Mitsubishi EHSC-VM6C, EHSD-YM9C, EHSC-VM2C, EHSC-VM2EC, EHSC-VM6EC Installation Manual

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Page 1

РУКОВОДСТВО ПО УСТАНОВКЕ

Для безопасного и правильного использования внимательно прочитайте данное руководство и руководство по установке наружного блока перед установкой гидромодуля. Оригинальная версия на английском языке, другие - перевод с оригинала.

TIL INSTALLATØREN

FÖR INSTALLATÖREN

PARA O INSTALADOR

PER L’INSTALLATORE

PARA EL INSTALADOR

VOOR DE INSTALLATEUR

POUR L’INSTALLATEUR

FÜR INSTALLATEURE

FOR INSTALLER

INSTALLATION MANUAL

For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing the hydrobox. English is the original language. The other language versions are translations of the original.

INSTALLATIONSHANDBUCH

Aus Sicherheitsgründen und zur richtigen Verwendung vor der Installation der Hydrobox die vorliegende Bedienungsanleitung und die Installationsanleitung der Außeneinheit gründlich durchlesen. Die Originalsprache ist Englisch. Die anderen Sprachversionen sind vom Original übersetzt.

MANUEL D’INSTALLATION

Pour une utilisation correcte et sûre, lisez soigneusement ce manuel et le manuel d’installation de l’unité extérieure avant d’installer l’ECODAN hydrobox. L’anglais est la langue originale. Les versions fournies dans d’autres langues sont des traductions de l’original.

INSTALLATIEHANDLEIDING

Lees voor een veilig en juist gebruik deze handleiding en de installatiehandleiding van de buiten-unit aandachtig door voordat u met de installatie van de hydrobox begint. Engels is de oorspronkelijke taal. De andere taalversies zijn vertalingen van het origineel.

MANUAL DE INSTALACIÓN

Para un uso correcto y seguro, lea detalladamente este manual y el manual de instalación de la unidad exterior antes de instalar la Hydrobox. El idioma original del documento es el inglés. Las versiones en los demás idiomas son traducciones del original.

MANUALE DI INSTALLAZIONE

Per un utilizzo sicuro e corretto, prima di installare l’Hydrobox leggere attentamente questo manuale e quello di installazione dell’unità esterna. Il testo originale è redatto in lingua inglese. Le altre versioni linguistiche rappresentano traduzioni dell’originale.

MANUAL DE INSTALAÇÃO

Para uma utilização segura e correcta, leia este manual e o manual de instalação da unidade interior antes de instalar o permutador de calor. O idioma original é o inglês. As versões em outros idiomas são traduções do idioma original.

INSTALLATIONSMANUAL

Af hensyn til sikker og korrekt brug skal denne vejledning og vejledningen til udendørsenheden læses omhyggeligt, inden hydroboxenheden installeres. Engelsk er det oprindelige sprog. De andre sprogversioner er oversættelser af originalen.

INSTALLATIONSMANUAL

För säker och korrekt användning, läs denna manual och utomhusenhetens installationsmanual innan du installerar hydroboxen. Engelska är originalspråket. De övriga språkversionerna är översättningar av originalet.

INSTALLERINGSHÅNDBOK

For å sikre en trygg og riktig bruk skal du lese denne håndboken og installeringshåndboken for utendørsenheten grundig før du monterer hydroboksen. Engelsk er originalspråket. De andre språkversjonene er oversettelser av originalen.

ASENNUSOPAS

Lue turvallista ja asianmukaista käyttöä varten tämä opas ja ulkoyksikön asennusopas huolellisesti ennen hydroboxin asentamista. Alkuperäiskieli on englanti. Muut kieliversiot ovat alkuperäisen käännöksiä.

ASENTAJALLE

FOR MONTØREN

Hydrobox

Гидромодуль без накопительного бака ГВС

EHSC series EHSD series EHPX series ERSC series ERSD series

Русский (RU)

ДЛЯ МОНТАЖНИКОВ

Česky (CZ)

PRO TECHNIKY PROVÁDĚJÍCÍ INSTALACI

PŘÍRUČKA PRO INSTALACI

Z bezpečnostních důvodů a pro správné použití zásobníkového modulu si před jeho instalací důkladně prostudujte Návod k obsluze a také Příručku pro instalaci venkovní jednotky. Jazyk originálu je angličtina. Jiné jazykové verze jsou překlady z originálu.

Polski (PL)

DLA INSTALATORA

INSTRUKCJA MONTAŻU

Należy dokładnie zapoznać się z niniejszą instrukcją obsługi i instrukcją montażu jednostki zewnętrznej, aby następnie bezpiecznie i z dobrym skutkiem użytkować moduł wewnętrzny z wbudowanym zasobnikiem CWU.Oryginał dokumentu jest dostępny w języku angielskim. Inne wersje językowe są tłumaczeniami oryginału.

ЗА ИНСТАЛАТОРИ

РЪКОВОДСТВО ЗА МОНТАЖ

С оглед на безопасността и за правилна употреба на Hydrobox прочетете внимателно – преди монтажа – настоящото ръководството за потребителя и ръководството за монтаж на външното тяло. Оригиналният език е английски. Другите езикови варианти са превод от оригинал.

Български (BG)

Español (ES)

Italiano (IT)

Português (PT)

Dansk (DA)

Svenska (SV)

Norsk (NO)

Suomi (FI)

English (EN)

Deutsch (DE)

Français (FR)

Nederlands (NL)

Page 2

Contents

1. Safety Notices .................................................................. 2

2. Introduction ...................................................................... 2

3. Technical Information ...................................................... 3

4. Installation ....................................................................... 9

4.1 Location ........................................................................ 9

4.2 Water Quality and System Preparation .................... 12

4.3 Water Pipe Work ......................................................... 12

4.4 Electrical Connection ................................................ 15

5. System Set UP ................................................................ 18

5.1 DIP Switch Functions ................................................ 18

5.2 Connecting inputs/outputs ....................................... 19

5.3 Wiring for 2-zone temperature control .................... 20

5.4 2-zone valve ON/OFF control .................................... 21

5.5 Indoor unit only operation ......................................... 21

5.6 Smart grid ready......................................................... 21

5.7 Installation procedure for DHW tank ........................ 22

5.8 Remote Controller Options ....................................... 24

5.9 Using SD memory card.............................................. 26

5.10 Main remote controller ............................................ 27

6. Service and Maintenance .............................................. 35

7. Supplementary information .......................................... 40

Abbreviations and glossary

No. Abbreviations/Word Description

1 Compensation curve mode Space heating incorporating outdoor ambient temperature compensation 2 COP Coefcient of Performance the efciency of the heat pump 3 Cooling mode Space cooling through fan-coils or underoor cooling 4 DHW mode Domestic hot water heating mode for showers, sinks, etc 5 Flow temperature Temperature at which water is delivered to the primary circuit 6 Freeze stat. function Heating control routine to prevent water pipes freezing 7 FTC Flow temperature controller, the circuit board in charge of controlling the system 8 Heating mode Space heating through radiators or Underoor heating

9 Hydrobox Indoor unit housing the component plumbing parts (NO DHW tank) 10 Legionella Bacteria potentially found in plumbing, showers and water tanks that may cause Legionnaires disease 11 LP mode Legionella prevention mode – a function on systems with water tanks to prevent the growth of legionella bacterium 12 Packaged model Plate heat exchanger (Refrigerant - Water) in the outdoor heat pump unit 13 PRV Pressure relief valve 14 Return temperature Temperature at which water is delivered from the primary circuit 15 Split model Plate heat exchanger (Refrigerant - Water) in the indoor unit 16 TRV Thermostatic radiator valve – a valve on the entrance or exit of the radiator panel to control the heat output

■

Heat pumps certication The mark “NF heat pumps” is an independent certication program proving that heat pumps’ performances and production quality of the factory are conformed with the certication reference NF-414. The combinations of indoor units and outdoor units, and their applications allowed to use the NF PAC mark can be consulted on the website www.marque-nf.com

Accessories (included)

Back plate Screw M5×8 SD memory card

1 2 1

Page 3

Safety Notices

WARNING

Mechanical

The hydrobox and outdoor units must not be installed, disassembled, relocated, altered or repaired by the user. Ask an authorised installer or technician. If the unit is installed improperly or modied after installation by the user water leakage, electric shock or re may result.

The outdoor unit should be securely xed to a hard level surface capable of bearing its weight. The hydrobox should be positioned on a hard vertical surface capable of supporting its lled weight to prevent excessive sound or vibration. Do not position furniture or electrical appliances below the outdoor unit or hydrobox. The discharge pipework from the emergency/safety devices of the hydrobox should be installed according to local law. Only use accessories and replacement parts authorised by Mitsubishi Electric ask a qualied technician to t the parts.

Electrical

All electrical work should be performed by a qualied technician according to local regulations and the instructions given in this manual. The units must be powered by a dedicated power supply and the correct voltage and circuit breakers must be used. Wiring should be in accordance with national wiring regulations. Connections must be made securely and without tension on the terminals. Earth unit correctly.

General

Keep children and pets away from both the hydrobox and outdoor units. Do not use the hot water produced by the heat pump directly for drinking or cooking. This could cause illness to the user. Do not stand on the units. Do not touch switches with wet hands. Annual maintenance checks on both the hydrobox and the outdoor unit should be conducted by a qualied person. Do not place containers with liquids on top of the hydrobox. If they leak or spill onto the hydrobox damage to the unit and/or re could occur. Do not place any heavy items on top of the hydrobox. When installing, relocating, or servicing the hydrobox, use only the specied refrigerant (R410A) to charge the refrigerant lines. Do not mix it with any other refrigerant

and do not allow air to remain in the lines. If air is mixed with the refrigerant, then it can be the cause of abnormal high pressure in the refrigerant line, and may result in an explosion and other hazards. The use of any refrigerant other than that specied for the system will cause mechanical failure or system malfunction or unit breakdown. In the worst case, this could lead to a serious impediment to securing product safety.

In heating mode, to avoid the heat emitters being damaged by excessively hot water, set the target ow temperature to a minimum of 2ºC below the maximum allowable temperature of all the heat emitters. For Zone2, set the target ow temperature to a minimum of 5ºC below the maximum allowable ow temperature of all the heat emitters in Zone2 circuit.

Do not install the unit where combustible gases may leak, be produced, ow, or accumulate. If combustible gas accumulates around the unit, re or explosion may result.

CAUTION

Use clean water that meets local quality standards on the primary circuit. The outdoor unit should be installed in an area with sufcient airow according to the diagrams in the outdoor unit installation manual. The hydrobox should be located inside to minimise heat loss. Water pipe-runs on the primary circuit between outdoor and indoor unit should be kept to a minimum to reduce heat loss. Ensure condensate from outdoor unit is piped away from the base to avoid puddles of water. Remove as much air as possible from water circuit. Refrigerant leakage may cause suffocation. Provide ventilation in accordance with EN378-1. Be sure to wrap insulation around the piping. Direct contact with the bare piping may result in burns or frostbite. Never put batteries in your mouth for any reason to avoid accidental ingestion. Battery ingestion may cause choking and/or poisoning. Install the unit on a rigid structure to prevent excessive sound or vibration during operation. If power to the hydrobox is to be turned off (or system switched off) for a long time, the water should be drained. Preventative measures should be taken against water hammer, such as installing a Water Hammer Arrestor on the primary water circuit, as directed by the manufacturer. In order to prevent condensation on emitters, adjust ow temperature appropriately and also set the lower limit of the ow temperature on site.

As for the handling of refrigerant, refer to the outdoor unit installation manual.

Please read the following safety precautions carefully.

WARNING:

Precautions that must be observed to prevent injuries or death.

CAUTION:

Precautions that must be observed to prevent damage to unit.

This installation manual along with the user manual should be left with the product after installation for future reference. Mitsubishi Electric is not responsible for the failure of locally-supplied parts.

• Be sure to perform periodical maintenance.

• Be sure to follow your local regulations.

• Be sure to follow the instructions provided in this manual.

The purpose of this installation manual is to instruct competent persons how to safely and efficiently install and commission the hydrobox system. The target readers of this manual are competent plumbers and/or refrigeration engineers

Introduction

who have attended and passed the requisite Mitsubishi Electric product training and have appropriate qualications for installation of an unvented hot water hydrobox specic to their country.

Page 4

Technical Information

Product specication

Model name

EHSD-

MEC

EHSD-

VM2C

EHSD-

YM9C

EHSC-

MEC

EHSC-

VM2C

EHSC-

VM2EC

EHSC-

VM6C

EHSC-

VM6EC

EHSC-

YM9C

EHSC-

YM9EC

EHSC-

TM9C

ERSD-

VM2C

ERSC-

MEC

ERSC-

VM2C

EHPX-

VM2C

EHPX-

VM6C

EHPX-

YM9C

Overall unit dimensions 800 × 530 × 360 mm (Height × Width × Depth)

Weight (empty) 38 kg 43 kg 44 kg 45 kg 42 kg 48 kg 43 kg 49 kg 44 kg 49 kg 44 kg 49 kg 45 kg 43 kg 49 kg 37 kg 38 kg 38 kg

Weight (full) 44 kg 49 kg 50 kg 51 kg 49 kg 55 kg 50 kg 56 kg 51 kg 56 kg 51 kg 56 kg 51 kg 50 kg 56 kg 42 kg 43 kg 43 kg

Water volume of heating circuit in the unit 5.2 kg 5.2 kg 5.2 kg 5.2 kg 6.1 kg 6.1 kg 6.1 kg 6.1 kg 6.1 kg 6.1 kg 6.1 kg 6.1 kg 5.5 kg 6.4 kg 6.4 kg 4.5 kg 4.5 kg 4.5 kg

Plate heat exchanger (MWA2) — — — —

— — — —

Plate heat exchanger (MWA1)

— — — — — — — — — — — — —

Cooling mode NOT available Available NOT available

Unvented expansion

vessel(Primary heating)

Nominal volume — 10 L — 10 L — 10 L — 10 L — 10 L — 10 L

Charge pressure — 1 bar — 1 bar — 1 bar — 1 bar — 1 bar — 1 bar

Safety

device

Water

circuit

(Primary)

Control thermistor 1 - 80°C

Pressure relief valve 0.3 MPa (3bar)

Flow sensor Min. ow 5.0 L/min

Booster

heater

Manual reset thermostat — 90°C — 90°C — 90°C

Thermal Cut-out (for dry run prevention) — 121°C — 121°C — 121°C

Primary circuit circulating Pump Grundfos UPM2 15-70 130 Grundfos UPM2K 15-75 130 Grundfos UPM2 15-70 130

Connections

Water 28mm compression (primary circuit) G1 (Male)

28mm compression

(primary circuit)

Refrigerant

(R410A)

Liquid 6.35 mm 9.52 mm 6.35 mm 9.52 mm —

Gas 12.7 mm 15.88 mm 12.7 mm 15.88 mm —

Target temperature

range

Flow

temperature

Heating 25 - 60°C

Cooling — 5 - 25°C —

Room

temperature

Heating 10 - 30 °C

Cooling — NOT available —

Guaranteed operat-

ing range

Ambient *1 0 - 35°C (

80 %RH)

Outdoor

temperature

Heating See outdoor unit spec table.

Cooling —

See outdoor unit spec table

(min. 10°C). *2

—

Electrical data

Control board

Power supply

(Phase, voltage, fre-

quency)

~/N, 230 V, 50 Hz

Breaker

(*when powered from

independent source)

10A

Booster

heater

Power supply

(Phase, voltage, fre-

quency)

— —

~/N, 230 V,

50 Hz

3~, 400 V,

50 Hz

—

~/N, 230 V,

50 Hz

~/N, 230 V,

50 Hz

~/N, 230 V,

50 Hz

~/N, 230 V,

50 Hz

3~, 400 V,

50 Hz

3~, 400 V,

50 Hz

3~, 230 V,

50 Hz

~/N, 230 V,

50 Hz

—

~/N, 230 V,

50 Hz

~/N, 230 V,

50 Hz

~/N, 230 V,

50 Hz

3~, 400 V,

50 Hz

Capacity — — 2kW

3kW

+6kW

— 2kW 2kW

2kW

+4kW

2kW

+4kW

3kW

+6kW

3kW

+6kW

3kW

+6kW

2kW — 2kW 2kW

2kW

+4kW

3kW

+6kW

Current — — 9 A 13A — 9 A 9 A 26 A 26 A 13A 13A 23A 9 A — 9 A 9 A 26 A 13A

Breaker — — 16 A 16A — 16 A 16 A 32 A 32 A 16A 16A 32A 16 A — 16 A 16 A 32 A 16A

Sound pressure level 28 dB(A)

Sound power level 40 dB(A)

Optional extras

●Wireless Remote Controller PAR-WT50R-E ●

Tank thermistor (THW5) (30 m)

PAC-TH011TKL-E *1 The environment must be frost-free.

●Wir ele ss Receiver PAR-WR51R-E ●Ther misto r PAC-TH011-E *2 Cooling mode is not available in low outdoor temperature.

●Remote Sensor PAC-SE41TS-E ●High temperature thermistor PAC-TH011HT-E

●Tank thermistor (THW5) (5 m) PAC-TH011TK-E ●ecodan Wi-Fi Interface PAC-WF010-E

●Joint pipe (ø15.88 → ø12.7) PAC-SH50RJ-E ●2 zone kit PAC-TZ01-E

●Joint pipe (ø9.52 → ø6.35) PAC-SH30RJ-E

Page 5

Technical Information

Component Parts

<E*S*-*M**C> (Split model system)

<EHPX-*M*C> (Packaged model system)

*For installation of E*S*-*M*EC model, make sure to install a primary-side expansion vessel in the eld. (See Figure 4.3.4)

No. Part name

EHS*-MEC

EHS*-

*M*C

EHSC*M*EC

ERS*VM2C

ERSC-

MEC

EHPX-

*M*C

1 Control and electrical box 2 Main remote controller

Plate heat exchanger (Refrigerant - Water)

4 Water circulation pump 1 5 Pump valve 6 Drain cock (Primary circuit) 7 Booster heater 1,2

- -

8 Flow sensor

9 Manometer 10 Pressure relief valve (3bar) 11 Automatic air vent 12 Expansion vessel

- - -

13 Strainer valve 14 Drain pan

- - - -

Page 6

Technical Information

(

348)

357

291

263

242

103

461

419

334

163

124

242

(348)

357

291

263

134

133

365

308

163

223

124

461

100±5

592

800

260

530

C D

A G

(348)

461

410

395

353

310

163

124

291

263

357

242

164

(242)

110

Technical Drawings

<EHS*> (Split model system)

<Front>

Automatic air vent

Front panel

Earth leakage circuit breaker

Terminal block

Main remote controller

Pressure relief valve

G1/2

Back panel support

Hook

<ERS*> (Split model system for heating and cooling)

<EHPX> (Packaged model system)

<Unit: mm>

Letter Pipe description Connection size/type

Space heating/Indirect DHW tank (primary) return connection

28 mm/Compression (EHS*-*and EHPX-*) G1 nut (ERS*-*)

Space heating/Indirect DHW tank (primary) ow connection

28 mm/Compression (EHS*-*and EHPX-*) G1 nut (ERS*-*)

C Refrigerant (Liquid)

6.35 mm/Flare (E*SD-*)

9.52 mm/Flare (E*SC-*)

D Refrigerant (Gas)

12.7 mm/Flare (E*SD-*)

15.88 mm/Flare (E*SC-*)

Flow connection from heat pump

28 mm/Compression (EHPX-*)

Return connection to heat pump

28 mm/Compression (EHPX-*)

Discharge pipe (by installer) from pressure relief valve

G1/2” female (valve port within hydrobox casing)

Electrical cable inlets

For inlets and , run high-voltage wires including power cable, indoor-outdoor cable, and external output wires.

For inlets

and , run low-voltage wires including external input wires and thermistor wires.

For a wireless receiver (option) cable,

use inlet

I Drain socket

O.D. ø20

Page 7

Technical Information

Unit Compatibility

Hydrobox

Outdoor unit

EHSD-

MEC

EHSD-MCEHSD-

VM2C

EHSD-

YM9C

EHSC-

MEC

EHSC-

VM2C

EHSC-

VM2EC

EHSCVM6C

EHSCVM6EC

EHSC-

YM9C

EHSC-

YM9EC

EHSC-

TM9C

ERSD-

VM2C

ERSC-

MEC

ERSCVM2C

EHPX-

VM2C

EHPX-

VM6C

EHPX-

YM9C

Packagedtype

PUHZ-W50, 85, 112 PUHZ-HW112, 140

― ― ― ― ― ― ― ― ― ― ― ― ― ― ―

Split-type

SUHZ-SW45

― ― ― ― ― ― ― ― ― ― ― ― ―

PUHZ-SW40, 50, 75

(See below.)

― ― ― ― ― ― ― ― ― ― ― ― ―

PUHZ-FRP71

― ― ― ― ― ― ― ― ― ―

PUHZ-SW75, 100, 120 PUHZ-SHW80, 112, 140

― ― ― ― ― ― ― ―

PUMY-P112, 125, 140*KM*2

― ― ― ― ― ― ― ― ― ― ―

Note

• Be sure to follow your local regulations to perform system conguration of the DHW connections.

• DHW connections are not included in the hydrobox package. All required parts are to be sourced locally.

• To enable draining of the hydrobox an isolating valve should be positioned on both the inlet and outlet pipework.

• Be sure to install a strainer on the inlet pipe work to the hydrobox.

• Suitable drain pipework should be attached to all relief valves in accordance with your country's regulations.

• A backow prevention device must be installed on water supply pipework (IEC 61770).

• When using components made from different metals or connecting pipes made of different metals insulate the joints to prevent a corrosive reaction taking place which will damage the pipework.

Water circuit diagram

<EHS*> (Split model system) <ERS*> (Split model system for heating and cooling)

<EHPX> (Packaged model system)

Local system

Refrigerant pipe

Water supply

DHW

Drain

Cold water

Water pipe

Hydrobox

Flare connections

Local system

No. Part name

EHS*MEC

EHS**M*C

EHSC*M*EC

ERS*VM2C

ERSCMEC

EHPX*M*C

1 Control and electrical box 2

Main remote controller

Plate heat exchanger (Refrigerant - Water)

Water circulation pump 1

Pump valve

Drain cock (Primary circuit)

Booster heater 1, 2

- -

Flow sensor

Manometer

Pressure relief valve (3 bar)

Automatic air vent

Expansion vessel

- - -

Strainer valve

Drain pan

- - - -

THW1

THW2

TH2

THW5 (Optional part PAC-TH011TK-E or PAC-TH011TKL-E)

- - - - - -

Outdoor unit

- - - - - -

Drain pipe (Local supply)

- - - - - -

3-way valve (Local supply)

- - - - - -

DHW indirect unvented tank (Local supply)

- - - - - -

Cold water inlet pipe (Local supply)

- - - - - -

DHW outlet pipe (Local supply)

- - - - - -

Back ow prevention device (Local supply)

- - - - - -

Isolating valve (Local supply)

- - - - - -

Magnetic lter (Local supply) (Recommended)

- - - - - -

Strainer (Local supply)

- - - - - -

*1 Refer to the following section [Local system].

● When connecting E*SD-* to PUHZ-SW75, the following refrigerant joint pipes are necessary. PAC-SH50RJ-E (ø15.88 → ø12.7 for gas refrigerant pipe) PAC-SH30RJ-E (ø9.52 → ø6.35 for liquid refrigerant pipe)

Page 8

1-zone temperature control

2-zone temperature control 1-zone temperature control with boiler

2-zone temperature control with boiler

1-zone temperature control (2-zone valve ON/OFF control)

Technical Information

Local system

Zone1

Zone2

Zone1

Zone2

Flow switch specications: 12V DC / 1 mA / Both normally-open and normally-closed types can be used. (Set DIP switch 3 to select the logics. Refer to “ 5.1 DIP switch function”.)

1. Zone1 heat emitters (e.g. radiator, fan coil unit) (local supply)

2. Mixing tank (local supply)

3. Zone1 ow water temp. thermistor (THW6)

4. Zone1 return water temp. thermistor (THW7)

5. Zone1 water circulation pump (local supply)

6. Zone1 ow switch (local supply) *

7. Motorized mixing valve (local supply)

8. Zone2 ow water temp. thermistor (THW8)

9. Zone2 return water temp. thermistor (THW9)

Optional part : PAC-TH011-E

10. Zone2 water circulation pump (local supply)

11. Zone2 ow switch (local supply) *

12. Zone2 heat emitters (e.g. underoor heating) (local supply)

13. Boiler ow water temp. thermistor (THWB1)

14. Boiler return water temp. thermistor (THWB2)

15. Boiler (local supply)

16. Zone1 2-way valve (local supply)

17. Zone2 2-way valve (local supply)

18. Bypass valve (local supply)

Optional part : PAC-TH011HT-E

Zone1

Zone2

Page 9

Technical Information

Energy monitor

End user can monitor accumulated*1 ‘Consumed electrical energy’ and ‘Delivered heat energy’ in each operation mode*2 on the main remote controller. *1 Monthly and Year to date *2 - DHW operation

- Space heating

- Space cooling

Refer to “5.10 Main remote controller” for how to check the energy, and “5.1 DIP switch functions” for the details on DIP-SW setting. Either one of the following two method is used for monitoring.

Note: Method 1 should be used as a guide. If a certain accuracy is required, the 2nd method should be used.

1. Calculation internally Electricity consumption is calculated internally based on the energy consumption of outdoor unit, electric heater, water pump(s) and other auxiliaries. (*3) Delivered heat is calculated internally by multiplying delta T (Flow and Return temp.) and flow rate measured by the factory fitted sensors. Set the electric heater capacity and water pump(s) input according to indoor unit model and specs of additional pump(s) supplied locally. (Refer to the menu tree in “5.10 Main remote controller”)

Booster heater1 Booster heater2

Immersion

heater*1

Pump1*2 Pump2 Pump3

Default 2kW 4kW 0kW

***(factory tted pump)

0kW 0kW

EHSD-MEC 0kW 0kW 0kW *1 ***

When additional pumps supplied locally are connected as Pump2/3, change setting according to specs of the pumps.

EHSD-MC 0kW 0kW 0kW *1 ***

EHSD-VM2C 2kW 0kW 0kW *1 ***

EHSD-YM9C 3kW 6kW 0kW *1 ***

EHSC-MEC 0kW 0kW 0kW *1 ***

EHSC-VM2C 2kW 0kW 0kW *1 ***

EHSC-VM2EC 2kW 0kW 0kW *1 ***

EHSC-VM6C 2kW 4kW 0kW *1 ***

EHSC-VM6EC 2kW 4kW 0kW *1 ***

EHSC-YM9C 3kW 6kW 0kW *1 ***

EHSC-YM9EC 3kW 6kW 0kW *1 ***

EHSC-TM9C 3kW 6kW 0kW *1 ***

ERSD-VM2C 2kW 0kW 0kW *1 ***

ERSC-MEC 0kW 0kW 0kW *1 ***

ERSC-VM2C 2kW 0kW 0kW *1 ***

EHPX-VM2C 2kW 0kW 0kW *1 ***

EHPX-VM6C 2kW 4kW 0kW *1 ***

EHPX-YM9C 3kW 6kW 0kW *1 ***

*1 Change setting to 3kW when connecting optional immersion heater "PAC-IH03V2-E". *2 "***" displayed in the energy monitor setting mode means the factory tted pump is connected as Pump 1 so that the input is automatically calculated. *3 When the hydrobox is connected with a PUHZ-FRP or PUMY models, electricity consumption is not calculated internally. To display the electricity consumption, conduct

the 2nd method.

When anti-freeze solution (propylene glycol) is used for primary water circuit, set the delivered energy adjustment if necessary. For further detail of above, refer to “5.10 Main remote controller”.

2. Actual measurement by external meter (locally supplied) FTC has external input terminals for 2 ‘Electric energy meters’ and a ‘Heat meter’. If two ‘Electric energy meters’ are connected, the 2 recorded values will be combined at the FTC and shown on the main remote controller. (e.g. Meter 1 for H/P power line, Meter 2 for heater power line) Refer to the [Signal inputs] section in “5.2 Connecting inputs/outputs” for more information on connectable electric energy meter and heat meter.

Page 10

Hydrobox is delivered on a wooden pallet base with cardboard protection.

Service access

Hook

Back panel support

● Prepare the proper tools.

● Prepare the proper protection.

● Allow parts to cool before attempting any maintenance.

● Provide adequate ventilation.

● After stopping the operation of the system, turn off the power-supply breaker and remove the power plug.

● Discharge the capacitor before commencing work involving the electric parts.

● Do not perform work involving electric parts with wet hands.

● Do not pour water or liquid into the electric parts.

● Do not touch the refrigerant.

● Do not touch the hot or cold surfaces in the refrigerant cycle.

● When the repair or the inspection of the circuit needs to be carried out without turning off the power, exercise great caution not to touch any live parts.

Installation

4.1 Location Transportation and Handling

Care should be taken when transporting the hydrobox so that the casing is not damaged by impact. Do not remove the protective packaging until hydrobox has reached its nal location. This will help protect the structure and control panel.

Note:

• The hydrobox should ALWAYS be moved by a minimum of 2 people.

• Do NOT hold piping when moving the hydrobox.

Suitable Location

Before installation the hydrobox should be stored in a frost-free weatherproof location. Units must NOT be stacked.

• The hydrobox should be installed indoors in a frost free weather proof location.

• The hydrobox should be positioned on a level wall capable of supporting it’s lled weight.

• To nd out the weight, refer to “3. Technical Information”.

• Care should be taken that minimum distances around and in front of the unit for service access are observed <Figure 4.1.3>.

• Secure the hydrobox to prevent it being knocked over.

• The hook and panel supports should be used to x the hydrobox to the wall. <Fig. 4.1.2>

• Install the hydrobox where it is not exposed to water/excessive moisture.

Service access diagrams

Service access

Parameter Dimension (mm)

a 200 b 150 c 500 d 500

Sufcient space MUST be left for the provision of discharge pipework as detailed in National and Local building regulations.

The hydrobox must be located indoors and in a frost-free environment, for example in a utility room.

Room Thermostat

If tting a new room thermostat for this system;

• Position it out of direct sunlight and draughts

• Position it away from internal heat sources

• Position it in a room without a TRV on the radiator/heat emittor

• Position it on an internal wall Note: Do not position the thermostat excessively close to the external wall. The

thermostat may detect the temperature of the wall, which could affect appropriate control of the room temperature.

• Position it approx. 1.5 m above oor level

Repositioning hydrobox

If you need to move the hydrobox to a new position FULLY DRAIN it before moving to avoid damage to the unit.

Note: Do NOT hold piping when moving the hydrobox.

Page 11

530

123

116

677

Installation

Back plate

Wall

Screw mounting holes

Notch

Mounting procedure

1. Install the included back plate accessory.

* When installing the back plate, use locally-supplied screws and compatible xing plugs.

● Figure 4.1.6 shows the relative positions between the unit and the wall secured back plate. Referring to the <Figure 4.1.3> Service access, install the back plate.

● Ensure that the notch is positioned at the TOP of the back plate. The back plate is provided with screw mounting holes that are round or oval. To prevent the unit from falling off the wall, choose the appropriate number of holes or hole positions and horizontally secure the back plate to the appropriate wall location.

Back plate

Unit

Hook (on the back of casing)

Back plate

Hook

Unit

Back plate

2. Insert the hook on the back of the hydrobox behind the notch of the back plate. *The lifting up of the hydrobox is facilitated by rst tilting the unit forward using the included packaging cushioning.

Note: Hold the MAIN BODY of the hydrobox when carrying or mounting the hydrobox to a wall.

Holding and supporting the unit by the manometer, water pipe, or refrigerant pipe may result in breakdown of the components and impact on unit’s conditions of warranty.

Packaging cushion

Unit

Wooden packaging base

Tilting the unit.

Wall

Plugs

Back plate (horizontal)

Screws

Screwdriver

Centre line

Removing the wooden packaging base.

<Unit: mm>

Page 12

Installation

Unit

Control and electrical box

Unit

Control and electrical box

Fix the unit using the 2 screws. * If it is difcult to access with power

tool, use hand tool instead.

) The back plate and the unit share the same width.

When mounting the unit, the centre lines of the back plate and the unit can be aligned by keeping the right and left edges of the back plate within the width of the unit. The hook on the unit can then be attached to the notch on the back plate. (When mounting, the casing’s lower panel support should be in contact with the wall surface.)

) Check and ensure that the mark is positioned and properly engaged at the bent section level on the back plate as shown.

Unit

Hook

To assist in xing the unit’s hook on to the notch on the back plate, rst line up the centre lines.

Centre line

Side edges of the back plate

Back plate

* Keep the edges of the back plate within

the width of the unit.

3. Referring to "How to access Internal Components and Control and Electrical Box", x the unit and the back plate using the included 2 screws (accessory items).

Caution) BEFORE performing eld piping, be sure to t and tighten these two screws.

Otherwise, the hook could be disengaged, and the unit could fall down.

Screw M5×8

Mount the unit.

Unit

mark

Hook

Back plate

Bent section of back plate

) Each of the right and left side panels has a mark indication.

Lift up the unit so that the

marks are positioned above the top edge of the back plate as shown below.

Lift up the unit so that the

marks are

positioned above the top edge of the back plate.

Lift up the unit.

Unit

mark

Wall

Hook

Back plate (wall mounted)

Top edge of back plate

Wall

Page 13

Installation

Screws

<A> <B>

Hinges

Open

Screws

4.2 Water Quality and System Preparation

General

•

The water in both primary and sanitary circuit should be clean and with pH value of 6.5-8.0.

• The followings are the maximum valves;

Calcium: 100mg/L, Ca hardness: 250mg/L Chlorine: 100mg/L, Copper: 0.3mg/L Iron/Manganese: 0.5mg/L

• Other constituents should be to European Directive 98/83 EC standards.l

• In known hard water areas, to prevent/minimise scaling, it is benecial to restrict

the routine stored water temperature (DHW max. temp.) to 55°C.

Anti-Freeze

Anti-freeze solutions MUST use propylene glycol with a toxicity rating of Class 1 as

listed in Clinical Toxicology of Commercial Products, 5th Edition.

Note:

1. Ethylene glycol is toxic and must NOT be used in the primary water circuit

in case of any cross-contamination of the potable circuit.

2. For 2-zone valve ON/OFF control, propylene glycol MUST be used.

New Installation (primary water circuit)

• Before connecting outdoor unit, thoroughly cleanse pipework of building debris,

solder etc using a suitable chemical cleansing agent.

• Flush the system to remove chemical cleanser.

• For all packaged model systems, and the split model or PUMY system without

booster heater, add a combined inhibitor and anti-freeze solution to prevent damage to the pipework and system components.

• For split model systems the responsible installer should decide if anti-freeze

solution is necessary for each site’s conditions. Corrosion inhibitor however should always be used.

Existing Installation (primary water circuit)

• Before connecting outdoor unit the existing heating circuit MUST be chemically

cleansed to remove existing debris from the heating circuit.

• Flush the system to remove chemical cleanser.

• For all packaged model systems add a combined inhibitor and anti-freeze

solution to prevent damage to the pipework and system components.

• For split model systems the responsible installer should decide if anti-freeze

solution is necessary for each site’s conditions. Corrosion inhibitor however should always be used.

When using chemical cleansers and inhibitors always follow manufacturer’s instructions and ensure the product is appropriate for the materials used in the water circuit

How to access Internal Components and Control and Electrical Box

<A> Opening the front panel

1. Remove the two lower screws.

2. Slide front panel upwards slightly and open carefully.

3. Disconnect the relay connector connecting main remote controller cable and the

control board cable.

<B> Accessing the back of the control and electrical box The control and electrical box has a holding screw on the right and is hinged on the left hand side.

1. Remove the holding screws on the control and electrical box.

The control and electrical box can then be swung forward on the left hand hinges.

Note:

1. Before accessing back of control and electrical box release cables from the tie straps attached to the cross-support.

2. After servicing, re-secure all cables using straps provided. Reconnect main remote controller cable to its relay connector. Replace front panel and re-secure screws at base.

Minimum amount of water required in the space

heating / cooling circuit

Outdoor heat pump unit Minimum water quantity [L]

Packaged model PUHZ-W50 29

PUHZ-W85 37 PUHZ-W112 48 PUHZ-HW112 48 PUHZ-HW140 60

Split model SUHZ-SW45 17

PUHZ-SW40 17 PUHZ-SW50 22 PUHZ-FRP71 32 PUHZ-SW75 32 PUHZ-SW100 43 PUHZ-SW120 54 PUHZ-SHW80 34 PUHZ-SHW112 48 PUHZ-SHW140 60 PUMY-P112 80 PUMY-P125 80 PUMY-P140 80

Note: For 2-zone temperature control system, the value in the table above excludes the amount of stored water in zone2.

4.3 Water Pipe Work

Note: Prevent the eld piping from straining the piping on the hydrobox by

xing it to a wall or applying other methods.

Hot Water Pipework

The function of the following safety components of the hydrobox should be checked on installation for any abnormalities;

• Pressure relief valve

• Expansion vessel pre-charge (gas charge pressure)

The instruction on the following pages regarding safe discharge of hot water from Safety devices should be followed carefully.

• The pipework will become very hot, so should be insulated to prevent burns.

• When connecting pipework, ensure that no foreign objects such as debris or the

like do not enter the pipe.

Hydraulic Filter Work (ONLY EHPX series)

Install a hydraulic lter or strainer (local supply) at the water intake (“Pipe E” in Table 3.3, also see associated schematic Fig. 3.5)

Pipework Connections

Connections to the hydrobox should be made using the 28 mm compression as appropriate. (except for ERSC series) Do not over-tighten compression ttings as this will lead to deformation of the olive ring and potential leaks.

Note: To weld the pipes in the eld, cool the pipes on the hydrobox using wet

towel etc. ERSC series have G1 (male) thread connections.

Insulation of Pipework

•

All exposed water pipework should be insulated to prevent unnecessary heat loss and condensation. To prevent condensate entering the hydrobox, the pipework and connections at the top of the hydrobox should be carefully insulated.

• Cold and hot water pipework should not be run close together where possible, to avoid unwanted heat transfer.

•

Pipework between outdoor heat pump unit and hydrobox should be insulated with suitable pipe insulation material with a thermal conductivity of ≤ 0.04 W/m.K.

Page 14

Installation

Locally supplied drain pipe (VP-20)

Apply polyvinyl chloride type adhesive

Drain socket

Do not pour water into these openings.

Drain Pipework (ONLY ERSC and ERSD series)

The drain pipe should be installed to drain condensing water in Cooling mode.

• Securely install the drain pipe to prevent leakage from the connection.

• Securely insulate the drain pipe to prevent water dripping from the locally supplied drain pipe.

• Install the drain pipe at a down slope of 1/100 or more.

• Do not place the drain pipe in drain channel where sulfuric gas exists.

• After installation, check that the drain pipe drains water properly from the outlet of the pipe.

1. Apply polyvinyl chloride type adhesive over the shaded surfaces inside of the

drain pipe and on the exterior of the drain socket as shown.

2. Insert the drain socket deeply into the drain pipe <Figure 4.3.1>.

Note: Securely support the locally supplied drain pipe using pipe support to

avoid the drain pipe falling from the drain socket. To prevent dirty water from draining directly onto the oor next to hydrobox, please connect appropriate discharge pipework from the hydrobox.

• Check that the drain pipe drains water properly from the outlet of the pipe.

• Check for no leakage from the connection.

Note: Always check drainage at installation regardless of season.

•

Remove the front panel and pour water of 1 litter into the drain pan <Figure 4.3.2>.

Note: Pour water slowly into the drain pan so that water does not overow

from the drain pan.

Filling the System (Primary Circuit)

1. Check and charge expansion vessel.

2. Check all connections including factory tted ones are tight.

3. Insulate pipework between hydrobox and outdoor unit.

Thoroughly clean and ush, system of all debris. (see section 4.2 for instruction.)

5. Fill hydrobox with potable water. Fill primary heating circuit with water and

suitable anti-freeze and inhibitor as necessary. Always use a lling loop with

double check valve when lling the primary circuit to avoid back ow contamination of water supply.

• Anti-freeze should always be used for packaged model systems (see section 4.2 for instruction). It is the responsibility of the installer to decide if anti-freeze solution should be used in split model systems depending on each site’s conditions. Corrosion inhibitor should be used in both split model and packaged model systems. Figure 4.3.3 shows freezing temperature against anti-freeze concentration. This figure is an example for FERNOX ALPHI-11. For other anti-freeze, please refer to relevant manual.

• When connecting metal pipes of different materials insulate the joints to prevent a corrosive reaction taking place which will damage the pipework.

6. Check for leakages. If leakage is found, retighten the screws onto the connections.

7. Pressurise system to 1 bar.

8. Release all trapped air using air vents during and following heating period.

9. Top up with water as necessary. (If pressure is below 1 bar)

50 100 150 200 250 300 350 400

Expansion vessel sizing

Expansion vessel volume [L]

System water volume [L]

Sizing Expansion Vessels

Expansion vessel volume must t the local system water volume. To size an expansion vessel both for the heating and cooling circuits the following formula and graph can be used. When the necessary expansion vessel volume exceeds the volume of an built-in expansion vessel, install an additional expansion vessel so that the sum of the volumes of the expansion vessels exceeds the necessary expansion vessel volume. * For installation of an E*S*-*M*EC model, provide and install an expansion

vessel in the eld as the model does not come tted with an expansion vessel.

V =

ε × G

1 −

P¹ + 0.098 P² + 0.098

Where;

V : Necessary expansion vessel volume [L] ε : Water expansion coefcient G : Total volume of water in the system [L]

P¹ : Expansion vessel setting pressure [MPa] P² : Max. pressure during operation [MPa]

Graph to the right is for the following values

ε : at 70 °C = 0.0229

P¹ : 0.1 MPa P² : 0.3 MPa

*A 30% safety margin has been added.

-25

-20

-15

-10

-5

10 20 30 40 50

Freezing temperature [°C]

Anti-freeze concentration [%]

Page 15

0 5 10 15 20 25 30 3 5 4 0

0 5 10 15 20 25 30 35 4 0

0 5 10 15 20 2 5 3 0 35 40

0 5 1 0 15 20 25 30 35 40 45

Installation

* If the water ow rate is less than 7.1 L/min, the ow rate error will be activated.

If the water ow rate exceeds 27.7 L/min, the ow speed will be greater than 1.5 m/s, which could erode the pipes.

Water Circulation Pump Characteristics

Pump speed can be selected by main remote controller setting (see <Figure 4.3.5 -

4.3.9>). Adjust the pump speed setting so that the ow rate in the primary circuit is appropriate for the outdoor unit installed (see Table 4.3.1). It may be necessary to add an additional pump to the system depending on the length and lift of the primary circuit.

For outdoor unit model not listed in the <Table 4.3.1>, refer to Water ow rate range in the specication table of outdoor unit Data Book. In such case, make sure that the ow rate is greater than 7.1 L/min and less than 27.7 L/min.

<Second pump > If a second pump is required for the installation please read the following carefully. If a second pump is used in the system it can be positioned in 2 ways. The position of the pump inuences which terminal of the FTC the signal cable should be wired to. If the additional pump(s) have current greater than 1A please use appropriate relay. Pump signal cable can either be wired to TBO.1 1-2 or CNP1 but not both.

Option 1 (Space heating/cooling only) If the second pump is being used for the heating circuit only then the signal cable should be wired to TBO.1 terminals 3 and 4 (OUT2). In this position the pump can be run at a different speed to the hydrobox’s in-built pump.

Option 2 (Primary circuit DHW and space heating/cooling) If the second pump is being used in the primary circuit between the hydrobox and the outdoor unit (Package system ONLY) then the signal cable should be wired to TBO.1 terminals 1 and 2 (OUT1). In this position the pump speed MUST match the speed of the hydrobox’s in-built pump.

Note: Refer to 5.2 Connecting inputs/outputs.

Outdoor heat pump unit Water ow rate range [L/min]

Packaged model PUHZ-W50 7.1-14.3

PUHZ-W85 10.0-25.8 PUHZ-W112 14.4-27.7 PUHZ-HW112 14.4-27.7 PUHZ-HW140 17.9-27.7

Split model SUHZ-SW45 7.1-12.9

PUHZ-SW40 7.1-11.8 PUHZ-SW50 7.1-17.2 PUHZ-FRP71 11.5-22.9 PUHZ-SW75 10.2-22.9 PUHZ-SW100 14.4-27.7 PUHZ-SW120 20.1-27.7 PUHZ-SHW80 10.2-22.9 PUHZ-SHW112 14.4-27.7 PUHZ-SHW140 17.9-27.7 PUMY-P112 17.9-27.7 PUMY-P125 17.9-27.7 PUMY-P140 17.9-27.7

Water Circulation Pump Characteristics

EHSC series

External static pressure [kPa]

Flow rate [L/min]

Speed 5 (Default setting) Speed 4 Speed 3 Speed 2 Speed 1

* For installation of EHPX series, set its pump speed with a pressure drop between

the hydrobox and the outdoor unit factored into the external static pressure.

EHSD series

Flow rate [L/min]

ERSC series

Flow rate [L/min]

External static pressure [kPa]

ERSD series

Flow rate [L/min]

External static pressure [kPa]

EHPX series

Flow rate [L/min]

External static pressure [kPa]

Speed 5 (Default setting) Speed 4 Speed 3 Speed 2 Speed 1

Page 16

Installation

Factory-fitted pressure relief valve (G1/2” female connection)

Discharge to drain (pipe MUST be tted by installer).

Safety Device Connections

The hydrobox contains a pressure relief valve. (see <Figure 4.3.10>) The connection size is G1/2” female. The installer MUST connect appropriate discharge pipework from this valve in accordance with local and national regulations. Failure to do so will result in discharge from the pressure relief valve directly into the hydrobox and cause serious damage to the product.

All pipework used should be capable of withstanding discharge of hot water. Relief valves should NOT be used for any other purpose, and their discharges should terminate in a safe and appropriate manner in accordance with local regulation requirements.

Note: Beware that the manometer and the pressure relief valve are NOT

strained on its capillary side and on its inlet side respectively. If a pressure relief valve is added, it is essential that no check valve or isolation valve is tted between the hydrobox connection and the added pressure relief valve (safety matter).

Piping diagram for 2-zone temperature control

Connect the pipe work and locally supplied parts according to the relevant circuit diagram shown in Section 3. Technical Information, of this manual. For more details on wiring, refer to “5.3 Wiring for 2-zone temperature controls”.

Note: Do not install the thermistors on the mixing tank. This could affect

correct monitoring of ow and return temperatures through each zone. Install the Zone2 ow temp. thermistor (THW8) near the mixing valve.

ECB1

TB1

ECB1

Breaker abbreviation Meaning

ECB1 Earth leakage circuit breaker for booster heater TB1 Terminal block 1

4.4 Electrical Connection

All electrical work should be carried out by a suitably qualied technician. Failure to comply with this could lead to electrocution, re, and death. It will also invalidate product warranty. All wiring should be according to national wiring regulations.

The hydrobox can be powered in two ways.

1. Power cable is run from the outdoor unit to the hydrobox.

2. Hydrobox has independent power source.

Connections should be made to the terminals indicated in the gures to the left below depending on the phase.

Booster heater and immersion heater should be connected independently from one another to dedicated power supplies.

Locally supplied wiring should be inserted through the inlets situated on the

base of the hydrobox. (Refer to <Table 3.3>.)

Wiring should be fed down the left hand side of the control and electrical box

and clamped in place using clips provided.

The wires should be inserted individually through the cable inlets as below.

Power line (B.H.) Power line (I.H.) (option) Indoor-Outdoor wire Output wires Signal input wires

Wireless receiver (option) wire

(PAR-WR51R-E) Connect the outdoor unit – hydrobox connecting cable to TB1. Connect the power cable for the booster heater to ECB1.

2 4 5

1 3 6

• Make sure that ECB1 is ON.

<1 phase> <3 phase>

C D

Page 17

TB1

ECB1

Earth

leakage

circuit

breaker

*1, *2

Outdoor unit

Power supply ~/N 230 V 50 Hz

Wiring

circuit

breaker or

Isolating

switch

To control board

For booster heater (Primary circuit)

Hydrobox

Wiring circuit

breaker or

Isolating

switch

Power supply ~/N 230 V 50 Hz

TB1

ECB1

Earth

leakage

circuit

breaker

*1, *2

Outdoor unit

Power supply 3~ 400 V 50 Hz (EH**-YM9(E)C) 3~ 230 V 50 Hz (EHSC-TM9C)

Wiring circuit

breaker or

Isolating

switch

To control board

For booster heater (Primary circuit)

Hydrobox

Wiring

circuit

breaker or

Isolating

switch

Power supply 3N~ 400 V 50 Hz

Installation

Option 1: Hydrobox powered via outdoor unit

<1 phase>

Electrical connections 1 phase

Description Power supply Capacity Breaker Wiring

Booster heater (Primary circuit) ~/N 230 V 50 Hz

2 kW 16 A *2 2.5 mm² 6 kW 32 A *2 6.0 mm²

*1 If the installed earth leakage circuit breaker does not have an over-current protection function, install a breaker with that function along the same power line.

<3 phase>

Electrical connections 3 phase

Description Power supply Capacity Breaker Wiring

Booster heater (Primary circuit)

3~ 400 V 50 Hz 9 kW 16 A *2 2.5 mm² 3~ 230 V 50 Hz 9 kW 32 A *2 6.0 mm²

Wiring

Wiring No.

× size (mm²)

Hydrobox - Outdoor unit *3 3 × 1.5 (polar)

Hydrobox - Outdoor unit earth *3 1 × Min. 1.5

Circuit

rating

Hydrobox - Outdoor unit S1 - S2 *4 230 V AC

Hydrobox - Outdoor unit S2 - S3 *4 24 V DC

*2. A breaker with at least 3.0 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).

The breaker shall be provided to ensure disconnection of all active phase conductors of the supply.

*3. Max. 45 m

If 2.5 mm² used, Max. 50 m If 2.5 mm² used and S3 separated, Max. 80 m

*4. The values given in the table above are not always measured against the ground value.

Notes: 1. Wiring size must comply with the applicable local and national codes.

2. Indoor unit/outdoor unit connecting cords shall not be lighter than polychloroprene sheathed exible cord. (Design 60245 IEC 57) Indoor unit power supply cords shall not be lighter than polychloroprene sheathed exible cord. (Design 60227 IEC 53)

3. Install an earth longer than other cables.

4. Please keep enough output capacity of power supply for each heater. Insufcient power supply capacity might cause chattering.

*1 If the installed earth leakage circuit breaker does not have an over-current protection function, install a breaker with that function along the same power line.

Afx label A that is included with the manuals near each wiring diagram for hydrobox and outdoor units.

Page 18

CN01

TB1

ECB1

For booster heater (Primary circuit)

To control board

Outdoor unit

Wiring circuit

breaker or

Isolating

switch

Earth

leakage

circuit

breaker

*1, *2

Power supply ~/N 230 V 50 Hz

Earth

leakage

circuit

breaker

*1, *2

Wiring circuit

breaker or

Isolating

switch

Wiring circuit

breaker or

Isolating

switch

Power supply ~/N 230V 50Hz

Hydrobox

Initial settings

(Power supplied

by outdoor unit)

Modied settings (Separate power

supply to

the hydrobox)

BLACK

YELLOW

BLACK

YELLOW

BLACK

Hydrobox

control board

White

TB1

ECB1

Earth

leakage

circuit

breaker

*1, *2

Outdoor unit

Power supply 3N~ 400 V 50 Hz

Wiring circuit

breaker or

Isolating

switch

To control board

For booster heater (Primary circuit)

Hydrobox

Wiring circuit

breaker or

Isolating

switch

Power supply ~/N 230 V 50 Hz

Earth

leakage

circuit

breaker

*1, *2

Wiring circuit

breaker or

Isolating

switch

Power supply 3~ 400 V 50 Hz (EH**-YM9(E)C) 3~ 230 V 50 Hz (EHSC-TM9C)

Hydrobox

control board

Installation

Hydrobox power supply ~/N 230 V 50 Hz Hydrobox input capacity

Main switch (Breaker)

16 A

Wiring

Wiring No.

× size (mm²)

Hydrobox power supply 2 × Min. 1.5 Hydrobox power supply earth 1 × Min. 1.5 Hydrobox - Outdoor unit *3 2 × Min. 0.3 Hydrobox - Outdoor unit earth —

Circuit

rating

Hydrobox L - N *4 230 V AC Hydrobox - Outdoor unit S1 - S2 *4 — Hydrobox - Outdoor unit S2 - S3 *4 24 V DC

Notes: 1. Wiring size must comply with the applicable local and national codes.

3. Install an earth longer than other cables.

4. Please keep enough output capacity of power supply for each heater. Insufcient power supply capacity might cause chattering.

Option2: Hydrobox powered by independent source

If the hydrobox and outdoor units have separate power supplies, the following requirements MUST be carried out:

• Change connector connections in hydrobox control and electrical box (see Figure 4.4.4).

• Turn the outdoor unit DIP switch SW8-3 to ON.

• Turn on the outdoor unit BEFORE the hydrobox.

• Power by independent source is not available for particular models of outdoor unit model. For more detail, refer to the connecting outdoor unit installation manual.

<1 phase>

Electrical connections 1 phase

*1 If the installed earth leakage circuit breaker does not have

an over-current protection function, install a breaker with that function along the same power line.

<3 phase>

Electrical connections 3 phase

*1 If the installed earth leakage circuit breaker does not have

an over-current protection function, install a breaker with that function along the same power line.

*2. A breaker with at least 3.0 mm contact separation in each pole shall be

provided. Use earth leakage breaker (NV). The breaker shall be provided to ensure disconnection of all active

phase conductors of the supply. *3. Max. 120 m *4. The values given in the table above are not always measured against

the ground value.

Afx label B that is included with the manuals near each wiring diagram for hydrobox and outdoor units.

Description Power supply

Capacity Breaker

Wiring

Booster heater (Primary circuit)

3~ 400 V 50 Hz 9 kW 16 A *2 2.5 mm² 3~ 230 V 50 Hz 9 kW 32 A *2 6.0 mm²

Description Power supply

Capacity Breaker

Wiring

Booster heater (Primary circuit)

~/N 230 V 50 Hz

2 kW 16 A *2 2.5 mm² 6 kW 32 A *2 6.0 mm²

Page 19

System Set Up

5.1 DIP Switch Functions

Located on the FTC printed circuit board are 5 sets of small white switches known as DIP switches. The DIP switch number is printed on the circuit board next to the relevant switches. The word ON is printed on the circuit board and on the DIP switch block itself. To move the switch you will need to use a pin or the corner of a thin metal ruler or similar.

DIP switch settings are listed below in Table 5.1.1. Only an authorised installer can change DIP switch setting under one’s own responsibility according to the installation condition. Make sure to turn off both indoor unit and outdoor unit power supplies before changing the switch settings.

DIP switch Function OFF ON

Default settings:

Indoor unit model

SW1

SW1-1 Boiler WITHOUT Boiler WITH Boiler OFF SW1-2 Heat pump maximum outlet water temperature 55ºC 60ºC ON *1 SW1-3 DHW tank WITHOUT DHW tank WITH DHW tank OFF SW1-4 Immersion heater WITHOUT Immersion heater WITH Immersion heater OFF

SW1-5 Booster heater WITHOUT Booster heater WITH Booster heater

OFF: E***-M*C ON : E***-*M2/6/9C

SW1-6 Booster heater function For heating only For heating and DHW

OFF: E***-M*C ON : E***-*M2/6/9C

SW1-7 Outdoor unit type Split type Packaged type

OFF: E*S*-*M*C ON : EHPX-*M*C

SW1-8 Wireless remote controller WITHOUT Wireless remote controller WITH Wireless remote controller OFF

SW2

SW2-1 Room thermostat1 input (IN1) logic change

Zone1 operation stop at thermostat short Zone1 operation stop at thermostat open

OFF

SW2-2 Flow switch1 input (IN2) logic change Failure detection at short Failure detection at open OFF

SW2-3 Booster heater capacity restriction Inactive Active

OFF: Except E***-VM2*C ON : E***-VM2*C

SW2-4 Cooling mode function Inactive Active

OFF: Except ERS*-*M**C ON : ERS*-*M**C

SW2-5

Automatic switch to backup heat source operation (When outdoor unit stops by error)

Inactive Active *2 OFF

SW2-6 Mixing tank WITHOUT Mixing tank WITH Mixing tank OFF

SW2-7 2-zone temperature control Inactive Active *6 OFF

SW2-8 Flow sensor WITHOUT Flow sensor WITH Flow sensor ON

SW3

SW3-1 Room thermostat 2 input (IN6) logic change

Zone2 operation stop at thermostat short Zone2 operation stop at thermostat open

OFF SW3-2 Flow switch 2 input (IN3) logic change Failure detection at short Failure detection at open OFF SW3-3 Flow switch 3 input (IN7) logic change Failure detection at short Failure detection at open OFF SW3-4 Electric energy meter WITHOUT Electric energy meter WITH Electric energy meter OFF SW3-5 Heating mode function *3 Inactive Active ON SW3-6 2-zone valve ON/OFF control Inactive Active OFF SW3-7 Heat exchanger for DHW Coil in tank External plate HEX OFF SW3-8 Heat meter WITHOUT Heat meter WITH Heat meter OFF

SW4

SW4-1 Multiple outdoor units control Inactive Active OFF SW4-2 Position of multiple outdoor units control *7 Slave Master OFF SW4-3 — — — OFF SW4-4

Indoor unit only operation (during installation work) *4

Inactive Active OFF

SW4-5 Emergency mode (Heater only operation) Normal

Emergency mode (Heater only operation)

OFF *5 SW4-6 Emergency mode (Boiler operation) Normal Emergency mode (Boiler operation) OFF *5

SW5

SW5-1 — — — OFF SW5-2 Advanced auto adaptation Inactive Active ON SW5-3 SW5-4 SW5-5 SW5-6 SW5-7 SW5-8 — — — OFF

Note: *1.

When the hydrobox is connected with a PUMY-P/SUHZ-SW outdoor unit of which maximum outlet water temperature is 55ºC, DIP SW1-2 must be changed to OFF.

*2. OUT11 will be available. For safety reasons, this function is not available for certain errors. (In that case, system operation must be stopped and only

the water circulation pump keeps running.)

*3 This switch functions only when the hydrobox is connected with a PUHZ-FRP outdoor unit. When another type of outdoor unit is connected, the

heating mode function is active regardless of the fact that this switch is ON or OFF. *4. Space heating and DHW can be operated only in indoor unit, like an electric boiler. (Refer to “5.5 Indoor unit only operation”. ) *5. If emergency mode is no longer required, return the switch to OFF position. *6. Active only when SW3-6 is set to OFF. *7. Active only when SW4-1 is set to ON.

SW1

SW3

SW4

SW2

SW5

SW5-3 SW5-4 SW5-5 SW5-6 SW5-7 E*SC-*M*C ON ON ON ON OFF E*SD-*M*C ON OFF OFF ON OFF

EHPX-*M*C OFF OFF OFF OFF OFF

Capacity code

Page 20

1 3

CN3C

(BLU)

1 3

CNPWM

(WHT)

LED1

LED2

LED3

LED4

CN108

CNRF (WHT)

CN105 (RED)

TBO.1

TBO.2

TBO.3

TBO.4

CNP1 (WHT)

CNP4 (RED)

CNV1 (WHT)

CN22 (BLU)

CNIT (BLU)

CN01 (WHT)

F2 F1

6.3A 250V 10A 250V

SW1

SW2

SW3

SW4

SW5

1 3

1 2 3 4 5 6

1 2 3 4 5 6 7 8

1 2 3 4 5 6

1 2 4 6

CNBH (WHT)

CNBC (GRY)

1 2

CNBHT

(BLK)

1 3

CNIH (ORN)

1 3

CNW5 (WHT)

CN21 (YLW)

CNW12

(RED)

CN20 (RED)

TBI.2

126 10148

137 11945321

TBI.3

2 4 6 8 10 12 14

357 9

CN1A

(WHT)

2 4 6 8 10 12 14

357 9

TBI.1

System Set Up

5.2 Connecting inputs/outputs

When the wires are wired to adjacent terminals use ring terminals and insulate the wires.

FTC

Signal inputs

Item Name Model and specications

Signal input function

Signal input wire

Use sheathed vinyl coated cord or cable. Max. 30 m Wire type: CV, CVS or equivalent Wire size: Stranded wire 0.13 mm² to 1.25 mm²

Solid wire: ø0.4 mm to ø1.2 mm

Switch Non-voltage “a” contact signals

Remote switch: minimum applicable load 12V DC, 1mA

Wiring specication and local supply parts

Thermistor inputs

Name Terminal block Connector Item Optional part model

TH1 — CN20 Thermistor (Room temp.) (Option) PAC-SE41TS-E TH2 — CN21 Thermistor (Ref. liquid temp.) — THW1 — CNW12 1-2 Thermistor (Flow water temp.) — THW2 — CNW12 3-4 Thermistor (Return water temp.) — THW5 — CNW5 Thermistor (DHW tank water temp.) (Option) *1 PAC-TH011TK-E (5 m) / PAC-TH011TKL-E (30 m) THW6 TBI.2 3-4 — Thermistor (Zone1 ow water temp.) (Option) *1

PAC-TH011-E

THW7 TBI.2 5-6 — Thermistor (Zone1 return water temp.) (Option) *1 THW8 TBI.2 7-8 — Thermistor (Zone2 ow water temp.) (Option) *1

PAC-TH011-E

THW9 TBI.2 9-10 — Thermistor (Zone2 return water temp.) (Option) *1 THWB1 TBI.2 11-12 — Thermistor (Boiler ow water temp.) (Option) *1

PAC-TH011HT-E

THWB2 TBI.2 13-14 — Thermistor (Boiler return water temp.) (Option) *1

Ensure to wire thermistor wirings away from the power line and/or OUT1 to 15 wirings. *1. The maximum length of the thermistor wiring is 30 m. When the wires are wired to adjacent terminals, use ring terminals and insulate the wires.

The length of the optional thermistors are 5 m. If you need to splice and extend the wirings, following points must be carried out.

1) Connect the wirings by soldering.

2) Insulate each connecting point against dust and water.

Name Terminal block Connector Item OFF (Open) ON (Short)

IN1 TBI.1 13-14 — Room thermostat 1 input *1 Refer to SW2-1 in <5.1 DIP Switch Functions>. IN2 TBI.1 11-12 — Flow switch 1 input Refer to SW2-2 in <5.1 DIP Switch Functions>. IN3 TBI.1 9-10 — Flow switch 2 input (Zone1) Refer to SW3-2 in <5.1 DIP Switch Functions>. IN4 TBI.1 7-8 — Demand control input Normal Heat source OFF/ Boiler operation *3 IN5 TBI.1 5-6 — Outdoor thermostat input *2 Standard operation Heater operation/ Boiler operation *3 IN6 TBI.1 3-4 — Room thermostat 2 input *1 Refer to SW3-1 in <5.1 DIP Switch Functions>. IN7 TBI.1 1-2 — Flow switch 3 input (Zone2) Refer to SW3-3 in <5.1 DIP Switch Functions>. IN8 TBI.3 1-2 — Electric energy meter 1

*4IN9 TBI.3 3-4 — Electric energy meter 2 IN10 TBI.3 5-6 — Heat meter IN11 TBI.3 7-8 —

Smart grid ready input *5

IN12 TBI.3 9-10 — IN1A TBI.3 12-14 CN1A Flow sensor — —

*1. Set the ON/OFF cycle time of the room thermostat for 10 minutes or more; otherwise the compressor may be damaged. *2. If using outdoor thermostat for controlling operation of heaters, the lifetime of the heaters and related parts may be reduced. *3. To turn on the boiler operation, use the main remote controller to select “Boiler” in “External input setting“ screen in the service menu. *4. Connectable electric energy meter and heat meter

● Pulse type Voltage free contact for 12VDC detection by FTC (TBI.3 1, 3 and 5 pins have a positive voltage.)

● Pulse duration Minimum ON time: 40ms Minimum OFF time: 100ms

● Possible unit of pulse 0.1 pulse/kWh 1 pulse/kWh 10 pulse/kWh 100 pulse/kWh 1000 pulse/kWh

Those values can be set by the main remote controller. (Refer to the menu tree in "5.10 Main remote controller".)

*5. As for the smart grid ready, refer to "5.6 Smart grid ready".

Page 21

OUT8

OUT13

1 2

TBO.1

1 2

TBO.2 TBO.3

1 2

6 7 8

1 2

TBO.4

LLL NNN

OUT1 OUT2 OUT3

N L N L

OUT5

OUT4

L N L N L

OUT10 OUT11 OUT12 OUT15

OUT9Close Open

System Set Up

Note:

1. When the hydrobox is powered via outdoor unit, the maximum grand total current of (a)+(b) is 3.0 A.

2. Do not connect multiple water circulation pumps directly to each output (OUT1, OUT2, and OUT3). In such a case, connect them via (a) relay(s).

3. Do not connect water circulation pumps to both TBO.1 1-2 and CNP1 at the same time.

4. Connect an appropriate surge absorber to OUT10 (TBO.3 1-2) depending on the load at site.

5. Stranded wire should be processed with insulation-covered bar terminal (DIN46228-4 standard compatible type).

Item Name Model and specications

External output function Outputs wire

Use sheathed vinyl coated cord or cable. Max. 30 m Wire type: CV, CVS or equivalent Wire size: Stranded wire 0.25 mm² to 1.5 mm²

Solid wire: 0.25 mm² to 1.5 mm²

Wiring specication and local supply parts

Outputs

Name Terminal block Connector Item OFF ON Signal/Max. current Max. total current

OUT1 TBO.1 1-2 CNP1 Water circulation pump 1 output

(Space heating/cooling & DHW)

OFF ON 230V AC 1.0A Max.

4.0A (a)

OUT2 TBO.1 3-4 — Water circulation pump 2 output

(Space heating/cooling for Zone1)

OFF ON 230V AC 1.0A Max.

OUT3 TBO.1 5-6 — Water circulation pump 3 output

(Space heating/cooling for Zone2) *1

OFF ON 230V AC 1.0A Max.

2-way valve 2b output *2 OUT14 — CNP4 Water circulation pump 4 output (DHW) OFF ON 230V AC 1.0A Max. OUT4 TBO.2 4-6 CNV1 3-way valve (2-way valve 1) output Heating DHW 230V AC 0.1A Max.

3.0A (b)

OUT5

TBO.2 1-2

— Mixing valve output *1 Stop

230V AC 0.1A Max.

TBO.2 2-3 Open OUT6 — CNBH 1-3 Booster heater 1 output OFF ON 230V AC 0.5A Max. (Relay) OUT7 — CNBH 5-7 Booster heater 2 output OFF ON 230V AC 0.5A Max. (Relay) OUT8 TBO.4 5-6 — Cooling signal output OFF ON 230V AC 0.5A Max. OUT9 TBO.4 3-4 CNIH Immersion heater output OFF ON 230V AC 0.5A Max. (Relay) OUT11 TBO.3 3-4 — Error output Normal Error 230V AC 0.5A Max. OUT12 TBO.3 5-6 — Defrost output Normal Defrost 230V AC 0.5A Max. OUT13 TBO.4 1-2 — 2-way valve 2a output *2 OFF ON 230V AC 0.1A Max. OUT15 TBO.3 7-8 — Comp ON signal OFF ON 230V AC 0.5A Max.

OUT10 TBO.3 1-2 — Boiler output OFF ON

non-voltage contact

· 220-240V AC (30V DC)

0.5A or less

· 10mA 5V DC or more

—

Do not connect to the terminals that are indicated as “—” in the “Terminal block” eld. *1 For 2-zone temperature control. *2 For 2-zone valve ON/OFF control.

Tool

Conductor

Outline view Top view

How to use TBO.1 to 4

Connect them using either way as shown above.

5.3 Wiring for 2-zone temperature control

1. Water circulation pump 2 (Zone1 water circulation pump) / Water circulation pump 3 (Zone2 water circulation pump) Electrically wire water circulation pumps 2 and 3 to the appropriate output terminals. (Refer to “Outputs” in 5.2.)

2. Flow switch 2 (Zone1 ow switch) / Flow switch 3 (Zone2 ow switch) Connect ow switches 2 and 3 to the appropriate terminals. (Refer to “Signal inputs” in 5.2.) Set DIP switches 3-2 and 3-3 according to the functions of individual ow switches 2 and 3. (Refer to “DIP switch functions” in 5.1.)

3. Thermistor

Connect the thermistor to monitor the Zone1 ow temperature to the THW6 (TBI. 2-3 and 2-4) terminals. Connect the thermistor to monitor the Zone1 return temperature to the THW7 (TBI. 2-5 and 2-6) terminals. Connect the thermistor to monitor the Zone2 ow temperature to the THW8 (TBI. 2-7 and 2-8) terminals. Connect the thermistor to monitor the Zone2 return temperature to the THW9 (TBI. 2-9 and 2-10) terminals.

The maximum length of the thermistor wiring is 30 m. The length of the optional thermistors are 5 m. If you need to splice and extend the wirings, following points must be carried out.

1) Connect the wirings by soldering.

2) Insulate each connecting point against dust and water.

4. Motorized mixing valve

Connect three wires coming from the motorized mixing valve to the appropriate terminals referring to “Outputs” in 5.2.

Note: Connect the signal line to open Port A (hot water inlet port) to TBO. 2-3 (Open), the signal line to open

Port B (cold water inlet port) to TBO. 2-1 (Close) , and the neutral terminal wire to TBO. 2-2 (N).

N L

FTC

TBO.2

1 2

Close N Open

from mixing tank

to mixing tank

to Zone2 heat emitter

from Zone2 heat emitter

Motorized mixing valve

Page 22

7 8

TBI.3

IN11 IN12

System Set Up

2. DIP switch

Turn DIP switch 3-6 ON.

3. 2-way valve 2a (for Zone1) / 2-way valve 2b (for Zone2)

Electrically wire 2-way valve 2a and 2b to the appropriate external output terminals. (Refer to "External outputs" in 5.2)

5.4 2-zone valve ON/OFF control

5.5 Indoor unit only operation (during installation work)

1. Pipe work

1. Zone1 2-way valve 2a (local supply)

2. Zone2 2-way valve 2b (local supply)

3. Water circulation pump 2 (local supply) *1

4. By-pass valve (local supply) *2

*1 Install according to system in the eld. *2 For safety protection, it is recommended to install a by-pass valve.

Note: 1. Freeze stat function is deactivated whilst this control is ON.

Use anti-freeze solution to avoid freezing, if necessary.

2. When mixing tank and DHW tank are installed, install a 3-way valve (OUT4) in the primary water circuit.

4. Room thermostat connection

Opening /closing 2-way valve provides a simple 2-Zone control. Flow temperature is common for Zone1 and 2.

In the case when DHW or heating operation is required prior to connection of the outdoor unit; i.e. during installation work, an electric heater in indoor unit (*1) can be used. *1 Model with electric heater only.

1. To start operation

● Check if the indoor unit power supply is OFF, and turn DIP switch 4-4 and 4-5 ON.

● Turn ON the indoor unit power supply.

2. To end operation *2

● Turn OFF the indoor unit power supply.

● Turn DIP switch 4-4 and 4-5 OFF. *2 When the indoor unit only operation is ended, ensure to check over the settings after outdoor unit is connected.

Note: Prolonged running of the this operation may affect the life of the electric heater.

Heating operation mode Zone1 Zone2

Room temp. control (Auto adaptation) *3

● Wireless remote controller (option)

● Room temperature thermistor (option)

● Main remote controller (remote position)

● Wireless remote controller (option)

Compensation curve or ow temp. control ● Wireless remote controller (option) *4

● Room temperature thermostat (local supply)

● Wireless remote controller (option) *4

● Room temperature thermostat (local supply)

*3 Ensure to install the room thermostat for Zone1 in main room since the Room temp. control for Zone1 is prioritized. *4 The wireless remote controller can be used as a thermostat.

Zone1

Zone2

In DHW or heating operation, the commands in the table below can be used.

IN11 IN12 Meaning

OFF (open) OFF (open) Normal operation ON (short) OFF (open) Switch-on recommendation*1 OFF (open) ON (short) Switch-off command ON (short) ON (short) Switch-on command*2

Note:

• To activate this function, settings on the main remote controller are required. (Main menu → Service → “Function settings” Ref. add: 0, Unit: 1)

• Heating operation mode (compensation curve or ow temp. control) requires

the optional wireless remote controller.

*1 Switch-on recommendation has following 2 modes:

Mode 7 Hot water operation

Additional boost temperature is added onto the usual DHW target temperature. (1-Inactive (default) /2-Target temp. +3°C/3-Target temp. +5°C)

Mode 8 Heating operation

Heating ON (permitted heating with thermo ON) range is extended. (1-Inactive (default ) /2-Thermo ON temp. +2°C/3-Thermo ON temp. +3°C)

*2 Switch-on command has following 2 modes:

Hot water operation

With electrical heater or DIP SW 1-2 ON → Target temp. : 60°C Without electrical heater and DIP SW 1-2 OFF → Target temp. : 55°C

Heating operation

Heating is ALWAYS permitted.

5.6 Smart grid ready

Page 23

TBO.2 4-5

TBO.4 1-2

DIP-SW1

Connector CNW5

System Set Up

WARNING: When connecting DHW tank

(1) Attach the optional thermistor THW5 (PAC-TH011TK-E / PAC-TH011TKL-E). (2) Always use earth leakage breaker when connecting immersion heater. (3) When installing an immersion heater, be sure that the immersion heater has a built-in direct cut-off thermostat. (4) Connect a pressure relief valve on the sanitary water side. (5) It is essential that no check valve or isolating valve is tted between the hydrobox and the pressure relief valve.

5.7 Installation procedure for DHW tank

Note:

• Be aware that the respective DHW operations are greatly effected by the selections of the components such as tank, immersion heater, or the like.

• Follow your local regulations to perform system conguration.

1. To enable switching of the water circulation circuit between the DHW mode

and the heating mode, install a 3-way valve (local supply). The 3-way valve and the DHW tank should be positioned as shown in the system diagram on the page 6, Figure 3.4 or 3.5 as applicable. The use of two 2-way valves can perform the same function as a 3-way valve.

2. Install the optional thermistor THW5 (optional part PAC-TH011TK-E/PAC-

TH011TKL-E) on the DHW tank. It is recommended to position the thermistor at the mid point of the DHW tank capacity. Insulate thermistor from ambient air. Especially for double (insulated) tank, thermistor should be attached to the inner side (to detect the water temperature).

3. Connect the thermistor lead to the CNW5 connector on the FTC.

If the thermistor lead is too long bundle it with a strap to adjust the length.

4. The output terminals for the 3-way valve is TBO.2 4-5 (OUT4).

The TBO.2 4-5 terminals on the FTC are shown in the wiring diagram on Page

20. Choose the terminals that the 3-way valve is connected to between TBO.2 4-5, or TBO.2 4-6, according to the rated voltage. When the rated current of the 3-way valve exceeds 0.1A, be sure to use a relay with maximum voltage and current ratings of 230V AC / 0.1A when connecting to the FTC. Do not directly connect the 3-way valve cable to the FTC. Connect the relay cable to the TBO.2 4-5 terminals. 3-way valve must be of SPST type. SPDT type can NOT be used. For systems using 2-way valves instead of a 3-way valve please read the following;

Specication of 2-way valve (local supply)

• Power supply: 230V AC

• Current: 0.1A Max. (If over 0.1A you must use a relay)

• Type: Normally closed Installation

position

Electrical connection terminal block

Output signal Heating DHW System

OFF

2-way valve1 DHW TBO.2 4-5 OFF

(closed)

ON (open)

OFF (closed)

2-way valve2 Heating TBO.4 1-2 ON

(open)

OFF (closed)

Note: Should the 2-way valve become blocked the water circulation will stop.

A by-pass valve or circuit should be installed between pump and 2-way valve for safety. The TBO.4 1-2 terminals on the FTC are shown in the wiring diagram. The 2-way valve (local supply) should be installed according to the instructions supplied with it. Follow 2-way valve’s manufacturer’s instructions as to whether to connect an earth cable or not.

• For the 2-way valve, choose the one that slowly opens and shuts off to prevent water hammer sound.

• Choose the 2-way valve equipped with manual override, which is necessary for topping up or draining of water.

5. Turn the DIP SW1-3 on the FTC to ON.

6. When using an immersion heater (local supply), connect a contact relay cable for the immersion heater to TBO.4 3-4 (OUT9), and turn the DIP SW1-4 to ON. Do NOT directly connect the power cable to the FTC.

Note:

• When an immersion heater is installed, select appropriate breaker capacity and a cable with appropriate diameter on the basis of heater output.

• When wiring an immersion heater in the eld, always install an earth leakage breaker to prevent accidental electric shock.

Page 24

DHW tank

Immersion

heater

Booster

heater

BH function System diagram Thermistor

Present Absent Present For space heating/

cooling and DHW

THW1: Flow water temp. THW2: Return water temp. THW5: Tank water temp.

(optional part PAC-TH011TK-E / PAC-TH011TKL-E)

Present Present Present For space heating/

cooling and DHW

THW1: Flow water temp. THW2: Return water temp. THW5: Tank water temp.

(optional part PAC-TH011TK-E / PAC-TH011TKL-E)

*The use of two 2-way valves can perform same function as a 3-way valve.

THW5

THW1

THW2

THW1

THW2

THW5

DHW tank

Heat emitter

Hydrobox

Booster heater

Immersion heater

Heat emitter

Hydrobox

Booster heater

3-way valve (*)

System Set Up

Recommended DHW system

Where system involves a DHW tank:

Page 25

FTC

20.0°C

FTC

20.0°C

FTC

Outdoor unit

Wireless receiver (option)

Main remote

controller

Wireless remote controller (option)

Main remote

controller

Main remote

controller

Main remote controller (remote position)

Max. 8

Room

Hydrobox

Room

Room temperature thermistor (option)

Hydrobox Room

Room temperature thermostat (local supply)

Hydrobox

Room

System Set Up

5.8 Remote Controller Options

The hydrobox comes factory tted with a main remote controller. This incorporates a thermistor for temperature monitoring and a graphical user interface to enable set-up, view current status and input scheduling functions. The main remote controller is also used for servicing purposes. This facility is accessed via password protected service menus.

To provide the best efciency Mitsubishi Electric recommends using automatic adaptation function based on room temperature. To use this function a room thermistor needs to be present in a main living area. This can be done in a number of ways the most convenient are detailed below.

Refer to heating section of this manual for instructions on how to set compensation curve, Flow temp. or Room temp. (Auto adaptation). For instructions on how to set the thermistor input for the FTC please refer to Initial settings section.

The factory setting for space heating mode is set to Room temp. (auto adaptation). If there is no room sensor present in the system, this setting must be changed to either Compensation curve mode or Flow temp. mode.

Note: Auto-adaptation is not available in Cooling mode.

Factory supplied standard

Outdoor unit

Hydrobox

1-zone temperature control

Control option A

This option features the main remote controller and the Mitsubishi Electric wireless remote controller. The wireless remote controller is used to monitor room temperature and can be used to make changes to the space heating settings, boost DHW (*1) and switch to holiday mode without having to directly use the main remote controller.

If more than one wireless remote controller is used, the most recently requested temperature setting will commonly be applied to all rooms by the central control system regardless of which wireless remote controller was used. No hierarchy exists across these remote controllers.

Control option B

This option features the main remote controller and the Mitsubishi Electric thermistor wired to FTC. The thermistor is used to monitor room temperature but can not make any changes in control operation. Any changes to DHW (*1) must be made using the main remote controller mounted on the hydrobox.

Wire the thermistor to the TH1 connector on FTC. The number of room temperature thermistors that can be connected to FTC is always one.

Control option C

This option features the main remote controller being removed from the hydrobox and situated in a different room. A thermistor built in the main remote controller can be used for monitoring the room temperature for Auto Adaptation function whilst keeping all its features of the main remote controller available.

The main remote controller and FTC are connected by a 2-core, 0.3 mm², non-polar cable (local supply) with a maximum length of 500 m.

To use the sensor in the main remote controller the main remote controller should come off from the hydrobox. Otherwise it will detect the temperature of the hydrobox instead of room temperature. This will affect the output of the space heating.

Note: Wiring for main remote controller cable shall be (5 cm or more) apart from power source

wiring so that it is not inuenced by electrical noise from power source wiring. (Do NOT insert main remote controller cable and power source wiring in the same conduit.)

Control option D (Flow temp. or compensation curve only)

This option features the main remote controller and a locally supplied thermostat wired to FTC. The thermostat is used to set the maximum temperature for heating room. Any changes to DHW (*1) must be made using main remote controller mounted on the hydrobox.

The thermostat is wired to IN1 in TBI.1 on FTC. The number of thermostats that can be connected to FTC is always one.

The wireless remote controller can be also used as a thermostat.

*1 If applicable

Page 26

FTC

20.0°C

Room temperature thermistor (option)

Room temperature thermostat (local supply)

Main remote

controller

Outdoor unit

Zone1: Room temp. control (Auto adaptation) Zone2: Compensation curve or ow temp. control

Hydrobox

Zone1

Zone2

FTC

20.0°C

Main remote controller (remote position)

Room temperature thermostat (local supply)

Zone1: Room temp. control (Auto adaptation) Zone2: Compensation curve or ow temp. control

Zone2

Zone1

Hydrobox

Outdoor unit

20.0°C

FTC

Main remote

controller

Outdoor unit

Room temperature thermostat (local supply)

Hydrobox

Zone2

Zone1

Zone1, Zone2: Compensation curve or ow temp. control

FTC

20.0°C

Room temperature thermostat (local supply)

Wireless receiver (option)

Wireless remote controller (option)

Outdoor unit

Main remote

controller

Zone1

Zone2

Max. 8

Zone1: Room temp. control (Auto adaptation) Zone2: Compensation curve or ow temp. control

Hydrobox

System Set Up

2-zone temperature control

Control option A

This option features the main remote controller, the Mitsubishi Electric wireless remote controller and a locally supplied thermostat. The wireless remote controller is used to monitor the Zone1 room temperature and the thermostat is used to monitor the Zone2 room temperature. The thermostat can be also allocated to Zone1 and the wireless remote controller to Zone2.

The wireless remote controller can be also used to make changes to the space heating settings, boost DHW (*1) and switch to holiday mode without having to use the main remote controller.

If more than one wireless remote controller is used, the last temperature setting adjustment/demand will be applied to ALL rooms in same zone.

Wire the wireless receiver to FTC referring to the wireless remote controller instruction manual. Turn DIP SW1-8 to ON. Before operation congure the wireless remote controller to transmit and receive data referring to the wireless remote controller installation manual. The thermostat is used to set the maximum temperature for heating Zone2 room. The thermostat is wired to IN6 on FTC. (If the thermostat is allocated to Zone1, it is wired to IN1 on TBI.1.) (Refer to 5.2.)

Control option B

This option features the main remote controller, the Mitsubishi Electric thermistor and a locally supplied thermostat that are wired to FTC. The thermistor is used to monitor the Zone1 room temperature and the thermostat is used to control the Zone2 room temperature.

The thermostat can be also allocated to Zone1 and the thermistor to Zone2. The thermistor can not make any changes in control operation. Any changes to DHW (*1) must be made using the main remote controller mounted on the hydrobox. Wire the thermistor to the TH1 connector on FTC. The number of room temperature thermistors that can be connected to FTC is always one. The thermostat is used to set the maximum temperature for heating Zone2 room. The thermostat is wired to IN6 on FTC. (If the thermostat is allocated to Zone1, wire it to IN1 on TBI.1.) (Refer to 5.2.)

Control option C

This option features the main remote controller (with in-built thermistor) that is removed from the hydrobox to monitor the Zone1 room temperature and a locally supplied thermostat to monitor the Zone2 room temperature. The thermostat can be also allocated to Zone1 and the thermistor to Zone2.

A thermistor built into the main remote controller can be used for monitoring the room temperature for Auto Adaptation function whilst keeping all its features of the main remote controller available. The main remote controller and FTC are connected by a 2-core, 0.3 mm², non-polar cable (local supply) with a maximum length of 500 m. To use the sensor in the main remote controller the main remote controller should be detached from the hydrobox. Otherwise it will detect the temperature of the hydrobox instead of room temperature. This will affect the output of the space heating.

The thermostat is used to set the maximum temperature for heating Zone2 room. The thermostat is wired to IN6 on FTC. (If the thermostat is allocated to Zone1, wire it to IN1 on TBI.1.) (Refer to 5.2.)

Note: Wiring for main remote controller cable shall be (5 cm or more) apart from power

source wiring so that it is not inuenced by electrical noise from power source wiring. (Do NOT insert main remote controller cable and power source wiring in the same conduit.)

Control option D

This option features the locally supplied thermostats wired to FTC. The thermostats are individually allocated to Zone1 and Zone2. The thermostats are used to set each maximum temperature for heating Zone1 and Zone2 rooms. Any changes to DHW (*1) must be made using the main remote controller mounted on the hydrobox.

The thermostat for Zone1 is wired to IN1 in TBI.1 on FTC. The thermostat for Zone2 is wired to IN6 in TBI.1 on FTC.

*1 If applicable *2 For the options above, the sensor types can be exchanged between Zone1 and Zone2. (e.g. Wireless remote controller in Zone1 and Room temp. thermostat in Zone2

can be changed to Room temp. thermostat and wireless remote controller, respectively).

The wireless remote controller can be also used as a thermostat.

Page 27

System Set Up

(a) For insertion, push on the SD memory card until it clicks into place. (b) For ejection, push on the SD memory card until it clicks.

Note: To avoid cutting ngers, do not touch sharp edges of the SD

memory card connector (CN108) on the FTC control board.

Logos

Capacities

2 GB to 32 GB *2

SD speed classes

All

• The SD Logo is a trademark of SD-3C, LLC. The miniSD logo is a trademark of SD-3C, LLC. The microSD logo is a trademark of SD-3C, LLC.

*1 To edit main remote controller settings or to check operating data, an Ecodan

service tool (for use with PC) is required.

*2 A 2-GB SD memory card stores up to 30 days of operation logs.

2 GB

5.9 Using SD memory card

The hydrobox is equipped with an SD memory card interface in FTC. Using an SD memory card can simplify main remote controller settings and can store operating logs. *1

(1) Use an SD memory card that complies with the SD standards. Check that the

SD memory card has a logo on it of those shown to the right.

(2) SD memory cards to the SD standards include SD, SDHC, miniSD, micro SD,

and microSDHC memory cards. The capacities are available up to 32 GB. Choose that with a maximum allowable temperature of 55ºC.

(3) When the SD memory card is a miniSD, miniSDHC, microSD, or micro SDHC

memory card, use an SD memory card converter adapter.

(4) Before writing to the SD memory card, release the write-protect switch.

(5) Before inserting or ejecting an SD memory card, make sure to power off the

system. If an SD memory card is inserted or ejected with the system powered on, the stored data could be corrupted or the SD memory card be damaged. *An SD memory card is live for a short duration after the system is powered off. Before insertion or ejection wait until the LED lamps on the FTC control board are all off.

(6) The read and write operations have been veried using the following SD mem-

ory cards, however, these operations are not always guaranteed as the specications of these SD memory cards could change.

Manufacturer Model Tested in

Verbatim #44015 0912-61 Mar. 2012 SanDisk SDSDB-002G-B35 Oct. 2011 Panasonic RP-SDP04GE1K Oct. 2011 Arvato 2GB PS8032 TSB 24nm MLC Jun. 2012 Arvato 2GB PS8035 TSB A19nm MLC Jul. 2014 Lexar LSD8GBBBEU300 Rev B Sep. 2015

Before using a new SD memory card (including the card that comes with the unit), always check that the SD memory card can be safely read and written to by the FTC controller. <How to check read and write operations>

a) Check for correct wiring of power supply to the system. For more

details, refer to section 4.4.

(Do not power on the system at this point.) b) Insert an SD memory card. c) Power on the system. d) The LED4 lamp lights if the read and write operations are successfully

completed. If the LED4 lamp continues blinking or does not light, the SD

memory card cannot be read or written to by the FTC controller.

(7) Make sure to follow the instruction and the requirement of the SD memory

card’s manufacturer.

(8) Format the SD memory card if determined unreadable in step (6). This could

make it readable. Download an SD card formatter from the following site.

SD Association homepage: https://www.sdcard.org/home/ (9) FTC supports FAT le system but not NTFS le system. (10) Mitsubishi Electric is not liable for any damages, in whole or in part, including

failure of writing to an SD memory card, and corruption and loss of the saved data, or the like. Back up saved data as necessary.

(11) Do not touch any electronic parts on the FTC control board when inserting or

ejecting an SD memory card, or else the control board could fail.

(a)

(b)

Page 28

F1 F2 F3 F4

System Set Up

B C D

Main screen

5.10 Main remote controller

Letter Name Function

A Screen Screen in which all information is displayed

B Menu Access to system settings for initial set up and

modications. C Back Return to previous menu. D Conrm Used to select or save. (Enter key) E Power/Holiday

If system is switched off pressing once will turn

system on. Pressing again when system is switched

on will enable Holiday Mode. Holding the button

down for 3 seconds will turn the system off. (*1)

F1-4 Function keys Used to scroll through menu and adjust settings.

Function is determined by the menu screen visible

on screen A.

*1 When the system is switched off or the power supply is disconnected, the hydrobox protection functions (e.g. freeze stat. function) will NOT operate. Please beware that without these safety functions enabled the hydrobox may potentially become exposed to damage.

Icon Description

1 Legionella

prevention

When this icon is displayed ‘Legionella prevention

mode’ is active.

2 Heat pump

‘Heat pump’ is running.

Defrosting

Emergency heating

3 Electric heater When this icon is displayed the ‘Electric heaters’

(booster or immersion heater) are in use.

4 Target

temperature

Target ow temperature Target room temperature Compensation curve

5 OPTION Pressing the function button below this icon will dis-

play the option screen.

6 + Increase desired temperature. 7 - Decrease desired temperature. 8 Z1

Z2 Pressing the function button below this icon switch-

es between Zone1 and Zone2.

Information Pressing the function button below this icon displays

the information screen.

9 Space heating/

cooling mode

Heating mode Zone1 or Zone2

Cooling mode Zone1 or Zone2

10 DHW mode Normal or ECO mode

11 Holiday mode

When this icon is displayed ‘Holiday mode’ activated.

12 Timer

Prohibited

Server control

Stand-by

Stand-by (*2)

Stop

Operating

Current temperature

Current room temperature Current water temperature of DHW tank

The Menu button is locked or the switching of the

operation modes between DHW and Heating opera-

tions are disabled in the Option screen.(*3)

SD memory card is inserted. Normal operation.

SD memory card is inserted. Abnormal operation.

*2 This unit is in Stand-by whilst other indoor unit(s) is in operation by

priority.

*3 To lock or unlock the Menu, press the BACK and CONFIRM keys

simultaneously for 3 seconds.

12 11

1 32

15 14

Page 29

System Set Up

Setting the Main remote controller

After the power has been connected to the outdoor and hydrobox (See chapter 4.4) the initial system settings can be entered via the main remote controller.

1. Check all breakers and other safety devices are correctly installed and turn on power to the system.

2. When the main remote controller switched on for the rst time, the screen automatically goes to Initial settings menu, Language setting screen and Date/Time setting screen in order.

3. Main remote controller will automatically start up. Wait approximately 6 minutes whilst the control menus load.

4. When the controller is ready a blank screen with a line running across the top will be displayed.

5. Press button E (Power) (refer to page 27) to turn on the system. Before turning on the system, perform initial settings as instructed below.

General Operation

● To nd the icon that you wish to set, use the F2 and F3 buttons to move between the icons.

● The highlighted icon will appear as a larger version of the center of the screen.

● Press CONFIRM to select and edit the highlighted mode.

●

Follow the <Main remote controller Menu Tree> for further setting, using ◄► buttons for scrolling or F1 to F4 for selecting.

Main Settings Menu

The main settings menu can be accessed by pressing the MENU button. To reduce the risk of untrained end users altering the settings accidentally there are two access levels to the main settings; and the service section menu is password protected.

User Level – Short press

If the MENU button is pressed once for a short time the main settings will be displayed but without the edit function. This will enable the user to view current settings but NOT change the parameters.

Installer Level – Long press

If the MENU button is pressed down for 3 seconds the main settings will be displayed with all functionality available. The color of

▼

buttons is inverted as per right gure.

The following items can be viewed and/or edited (dependent on access level).

• Domestic Hot water (DHW)

• Heating/Cooling

• Schedule timer

• Holiday mode

• Initial settings

• Service (Password protected)

Main menu

Long Press

Page 30

Unrestricted access Installer only Shaded items relate

to DHW functions. These are only available if the system includes a DHW tank.

System Set Up

* Short press for 1 Zone system.

Main

Main screen

Initial

Information

Option

F1 F4

Forced DHW

Hot Water (DHW)

<See

section>

<See

section>

<See

section>

<See

section>

Heating/Cooling

Holiday

mode

Initial

settings

Schedule timer

(Zone1)

(Zone2)

(

PREVIEW

)

(

EDIT

)

(

EDIT

)

(

EDIT

)

(

EDIT

)

DHW

Legionella

Schedule2 period

preview screen

Schedule2 period setting screen1

Term setting

Schedule1/2 select

Schedule timer preview

Zone1

Zone2

Curve parameters

Adjustment

Zone1

Zone2

Day select

Time select Temp.setting

Schedule1

Schedule2

Heating

DHW

ON (

)/OFF

DHW ON (

)/Prohibited ( )/Timer ( )

Heating/Cooling ON (

)/Prohibited ( )/Timer ( )

Energy monitor

Consumed electrical energy Delivered energy

Normal/Eco

DHW max. temp.

Hot water temp. Frequency Start time Max. operation time Duration of max. temp.

DHW max. temp. drop DHW max. operation time DHW mode restriction

Active/Non active

Heating room temp.( ) / Heating ow temp.(

)

/ Heating compensation curve(

) / Cooling ow temp.

Heating room temp.(

) / Heating ow temp.(

)

/ Heating compensation curve(

) / Cooling ow temp.

Compensation curve preview

Compensation curve edit

F1 F3

F2 F4

F2 F3 F4

DHW

Date/Time yyyy/mm/dd/hh:mm

EN/FR/DE/SV/ES/IT/DA/NL/FI/NO/PT/BG/PL/CZ/RU

OFF/Room/Tank/Room&Tank

OFF/ON

hh:mm/hh:mm AM/AM hh:mm °C/°F Room RC zone select

Sensor setting

Zone1

Zone2

Holiday mode setting

Heating room temp.

Heating ow temp.

Zone2

Sensor setting

Select Time/Zone

TH1/Main RC/ Room RC1-8/ “Time/ Zone”

Time setting

Sensor setting

Language Summer time Temp. display Contact number Time display °C/°F

Room sensor settings

Heating/ Cooling

Active/Non active Active/Non active

Long press

(

EDIT

)

F1 F2

Zone1/2 select

F1 F2

Zone1/2 select

Zone1/2 select

F1 F2

Zone1/2 select

save

Cooling ow temp.

Time select Temp.setting

Time select

Time select Temp.setting

Time select

Cooling

Schedule timer preview

Zone1

Zone2

Day select

Time select Temp.setting

Zone1/2 select

save

Time select Temp.setting

Cooling

Schedule timer preview

Zone1

Zone2

Day select

Time select Temp.setting

Zone1/2 select

save

Time select Temp.setting

Page 31

System Set Up

Unrestricted access Installer only Shaded items relate

to DHW functions. These are only available if the system includes a DHW tank.

Long press

Main screen

Initial

Main menu

Service

Password protected

Manual operation Function settings Thermistor adjustment

Economy settings for pump

Electric heater (Heating)

Electric heater (DHW)

Mixing valve control

Flow sensor

Standard (Heat pump & electric heater)/Heater (Electric heater only)/ Boiler/Hybrid (Heat pump & heater/Boiler)

Freeze stat function

Simultaneous operation

Cold weather function

Boiler settings *1

Energy monitor settings

External input settings

Running information Thermistor reading Summary of settings Error history Password protection Manual reset

SD card

Heating operation

H/P thermo diff.adjust

Flow temp.range

Room temp.control

Auxiliary settings

Heat source setting

Pump speed

Operation settings

ON/OFF Delay

Running Interval

Flow t. Ambient

ON/OFF Ambient

ON/OFF

Hybrid settings

Ambient

Energy price

emission

Heat source

Schedule

Electricity

Electric

Heat pump capacity

ON/OFF

Electric heater capacity

Demand control (IN4)

Main controller

Yes/No

Select download data

OFF (Heat source)/Boiler Heater/Boiler

Outdoor thermostat (IN5)

FTC

Main RC SD

Yes/No

Select upload data

Water pump input

Electric energy meter

Booster heater 1 capacity

Pump 1

Booster heater 2 capacity

Pump 2

Immersion heater

Pump 3

Boiler

Boiler efciency

Target temp.

Start & Finish

Temp. increase step

Temp. decrease step

Max. temp. Max. temp. period

Increase interval

Decrease interval

Booster heater 2 capacity

Booster heater 1 capacity

Flow temp. (Increase)

Flow temp. (Decrease)

Priority Ambient/

Cost /CO

Ambient

Intelligent settings

Min.temp.

ON/OFF

Mode Interval

Max.temp.

Lower limit Upper limit

Minimum Maximum

Delay

ON/OFF

(Booster heater/Immersion heater)

*1 For more details, refer to the installation manual of PAC-TH011HT-E.

Floor dry up function

For more details, refer to Page 33.

(

F1 F2 F3

Delivered energy adjustment

Heat meter

Main RC

Page 32

Time/Zone schedule setting screen

System Set Up

Preview screen

Schedule timer

Scheduled timer can be set in two ways, for example; one for summer and the other for winter. (Refer to as "Schedule 1" and "Schedule 2" respectively.) Once the term (months) for the Schedule 1 is specied, rest of the term will be specied as Schedule 2. In each Schedule, an operational pattern of modes (Heating / DHW) can be set. If no operational pattern is set for Schedule2, only the pattern for Schedule 1 will be valid. If Schedule 2 is set to full-year (i.e. March to Feb.), only the operational pattern for Schedule 2 will be valid.

Follow the procedure described in General Operation(Page28) for the set up operation.

Setting the schedule timer

The preview screen allows you to view the current settings. In 2-zone heating operation, press F1 to switch between Zone1 and Zone2. Days of the week are displayed across the top of the screen. Where day appears underlined the settings are the same for all those days underlined. Hours of the day and night are represented as a bar across the main part of the screen. Where the bar is solid black, space heating/cooling and DHW (whichever is selected) is allowed.

When scheduling heating, button F1 changes the scheduled variable between time and temperature. This enables a lower temperature to be set for a number of hours e.g. a lower temperature may be required at night when the occupants are sleeping.

•The schedule timer for space heating/cooling and DHW are set in the same way. However for DHW only time can be used as scheduling variable.

•A small rubbish bin character is also displayed choosing this icon will delete the last unsaved action.

•It is necessary to use the SAVE function F4 button to save settings. CONFIRM does not act as SAVE for this menu.

►For further detail about operation, refer to Operation manual.

Domestic Hot Water (DHW)/Legionella Prevention

Please note that LP mode uses the assistance of electric heaters (if present) to supplement the energy input of the heat pump. Heating water for long periods of time is not efcient and will increase running costs. The installer should give careful consideration to the necessity of legionella prevention treatment whilst not wasting energy by heating the stored water for excessive time periods. The end user should understand the importance of this feature.

ALWAYS COMPLY WITH LOCAL AND NATIONAL GUIDANCE FOR YOUR COUNTRY REGARDING LEGIONELLA PREVENTION.

Heating/Cooling

Holiday mode

►For further detail about operation, refer to Operation manual.

Menu subtitle Description

Room RC zone select

When 2-zone temperature control is active and wireless remote controllers are available, from Room RC zone select screen, select zone no. to assign to each remote controller.

Sensor setting

From sensor setting screen, select a room sensor to be used for monitoring the room temperature from Zone1 and Zone2 separately.

Control option

(pages 24 - 25)

Corresponding initial settings room sensor

Zone1 Zone2

Room RC 1-8 (one each for Zone1 and Zone2)

B TH1 *1 C Main remote controller *1

D *1 *1 When different room sensors are used according to the time schedule

Time/ Zone*2 *1

*1. Not specied (if a locally-supplied room thermostat is used)

Room RC 1-8 (one each for Zone1 and Zone2) (if a wireless remote controller is used as a room thermostat)

*2. From sensor setting screen, select Time/Zone to make it

possible to use different room sensors according to the time schedule set in the Select Time/ Zone menu. The room sensors can be switched up to 4 times within 24 hours.

From the Initial settings menu the installer can set the following.

• Date/Time *Be sure to set it to the local standard time.

• Language

• Summer time

• Temp. display

• Contact number

• Time display

• ºC/ºF

• Room sensor settings

Follow the procedure described in General Operation for the set up operation.

For room sensor settings it is important to choose the correct room sensor depending on the heating mode the system will operate in.

Initial Settings

Page 33

System Set Up

The service menu provides functions for use by installer or service engineer. It is NOT intended the home owner alters settings within this menu. It is for this reason password protection is required to prevent unauthorised access to the service settings.

The factory default password is "0000". Follow the procedure described in General Operation for the set up operation.

In this Installation Manual, instructions will be given only for the following functions;

1. Manual operation

2. Auxiliary settings

3. Heat source setting

4. Operation settings

5. Energy monitor settings

6. External input settings

7. Password protection

8. Manual reset

9. SD card Information on the other functions can be found by consulting the service manual.

The service menu is navigated using the F1 and F2 buttons to scroll through the functions. The menu is split across two screens and is comprised of the following functions;

1. Manual operation

2. Function settings

3. Thermistor adjustment

4. Auxiliary settings

5. Heat source setting

6. Pump speed

7. Operation settings

8. Energy monitor settings

9. External input settings

10. Running information

11. Thermistor reading

12. Summary of settings

13. Error history

14. Password protection

15. Manual reset

16. SD card

Service Menu

During the lling of the system the water circulation pump and 3-way valve can be manually overridden using manual operation mode. When manual operation is selected a small timer icon appears in the screen. The function selected will only remain in manual operation for a maximum of 2 hours. This is to prevent accidental permanent override of the FTC.

►Example Pressing F3 button will switch manual operation mode ON for the main 3-way valve. When lling of the DHW tank is complete the installer should access this menu again and press F3 to deactivate manual operation of the part. Alternatively after 2 hours manual operation mode will no longer be active and FTC will resume control of the part.

Many functions can not be set whilst the indoor unit is running. The installer should turn off the unit before trying to set these functions. If the installer attempts to change the settings whilst the unit is running the main remote controller will display a reminder message prompting the installer to stop operation before continuing. By selecting “Yes” the unit will cease operation.

Manual operation and heat source setting can not be selected if the system is running. A screen will be displayed asking the installer to stop the system before these modes can be activated. The system automatically stops 2 hours after last operation.

This function is used to set the parameters for any auxiliary parts used in the system

Menu subtitle Function/ Description

Economy settings for pump

Water pump stops automatically in certain period of time from when operation is nished.

Delay Time before pump switched off*1 Electric heater (Heating)

To select “WITH booster heater (ON)” or “WITHOUT booster heater (OFF)” in Heating mode.

Delay The minimum time required for the booster heater to turn ON from after Heating

mode has started.

Electric heater (DHW) To select "WITH (ON)" or "WITHOUT (OFF)" booster heater or immersion heater

individually in DHW mode.

Delay The minimum time required for the booster heater or immersion heater to turn ON

from after DHW mode has started. (This setting is applied for both booster and

immersion heater.) Mixing valve control *2

Running Period from valve fully open (at a hot water mixing ratio of 100%) to valve fully

closed (at a cold water mixing ratio of 100%)

Interval Interval (min) to control the Mixing valve. Flow sensor *3

Minimum The minimum ow rate to be detected at Flow sensor.

Maximum The maximum ow rate to be detected at Flow sensor.

*1. Decreasing "time before pump switched off" may increase the duration of stand-by in Heating/Cooling mode. *2. Set the Running time according to the specications of the actuator of each mixing valve. It is recommended

to set the interval to 2 minutes that is a default value. With the interval set longer, it could take longer to warm up a room.

*3. Do not change the setting since it is set according to the specication of Flow sensor attached to the

hydrobox.

The default heat source setting is heat pump and all electric heaters present in the system to be operational. This is referred to as Standard operation on the menu.

Selected

Running Error

indication

Manual operation menu screen

Auxiliary settings menu screen

Page 34

System Set Up

Freeze stat function

Menu subtitle Function/ Description Freeze stat function *1 An operational function to prevent the water circuit from freezing when outdoor ambient temperature drops.

Flow t. The target outlet water temperature at water circuit when operating in Freeze stat function. *2 Outdoor ambient temp. Minimum outdoor ambient temperature which freeze stat function will begin to operate,

(3 - 20ºC) or choose**. If asterisk (**) is chosen freeze stat function is deactivated. (i.e. primary water freeze risk)"

*1. When the system is turned off, freeze stat function is not enabled. *2. Flow t. is xed to 20°C and unchangeable.

Simultaneous Operation

For periods of very low outside temperature this mode can be used. Simultaneous operation allows both DHW and space heating to run together by using the heat pump and/or booster heater to provide space heating whilst only the immersion heater provides heating for DHW. This operation is only available if BOTH a DHW tank AND immersion heater are present on the system.

Heating operation

This function allows operational setting of ow temperature range from the Ecodan and also the time interval at which the FTC collects and processes data for the auto adaptation mode.

Menu subtitle Function Range Unit Default Flow temp. range Minimum temp. To minimize the loss by frequent ON and OFF in mild outdoor ambient tem-

perature seasons.

25 - 45 ºC 30

Maximum temp. To set max. possible ow temperature according to the type of heat emitters. 35 - 60 ºC 50

Room temp. control Mode Setting for Room temp. control

At Fast mode, target outlet water temperature is set higher than the one set at normal mode. This reduces the time to reach the target room temperature when the room temperature is relatively low.*

Normal/ Fast

—

Normal

Interval Selectable according to the heat emitter type and the materials of oor (i.e.

radiators, oor heating-thick, -thin concrete, wood, etc.)

10 - 60 min 10

Heat pump thermo diff.adjust On/Off To minimize the loss by frequent ON and OFF in mild outdoor ambient tem-

perature seasons.

On/Off

—

Lower limit Prohibits heat pump operation until the flow temperature drops below the

target ow temperature plus lower limit value.

−9 - −1 ºC −5

Upper limit Allows heat pump operation until the ow temperature rises above the target

ow temperature plus upper limit value.

+3 - +5 ºC +5

<Table 5.9.1> Heating operation (Room temp. control table)

Note:

1. The minimum ow temperature that prohibits heat pump operation is 20ºC.

2. The maximum ow temperature that allows heat pump operation equals to the maximum temperature set in the Flow temp. range menu.

* Fast mode is not efcient and will increase running cost when compared to normal mode.

• Range of outdoor ambient temperature at which simultaneous operation starts is −30°C to 10°C (default −15°C).

• System shall automatically return to routine operation. This will happen when the outdoor ambient temperature rises above the selected temperature for this specic mode of operation.

Cold weather function

For extremely low outdoor ambient temperature conditions when the heat pump’s capacity is restricted the heating or DHW is provided only by the electric booster heater (and immersion if present). This function is intended for use during extreme cold periods only. Extensive use of direct electrical heaters ONLY will result in higher power consumption and may reduce working life of heaters and related parts.

Floor dry up function

The Floor dry up function automatically changes the target hot water temperature in stages to gradually dry concrete when this particular type of underoor heating system is installed.

Upon completion of the operation the system stops all the operations except the

Freeze stat. operation.

For Floor dry up function, the target ow temp. of Zone1 is the same as that of

Zone2.

Functions Symbol Description Option/Range Unit Default

Floor dry up function a

Set the function to ON and power on the system using the main remote controller, and the dry up heating operation will start.

On/Off — Off

Flow temp. (increase)

Flow temp. increase step b Sets the increase step of the target ow temperature. +1 - +10 ºC +5 Increase interval c Sets the period for which the same target ow temperature is maintained. 1 - 7 day 2

Flow temp. (decrease)

Flow temp. decrease step d Sets the decrease step of the target ow temperature. −1 - −10 ºC −5 Decrease interval e Sets the period for which the same target ow temperature is maintained. 1 - 7 day 2

Target temperature

Start & Finish f Sets the target ow temperature at the start and the nish of the operation. 25 - 60 ºC 30 Max. target temp. g Sets the maximum target ow temperature. 25 - 60 ºC 45

Max. temp. period h

Sets the period for which the maximum target ow temperature is maintained.

1 - 20 day 5

0 1 2 3 4 5 6 7 8 9 101112 13 14 15 16 17 18

(

°C

)

(b)

(d)

(h)

(c)

(f)

(e)

(g)

Days

Target ow temp.

• This function is not available when a PUHZ-FRP outdoor unit is connected.

• Disconnect wiring to external inputs of room thermostat, demand control, and outdoor thermostat, or the target ow temperature may not be maintained.

• Range of outdoor ambient temperature at which cold weather function starts is −30°C to −10°C (default −15°C).

• System shall automatically return to routine operation. This will happen when the outdoor ambient temperature rises above the selected temp for this specic mode of operation.

Page 35

System Set Up

Demand control(IN4)

Outdoor thermostat (IN5)

Password protection is available to prevent unauthorised access to the service menu by untrained persons.

The selection of “OFF”, whilst a signal is being sent to IN4, forcefully stops all the heat source operations and the selection of “Boiler” stops operations of heat pump and electric heater and performs boiler operation.

The selection of “Heater”, whilst a signal is being sent to IN5, performs electric-heater-only operation and the selection of “Boiler” performs boiler operation.

Resetting the password

If you forget the password you entered, or have to service a unit somebody else installed, you can reset the password to the factory default of 0000.

1. From the main settings menu scroll down the functions until Service Menu is highlighted.

2. Press CONFIRM.

3. You will be prompted to enter a password.

4. Hold down buttons F3 and F4 together for 3 seconds.

5. You will be asked if you wish to continue and reset the password to default setting.

6. To reset press button F3.

7. The password is now reset to 0000.

Should you wish to restore the factory settings at any time you should use the manual reset function. Please note this will reset ALL functions to the factory default settings.

The use of an SD memory card simplies the main remote controller settings in the eld. *Ecodan service tool (for use with PC tool) is necessary for the setting.

In this menu, all parameters required to record the consumed electrical energy and the delivered heat energy which is displayed on the main remote controller can be set. The parameters are an electric heater capacity, supply power of water pump and heat meter pulse.

Follow the procedure described in General Operation for the set up operation.

For Pump 1, *** can be also set besides this setting. In the case *** is selected, the system acknowledges "factory tted pump" is selected. Refer to the section [Energy Monitor] in "3. Technical Information"

Password input screen

Password verify screen

Page 36

Service and Maintenance

The indoor hydrobox must be serviced once a year by a qualied individual. Servicing and maintenance of the outdoor unit should only be done by a Mitsubishi Electric trained technician with relevant qualications and experience. Any electrical work should be done by a tradesperson with the appropriate electrical quali-

cations. Any maintenance or ‘DIY’ xes done by a non-accredited person could invalidate the Warranty and/or result in damage to the hydrobox and injury to the person.

Fault symptom Possible cause Solution

Cold water at taps (systems with DHW tank)

Scheduled control off period Check schedule settings and change if necessary.

All hot water from DHW tank used Ensure DHW mode is operating and wait for DHW tank to re-heat.

Heat pump or electric heaters not working Contact installer.

Heating system does not get up to set temperature.

Prohibit, schedule or holiday mode selected Check settings and change as appropriate.

Incorrectly sized radiators Contact installer. The room in which the temperature sensor is located is at

a different temperature to the rest of the house.

Reposition the temperature sensor to a more suitable room.

Battery problem *wireless control only Check the battery power and replace if at.

The cooling system does not cool down to the set temperature. (ONLY for ERS* models)

When the water in the circulation circuit is unduly hot, Cooling mode starts with a delay for the protection of the outdoor unit.

Normal operation

When the outdoor ambient temperature is signicantly low, Cooling mode does not start running to avoid freezing of the water pipes.

If the freeze stat. function is not necessary, contact installer to change the settings.

Heating emitter is hot in the DHW mode. (The room temperature rises.)

The 3-way valve may have foreign objects in it, or hot water may ow to the heating side due to malfunctions.

Contact installer.

Schedule function inhibits the system from operating but the outdoor unit operates.

Freeze stat. function is active. Normal operation no action necessary.

Pump runs without reason for short time.

Pump jam prevention mechanism to inhibit the build up of scale.

Normal operation no action necessary.

Mechanical noise heard coming from hydrobox

Heaters switching on/off Normal operation no action required.

Noisy pipework Air trapped in the system Try bleeding radiators (if present) If the symptoms persist contact installer.

Loose pipework Contact installer.

Water discharges from one of the relief valves

The system has overheated or overpressurised Switch off power to the heat pump and any immersion heaters then con-

tact installer.

Small amounts of water drip from one of the relief valves.

Dirt may be preventing a tight seal in the valve Twist the valve cap in the direction indicted until a click is heard. This will

release a small amount of water ushing dirt from the valve. Be very careful the water released will be hot. Should the valve continue to drip contact installer as the rubber seal may be damaged and need replacing.

An error code appears in the main remote controller display.

The indoor or outdoor unit is reporting an abnormal condition

Make a note of the error code number and contact installer.

Heat pump is forced to turn ON and OFF.

Smart grid ready input (IN11 and IN12) is used, and switch-on and off commands are input.

Normal operation no action necessary.

All setting will be saved for 1 week with no power, after 1 week Date/Time ONLY will be saved.

Basic Troubleshooting for Hydrobox

The following table is to be used as a guide to possible problems. It is not exhaustive and all problems should be investigated by the installer or another competent person. Users should not attempt to repair the system themselves. At no time should the system be operating with the safety devices by-passed or plugged.

For more details, refer to the service manual.

<Draining the hydrobox> WARNING: DRAINED WATER MAY BE VERY HOT

1. Before attempting to drain the hydrobox islolate from the electrical supply to prevent booster heater burning out.

2. Isolate hydrobox from primary water circuit and drain water from hydrobox. Use a suitable heat resistant hose to assist in these operations.

3. Drain any remaining water from booster heater using tted drain cock and hose to safely drain the unit.

4. After the hydrobox is drained, water remains in the following component parts. Drain water completely by checking the inside of the parts.

• Strainer (Remove the strainer cover.)

• Pressure relief valve (Operate the valve.)

Page 37

Service and Maintenance

Error Codes

Code Error Action

L3 Circulation water temperature overheat protection

Flow rate may be reduced check for;

• Water leakage

• Strainer blockage

• Water circulation pump function (Error code may display during lling of primary circuit, complete lling and reset error code.)

L4 DHW tank water temperature overheat protection Check the immersion heater and it’s contactor.

Indoor unit temperature thermistor (THW1, THW2, THW5, THW6, THW7, THW8, THW9) failure

Check resistance across the thermistor.

L6 Circulation water freeze protection See Action for L3. L8 Heating operation error Re-attach any thermistors that have become dislodged.

Low primary circuit ow rate detected by ow sensor or ow switch (ow switches 1, 2, 3)

See Action for L3. If the ow sensor or ow switch itself does not work, replace it.

Caution: The pump valves may be hot, please take care.

LC Boiler circulation water temperature overheat protection

Check if the setting temperature of the Boiler for heating exceeds the restriction. (See the manual of the thermistors "PAC-TH011HT-E") Flow rate of the heating circuit from the boiler may be reduced. Check for

• water leakage

• strainer blockage

• water circulation pump function LD Boiler temperature thermistor (THWB1, THWB2) failure Check resistance across the thermistor. LE Boiler operation error See Action for L8. Check the status of the boiler. LF Flow sensor failure Check ow sensor cable for damage or loose connections.

LH Boiler circulation water freeze protection

Flow rate of the heating circuit from the boiler may be reduced. Check for

• water leakage

• strainer blockage

• water circulation pump function

LJ DHW operation error (type of external plate HEX)

• Check for disconnection of DHW tank water temp. thermistor (THW5).

• Flow rate of the sanitary circuit may be reduced.

• Check for water circulation pump function.

LL Setting errors of DIP switches on FTC control board

For boiler operation, check that DIP SW1-1 is set to ON (With Boiler) and DIP SW2-6 is set to ON (With Mixing Tank). For 2-zone temperature control, check DIP SW2-7 is set to ON (2-zone) and DIP SW2-6 is set to ON (With Mixing Tank).

J0 Communication failure between FTC and wireless receiver Check connection cable for damage or loose connections.

P1 Thermistor (Room temp.) (TH1) failure Check resistance across the thermistor.

P2 Thermistor (Ref. liquid temp.) (TH2) failure Check resistance across the thermistor.

P6 Anti-freeze protection of plate heat exchanger

See Action for L3. Check for correct amount of refrigerant.

J1 - J8 Communication failure between wireless receiver and wireless remote controller

Check wireless remote controller’s battery is not at. Check the pairing between wireless receiver to wireless remote controller. Test the wireless communication. (See the manual of wireless system)

E0 - E5 Communication failure between main remote controller and FTC Check connection cable for damage or loose connections.

E6 - EF Communication failure between FTC and outdoor unit

Check that the outdoor unit has not been turned off. Check connection cable for damage or loose connections. Refer to outdoor unit service manual.

E9 Outdoor unit receives no signal from indoor unit.

Check both units are switched on. Check connection cable for damage or loose connections. Refer to outdoor unit service manual.

U*, F* Outdoor unit failure Refer to outdoor unit service manual.

A* M-NET communication error Refer to outdoor unit service manual.

Note: To cancel error codes please switch system off (Press button E, on main remote controller, for 3 seconds).

Page 38

Service and Maintenance

Note: Within the rst couple of months of installation, remove and clean the hydrobox’s strainer plus any that are tted external to the hydrobox. This is especially important when installing on an existing system.

In addition to annual servicing it is necessary to replace or inspect some parts after a certain period of system operation. Please see tables below for detailed instructions. Replacement and inspection of parts should always be done by a competent person with relevant training and qualications.

Parts which require regular replacement

Parts Replace every Possible failures

Pressure relief valve (PRV) Air vent (Auto/Manual) Drain cock (Primary circuit) Manometer

6 years Water leakage

Parts which require regular inspection

Parts Check every Possible failures

Immersion heater 2 years

Earth leakage causing circuit breaker to activate (Heater is always OFF)

Water circulation pump 20,000 hrs (3 years)

Water circulation pump failure

Parts which must NOT be reused when servicing

* O-ring * Gasket

Note: Always replace the gasket for pump with a new one at each regular maintenance (every 20,000 hours of use or every 3 years).

Annual Maintenance

It is essential that the hydrobox is serviced at least once a year by a qualied individual any spare parts required MUST be purchased from Mitsubishi Electric (safety matter). NEVER bypass safety devices or operate the unit without them being fully operational.

Page 39

Service and Maintenance

Engineers Forms

Should settings be changed from default, please enter and record new setting in ‘Field Setting’ column. This will ease resetting in the future should the system use change or the circuit board need to be replaced.

Commissioning/Field settings record sheet

Main remote controller screen Parameters Default setting

Field setting

Notes

Main Zone1 heating room temp. 10°C - 30°C 20°C

Zone2 heating room temp. *14 10°C - 30°C 20°C Zone1 heating ow temp. 25°C - 60°C 45°C Zone2 heating ow temp. *1 25°C - 60°C 35°C Zone1 cooling ow temp. *12 5°C - 25°C 15°C Zone2 cooling ow temp. *12 5°C - 25°C 20°C Zone1 heating compensation curve −9°C - + 9°C 0°C Zone2 heating compensation curve *1 −9°C - + 9°C 0°C Holiday mode Active/Non active/Set time —

Option Forced DHW operation On/Off —

DHW On/Off/Timer On Heating/Cooling On/Off/Timer On Energy monitor Consumed electrical energy/Delivered energy —

Setting DHW *13 Operation mode Normal/Eco *16 Normal

DHW max. temp. 40°C - 60°C *2 50°C DHW temp. drop 5°C - 30°C 10°C DHW max. operation time 30 - 120 min 60 min DHW mode restriction 30 - 120 min 30 min

Legionella prevention *13 Active Yes/No Ye s

Hot water temp. 60°C - 70°C *2 65°C Frequency 1 - 30 days 15 days Start time 00.00 - 23.00 03.00 Max. operation time 1 - 5 hours 3 hours Duration of maximum temp. 1 - 120 min 30 min

Heating/ Cooling *12 Zone1 operation mode Heating room temp./ Heating ow temp./ Heating

compensation curve/ Cooling ow temp.

Room temp.

Zone2 operation mode *1 Heating room temp./ Heating ow temp./ Heating

compensation curve/ Cooling ow temp.

Compensation curve

Hi ow temp. set point

Zone1 outdoor ambient temp. −30°C - +33°C *3 −15°C Zone1 ow temp. 25°C - 60°C 50°C Zone2 outdoor ambient temp. *1 −30°C - +33°C *3 −15°C

Zone2 ow temp. *1 25°C - 60°C 40°C Lo ow temp. set point

Zone1 outdoor ambient temp. −28°C - +35°C *4 35°C

Zone1 ow temp. 25°C - 60°C 25°C

Zone2 outdoor ambient temp. *1 −28°C - +35°C *4 35°C

Zone2 ow temp. 25°C - 60°C 25°C Adjust Zone1 outdoor ambient temp. −29°C - +34°C *5 —

Zone1 ow temp. 25°C - 60°C —

Zone2 outdoor ambient temp. *1 −29°C - +34°C *5 —

Zone2 ow temp. *1 25°C - 60°C —

Holiday DHW *13 Active/Non active Non active

Heating/ Cooling *12 Active/Non active Active

Zone1 heating room temp. 10°C - 30°C 15°C

Zone2 heating room temp. *14 10°C - 30°C 15°C

Zone1 heating ow temp. 25°C - 60°C 35°C

Zone2 heating ow temp. *1 25°C - 60°C 25°C

Zone1 cooling ow temp. *12 5°C - 25°C 25°C

Zone2 cooling ow temp. *12 5°C - 25°C 25°C

Initial settings Language EN/FR/DE/SV/ES/IT/DA/NL/FI/NO/PT/BG/PL/CZ/RUEN

°C/°F

°C

Summer time

On/Off

Off

Temp. display

Room/DHW tank/Room&DHW tank /Off

Off

Time display

hh:mm/hh:mm AM/AM hh:mm

hh:mm

Room sensor settings for Zone1

TH1/Main RC/Room RC1-8/“Time/Zone”

TH1

Room sensor settings for Zone2 *1

TH1/Main RC/Room RC1-8/“Time/Zone”

TH1

Room RC zone select *1 Zone1/Zone2 Zone1

Service menu Thermistor

adjustment

THW1 −10°C - +10°C 0°C THW2 −10°C - +10°C 0°C THW5 −10°C - +10°C 0°C THW6 −10°C - +10°C 0°C THW7 −10°C - +10°C 0°C THW8 −10°C - +10°C 0°C THW9 −10°C - +10°C 0°C THWB1 −10°C - +10°C 0°C THWB2 −10°C - +10°C 0°C

Auxiliary settings Economy settings for

pump.

On/Off *6 On

Delay

(3 - 60 min) 10 min Electric heater (Heating)

Space heating: On (used)/Off (not used) On

Electric heater delay timer (5 - 180 min) 30 min Electric heater (DHW) *13

Booster heater

DHW: On (used)/Off (not used)

Immersion heater

DHW: On (used)/Off (not used)

Electric heater delay timer (15 - 30 min) 15 min Mixing valve control Running (10 - 240 sec) 120 sec

Interval (1 - 30 min) 2 min Flow sensor

Minimum(0

100L/min) 5 L/min

Maximum(0

100L/min) 100 L/min

*1 The settings related to Zone2 can be switched only when 2 Zone temperature control is enabled (when DIP SW2-6 and SW 2-7 are ON). *2 For the model without both booster and immersion heater, it may not reach the set temperature depending on the outside ambient temperature. *3 The lower limit is -15°C depending on the connected outdoor unit. *4 The lower limit is -13°C depending on the connected outdoor unit. *5 The lower limit is -14°C depending on the connected outdoor unit.

Page 40

Service and Maintenance

Engineers Forms

Commissioning/Field settings record sheet (continued from the previous page)

Main remote controller screen Parameters

Default setting

Field setting

Notes

Service menu Pump speed Pump speed(1 - 5) 5

Heat source setting Standard/Heater/Boiler/Hybrid *7 Standard Operation

settings

Heating operation*8Flow temp.range

*10

Min.temp.(25 - 45°C) 30°C

Max.temp.(35 - 60°C) 50°C Room temp.control *15

Mode(Normal/Fast) Normal

Interval(10 - 60min) 10min Heat pump thermo diff.adjust

On/Off *6 On

Lower limit(−9 - −1°C) −5°C

Upper limit(+3 - +5°C) 5°C

Freeze stat function *11 Outdoor ambient temp. (3 - 20°C) / ** 5°C Simultaneous operation (DHW/Heating)

On/Off *6 Off

Outdoor ambient temp. (−30 - +10°C) *4 −15°C

Cold weather function

On/Off *6 Off

Outdoor ambient temp. (−30 - −10°C) *4 −15°C

Boiler operation

Hybrid settings Outdoor ambient temp. (−30

- +10°C) *4

−15°C

Priority mode (Ambient/ Cost/CO

2) *17

Ambient

Intelligent set-

tings

Energy price *9

Electricity (0.001 999 */kWh)

0.5

*/kWh

Boiler (0.001 999 */kWh)

0.5

*/kWh

CO2 emission

Electricity (0.001 - 999 kg

-CO2/kWh)

0.5 kg -CO2/kWh

Boiler (0.001

999 kg -CO2/ kWh)

0.5 kg -CO2/kWh

Heat source

Heat pump capacity (1

- 40 kW)

11.2

Boiler efciency (25

- 150%)

80%

Booster heater 1 capacity (0

- 30 kW)

2 kW

Booster heater 2 capacity (0

- 30 kW)

4 kW

Floor dry up function

On/Off *6 Off Target temp. Start&Finish

(25 - 60°C) 30°C

Max. temp.

(25 - 60°C) 45°C

Max. temp. period

(1 - 20

days)

5 days

Flow temp. (Increase)

Temp. increase step (+1 - +10°C)

+5°C

Increase interval (1 - 7 days)

2 days

Flow temp. (Decrease)

Temp. decrease step (−1 - −10°C)−5°C Decrease interval (1 - 7 days)

2 days

Energy monitor settings

Electric heater capacity

Booster heater 1 capacity

0 - 30kW 2kW

Booster heater 2 capacity

0 - 30kW 4kW

Immersion heater capacity

0 - 30kW 0kW

Delivered energy adjustment −50 - +50% 0% Water pump input Pump 1 0 - 200W or ***(factory tted pump) ***

Pump 2 0 - 200W 0W

Pump 3 0 - 200W 0W Electric energy meter 0.1/1/10/100/1000 pulse/kWh 1 pulse/kWh Heat meter 0.1/1/10/100/1000 pulse/kWh 1 pulse/kWh

External input settings

Demand control (IN4) Heat source OFF/Boiler operation Boiler

operation

Outdoor thermostat (IN5)

Heater operation/Boiler operation Boiler

operation

*6 On: the function is active; Off: the function is inactive. *7 When DIP SW1-1 is set to OFF “WITHOUT Boiler” or SW2-6 is set to OFF “WITHOUT Mixing tank”, neither Boiler nor Hybrid can be selected. *8 Valid only when operating in Room temp. control mode. *9 “*” of “*/kWh” represents currency unit (e.g. € or £ or the like) *10 Valid only when operating in Heating room temperature. *11 If asterisk (**) is chosen freeze stat function is deactivated. (i.e. primary water freeze risk) *12 Cooling mode settings are available for ERS* model only. *13 Only available if DHW tank present in system. *14 The settings related to Zone2 can be switched only when 2-zone temperature control or 2-zone valve ON/OFF control is active. *15 When DIP SW5-2 is set to OFF, the function is active. *16 When the hydrobox is connected with a PUMY-P outdoor unit, the mode is fixed to “Normal”. *17 When the hydrobox is connected with a PUMY-P outdoor unit, the mode is fixed to “Ambient”.

Page 41

Supplementary information

Refrigerant collecting (pumpdown) for split model systems only

Refer to “Refrigerant collection” in the outdoor unit installation manual or service manual.

Back-up operation of boiler

Heating operation is backed up by boiler. For more details, refer to the installation manual of PAC-TH011HT-E.

1. Set DIP-SW 1-1 to ON "With boiler" and SW2-6 to ON “With Mixing tank”.

2. Install the thermistors THWB1 (Flow temp.) and THWB2 (Return temp.) *1 on the boiler circuit.

3. Connect the output wire (OUT10: Boiler operation) to the signal input (room thermostat input) on the boiler. *2

4. Install one of the following room temp. thermostats. *3

Wireless remote controller (option) Room temp. thermostat (local supply) Main remote controller (remote position)

*1 The boiler temperature thermistor is an optional part. *2 OUT10 has no voltage across it. *3 Boiler heating is controlled on/off by the room temp. thermostat.

1. Go to Service menu > Heat source setting and choose “Boiler” or “Hybrid”. *4

2. Go to Service menu > Operation settings > Boiler settings to make detailed settings for “Hybrid” above .

*4 The “Hybrid” automatically switches heat sources between Heat pump (and Electric heater) and boiler.

Multiple outdoor units control

To realize bigger systems by using multiple outdoor units, up to 6 units of the same model can by connected. The hydrobox can be used as a slave unit for multiple outdoor unit control. For more details, refer to the installation manual of PAC-IF061/062B-E. PAC-IF051/052B-E can not be connected to the hydro box. Check the model name of connecting master unit.

• Set DIP SW4-1 to ON “Active: multiple outdoor unit control”.

• Keep DIP SW4-2 OFF (default setting) (master/slave setting: slave).

• Set DIP SW1-3 to ON when the hydrobox is connected to a DHW tank.

Note : PUHZ-FRP/PUMY-P outdoor unit is not available for multiple outdoor units control.

Product che of temperature control

(a) Supplier’s name: MITSUBISHI ELECTRIC CORPORATION (b) Supplier’s model identier: PAR-WT50R-E and PAR-WR51R-E (c) The class of the temperature control: (d) The contribution of the temperature control to seasonal space heating energy efciency: 4%

Page 42

HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-K U, TOKYO 100-8310, JAPAN

RG79D954H05 Printed in the UNITED KINGDOM

Please be sure to put the contact address/telephone number on this manual before handing it to the customer.

Mitsubishi EHSC-VM6C, EHSD-YM9C, EHSC-VM2C, EHSC-VM2EC, EHSC-VM6EC Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual