Need help?Do you have a question about the Hitachi DHWS200S-2.7H2E and is the answer not in the manual?
Explains how to identify and reference the heat pump model using its specific name for manual context.
Outlines HITACHI's policy on publication reproduction, continuous improvement, and potential product specification changes.
Explains the use of special symbols to highlight safety situations and warnings during unit installation and operation.
Provides crucial safety instructions relating to electrical parts, water contact, and proper system operation to prevent accidents.
Stresses the importance of reading all system manuals, ensuring component compatibility, and understanding potential hazards.
Lists and describes the main parts of the DHWS tank and provides detailed dimensional data for specific models.
Details the required clearance and access points for servicing when the DHW tank is installed above or beside the indoor unit.
Discusses the essential piping requirements for connecting the space heating circuit and the domestic hot water system.
Covers hydraulic elements for DHW, circuit requirements, and the water filling process for heating coil and DHW circuits.
Outlines essential checks for electrical installation, power supply, and compliance with national regulations.
Explains the specific electrical wiring connections between the indoor unit and the DHW tank.
Covers general installation guidelines, component receipt, location selection, and unpacking procedures.
Lists factory-supplied parts and provides guidance on connecting flexible water coil pipes to prevent leakage.
Describes the primary components of the DHW tank unit, including covers, controller, and connections.
Provides step-by-step instructions on how to safely remove the front cover of the DHWT for internal access.
Details the installation procedure for mounting the DHW tank on top of the YUTAKI S80 indoor unit, including pipe connections.
Covers wall fixation, levelling procedures, and post-installation tests and checks before cover reassembly.
Explains cable connections and the final levelling procedure for the DHW tank.
Describes the location and functionality of the integrated unit controller, its LCD display, and the purpose of each control button.
Lists technical parameters for control devices such as thermostats, contactors, and sensors for the DHW tank.
Details preliminary unit checks, electrical connection integrity, and wiring safety before system commissioning.
Outlines essential checks for the hydraulic circuit, including water filling, pressure, and valve operation.
Covers routine periodic checks for hot water flow, pressure, water leakage, security valve, and fixing points for tank reliability.
Provides instructions on how to perform descaling of the heating coil to maintain heat exchange efficiency.
Explains how to drain the heating coil circuit and the DHW circuit, including safety precautions.
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General