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38
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'18 • KX-SM-292
(c) 2-step demand control
(i) Starting condition
If all the following conditions are satisfied.
1) 7-segment display [P04] is set 0%, 40%, 60% or 80% (except OFF).
2) Demand control is in operation.
3) External input connector of outdoor unit for "2-step demand control" is valid.
Ex. "2-step demand input" is valid, when connector (CnS2:[P08]-[9]*) is open.
* CnS1:[P07]-[9], CnG1:[P09]-[9] and CnG2:[P10]-[9] can be used, if they are
not in use.
(ii) Contents of control
Same as the energy saving mode control. [Refer to item (5) on page 41]
(iii) Ending condition
If the start condition is not established.
Energy saving mode control : Not depending on external input, compressor speed is limited by the
setting of 7-segment display [P04]
Demand control : When external input is ON, compressor speed is limited. Demand % is
set with the dip switches SW4-5 andSW4-6.
2-step demand control : When external input is ON, compressor speed is limited. Demand % is
set with the 7-segment display [P04].
Demand 1: Demand control is done by the compressor output % set with SW4-5 and SW4-6.
Demand 2: Demand control is done by the compressor output % set with [P10].
External input
(Demand input)
Demand control
2-step demand control
Invalid
(Shorted)
Valid (Open)
Demand 1
Demand 2
Remote
Demand 1
External input
(2-step demand input)
Invalid
(Shorted)
Remote conrol operation
Remote conrol display
Air-conditioner
ON/OFF
Normal
Invalid
(Shorted)
Invalid
(Shorted)
Normal
Normal
Normal
Valid (Open)
(d) Demand control from indoor unit
(i) Starting condition
①
When a demand ratio (“80%”, “60%”, “40%” or “0%”) has been transmitted from an indoor unit of “Peak-cut timer”
function.
②
Normal demand of Item (b) is not activated.
③
This control is performed on the RC-EX3A remote control.
(ii) Contents of control
①
Compressor’s upper limit speed is restricted according to the demand restriction rate.
②
The demand ratio controlled by the restriction rate which is transmitted from an indoor unit.
③
If the demand control rate signals are received from two or more indoor units, the control takes the lowest rate.
④
When the demand rate is other than 0%, this control is superseded by the controls of 4-way valve safeguard, defrost
operation, oil return operation, oil equalized operation, pump-down operation for replacement, Start/Stop pump-
down operation and check operation.
(iii) Ending condition
When the starting conditions have been lost.
Summary of Contents for FDC224KXZME1
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