UNIT OPERATION
（
6
）
sanitary hot water display
(water source heat pump has water source Icon. If it has timer on/off setting, there is timer icon to indicate. )
（
7
）
AC cooling and sanitary hot water display
（
8
）
AC heating and sanitary hot water display
(water source heat pump has water source Icon. If it has timer on/off setting, there is timer icon to indicate. )
9
way of communication
Non-polarity double wire, maximum running length is 100 meters and point to point connected.
Back
view
of wired controller showed below.
线控器背面
(after change, need be repowered to enable the change)
SW4-8
OFF
：
cooling valid
；
ON: cooling invalid
SW4-7
OFF
：
heating valid
；
ON: heating invalid
SW4-6
OFF
：
DHW valid; ON
：
DHW invalid
SW4-5
OFF
：
G1 valid; ON
：
G1 invalid
SW4-4
OFF
：
inverter outdoor model
；
ON
：
on/off outdoor model
SW4-3 reserved
SW4-2 reserved
SW4-1
OFF
：
geothermal
；
ON
：
air source
10
10 Function Selection Switch: SW4
