6
Manual RS8EB102 © Danfoss 09-2005
EKC
319A
Data
Ordering
Type
Function
Code no.
EKC 319A
Temperature controller
084B7251
EKA 173
Data communication module
(accessories), (FTT 10 module)
084B7092
EKA 175
Data communication module
(accessories), (RS 485 modul)
084B7093
Supply voltage
24 V a.c. +/-15% 50/60 Hz, 60 VA
(the supply voltage is galvanically separated from
the input and output signals. Input/output are
not individual galvanic isolated)
Power consumption
Controller
20 W coil for AKV / A
Coil for EVRP
5 VA
55 VA
40 VA
Input signal
Temperature sensor
Pt 1000 ohm / 0°C
Contact function start/stop of regulation
Alarm relay
SPST
AC-1: 4 A (ohmic)
AC-15: 3 A (inductive)
Valve connection
AKV, AKVA or EVRP via 24 a.c. Pulse-Width
Modulating output
Data communication Possible to connect a data communication
module
Environments
0 - 55°C, during operation
-40 - 70°C, during transport
20 - 80% Rh, not condensed
No shock influence / vibrations
Enclosure
IP 20
Weight
300 g
Montage
DIN Rail
Display
LED, 3-digits
Terminals
max. 2.5 mm
2
multicore
Approvals
EU Low Voltage Directive and EMC demands re
CE-marking complied with.
LVD-tested acc. to EN 60730-1 and EN 60730-2-9
EMC-tested acc. to EN50081-1 and EN 50082-2
Temperature sensor ...........................................Kindly refer to catalogue RK0YG
AKV / AKVA Valves ..............................................Kindly refer to catalogue RK0YG
EVRP valves ...........................................................Kindly refer to data sheet RD3KB
Connnections
Necessary connections
Terminals:
25-26 Supply voltage 24 V a.c.
20-21 Signal from temperature sensor
23-24 Solenoid valve type EVRP / expansion valve type AKV or
AKVA
1-2
Switch function for start/stop of regulation. If a switch is
not connected, terminals 1 and 2 must be shortcircuited.
Application dependent connections
Terminal:
12-13 Alarm relay.
There is connection between 12 and 13 in alarm situ-
ations and when the supply voltage to the controller is
interrupted
3-4
Data communication
Mount only, if a data communication module has been
mounted.
It is important that the installation of the data communi-
cation cable be done correctly. Cf. separate literature No.
RC8AC...
