Fan Motor Options; Permanent Split Capacitor Motors (Psc) - Bosch LV Series Installation And Maintenance Manual

24 | Fan Motor Options

FAN MOTOR OPTIONS

Permanent Split Capacitor Motors (PSC)

The standard motor for all LV series heat pumps is
a PSC motor. For all models other than 575 V
units, the supplied motor is a three speed motor.
575 V motors are single speed. If a speed change
is required, follow the instructions below:
1. Disconnect power to the heat pump.
2. For units with leaded motors, remove the front
access cover.
3. Remove the fan speed wire from the fan relay.
Clip the ¼" quick connect from the lead and
cap the unused lead.
Table 5: PSC Motor Performance Data
Fan
Model
Speed
Low
LV-007
Med
Hi
Low
LV-009
Med
Hi
Low
LV-012
Med
Hi
Low
LV-015
Med
Hi
Low
LV-018
Med
Hi
Low
LV-024
Med
Hi
Low
LV-030
Med
Hi
Low
LV-036
Med
Hi
8 733 905 683 (2013/04)
Rated
Airflow
0.10 0.20
370 340
300 390 360
410 380
370 340
390 360
350 410 380
300 290
380 380
400 420 400
320 300
380 370
500 520 500
720 710
650 810 790
1010 970
750 740
830 820
850 1050 1000
975 910
1050 980
950 1250 1170
1290 1250
1410 1350
1200 1500 1440
Subject to change without prior notice
4. Uncap the desired fan speed wire and
terminate with a ¼" quick connect. Connect to
the fan relay.
5. If the motor is a 460 V motor and the speed is
changed from high to medium or low, connect
the high speed motor lead to the orange
intermediate winding lead instead of simply
capping it.
Refer to the PSC motor performance tables for
heat pump blower performance with the PSC
motor option.
0.30 0.40 0.50 0.60
295 250 - -
330 300 260 -
350 315 280 210
295 250 - -
330 300 260 -
350 315 280 210
290 300 - -
360 330 290 -
380 360 340 320
280 - - -
360 340 330 -
480 460 430 400
700 - - -
760 730 680 590
920 870 800 680
710 670 620 -
800 770 720 620
950 910 840 710
870 740 640 -
920 830 760 700
1120 1070 940 830
1200 1150 1080 1000
1290 1220 1150 1060
1370 1290 1210 1120
LV Heat PumpSeries
0.70 0.80 0.90 1.00
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
340 - - -
- - - -
- - - -
530 340 - -
- - - -
- - - -
570 490 - -
- - - -
- - - -
740 650 - -
- - - -
900 - - -
100
0 900 - -
LV Heat Pump Series
1.10 1.20
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -