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1. For hanging from the ceiling
[Fig. 2.2.1]
•
Provide an inspection hole 450 mm [17-23/32 in] square in the ceiling surface
as shown in [Fig. 2.2.1].
•
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.
2.3. Securing installation and service space
1. For hanging from the ceiling
(This is a reference view showing the least installation space.)
[Fig. 2.3.1]
<Top view>
A
450 (17-23/32)
C
B
D
INDOOR UNIT SIDE
200
[7-7/8]
A
<Front view>
B
A Inspection hole
C Control box
*1 Dimensions with which pipe connection can be handled at site
Model name
A
CMB-P104NU-G
CMB-P105NU-G
648
CMB-P106NU-G
[25-17/32]
CMB-P108NU-G
CMB-P1010NU-G
CMB-P1013NU-G
1098
[43-1/4]
CMB-P1016NU-G
CMB-P108NU-GA
CMB-P1010NU-GA
1110
[43-23/32]
CMB-P1013NU-GA
CMB-P1016NU-GA
CMB-P104NU-GB
648
[25-17/32]
CMB-P108NU-GB
1110
CMB-P1016NU-HA
[43-23/32]
1098
CMB-P1016NU-HB
[43-1/4]
4
(Unit: mm [in])
200
[7-7/8]
B
B On the side of outdoor unit piping
D On the side of indoor unit piping
B
-
200
[7-7/8]
-
200
[7-7/8]
-
2.4. Checking the installation site
Check that the difference of elevation between indoor and outdoor units and the
length of refrigerant piping are within the following limitations.
1. CMB-P104, 105, 106, 108, 1010, 1013, 1016G (In the case the outdoor unit
is 12.5-hp (P120 model) or less, and 16 or fewer ports are used.)
[Fig. 2.4.1]
A
I
A
H
a
C
A Outdoor unit
C Indoor unit
E Less than H=50 m [164 ft] (when the outdoor unit is higher than the indoor unit)
F Less than H1=40 m [131 ft] (when the outdoor unit is lower than the indoor unit)
G Twinning pipe (for Y Series) CMY-Y102S-G2
H Combined pipe (CMY-R160-J: optional)
I Less than 110 m [360 ft]
K Up to three units for 1 branch hole
Total capacity: less than 30 (but same in cooling/heating mode)
L Less than h1=15 m [49 ft] (10 m [32 ft] or less for 200, 250 unit type)
M Less than h2=15 m [49 ft]
Item
Total piping length
Longest piping length
Between outdoor unit and
BC controller
Between indoor units and BC controller
Between
Above outdoor unit
indoor and
outdoor units
Below outdoor unit
Between indoor units and BC controller
Between indoor units
Notes:
*1 Refer to "Restrictions on piping length" on P. 6.
*2 Please refer to the figure "Distance between BC controller and farthest
Indoor unit" when the distance between BC controller and farthest in-
door unit exceeds 40 m [131ft]. (Not applicable to the P96 model indoor
unit)
*3 The values in the parentheses show the maximum piping length to be
followed when the connection capacity of the indoor unit is 72 or more.
*4 In the system to which indoor units of the P72 model or above are con-
nected, neither a branch joint nor a branch header may be used.
*5 Do not connect the P72 or P96 models of indoor units and other models
of indoor units at the same port.
*6 Indoor units that are connected to the same branch joint cannot be si-
multaneously operated in different operation modes.
*7 When connecting multiple indoor units to one branch port, those indoor
units must be installed in the same room.
B
J
G
b
B
c
d
e
C
C
C
D
K
C
B BC controller
D P72 - P96 model: 2 ports merged.
J Less than 40 m [131ft]
(Unit: m [ft])
Piping portion
Allowable value
Not to exceed the
A+B+a+b
maximum refriger-
+c+d+e
ant piping length *1
165 [541] or less
(Equivalent length of
A+e
190 [623] or less)
A
Below 110 [360]
e
Below 40 [131] *2
H
Below 50 [164]
H1
Below 40 [131]
Below 15 [49]
h1
(Below 10 [32])*3
Below 15 [49]
h2
(Below 10 [32])*3
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