6.3.2
Input & Output Settings
Access outdoor unit settings by pressing PSW1 button on base board of outdoor unit. In case of combined outdoor unit, set
Outdoor unit A to active, and set Outdoor units B and C to inactive.
■Start setting
Press down and hold PSW1 for more than three
seconds to access menu mode. Press PSW2 and
PSW4 to toggle between "check", ".oST" and Func".
■Setting finished
Press and hold PSW1 for three seconds to exit from
menu mode when seven-segment code displays
"check".
External input and output settings
On base board of outdoor unit, external input terminal are CN17 and CN18, while external output terminal is CN16.
■Outdoor Unit circuit board port setting and indication
Seven-segme
nt digital
display
Port Setting
Remark
Signal
Input
#1 and #2 of
CN17
#2 and #3 of
CN17
#1 and #2 of
CN18
Signal
Output
#1 and #2 of
CN16
#1 and #3 of
CN16
■External input and output function setting
Functio
n
Input Signal
Output Signal
Fixed heating mode
Operation signals
Fixed cooling mode
Alarm signal
Instructions
Compressor operation
signals
Snow sensor
Defrosting signals
Demand Stoppage
--
60% current control
--
70% current control
--
80% current control
--
100% current control
--
Menu Mode
Press PSW1 for
one time.
Spot inspection mode
External input
and output
Function Setting
For more details refer to
Outdoor Unit PCB Spot
Inspection in
maintenance manual.
For setting mode refer
to Table (1) below .
For function settings
refer to Table (2)
below .
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