Trane Mitsubishi Electric CITY MULTI Series Technical & Service Manual page 19

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 function casement can also be made.
Note:
When installing the optional multi function casement, add 5-5/16" (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
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 12 VDC relay
between the Yellow and Orange connector lines.
MB: Electromagnetic switch power relay for duct fan.
X: Auxiliary relay (For 12 VDC, coil rating: 1.0 W or
smaller)
OCHT746A
Branch duct hole
A
Fresh air intake hole
Branch duct hole diagram
A
(view from either side)
Drain pipe
13-25/32 × 3-15/16
(350×100) cutout hole
19
Fresh air intake hole diagram
ø3-15/16
(ø100) cutout hole
15-11/32
(390)
3-15/16
3-17/32 3-15/16 3-17/32
(100)
(90) (100) (90)
ø6-7/8 (ø175) burring hole pitch
13-25/32
(350)
ø5-29/32 (ø150) cutout hole
CN51
Green
5
on
indoor
controller
1
board Connector (5P)
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 : in (mm)
ø4-29/32
(ø125) burring hole pitch
Ceiling
~
Be sure to secure insulation
material by tape, etc.
Yellow -
Orange
+
Installation at site
Be sure to secure insulation
material by tape, etc.
Distance between indoor
controller board and relay
must be within 33 ft [10 m].
MB