Installation – Trane Voyager 1 Rooftop Unit TSD User Manual
Page 15
Installation
15
RT-SVX20A-E4
To adjust belt
The fan belts must be inspected
periodically to assure proper unit
operation. Replacement is
necessary if the belts appear frayed
or worn.
Units with dual belts require a
matched set of belts to ensure equal
belt length.
When removing or installing the
new belts, do not stretch them over
the sheaves. Loosen the belts using
the belt tension adjustment bolts on
the motor mounting base.
Once the new belts are installed,
adjust the belt tension.
Table 8 - Motor sheave / Fan speed
Fan speed (RPM)
Standard drive & motor
Unit
6 turns
Open
5 turns
Open
4 turns
Open
3 turns
Open
2 turns
Open
1 turns
Open
Closed
TSD/TSH 060
N/A
898
967
1036
1105
1174
1243
TSD/TSH 072
N/A
698
751
806
859
913
967
TSD/TSH 090
N/A
752
806
860
914
968
1020
TSD/TSH 102
N/A
688
737
786
835
885
934
TSD/TSH 120
N/A
782
838
894
950
1006
1062
YSD/YSH 060
N/A
1036
1105
1174
1243
1312
1381
YSD/YSH 072
N/A
806
860
913
968
1022
1074
YSD/YSH 090
859
913
967
1021
1075
1129
N/A
YSD/YSH 102
786
836
885
934
982
1032
N/A
YSD/YSH 120
894
950
1006
1062
1118
1174
N/A
WSD/WSH 060
N/A
898
967
1036
1105
1174
1243
WSD/WSH 072
N/A
698
751
806
859
913
967
WSD/WSH 090
N/A
752
806
860
914
968
1020
Fan speed (RPM)
Oversized drive & motor
Unit
6 turns
Open
5 turns
Open
4 turns
Open
3 turns
Open
2 turns
Open
1 turns
Open
Closed
TSD/TSH 060
N/A
1243
1311
1379
1450
1515
1588
TSD/TSH 072
N/A
967
1021
1075
1128
1183
1235
TSD/TSH 090
1112
1182
1252
1322
1392
1460
N/A
TSD/TSH 102
N/A
971
1041
1111
1181
1251
1321
TSD/TSH 120
1062
1118
1174
1229
1285
1341
N/A
YSD/YSH 060
-
-
-
-
-
-
-
YSD/YSH 072
N/A
967
1021
1075
1128
1183
1235
YSD/YSH 090
1112
1182
1252
1322
1392
1460
N/A
YSD/YSH 102
N/A
971
1041
1111
1181
1251
1321
YSD/YSH 120
1062
1118
1174
1229
1285
1341
N/A
WSD/WSH 060
N/A
1243
1311
1379
1450
1515
1588
WSD/WSH 072
N/A
967
1021
1075
1128
1183
1235
WSD/WSH 090
1112
1182
1252
1322
1392
1460
N/A
To increase airflow
Loosen variable sheave set screw
and turn sheave clockwise.
To decrease airflow
Loosen variable sheave set screw
and turn sheave counter-clockwise.