Samsung VRF DVM S2 Technical Data Book page 12

1. Design Procedure & Combination Ratio
Combination Ratio (Connection 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
1Way Cassette / 4Way Cassette (600 x 600)
360 Cassette / Slim Duct (LSP duct)
4Way Cassette
Floor Standing (Exposed or Concealed)
Ceiling Suspended
Hydro unit (HE/HT)
• 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
NOTE
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%.
Limited by CR 130%
2.8kW or below
3.6kW or below
5.6kW or below
5.6kW only
14.0kW only
All capacities