Carrier 50PG03-07 - Manual (Page 6)

6
Table 1 — Physical Data (cont)
BASE UNIT 50PG (cont) 03 04 05 06 07
EVAPORATOR FAN Centrifugal Type, Belt Drive
Quantity…Size (in.) Low 1...12 x 9 1...12 x 9 1...12 x 9 1...12 x 9 1...12 x 9
High 1...12 x 9 1...12 x 9 1...12 x 9 1...12 x 9 1...12 x 9
Type Drive Low Belt Belt Belt Belt Belt
High Belt Belt Belt Belt Belt
Nominal Cfm 800 1200 1600 2000 2400
Maximum Continuous Bhp Low 0.85 0.85 0.85 0.85/2.40† 2.40
High 0.85 0.85 1.60/2.40† 1.60/2.40† 3.10
Motor Nominal Rpm 1620 1620 1620 1725 1725
Motor Frame Size Low 48Y 48Y 48Y 56Y 56Y
High 48Y 48Y 56Y 56Y 56Y
Fan Rpm Range Low 482-736 482-736 596-910 690-978 796-1128
High 656-1001 796-1128 828-1173 929-1261 1150-1438
Motor Bearing Type Ball Ball Ball Ball Ball
Maximum Fan Rpm 2000 2000 2000 2000 2000
Motor Pulley Pitch Diameter Range (in.) Low 1.9-2.9 1.9-2.9 1.9-2.9 2.4-3.4 2.4-3.4
High 1.9-2.9 2.4-3.4 2.4-3.4 2.8-3.8 4.0-5.0
Fan Pulley Pitch Diameter (in.) Low 6.8 6.8 5.5 6.0 5.2
High 5.0 5.2 5.0 5.2 6.0
Nominal Motor Shaft Diameter (in.) Low 1 /
2
1 /
2
1 /
2
5 /
8
5 /
8
High
1 /
2
1 /
2
5 /
8
5 /
8
7 /
8
Belt...Pitch Length (in.)
Low 49.3 49.3 49.3 49.3 49.3
High 49.3 49.3 49.3 49.3 52.3
Belt…Type Low AX AX AX AX AX
High AX AX AX AX AX
Pulley Center Line Distance Min. (in.) Low 16.2 16.2 16.2 16.2 16.2
High 16.2 16.2 16.2 16.2 16.2
Pulley Center Line Distance Max. (in.) Low 20.2 20.2 20.2 20.2 20.2
High 20.2 20.2 20.2 20.2 20.2
Speed Change per Full Turn of
Movable Pulley Flange (rpm)
Low 48 48 59 58 66
High 65 62 69 66 58
Movable Pulley Maximum Full
Turns from Closed Position
Low 5 5 5 5 5
High 5 5 5 5 5
Factory Pulley Setting (rpm) Low 482 482 596 690 796
High 656 796 828 929 1150
Fan Shaft Diameter at Pulley (in.) 3 /
4
3 /
4
3 /
4
3 /
4
3 /
4
HIGH-PRESSURE SWITCH (psig)
Cutout 660 ± 10 660 ± 10 660 ± 10 660 ± 10 660 ± 10
Reset (Auto.) 505 ± 20 505 ± 20 505 ± 20 505 ± 20 505 ± 20
RETURN-AIR FILTERS Throwaway
Quantity…Size (in.) 4…16 x 20 x 2 4…16 x 20 x 2 4…16 x 20 x 2 4…16 x 20 x 2 4…16 x 20 x 2
LEGEND
TXV --- Thermostatic Expansion Valve
* Aluminum evaporator coil/aluminum condenser coil.
{
Single phase/three phase.
50PG03
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07