Samsung AM080FX A Series Service Manual page 310

Piping Diagram
7-3 Functions (cont.)
7-3-2 Control (cont.)
7-3-2-2 Start-up modes (cont.)
Safety Start – Quick Start
▪ Purpose
Enable high-speed cooling and heating through quick start-up
▪ Concept
Compressors start at the same time to quickly improve the performance.
▪ Control specifications in detail
- Condition(s) required to enter Quick Start mode: [ A & B ]
A. Required capacity is 30% or higher
B. Indoor and outdoor temperatures satisfy the Quick Start range shown below.
Ambient temperature (℃ )
- In Quick Start mode, compressors are controlled as shown below.
(See the chart below for conditions required to complete specific steps)
- Condition(s) required to enter Normal Operation mode : [ A or B ]
A. DSH > 10 K
- Cold Operation mode will activate if none of the conditions required to enter Normal Operation mode are satisfied.
- In Cold Operation mode, the compressor frequency increase speed is restricted to 1Hz per 30 sec.
- Condition(s) required to close Cold Operation mode : [ A or B ]
A. A maximum of 30 min has elapsed
Samsung Electronics
Quick Start
B. Max (Tdis, Ttop) ≥ 30℃
B. DSH > 15 K
Ambient temperature (℃ )
Normal / Cold Operation
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