Operation - Champion CRN Series Instruction Manual

1.4 Electrical connections
IMPORTANT: Use copper supply wires only.
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.
C. Electrical entry on larger dryers is through a hole in
the cabinet. It is located on the right side panel when
facing the front of the unit. Top right corner. Connect
power source to the terminal strip in the electrical
enclosure as shown on the electrical schematic
included with the dryer.
If optional disconnect is supplied, use entry hole in
disconnect enclosure.
NOTE: Refrigeration condensing unit is designed to run
continuously and should NOT be wired to cycle on/off
with the air compressor.
1.5 Moisture separator
A. Separator (and Oil Removal Filter where applicable) has
an external 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.
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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
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)
2.2 Start-up
IMPORTANT: Energize dryer disconnect switch (provided
by others, sec NEC) 24 hours before refrigeration
compressor is started! Never use the disconnect switch to
shut-down the dryer for a extended period of time
(except for repair). Failure to follow these instructions
may result in a non-warrantable compressor failure.
NOTE: It is recommended that dryer be started 15
minutes before compressed air flow begins.
NOTE: If there is no power to the control board for a
period of two weeks or more, it may return to the
default mode.
1. Confirm On/Off Switch is in the "Off" position.
2. On water-cooled models: after 24 hours, begin
cooling water flow.
3. Check for proper electrical voltage.
4. Energize dryer. Green power-on light will illuminate.
5. Slowly pressurize unit air side by opening inlet
isolation valve. Check for leaks.
6. After 15 minutes, open outlet isolation valve slowly.
7. Close air by-pass valve.
8. Identify I-Controller version Level on dryer
A. Models with I-Controller Level 2 - proceed to
Step 9.
B. For Models with I-Controller Level 3, see Section
2.7 for further instructions.
9. Toggle ON/OFF switch to the ON position.
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