8
blower Speed
For optimum system performance and comfort, it may be
necessary to change the factory speed setting. See
Table
1
below for factory settings.
notE
: This model has a High
Efficiency ECM Motor with 5 speed taps.
WaRning:
to avoid electric shock, personal injury, or death,
turn off the electric power at the disconnect or the
main service panel before making any electrical
connections.
1. Disconnect all electrical power to the unit and remove
the service panel.
caution:
label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing.
2. Locate the orange, black and blue wires terminated to
the blower motor. The black wire controls the low speed
cooling and heating operations, the blue wire controls
high speed cooling and heating operations and the
orange wire controls the electric heating operation.
caution:
to avoid personal injury or property damage,
make certain that the motor leads cannot come
into contact with any metal components of the
unit.
3. Verify the required speed from the airflow data found
in
Table 1
. Place appropriate wire on the appropriate
motor speed tap for the required airflow.
4. Check all factory wiring per the unit wiring diagram and
inspect the factory wiring connections to be sure none
loosened during shipping or installation.
2-Speed outdoor Fan motor
(Select models)
If the unit utilizes a 2-speed condenser fan motor, this
motor will operate on low speed when in low cooling/
heating, and on high speed when in high cooling/heating.
ambient Sensor mounting
For optimum performance of the heat pump system, the
ambient sensor (
Figure 6 (page 9)
) must be mounted
on the outside of the unit.
1. Remove the mounting bracket and all hardware included
in the packet.
2. Remove star bushing from 7/8” hole in corner panel of
the unit.
moDEl
numbER
motoR
taP
EXtERnal Static PRESSuRE DRoP (in Wc)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Q5RF-X24KA
Tap T1*
570
555
498
442
382
—
—
—
Tap T2**
810
765
721
675
625
555
495
—
Tap T3***
1180
1140
1100
1050
1000
650
900
840
Tap T4
1302
1260
1220
1172
1127
1090
1035
985
Tap T5
1450
1410
1377
1335
1293
1245
1205
1160
Q5RF-X36KA
Tap T1*
875
832
775
715
659
599
555
—
Tap T2**
1267
1229
1181
1135
1099
1045
994
790
Tap T3
1380
1340
1305
1260
1220
1180
1130
1075
Tap T4***
1440
1400
1365
1320
1280
1235
1195
1145
Tap T5
1500
1460
1420
1380
1340
1290
1250
1210
Q5RF-X48KA
Tap T1*
1030
980
950
900
860
810
765
725
Tap T2
1275
1225
1195
1145
1105
1055
1015
975
Tap T3**
1525
1504
1460
1422
1380
1353
1305
1271
Tap T4***
1710
1665
1638
1609
1575
1530
1493
1449
Tap T5
1790
1760
1727
1701
1665
1627
1587
1553
Q5RF-X60KA
Tap T1*
1140
1094
1051
1005
954
901
850
802
Tap T2
1375
1340
1310
1252
1235
1172
1160
1108
Tap T3**
1691
1659
1623
1586
1544
1504
1468
1424
Tap T4***
1722
1692
1653
1615
1579
1539
1498
1454
Tap T5
1841
1804
1771
1731
1703
1659
1614
1578
* Denotes factory set low cooling & heating speed
** Denotes factory set high cooling & heating speed
*** Denotes factory set auxillary heating speed
table 1. airflow Data