Daikin UATYQ250MCY1 Manuel D'installation page 27

Shunt jumper 1, 2 and 3: Minimum fresh air opening setting in fan mode, where by the selection of diff erent
pins will give diff erent opening setting. Let name the shunt jumper 1 = JP1, shunt jumper 2 = JP2 and shunt
jumper 3 = JP3; refer the table below for diff erent fresh air opening selection:-
Fresh air opening (%)
0 (default)
10
20
30
40
50
70
85
Legend: OFF = Short pin 2 and pin 3
ON = Short pin 1 and pin 2
Dip Switch 1, 2 and 3 allow only 1 pin selection. Multiple pins selection will cause error and the operation will go back to
default setting. While Dip Switch 4 allow multiple pins selection.
Location of dip switches and shunt jumpers
in the economizer controller board:
Shunt jumper 2
Shunt jumper 1
Dip Switch 1
Dip Switch 2
Dip Switch 4
ü
There are two LEDs in economizer controller board, which are green LED and red LED. Green LED will blink when
economizer controller board is powered-up. Red LED will blink when error(s) occur. Refer the table below for
error codes and their meaning:-
Error
Fault
Code
F0 Fresh air actuator faulty/ malfunction
F1 Return air actuator faulty/ malfunction
F2 Communication error
F3 CO sensor short
2
F4 CO sensor open
2
F5 Fresh air RH sensor short
F6 Fresh air RH sensor open
F7 Return air RH sensor short
F8 Return air RH sensor open
F9 Activation of actuator protection
FA Multiple pins selection in Dip Switch 1, 2 or 3
When error(s) occur and the faults persist, please call your authorized local dealer/ serviceman for
troubleshooting. However, all the errors occur in economizer controller board will not aff ect the normal
operation of rooftop unit.
JP1 JP2
OFF OFF
OFF OFF
OFF ON
OFF ON
ON OFF
ON OFF
ON ON
ON ON
CAUTION
Indication on the economizer controller board:
Shunt jumper 3
Indication for the
Dip Switch 3
means of selection
for Dip Switch 1.
Indication for the
means of selection
for Dip Switch 2.
JP3
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Indication for the means of selection for shunt
jumper 1, 2 and 3.
The error codes will be shown on the seven segment
display on the economizer controller board.
Indication for the
means of selection
for Dip Switch 3.
Indication for the
means of selection
for Dip Switch 4.
Seven segment display
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