Gree HLR45SNa-M - Button Function on Display Board

Household (Townhouse) Central Air Conditioning Unit
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error at system or communication.
3) COOL: It displays when cooling is running, otherwise it would not display.
4) TEMP: It shows temperature value displays at main display area.
5) Auxiliary display area: It contains 2 numbers and a comma, for showing temperature and number of
parameter at main display area. It only displays when under Check mode and Parameter checking mode.
6) Main display area: It contains a minus, 2 numbers and 1 temperature unit, for displaying value of
temperature and parameter (temperature or time value) and error code. When temperature value is displayed,
it shows value in algorism and temperature unit; when time is displayed, it shows algorism value but no
temperature unit (default unit is min); when it is code, it displays specic error (refer to Malfunction Error
List) but no temperature unit. Individual temperature or parameter may exceed 99, then adopt AX for 100
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109, bX for 110
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119, CX for 120
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129, dX for 130
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139, EX for 140
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149, FX for 150
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159, and X
stands for a number between 0
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9. Under normal state, it shows temperature for back water.
7) Parameter list: It means the value shown at present main display area is parameter. It shows onlyunder
Parameter Check mode.
8) DEFROST: It displays when defrosting, otherwise it doesn’t displays.
9) ABC: It displays when system or compressor orders, for showing which system is defrosting.
10) TEST: For testing, it displays under compel operation. 11
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17. Buttons: Functions and contents are
shown in instructions for buttons function below.
When unit is off, it displays only temperature of out water. When unit is on, under normal state, if there is
no error, it displays temperature of out water, if there is error, it displays error code; when there is no operation
after 60s of pressing the button, it quit back to normal state display automatically.
Auto antifreeze operation display (only for heat pump unit)
When auto antifreeze function is started and relevant conditions are satised, unit begins auto antifreeze
operation. At this time, LCD main displaying area displays code d2 (if there is error it displays error code).
4.3 Button function on display board
1) MODE: It can switch between cooling and heating, this button is available only on cooling and heating
unit.
2) Turn On: To turn on the unit; when under compel operation, press once to quid compel operation.
3) Turn Off: To turn off the unit; press it once to quit compel operation when the unit is under compel
operation.
4) ▲ : To increase present set value or change set/check object.
5) ▼: To decrease present set value or change set/check object.
6) Check: Press it once under normal state to enter check mode, under check mode, press this button
when “17” is displayed can change the value of “17”. Under parameter set mode, press this once can switch
the adjusting objection between parameter and value, press this button for long (about 5s) to save and quit this
parameter setting.
7) EXIT: Under Set and Check mode, press it once to quit this mode. Under parameter set mode, this set
value would not be saved. Press this button for long (about 5s) to set sound, and make sound switches between
always on and always off.
8) EXIT
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▲: 20s after electrify, press this two buttons simultaneity for about 3s (EXIT rst, and then
▲, the interval between pressing the two buttons should not be longer than 4s), to enter parameter check
mode.