Mitsubishi Electric PLFY-P20VEM-E Technical & Service Manual page 17

4-2. BRANCH DUCT HOLE AND FRESH AIR INTAKE HOLE
At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when
required.
• A fresh air intake hole for the optional multi-functional casement can also be made.
Note:
The figures marked with * in the drawing below represent the dimensions of the main unit excluding those of the optional
multi-functional casement.
When installing the optional multi-functional casement, add 135 mm to the dimensions marked on the figure.
When installing the branch ducts, be sure to insulate adequately.
Otherwise, condensation and dripping may occur.
A
A
Refrigerant pipe
A
4-3. OPERATION IN CONJUNCTION WITH
DUCT FAN (Booster fan)
• Whenever the indoor unit is operating, the duct fan also oper-
ates.
(1) Connect the optional multiple remote controller adapter
(PAC-SA88HA-E) to the connector CN51 on the indoor
controller board.
(2) Drive the relay after connecting the 12 V DC relay
between the Yellow and Orange connector lines.
MB: Electromagnetic switch power relay for duct fan.
X: Auxiliary relay (For 12 V DC, coil rating: 1.0W or smaller)
OCH657
Branch duct hole
A
Fresh air intake hole
Branch duct hole diagram
A
(view from either side)
Drain pipe
350×100 cutout hole
17 17
[100 cut out hole
[175 burring hole pitch
[150 cut out hole
CN51
Green
5
on
indoor
controller
1
Connector (5P)
board
Red
Brown
Indoor unit side
Multiple remote
controller adapter
PAC-SA88HA-E
Indoor controller board
CN51
Multiple remote
controller adapter
PAC-SA88HA-E
CN51
Unit : mm
Fresh air intake hole diagram
[125 burring hole pitch
Ceiling
Be sure to secure insulation
material by tape, etc.
Yellow −
Orange +
Field installation
Be sure to secure insulation
material by tape, etc.
Distance between indoor
controller board and relay
must be within 10m.
~
MB