I Necessary Sensor By Operating Mode - LG PRCKD20E Owner's Manual

Necessary sensor by operating mode
Necessary sensor by operating mode
Operating mode
Cooling
Heating
Energy saving
Dehumidification
Humidification
Auto ventilation
Preheating
6 AHU CONTROL KIT
Necessary sensor
SA temperature sensor
RA temperature sensor
SA temperature sensor
RA temperature sensor
SA temperature sensor
RA temperature sensor
OA temperature/
humidity sensor
Damper actuator
SA temperature sensor
RA temperature sensor
OA temperature/
humidity sensor
SA temperature sensor
RA temperature sensor
SA temperature sensor
RA temperature sensor
CO sensor
2
Damper actuator
SA temperature sensor
RA temperature sensor
Mixing temperature/
humidity sensor
- This runs indoor cooling.
- Initial external air inlet setting is 30% of the air
supply during the air conditioning and this can be
changed by the user. But, when the damper actuator
is installed on AHU, the setting can be changed.
- This runs the indoor heating.
- Initial external air inlet setting is 30% of the air
supply during the heating and this can be changed
by the user. But, when the damper actuator is
installed on AHU, the setting can be changed.
- This is the operating function to run indoor air
conditioning by controlling multiple outdoor units by
comparing the enthalpy of the indoor/outdoor air.
- During the Energy saving operation, the operation switches
between partial air conditioning operation (Controlling
multiple outdoor units) and fresh air conditioning operation
(Outdoor unit OFF, 100% external air flow).
- This is operating function is mainly used in between
seasons. But if there is no OA temperature/humidity
sensor and RA temperature/humidity sensor on the
AHU, the energy saving operation cannot be selected.
- This is the operating function to remove the indoor
humidity when the humidity level indoor is excessive.
- During the dehumidification operation, the set value
is 50%RH and the user cannot change this setting.
But if there is no OA temperature/humidity sensor
and RA temperature/humidity sensor on the AHU,
the dehumidification operation cannot be selected.
- This is the operating function to control the humidity to
the set value by detecting the indoor humidity level.
- This can be selected during heating operation.
But if there is no humidifier/humidifying valve and
RA temperature/humidity sensor on the AHU, the
humidification operation cannot be selected.
- This is the operating function to control the amount of
external air flow so that the CO
within the set level by detecting the indoor CO
- The initial CO level is set to 1000ppm, and can
2
be changed by the user.
- This function operates when auto ventilation
operation (Additional operation) is selected during
air conditioning or heating operation. But if there is
no CO sensor and damper actuator on the AHU,
2
the auto ventilation operation cannot be selected.
- When the mixing temperature during the heating
operation is below the set value (5°C),
preheating device automatically operates. The
preheating device and mixing temperature
sensor must be installed on AHU for this to
operate automatically.
Function
level is controlled
2
level.
2