Mitsubishi Electric m-MOCU-G02-050 User manual

For use with R410A
Outdoor Unit For IT Cooling Application
OUTDOOR UNIT
m-MOCU-G02-050
<ORIGINAL>
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
INSTALLATIONSHANDBUCH
Zum sicheren und ordnungsgemäßen Gebrauch der Klimageräte das Installationshandbuch gründlich durchlesen.
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MANUEL D’INSTALLATION
Veuillez lire le manuel d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous assurer d’une utilisation correcte.
MANUAL DE INSTALACIÓN
Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de aire acondicionado.
MANUALE DI INSTALLAZIONE
Per un uso sicuro e corretto, leggere attentamente questo manuale di installazione prima di installare il condizionatore d’aria.
INSTALLATIEHANDLEIDING
Voor een veilig en juist gebruik moet u deze installatiehandleiding grondig doorlezen voordat u de airconditioner installeert.
MANUAL DE INSTALAÇÃO
Para segurança e utilização correctas, leia atentamente este manual de instalação antes de instalar a unidade de ar condicionado.
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INSTALLATIONSHANDBOK

INSTALLATIONSMANUAL
Læs venligst denne installationsmanual grundigt, før De installerer airconditionanlægget, af hensyn til sikker og korrekt anvendelse.
INSTALLASJONSHÅNDBOK
For sikker og riktig bruk, skal du lese denne installasjonshåndboken nøye før du installerer klimaanlegget.
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CONTENTS
1. Safety precautions ················································································ 2
1-1. General precautions...............................................................................................................2
1-2. Precautions for transporting the unit......................................................................................3
1-3. Precautions for unit installation..............................................................................................4
1-4. Precautions for piping work....................................................................................................4
1-5. Precautions for electrical wiring .............................................................................................5
1-6. Precautions for relocating or repairing the unit ......................................................................5
1-7. Additional precautions............................................................................................................6
2. About the product ················································································· 8
3. Combination of outdoor units ································································· 8
4. Specifications······················································································· 8
5. Package contents·················································································· 8
6. Transporting the unit ············································································· 9
7. Installation location ··············································································10
7-1. Single unit installation ..........................................................................................................10
7-2. Multiple unit installation........................................................................................................ 11
8. Foundation work ··················································································13
9. Refrigerant piping work ········································································15
9-1. Restrictions ..........................................................................................................................15
9-2. Pipe selection.......................................................................................................................17
9-3. Twinning kit selection...........................................................................................................18
9-4. Pipe connection example.....................................................................................................18
9-5. Piping connections and valve operations ............................................................................20
9-6. Air-tightness test ..................................................................................................................22
9-7. Thermal insulation for pipes.................................................................................................23
9-8. Evacuation of the system.....................................................................................................25
9-9. Additional refrigerant charge................................................................................................26
10. Electrical work ···················································································28
10-1. Before electrical work.........................................................................................................28
10-2. Power cables and device capacity.....................................................................................28
10-3. Control cable specifications ...............................................................................................30
10-4. System configuration .........................................................................................................30
10-5. Wiring connections in the control box ................................................................................31
10-6. Address setting ..................................................................................................................33
11. Test run ·····························································································34
11-1. Before a test run.................................................................................................................34
11-2. Function setting..................................................................................................................35
11-3. Operation characteristics in relation to the refrigerant charge ...........................................35
11-4. Operation check.................................................................................................................35
12. Inspection and maintenance ································································36
13. Rating plate information ······································································37
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1. Safety precautions
►Read and observe the safety precautions below and the instructions provided on the
labels affixed to the unit.
►Retain this manual for future reference. Make sure that this manual is passed on to the
end users.
►All refrigerant piping work, electrical work, air-tightness test, and brazing work must be
performed by qualified personnel.
►Incorrect use may result in serious injury.
: indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
: indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.
: addresses practices not related to personal injury, such as product
and/or property damage.
1-1. General precautions
Do not use any refrigerant other than the type indicated in the manuals for the unit and on
the nameplate.
- Doing so will cause the unit or pipes to burst, or result in an explosion or fire during use, during
repairs, or at the time of disposal of the unit.
- It may also be in violation of applicable laws.
- MITSUBISHI ELECTRIC HYDRONICS & IT COOLING SYSTEMS S.p.A. cannot be held
responsible for malfunctions or accidents resulting from the use of the wrong type of refrigerant.
Do not use the unit in an unusual environment.
- If the unit is used in areas exposed to large amounts of oil, steam, organic solvents, or corrosive
gases (such as ammonia, sulfuric compounds, or acids), or areas where acidic/alkaline solutions
or special chemical sprays are used frequently, it may significantly reduce the performance and
corrode the internal parts, resulting in refrigerant leakage, water leakage, injury, electric shock,
malfunction, smoke, or fire.
Do not change the settings of the safety or protection devices.
- Forcing the unit to operate by disabling the safety devices, such as the pressure switch or the
thermal switch, may result in bursting, fire, or explosion.
- Operating the unit with a safety device whose settings have been changed may result in
bursting, fire, or explosion.
- Using safety devices other than those specified by MITSUBISHI ELECTRIC HYDRONICS & IT
COOLING SYSTEMS S.p.A. may result in bursting, fire, or explosion.
Do not alter or modify the unit.
- Doing so will result in refrigerant leakage, water leakage, serious injury, electric shock, or fire.
Do not wet the electrical parts.
- Doing so may result in current leakage, electric shock, malfunction, or fire.
Do not touch the electrical parts, switches, or buttons with wet fingers.
- Doing so may result in electric shock, malfunction, or fire.
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Do not touch the refrigerant pipes and refrigerant line components with bare hands during
and immediately after operation.
- The refrigerant in the pipes will be very hot or very cold, resulting in frostbite or burns.
Do not touch the electrical parts with bare hands during and immediately after operation.
- Doing so may result in burns.
Ventilate the room while servicing the unit.
- If the refrigerant leaks, oxygen deficiency may result. If the leaked refrigerant comes in contact
with a heat source, toxic gas will be generated.
If you notice any abnormality (e.g., a burning smell), stop the operation, turn off the power
switch, and consult your dealer.
- Continuing the operation may result in electric shock, malfunction, or fire.
Properly install all required covers and panels on the terminal box and the control box.
- If dust or water enters the unit, this may result in electric shock or fire.
Periodically check the unit base for damage.
- If the damage is left uncorrected, the unit will fall and cause serious injury.
Consult your dealer for the proper disposal of the unit.
- The refrigerant oil and the refrigerant in the unit will pose a risk of environmental pollution, fire,
or explosion.
Children should be supervised to ensure that they do not play with the appliance.
Do not operate the unit with the panels and guards removed.
- Rotating, hot, or high-voltage parts may cause injury, electric shock, or fire.
Do not touch fans, heat exchanger fins, or the sharp edges of components with bare
hands.
- Doing so may result in injury.
Wear protective gloves when working on the unit.
- Failure to do so may result in injury.
1-2. Precautions for transporting the unit
When lifting the unit, pass the slings through the four designated sling holes.
- Improper lifting will cause the unit to topple or fall, resulting in serious injury.
Do not lift the unit with the PP bands that are used on some products.
- Doing so may result in injury.
Observe the restrictions on the maximum weight that a person can lift, which is specified
in local regulations.
- Failure to do so may result in injury.
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