Mitsubishi Electric CITY MULTI CMB-P-V-J Manuel D'installation page 5

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[Fig. 4.1.2]
Ⓐ Ⓑ
Ⓒ
Ⓕ
*2
*1
Ⓓ Ⓓ
Ⓔ
63-80 100-250
Ⓐ To outdoor unit (Main BC controller)
Ⓑ End connection (brazing)
Ⓒ BC controller (Main BC controller / Sub BC controller)
Ⓓ Indoor unit
Ⓔ P50 or below
Ⓕ Combined piping kit (Model name: CMY-R160-J1)
Ⓖ Twinning pipe (Model name: CMY-Y102SS-G2, CMY-Y102LS-G2)
Ⓗ Up to three units for 1 branch hole; total capacity: 80 or below
(but same in cooling/heating mode)
[Fig. 4.2.1]
Ⓐ
Ⓑ
[Fig. 4.3.1]
Ⓒ
Ⓑ
Ⓒ
Ⓐ
Ⓓ
Ⓔ Ⓕ
Ⓖ
[Fig. 4.4.1]
①
③
Ⓖ
Ⓓ Ⓓ Ⓓ Ⓓ
Ⓗ
*3
Ⓐ Cut here
Ⓑ Remove brazed cap
Ⓐ Insulating material for pipes (not supplied)
Ⓑ Bind here using band or tape.
Ⓒ Do not leave any opening.
Ⓓ Lap margin: more than 40 mm
Ⓔ Insulating material (not supplied)
Ⓕ Unit side insulating material
Ⓖ Minimum 30 mm
②
4.1
*1. For connecting 15 to 50 model indoor units
Have pipe expansion of indoor unit connecting port by cutting the piping at
the cutting point which depends on the indoor unit capacity.
Note:
Remove burr after cutting the piping to prevent entering the piping.
Check that there is no crack at the pipe expansion part.
*2. To connect a unit with a capacity of 81 or above.
After combining two branches using an optionally available piping kit
(CMY-R160-J1), connect indoor units.
*3. Connection of plural indoor units with one connection (or joint pipe)
• Total capacity of connectable indoor units: 80 or below (250 or below with
joint pipe)
• Number of connectable indoor units: Maximum 3 Sets
• Twinning pipe: Use the twinning pipe for CITY MULTI Y Series (CMY-
Y102SS-G2, CMY-Y102LS-G2)
• Selection of refrigerant piping
Select the size according to the total capacity of indoor units to be installed
downstream.
Total capacity of indoor units
140 or below
141 to 200
201 to 250
4.2
4.3
[Fig. 4.3.2]
Ⓐ Ⓑ
4.4
① Unscrew the two screws that are holding the side panel on the right side of the control
box.
② Tilt the drain pan.
③ Screw down the screws with the drain pan tilted.
①
Liquid line
ø9.52
Ⓐ Insulating material (not supplied)
Ⓑ Bind here using band or tape.
Gas line
ø15.88
ø19.05
ø22.2
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