4
2.0 Operation
2.1 Minimum/Maximum operating conditions
A. Maximum inlet air pressure: refer to dryer serial
number tag
B. Minimum inlet air pressure: 30 psig (2.1 kgf/cm
2
)
C. Maximum inlet air temperature: 110
°
F (43
°
C)
D. Maximum ambient temperature:
Air-cooled models: 110
°
F (43
°
C)
Water-cooled models: 130
°
F (54
°
C)
E. Minimum ambient temperature: 45
°
F (7
°
C)
1.4 Electrical connections
A. Dryer is designed to operate on the voltage, phase,
and frequency listed on the serial number tag.
B. If dryer is supplied with a cord and plug, install in a
receptacle of proper voltage.
NOTE:
Refrigeration condensing unit is designed to run continu-
ously and should NOT be wired to cycle on/off with the air
compressor. Excessive cycling of the refrigeration system
could lead to premature failure and void the warranty.
1.5 Moisture separator
A. Separator (and Oil Removal Filter where applicable) has
an internal drain which automatically discharges
collected condensate. It may be desirable to pipe the
condensate from the Automatic Drain outlet to a
suitable drain.
NOTE:
Discharge is at system pressure. Drain line should be
anchored.
NOTE:
Condensate may contain oil. Comply with applicable laws
concerning proper disposal.
B. I -Controller Level 1 ONLY:
Separator has a knurled fitting with flexible drain
tubing attached. Be sure knurled fitting is tightened
by turning it counter-clockwise before operating
dryer.
TO CLOSE
TURN COUNTERCLOCKWISE
I - Controller Level 1 - Standard
33
°
F......................39
°
F
1
°
C.......................4
°
C
RNC SERIES
On/Off
Switch
Switch
Legend
Compressor
On Light
Dew point
Temperature
Indicator
Power On
Light
I - Controller Level 2 - Optional
33
33
°
F......................39
......................39
°
F
1
°
C.......................4
.......................4
°
C
RNC SERIES
On/Off
Switch
Switch Legend
Power On
Light
Compressor On
Light
Dew point
Temperature
Indicator
Drain
Push-to-Test
Condensate
Draining
