To set up indoor quantity, you will need to utilize the K2 and K1 button (refer to page 14) and
follow the procedure below:
1. Power up the outdoor.
2. Press K2 for 5 second to enter parameter setting mode. The 7 segments LED display will
show [- - - -].
3. You need to key in the password before you can make any changes. The password is 0755
4. Press K1 to select. Press K2 to confirm.
5. After it show [- - - -], press K1. It will show [- - - 0]. Press K2, it will show [- - 0-].
6. After that, press K1 to select “7” and K2 to confirm.
7. Once you successfully select “0755” and press K2, the PCB will enter to setting mode.
8. The available setting to adjust are as follow:
a. Indoor Quantity
b. Temperature to initiate defrost checking
c. Temperature to initiate defrost cycle
d. Temperature to stop defrost cycle
e. Interval of defrost cycle
f. Duration of defrost cycle
Most of the time, the only setting that need to do is the indoor quantity. Other data remain
as factory default value.
9. If there is only 4 indoors in the system, please select “4” by pressing K1 until the LED show
4. Then press K2 to confirm.
10. Leave it for 5 seconds and the system will come out from the setting mode automatically.
Remark: Please read first before you try on the PCB. If K1 or K2 is not press after 5 seconds, it
will exit from the setting mode automatically.
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