Unit installation

SYSTEM LAYOUT
Layout example for the indoor units and outdoor unit
UNIT D
9-12
UNIT C
9-12
UNIT B
9-12
UNIT A
9-18
a
b
c
d
H
H
H
Circuit breaker
OUTDOOR UNIT
Power source
208/230 V ~ 60 Hz
Power cord
Connection cord
Refrigerant pipe
36 type
INDOOR UNITS
Connectable model name
9 – 12
9 – 12
9 – 12
9 – 12
*1
/18
D 6.35/9.52
C 6.35/9.52
B 6.35/9.52
A 6.35/12.7
1. CONNECTABLE INDOOR UNIT CAPACITY TYPE
CAUTION
• The total capacity of the indoor units connected must be between 27,000 and 36,000 BTU. (Refer to the Table.)
Ex. Maximum connection of four indoor units: 9,000+9,000+9,000+9,000=36,000
• If the total capacity of the connected indoor units exceeds 36,000 BTU, an error will be displayed and the units will not operate.
(For information on error displays, refer to the installation instruction sheets included with the indoor units.)
• To install an indoor unit, refer to the installation instruction sheet included with the indoor unit.
• At least three indoor units must be connected to the outdoor unit.
*1 When connecting models 9–12 to the outdoor unit, the included adapter is necessary. (For
more information, refer to “2-4 HOW TO USE ADAPTER”.)
Outdoor port
Standard port size
UNIT D ø6.35, ø9.52
UNIT C ø6.35, ø9.52
UNIT B ø6.35, ø9.52
UNIT A ø6.35, ø12.7