Daikin Sky Air R-407C Service Manual page 208

Sky air r-407c b-series
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Overview of the cooling mode functions
1
Integral capacity
2
3
Mode 0
4
Mode 1
5
Mode 2
Mode 3
2–28
The illustration below shows the integral capacity in function of the compressor running time.
Integral
capacity
Intelligent control mode
When the DIP switches are in mode 0, "intelligent freeze-up prevention control" determines the
freeze-up activation. The outdoor unit can determine the freeze-up activation.
Disabled intelligent control mode
The table below contains the freeze-up conditions, these are the same as for the Sky Air G- and
K-series.
Condition
Evap. temp.
(OR)
1
-1˚C
2
-3˚C
3
-5˚C
Added countermeasure to avoid ice/water blow out during freeze-up cycle.
Mode 2 enables the possibility to start a freeze-up activation decision by the outdoor unit, but with
more severe conditions than in mode 0.
Model
FAY
4-way cassette
Mode 3 is used in case mode 2 is insufficient as countermeasure.
Cooling or dry keep
Timers
40 min compressor accumu-
lated time
Te ≤ -3˚C for 1 min continu-
ously after minimum 8 min of
operation
Te ≤ -5˚C for 1 min continu-
ously after minimum 8 min of
operation
Used in case of...
Reverse angle installation for water drain flow.
2- or 3-way air outlet.
ESIE02–01
Max. integral
capacity value
Diminishing
integral capacity
Compr. ON time
Freeze-up operation
Remarks
Only for FHYP
For indoor units other than FHYP
Part 2 – Functional Description

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