General Information; General Notes; Introduction; Overview Of Yutaki R32 System - Hitachi YUTAKI S Series Technical Catalogue

1 General information

General information
1.1 General information

1.1.1 General notes

© Copyright 2019 Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. – All rights reserved.
No part of this publication may be reproduced, copied, filed or transmitted in any shape or form without the permission of
Johnson Controls-Hitachi Air Conditioning Spain, S.A.U.
Within the policy of continuous improvement of its products, Johnson Controls-Hitachi Air Conditioning Spain, S.A.U.
reserves the right to make changes at any time without prior notification and without being compelled to introducing
them into previously sold products. This document may therefore have been subject to amendments during the life of the
product.
HITACHI makes every effort to offer correct, up-to-date documentation. Despite this, printing errors cannot be controlled
by HITACHI and are not its responsibility.
As a result, some of the images or data used to illustrate this document may not refer to specific models. No claims will
be accepted based on the data, illustrations and descriptions included in this manual.
No type of modification must be made to the equipment without prior, written authorization from the manufacturer.
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N O T E
This air conditioner has been designed for standard air conditioning for human beings. For use in other applications, please contact your
HITACHI dealer or service contractor.

1.1.2 Introduction

HITACHI proudly announces the newest R32 range of air-to-water heat pumps in its award-winning YUTAKI range.
YUTAKI units produce heating and domestic hot water like any oil or gas boiler, but transforming renewable energy from
the outside air into heat. Air to water heat pumps extract the free energy present in the air, which is enough to heat a
home up to a comfortable temperature, even on the coldest winter day. Every kW of electricity used to power the heat
pump can yield up to more than 5 kW of energy for heating; this provides savings of up to 80% on heating expenses
compared to a traditional fossil fuel boiler.
The new R32 YUTAKI series, based on state-of-the-art technology, does not only achieve an outstanding performance in
space heating but also provides domestic hot water with high efficiency. Additionally, cooling operation for summer can
also be provided installing the dedicated "Cooling kit" accessory of HITACHI.
The system is simple to control; its new user controller (PC-ARFH1E) improves the acclaimed and successful design
used with the existing LCD controller and provides a great deal of new functions like: wizard start-up configuration, auto
cool/heat, improved timer, etc.

1.1.2.1 Overview of YUTAKI R32 system

The wide range of YUTAKI products is basically divided in two types of system:
• Split system
• Monobloc system
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Split system - YUTAKI S, YUTAKI S COMBI
It consists of one outdoor unit and one indoor unit. The outdoor unit extracts the heat present in the air, increases its
refrigerant temperature and transmits it to the water circuit using the plate heat exchanger of the indoor unit, where the
heat is taken to radiators (fan-coils), underfloor heating components or both (2nd temperature area).
Two types of indoor unit can be used in heating split systems:
YUTAKI S
The indoor unit of YUTAKI S is designed for space heating, in wall-mounted installation. It is convenient for new
installations with low capacity requirements (Well insulated installations, high efficiency radiators...).
2 TCGB0123 rev.2 - 10/2019