YMGI
•
Your Modern Green Idea
32
AUXILIARY CONTROLS - DIP SWITCHES
The auxiliary dip switch controls are located behind the room cabinet.
The owner is responsible for checking switches and ensuring they are
in the desired position.
#1 Reserved
#2 Heat Pump Enabled (UP) or Disabled (DOWN)
When this switch is disabled (DOWN), heat pump will never operate.
#3 Electric Heat Enable (UP) or Disabled (DOWN)
When this switch is disabled (DOWN), electric heater will never
operate.
#4 Heating Priority
This function is only for heat pump with electric heater model. When this switch is DOWN, electric heat takes
priority. When this switch is UP, heat pump takes priority.
#5 Auto Heating (Freeze Protect)
The unit must have heating function (cooling only model does not share this function). When the unit is
connected to the power supply, and room temperature is lower than 10°C / 50°F for 3 minutes, unit will start
heating automatically no matter what the setting mode is. Only when room temperature reaches 13°C /55°F
will heating stop.
#6 Electric Power-Off Memory.
When the power is turned on, the unit will operate using the same settings as before power off. The default
setting is enabled (UP).
#7 Clean Filter Reminder
When this switch is enabled (UP), the red LED on the control panel will light up after 250 hours of
accumulated fan running time. It serves as a reminder to clean the filter. After cleaning the filter, press the
[Reset Filter] button, the reminder red LED will go out. When this switch is disabled (DOWN), the function is
disabled. The default setting is enabled (UP).
#8 Power of Electric Heater
This function is only for models with electric heat. 208- 230V models with 3.4kW electric heater should set it to
DOWN, while 115V models with 1.2kW electric heater should set it to UP. This setting is for advanced
protection of electric heating.
WARNING:
Before service
,
you must disconnect the power cord
.
Dip switches of #2,#3,#8 is forbidden to change the
default setting, otherwise the unit will not operate properly or even cause some undesired trouble. If you forget
the default setting, please refer to the wiring diagram, make sure #2,#3,#8 are the same with the diagram.
Summary of Contents for TTWA Series
Page 10: ...YMGI Your Modern Green Idea 10...
Page 27: ...YMGI Your Modern Green Idea 27 OPERATING INSTRUCTIONS...
Page 37: ...YMGI Your Modern Green Idea 37 TTWA Wiring Diagrams TTWA0 Wiring Diagram AC Only...
Page 38: ...YMGI Your Modern Green Idea 38 TTWA0 Wiring Diagram AC Heater...
Page 39: ...YMGI Your Modern Green Idea 39 TTWA0 Wiring Diagram HP...
Page 40: ...YMGI Your Modern Green Idea 40 TTWA0 Wiring Diagram HP Heater...
