1. Design Procedure & Combination Ratio
• The minimum operation ratio should be considered during the design stage.
• If a system has a mix of unit types or capacity, the lowest extended connection ratio curve must be utilized.
• In case that a designed Minimum Operation Ratio is less than 5% or more than 30%, the Allowable Extended CR
must be considered as the value at 5% and 30%, respectively.
•
*)
If one of following indoor unit types is included in a system, the CR cannot be extended beyond 130%.
Type of indoor unit Limited by CR 130%
1Way Cassette / 4Way Cassette (600 x 600)
2.8kW or below
360 Cassette / Slim Duct (LSP duct)
3.6kW or below
4Way Cassette 5.6kW or below
Floor Standing (Exposed or Concealed) 5.6kW only
Ceiling Suspended 14.0kW only
Hydro unit (HE/HT) All capacities
• Samsung is not responsible for any issue, including abnormal noise that arises during heating
operation due solely to the operation rate being lower than the designated combination ratio shown in
Fig. 2. Please contact your local Samsung representative for further details if the project requires you
to design the project with a connection ratio greater than 130%.
NOTE
Combination Ratio (Connection Ratio)
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