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33
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'10 • SCM-SM-094
CnT Input
Unit
(CASE A)
Unit
(CASE B)
OFF
OFF
*ON
ON
ON
ON
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
Note (1) The ON with the * mark indicates an
ON operation using the remote control
unit switch, etc.
*ON
(a) Level input
If the factory settings (Jumper wire J1 EXTERNAL INPUT on the PCB of indoor unit) are set, or “LEVEL INPUT” is se-
lected in the wired remote control’s indoor unit settings.
1) Input signal to CnT OFF
ON Air conditioner ON
2) Input signal to CnT ON
OFF Air conditioner OFF
(b) Pulse input
When Jumper wire J1 on the PCB of indoor unit is cut at the field or “PULSE INPUT” is selected in the wired remote con-
trol’s indoor unit settings.
Input signal to CnT becomes valid at OFF
ON only and the motion of air conditioner [ON/OFF] is inverted.
CnT Input
Unit
(CASE A)
Unit
(CASE B)
OFF
OFF
ON
ON
OFF
ON
OFF
ON
ON
OFF
OFF
'09•SRK-DB-087D
1.8ޓProtective control function
(1) Frost prevention control
(a) Operating conditions
(b) Detail of anti-frost operation
(c) Reset conditions:
Indoor heat exchanger
temperature (ºC)
2.5 8
(2) Cooling overload protective control
(a) Operating conditions:
(b) Detail of operation
(c) Reset conditions:
(3) Cooling high pressure control
(a) Purpose:
(b) Detector:
(c) Detail of operation:
53
58
60
Outdoor heat exchanger temperature (°C)
8rps
(1)
8rps
(1)
0rps
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
lower limit
speed 30 rps
(Example) Fuzzy
Operation mode
Item
Protective control Reset
Compressor operation
Indoor fan
Item
SCM 40~80 ZJ-S
Outdoor air temperature
Lower limit speed
Model
Forced outage Operation instruction
Depends on operation mode
h
60
8
20
60
8
2.5
Reset
Protective
control
40 41 46 47
OFF
ON1
ON2
Outdoor air temperature ( )
C
º
'09•SRK-DB-087D
1.8ޓProtective control function
(1) Frost prevention control
(a) Operating conditions
(b) Detail of anti-frost operation
(c) Reset conditions:
Indoor heat exchanger
temperature (ºC)
2.5 8
(2) Cooling overload protective control
(a) Operating conditions:
(b) Detail of operation
(c) Reset conditions:
(3) Cooling high pressure control
(a) Purpose:
(b) Detector:
(c) Detail of operation:
53
58
60
Outdoor heat exchanger temperature (°C)
8rps
(1)
8rps
(1)
0rps
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
lower limit
speed 30 rps
(Example) Fuzzy
Operation mode
Item
Protective control Reset
Compressor operation
Indoor fan
Item
SCM 40~80 ZJ-S
Outdoor air temperature
Lower limit speed
Model
Forced outage Operation instruction
Depends on operation mode
h
60
8
20
60
8
2.5
Reset
Protective
control
40 41 46 47
OFF
ON1
ON2
Outdoor air temperature ( )
C
º
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