77 PB
OPERATION
Outdoor Unit Field Settings
S4 DIP Switch Setting
Factory
Setting
Factory
Setting
ON
ON
ON
ON
1
1
1
2
2
2
3
3
3
4
4
4
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
PumpDown
Switch
Force
Defrost
CoolingOnly
S5 DIP SwitchSetting
Outdoor unit model Indoor unit connect
24K 18K
36K 30K
48K 42K
60K 48K
DIP Switch Setting of Outdoor Unit (Optional setting)
1. Turn on the power before setting the S4-2/S4-3 DIP switches, and dial the switches from OFF to ON.
Without turning on, the switches settings are not refreshed and might be invalid.
2. Turn off all power sources before setting the S4-1/S5-1,2,3 DIP switches. Without turning off, the
switches settings are not refreshed and might be invalid.
3. Mark of "" indicates the position of DIP switches.
Capacity
High Low
Force defrost mode set
Operation:
Change the switch from OFF to ON before turning on the appliance,
and set it in heating mode, then it will run with manual defrosting
mode at once.
Cooling only set
Operation:
Heating mode will be invalid after the DIP has been dialed.
Capacity set
Change it when the indoor units matched are in the following
conditions.
Pump down mode
Actions:
The compressor runs with the target frequency, and without any
protection when frequency rises; The EEV runs with setting opening;
Outdoor unit fan will run with the set fan speed.
Operation procedures (24K/36K)
The thermostat is turned off during the whole process.
Remove power to unit va electrical disconnet
Step 1:
Open the wiring cover on the right side of the machine.
Step 2:
Close the stop valve of the liquid piping with an Allen wrench in a
clockwise direction.