11-5
CONTROL SYSTEM
SM BS DCI 1- A.1 GB
11.9 Ionizer
Control
Ionizer is on when unit is on AND indoor fan is on AND Ionizer power switch (on
Ionizer) is on
.
11.10 Electro Static Filter (ESF) Control
ESF is on when ESF switch is on, Safety switch is pressed, unit is on, AND
indoor fan is on.
11.11 Base Heater Control
When OAT is connected, Base Heater will be on when unit is in heating and
OAT<2
0
C.
When OAT is disconnected, Base Heater will be on when unit is in heating.
11.12 Fan Mode
In high/ medium/ low indoor fan user setting, unit will operate fan in selected
speed.
In Auto Fan user setting, fan speed will be adjusted automatically according to
the difference between actual room temperature and user set point temperature.
11.13 Cool Mode
NLOAD is calculated according to the difference between actual room
temperature and user set point temperature by PI control.
In high/ medium/ low indoor fan user setting, unit will operate fan in selected
speed.
In Auto Fan user setting, fan speed will be adjusted automatically according to
the calculated NLOAD.
11.14 Heat Mode
NLOAD is calculated according to the difference between actual room temperature
and user set point temperature by PI control.
In high/ medium/ low indoor fan user setting, unit will operate fan in selected
speed.
In AutoFan user setting, fan speed will be adjusted automatically according to the
calculated NLOAD.
11.15 Temperature Compensation
In wall mounted, ducted, and cassette models, 3 degrees are reduced from room
temperature reading (except when in I-Feel mode), to compensate for
temperature difference between high and low areas in the heated room, and for
coil heat radiation on room thermistor.
The temperature compensation can be enabled/disabled by shortening of J2 on
the indoor unit controller.
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