2
Compressor
Oil Removal
Filter
Aftercooler
Automatic Drain
Dryer
Separator
Receiver
TYPICAL COMPRESSED AIR SYSTEM
INSTALLATION
Ambient Air Temperature
Locate the dryer indoors where the ambient air temperature
will be between 40°F (4°C) and 110°F (43°C). Intermittent op-
eration at ambient temperatures up to 113°F (45°C) will not
damage the dryer but may result in a higher dew point or dryer
shutdown due to high refrigerant discharge pressure (see Field
Service Guide).
Do not operate dryers at ambient air temperatures below 40°F
(4°C). Such operation may result in low suction pressure, caus-
ing freeze-up.
Location and Clearance
Mount the dryer on a level solid surface. Holes are provided in
the dryer base to permanently mount the dryer to the floor. If
the base vibrates, bolt the unit down using vibration dampeners.
Allow at least 36 inches (914 mm) clearance on the sides and
the front of the dryer for cooling airflow and for service access.
System Arrangement
Liquid water in the inlet air will adversely affect the performance
of the dryer. Install the dryer downstream of an aftercooler or
separator so that the temperature of the dryer inlet air does
not exceed 120°F (49°C) and the inlet air does not contain any
liquid water.
If the compressed airflow is relatively constant and does not
exceed the dryer flow rating, it is recommended that the dryer
be located downstream of the receiver tank. If the nature of the
application is such that the air demand regularly exceeds the
dryer flow rating, it is recommended that the dryer be located
upstream of the receiver.
For safety and convenience, install inlet and outlet shutoff valves
and depressurization valves. These valves allow the dryer to be
isolated and depressurized for servicing. Bypass piping may
be installed around the dryer for uninterrupted airflow when
the dryer is serviced. If the compressed air operation cannot
tolerate undried air for short periods, install a second dryer in
the bypass line.
Compressed air systems commonly require filters to remove
compressor oils, particulates, condensed liquids and other
contaminants. When an oil-removal filter is used, it should be
installed downstream of the refrigerated dryer. At this location,
the life of the replaceable filter element is prolonged since
some of the entrained oil is removed by the dryer and drained
through the separator.
Piping and Connections
Piping must be furnished by the user unless otherwise speci-
fied. Connections and fittings must be rated for the maximum
operating pressure given on the dryer data plate and must be
in accordance with applicable codes. Support all piping; do not
allow the weight of any piping to stress the dryer or filter con-
nections. Piping should be at least the size of the inlet and outlet
connections to minimize pressure drop in the air system. See
Engineering Data section for dryer inlet and outlet connections
1. Air Inlet - Connect compressed air line from air source to
air inlet.
Refer to Serial Number Tag for maximum working
pressure. Do not exceed dryer's Maximum Working Pressure.
NOTE:
Install air dryer in air system at highest pressure possible
(e.g. before pressure reducing valves).
NOTE:
Install dryer at coolest compressed air temperature
possible. Maximum inlet compressed air temperature: 120°F
(49°C). If inlet air exceeds this temperature, precool the air with
an aftercooler.
2. Air Outlet - Connect air outlet to downstream air lines.
3. Bypass Piping - If servicing the dryer with interrupting the
air supply is desired, piping should include inlet and outlet
valves and an air bypass valve.
4. Water-cooled models - cooling water inlet and outlet.
a) Connect cooling water supply to cooling water inlet.
b) Connect cooling water return line to cooling water
outlet connection.
NOTE:
Strainer and water regulating valve are supplied on water-
cooled models. Also, it is recommended to add water inlet/
outlet temperature and pressure gauges to the water piping.
Removing Condensate
Condensate must be drained from the dryer to prevent re-
entrainment. The dryers are equipped with automatic drain
valves and internal drain hoses up to the drain connections on
the dryer cabinets. The user must install a separate discharge
line at the drain connection to carry off condensate to an envi-
ronmentally approved condensate collection/disposal system.
Piping or copper tubing 1/2 inch or larger is recommended
for condensate discharge lines. Install the drain lines so that
condensate can be seen as it drains.
Electrical Connections
The dryers are constructed according to NEMA Type 1 electrical
standards. Field wiring must comply with local and national fire,
safety and electrical codes. Installation must be in accordance
with the National Electrical Code.
IMPORTANT:
Use copper supply wires only.
1. Dryer is designed to operate on the voltage, phase, and
frequency listed on the dryer serial number tag.
2. Electrical entry is through a hole in the back of the cabinet.
Route wires through the bottom of the electrical enclosure.
Connect power source to the terminal strip in the electrical
enclosure as shown on the electrical schematics included
in this manual.
MCGUIRE AIR COMPRESSORS INC
1-888-229-9999
MCGUIRE AIR COMPRESSORS INC
1-888-229-9999
