Hitachi RAS-6HVRNM2 - Enhanced Outdoor-Indoor Unit Combinations

TC-12001
2-87
OUTDOOR UNIT
P5414950-rev.1
11
3.4 Enhanced Combination of Outdoor Unit and Indoor Unit
(1) The combination is available with the range of the following conditions. Less than the recommended
number of indoor unit should be connected in order to prevent the cold draft during the heating
operation with the system that all the indoor units are operated simultaneously.
Outdoor Unit Capacity 3HP 4HP 5HP 6HP 7HP
Recommended Number of
Connectable Indoor Unit
< 2 Units < 4 Units 1 Unit
Maximum Number of
Connectable Indoor Unit
3 Units 5 Units 6 Units 1 Unit
Minimum Indoor Unit Capacity 1HP 7HP
Range of Combination Capacity of Indoor Unit
(The case of exceeding the recommended
number of connectable units)
50-120%
(50-100%)
100%
Minimum
Indoor Unit
Capacity
In-the-Ceiling Type
(RPI-*FSN2SQ)
Only 3HP Only 4HP Only 5HP Only 6HP Only 7HP
4-Way Cassette Type
(RCI-*FSN3)
1HP -
In-the-Ceiling Type
(RPI-*FSN2)
0.8HP -
2-Way Cassette Type
(RCD-*FSN2)
1HP -
Ceiling Type
(RPC-*FSN2)
2HP
-
Wall Type
(RPK-*FSNSM2)
1HP -
(2) (Total Indoor Unit Capacity / Total Outdoor Unit Capacity) should be within the value as shown in the
table above.
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Do not install a space where the cold draft may be felt (at heating).
(4) If 4-Way Cassette Type or Ceiling Type indoor unit is connected to the outdoor unit, less than
recommended number of the indoor unit should be connected. In addition, the range of the
combination capacity of the indoor unit including these types should be within 100%. If the system is
used in the cold area (outside temperature becomes -10
o
C) or under the high heating load conditions,
the total indoor unit capacity should be less than 100% against the outdoor unit.
(5) The minimum indoor unit capacity should be within the following table against the maximum indoor unit
capacity in the same refrigerant cycle when multiple indoor units are connected.
Max. Indoor Unit Capacity 0.8HP 1.0HP 1.5HP 2.0HP 2.5HP 3.0HP 4.0HP 5.0HP
Min. Indoor Unit Capacity
> 0.8HP > 1.0HP > 1.5HP > 2.0HP