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Blower Motor Speed Retrofit
Motors installed in the unit have mul-
tiple speed configurations. To modify
the rpm of the motor, the following
steps may be followed.
!
WARNING
Hazardous Voltage!
Disconnect all electric power, in-
cluding remote disconnects and
discharge motor start/run capaci-
tors before servicing. Follow prop-
er lockout/tagout procedures to
ensure the power can not be inad-
vertently energized. Failure to dis-
connect power before servicing
could result in death or serious in-
jury.
Table F1: Blower External Static Pressure without Return Air Door (RAD), with filter
Model
Speed
Min
Ducted
No.
Tap
CFM
GET009
High
Yes
280
GET009
Low
Yes
-
GET009
High
No
-
GET009
Low
No
-
GET012
High
Yes
380
GET012
Low
Yes
-
GET012
High
No
-
GET012
Low
No
-
GET015
High
Yes
475
GET015
Low
Yes
-
GET015
High
No
-
GET015
Low
No
-
GET018
High
Yes
570
GET018
Low
Yes
-
GET018
High
No
-
GET018
Low
No
-
GET024
High
Yes
760
GET024
Low
Yes
-
GET024
High
No
-
GET024
Low
No
-
GET036
High
Yes
1135 1344
GET036
Low
Yes
-
GET036
High
No
-
GET036
Low
No
-
1
The NO "Ducted" option is for non-ducted (free return) units.
2
Units specified as "non-ducted" (free return) are factory wired to low-speed.
3
Units specified as "ducted" are factory wired to high-speed.
WSHP-SVN08B-EN
Installation
Air Flow Adjustment
1
Locate the blower motor relay in-
side the chassis control box.
2
Remove the undesired speed tap.
3
Select desired speed tap wire by
using information from Table 7.
4
Connect desired tap wire to the
1K4 relay at spade 4.
5
Reconnect power to the unit.
Table 6: Lead change
Lead Speed
Blower
Max
CFM
0
0.05
0.1
0.15
482
-
456
422
383
-
-
341
329
309
-
350
-
-
-
-
285
-
-
-
481
-
-
-
481
-
-
442
422
404
-
492
-
-
-
-
402
-
-
-
652
-
-
-
-
-
-
582
566
551
-
585
-
-
-
-
485
-
-
-
800
-
-
-
-
-
-
648
642
628
-
713
-
-
-
-
552
-
-
-
974
-
-
-
-
-
-
878
853
836
-
987
-
-
-
-
807
-
-
-
-
-
-
-
-
-
1271
1263
1253
-
1324
-
-
-
-
1229
-
-
-
Lead Colors
High
Low
1G
9A
External Static Pressure (in. of wg)
0.2
0.25
0.3
0.35
347
308
-
-
283
-
-
-
-
-
-
-
-
-
-
-
458
435
411
385
384
-
-
-
-
-
-
-
-
-
-
-
-
652
631
611
535
519
505
486
-
-
-
-
-
-
-
-
-
-
-
799
613
596
580
-
-
-
-
-
-
-
-
-
974
954
927
905
814
793
773
-
-
-
-
-
-
-
-
-
-
-
-
-
1238
1230
1213
1196
1178
-
-
-
-
-
-
-
-
0.4
0.45
0.5
0.55
0.6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
584
561
535
503
467
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
772
747
723
693
664
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
877
846
824
790
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1344
1313
1282
1155
-
-
-
-
-
-
-
-
-
-
-
-
-
0.65
0.7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
429
689
-
-
-
-
-
-
632
603
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1255
1219
-
-
-
-
-
-
17
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