Service manual


GB
FUNCTION OF INVERTER INDOOR UNIT
summary
1. This control is use for DC Multi-Spilt air conditioners.
2. Po�er of indoor unit supply is 220-240V/50Hz, voltage range is 170V 270V.
3. Control precision of indoor temperature is ±1.8
O
F.
4. Indoor fan motor is PG motor.
5. Control accord �ith :
GB5956-91(safe requirement of air conditioner)
GB7725-2004( air conditioner): GB3797-87(control equipment of electrical equipment)
Vibrancy test: frequency 50Hz, acceleration 2.5g
PCB ought to accord �ith GB4588.1 and GB4588.2
Electromagnetism compatibility ought to accord �ith relate standard of nation.
Base parameter
Use condition: ambient temperature 5
O
F -185
O
F, relative humidity =30-95%.
Receive distance of remote:<10m
Angle of remote:<120 degree
Control precision of temperature: ±1.8 OF
Speed precision of indoor fan motor: ±10RPM
Time precision: <0.1%
Major function of control
1. Remote
Turn on/off
Mode select
auto
cooling
dehumidify
heating
ventilation
Indoor fan speed select
manual mode: high, middle, lo� speed
auto mode: accord difference of indoor room temp. and set temp. automatic select.
Temperature setting
Cooling: 60
O
F - 90
O
F, default is 77
O
F
Heating : 60
O
F - 90
O
F, default is 77
O
F
Dehumidify: default is 77
O
F and it can’t adjust.
Auto: default is 77
O
F and it can’t adjust.
Ventilation: 60
O
F - 90
O
F, default is 77
O
F
Sleeping
It can set or cancel 24HR sleep .
Timer on or timer off
Timer can set 24HR on or off.
Air flo�er control.
Turbo running
Hold key
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