Robinair 15120A, 15121A User Manual

High Performance Vacuum Pump

Model 15120A/15121A Operating Manual

.................................... 2

Bombas de Vacío de Alto Rendimiento

Modelo 15120A/15121A Manuel del Operador

............................... 8

Pompe à Vide à Haut Rendement

Modèle 15120A/15121A Manuel d’utilisation

................................ 16

Hochleistungs-Vakuumpumpe

Modelle 15120A/15121A Bedienungsanleitung

............................. 24

Table of Contents

CoolTech® High Performance Vacuum Pumps

Warnings ...............................................................1

CoolTech

Pump components .............................................2

Before using your vacuum pump 15121A Wiring Instructions

To use the gas ballast feature.................................3

To shut down your pump after use To maintain your high vacuum pump

Vacuum pump oil ...............................................3

Oil change procedure ........................................3

Cleaning your pump ..........................................4

Motor lubrication ...............................................4

Troubleshooting guide

Failure to start ....................................................4

Oil leakage .........................................................4

Failure to pull a good vacuum ...........................4

CoolTech

When you need help ..............................................4

Replacement parts Warranty coverage

high performance vacuum pumps.........1

............................2

.....................................3

.........................3

......................3

............................................4

specications ........................................4

.................................................5

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.

Operating Manual

Congratulations on purchasing one of Robinair’s top quality CoolTech

pump has been engineered specically 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

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 position, the pump is open to the system being evacuated. In the 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 ltration

The intake lter prevents foreign matter from

entering the pumping chamber, and an exhaust

lter separates oil vapor from the exhaust ow.

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 efciently 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 rotary vanes keep the pump weight low, making it easy to carry.

/2 in.) long, while aluminum housing and offset

vacuum pumps. Your

OPEN

CLOSE position, the pump is

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.

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.

Pump components

1. Intake Fitting

2. Gas Ballast Valve (located beside handle)

3. Exhaust Filter

4. Oil Fill Port

5. Sight Glass

6. Die-Cast Aluminum Housing

7. Oil Drain

8. Molded Polycarbonate Base

9. Iso-ValveTM (isolates the pump from the system)

10. High Torque Motor

11. Power Switch

12. Sure-Grip Handle

Before using the vacuum pump

Motors are designed for operating voltages plus or minus 10% of the normal rating (see Specications). Single voltage motors are supplied fully connected and ready to operate.

1. Verify the voltage and frequency at the

outlet match specications on the pump

motor decal. Place the ON / OFF switch in the OFF position. Verify the gas ballast valve is closed.

2. The pump is shipped without oil in the reservoir. Remove and discard the plastic plug from the top of the oil reservoir. Before

starting the pump, ll with oil until the oil just

shows in the bottom of the sight glass. The approximate oil capacity of the pump is 488 milliliters (16

/2 ounces).

3. Thread in the exhaust lter (hand tight), and

remove the cap from one of the inlet ports. Turn the Iso-Valve to OPEN. Turn the motor switch ON. When the pump runs smoothly, turn the Iso-Valve to CLOSED and replace the cap on the inlet port.

This may take from two to 30 seconds

depending on ambient temperature. After the pump runs for approximately one minute, check the sight glass — oil should be even with the sight glass OIL LEVEL line. Add oil if necessary.

When the pump is running, the oil level should

be even with the OIL LEVEL line. Underlling will result in poor vacuum performance. Overlling can

result in oil blowing from the exhaust. The vacuum pump is now ready to evacuate air

conditioning and refrigeration systems. Follow normal service procedures and the A/C-R manufacturer’s instructions for connections to the system.

CAUTION: Before connecting the 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 use of our Refrigerant Recovery and Recycling equipment.

Rev. C May 10, 2010

Operating Manual

+ 4 hidden pages