Fan Motor Options; Permanent Split Capacitor Motors (Psc) - Bosch SV007 Installation, Operation And Maintenance Manual

Model sv - i series geothermal heat pump
Table of Contents
Revised 08/14

FAN MOTOR OPTIONS

Permanent Split Capacitor Motors (PSC)

The standard motor for all SV series heat pumps is
a PSC motor. For all models the supplied motor is
a three speed motor. 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
Rated
Fan
Model
Airflow
Speed
Low
SV-007
Med
300
Hi
Low
SV-009
Med
Hi
350
Low
SV-012
Med
Hi
400
Low
SV-015
Med
Hi
500
Low
SV-018
Med
650
Hi
Low
SV-024
Med
Hi
850
Low
SV-030
Med
Hi
950
Low
SV-036
Med
Hi
1200
SV Heat Pump Series
0.10
0.20
0.30
0.40
370
340
295
250
390
360
330
300
410
380
350
315
370
340
295
250
390
360
330
300
410
380
350
315
300
290
290
300
380
380
360
330
420
400
380
360
320
300
280
-
380
370
360
340
520
500
480
460
630
590
560
-
810
790
760
730
1010
970
920
870
650
610
570
540
830
820
800
770
1050
1000
950
910
740
730
700
660
830
810
770
730
1000
950
900
830
1290
1250
1200
1150
1410
1350
1290
1220
1500
1440
1370
1290
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.
0.50
0.60
0.70
0.80
-
-
-
-
260
-
-
-
280
210
-
-
-
-
-
-
260
-
-
-
280
210
-
-
-
-
-
-
290
-
-
-
340
320
-
-
-
-
-
-
330
-
-
-
430
400
340
-
-
-
-
-
680
590
-
-
800
680
530
-
510
-
-
-
720
620
-
-
840
710
570
-
610
-
-
-
680
620
-
-
750
690
630
-
1080
1000
-
-
1150
1060
900
-
1210
1120
1000
900
Fan Motor Options | 23
0.90
1.00
1.10
1.20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
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-
-
8 733 914 818 (2014/08)

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