Robinair 15296, 15226 Operating Manual

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Operating
M

anual

Models 15234/15226/15296
Two-Stage V acuum Pump

For use with refrigerants
R-12, R-22, R-500, R-502, or R-134a

1.2 cfm

(at 60 Hz)

© 2000, SPX Corporation

2

PARTS IDENTIFICATION

BLACK EXHAUST

PLUG (NOTE VENT HOLE)

RED SHIPPING PLUG

(REMOVE AND

DISCARD)

GAS

BALLAST

VALVE

INLET

CAP

SIGHT

GLASS

OIL LEVEL

INLET

“TEE” FITTING

1

/4" MFL INLET

(R-12, 22, 500, 502)

1

/2" ACME INLET

(R-134a)

WARNING!

Use separate manifolds and hoses for R-134a systems. Cross­contamination with other refrigerant types will cause severe
damage to the A/C systems and to service tools and equipment.
Do not mix refrigerant types through a system or in the same
container!

For use on A/C 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.

Vacuum Pump Models 15234/15226/15296

OUT OF WARRANTY

Any Robinair high vacuum pump which is beyond the one-year warranty period
and fails to operate correctly should be returned to the distributor with a full
written explanation of the problem, or you may return it yourself to one of the
authorized Robinair Service Centers for repair. Go to Robinair.com or call
1-800-822-5561 for instructions on returning a pump.

Prior to returning an out-of-warranty pump, review all maintenance procedures
to avoid an unnecessary return. Note that contaminated oil or an incorrect oil
level will adversely affect pump performance. These conditions should be
checked before requesting service. Replacement parts are available if you desire
to repair your own pump. However, this should be considered only in out-of-
warranty situations.

MODEL 15234 15226 15296
Number of Stages 222

Free air Displacement 1.2 cfm* 1.2 cfm* 1.0 cfm
Factory Micron Rating 50 50 50
Oil Capacity 5 oz. 5 oz. 5 oz.

Weight 10 lbs. 10 lbs. 10 lbs.

Width 4

Length 9

Height 8

Intake Fittings

Motor Size

Voltage 110-115V 220V 250V

Operating 185
Temperature 85

Because of ongoing product improvements, we reserve the right to
change design, materials, and specifications without notice.

Vacuum Pump Models 15234/15226/15296

3

INTRODUCTION

Your vacuum pump has been factory tested and meets Robinair’s stringent
quality standards. This high performance pump will provide you with years of
trouble-free service if you follow these instructions for operating and maintain­ing the pump.

The pump’s offset rotary vane design provides high efficiency operation. The
motor is properly sized to ensure 32oF (0oC) starting at 90 percent of the rated
voltage. And the inlet “tee” fitting lets you use one pump for R-12, R-22,
R-500, R-502, and R-134a systems.

Be careful when removing the pump and contents from the shipping carton. If
there is any apparent shipping damage to the pump, the shipping company
should be notified immediately and the container saved for inspection.

OPERATING INSTRUCTIONS

WARNING! Wear safety goggles when working with
refrigerants. Contact with refrigerant can cause eye
injury.

1. Remove and discard the red shipping plug at the top of the finned reservoir.

2. Fill the pump reservoir to the “OIL LEVEL” line on the sight glass on the
front of the pump. Use the oil packaged with the vacuum pump or fresh
Robinair Premium High Vacuum Pump Oil, available at your supplier.

3. Install the black plastic operating exhaust plug. Note that the operating plug
is notched to allow exhaust flow.

CAUTION! Do not attempt to operate the pump with the exhaust
port plugged. To do so could result in permanent damage to the
pump or could cause the plug to be blown from the pump reservoir.

4. Note the electric motor voltage rating, and connect to the proper power
source.

CAUTION! Avoid the use of extension cords. An exten­sion cord may overheat and cause fire. If you must use an
extension cord, use the shortest possible cord with a
minimum size of 14 AWG.

You are now ready to remove the inlet cap for the appropriate inlet (1/4" for
R-12, R-22, R-500, and R-502; 1/2" Acme for R-134a) to connect the pump to
the air conditioning system. Follow the system manufacturer’s directions for
evacuation.