Carrier 48PG20-28 Heating System User Manual


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Table 2 — Fan Motor and Drive Data — Vertical Supply/Return
48PG
20 24 28
208/230 and 460 575 208/230 and 460 575 208/230 and 460 575
LOW RANGE
Motor Hp 3.753.7555
Motor Nominal Rpm 1750 1750 1750 1750 1750 1750
Maximum Continuous Bhp 4.26 5.75 4.26 5.75 5.75 5.75
Maximum Continuous Watts 3174 4290 3174 4290 4290 4290
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
Fan Rpm Range 685-939 751-954 685-939 751-954 687-873 687-873
Motor Pulley Min. Pitch Diameter (in.) 2.7 3.7 2.7 3.7 3.7 3.7
Motor Pulley Max. Pitch Diameter (in.) 3.7 4.7 3.7 4.7 4.7 4.7
Blower Pulley Pitch Diameter (in.) 6.8 8.6 6.8 8.6 9.4 9.4
Blower Pulley Shaft Diameter (in.) 1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
Blower Pulley Type FixedFixedFixedFixedFixedFixed
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 (rpm) 42 34 42 34 31 31
Moveable Pulley Maximum Full Turns 666666
Factory Speed Setting (rpm) 812 853 812 853 780 780
MID-LOW RANGE
Motor Hp 555555
Motor Nominal Rpm 1750 1750 1750 1750 1750 1750
Maximum Continuous Bhp 5.75 5.75 5.75 5.75 5.75 5.75
Maximum Continuous Watts 4290 4290 4290 4290 4290 4290
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
Fan Rpm Range 949-1206 949-1206 949-1206 949-1206 805-1007 805-1007
Motor Pulley Min. Pitch Diameter (in.) 3.7 3.7 3.7 3.7 4.8 4.8
Motor Pulley Max. Pitch Diameter (in.) 4.7 4.7 4.7 4.7 6 6
Blower Pulley Pitch Diameter (in.) 6.8 6.8 6.8 6.8 10.4 10.4
Blower Pulley Shaft Diameter (in.) 1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
Blower Pulley Type FixedFixedFixedFixedFixedFixed
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 (rpm) 43 43 43 43 34 34
Moveable Pulley Maximum Full Turns 666666
Factory Speed Setting (rpm) 1078 1078 1178 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 8.63 8.63 8.63 8.63 8.63 8.63
Maximum Continuous Watts 6434 6434 6434 6434 6434 6434
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
Fan Rpm Range 941-1176 941-1176 941-1176 941-1176 941-1176 941-1176
Motor Pulley Min. Pitch Diameter (in.) 4.8 4.8 4.8 4.8 4.8 4.8
Motor Pulley Max. Pitch Diameter (in.) 6.0 6.0 6.0 6.0 6.0 6.0
Blower Pulley Pitch Diameter (in.) 8.9 8.9 8.9 8.9 8.9 8.9
Blower Pulley Shaft Diameter (in.) 1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
Blower Pulley Type FixedFixedFixedFixedFixedFixed
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 (rpm)
39 39 39 39 39 39
Moveable Pulley Maximum Full Turns 666666
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 11.50 11.50 11.50 11.50 11.50 11.50
Maximum Continuous Watts 8579 8579 8579 8579 8579 8579
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
Fan Rpm Range 1014-1297 1014-1297 1014-1297 1014-1297 1014-1297 1014-1297
Motor Pulley Min. Pitch Diameter (in.) 4.3 4.3 4.3 4.3 4.3 4.3
Motor Pulley Max. Pitch Diameter (in.) 5.5 5.5 5.5 5.5 5.5 5.5
Blower Pulley Pitch Diameter (in.) 7.4 7.4 7.4 7.4 7.4 7.4
Blower Pulley Shaft Diameter (in.) 1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
Blower Pulley Type FixedFixedFixedFixedFixedFixed
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 (rpm) 47 47 47 47 47 47
Moveable Pulley Maximum Full Turns 666666
Factory Speed Setting (rpm) 1156 1156 1156 1156 1156 1156
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