SAFETY PRECAUTIONS
WARNING! To prevent personal injury,
Wear goggles when working with refrigerants. Contact with
refrigerants may cause injury.
Incorrect use or connections may cause electrical shock hazards.
Read and follow the instructions carefully, and take precautions to
avoid electrical shock hazards. Conrm that all associated devices
are grounded correctly before energizing circuits.
Normal operating temperature will cause certain external portions of
the pump to be hot to the touch. Do not touch the pump housing or
motor during operation.
For use on A/C-R systems using CFCs, HCFCs, and HFCs in conjunction
with mineral oil, ester oil, alkylbenzene oil, and PAG oil as lubricants.
Not for use with ammonia or lithium bromide systems. Not for use with
ammable refrigerants.
VacuMaster® High Performance Vacuum Pumps
Congratulations on purchasing one of Robinair’s top quality
VacuMaster® vacuum pumps. Your pump has been engineered
specically for air conditioning and refrigeration service, and is built for
fast, thorough evacuation.
You’ll appreciate these key features . . .
The two-stage rotary vane design provides powerful, quiet, high vacuum
High
Vacuum
Rating
The intake screen prevents foreign matter from entering the pumping
Lifetime
Filtration
The one-piece, molded handle makes it easy to carry the pump to and
Sure-Grip
Handle
Aluminum housing and rotary vanes keep the pump weight low, making
Compact
Design
capability and ensures moisture removal, while the high pumping
capacity reduces evacuation time.
chamber, and an internal exhaust lter separates oil vapor from the
exhaust ow.
from job sites, and the handle stays cool to the touch during operation.
it easy to carry.
Solenoid
Models
15300 & 15500
Inlet Fitting
Handle &
Switch Assembly
Capacitor
(under handle)
Oil Fill Plug
Base
Housing Gasket
(not shown)
Gauge
Models
15301 & 15501
Exhaust Fitting
Sight Glass
Oil Drain Fitting
Inlet Fitting Adapter (included but not shown).
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Before using your vacuum pump . . .
Note about Motor Voltage Connections:
In all cases, motors are designed for operating voltages plus or minus 10%
of the normal rating (see Pump Specications). Single voltage motors are
supplied fully connected and ready to operate.
1. Conrm that the voltage and frequency at the outlet match the
specications on the pump motor decal.
2. Conrm the ON-OFF switch is in the OFF position before you plug the
pump into an outlet.
3. Remove and discard the exhaust plug from the exhaust tting.
4.
5. Replace the OIL FILL cap, and remove the cap from one of the inlet
6. Turn the motor switch to ON.
7. When the pump runs smoothly, replace the cap on the inlet port. This
8. After the pump has run for approximately one minute, check the sight
Note: When the pump is running, the oil level should be even with the
Your pump is now ready to evacuate air conditioning and refrigeration
The pump is shipped without oil in the reservoir. Before starting the
pump, ll it with oil. Remove the OIL FILL cap (red plastic plug at the
front of the handle), and add oil until oil appears in the bottom of the sight
glass. For oil capacities, refer to Pump Specications in this manual.
ports.
may take from two to 30 seconds, depending on the ambient temperature.
glass for the correct oil level — oil should be even with the sight glass
OIL LEVEL line. With the pump off, add oil if necessary.
line on the sight glass. Underlling the pump will result in poor vacuum
performance; overlling can result in oil blowing from the exhaust.
systems. Follow normal service procedures and the A/C-R
manufacturer’s instructions for connections to the system.
CAUTION: Before connecting your vacuum pump to an A/C-R system, remove
refrigerant from the system in an accepted manner. Damage to the
pump may occur if evacuation is started while the system is under
high pressure. Robinair recommends the use of its Refrigerant
Recovery and Recycling equipment.
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