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6-36T-268-07
80
100
120
140
160
180
200
220
240
260
280
300
320
60 70 80 90 100 110 120
psig
(43.3)(37.8)(32.2)(26.7)(21.1)(15.6)
_
__
_F
(_
__
_C)
(Bar)
(5.5)
(6.9)
(8.3)
(9.7)
(11.0)
(12.4)
(13.8)
(15.2)
(16.6)
(19.3)
(20.7)
(22.0)
35_
__
_F(1.7_
__
_C) Box
(17.9)
Note: Curves to beused as troubleshooting guideonly for model series 69NT40-511 with
fresh air makeup vent closed, unit powered on 460 VAC/60hz and SMV 100% open.
Compressor Discharge Pressure Versus Ambient Air Temperature at Stable Box Temperature
80
100
120
140
160
180
200
220
240
260
280
300
320
60 70 80 90 100 110 120
Ambient Air Temperature
psig
(48.9)(43.3)(37.8)(32.2)(26.7)(21.1)(15.6)
(Bar)
0_
__
_F (--17.8_
__
_C) Box
(5.5)
(6.9)
(8.3)
(9.7)
(11.0)
(12.4)
(13.8)
(15.2)
(16.6)
(19.3)
(20.7)
(22.0)
(17.9)
Ambient Air Temperature
_
__
_F
(_
__
_C)