OC246-41
5. BRANCH DUCT(Installation at site)
Discharge by branch duct becomes possible by installing a branch duce at site. Knockout holes on the wall panel of the indoor
unit must be removed.
Branch Duct Installation Procedure
At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when
required.
Note :
The figure marked with
ww
in the drawing represent the dimensions of the main unit excluding those of the optional
multi function casement.
When installing the optional multi function casement, add 5-5/16 inch to the dimensions marked on the figure.
When installing the branch ducts, be sure to insulate adequately. Otherwise condensation and dripping may occur.
Fresh air intake hole
Refrigerant pipe
Drain pipe
Branch duct hole
(Cut out hole)
Branch duct hole diagram
(view from either side)
Branch
duct hole
{
6-7/8
Burring hole pitch
{
5-7/8
Cut out hole
14 -
{
1/8
Burring hole
13-3/4
3-9/16
3-9/16
70
_
3-15/16 3-15/16
3-15/16
5-1/8
w
6-1/8
w
6-9/16
Branch
duct hole
Figure 1. Branch duct mounting position
Figure 2. Branch duct connection details
●
Whenever the indoor unit is operating the duct fan also
operates.
(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 12V DC relay
between the Yellow and Orange connector lines.
Use a relay under 1W.
MB: Electromagnetic switch power relay for duct fan.
X: Auxiliary relay (12V DC LY-1F)
CN51
Multiple remote
controller adapter
PAC-SA88HA-E
Indoor controller board
Distance between indoor
controller board and relay
must be within 10m.
Be sure to secure insulation
material by tape and such
5
Green
Yellow
Orange
Connector (5P)
Package side
Multiple remote
controller adapter
PAC-SA88HA-E
Be sure to secure insulation
material by tape and such
Installation at site
CN51
on
indoor unit
board
Red
Brown
1
MB
~
CN51
4. Interlocking operation method with duct fan (Booster fan)
Unit : (inch)
