea t is too low i.e. compressor wet
running
1- Incorrect wiring of ECV05A
2- Defective sensors
1- Check the wiring
2- Check the sensor
Valve is not full y clo sed
1- The digital input is ON (24 V)
2- Wrong setting of paramet er ut.
1- Valve is shut off only when the digital input is turned off (0 V)
2- Check the set t ing of paramet er ut
Instable superheat (hunting)
Evaporator is designed to operate at
higher superheat
Increase th e superheat set-point
Valve opens when EC3 commands to close and vice versa
Wrong wiring between EC3-P33 and
valve
Correct the wiring
Superheat set-point is shifting after severa l m onths of
uninterrupted op eration or permanent jumper of 24 V
digital input
Stepper motor driven valves require
synchronization
Do not apply permanent 24V digital input. Interrupt digital input
once every week for 5 seconds if compressor never stops.
Technical data Dimensions [mm]:
Power supply
24 VAC ±10%; 50/60 Hz; 1 A
EC3-P3
3
Power consumption
25 VA max.
including EX4-7-…FLR.
Plug-in connector
Removable screw terminals wire size 0.14…1.5 mm2
Grounding
6.3 mm spade earth connector
Protection class
IP20 Connection to ECD-002
ECC-Nxx or CAT5 cable with RJ45 connectors
Digital Inputs
0/24VAC/DC for stop/start function
NTC input
EMERSON temperature sensor ECN-N60
4…20 mA Analog input EMERSON PT5-30L-FLR Pressure Tran smitter
4-20 mA Analog output
Deviation from input
signal
For connection to any 3rd party controller with
12/24 VDC power suppl y and appropria te burden
±8% max
ECD-002
Output alarm relay
SPDT contacts 24 VAC/DC, 2 Amp inductive load
Activated:
During normal operation (no alarm condition)
Deactivated:
During alarm condition or power supply is OFF
Stepper motor output for
EX4-7
Maximum cur r ent 0.8 A with nominal 24 VDC
operating voltage
Ambient temperature
range
0…+60°C
+1…+25°C (for best battery life t ime)
> 35°C battery life time < 2 years
Marking
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