2) Operation/ stop control by the demand input CnS1 of outdoor unit
Input: CnS1 Switching with J13
CnS1: Switching of demand control/
normal operation
Short-circuit
Open
Short-circuit (Level input)
Demand control
Normal operation
Open (Pulse input)
Switching of normal operation/
demand control (Reversal)
Open
Short-circuit
Short-circuit (Level input)
Normal operation
Demand control
Open (Pulse input)
(NOP)
Note (1) Factory setting – J13: Short-circuit, CnS1: Short-circuit (Short-circuit pin connected)
3) Remote control displays the operating conditions. Operation conditions are transferred to option central control.
4) Demand control
Demand ratio can be switched with the DIP switches (SW4-7, 4-8) on the outdoor PCB.
SW4-7, SW4-8 demand switching: 0 – Open, 1 – Short-circuit
SW4-7 SW4-8
Compressor upper limit speed (rps)
FDC121KXZEN/S1-W FDC140KXZEN/S1-W FDC155KXZEN/S1-W
Cooling Heating Cooling Heating Cooling Heating
0 0 57 65 74 76 78 76
1 0 42 49 56 57 58 57
0 1 29 33 37 38 40 38
1 1 0 0 0 0 0 0
5) CnS1 performs the following operations depending on the short-circuited or open of the jumper wire (J13).
In the case of pulse input, the pulse width is 500 ms or larger.
①
J13 – Short-circuit
ON (Short-circuit) ON (Short-circuit)OFF (Open)
Normal Normal
Remote control operation
Remote control display
Air-conditioner operation/stop
OFF OFF OFF
Demand control
Remote
Compressor OFF
Compressor OFF
ONON
PUSH PUSH PUSH PUSH
(b) Demand control
(Note) With 7-segment [P07] = [1]
1) Demand control and normal operation are switched with the connector (CnS1) and the jumper wire (J13) on the
outdoor unit PCB.
J13: Switching of CnS1 input method
J13 short-circuit: CnS1 is for the level input
J13 open: CnS1 is for the pulse input
6) The operation status when changing from operation prohibition to operation permission can be set by 7-segment [P37].
[P37]=0: Operation stopped
[P37]=1: Restart the indoor unit that was operating before the operation was prohibited.
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