Robinair 15120A_15121A - Manual (Page 2)

Table of Contents
Warnings ...............................................................1
CoolTech
® high performance vacuum pumps.........1
Pump components .............................................2
Before using your vacuum pump ............................2
15121A Wiring Instructions .....................................3
To use the gas ballast feature.................................3
To shut down your pump after use .........................3
To maintain your high vacuum pump ......................3
Vacuum pump oil ...............................................3
Oil change procedure ........................................3
Cleaning your pump ..........................................4
Motor lubrication ...............................................4
Troubleshooting guide ............................................4
Failure to start ....................................................4
Oil leakage .........................................................4
Failure to pull a good vacuum ...........................4
CoolTech
® specifications ........................................4
When you need help ..............................................4
Replacement parts .................................................5
Warranty coverage .................................................5
Operating Manual
1
CoolTech ® High Performance
Vacuum Pumps
Congratulations on purchasing one of Robinair’s
top quality CoolTech ® vacuum pumps. Your
pump has been engineered specifically for air
conditioning and refrigeration service, and is built
with Robinair’s proven offset rotary vane for fast,
thorough evacuation.
You’ll appreciate these key features...
Iso-Valve
TM
Allows the pump to be shut off while still connected
to the A/C-R system, which is handy for checking
rate of rise. With the valve handle in the OPen
position, the pump is open to the system being
evacuated. In the ClOse position, the pump is
isolated from the system.
High vacuum rating
The two-stage, offset rotary vane design provides
powerful, quiet, high vacuum capability and
ensures moisture removal, while the high pumping
capacity reduces evacuation time.
Lifetime filtration
The intake filter prevents foreign matter from
entering the pumping chamber, and an exhaust
filter separates oil vapor from the exhaust flow.
Gas ballast
A precise amount of atmospheric air is introduced
into the pump, preventing condensation of moisture
vapor and helping maintain the purity of the pump
oil. By using the gas ballast, the pump operates
more efficiently and pump life is extended.
Sure-grip handle
The one-piece, molded handle makes it easy
to carry the pump to and from job sites, and the
handle stays cool to the touch during operation.
Compact design
The pump measures approximately 42 cm
(16 1 /
2
in.) long, while aluminum housing and offset
rotary vanes keep the pump weight low, making
it easy to carry.
NOTICE: Airborne
Noise Emissions
This equipment has been tested
for airborne noise emission
per the Council Directive for
Machinery (89/392/EEC) Section
1.7.4 Instructions — Essential
Health and Safety Requirements.
Sound levels do not exceed
80dB(A) actual value.
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 flammable refrigerants.
Warnings
Wear goggles when working with
refrigerants. Contact with refrigerants
may cause injury.
Incorrect use or connections may
cause electrical shock hazards. Study
and follow the instructions carefully,
and take precautions to avoid electrical
shock hazards. All associated
devices are properly grounded before
energizing circuits.
The 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.