Specifications

Cast Iron Series
Installation (Cont.)
t_vo-stage compressors or 150 psi for sin-
g]e stage compressors ASME safety valve
setting. Incorrect selection and installa-
tion of any tube, pipe or hose could result
in bursting and injury. Connect piping sys-
tem to tank using the same size fitting as
the discharge port.
INSTALLING A SHUT-OFF VALVE
A shut-off valve should be installed on
the discharge port of the tank to control
the air flow out of the tank. The valve
should be located between the tank and
the piping system.
IAWARNINGI Neverinstalla
shut-off valve
between the compressor pump and the
tank. Personal injury andlor equipment
damage may occur. Never use reducers
in discharge piping.
When creating a permanently installed
system to distribute compressed air, find
the total length of the system and select
pipe size from the chart. Bury under-
ground lines below the frost line and
avoid pockets where condensation can
gather and freeze.
Apply air pressure to the piping installa-
tion and make sure all joints are free
from leaksBEFOREunderground lines
are covered. Before putting the compres-
sor into service, find and repair all leaks
in the piping, fittings and connections.
MINIMUM PIPE SIZE
FOR COMPRESSED AIR LINE
10 1/2" 1/2" 3/4" 3/4"
20 314 3/4 3/4 1
40 314 1 1 I
60 3/4 1 1 1
100 1 1 1 1'/4
WIRING
[AWADPj,mjr. I All wiring and
a_'alaal'_'Wl electrical connec-
tions must be performed by a qualified
electrician. Installations must be in
accordance with local and national
codes.
IACAUTIO- Overheating. short
3 circuiting and fire
damage will result from inadequate
wiring.
Wiring must be installed in accordance
with National Electrical Code and local
codes and standards that have been set
up covering e[ectrical apparatus and
wiring. These should be consulted and
Eocalordinances observed. Becertainthat
adequate wire sizesare used,and that:
1. Serviceisof adequate ampere rating.
2. The supply line hasthe same electri-
cal characteristics(voltage, cyclesand
phase) asthe motor.
3. The line wire isthe proper sizeand
that noother equipment isoperated
from the same line.The chart gives
minimum recommended wire sizesfor
compressorinstallations.
MINIMUM WIRE SIZE
USE 75°C COPPER WIRE
5PL upto22.0 10AWG
S.0 8AWG 12AWG t4AWG
7.5 8AWG 10AWG 12AWG
10.0 HA 8AWG 12AWG
15.0 HA 6AWG 10AWG
25.0 HA 3AWG 8AWG
Pump
Safety Valve Access
Motor
Discharge
Tube
/
Check
Valve
Gauge
Drain cock
Pressure
,Switch
Factory
_" Mounted
Magnetic
Starter (Not on
_ all units)
__eparately)
Discharge Port
Isolation Pad
(available
separate
Figure 1 - Typical Vertical Unit Identification
Discharge
Tube
Pump
Motor
Pressure
Switch
Pressure Valve
Gauge _
Discharge Port
Drain Cock
_<_ Tank
o__,a, olat o2Pad
3