Carrier 50PG16 series, Руководство по установке

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Table 1 — Physical Data (cont)
BASE UNIT 50PG (cont) 16
EVAPORATOR FAN (cont) Centrifugal Type, Belt Drive
Motor Pulley Pitch Diameter Min (in.) Low 4.2
Mid-Low 4.2
High 5.2
Motor Pulley PItch Diameter Max (in.) Low 5.2
Mid-Low 5.2
High 6.2
Fan Pulley Pitch Diameter Low 10.2
Mid-Low 8.5
High 8.5
Nominal Motor Shaft Diameter (in.) Low
7
/
8
Mid-Low
7
/
8
High 1
3
/
8
Belt
…
Pitch Length (in.) Low 49.3
Mid-Low 47.8
High 43.8
Belt
…
Type Low AX
Mid-Low BX
High BX
Pulley Center Line Distance Min. (in.) Low 14.2
Mid-Low 10.8
High 8.6
Pulley Center Line Distance Max. (in.) Low 10.8
Mid-Low 14.2
High 12
Speed Change (rpm) Low 34
Mid-Low 41
High 41
Movable Turns Low 5
Mid-Low 5
High 5
Factory Pulley Setting (rpm) Low 812
Mid-Low 983
High 1191
Fan Shaft Diameter at Pulley (in.) 1
3
/
16
HIGH-PRESSURE SWITCH (psig)
Cutout 660
±
10
Reset (Auto.) 505
±
20
RETURN-AIR FILTERS Throwaway Type
Quantity
…
Size (in.) 8...20 x 20 x 2
LEGEND
TXV --- Thermostatic Expansion Valve
*Aluminum Evaporator/Aluminum Condenser coil fin material.
50PG16