Carel EVD ice User Manual

12
ENG
“EVD ice” +0300038EN - rel. 1.1 - 23.04.2018
4. COMMISSIONING
Important: if the refrigerant is not available among the refrigerant
parameter options, contact CAREL service to:
1. conrm that the system: (c.pCO/Ultracella,...)+ EVD ice + CAREL electronic
expansion valve is compatible with the desired refrigerant (Gas
type=custom);
2. identify the values that dene the custom refrigerant and enter them for
parameters: “Dew a…f high/low” . See the variables accessible via
serial connection.
4.1 Commissioning procedure
Once the electrical connections have been completed (see the chapter
“Installation”) and the power supply has been connected, the operations
required for commissioning the driver depend on the type of interface
used, however essentially involve setting just 3 parameters: refrigerant,
functioning mode, superheat setpoint.
Important:
• until the commissioning procedure has been completed, control
will not be active;
• (only during commissioning) changing the gas involves changing
the value of the ratiometric probe parameter.
After powering up the driver, the display lights and the driver waits the
control parameters, indicated by the hyphens. The default parameters
are:
1. Refrigerant = R404A;
2. Type of control = multiplexed showcase/cold room
3. Superheat set point = 11 K.
Procedure:
GAS Type
Mode
Super Heat
1. The controller displays the bar at the top: refrigerant (GAS Type);
GAS Type
Mode
Super Heat
2. Press PRG/Set: the refrigerant setting is shown = 3: R404A
GAS Type
Mode
Super Heat
3. Press UP/Down to change the value
GAS Type
Mode
Super Heat
4. Press PRG/Set to save and return to the refrigerant parameter code
(bar at the top)
GAS Type
Mode
Super Heat
5. Press Down to move to the next parameter: Mode, indicated by the
bar in the middle;
6. Repeat steps 2,3,4,5, to set the values of the other parameters: Mode,
Superheat set point;
GAS Type
Mode
Super Heat
7. Press PRG/Set for 2 seconds to exit the commissioning procedure
and start control. The standard display is shown.
4.2 Parameters rst conguration
Important: ONLY DURING commissioning, changing the gas
involves changing the value of the ratiometric probe parameter; if not
specied in the table, the type of ratiometric probe is -1...9.3 barg.
Parameter/ description Def.
Gas Type = refrigerant
0 Custom
1 R22 15 R422D 28 R1234ze(-1...4.2 barg)
2 R134a 16 R413A 29 R455A (-1...12.8 barg)
3 R404A 17 R422A 30 R170 (0...17.3 barg)
4 R407C 18 R423A 31 R442A (-1...12.8 barg)
5 R410A 19 R407A 32 R447A (-1...12.8 barg)
6 R507A 20 R427A 33 R448A
7 R290 21 R245FA 34 R449A
8 R600(-1...4.2 barg) 22 R407F 35 R450A (-1...4.2 barg)
9 R600a (-1...4.2 barg) 23 R32 (0...17.3 barg) 36 R452A (-1...12.8 barg)
10 R717 24 HTR01 37 R508B (-1...4.2 barg)
11 R744 (0...45 barg) 25 HTR02 38 R452B
12 R728 26 R23 39 R513A (-1...4.2 barg)
13 R1270 27 R1234yf 40 R454B
14 R417A 41 R458A
3 =
R404A
Tab. 4.a
Note: if the refrigerant is not available among the refrigerant
options, “GAS Type=refrigerant”:
1. set any refrigerant (for example R404);
2. select the type of operating mode (Mode), the superheat set point
and complete the commissioning procedure;
3. use the VPM program (Visual Parameter Manager, see the chapter
“Network connection” ) and set the refrigerant type “0= Custom” and
the parameters “Dew a...f high/low” which dene the refrigerant (see
variables accessible via serial connection);
4. start control, for example by closing the digital input contact to
enable operation.
Mode = operating mode
1 Multiplexed cabinet/cold room
2 Air-conditioner/chiller with plate heat exchanger
3 Air-conditioner/chiller with tube bundle heat exchanger
4 Air-conditioner/chiller with nned coil heat exchanger
5 Reserved
6 Reserved
7 Cabinet/cold room with subcritical (R744) CO2
1 = Mul-
tiplexed
cabinet/
cold room
Superheat setpoint 11 K(20°F)
Tab. 4.b
Note: consider the unit of measure (°C/°F) when setting the
superheat setpoint (Si parameter).

Carel EVD ice Specifications

General

Brand	Carel
Model	EVD ice
Category	Control Unit
Language	English