Nortek FT4BE-K - Page 13

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4 Ton Charging Chart - Cooling
Liquid Temperature (
0
F)
Liquid Pressure (psig)
Remove refrigerant when the above curve
Add refrigerant when below the curve
Figure 10. Charging Chart for 4 Ton Units (TXV Matches)
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360
380
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500
520
540
560
580
600
75 80 85 90 95 100105 110 115 120 125 130 135
5 Ton Charging Chart - Cooling
Liquid Temperature (
0
F)
Liquid Pressure (psig)
Remove refrigerant when the above curve
Add refrigerant when below the curve
Figure 11. Charging Chart for 5 Ton Units (TXV Matches)