Nobel R290 Guide de l'utilisateur

Technical Manual

Installation, maintenance & use instructions

Multifunctional

Heat Pump R290

CONTENTS

1. GENERAL ............................................................................................................ 4

2. SAFETY WARNINGS ........................................................................................... 4

2.1. Usage and installation warnings ........................................................................... 4

2.2. Personal safety warnings...................................................................................... 5

2.3. Transport, storage and handling warnings............................................................ 6

2.4. Freeze protection warnings .................................................................................. 6

3. SYSTEM DESCRIPTION ..................................................................................... 7

4. INSTALLATION .................................................................................................... 8

4.1. General points for installation engineer ................................................................ 8

4.1.1.Preparation before installation .............................................................................. 8

4.1.2.Sitting the heat pump............................................................................................ 8

4.1.3.Location requirements between machine and building....................................... 10

4.1.4.Condensate drainage ......................................................................................... 12

4.1.5.Accessories supplied .......................................................................................... 13

4.1.6.Controller ............................................................................................................ 13

4.2. Installation design ............................................................................................... 14

4.3. Pipe connection .................................................................................................. 17

4.4. Electrical connection........................................................................................... 18

4.4.1.System diagram.................................................................................................. 19

4.4.2.Wiring diagram.................................................................................................... 20

4.4.3.Auxiliary electrical heater connection ................................................................. 24

4.4.4.Installation drawing ............................................................................................. 24

4.4.5.DHW anti-freeze ................................................................................................. 26

4.4.6.AC anti-freeze..................................................................................................... 26

4.5. Commissioning ................................................................................................... 26

4.5.1.Preparations ....................................................................................................... 26

4.5.2.Inspection before start up ................................................................................... 27

4.5.3.Start up and commissioning ............................................................................... 27

5. CONTROLLER................................................................................................... 28

5.1. Electric parts control program working theory .................................................... 28

5.2. Operating mode principle.................................................................................... 29

5.3. Wired controller................................................................................................... 30

5.3.1.Main interface ..................................................................................................... 30

5.3.2.Buttonsdenitionandaction............................................................................... 31

5.4. Night mode ......................................................................................................... 43

5.5. Communication with controller............................................................................ 43

5.6. Denitionofabbreviationdisplayedinthecontroller .......................................... 43

6. TECHNICAL SPECIFICATION........................................................................... 45

6.1. Internalview........................................................................................................ 45

6.2. System drawing .................................................................................................. 47

6.3. Dimensions(mm)................................................................................................. 48

6.4. Specication ....................................................................................................... 49

7. MAINTENANCE ................................................................................................. 50

8. HOW TO GET THE MOST OUT OF YOUR HEAT PUMP ................................. 51

Appendix I: WI-FI operation ............................................................................. 52

Multifunctional Heat Pump R290

Technical Manual - Multifunctional Heat Pump R290

1 GENERAL

Thank you for choosing Master Heat. This is a heat pump capable of providing the ideal

level of comfort for your home, always with a suitable hydraulic installation.

The unit is an air source heat pump for space heating/cooling and sanitary water heater

for houses, apartment blocks and small industrial premises. Outdoor air is used as a heat

source creating free energy to heat your home.

This manual forms an essential part of the product and it must be given to the user. Read

the warnings and recommendations in the manual carefully, as they contain important

information on the safety, use and maintenance of the installation.

This heat pump must be installed by qualified personnel only, in accordance with the

legislation in force and following the manufacturer’s instructions.

The start-up of this heat pump and any maintenance operations must be carried only by

qualified personnel only.

Incorrect installation of this heat pump could result in damage to people, animals or

property, and the manufacturer will not be held liable in such cases.

2 SAFETY WARNINGS

2.1 Usage and installation warnings

The heat pump must be installed by personnel authorized by the Ministry of Industry, in

compliance with the applicable laws and regulations. The precautions detailed here

cover very important issues. Please be sure to follow them carefully.

Read carefully this instruction manual and keep it in a safe, easily-accessible place. The

manufacturer will not be liable for any damages caused by failure to follow these

instructions.

This heat pump is suitable for use in both heating and cooling installations and can be

combined with fan coils, underfloor heating/cooling, low-temperature radiators, and

domestic hot water tanks (optional). It must be connected to a heating/cooling installation

and/or a domestic hot water distribution network and compatible with its performance

and power.

4Technical Manual - Multifunctional Heat Pump R290

This appliance must only be used for the purpose for which it has been expressly

designed. Any other use is considered unsuitable and therefore hazardous. The

manufacturer shall not be considered liable under any circumstances for damage caused

by unsuitable, erroneous or irrational use.

Remove all the packaging and check the contents are complete. In case of doubt, do not

use the heat pump. Contact your supplier. Keep the packaging elements out of reach of

children, as they can be dangerous.

Improper installation or placement of equipment or accessories may cause electrocution,

short circuit, leakage, fire, or other damage to the equipment. Use only accessories or

optional equipment designed specifically to work with the products presented in this

manual. Do not modify, replace or disconnect any safety or control device without first

consulting the manufacturer.

When it is decided not to use any more the heat pump, disable the parts that could

represent a potential hazard.

2.2 Personal safety warnings

Always wear appropriate personal protective equipment (gloves, safety goggles, etc.)

when performing installation and/or maintenance on the unit.

Do not touch any switch with wet fingers. Touching a switch with wet fingers may cause

electric shock. Before accessing the electrical components of the heat pump, disconnect

the main power supply completely.

Disconnect all electricity sources before dismantling the cover panel from the electric

panel or before making any connections or accessing electrical parts.

To avoid electrocutions, be sure to turn off the power for 1 minute (or more) before

servicing the electrical parts. Even after 1 minute, always measure the voltage at the

terminals of the main circuit capacitors and other electrical parts before touching them

and make sure that the voltage is equal to or less than 50 V dc.

When the cover panels are disassembled, the energized parts can be easily accessed.

Never leave the unit unattended during installation or during maintenance work when the

cover panel is removed.

Do not touch the refrigerant pipes, water piping, or internal parts during and immediately

after operation. Pipes and internal parts may be excessively hot or cold, depending on

the use of the unit.

Multifunctional Heat Pump R290

Technical Manual - Multifunctional Heat Pump R290

The hands may be burned by cold or heat in case of improperly touching pipes or internal

parts. To avoid injury, wait until the pipes and internal parts return to their normal

temperature. Alternatively, if access is required, be sure to wear appropriate safety

gloves.

2.3 Transport, storage and handling warnings

The heat pump must be transported, handled and stored vertically. Tipping the machine

may cause the compressor or other components damage.

Do not twist, loosen or pull the external electric cables of the heat pump. Do not insert

any sharp objects through the fan grille or into the fan itself.

Do not wash the interior of the heat pump with water as this may result in electric shock

or fire. For any cleaning and /or maintenance operations, disconnect the main power

supply.

2.4 Freeze protection warnings

The heat pump is a machine that is installed in the exterior of the house, so that it will be

exposed to the extreme climatic conditions of cold in the periods of frost. Due to this, it is

of paramount importance that this type of machine is protected against such frost. The

freezing of the water inside the heat pump causes the heat pump to breakdown, with the

subsequent interruption of its operation and major economic expenses involving its

repair.

It is mandatory to use a safety system in the installation to prevent the freezing of the

water in the machine. We propose the use of glycol in the water circuit of the heat pump,

or some antifreeze valve system to empty the installation in conditions of low

temperatures. Carefully read the “Freeze Protection” section in this manual for more

6Technical Manual - Multifunctional Heat Pump R290

detailed information on these systems. We will not cover damages caused by the lack of

any of these antifreeze safety systems.

The electronic controller of the heat pump has a function for protection against the

freezing of the water in its interior in periods of frost. For this function to remain active

and on alert, the heat pump must be connected to the mains and have a power supply,

even if it is switched off or not in use.

A water filter should be installed in the installation, in order to avoid obstructions in the

water circuit of the heat pump. It must be installed in the return circuit of the heat pump

and MUST be installed before filling and circulating the water through the installation.

The water filter should be checked and cleaned, if necessary, at least once a year. IN

new installations, however, it is advisable to check it within the first few months of its

commissioning.

3 SYSTEM DESCRIPTION

1) The unit is a monoblock (single unit) air/water heat pump, specially designed for

the colder climate. There is no need for bore holes and usually the system can be

installed within 1 day.

2) The unit can both heat hot water effectively at high outdoor temperatures and give

a high output to the heating system at low outdoor temperatures. If the outdoor

temperature drops to a level lower than minus 0°C (factory setting), the auxiliary

heater switches on to ensure the heat pump unit works normally. The unit is also

capable of cooling in the summer. The heat pump controller is an intelligent wired

system.

3) The unit is rated as 6KW/9KW/12KW/16KW. The Material/components are chosen

to provide a long service life and to fully withstand harsh outdoor conditions.

4) The unit has two different installation options:

Space heating/cooling + DHW (Domestic hot water)

Space heating/cooling only or DHW only

Multifunctional Heat Pump R290

Technical Manual - Multifunctional Heat Pump R290

4 INSTALLATION

4.1 General points for installation engineer

4.1.1 Preparation before installation

1) Make sure the site is large enough to hold all the equipment and has enough

operation space.

2) Measure the hoisting path to ensure that the path to the installation site is

unobstructed and prevent the equipment from reaching the site during

Installation.

3) Confirm that the power meter capacity and the wire capacity are sufficient and

the phase (three-phase, two-phase) meets the requirements.

4) Plan the layout of the equipment according to the customer’s site. And strive to

have the shortest and the straightest water pipe and enough space for

operation and maintenance.

5) For the heat pump with side outlet wind, consider the local wind direction and

choose a reasonable installation direction to avoid the wind direction being

opposite.

6) Current regulations require the heating installation to be inspected before it is

commissioned. The inspection must be carried out by a suitably qualified person

and should be documented. If the heat pump is replaced, the installation must be

inspected again. In the event of installation with unvented (closed) heating

systems, make sure the pipeline has an exhaust valve (an automatic air exhaust

valve is included in the heat pump). If necessary, installation engineer may add

additional air exhaust valves to the pipeline.

4.1.2 Sitting the heat pump

1) The heat pump should be firmly fixed to a base, preferably a concrete base，It is

the most suitable that the right end is 5-10mm higher than the left end. As shown

below:

8Technical Manual - Multifunctional Heat Pump R290

2) The receiving surface of the device must:

Allow a solid fixation (Preferably concrete).

Fully support its weight.

Have a permeable area below the condensate drainage hole (earth, gravel bed,

sand, etc).

Do not transmit any vibration to the home, recommending the installation of the

anti-vibration dampers supplied with the heat pump.

3) In case of installing the device on wall mounts, it will be especially important to

isolate the machine from the transmission of vibrations and noise inside the

house, it may be necessary to install more suitable anti-vibration dampers for the

wall mount in addition to those supplied with the heat pump. Nevertheless, the

installation on the ground is the most advisable.

4) Straighten the heat pump well to ensure that the condensate water cannot exit

through any paths other than the intended drain hole.

5) Fasten it firmly using 4 sets of M12 bolts suitable for the base material, with nuts

and washers (available on the market). Make sure that the protruding distance of

the bolt does not exceed 10mm inside the metallic support of the device(leg).

≥100mm

Multifunctional Heat Pump R290

Technical Manual - Multifunctional Heat Pump R290

4.1.3 Location requirements between machine and building

1) The heat pump must be installed exclusively outside the home and, where

possible, in a completely clear area. If a protection is needed around the

appliance, it should have wide openings on the 4 sides and the installation

separations indicated in the following figure must be respected. No obstacle

should prevent the circulation of air through the evaporator and the fan outlet.

Min. separations for the installation of a unit(mm)

10 Technical Manual - Multifunctional Heat Pump R290

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