Emerson/Alco
DOC-212
DOC Series • Refrigeration Controller
Quick Info
Type
Refrigeration
Application
Cold Room
Probe Inputs
2
Relay Outputs
3
Panel Size
32x74 mm
Output Functions
R1
Compressor
R2
Defrost
R3
Fan
Legacy three-relay controller - DISCONTINUED
Technical Specifications
Display & Interface
| Display Type | LED |
| Display Digits | 3 |
| Buttons | 4 |
| LED Indicators | Compressor, Defrost, Fan |
Power Supply
| Voltage | 230V AC |
| Voltage Range | 220-240V AC |
| Frequency | 50Hz |
| Power Consumption | 4VA |
Sensor Inputs
| Probe Inputs | 2 |
| Probe Type | NTC 10K |
| Temp Range | -50 to 80°C |
| Accuracy | ±1°C |
Relay Outputs
| Relay Outputs | 3 |
| Relay Rating | 8A/250VAC |
Physical
| Panel Size | 32x74 mm |
| Depth | 60 mm |
| IP Rating | IP65 (front) |
| Weight | 95 g |
Operating Conditions
| Operating Temp | -5 to 50°C |
| Storage Temp | -20 to 60°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| 1-2 | Power 230VAC | Input |
brown/blue
|
| 3-4 | Probe 1 | Input |
yellow/white
|
| 5-6 | Probe 2 | Input |
green/white
|
| 7-8 | Compressor | Output |
black
|
| 9-10 | Defrost | Output |
red
|
| 11-12 | Fan | Output |
blue
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| SP | Setpoint | -50 to 50 | -18 °C | Temperature setpoint |
| dF | Differential | 1 to 10 | 2 °C | Switching differential |
| dI | Defrost Interval | 1 to 48 | 8 hr | Defrost interval |
| dL | Defrost Duration | 5 to 60 | 30 min | Max defrost time |
Error Codes
E1
Probe 1 error
Solution: Check room probe
E2
Probe 2 error
Solution: Check evap probe
Frequently Asked Questions
Use EC3-X32 as direct replacement with enhanced features
Alternative Models (Cross Reference)
Emerson EC3-X32
Dixell XR40CX
Manufacturer Information
Brand: Emerson/Alco
Country: USA
Parent: Copeland (Emerson Climate Technologies)