3-Room Outdoor Unit Combination Table
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Pub. OI-85264180818004 © SANYO 2008
<Combinations of Connectable Indoor Units>
The combinations of the indoor units listed in Table 1 and Table 2 are combinations solely of those units which can be
operated concurrently. In addition to the combinations listed in the table, other combinations of indoor units are possible
provided that the following conditions are satisfied.
Conditions:
1. At least two or more indoor units must be connected to the multi outdoor unit. It is not acceptable for only one indoor
unit to be connected.
2. The total rated cooling capacity of the indoor units to be connected must be no more than 200% of the rated cooling
capacity of the outdoor unit.
Example: When 3 indoor units are connected
If the following holds true
Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)
Then:
It is therefore possible to connect 3 units with respective capacities of 7500 + 11900 + 17500.
However, since this combination is not found in the 3-room operation column of Table 1, operating all these units concurrently
may result in trouble. At a time like this, shut down at least one of the 3 indoor units to match one of the combinations
found in the 2-room operation column of Table 1.
In this case, all the indoor units installed must not be operated concurrently under any
circumstances. Otherwise, the air conditioner may not run properly and trouble may
occur.
Be sure to operate the air conditioning system only when 2 or more indoor units have been installed.
If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction.
CAUTION
C x 2 (200%) K1 + K2 + .......
19700 x 2 7500 + 11900 + 17500
39400 36900
CM1972
Rated cooling capacity of CM1972 outdoor unit: C=19700 (BTU/h)
If the following holds true
Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)
Then:
It is therefore possible to connect 3 units with respective capacities of 7500 + 11900 + 17500.
However, since this combination is not found in the 3-room operation column of Table 2, operating all these units concurrently
may result in trouble. At a time like this, shut down at least one of the 3 indoor units to match one of the combinations
found in the 2-room operation column of Table 2.
C x 2 (200%) K1 + K2 + .......
19700 x 2 7500 + 11900 + 17500
39400 36900
Rated cooling capacity of CM1972 outdoor unit: C=19700 (BTU/h)
at 230V
at 208V
NOTE
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