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Setting of indoor unit capacity codes
•
The setting of the indoor unit capacities is important. Set the correct indoor unit code numbers
according to the indoor unit capacity. The capacities are set by the rotary switches on the printed
circuit board switch A (unit A), switch B (unit B), switch C (unit C) and switch D (unit D).
•
During manufacture, the indoor capacity selection switches are set at '0'.
•
Record the indoor capacity codes, indoor unit model names and locations in the installation manual,
and on the wiring diagram on the electrical panel cover.
Example:
Indoor unit Capacity
Code number
(Example: Model RAV-364UH-PE, capacity = 36)
•
Multiple indoor units may be connected to each outdoor unit, providing the total indoor code does not
exceed the limits shown below.
Combination of Multi Controllers and indoor units
Number of
Maximum No. of
Multi Controllers
indoor units
1
4
2
8
3
12
4
16
Example of systems with maximum possible code:
Outdoor unit
Interface kit
Multi Controller [code]
(Max. system code)
10
Introduction
Components
Room A
Capacity 16
No connection
0
Multi Controller PCB
Indoor unit diversity
135%
160%
OD
OD
OD
OD
27
27
27
27
6
26
(27)
(32)
Room B
Capacity 16
10
13
16
2
3
4
MCC-1210
Maximum system code
27
32
OD
OD
DIF
DIF
13
6
13
27
6
20
(32)
Room C
Capacity 26
20
26
36
5
6
8
Capacity select switches
Maximum code per
Multi Controller
27
27
27 (13*)
13
OD
OD
DIF
DIF
DIF
DIF
13
13
13
13
8
8
8
8
(32)
46
10
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