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Controls, Start-Up, Operation, Service and ... - Climayoreo

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Saturated Discharge Temperature (deg F)<br />

Saturated Discharge Temperature (deg F)<br />

150<br />

145<br />

140<br />

135<br />

130<br />

125<br />

120<br />

115<br />

110<br />

105<br />

100<br />

95<br />

90<br />

85<br />

75 Ton HIGH CAP CIRCUIT A Charging Chart<br />

All Compressors on a Circuit Must be Operating<br />

All Outdoor Fans Must be Operating<br />

80<br />

55 60 65 70 75 80 85 90 95 100 105 110 115 120<br />

150<br />

145<br />

140<br />

135<br />

130<br />

125<br />

120<br />

115<br />

110<br />

105<br />

100<br />

95<br />

90<br />

85<br />

80<br />

Reduce Charge if Above Curve<br />

Outdoor Air Temperature (deg F)<br />

158<br />

Add Charge if Below Curve<br />

Fig. 80 — Charging Chart — 48/50P075 High-Capacity Units — Circuit A<br />

75 Ton HIGH CAP CIRCUIT B Charging Chart<br />

All Compressors on a Circuit Must be Operating<br />

All Outdoor Fans Must be Operating<br />

Reduce Charge if Above Curve<br />

SST= 60 F<br />

SST= 45 F<br />

SST= 30 F<br />

a48-8546<br />

55 60 65 70 75 80 85 90 95 100 105 110 115 120<br />

Outdoor Air Temperature (deg F)<br />

Add Charge if Below Curve<br />

Fig. 81 — Charging Chart — 48/50P075 High-Capacity Units — Circuit B<br />

a48-8547<br />

SST= 60 F<br />

SST= 45 F<br />

SST= 30 F

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