Securing Installation And Service Space; Checking The Installation Site - Mitsubishi Electric CITY MULTI CMB-P104V-G1 Manuel D'installation

1. For hanging from the ceiling [Fig. 2.2.1] (P.2)
• Provide an inspection hole 450 mm square in the ceiling surface as shown in
[Fig. 2.3.1] (P.2).
• 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 per bolt for hanging bolts.
• Be sure to install the BC controller horizontally.
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 horizontally.

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] (P.2)
<A> Top view <B> Front view
A Inspection hole
C Control box
*1 Dimensions with which pipe connection can be handled at site
Model name A
CMB-P104V-G1
CMB-P105V-G1
CMB-P106V-G1 648
CMB-P108V-G1
CMB-P1010V-G1
CMB-P1013V-G1
1098
CMB-P1016V-G1
CMB-P108V-GA1
CMB-P1010V-GA1
1110
CMB-P1013V-GA1
CMB-P1016V-GA1
CMB-P104V-GB1
648
CMB-P108V-GB1
CMB-P1016V-HA1 1110
CMB-P1016V-HB1 1098

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, 1016G1 (In the case the outdoor unit
is 14-hp (P350 model) or less, and 16 or fewer ports are used.)
[Fig. 2.4.1] (P.2)
A Outdoor unit
C Indoor unit
E Less than H=50 m (when the outdoor unit is higher than the indoor unit)
F Less than H1=40 m (when the outdoor unit is lower than the indoor unit)
G Twinning pipe (for Y Series) CMY-Y102S-G2
H Combined pipe (CMY-R160-J1: optional)
I Less than 110 m
K Up to three units for 1 branch hole
Total capacity: less than 80 (but same in cooling/heating mode)
L Less than h1=15 m (10 m or less for 200, 250 unit type)
M Less than h2=15 m
B On the side of outdoor unit piping
D On the side of indoor unit piping
B
-
200
-
200
-
B BC controller
D P100 - P250 model: 2 ports merged.
J Less than 40 m
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. 4.
*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. (Not applicable to the P250 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 200 or more.
*4 In the system to which indoor units of the P200 model or above are con-
nected, neither a branch joint nor a branch header may be used.
*5 Do not connect the P200 or P250 models of indoor units and other mod-
els of indoor units at the same port.
*6 In the system to which indoor units of the P100 through P140 models are
connected, merge the two ports before connecting them. (Set DIP SW4-6
on the BC controller to ON.)
*7 It is possible to connect the P100 through P140 models of indoor units to
a single port. (Set DIP SW4-6 to OFF.) Note that the cooling capacity will
somewhat decrease. (The factory setting for DIP SW4-6 is OFF.)
*8 Indoor units that are connected to the same branch joint cannot be simul-
taneously operated in different operation modes.
Distance between BC controller
and farthest indoor unit
70
60
50
40
30
20
10
0
0 5 10 15
Height difference between
BC controller and farthest
indoor unit (m)
2. CMB-P108, 1010, 1013, 1016GA1, P104, 108GB1 (GA1: In the case the out-
door unit is 26-hp (P650 model) or less.)
CMB-P1016HA1, 1016HB1 (HA1: In the case the outdoor unit is 28-hp
(P700 model) or more.)
[Fig. 2.4.2] (P.3)
A Outdoor unit
C SUB BC controller
E The twinning kit is connected inside the outdoor unit on the low-pressure side.
When outdoor units of different capacities are connected, connect the twinning
kit to the unit with a higher capacity.
F Twinning pipe (for R2 series) CMY-R100VBK, CMY-R200VBK
(for WR2 series) CMY-Q100VBK
G Twinning pipe (for Y series) CMY-Y202-G2, CMY-Y102L-G2, CMY-Y102S-G2
H Twinning pipe (CMY-R160-J1: optional)
I Twinning pipe (for Y series) CMY-Y102S-G2
J P100 - P250 model: 2 ports merged
K Maximum of 3 units per a pair of ports
Total capacity of 80 or below
All units connected to the same port must be in the same operation mode.
L Less than H=50 m (when the outdoor unit is higher than the indoor unit)
M Less than H1=40 m (when the outdoor unit is lower than the indoor unit)
N Less than h1=15 m (10 m or less for 200, 250 unit type)
O Less than h2=15 m
(Unit: m)
Piping portion Allowable value
Not to exceed the
A+B+a+b
maximum refriger-
+c+d+e
ant piping length *1
165 m or less
(Equivalent length
A+e
of 190 m or less)
A Below 110
e Below 40 *2
H Below 50
H1 Below 40
Below 15
h1
(Below 10)*3
Below 15
h2
(Below 10)*3
B MAIN BC controller
D Indoor unit
9