Mitsubishi Electric CITY MULTI PURY-P-ZKMU-A User manual

Air-Conditioners For Building Application
OUTDOOR UNIT
PURY-P-ZKMU-A(-BS) For use with R410A
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
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.
<ORIGINAL>
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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..............................................................................................3
1-4. Precautions for piping work....................................................................................................4
1-5. Precautions for electrical wiring.............................................................................................4
1-6. Precautions for relocating or repairing the unit......................................................................5
1-7. Additional precautions............................................................................................................5
2. About the product·········································································································7
3. Combination of outdoor units ························································································7
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 ········································································································12
9. Refrigerant piping work·······························································································13
9-1. Restrictions..........................................................................................................................13
9-2. Pipe selection.......................................................................................................................14
9-3. Twinning kit selection...........................................................................................................14
9-4. Pipe connection example.....................................................................................................15
9-5. Piping connections and valve operations ............................................................................17
9-6. Air-tightness test ..................................................................................................................21
9-7. Thermal insulation for pipes.................................................................................................21
9-8. Evacuation of the system.....................................................................................................23
9-9. Additional refrigerant charge................................................................................................24
10. Electrical work··········································································································28
10-1. Before electrical work.........................................................................................................28
10-2. Power cables and device capacity.....................................................................................28
10-3. Control cable specifications...............................................................................................29
10-4. System configuration .........................................................................................................30
10-5. Wiring connections in the control box................................................................................32
10-6. Address setting ..................................................................................................................34
11. Test run····················································································································35
11-1. Before a test run.................................................................................................................35
11-2. Function setting..................................................................................................................35
11-3. Operation characteristics in relation to the refrigerant charge ...........................................36
11-4. Operation check.................................................................................................................36
12. Inspection and maintenance·······················································································36
13. Rating plate information ····························································································37
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1. Safety precautions
ŹRead and observe the safety precautions below and the instructions provided on the labels affixed to the
unit.
ŹRetain this manual for future reference. Make sure that this manual is passed on to the end users.
ŹAll refrigerant piping work, electrical work, air-tightness test, and brazing work must be performed by
qualified personnel.
ŹIncorrect 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 CORPORATION 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 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.
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.
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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.
1-3. Precautions for unit installation
Do not install the unit where combustible gas may leak.
- If combustible gas accumulates around the unit, fire or explosion may result.
Do not allow children to play with the packing materials.
- Suffocation or serious injury may result.
Cut up the packing materials before disposal.
All installation work must be performed by qualified personnel in accordance with this manual.
- Improper installation may result in refrigerant leakage, water leakage, serious injury, electric shock, or fire.
If the air conditioner is installed in a small room, take measures to prevent the refrigerant concentration from
exceeding the safety limit in the event of refrigerant leakage.
- Consult your dealer regarding the appropriate measures to prevent the allowable concentration from being
exceeded. If the refrigerant leaks and the allowable concentration is exceeded, hazards due to a lack of oxygen in
the room will result.
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Install the unit in accordance with the instructions to minimize the risk of damage from earthquakes and
strong winds.
- Improper installation will cause the unit to topple, resulting in serious injury.
The unit must be securely installed on a structure that can sustain its weight.
- Failure to do so will cause the unit to fall, resulting in serious injury.
Seal all openings around pipes and wires to keep out small animals, rainwater, or snow.
- Failure to do so may result in current leakage, electric shock, or damage to the unit.
1-4. Precautions for piping work
Before heating the brazed sections, remove the gas and oil that are trapped in the pipes.
- Failure to do so may generate fire, resulting in serious injury.
Do not purge the air using refrigerant. Use a vacuum pump to evacuate the system.
- Residual gas in the refrigerant lines will cause bursting of the pipes or an explosion.
Do not use oxygen, flammable gas, or a refrigerant containing chlorine for air-tightness testing.
- Doing so may result in an explosion. Chlorine will deteriorate the refrigerant oil.
When installing or relocating the unit, do not allow air or any substance other than the specified refrigerant
to enter the refrigerant lines.
- Any substance other than the specified refrigerant may cause abnormally high pressure in the refrigerant lines,
resulting in bursting of the pipes or an explosion.
After the installation has been completed, check for refrigerant leaks.
- If the refrigerant leaks, oxygen starvation may result. If the leaked refrigerant comes in contact with a heat source,
toxic gas will be generated.
1-5. Precautions for electrical wiring
Include some slack in the power cables.
- Failure to do so may break or overheat the cables, resulting in smoke or fire.
Connections must be made securely and without tension on the terminals.
- Improperly connected cables may break, overheat, or cause smoke or fire.
Tighten all terminal screws to the specified torque.
- Loose screws and contact failure may result in smoke or fire.
Electrical work must be performed by qualified personnel in accordance with local regulations and the
instructions provided in this manual. Only use the specified cables and dedicated circuits.
- Inadequate power source capacity or improper electrical work will result in electric shock, malfunction, or fire.
Install an inverter circuit breaker on the power supply of each unit.
- Failure to do so may result in electric shock or fire.
Only use properly rated breakers (an earth leakage breaker, local switch <a switch + fuse that meets local
electrical codes>, or overcurrent breaker).
- Failure to do so may result in electric shock, malfunction, smoke, or fire.
Only use standard power cables of sufficient capacity.
- Failure to do so may result in current leakage, overheating, smoke, or fire.
Proper grounding must be provided by qualified personnel.
- Improper grounding may result in electric shock, fire, explosion, or malfunction due to electrical noise. Do not
connect the ground wire to gas or water pipes, lightning rods, or telephone ground wires.
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After the wiring work has been completed, measure the insulation resistance, and make sure that it reads at
OHDVW0ȍ
- Failure to do so may result in electric leakage, malfunction, or fire.
1-6. Precautions for relocating or repairing the unit
Only qualified personnel must relocate or repair the unit. Do not attempt to disassemble or alter the unit.
- Failure to do so will result in refrigerant leakage, water leakage, serious injury, electric shock, or fire.
Do not service the unit in the rain.
- Doing so may result in electric leakage, electric shock, wire shorting, malfunction, smoke, or fire.
1-7. Additional precautions
Do not turn off the power immediately after stopping operation.
- Wait for at least five minutes after the unit has stopped before turning off the power. Failure to do so may result in
drain water leakage or the mechanical failure of sensitive parts.
The unit must be periodically inspected by a dealer or qualified personnel.
- If dust or dirt accumulates inside the unit, the drain pipes may become clogged, and water leakage from the pipes
may wet the surroundings and generate odours.
Turn on the power at least 12 hours before starting operation. Keep the power turned on throughout the
operating season.
- Insufficient energizing will result in malfunction.
Do not use the air conditioner for special purposes (e.g. keeping food, animals, plants, precision devices, or
art objects in a room).
- Such items could be damaged or deteriorated.
Collect the refrigerant and properly dispose of it in accordance with local regulations.
Do not install the unit on or over items that are subject to water damage.
- When the room humidity exceeds 80% or if the drain pipe is clogged, condensation may collect and drip from the
indoor unit onto the ceiling or floor.
Drain piping must be installed by a dealer or qualified personnel to ensure proper drainage.
- Improper drain piping may cause water leakage, resulting in damage to furniture and other surroundings.
Take appropriate measures against electrical noise interference when installing the unit in hospitals or radio
communication facilities.
- Inverter, high-frequency medical, or wireless communication equipment as well as power generators may cause the
air conditioning system to malfunction. The air conditioning system may also adversely affect the operation of these
types of equipment by creating electrical noise.
Insulate pipes to prevent condensation.
- Condensation may collect and drip from the unit onto the ceiling or floor.
Keep the service valves closed until refrigerant charging is completed.
- Failure to do so will damage the unit.
Place a wet towel on the service valves before brazing the pipes to keep the temperature of the valves from
rising above 120ºC (248ºF).
- Failure to do so may result in equipment damage.
Keep the flame out of contact with the cables and metal sheet when brazing the pipes.
- Failure to do so may result in burnout or malfunction.
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Use the following tools specifically designed for use with the specified refrigerant: Gauge manifold, charge
hose, gas leak detector, check valve, refrigerant charge base, vacuum gauge, and refrigerant recovery
equipment.
- Gas leak detectors for conventional refrigerants will not react to a refrigerant that does not contain chlorine.
- If the specified refrigerant is mixed with water, refrigerant oil, or another refrigerant, the refrigerant oil will deteriorate
and the compressor will malfunction.
Use a vacuum pump with a check valve.
- If the vacuum pump oil flows back into the refrigerant lines, the refrigerant oil may deteriorate and the compressor
may malfunction.
Keep tools clean.
- If dust, dirt, or water accumulates on the charging hose or the flare processing tool, the refrigerant will deteriorate
and the compressor will malfunction.
Use refrigerant piping made of phosphorus deoxidized copper (copper and copper alloy seamless pipes) that
meets local requirements. Pipe joints should also meet local requirements. Keep the inner and outer surfaces
of the pipes clean and free of sulphur, oxides, dust/dirt, shaving particles, oils, moisture, or any other
contaminants.
- Contaminants on the inside of the refrigerant piping will cause the refrigerant oil to deteriorate and cause the
compressor to malfunction.
Store pipes indoors, and keep both ends of the pipes sealed until just before making a flare connection or
brazing. (Store elbows and other joints in plastic bags.)
- If dust, dirt, or water enters the refrigerant lines, the refrigerant oil will deteriorate and the compressor will
malfunction.
Braze the pipes with a nitrogen purge to avoid oxidation.
- Oxidized flux inside the refrigerant pipes will cause the refrigerant oil to deteriorate and cause the compressor to
malfunction.
Do not use existing refrigerant piping.
- The old refrigerant and refrigerant oil in the existing piping contain a large amount of chlorine, which will cause the
refrigerant oil in the new unit to deteriorate and cause the compressor to malfunction.
Charge refrigerant in a liquid state.
- Charging refrigerant in the gaseous state will change the composition of the refrigerant and lead to a performance
drop.
Do not use a charging cylinder when charging refrigerant.
- The use of a charging cylinder may change the composition of the refrigerant and lead to a performance drop.
If a large electric current flows due to a malfunction or faulty wiring, earth-leakage breakers on the unit side
and on the upstream side of the power supply system could both operate. Depending on the importance of
the system, separate the power supply system or take protective coordination of breakers.
This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or
for commercial use by lay persons.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for their safety.
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2. About the product
・The outdoor unit described in this manual is air-conditioning equipment that is designed only for human comfort.
・The numeric values in the unit model name (e.g., PURY-P***ZKMU-A(-BS)) indicate the capacity index of the unit.
・This unit uses R410A refrigerant.
3. Combination of outdoor units
Outdoor unit model Combination of outdoor units
PURY-P72ZKMU-A(-BS) - -
PURY-P96ZKMU-A(-BS) - -
PURY-P120ZKMU-A(-BS) - -
PURY-P144ZKMU-A(-BS) - -
PURY-P168ZSKMU-A(-BS) PURY-P96ZKMU-A(-BS) PURY-P72ZKMU-A(-BS)
PURY-P192ZSKMU-A(-BS) PURY-P96ZKMU-A(-BS) PURY-P96ZKMU-A(-BS)
PURY-P216ZSKMU-A(-BS) PURY-P120ZKMU-A(-BS) PURY-P96ZKMU-A(-BS)
PURY-P240ZSKMU-A(-BS) PURY-P120ZKMU-A(-BS) PURY-P120ZKMU-A(-BS)
PURY-P264ZSKMU-A(-BS) PURY-P144ZKMU-A(-BS) PURY-P120ZKMU-A(-BS)
PURY-P288ZSKMU-A(-BS) PURY-P144ZKMU-A(-BS) PURY-P144ZKMU-A(-BS)
* "Twinning Kit" is required to connect combination units on site.

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4. Specifications
Model PURY-P72ZKMU-A PURY-P96ZKMU-A
Sound level (50/60 Hz) 58 dB <A> 58 dB <A>
External static pressure 0 Pa*2
Indoor unit Total capacity 50% to 150%*1 Model 06 to 96
Quantity R2 system 1 to 18 1 to 24
Temperature range
(Cooling) Indoor W.B. +15.0°C to +24.0°C (+59.0°F to +75.0°F)
Outdoor D.B. -5.0°C to +46.0°C (+23.0°F to +115.0°F)
Temperature range
(Heating) Indoor D.B. +15.0°C to +27.0°C (+59.0°F to +81.0°F)
Outdoor W.B. -20.0°C to +15.5°C (-4.0°F to +60.0°F)
Model PURY-P120ZKMU-A PURY-P144ZKMU-A PURY-P168ZSKMU-A PURY-P192ZSKMU-A
Sound level (50/60 Hz) 60 dB <A> 61 dB <A> 61 dB <A> 61 dB <A>
External static pressure 0 Pa*2
Indoor unit Total capacity 50% to 150%*1 Model 06 to 96
Quantity R2 system 1 to 30 1 to 36 1 to 42 1 to 48
Temperature range
(Cooling) Indoor W.B. +15.0°C to +24.0°C (+59.0°F to +75.0°F)
Outdoor D.B. -5.0°C to +46.0°C (+23.0°F to +115.0°F)
Temperature range
(Heating) Indoor D.B. +15.0°C to +27.0°C (+59.0°F to +81.0°F)
Outdoor W.B. -20.0°C to +15.5°C (-4.0°F to +60.0°F)
Model PURY-P216ZSKMU-A PURY-P240ZSKMU-A PURY-P264ZSKMU-A PURY-P288ZSKMU-A
Sound level (50/60 Hz) 62 dB <A> 63 dB <A> 63.5 dB <A> 64 dB <A>
External static pressure 0 Pa*2
Indoor unit Total capacity 50% to 150%*1 Model 06 to 96
Quantity R2 system 2 to 50 2 to 50 2 to 50 2 to 50
Temperature range
(Cooling) Indoor W.B. +15.0°C to +24.0°C (+59.0°F to +75.0°F)
Outdoor D.B. -5.0°C to +46.0°C (+23.0°F to +115.0°F)
Temperature range
(Heating) Indoor D.B. +15.0°C to +27.0°C (+59.0°F to +81.0°F)
Outdoor W.B. -20.0°C to +15.5°C (-4.0°F to +60.0°F)
*1 The maximum total capacity of indoor units operating simultaneously is 150%.
*2 To enable the high static pressure setting, set the dipswitch on the main board as follows.
SW6-4: ON
SW6-5: OFF (60 Pa) or ON (30 Pa)
5. Package contents
Band
Model
P72 2 pcs.
P96 2 pcs.
P120 2 pcs.
P144 2 pcs.