Technische Alternative ESR31-D User Manual

ESR 31
Version 2.0 EN
Simple solar control unit
Operation
Installation instructions
en

Technische Alternative ESR31-D Specifications

General

Brand	Technische Alternative
Model	ESR31-D
Category	Control Unit
Language	English

Summary

Safety Requirements

Maintenance

General care and upkeep of the device, noting no adjustments are possible.

Generally Applicable Rules for Correct Use

Outlines rules and precautions for system damage prevention and correct operation.

Stagnation- Solar Thermal Systems

Discusses system standstill conditions and potential issues like overheating and expansion.

Hydraulic Diagrams

Program 0 – 2 - Solar Thermal System

Explains settings and operation for solar thermal systems and pump control.

Program 4 – 7 - Loading Pump Control

Details settings for loading pump control and burner requirement functions.

Program 8, 9 - Air Flap Control for Earth Collector

Describes air flap control logic for earth collectors based on temperature thresholds.

Program 12 - Burner Requirement using Holding Circuit

Outlines burner control logic using a holding circuit for pellet or fuel boilers.

Program 16, 17 Preparation of Hot Water

Details hot water preparation modes, including settings for sensors and flow switches.

Operation

The Main Level

Describes the primary display interface, navigation, and common display elements.

Changing a Value (Parameter)

The Parameter Menu PAR

Software Version VR / VD

Identifies device version and its significance for technical queries.

Program Number PR

Explains how to select the correct program for the solar thermal system.

Set Values (min, max, diff)

Details the parameters for setting temperature thresholds and differentials for control logic.

Automatic / Manual Mode

O AUTO

Explains automatic mode for output switching based on program diagrams.

C AUTO

Describes automatic mode for control output voltage based on COP menu settings.

The Menu MEN

Brief Description

Provides an overview of menu items like language, sensor type, and system functions.

Sensor Settings

Sensor Type

Creating a Mean (Average) AV

System Protection Functions SYS PF

Collector Excess Temperature CET

Collector Anti-freeze FROST

Start Function STARTF (Ideal for Tube Collectors)

After-running Time ART

Pump Speed Control PSC (Only ESR31-D)

Absolute Value Control

Differential Control

Event Control

Waveform

Discusses waveform characteristics for circulating pumps with standard motor dimensions.

Stability Problems

Pump Standstill

Control Commands

Outlines commands for testing the system and monitoring current pump speed.

Control Output COP 0-10 V / PWM

OP

Function Check F CHCK

Heat Quantity Counter HQC

Tips on Accuracy

"Step by Step" Setting of the Heat Quantity Counter

VSG (Pulse Encoder)

Guides through the step-by-step configuration for using a pulse encoder for heat quantity calculation.

FTS....DL

Provides step-by-step instructions for configuring the heat quantity counter with an FTS....DL external sensor.

No Volume Flow Encoder

Details the steps for setting up the heat quantity counter without a volume flow encoder, using a fixed flow rate.

External Sensors EXT DL

Status Display

Status

Displays system status, errors, and operational states, including function check and excess temperature warnings.

Function Check Activated

Installation Instructions

Sensor Installation

Provides detailed guidance on correctly installing various types of sensors for optimal measurement.

Sensor Lines

Covers extending sensor lines and proper cable management to minimize measurement errors.

Installing the Device

Electrical Connection

Details the electrical connections required, emphasizing safety and professional installation.

Data Link (DL-Bus)

Describes the DL-Bus for communication between the control unit and other compatible devices.

Tips on Troubleshooting

Table of Settings

Technical Data

EC- Declaration of Conformity