The
Autodual
Manage
your compressor operation and prevent excess idling. Limit the idle
periods to maximum of 20 minutes and save on your energy bill. Prevent
motor overload and reduce oil carryover with the Autodual control for
compressors 15-100 HP.
Automatic dual control
for any reciprocating air
compressor with head unloaders and rotary screw with load / unload
control.
Helps reduce common problems associated with
compressors unloading for long periods of time, such as;
- Catastrophic failure caused by loss of oil in
crankcase
- Excessive oil consumption
- Fouling compressor valves
- Passing oil downstream into system
- Glazing of cylinder surfaces and overheating
- Unnecessary wear on running parts
- Electric motor burn out due to excessive start/stop
cycling
- High electrical costs
Cost Control - Increased operating efficiency
The Autodual is so effective it typically allows end
users to recover the cost of their compressor within five years in power
savings alone.
Example: A
savings analysis of a 25 HP, 2 stage, reciprocating or rotary screw compressor
operating a factory that is producing 7 days per week on three shifts (8760
hours per year).
Basis
25 HP = 23 KW x motor P.F. of 1.15 (power factor) = 26.45
KW Unloaded KW = Full Load KW (26.45KW) x
Unloaded KW (25%) x
losses (part load motor efficiency & power factor = 35%
efficiency loss .65
1st Shift: 75% Loaded, 25%
Unloaded 2nd Shift: 40% Loaded, 60% Unloaded 3rd Shift: 20% Loaded, 80%
Unloaded Electric Rate: $.10/KWH Unloaded kW: 25% of Full Load =
10.17KW at 8760 hours per year
Total Annual Electric
Energy Savings = 49,000 KwHrs/year
Unloaded kW
Savings 1st Shift: 2920 hours x .25 x 10.17 x .10 =
$743 2nd Shift: 2920 hours x .60 x 10.17 x .10 =
$1782 3rd Shift: 2920 hours x .80 x 10.17
x .10 = $2375
Total Annual Power Savings: $4900
Standard features
- Automatic time out 3-20 minutes; or start stop
control
- Running timer accurately tracks total hours of
compressor operation
- 0-300 psi liquid filled SS system pressure gauge
- Fail safe design - Compressor unloads in event of electrical
failure
- Adjustable cycle pressures 70-200 psig shutoff
- 20-25 psi differential standard at all pressures
- Easy
Installation or retrofit
- 6-ft 115 or 230 volt power cord
- Warranty -One year
- Patent pending
Options
- Emergency
Shutdown - External 6' Power cord connects to any
non-powered normally closed (N.C.) emergency shutdown device, i.e., low oil
pressure, low oil level, high air temperature, power line monitors, starter
overload, or any of the above combinations. Failure of any of the above shuts
the compressor motor down 20 seconds after receiving fault signal, activating
flashing light on the AutoDual.
- Timed tank
Drain - Activates tank mounted solenoid drain for 5
seconds for every hour of compressor pumping
time. Motor idle time does not affect the drain timer,
saving energy and wasted air. Includes 6' Power cord to tank drain solenoid and
Console mounted manual drain (test drain) button.
- Nema 4
Packaging - Universal AutoDual enclosed in a
durable, watertight NEMA 4 rated Enclosure. Great for outdoor or high
contaminant applications.
- AutoDual Controller for high pressure applications - The AutoDual Controller repackaged in a
12" X 12" X 6" NEMA 1 rated enclosure. Unit has adjustable pressure deadband
function and pressure range adjustment to 5000 p.s.i. (Low pressure control air
is required for head unloading)
Optional Features
Multiple
Lead/Lag Compressor Control:
- Manual 2 or 3 Compressor
Control - Manual Switching Between two or three
AutoDual Controllers/Compressors.
- Automatic
Lead/Lag Switching
- Available for 2 Compressor
systems, Automatic lead compressor cycle switching user selectable from 10min to
7 Days. Lag compressor automatically cycles to provide additional air under high
load conditions, with full AutoDual functionality (2 Autoduals
required).
- Autodual Simplex Lead/Lag
Controller Simplex controller runs two compressors
in Lead/Lag mode with ONE Autodual controller. No control connection required
between units. Ideal solution for Intellysis or "T" control units. Installs on
second compressor only, yet gives lead/lag functionality to both
compressors. Manual and full automatic lead/lag switching
available.
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