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INSTALLER SETTING
32
CN_EXT (Code 52)
It is the function to set a purpose of digital
input port(CN_EXT) of indoor unit PCB.
Value
Description
Use installer code No. 41 setting value
00
(simple dry contact setting value)
01
Simple operation on/off
Simple dry contact
02
(It takes HL when operation is off.)
Indoor unit single emergency
03
stop
04
Occupied / unoccupied
Indoor unit all emergency stop
※It can be set only when there is
05
indoor unit emergency stop
function.
Window contact
※It can be set only when there is
06
window contact function.
Window contact lock
※It can be set only when there is
07
window contact lock function.
Outdoor unit cycle priority
(Code 56)
It is the function to clear the limit and set the
operation mode when it is cleared, to be able
to select the operation mode opposite to the
operation mode of the outdoor unit currently
in operation while the connected product is in
Slave mode.
h When you set installer code 08:00
(operation slave), according to the operation
status of the outdoor unit, cooling/heating
mode selection is restricted.
Value 1 00 : Not use
- According to the outdoor unit operation mode,
operation mode selection is limited.
h The following operation modes can be
selected according to the outdoor unit cycle.
- Cooling cycle: auto, fan, cool,
dehumidification
- Heating cycle: auto, fan, heat
Value 1 01 : Standby
- In case of the operation mode opposite to the
outdoor unit operation mode, it maintains the
current operation mode. At this time, it
maintains thermal off + fan off state.
Value 1 02 : Cool
- Outdoor unit operation has priority in cooling
operation. It is the function to enable the
heating operation by heater in the product in
heating operation.
h For heater interface operation, set 'emergency
heater setting' and 'auxiliary heater'.
- Emergency heater setting – installer code 18
- Auxiliary heater – installer code 25
Function code
Value 2 : Waiting
time for cooling
thermal off
Value 1 : Mode setting
h Press
button to select value 1 or value 2.
Value 2 Waiting time for cooling thermal off
0
45 minutes (default)
1
30 minutes
2
60 minutes
3
90 minutes
4
120 minutes
5
Not use
Outdoor temperature for heating
stages (Code 57)
It is a function that sets outdoor temperature
values for two stages heating. If user sets
outdoor temperature T1 and △T, indoor unit
will select heating stage between indoor unit
operation and heater operation.
h When the emergency heater setting is set
(installer code 18), emergency heater
control operation is performed with priority.
Function code
Fahrenheit / Celsius
Value 2 : Setting value
Value 1 : Select mode
h Press
button to select value 1 or value 2.
Value 1
Select mode
1
Use/Not use setting
2
T1 value setting
△T value setting
3
Value 1 : 01
Setting value
Description
0
Not use
1
Use
Value 1 : 02
Temperature unit
T1 setting range
Celsius
-23~16°C
Fahreneit
-10~60°F
[-9°F or higher]
[-10°F or lower]
INSTALLER SETTING
33
Value 1 : 03
△T setting range
Temperature unit
Celsius
0~35°C
Fahreneit
0~70°F
Operation according to T1, △T setting and
outdoor temperature.
Outdoor
Temperature
T1 + T
T1
Time
① (T1 +△T < Outdoor temperature) :
only heat pump used
② (T1 < Outdoor temperature < T1 + △T) :
both heater and heat pump used
③ (Outdoor temperature < T1) :
only heater used
Fan setting during thermal off
(Occupancy / Operation mode)
(Code 67)
Set the fan speed opreation during thermal off
condition according to occupancy and
operation mode.
Function code
Value 2 : Setting value
Value 1 : Select mode
<Select mode>
<Step>
00: Cooling / Occupied
00 : Not used
01: Cooling / Unoccupied
01 : Fan low
02: Heating / Occupied
02 : Previous fan setting
03: Heating / Unoccupied
03 : Fan off
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