Trane 4MYW6-A Installer Manual page 20

Indoor fan control
Use the remote controller to set the indoor fan running at HIGH, MED or LOW speed. At this time
the fan will run at high, medium or low speed. It can also be set to AUTO and the indoor fan will
select fan speed(HIGH, MED or LOW) automatically according to ambient temperature.
There are at least 3 mins and 30s delay for fan speed shift.
Power supply for outdoor unit
The power supply for outdoor unit is turned on in AUTO, COOL, HEAT and DRY mode under turn-
on state.
The power supply for outdoor unit will delay 3 minutes to turn off under turn-off state or in the FAN
mode under turn-on state.
Swing control
Use the SWING button of the wireless remote control to control SWING On and Off. Swing will only
act when indoor fan is running. After power on, the swing motor turns back to 0 position and closes
the air outlet vent; if it does not preset swing, after the unit is turned on, it will turn to the max. air
outlet D1 position; then turn back to L position under COOL mode.Under HEAT mode, the guide
louver stays at D1; when in swinging state, it will swing between L1 and D1 position. When the unit
is turned off, it will turn back to 0 position.
Buzzer control
When the unit is power on or receives remote control signal or the auto key be pressed, the buzzer
will give out a beep.
Power-off memory function
Contents of memory: Mode; Swing; Set fan speed, Set temperature, Timing etc.
Under turn-on state, when power off and power on, the power supply for outdoor unit will be turn
on after 3 mins.
Under turn-off state, when power off and power on, the power supply for outdoor unit will be turn
on immediately.
Delay Protection of Compressor
Under COOL; DRY; HEAT mode, before each time the compressor starts, there will be 3 mins delay.
Common protection function in each mode
Overload protection
Ttube: at cooling,it detects the temp. of outdoor heat exchanger,at heating,it detects the temp. of
indoor heat exchanger.
When Ttube is detected high, the compressor will run in limited frequency. When Ttube goes on
rising over the stated value, the compressor will stop; under AUTO HEAT or HEAT mode, indoor
fan will blow 60s at low fan speed and then stop; under other mode, the indoor fan will run at set
speed.
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MS-SVN22A-EN