Haier AW07EH2VHA, Service Manual

Page: 33 / 140

OUTDOOR TECHNICAL OVERVIEW
B-21
ENGLISH
DIP Switch Settings
Description SW5-1 SW5-2 SW5-3 SW5-4 SW5-5 SW5-6 SW5-7 SW5-8
Cooling Only ON ---- ---- ---- ---- ---- ---- ----
Heat Pump OFF* ---- ---- ---- ---- ---- ---- ----
Set On For Colder Climates ---- ON ---- ---- ---- ---- ---- ----
Set Off For Normal Operations ---- OFF* ---- ---- ---- ---- ---- ----
Max Running Current Is 15Amps ---- ---- ON ---- ---- ---- ---- ----
Normal Conditions ---- ---- OFF* ---- ---- ---- ---- ----
4U36HS1ERE & 4U36MS2VHB ---- ---- ---- ON ---- ---- ---- ----
3U24GS1ERE & 3U24MS2VHB ---- ---- ---- OFF ---- ---- ---- ----
3U24GS1ERE & 3U24MS2VHB ---- ---- ---- ---- ON ---- ---- ----
4U36HS1ERE & 4U36MS2VHB ---- ---- ---- ---- OFF ---- ---- ----
4U36HS1ERE & 4U36MS2VHB ---- ---- ---- ---- ---- ON ---- ----
3U24GS1ERE & 3U24MS2VHB ---- ---- ---- ---- ---- OFF ---- ----
Temperature Correction Valid ---- ---- ---- ---- ---- ---- ON ----
Temperature Correction Null ---- ---- ---- ---- ---- ---- OFF* ----
Quiet Operation Valid ---- ---- ---- ---- ---- ---- ---- ON
Quiet Operation Invalid ---- ---- ---- ---- ---- ---- ---- OFF*
Note:
1. Power input restrict selection: OFF-invalid; ON-valid(≤3500W)
2. Quiet operation: If OFF, the outdoor unit will calculate and obtain the average ambient temperature of the unit within the
last 24 hours, Tao_average_24. Then compare the current ambient temperature with the ambient temperature average
Tao_average_24, and combine it with the previous ambient temperature trend to determine whether it can enter Quiet
operation (low compressor speed and low O.D. fan speed).
SW5 DIP Switch Settings (3U24MS2VHB, 4U36MS2VHB)
*Factory Default Setting
SM2 DIP Switch Settings (2U18MS2VHB)
Description SM2-1 SM2-2
Enhanced Defrost (Cold Climates) OFF OFF
Defrost frequency is reduced by 10Hz compared with OFF/OFF state ON OFF
Defrost frequency is increased by 10Hz compared to OFF/OFF state OFF ON
Demand Defrost (Default Setting) ON ON