ENG
“EVD Evolution TWIN” +0300006EN - rel. 2.6 - 31.01.2019
60
13. APPENDIX 2: EVD EVOLUTION SINGLE
Setting the “Enable single mode on twin” parameter, EVD Evolution twin
eectively becomes an EVD Evolution with single driver and manages valve A
only. In addition, it acquires the main control functions that require more than
two probes, such as superheat control with brushless DC compressor (BLDC),
superheat control with two temperature probes and all the auxiliary control
functions. The following explanations are available in manual +0300005EN;
refer to this manual for a complete description.
13.1 Enable single mode on twin
Parameter to be set at the end of the commissioning procedure.
Parameter/Description Def Min Max UoM
SPECIAL
Enable single mode on twin 0 0 1 -
0 = Twin; 1 = Single
Tab. 13.a
13.2 User interface – LED card
The Open B/Close B LEDs ash.
VBAT
G0
G
E
X
V connectionPower Suppl
6
13
14
7
15
5
CAREL E
X
V
VALVE A
EVD evolution
twin
Fig. 13.b
Key:
1 green
2 yellow
3 brown
4 white
5 personal computer for conguration
6 USB/tLAN converter
7 adapter
8 ratiometric pressure transducer - evaporation pressure
9 NTC suction temperature
10 digital input 1 congured to enable control
11 free contact (up to 230 Vac)
12 solenoid valve
13 alarm signal
Note:
• connect the valve cable shield to the electrical panel earth;
• the use of the driver for the superheat control requires the use of the
evaporation pressure probe S1 and the suction temperature probe S2,
which will be tted after the evaporator, and digital input 1/2 to enable
control. As an alternative to digital input 1/2, control can be enabled via
remote signal (tLAN, pLAN, RS485). For the positioning of the probes
relating to other applications, see the chapter on “Control”;
• inputs S1, S2 are programmable and the connection to the terminals
depends on the setting of the parameters. See the chapters on
“Commissioning” and “Functions”;
• pressure probe S1 in the diagram is ratiometric. See the general connection
diagram for the other electronic probes, 4 to 20 mA or combined;
• four probes are needed for superheat control with BLDC compressors, two
to measure the superheat and two to measure the discharge superheat
and the discharge temperature.
13.4 Parameters enabled/disabled for control
The following parameters are made available in this mode. Probe S3 is no
longer settable as an external 4 to 20 mA signal.
Parameter/Description Def. / UoM
CONFIGURATION
Main control
…
19 =air-conditioner/chiller with BLDC compressor
20 = superheat control with 2 temperature probes
Multiplexed
showcase/
cold room
Auxiliary control
1 = Disabled
2 = High condensing temperature protection on S3
3 = Modulating thermostat on S4
4 = Backup probes on S3 and S4
5, 6, 7= reserved
8 = Subcooling measurement
9 = Reverse high condensing temperature protection on S3
Disabled
Probe S3
…
20 = external signal (4 to 20 mA) (CANNOT BE SELECTED)
Ratiometric:
-1 to 9.3 barg
Variable 1/2 on the display
…
11 = Modulating thermostat temperature
Superheat
S1 probe alarm management
…
Use backup probe S3
Valve in xed
position
S2 probe alarm management
…
Use backup probe S4
Valve in xed
position
Auxiliary refrigerant
0 = same as main control;
1= R22 2= R134a 3= R404A
4= R407C 5= R410A 6= R507A
7= R290 8= R600 9= R600a
10= R717 11= R744 12= R728
13= R1270 14= R417A 15= R422D
16= R413A 17= R422A 18= R423A
19= R407A 20= R427A 21= R245FA
22= R407F
23=R32 24=HTR01
25= HTR02
26=R23 27 = R1234yf
28 = R1234ze 29 = R455A 30 = R170
31 = R442A 32 = R447A 33 = R448A
34 = R449A 35 = R450A 36 = R452A
37 = R508B 38 = R452B 39 = R513A
40 = R454B 41 = R458A
0
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