Evco

EV3B21N7

EV3 Series • Refrigeration Controller

Type Refrigeration

Application Bottle Cooler

Probe Inputs 1

Relay Outputs 1

Panel Size 32x74 mm

R1 Compressor

Basic single output controller for simple refrigeration applications

Technical Specifications

Relay Outputs	1
Relay Rating	16A/250VAC

Operating Temp	-5 to 50°C
Storage Temp	-20 to 60°C

Terminal	Function	Type	Wire Color
1	Power L	Input	brown
2	Power N	Input	blue
3	Probe (+)	Input	red
4	Probe (-)	Input	white
5	Relay COM	Output	black
6	Relay NO	Output	black

Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.

Code	Parameter	Range	Default	Description
SP	Setpoint	-40 to 105	5 °C	Temperature setpoint
dF	Differential	0.1 to 20	2 °C	Switching differential
tC	Comp Delay	0 to 15	3 min	Compressor restart delay
CA	Calibration	-10 to 10	0 °C	Probe offset
LS	Low Limit	-40 to SP	-40 °C	Minimum setpoint
HS	High Limit	SP to 105	105 °C	Maximum setpoint