If you think there is excessive mois-
ture, blow out the AC&R system with dry
nitrogen wherever possible. This reduces
the amount of contaminants that must
be “pulled” into the pump and increases
evacuation speed.
Use a nitrogen regulator valve with pres-
sure limited to 150 psi and a frangible
disc device set at 175 PSIG.
Oil Changes: CHANGE OIL AFTER EACH
USAGE
to protect pump components from
contaminants pulled into pump during
service. Place used oil in a sealable
container and dispose properly in accor-
dance with local regulations.
6
8. Use a SuperEvac
™
System I or II to
decrease vacuum
time by over 50%.
These systems
include a 2-valve
vacuum manifold
and two 3/8”
vacuum hoses which can evacuate
three times faster than a 1/4” hose.
9. Use a heat gun on the condenser and
evaporator to speed the evacuation
process.
STEP 1
Disconnect power
from motor.
Unscrew voltage
switch cover.
STEP 2
Remove cover,
use screwdriver to
switch to appropri-
ate voltage setting.
115=100-120vac
50/60 hz
230=230-240 vac
50/60 hz
STEP 3
Replace cover and
screw down by
hand. Do not use
drill as cover could
crack.
CAUTION
• Always remove cord before changing
voltage.
• Incorrect voltage setting can result in
destruction of controller electronics,
rendering motor inoperable.
• To maintain IP X2 rating, replace switch
cover to keep water out of controller.
• Over-tightening screw could result in
cracked cover.
Dual Voltage Motor Power Conversion (if applicable)
* Warranty is void if the set vacuum pump voltage does not match the power supply.
