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Function DIP Switch Settings:
The 24V thermostat mode needs to refer to the following settings.
SW4-1
000 is the default
SW4-2
000/001/010/011/100/101/110/111, internal machines with different abilities, electric
heating and PSC classification for use
SW4-3
Indoor unit dial code
NO.
Dial code
1
SW1-1
Whether 24V thermostat is used or not.
2
SW1-2
Anti-cold blow protection option.
3
SW1-3
Single cooling/heating and cooling options.
4
SW1-4
Stand alone indoor unit or full system.
5
SW2-1
First stage auxiliary heating.
6
SW2-2
Electric heat on delay.
7
SW2-3
Electric auxiliary heating delay to start time.
Compressor / Auxiliary heat outdoor
8
SW2-4
ambient lockout.
Maximum continuous runtime allowed
before system automatically stages up
capacity to satisfy set point.
9
SW3-1
This adds 0.5 to 3.0°C to the user set
point in the calculated control point to
increase capacity and satisfy user set point.
Cooling and heating Y2 temperature
10
SW3-2
differential adjustment.
Temperature differential to activate
11
SW3-3
second stage auxiliary heating.
Rotary
Set outdoor temperature limitation
12
Switch S3
(for auxiliary heat or compressor).
13
S4-1
Default ON.
14
S4-2
DH function selection.
NOTICE
The SW4 DIP switch is only for Certified service technicians to debug and use,
please do not touch it.
Page 44
SW1
SW2
ON
ON
1 2 3 4
1 2 3 4
Features
SW3
SW4
ON
ON
1 2 3 4
1 2 3 4
ON
YES
NO
Cooling.
Indoor unit only.
1°C (1.8°F)
30 minutes.
YES
The heater will not
operate if the outdoor
temperature is greater
than the temperature
set by S3.
30 minutes.
1°C (1.8°F)
2°C (3.6°F)
0 means that the temperature protection is not
turned on, 1-F is -20-8°C (-4-46°F) respectively,
and each scale represents 2°C (3.6°F).
Short circuit W1 and W2. W1, W2 separate.
DH is off by default.
S4
ON
1 2
OFF
NO
YES
Cooling & Heating.
Full system.
2°C (3.6°F)
15 minutes.
NO
The compressor will
not operate if the
outdoor temperature
is lower than the
temperature set by S3.
90 minutes.
2°C (3.6°F)
3°C (5.4°F)
DH on.
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