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Daikin EPRA12EAW1 User Manual

Daikin EPRA12EAW1
296 pages
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Installer reference guide
Daikin Altherma 3 H MT F
EPRA08EAV3
EPRA10EAV3
EPRA12EAV3
EPRA08EAW1
EPRA10EAW1
EPRA12EAW1
ETVH12SU18EA6V
ETVH12SU23EA6V
https://daikintechnicaldatahub.eu

Table of Contents

Questions and Answers:

Daikin EPRA12EAW1 Specifications

General IconGeneral
ModelEPRA12EAW1
RefrigerantR32
Power Supply220-240V, 50Hz
Noise Level (Outdoor)45 dB(A)
Operating Temperature Range (Heating)-15°C to 24°C

Summary

Installer Reference Guide

About the Documentation

General Safety Precautions

For the Installer

Outlines critical safety guidelines and precautions for installers to follow during unit installation and handling.

Electrical Safety Precautions

Outlines crucial safety measures for electrical connections, preventing shocks and hazards.

Specific Installer Safety Instructions

Electrical Installation Safety

Detailed safety instructions for all aspects of electrical installation, wiring, and components.

Application Guidelines

Setting Up Space Heating/Cooling

Guides the user on setting up the system for space heating and cooling based on room requirements.

Multiple Rooms - Two LWT Zones

Guides on setting up systems with two leaving water temperature zones for rooms with different heating/cooling needs.

Setting Up Auxiliary Heat Source

Explains how to set up an auxiliary heat source, like a boiler, for space heating in bivalent systems.

Setting Up Domestic Hot Water Tank

Guides on determining DHW consumption, selecting tank volume, and setting desired temperatures.

DHW Pump Installation

Explains how to install and configure DHW pumps for instant hot water and disinfection.

Energy Metering Setup

Describes how the system measures and displays energy data like produced heat and consumed energy.

Power Consumption Control

Describes methods to limit power consumption, including permanent limitation and digital inputs.

Unit Installation

Preparing the Installation Site

Covers the selection of an appropriate installation location with sufficient space and avoidance of dust.

Outdoor Unit Installation Site Requirements

Details the specific requirements for the installation site of the outdoor unit, including general safety precautions.

Providing Installation Structure

Guidance on ensuring the installation ground is strong and level, and securely fixing the unit.

Installing the Outdoor Unit

Step-by-step instructions for carrying and fixing the outdoor unit onto the installation structure.

Providing Drainage

Ensures proper drainage of condensation water, avoiding ice accumulation and slippery conditions.

Mounting the Indoor Unit

Outlines the typical workflow and precautions for mounting the indoor unit.

Piping Installation

Connecting Water Piping for Domestic Hot Water

Detailed instructions for connecting the domestic hot water piping, including expansion vessel and tundish.

Protecting Water Circuit Against Freezing

Explains methods for protecting the water circuit from freezing, including glycol and freeze protection valves.

Electrical Installation

Connecting Electrical Wiring

Introduces the process of connecting electrical wiring and general precautions.

Electrical Wiring Precautions

Highlights critical safety precautions for electrical wiring connections, emphasizing risk of electrocution.

Outdoor Unit Electrical Connections

Provides an overview of electrical connections for the outdoor unit.

Connecting Electrical Wiring to Outdoor Unit

Step-by-step instructions for connecting electrical wiring to the outdoor unit's switch box.

Indoor Unit Electrical Connections

Details various connections to the indoor unit, including power, control, and optional modules.

Connecting Main Power Supply

Step-by-step instructions for connecting the main power supply to the indoor unit.

Connecting Backup Heater Power Supply

Details on connecting the power supply for the backup heater, considering different models.

Configuration

Configuration Wizard

Describes the initial setup process guided by the configuration wizard upon first power-on.

Main Zone Configuration

Covers settings for the main zone, including emitter type, control, and setpoint ranges.

Additional Zone Configuration

Covers settings for an additional zone, including schedule, setpoint mode, and WD curves.

Space Heating/Cooling Settings

Covers settings related to space heating and cooling operation modes, ranges, and pumps.

User Settings Overview

Covers user-configurable settings like language, time/date, holiday, and quiet mode.

Installer Settings Overview

Contains settings specifically for installers, including configuration wizard and domestic hot water setup.

Commissioning

Precautions During Commissioning

Highlights critical precautions and information to consider before starting the commissioning process.

Pre-Commissioning Checklist

Provides a checklist of essential items to verify after installation and before unit power-up.

During Commissioning Checklist

Outlines checks to perform during the commissioning phase, including flow rate and air purge.

Air Purge Function Procedures

Explains the purpose and procedures for performing manual and automatic air purging of the water circuit.

Operation Test Run

Guides on performing test runs for heating, cooling, and tank operation to verify system functionality.

Underfloor Heating Screed Dryout

Explains the function and programming of the UFH screed dryout schedule for new installations.

Hand-over to the User

Maintenance and Service

Maintenance Safety Precautions

Highlights essential safety precautions to be taken before performing any maintenance or service work.

Yearly Maintenance of Outdoor Unit

Details the yearly maintenance procedures for the outdoor unit, including heat exchanger and filter cleaning.

Draining the Domestic Hot Water Tank

Step-by-step instructions for safely draining the domestic hot water tank.

Inspecting the Inside of the DHW Tank

Procedures for inspecting the interior of the domestic hot water tank, potentially using an endoscope.

Troubleshooting

Troubleshooting Precautions

Essential safety precautions to follow when troubleshooting, emphasizing disconnection from power.

Solving Problems Based on Symptoms

Guides on identifying and resolving common operational problems based on observed symptoms.

Solving Problems Based on Error Codes

Guides on how to display and understand error codes for system malfunctions.

Error Codes Overview

Provides an overview of common error codes and their corresponding descriptions for unit malfunctions.

Disposal

Recovering Refrigerant

Procedures for recovering refrigerant from the outdoor unit before disposal, complying with legislation.

Technical Data

Wiring Diagram: Outdoor Unit

Illustrates the wiring connections for the outdoor unit, including component identification and symbols.

Wiring Diagram: Indoor Unit

Illustrates the wiring connections for the indoor unit, including terminal points and optional parts.

Technical Specifications: Domestic Hot Water Tank

Provides technical specifications for the domestic hot water tank, including capacity and reheat times.

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