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Carrier 50PM20 Installation Instructions Manual page 8

Single package rooftop units electric cooling with electric heat option and electromechanical controls with puron (r-410a) refrigerant

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Table 3 - Fan Motor
and Drive Data
- Horizontal
Supply/Return
UNIT
50PM
20
24
28
Voltage
(volts)
208/230
and 460
575
208/230
and 460
575
208/230
and 460
575
LOW RANGE
Motor
HP
3.7
5
3.7
5
5
5
Motor
Nominal
RPM
1750
1750
1750
1750
1750
1750
Maximum
Continuous
BHP
4.26
5.75
4.26
5.75
5.37 / 5.75
5.75
Maximum
Continuous
Watts
3700
5015
3700
5015
4578 / 5115
5015
Motor
Frame
Size
56HZ
S184T
56HZ
S184T
S184T
S184T
Motor
shaft diameter
(in.)
7/8
1 1/8
7/8
1 1/8
1 1/8
1 1/8
Motor
Pulley
Pitch Diameter
Min - Max (in)
2.7 - 3.7
3.7 - 4.7
2.7 - 3.7
3.7 - 4.7
3.7 - 4.7
3.7 - 4.7
Fan RPM Range
685-
939
751 - 954
685-
939
751 - 954
687-
873
687-
873
Blower
Pulley
Pitch
Diameter
(in.)
6.8
8.6
6.8
8.6
9.4
9.4
Pulley
center
line distance
(in.)
11.293-13.544
9.81 - 13.055
11.293-13.544
9.81 - 13.055
9.81 - 13.055
9.81 - 13.055
Belt, Quantity_Type_Length
(in.)
1..BX38..39.8
1..BX40..41.8
1 ..BX38..39.8
1 ..BX40..41.8
1 ..BX41 ..42.8
1 ..BX41 ..42.8
Speed
change
per turn
-
moveable
pulley
42
34
42
34
31
31
(RPM)
Moveable
pulley
maximum
full turns
6
6
6
6
6
6
Factory
Speed
setting
(RPM)
812
853
812
853
780
780
MID- LOW RANGE
Motor
HP
5
5
5
5
5
5
Motor
Nominal
RPM
1750
1750
1750
1750
1750
1750
Maximum
Continuous
BHP
5.37 / 5.75
5.75
5.37 / 5.75
5.75
5.37 / 5.75
5.75
Maximum
Continuous
Watts
4578 / 5115
5015
4578 / 5115
5015
4578 / 5115
5015
Motor
Frame
Size
S184T
S184T
S184T
S184T
S184T
S184T
Motor
shaft diameter
(in.)
1 1/8
1 1/8
1 1/8
1 1/8
1 1/8
1 1/8
Motor
Pulley
Pitch Diameter
Min - Max (in)
3.7 - 4.7
3.7 - 4.7
3.7 - 4.7
3.7 - 4.7
4.8 - 6
4.8 - 6
Fan RPM Range
949-1206
949-1206
949-1206
949-1206
805-1007
805-1007
Blower
Pulley
Pitch
Diameter
(in.)
6.8
6.8
6.8
6.8
10.4
10.4
Pulley
center
line distance
(in.)
9.81 - 13.055
9.81 - 13.055
9.81 - 13.055
9.81 - 13.055
9.81 - 13.055
9.81 - 13.055
Belt, Quantity_Type_Length
(in.)
1..BX38..39.8
1..BX38..39.8
1 ..BX38..39.8
1 ..BX38..39.8
1 ..BX45..46.8
1 ..BX45..46.8
Speed
change
per turn
-
moveable
pulley
43
43
43
43
34
34
(RPM)
Moveable
pulley
maximum
full turns
6
6
6
6
6
6
Factory
Speed
setting
(RPM)
1078
1078
1078
1078
906
906
MID-HIGH
RANGE
Motor
HP
7.5
7.5
7.5
7.5
7.5
7.5
Motor
Nominal
RPM
1750
1750
1750
1750
1750
1750
Maximum
Continuous
BHP
7.66/8.51
/ 8.63
8.63
7.66/8.51
/ 8.63
8.63
7.66/8.51
/ 8.63
8.63
Maximum
Continuous
Watts
6458 / 7586
7586
6458 / 7586
7586
6458 / 7586
7586
Motor
Frame
Size
S213T
S213T
S213T
S213T
S213T
S213T
Motor
shaft diameter
(in.)
1 3/8
1 3/8
1 3/8
1 3/8
1 3/8
1 3/8
Motor
Pulley
Pitch Diameter
Min - Max (in)
4.8 - 6.0
4.8 - 6.0
4.8 - 6.0
4.8 - 6.0
4.8 - 6.0
4.8 - 6.0
Fan RPM Range
941 - 1176
941 - 1176
941 - 1176
941 - 1176
941 - 1176
941 - 1176
Blower
Pulley
Pitch
Diameter
(in.)
8.9
8.9
8.9
8.9
8.9
8.9
Pulley
center
line distance
(in.)
9.025-12.179
9.025-12.179
9.025-12.179
9.025-12.179
9.025-12.179
9.025-12.179
Belt, Quantity_Type_Length
(in.)
1..BX42..43.8
1..BX42..43.8
1 ..BX42..43.8
1 ..BX42..43.8
1 ..BX42..43.8
1 ..BX42..43.8
Speed
change
per turn
-
moveable
pulley
39
39
39
39
39
39
(RPM)
Moveable
pulley
maximum
full turns
6
6
6
6
6
6
Factory
Speed
setting
(RPM)
1059
1059
1059
1059
1059
1059
HIGH
RANGE
Motor
HP
10
10
10
10
10
10
Motor
Nominal
RPM
1750
1750
1750
1750
1750
1750
Maximum
Continuous
BHP
9.94/10.45
/ 11.19
11.5
9.94/10.45
/ 11.19
11.5
9.94/10.45
/ 11.19
11.5
Maximum
Continuous
Watts
8284 / 9330
9711
8284 / 9330
9711
8284 / 9330
9711
Motor
Frame
Size
S215T
S215T
S215T
S215T
S215T
S215T
Motor
shaft diameter
(in.)
1 3/8
1 3/8
1 3/8
1 3/8
1 3/8
1 3/8
Motor
Pulley
Pitch Diameter
Min - Max (in)
4.3 - 5.5
4.3 - 5.5
4.3 - 5.5
4.3 - 5.5
4.3 - 5.5
4.3 - 5.5
Fan RPM Range
1014-1297
1014-1297
1014-1297
1014-1297
1014-1297
1014-1297
Blower
Pulley
Pitch
Diameter
(in.)
7.4
7.4
7.4
7.4
7.4
7.4
Pulley
center
line distance
(in.)
9.025-12.179
9.025-12.179
9.025-12.179
9.025-12.179
9.025-12.179
9.025-12.179
Belt, Quantity_Type_Length
(in.)
2..BX38..39.8
2..BX38..39.8
2..BX38..39.8
2..BX38..39.8
2..BX38..39.8
2..BX38..39.8
Speed
change
per turn
-
moveable
pulley
47
47
47
47
47
47
(RPM)
Moveable
pulley
maximum
full turns
6
6
6
6
6
6
Factory
Speed
setting
(RPM)
1156
1156
1156
1156
1156
1156

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