Instructions/Parts
4
Operation
Operation
NOTE: Installations above 6000 ft (1825 m)
Unit is adjusted to operate in altitudes up to 6000 ft
(1825 m). If unit is installed in an altitude above this, and
has not been preset at the factory for this altitude, con-
tact Manufacturer’s Service Department.
Start-up
Start refrigeration system by pushing on/off switch to the
ON position (depress rocker switch on side marked “I”).
NOTE: The fault light may illuminate when unit is ener-
gized. Light should go out approximately 5 min. after
start-up. If light remains lit after 30 min. or illuminates
after going out, see Troubleshooting page 7.
Operating Checkpoints
Check the following on a periodic basis:
•
Rocker switch is in the ON position.
•
Amber fault light is out.
•
Condensate is being regularly discharged.
Minimum/Maximum Operating Conditions
•
Minimum/Maximum air pressure: 20/175 psig (1.4/
12.3 kgf/cm
2
)
•
Maximum inlet air temperature: 180°F (82°C)
•
Minimum/Maximum ambient temperature: 35/110°F
(2/43°C)
•
Maximum flow capacity:
For dryers without an aftercooler installed upstream
Flow capacity in scfm (m
3
/min) @ 180°F (82°C) inlet
temperature, 160°F (71°C) inlet pressure dew point,
95°F (35°C) ambient temperature, 50°F (10°C) outlet
pressure dew point, and less than 5 psi (0.35 kgf/cm
2
)
pressure drop.
60 Hz
50 Hz
For dryers with an aftercooler installed upstream
Flow capacity in scfm (m
3
/min) @ 100°F (38°C) inlet
temperature, 100°F(38°C) inlet pressure dew point,
100°F (38°C) ambient temperature, 50°F (10°C) outlet
pressure dew point, and less than 10 psi (0.7 kgf/cm
2
)
pressure drop.
60 Hz
50 Hz
On/Off Switch
Fault Light
Control Panel
Inlet Pressure
psig (kgf/cm
2
) 175 (12.3) 150 (10.6)
125
(8.8)
100
(7.0)
Model
6880
29 (0.82)
27 (0.76)
25 (0.71)
23 (0.65)
6885
41 (1.16)
38 (1.08)
35 (0.99)
32 (0.91)
6890
58 (1.64)
54 (1.53)
50 (1.42)
45 (1.27)
6895
87 (2.46)
81 (2.29)
75 (2.12)
68 (1.93)
Inlet Pressure
psig (kgf/cm
2
) 175 (12.3) 150 (10.6)
125
(8.8)
100
(7.0)
Model
6880
24 (0.68)
23 (0.65)
21 (0.59)
19 (0.54)
6885
31 (0.88)
29 (0.82)
27 (0.76)
24 (0.68)
6890
58 (1.64)
54 (1.53)
50 (1.42)
45 (1.27)
6895
71 (2.01)
66 (1.87)
61 (1.73)
55 (1.56)
Inlet Pressure
psig (kgf/cm
2
) 175 (12.3) 150 (10.6)
125
(8.8)
100
(7.0)
Model
6880
40 (1.13)
37 (1.05)
34 (0.96)
31 (0.88)
6885
55 (1.56)
51 (1.44)
47 (1.33)
43 (1.22)
6890
78 (2.21)
73 (2.07)
67 (1.90)
61 (1.73)
6895
118 (3.34) 110 (3.12) 102 (2.89) 92 (2.61)
Inlet Pressure
psig (kgf/cm
2
) 175 (12.3) 150 (10.6)
125
(8.8)
100
(7.0)
Model
6880
33 (0.93)
31 (0.88)
29 (0.82)
26 (0.74)
6885
43 (1.22)
40 (1.13)
37 (1.05)
33 (0.93)
6890
78 (2.21)
73 (2.07)
67 (1.90)
61 (1.73)
6895
96 (2.72)
90 (2.55)
83 (2.35)
75 (2.12)
