YMGI
•
Your Modern Green Idea
26
UNIT FEATURES
Automatic 3-minute Compressor Lockout
After the compressor cycles off, it will not restart for three minutes.
Random Restart Delay
To help eliminate power surges after a power outage, the unit is
equipped with a two to four minute random restart delay feature.
Whenever the unit is plugged in with the master switch turned on
and the mode switch set in the cool or heat mode, a random
restart will occur. A random restart condition can be avoided by
setting the mode switch in the fan only or off position before
applying power to the unit.
Indication LEDs
The control panel has LEDs that correspond to fan operation and indicate unit status.
High Temperature Protection in Outside
In COOL mode the unit will shut off compressor automatically when it detects the outdoor condenser
temperature is too high to continue operating. After the temperature decreases to a safe level, the unit will
restart. If this failure occurs 4 times within an hour, the control panel will show the error code-E9.
Failure Tolerance
If the unit in protection mode has less than 4 times in one hour, the accumulation times will reset to avoid
system failure. If the unit enters protection mode 4 times in one hour, the system not restart automatically
and need manually restart.
Weather-Protected Electrical Components
Vital electrical components are protected from the elements on the indoor side of the weather barrier.
Highly Featured Microprocessor Controls
Microprocessor controls are programmed to interface with the temperature sensors to maximize comfort
conditions for the room occupant and provide outstanding features. Thermistors are used to sense small
changes in temperature and allow the microprocessor to monitor and react to changing conditions.
Automatic Emergency Heat on Heat Pump Units
Automatically use electric resistance heat if the heat pump fails.
High-Temperature Heat Pump Operation Protection
Automatically protects the compressor if heat pump is operated with high indoor coil temperatures.
Power
to the outdoor fan and the compressor are turned off if the indoor coil gets too hot during heat pump
operation, to prevent damaging the compressor.
Fan Motors Permanently Lubricated
All units have two fan motors for maximum operating efficiency. Motors are permanently lubricated and
totally enclosed to reduce maintenance to keep dirt and water out of the motor windings.
Indoor Fan Speed Selections AUTO/LOW/MEDIUM/HIGH
Unit may be operated in low, medium or high fan speed. Select AUTO and the unit will choose the best
running speed.
Outdoor Two Fan Speed LOW/HIGH
Unit detects outdoor condenser coil temperature. During the night when outdoor ambient temperature
drops, the outdoor fan may auto switch to LOW fan speed to lower the noise for better sleeping.
Rotary Compressor
Smoother operation for quiet, dependable service and high efficiency.
Energy saver
In COOL or HEAT mode, when the compressor shuts down for over 15s,
the indoor fan will shut down to save energy.
Ls Control
(
Front
-
Desk Control)
The unit can be turned ON/OFF by front desk control switch. This
function interface is located on the 24V thermostat connection board.
24V General Thermostat interface (optional)
This unit is designed to allow the easy installation of a 24V general
thermostat.
Содержание TTWA Series
Страница 10: ...YMGI Your Modern Green Idea 10...
Страница 27: ...YMGI Your Modern Green Idea 27 OPERATING INSTRUCTIONS...
Страница 37: ...YMGI Your Modern Green Idea 37 TTWA Wiring Diagrams TTWA0 Wiring Diagram AC Only...
Страница 38: ...YMGI Your Modern Green Idea 38 TTWA0 Wiring Diagram AC Heater...
Страница 39: ...YMGI Your Modern Green Idea 39 TTWA0 Wiring Diagram HP...
Страница 40: ...YMGI Your Modern Green Idea 40 TTWA0 Wiring Diagram HP Heater...