CLIVET MULTISplit HYDRO-M 80M Manuale utente

HYDROM 80M

TECHNICAL MANUAL

MULTISplit

TM21N041GB-00 01/2022

R32

Table of Contents Page

1. General Information ..................................................................................... 4

1. System Schematic

2. Unit Parts

3. Model Reference

4. External Appearance

5. Indoor unit combination

6. Nomenclature

2. Engineering Data .......................................................................................... 22

1. General Specifications

2. Dimensional Drawings

3. Part Names

4 Schematic Diagram

5. Electrical Wiring Diagrams

6. Indoor Printed Circuit Board Diagram

7. Electrical Characteristics

3. Product Features ........................................................................................... 24

1. Operation Modes and Functions

2. Wired Controller Functions

3. SMART KIT Configuration Guidelines

4. Installation .................................................................................................... 59

1. Installation Overview

2. Location Selection

3. Indoor Unit Installation

4. Outdoor Unit Installation

Table of Contents Page

5. Refrigerant Pipe Installation

6. Vacuum Drying and Leakage Checking

7. Water Pipework

8. Additional Refrigerant Charge

9. Engineering of Insulation

10. Engineering of Electrical Wiring

11. Selection of Water Tank

12. Test Operation

13. Error Code

Contents

1. System Schematic ..................................................................................................5

2. Unit Parts..............................................................................................................16

3. Model Reference..................................................................................................18

4. External Appearance ...........................................................................................18

5. Indoor unit combination .....................................................................................19

6. Nomenclature.......................................................................................................20

General Information

General

Information

Page 5 

1. System Schematic

With innovation technology, Midea combine Air to Air and Air to Water in the same multi system, providing an all-in-one

solution for demands of space cooling, space heating and domestic hot water.

1.1 Scenario 1:Use of multi-split air conditioners

Indoor unit: cooling (dehumidifying), heating, fresh air, hydraulic module: domestic hot water, space heating

There is a mode conﬂict among cooling (dehumidifying), heating and the space heating. The domestic hot water mode

doesn’t have conﬂicts with other modes, they can be switched on simultaneously but cannot be operated simultaneously.

Domestic hot water mode is preferred by default (and can be canceled by operating the wired controller). After the hot

water reaches the set temperature, other modes can be operated, and it can also be avoided by hot water timing. If

the hot water mode is not preferred, it will be operated intermittently with other modes until one mode reaches the set

temperature or the unit is shut down.

30 30

Reserved functions: Simultaneous operation of hydraulic module and heating can be set with the wired controller, but

the user shall be reminded of it in the instructions. This setting may lead to poorer heating effect of indoor unit of the air

conditioner or poorer space heating effect or longer duration or higher power consumption for the domestic hot water

to reach the set temperature. If the domestic hot water cannot reach the set temperature for a long time, the hydraulic

module and the EA heater of the water tank will be started to ensure the domestic hot water temperature;

1 Outdoor unit

2 Hydraulic module

9 Floor heating

11 Domestic hot water storage

tank

30 Indoor unit of air conditioner

General

Information

Page 6 

1.2 Scenario 2:Only used for space heating

The outlet water temperature of the hydraulic module is set by using the user controller, and the outlet water

temperature is set in accordance with different loads (ﬂoor heating or heating radiator) or room temperature. When the

outlet water temperature reaches the set temperature, the hot water generator will shut down. External circulating water

pumps may be connected to the pipelines to increase the pumping head, and water pump interfaces are reserved on the

main board.

1 Outdoor unit

2 Hydraulic module

3 Heat exchanger

4 Electric heating tank

5 Built-in circulating water pump

6 User controller

7 Shut-off valve (ﬁeld supplied)

8 External circulating water pump (ﬁeld supplied)

9 Floor heating

General

Information

Page 7 

1.3 Scenario 3: Space heating and domestic hot water

The domestic hot water is supplied by the domestic hot water storage tank connected to the hot water generator,

the hot water tank is connected by electric 3-way valve and feedwater line, the main control feed tank has reserved

temperature sensor and immersion electric heater interfaces (achieving disinfection and EA heating functions), there is no

water tank by default in the system, and they needs to be started by dialing on the main board.

1 Outdoor unit

2 Hydraulic module

3 Heat exchanger

4 Electric heating tank

5 Built-in circulating water pump

6 User controller

7 Shut-off valve (ﬁeld supplied)

8 External circulating water pump (ﬁeld supplied)

9 Floor heating

10 Electric 3-way valve (ﬁeld supplied)

11 Domestic hot water storage tank

12 Heating coil

13 Immersion electric heater

14 Temperature detection tube (for water temperature

sensor)

15 Magnesium anode (for electrochemical corrosion)

16 Drain outlet

General

Information

Page 8 

1.4 Scenario 4: Space heating, space cooling (reserved) and domestic hot water

A ﬂoor heating loop and a fan coil unit are used for space heating, and a fan coil unit is used for space cooling.

The domestic hot water is supplied by the water tank connected to the hydraulic module. The start and stop of air

conditioning and heating and domestic hot water are controlled by the outlet water temperature of the hydraulic

module and the water tank temperature respectively. In space cooling mode, close the 2-way valve to prevent the cold

water from entering the ﬂoor heating loop.

1 Outdoor unit

2 Hydraulic module

3 Heat exchanger

4 Electric heating tank

5 Built-in circulating water pump

6 wired controller

7 Shut-off valve (ﬁeld supplied)

8 External circulating water pump

(ﬁeld supplied)

9 Floor heating

10 Electric 3-way valve (ﬁeld supplied)

11 Domestic hot water storage tank

12 Heating coil

13 Immersion electric heater

14 Temperature detection tube (for water temperature

sensor)

15 Magnesium anode (for electrochemical corrosion)

16 Drain outlet

17 Electric 2-way valve

18 Fan coil

General

Information

Page 9 

1.5 Scenario 5: Space heating and domestic hot water + return water function

A return water function is provided for the domestic hot water. The start and stop of the return water pump are

controlled by the return water temperature, so there is no waiting for the use of hot water. The main board has return

water pump and return water temperature sensor interfaces, which are started by dialing on the main board (the return

water pump and the mixing water pump share an interface, the mixing water pump is defaulted in the system).

1 Outdoor unit

2 Hydraulic module

3 Heat exchanger

4 Electric heating tank

5 Built-in circulating water pump

6 wired controller

7 Shut-off valve (ﬁeld supplied)

8 External circulating water pump (ﬁeld supplied)

9 Floor heating

10 Electric 3-way valve (ﬁeld supplied)

11 Domestic hot water storage tank

12 Heating coil

13 Immersion electric heater

14 Temperature detection tube (for water temperature

sensor)

15 Magnesium anode (for electrochemical corrosion)

16 Drain outlet

19 Return water pump

20 Return water temperature sensor

General

Information

Page 10 

1.6 Scenario 6: Only used for space heating (suitable for multiple terminals, water

temperature adjustment)

During heating, the user can connect multiple terminals simultaneously, e.g. ﬂoor heating system and heating radiators

(or fan coils). However, as the water temperature required for the heating radiator is higher than that required for the

ﬂoor heating, a mixing water valve and a mixing water pump are provided for the ﬂoor heating to adjust the water

temperature of the ﬂoor heating. For example, if the set outlet water temperature of the hydraulic module is 55°, the

ﬂoor heating temperature can be controlled at 35° by the mixing water valve to prevent damages to the ﬂoor due to

high temperature. The mixing water valve is controlled by itself. The main board has a reserved mixing water pump

interface (the return water pump and the mixing water pump share an interface, the mixing water pump defaulted in

the system, and the mixing water pump can also be connected to the 2-way valve interface when the return water pump

and the mixing water pump are needed simultaneously).

1 Outdoor unit

2 Hydraulic module

3 Heat exchanger

4 Electric heating tank

5 Built-in circulating water pump

6 User controller

7 Shut-off valve (ﬁeld supplied)

8 External circulating water pump (ﬁeld supplied)

9 Floor heating

21 Mixing water pump

22 Mixing water valve

23 Heating radiator

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