UNIT FEATURES
•After
the compressor cycles off, it will not restart for three
minutes.
• o help eliminate power
surges after a power outage, the unit is equipped with
a two to fo 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 to indicate unit
status.
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,
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Weather-Protected Electrical Components-Vital
electrical components are protected from the weather
by locating them 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 to give excellent room control and allow
the microprocessor to monitor and react to changing
conditions.
• Automatic Emergency Heat on Heat Pump
Units-A lectric resistance heat if
the heat pump fails .
• High-Temperature Heat Pump Operation
Protection -Auto e compressor if
heat pump is operated with high indoor coil
temper
Automatic 3-minute Compressor Lockout-
Random Restart Delay-T
ur minutes
• High Temperature Protection in Outside In
COOL mode the unit will shut off compressor
automatically when detects the outdoor condenser
temperature is too high to continue operating. Only
when the temperature decrease to a safe level ,
will the unit 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. Only when the
unit enters protection mode reaches 4 times in one
hour, will the system fail to restart automatically and
need manually restart.
•
•
utomatically use e
matically protect th
atures. Power to the outdoor fan and the
compressor will be turned off if the indoor coil gets
too hot during heat pump operating to prevent
damaging the compressor.
-8-
• Fan Motors Permanently Lubricated-All units
have two fan motor
Motors are permanently lubricated to reduce
maintenance and totally enclosed to keep dirt and
water out of the motor windings.
• Indoor Fan Speed Selections AUTO/LOW
/MEDIUM/HIGH-Unit may be operated i
or high fan speed, or you may select AUTO, the unit
will auto choose the best running speed.
• Outdoor Two 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 and HEAT mode, after
compressor shut dow 5s, the indoor fan will
shut down to save energy.
• Ls Control(Front-Desk Control) is an optional
accessory. The unit can be turned ON/OFF by
front desk control switch. This function interface
locates on the 24V thermostat connection board.
s with quiet and maximum operating
efficiency.
n low, medium
Fan Speed-
n for 1
• Optional 24V General Thermostat interface-This
unit is available for 24V general thermostat. It is
an optional accessory, and easy to fix.
Fig 9 24V General Thermostat Interface