Operating instructions

EC3 Series
Coldroom Controllers
D A T A S H E E T
EC3-3_35041_EN_R13.docx 7 / 8 23.02.2012
Technical Data
EC3 Series Controller ECD-001 Display Unit
Supply voltage 24VAC ±10%, 50/60Hz Class II only
6.3mm spade earth connector
Supply From EC3 Series Controller via
connecting cable
Power consumption 25VA max. including EX4 … EX7
28VA max. including EX8
LED indicators Compressor, Fan, Defrost, Alarm,
LON-Service pin, IR status
Plug-in connector size Removable screw version
wire size 0.14 … 1.5mm
2
Display LED Numeric segmental display, 2½-di
gits,
red, with automatic decimal point
betw. ±19.9, switchable between °C
and °F
Communication
TCP/IP Ethernet (EC3-332)
LON
®
FTT-10 (EC3-331)
Connecting cable ECC-Nxx cables or standard CAT5
patch cord with RJ45 connectors
Temperature
storage
operating
-20 … +65°C
0 … +60°C
1….+25°C for optimum battery life
Temperature
storage
operating
-20 … +65°C
0 … +60°C
Humidity 0 … 80% r.h. non condensing Humidity 0 … 80% r.h. non condensing
Protection class IP20 Protection class IP 65 (front protection with gasket)
Weight ~ 800g Weight ~ 52g
Mounting DIN rail mounted Mounting Panel mount (71 x 29 mm cutout)
Input and Output Configuration EC3-33x Controller
Description I/O Specification
Temperature inputs (3)
10kΩ @ 25 °C,
-50 … 50 °C
Coil out temperature, Air temperature,
Defrost termination
Pressure transmitter input 24VDC, 4 … 20mA Evaporating pressure
Analog output (evaporating
pressure feed-through signal)
Deviation from input signal
4 … 20mA
Requires 12 or 24 VDC
±8% max
Evaporating pressure
Digital inputs (2) 24VAC/DC Compressor Safety, Door contact
Output relays (4) SPDT contacts, AgNi
Inductive (AC15) 250V / 2A,
Resistive (AC1) 250V / 8A
Compressor
Alarm
SPST contacts, AgNi
Inductive (AC15) 250V / 2A,
Resistive (AC1) 250V / 6A
Heater
Fan
Stepper motor output For EX4 … EX8 Electrical Control Valves
Communications RJ45 10MBit/sec. Ethernet or LON
®
FTT10