9
MINIMUM - MAXIMUM OPERATING CONDITIONS ALL MODELS
Min.-Max. Inlet Air Pressure (compressed air at inlet to dryer) 43.5 - 232 psig (3 - 16 bar)
Min.-Max. Inlet Air Temperature (compressed air at inlet to dryer) 39°F - 122°F (4°C - 50°C)
Min.-Max. Ambient Temperature 36°F - 113°F (2°C - 45°C)
REFRIGERANT PRESSURE SWITCH SETTINGS
Refrigerant Compressor Control
High Pressure Switch Setting
Model Refrigerant
Cut-Out
psig (barg)
Cut-In
(psig)
DFX 1.1
DFX 1.2
R-134a
304 psig
(21 bar)
Manual
Reset
DFX 1.5
DFX 2.1
DFX 3.1
DFX 4.1
DFX 4.5
DFX 5.5
R-407c
406 psig
(28 bar)
Manual
Reset
CORRECTION FACTORS (MULTIPLIERS)
Air Inlet Temperature
°F (°C)
Multiplier
Air Inlet Pressure
psig (barg)
Multiplier
Ambient Air Temperature
°F (°C)
Multiplier
80°F (27°C)
90°F (32°C)
100°F (38°C)
110°F (43°C)
120°F (49°C)
1.46
1.23
1.00
0.82
0.68
75 psig (5.2 bar)
100 psig (6.9 bar)
120 psig (8.3 bar)
150 psig (10.3 bar)
225 psig (15.5 bar)
0.86
1.00
1.04
1.09
1.15
80°F (27°C)
90°F (32°C)
100°F (38°C)
110°F (43°C)
120°F (49°C)
1.12
1.06
1.00
0.83
0.68
ENGINEERING DATA
DEW POINT LEVEL RANGE
Dew Point Level Temperature Range Color
Lv 5
Over 63°F (17°C) Red
Lv 4
55°F - 61°F (13°C - 16°C) Orange
Lv 3
48°F - 54°F (9°C - 12°C) Green
Lv 2
39°F - 46°F (4°C - 8°C) Green
Lv 1
Under 39°F (4°C) Blue