Function - GREE ELECTRIC GUHD09NK3CO Service Manual

U-Match Series DC
Inverter Service Manual

3 FUNCTION

Function
Memory function
Remote control function
Timing function
Self-diagnosis with alarm
function
Sleep function
Automatic function
Cool air proof function
Weekly Time
High/low pressure protection
Overload protection
Over current protection
Discharge high temperature
protection
Reverse (open) phase
protection
Anti-high temperature
protection
Timing ON/OFF display
Fan speed display
Function model display
Testing display
Temperature display
5
When unit restarts after power off, it will run on former status, the mode and parameter are kept the
same.
Wireless controller and remote controller can be selected, and the maximum control distance of
remote controller is 10m.
It can timing ON/ OFF separately, meanwhile, it can also timing on circularly.
Once the unit has malfunction, the malfunction code will be indicated and alarm rings immediately.
It can self control for saving energy in energy saving mode.
The fan of indoor unit can adjust fan speed automatically based on actual demand when cooling or
heating under automatic mode.
The fan starts only when the temperature of indoor unit heat exchanger is higher than indoor
temperature under heating mode.
Centralized Control and Weekly Timer Functions: The centralized controller and the weekly timer
are integrated in the same wire controller. The system has both the centralized control and the week
timing functions. Up to 16 sets of units can be controlled simultaneously by the centralized controller
(weekly timer). The weekly timer has the function of invalidating the lower unit. The weekly timing
function is able to realized four timing ON/OFF periods for any unit every day, so as to achieve fully
automatic operation. No timing control can be set for holidays.
When suction pressure is too low or discharge pressure is too high, compressor will stop and unit
display malfunction code.
Compressor has its own overheat protection.Once the temperature of compressor is higher than
allowable level, compressor will stop and only when temperature recovery, compressor restart.
Once the current of compressor is higher than normal level, compressor will stop and unit display
malfunction code.
Once the discharge temperature of compressor is higher than allowable value, compressor will stop
and unit display malfunction code.
Once the phase sequence of power supply is incongruent or the phase is absent, unit can't work.
Once the heat exchanger temperature of indoor unit is too high, the outdoor fan motor will stop.
Display and timing turn ON/OFF time only with wired controller have this function .
Display the speed (high,medium,low) of fan only with wired controller have this function .
Cooling mode,dry mode,heating mode,fan mode only with wired controller have this function .
Display testing mode only with wired controller have this function .
Display room temperature and set temperature only with wired controller and remoter board have
this function .
Description