Product Manual

(Duplex Models)
STARTING THE COMPRESSOR
Prior to actually running the compressor,
check the following items:
Crankcase oil - Make sure the sight glass
shows ½ full or slightly above.
Make sure all rags, tools, oil, etc. are away
from the unit.
Open the air system to free it of any pressure.
Switch the compressor on for a few
revolutions to make sure the rotation is
correct. Correct rotation is clockwise
when facing the sight glass on the pump.
Operate the compressor for a few minutes
unloaded (air system open) then allow the
compressor to pump up. Make sure the
electrical pressure switch properly switches
off the compressor according to the setting
desired. 175 for Two Stage.
(135 psi - Single Stage or 165 psi - RCP-561VNS)
Make sure the pressure in the tank does
not exceed its rating. Single Stage units - 135 psi
Two Stage units at a maximum of 175 psi.
(165 for Model RCP-561VNS)
If the pressure gauge indicates a pressure that
is higher than these maximum pressures,
shut off compressor immediately and call
your distributor.
STARTING THE COMPRESSOR
CAUTION
Alternating Running Procedure
Initial power to the controller takes about 5 seconds to power up and run
Motor A will start and then Motor B after a 10 second delay
Both motors will run until unit reaches cutoff pressure (175 psi)
Each time the unit starts after initial start, the “Lead” motor will alternate
If the unit runs for more than 5 minutes, the second Motor will come on and run
until the unit reaches cutoff pressure
The second motor will also come on if the air demand is higher than one pump/
motor can produce and the pressure drops to around 135 psi (10 sec. delay)
A or B Running Procedure
By selecting A or B on the switch, either Pump/Motor A or Pump/Motor B will
operate independently, as a simplex compressor.
Normal
Operation
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