Mitsubishi CMB-P-NU-G1, CMB-P-NU-HA1, CMB-P-NU-GA1, CMB-P-NU-GB1, CMB-P-NU-HB1 Installation Manual
Air-Conditioners For Building Application
INDOOR UNIT
CMB-P-NU-G1
CMB-P-NU-GA1 (MAIN BC CONTROLLER)
CMB-P-NU-GB1 (SUB BC CONTROLLER)
CMB-P-NU-HA1 (MAIN BC CONTROLLER)
CMB-P-NU-HB1 (SUB BC CONTROLLER)
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.
GBF
Contents
1. Safety precautions ........................................................................................2
1.1. Before installation and electric work ............................................ 2
1.2. Precautions for devices that use R410A refrigerant .................... 2
1.3. Before installation ........................................................................ 3
1.4. Before installation (relocation) - electrical work ........................... 3
1.5. Before starting the test run .......................................................... 3
2. Items to be used ........................................................................................... 3
2.1. Package contents ........................................................................ 3
2.2. Commercially available items ...................................................... 3
3. Selecting an installation site ......................................................................... 4
3.1. About the product ........................................................................ 4
3.2. Installation site ............................................................................ 4
3.3. Securing installation and service space ...................................... 4
3.4. Checking the installation site ....................................................... 5
1. Safety precautions
1.1. Before installation and electric work
Before installing the unit, make sure you read all the “Safety
u
precautions”.
The “Safety precautions” provide very important points
u
regarding safety. Make sure you follow them.
GB
Symbols used in the text
Warning:
Describes precautions that should be observed to prevent danger of injury
or death to the user.
Caution:
Describes precautions that should be observed to prevent damage to the unit.
Symbols used in the illustrations
:
Indicates an action that must be avoided.
:
Indicates that important instructions must be followed.
:
Indicates a part which must be grounded.
:
Beware of electric shock. (This symbol is displayed on the main unit label.) <Color: Yellow>
Warning:
Carefully read the labels afxed to the main unit.
HIGH VOLTAGE WARNING:
• Control box houses high-voltage parts.
• When opening or closing the front panel of the control box, do not let it
come into contact with any of the internal components.
• Before inspecting the inside of the control box, turn off the power, keep
the unit off for at least 10 minutes.
Warning:
• Ask the dealer or an authorized technician to install the air conditioner.
- Improper installation by the user may result in water leakage, electric
shock, or re.
• Install the unit at a place that can withstand its weight.
- Failure to do so may cause the unit to fall down, resulting in injuries and
damage to the unit.
• Use the specied cables for wiring. Make the connections securely so
that the outside force of the cable is not applied to the terminals.
- Inadequate connection and fastening may generate heat and cause a re.
• Prepare for earthquakes and install the unit at the specied place.
- Improper installation may cause the unit to fall down and result in injury
and damage to the unit.
• Always use accessories specied by Mitsubishi Electric.
- Ask an authorized technician to install the accessories. Improper installa-
tion by the user may result in water leakage, electric shock, or re.
• Never attempt to repair the unit without the proper qualications. If the
air conditioner must be repaired, consult the dealer, contractor or quali-
ed Refrigeration Engineer.
- If the unit is repaired improperly, water leakage, electric shock, or re may
result.
• If refrigerant gas leaks during installation work, ventilate the room.
- If the refrigerant gas comes into contact with a ame, poisonous gases will
be released.
• Install the air conditioner according to this Installation Manual.
- If the unit is installed improperly, water leakage, electric shock, or re may
result.
4. Installing BC controller .................................................................................8
4.1. Installing BC controllers .............................................................. 8
5. Connecting refrigerant pipes and drain pipes...............................................8
5.1. Pipe connecting method .............................................................. 8
5.2. Connecting refrigerant pipes ....................................................... 9
5.3. Refrigerant piping work ............................................................. 10
5.4. Insulating refrigerant pipes ........................................................ 11
5.5. Drain piping work ...................................................................... 11
6. Electrical work ............................................................................................ 11
7. Setting addresses and operating units ....................................................... 12
8. Checklist after installation ...........................................................................12
9. Test run ....................................................................................................... 12
10. Important information to be passed on to the end users ............................ 12
• Have all electric work done by a licensed electrician according to “Electric Facility Engineering Standard” and “Interior Wire Regulations”and
the instructions given in this manual and always use a dedicated power
supply.
- If the power source capacity is inadequate or electric work is performed
improperly, electric shock and re may result.
• Securely install the cover of control box.
- If the cover is not installed properly, dust or water may enter the outdoor
unit and re or electric shock may result.
• When installing and moving the air conditioner to another site, do not
charge it with a refrigerant different from the refrigerant specied on
the unit.
- If a different refrigerant or air is mixed with the original refrigerant, the re-
frigerant cycle may malfunction and the unit may be damaged.
• If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration from exceeding the safety
limit if the refrigerant should leak.
- Consult the dealer regarding the appropriate measures to prevent the
safety limit from being exceeded. Should the refrigerant leak and cause
the safety limit to be exceeded, hazards due to lack of oxygen in the room
could result.
• When moving and reinstalling the air conditioner, consult the dealer or
an authorized technician.
- If the air conditioner is installed improperly, water leakage, electric shock,
or re may result.
• After completing installation work, make sure that refrigerant gas is not
leaking.
- If the refrigerant gas leaks and is exposed to a fan heater, stove, oven, or
other heat source, it may generate noxious gases.
• Do not reconstruct or change the settings of the protection devices.
- If the pressure switch, thermal switch, or other protection device is shorted
or operated forcibly, or parts other than those specied by Mitsubishi Electric are used, re or explosion may result.
• To dispose of this product, consult your dealer.
• The installer and system specialist shall secure safety against leakage
according to local regulation or standards.
- Choose the appropriate wire size and the switch capacities for the main
power supply described in this manual if local regulations are not available.
• Pay special attention to the place of installation, such as basement, etc.
where refrigeration gas can accumulate, since refrigerant is heavier
than the air.
1.2. Precautions for devices that use
R410A refrigerant
Caution:
• Do not use existing refrigerant piping.
- The old refrigerant and refrigerant oil in the existing piping contains a large
amount of chlorine which may cause the refrigerant oil of the new unit to
deteriorate.
- R410A is a high-pressure refrigerant and can cause the existing piping to
burst.
• Use refrigerant piping made of phosphorus deoxidized copper and
copper alloy seamless pipes and tubes. In addition, be sure that the
inner and outer surfaces of the pipes are clean and free of hazardous
sulphur, oxides, dust/dirt, shaving particles, oils, moisture, or any other
contaminant.
- Contaminants on the inside of the refrigerant piping may cause the refrig-
erant residual oil to deteriorate.
2
• Store the piping to be used during installation indoors and keep both
ends of the piping sealed until just before brazing. (Store elbows and
other joints in a plastic bag.)
- If dust, dirt, or water enters the refrigerant cycle, deterioration of the oil and
compressor failure may result.
• Apply a small amount of ester oil, ether oil, or alkyl benzene to ares. (for
indoor unit)
- Inltration of a large amount of mineral oil may cause the refrigerant oil to
deteriorate.
• Use liquid refrigerant to ll the system.
- If gas refrigerant is used to ll the system, the composition of the refriger-
ant in the cylinder will change and performance may drop.
• Do not use a refrigerant other than R410A.
- If another refrigerant (R22, etc.) is mixed with R410A, the chlorine in the
refrigerant may cause the refrigerant oil to deteriorate.
• Use a vacuum pump with a reverse ow check valve.
- The vacuum pump oil may ow back into the refrigerant cycle and cause
the refrigerant oil to deteriorate.
• Do not use the following tools that are used with conventional refrigerants.
(Gauge manifold, charge hose, gas leak detector, reverse ow check
valve, refrigerant charge base, refrigerant recovery equipment)
- If the conventional refrigerant and refrigerant oil are mixed in the R410A,
the refrigerant may deteriorate.
- If water is mixed in the R410A, the refrigerant oil may deteriorate.
- Since R410A does not contain any chlorine, gas leak detectors for conven-
tional refrigerants will not react to it.
• Do not use a charging cylinder.
- Using a charging cylinder may cause the refrigerant to deteriorate.
• Do not use antioxidant or leak-detection additive.
• Be especially careful when managing the tools.
- If dust, dirt, or water gets into the refrigerant cycle, the refrigerant may de-
teriorate.
1.3. Before installation
Caution:
• Do not install the unit where combustible gas may leak.
- If the gas leaks and accumulates around the unit, an explosion may result.
• Do not use the air conditioner where food, pets, plants, precision instruments, or artwork are kept.
- The quality of the food, etc. may deteriorate.
• Do not use the air conditioner in special environments.
- Oil, steam, sulfuric smoke, etc. can signicantly reduce the performance of
the air conditioner or damage its parts.
• When installing the unit in a hospital, communication station, or similar
place, provide sufcient protection against noise.
- Inverter equipment, private power generator, high-frequency medical
equipment, or radio communication equipment may cause the air conditioner to operate erroneously, or fail to operate. On the other hand, the
air conditioner may affect such equipment by creating noise that disturbs
medical treatment or image broadcasting.
• Do not install the unit on or over things that are subject to water damage.
- When the room humidity exceeds 80 % or when the drain pipe is clogged,
condensation may drip from the indoor unit or BC controller. Perform collective drainage work together with the outdoor unit, as required.
1.4. Before installation (relocation) - electrical work
Caution:
• Ground the unit.
- Do not connect the ground wire to gas or water pipes, lightning rods, or
telephone ground lines. Improper grounding may result in electric shock.
• Install the power cable so that tension is not applied to the cable.
- Tension may cause the cable to break and generate heat and cause a re.
• Install a leak circuit breaker, as required.
- If a leak circuit breaker is not installed, electric shock may result.
• Use power line cables of sufcient current carrying capacity and rating.
- Cables that are too small may leak, generate heat, and cause a re.
• Use only a circuit breaker and fuse of the specied capacity.
- A fuse or circuit breaker of a larger capacity, or the use of substitute simple
steel or copper wire may result in a general unit failure or re.
• Do not wash the air conditioner units.
- Washing them may cause an electric shock.
• Be careful that the installation base is not damaged by long use.
- If the damage is left uncorrected, the unit may fall and cause personal injury or property damage.
• Install the drain piping according to this Installation Manual to ensure
proper drainage. Wrap thermal insulation around the pipes to prevent
condensation.
- Improper drain piping may cause water leakage causing damage to furni-
ture and other possessions.
• Be very careful about transporting the product.
- One person should not carry the product. Its weight is in excess of 20 kg
[45 LBS].
- Some products use PP bands for packaging. Do not use any PP bands as
a means of transportation. It is dangerous.
• Safely dispose of the packing materials.
- Packing materials, such as nails and other metal or wooden parts, may
cause stabs or other injuries.
- Tear apart and throw away plastic packaging bags so that children will not
play with them. If children play with a plastic bag which has not been torn
apart, they face the risk of suffocation.
1.5. Before starting the test run
Caution:
• Turn on the power at least 12 hours before starting operation.
- Starting operation immediately after turning on the main power switch
can result in irreversible damage to internal parts. Keep the power switch
turned on during the operational season.
• Do not touch the switches with wet ngers.
- Touching a switch with wet ngers can result in an electric shock.
• Do not touch the refrigerant pipes during and immediately after operation.
- During and immediately after operation, the refrigerant pipes may be hot or
cold, depending on the condition of the refrigerant owing through the refrigerant piping, compressor, and other refrigerant cycle parts. Your hands
may suffer burns or frostbite if you touch the refrigerant pipes.
• Do not operate the air conditioner with the panels and guards removed.
- Rotating, hot, or high-voltage parts can cause injuries.
• Do not turn off the power immediately after stopping operation.
- Always wait at least 5 minutes before turning off the power. Otherwise,
drainage water leakage or mechanical failure of sensitive parts may occur.
GB
2. Items to be used
2.1. Package contents
The table below lists all the items and their quantities included in the package.
CMBP104NU-G1
P105NU-G1
P106NU-G1
P108NU-G1
P1010NU-G1
P1013NU-G1
Item Qty
Drain hose 1 1 1 1 1
1
Tie band 1 1 1 1 1
2
Hose band 1 1 1 1 1
3
Refrigerant
4
connection pipe
P1016NU-G1
CMBP108NU-GA1
P1010NU-GA1
P1013NU-GA1
P1016NU-GA1
3 3 8 1 8
Model name
CMBP104NU-GB1
P108NU-GB1
CMBP108NU-HA1
P1010NU-HA1
P1016NU-HA1
CMBP1016NU-HB1
2.2. Commercially available items
The table below lists the items not included in the package but required for installation, and their required quantity.
Hanging bolt ø10 or Anchor bolt M10 4
Nut 4
Washer 8
Double nuts 4
Insulating material 1
3
3. Selecting an installation site
200
]
3.1. About the product
• This unit uses R410A-type refrigerant.
• Piping for systems using R410A may be different from that for systems us-
ing conventional refrigerant because the design pressure in systems using
R410A is higher. Refer to the Data Book for more information.
• Some of the tools and equipment used for installation with systems that use
other types of refrigerant cannot be used with the systems using R410A. Refer to the Data Book for more information.
• Do not use the existing piping, as it contains chlorine, which is found in
conventional refrigerating machine oil and refrigerant. This chlorine will deteriorate the refrigerant machine oil in the new equipment. The existing piping
must not be used as the design pressure in systems using R410A is higher
than that in the systems using other types of refrigerant and the existing
pipes may burst.
3.2. Installation site
• Install the unit in a place not exposed to rain. The BC controller is designed
to be installed indoors.
• Install the unit with adequate space around it for servicing.
• Do not install the unit in a place that would result in the piping length restric-
tions being exceeded.
• Install the unit in a place not exposed to direct radiant heat from other heat
sources.
• Do not install the unit in any oily steamy place or near any machine that generates high frequencies. Doing so may cause a risk of re, erroneous opera-
tion or dew drop.
• Install the unit in a location where the noise from the unit will not be a prob-
GB
lem. (Install indoor unit and BC controller at least 5 m [16-3/8 ft] away from
each other when installed in a space with low background noise, e.g., hotel
rooms).
• Allow enough space and access to ensure water piping, refrigerant piping
and electrical wiring can be easily connected.
• Avoid places exposed to the generation, inow, accumulation or leakage of
ammable and sulfuric gases.
• Ensure a downward gradient of at least 1/100 for drain piping.
• Properly install the unit on a stable, load-bearing surface.
• Some combination of BC controller and outdoor unit cannot be used.
Refer to the table below for details.
Combination of BC controller and outdoor unit
Outdoor unit
G type GA type GB type HA type HB type
P72 to P126 A A A A A
P127 to P240 N/A A A A A
P241 to P288 N/A N/A A A A
1. For hanging from the ceiling
[Fig. 3.2.1]
BC controller
A:available N/A:Not available
3.3. Securing installation and service
space
1. For hanging from the ceiling
(This is a reference view showing the least installation space.)
[Fig. 3.3.1] (Unit: mm [in])
<Top view>
450 (17-23/32)
B
D
INDOOR UNIT SIDE
200
[7-7/8]
<Front view>
B
Inspection hole
A
Control box
C
A
*1 Dimensions with which pipe connection can be handled at site
Model name A B
CMB-P104NU-G1
CMB-P105NU-G1
CMB-P106NU-G1
CMB-P108NU-G1
CMB-P1010NU-G1
CMB-P1013NU-G1
CMB-P1016NU-G1
CMB-P108NU-GA1
CMB-P1010NU-GA1
CMB-P1013NU-GA1
CMB-P1016NU-GA1
CMB-P104NU-GB1
CMB-P108NU-GB1
CMB-P108NU-HA1
CMB-P1010NU-HA1
CMB-P1016NU-HA1
CMB-P1016NU-HB1
[7-7/8]
A
C
648
[25-17/32]
1098
[43-1/4]
1110
[43-23/32]
648
[25-17/32]
1110
[43-23/32]
1098
[43-1/4]
B
[27-9/16]
(700)
250
9-27/32
[9-27/32]
[2-17/32][2-17/32]
64*1
100
[3-15/16]
On the side of outdoor unit piping
B
On the side of indoor unit piping
D
-
200
[7-7/8]
-
200
[7-7/8]
-
• Provide an inspection hole 450 mm [17-23/32 in] square in the ceiling surface as shown in [Fig.3.2.1].
• Install the unit in a suitable location (such as in the ceiling of a corridor or in
the bathroom etc) away from places regularly occupied. Avoid installing in
the center of a room.
• Ensure a pull out strength of at least 60 kg [133 LBS] per bolt for hanging
bolts.
• Be sure to install BC controllers level.
Warning:
Be sure to install the unit in a place that can sustain the entire weight.
If there is a lack of strength, it may cause the unit to fall down, resulting in
an injury.
Caution:
Be sure to install the unit level.
4
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