WURM CRC-BL - User Manual

Cold location controller for top-hat rail installation with enhanced operating modes for 4 cold locations
CRC-BL_V2.1.0_PI_2019-11_EN 1
Subject to technical changes
CRC-BL
1 CRC-BL
Cold location controller for top-hat rail installation with enhanced operating modes
for 4 cold locations
1.1 Front view
Fig. 1: Front view
1.2 Features
• Suitable for max. 4 cold locations
• Basic functional sequences and parameters preprogrammed through selection of cold location
type
• Intelligent fan control, compressor oscillation protection, fan delay
• Thermal fan control and draining time after defrosting
• Suitable for electric defrost, forced air defrost, hot gas defrost and cool gas defrost
• Defrost control by real-time clock with power reserve
• Simple defrost synchronisation of multiple controllers (master-slave)
• 6 defrost times via integrated weekly timer
• Digital inputs for setpoint switchover, manual defrost initiation and door contact
• Option to select 3-point control
• Weighting of the control sensor for day operation and night operation can be set separately
• Support for higher baud rates on the C-BUS
• Possible blocking to prevent parameter adjustment
• Plain text designation for each parameter on the display, language selectable
• Unique parameter identification with Quicklinks
• One-finger operation
• Plug-in screw terminals
• Large data memory for temperature list
• Connection to the Wurm system through a Wurm CAN communication bus (C-BUS) and
FRIGODATA XP

WURM CRC-BL Specifications

General

Brand	WURM
Model	CRC-BL
Category	Controller
Language	English

Summary

CRC-BL Controller Overview

Front View of CRC-BL

Visual identification of the controller's front panel, including display and controls.

CRC-BL Key Features

Lists primary functionalities like intelligent fan control, defrost options, and connectivity.

Safety Instructions and Warnings

Manual Writing Conventions

Explains hazard symbols and warning conventions used in the documentation.

General Safety Precautions

Provides essential safety advice for operation, handling, and liability.

Electrical Shock and Fire Hazards

Details critical warnings regarding electrical hazards during installation and operation.

Electromagnetic Interference Warning

Warns about potential faults from EMI and methods to prevent them.

Connection and Installation

CRC-BL Connection Diagram

Illustrates the wiring connections for the controller's interfaces and inputs/outputs.

Installing the CRC-BL Device

Step-by-step guide for mounting the controller onto a top-hat rail.

CRC-BL Technical Data

Provides detailed specifications including power, display, communication, and environmental limits.