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6
MICROPROCESSOR CONTROL
INDOOR UNIT CONTROL
6-1. COOL OPERATION
RETURN SELECT
MENU
HOLD
.
Control Mode
1. Temperature
1-1. Determining temperature adjustment function
adjustment
(Function to prevent restarting for 3 minutes)
function
• Room temperature
• Room temperature
1-2. Anti-freeze control
Condition to detect
When the pipe temperature detection thermistor/liquid (TH22) detects 32°F or less in 16 minutes
from thermo-ON, the anti-freeze control initiates, and the unit enters to the thermo-OFF.
Condition to release
The timer which prevents reactivating is set for 3 minutes, and anti-freeze control is
1 Pipe temperature detection thermistor/liquid (TH22) reaches 50°F or above.
2 The condition of thermo-OFF has been completed by the thermostat.
3 The operation has changed to a mode other than COOLING.
2. Fan
By the remote controller setting (switch of 4 speeds+Auto)
4 speeds + Auto type
When [Auto] is set, fan speed is changed depending on the value of:
T
High
Med2
Med1
Low
TCHT002
<How to operate>
1 Press ON/OFF button.
2 Press [F1] button to display COOL.
3 Press [F2] [F3] button to set the set temperature.
ON
OFF
<How to operate>
1 Press POWER ON/OFF button.
2 Press the operation MODE button to display COOL.
3 Press the TEMP. button to set the set temperature.
Control Details
Set temperature + 2°F ···Thermo-ON
Set temperature ···Thermo-OFF
Type
Auto
1.8 F
3.15 F
NOTE: The settable temperature range varies with the model of
outdoor units and remote controller.
NOTE: The set temperature changes 1°F when the
button is pressed one time. Cooling 67 to 87°F
Fan speed notch
5.4 F
⊿T
19
or
Remarks
• The ON/OFF commands
by the indoor unit
thermostatic control
are not an ON/OFF
commands to the
compressor but an
open/close commands
to the linear expansion
valve. (The compressor
stops only when the
thermostatic control
for all the indoor units
connected to the same
outdoor unit turns OFF.)
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