WIRING DIAGRAM
OFF
ON
COLOR CODES:
BL – BLUE
BR – BROWN
RD – RED
WH – WHITE
GY – GREY
YL – YELLOW
BK – BLACK
PU – PURPLE
GR – GREEN
DIP SWITCH CODES:
NOTES:
1.THE SIZE FOR WIRES USED IN X1A MUST BE WITHIN THE RANGE OF 12 TO 24 AWG,
WITH TEMPERATURE RATING OF AT LEAST 105
℃
.
2.UNIT MUST BE PERMANENTLY GROUNDED AND CONFIRM TO N.E.C AND LOCAL CODES.
3.CONNECT THE CORRECT TERMINALS IN FURNACE DUE TO DIFFERENT TYPES OF
FURNACE.
4.ADJUST DS2 DUE TO DIFFERENT SCENARIOS LISTED NEXT TO THE WIRING DIAGRAM.
5.PLEASE MAKE SURE THE TRANSFORMER IN GAS FURNACE HAS THE SUFFICIENT
POWER TO SUPPORT THIS ADAPTER (8 VA).
1
2
3
4
1
2
3
4
SINGLE-STAGE
GAS FURNACE
(DEFAULT)
SINGLE-STAGE
GAS FURNACE
(IF BLOWER SETTING
“G” HAS A HIGHER
SPEED TAP THAN “Y”)
1
2
3
4
TWO-STAGE
GAS FURNACE
1
2
3
4
NO FIELD
ADJUSTMENT
DS2
DS11
H2P(DIAGNOSTIC LED) INDICATIONS:
3 FLASHES: THERMOSTAT COMMUNICATION ERROR
4 FLASHES: EQUIPMENT COMMUNICATION ERROR DURING OPERATION
5 FLASHES: EQUIPMENT COMMUNICATION ERROR DURING START UP
6 FLASHES: ABNORMAL COMBINATION
COMPONENT CODES:
LOW VOLTAGE FIELD
HIGH VOLTAGE FIELD
CONNECTOR
ELECTRICAL GROUND
Fuse
LED
THERMOSTAT
INDOOR A-COIL
INTERFACE ADAPTER
H1P
H2P
HAP
32V 3A
Fuse
F1U
DIP SWITCH
DS11
DIP SWITCH
DS2
1
2
3
4
1
2
3
4
GAS FURNACE
(SINGLE-/TWO-STAGE)
INVERTER OUTDOOR UNIT
AC
SUPPLY
POWER
L2
L1
24V AC
SINGLE-
STAGE
TWO-
STAGE
1 2 R C G
W1 W2
YLO
Y
1 2 R C
1 2 R C
1 2 R C
C
G
R
C
G
R
W1
W2
Y
YLO
Y
W
BL
RD
GY
BK
BK GY RD BL
BL
GR
RD
BR
WH
YL
PU
X1A
TERMINAL LABELS:
1 – COMMUNICATION SIGNAL
G – INDOOR FAN
W2 – HI HEATING
2 – COMMUNICATION SIGNAL
R – 24 V AC POWER
YLO – LO COOLING
C – 24 V AC COMMON
W1 – LO HEATING
Y
– HI COOLING
Please notice the wiring length limit in the system. The wiring length from the adapter to
outdoor unit should be less than 250 ft, from the adapter to gas furnace should be less than
100 ft, and from the adapter to Daikin
One
+ Smart Thermostat should be less than 125 ft.
Wire with thermostat, indoor a-coil, outdoor unit and gas furnace according to the
wiring diagram.
Wiring is subject to change. Always refer to the wiring diagram on the unit for the
most up-to-date wiring.
The required wires are data lines 1 and 2 for communication, “R” (24 V AC power) and “C”
(24 V AC common) for power supply. For single-stage furnaces, connect “G”, “W1”, and
“YLO” on the terminal interface adapter. (See WIRING DIAGRAM for external relay wiring).
For two-stage furnaces, connect “W1”, “W2”, “YLO/Y1”, “Y/Y2” to the same terminal in the
interface adapter, and change switch on “DS2” according to the wiring diagram.
10
English
01-FITQ AOR_DTA119A71_IM_EN.indd 10
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