Condensing Unit & Heat Pump R410A Service Manual

102
SERVICING
 
 
The motor is a one piece, fully encapsulated, 3 phase brushless
DC (single phase AC input) motor with ball bearing construcon.
1. Using a voltmeter, check for 230 volts to the motor connec-
ons L and N. If 230 volts is present, proceed to step 2. If
230 volts is not present, check the line voltage circuit to the
motor.
2. Using a voltmeter, check for 24 volts from terminal C to
either terminal 1, 2, 3, 4, or 5, depending on which tap is
being used, at the motor. If voltage present, proceed tostep
3. If no voltage, check 24 volt circuit to motor.
3. If voltage was present in steps 1 and 2, the motor has failed
and will need to be replaced.
NOTE: When replacing motor, ensure the belly band is between
the vents on the motor and the wiring has the proper drip loop
to prevent condensate from entering the motor.
SPEED STATIC
MBR800**-*
SCFM
MBR1200**-*
SCFM
MBR1600**-*
SCFM
MBR2000**-*
SCFM
0.1 1,240 1,500 1,800 2,160
0.2 1,170 1,460 1,740 2,080
0.3 1,120 1,360 1,680 1,990
0.4 1,060 1,280 1,610 1,890
0.5 980 1,200 1,520 1,790
0.6 900 1,110 1,430 1,690
0.1 900 1,380 1,540 1,730
0.2 850 1,320 1,490 1,670
0.3 790 1,270 1,450 1,590
0.4 740 1,200 1,400 1,520
0.5 680 1,140 13,560 1,420
0.6 605 1,040 1,280 1,320
0.1 650 1,170 1,130 1,520
0.2 590 1,130 1,100 1,450
0.3 540 1,080 1,070 1,360
0.4 500 1,020 1,030 1,290
0.5 430 950 990 1,200
0.6 330 830 930 1,090
HIGH
MEDIUM
LOW
C
L G N
1 2 3
4
5
High Voltage
Connections
3/16"
Low Voltage Connections
1/4”
MOTOR CONNECTIONS
NOTE: External stac is for blower @ 230 Volts. It does not include Coil, Air Filter or Electric Heaters.