Robinair 15301 User Manual

Models 15300

15301
15500
15501

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. Conrm 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

specically 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).

1

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 Specications). Single voltage motors are
supplied fully connected and ready to operate.

1. Conrm that the voltage and frequency at the outlet match the
specications on the pump motor decal.

2. Conrm 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 Specications 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. Underlling the pump will result in poor vacuum
performance; overlling 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.

2

To shut down the pump after use . . .

To help prolong pump life and promote easy starting, follow these

procedures for shutdown:

1. Close the manifold valve between the pump and the system.

2. Remove the hose from the pump inlet.

3. Cap the inlet port to prevent any contamination or loose particles from
entering the port.

To maintain your high vacuum pump . . .

Vacuum
Pump Oil

1. Run the pump for approximately one minute to warm the oil.

Oil
Change

2. Remove the OIL DRAIN cap. Drain contaminated oil into a suitable

Procedure

3. When the ow of oil has stopped, tilt the pump forward to drain

For maximum performance, Robinair recommends changing vacuum pump

oil after each use.

The condition and type of oil used in any high vacuum pump are

extremely important in determining the ultimate attainable vacuum.
Robinair recommends the use of its Premium High Vacuum Pump Oil. This
oil has been specically blended to maintain maximum viscosity at normal

running temperatures and to improve cold weather starts.

Robinair Premium High Vacuum Pump Oil is available in handy quart
containers or in convenient gallon containers. Order by part number:

13119 — Pint (shipped 12 pints per case)

13203 — Quart (shipped 12 quarts per case)

13204 — Gallon (shipped 4 gallons per case)

container, and dispose of it according to local, state, and federal
regulations. Oil can be forced from the pump by opening the inlet and
partially blocking the exhaust with a cloth while the pump is running. Do
not operate the pump for more than 20 seconds using this method.

residual oil.

3

4. Replace the OIL DRAIN cap.

Oil
Change

5. Remove the OIL FILL cap, and ll the reservoir with new vacuum pump

Procedure
contd.

oil until the oil appears at the bottom of the sight glass.
refer to Pump Specications in this manual.

For oil capacities,

6. Verify the inlet ports are capped; then turn ON the pump. Allow it to run
for one minute, and check the oil level. If the oil is below the sight glass
OIL LEVEL line, add oil slowly (with the pump running) until the oil
reaches the OIL LEVEL line. Replace the OIL FILL cap, and conrm the

inlet is capped and the drain cap is tight.

7. a) If the oil is badly contaminated with the sludge that forms when

water is allowed to collect in the oil, you may need to remove the oil

reservoir cover and wipe it out.

b) Another method of dealing with heavily contaminated oil is to force

the oil from the pump reservoir. To do this, allow the pump to run
until it is warmed up. While the pump is still running, remove the oil
drain cap. Slightly restrict the exhaust. This will back-pressure the oil
reservoir and force the oil from it, carrying more contaminants. When
the oil ceases to ow, turn off the pump.

Repeat this procedure as required until the contamination is removed.

Replace the OIL DRAIN cap, and rell the reservoir until the oil

appears at the bottom of the sight glass with fresh pump oil. (See
Step 4.)

Clean the pump with soap and water only. Do not use commercial

Cleaning
the Pump

This product must be grounded. In the event of an electrical short,

Grounding
Instructions

cleaners that contain degreasing agents.

grounding reduces the risk of electrical shock by providing an escape
wire for the electric current. This product is equipped with a power cord
having a grounding wire with an appropriate grounding plug. The outlet
used must be correctly installed and grounded according to local codes
and ordinances.

WARNING : Incorrect installation of the grounding plug

will result in electrical shock. When repair or replacement
of the power cord or plug is required, do NOT connect the

grounding wire to either at blade terminal. The wire with

green insulation (with or without yellow stripes) is the
grounding wire.

4

Grounding

Consult a qualied electrician when grounding instructions are not

Instructions
contd.

completely understood, or when in doubt regarding whether the product
is correctly grounded. Do not modify the plug provided; if the plug
does not t the outlet, have an appropriate outlet installed by a qualied

electrician.

Models 15300 and 15500 are for use on a nominal 120V circuit. A

temporary adapter may be used to connect this plug to a 2-pole receptacle
when a correctly grounded outlet is not available. The temporary adapter
shall be used only until a correctly grounded outlet is installed. The green

colored rigid ear, lug, or similar part extending from the adapter must be
connected to a permanent ground, such as a correctly grounded outlet
box cover. Whenever the adapter is used, it must be held in place by a

metal screw.

Grounded

Outlet

Grounding Pin

Grounded

Outlet Box

Adapter

Metal

Screw

Tab for

Grounding

Screw

Extension

Use only a 3-wire extension cord that has a 3-blade grounding plug,

Cords

and a 3-slot receptacle that accepts the plug on the product. Verify the

extension cord is not damaged. When using an extension cord, use one
that is heavy enough to carry the current the product draws. For lengths
less than 25 ft., use 18 AWG extension cords. An undersized cord results
in a drop in line voltage, loss of power, and overheating.

5

Service Parts

Inlet Fitting

Handle and

Switch Assembly

Exhaust Fitting

Capacitor

(under handle)

Sight Glass

Oil Fill Plug

Base

Housing Gasket

(not shown)

Part No. Description

556672 Handle and Switch Assembly (Models 15300 & 15500)
556673 Handle and Switch Assembly (Models 15301 &15501)
556674 Oil Drain Fitting
523194 Capacitor (all models)
523195 Oil Fill Plug
523197 Base (all models)
556675 Housing Gasket

(all models)

556676 Exhaust Fitting (all models)
523208 Inlet Fitting Adapter, 3/8" External Flare x 1/2" Internal ACME
525402 Inlet Fitting, 1/4" and 3/8" External Flare
525488 Inlet Fitting Adapter, 3/8" Internal Flare x 1/2" External ACME
557048 Inlet Fitting Adapter, 1/4" Internal Flare x 3/8" External Flare
556677 Power Cord (Models 15300 & 15500)
556678 Power Cord (Models 15301 & 15501)

Oil Drain Fitting

6

Troubleshooting Guide

Your VacuMaster® pump has been designed for dependable use and long

life. If something should go wrong, however, the following guide will help

you get the pump back into service as quickly as possible.

If disassembly of the pump is required, check your warranty. The warranty

may be voided by misuse or customer tampering that results in the pump
being inoperable.

1. Check line voltage. Robinair VacuMaster® pumps are designed to start

Failure
To Start

at +10% line voltage (loaded) at 41
switching between the start and run windings may occur.

1. Verify the oil is not a residual accumulation from spillage, etc.

Oil
Leakage

2. If leakage exists, the module cover gasket or the shaft seal may need to
be replaced. If leakage exists in the area of the oil drain plug, you may

need to reseal the plug using a commercial pipe thread sealer.

1. Conrm the vacuum gauge and all connections are in good condition

Failure
To Pull
A Good
Vacuum

and leak-free. You can conrm leakage by monitoring the vacuum with

a thermistor gauge while applying vacuum pump oil at connections or

suspected leak points. The vacuum will improve briey while the oil is

sealing the leak.

2. Verify the pump oil is clean. A badly contaminated pump may require
several oil ushes. See OIL CHANGE PROCEDURE.

o

F (5° C). At extremes, however,

Note: Use only high vacuum pump oil such as Robinair’s Premium High

Vacuum Pump Oil. Other oils will prevent pull-down to a deep vacuum.

3. Verify the oil is at the correct level. For maximum pump operation, the
oil must be even with the OIL LEVEL line on the sight glass when the
pump is running. See OIL CHANGE PROCEDURE. Do not overll —
operating temperatures will cause the oil to expand, so it will appear at
a higher level than when the pump is not running. To check the oil level,

start the pump with the inlet capped. Check the oil level in the sight
glass. Add oil if necessary.

If these procedures do not correct the problem, contact your nearest

When You
Need Help

Robinair distributor, or call Robinair’s toll-free service line for further
information: 1-800-822-5561 (USA only).

7

Robinair Limited Warranty Statement

Rev. November 1, 2005

This product is warranted to be free from defects in workmanship,
materials, and components for a period of one year from date of purchase.

All parts and labor required to repair defective products covered under the
warranty will be at no charge. The following restrictions apply:

1. The limited warranty applies to the original purchaser only.

2. The warranty applies to the product in normal usage situations only, as
described in the Operating Manual. The product must be serviced and
maintained as specied.

3. If the product fails, it will be repaired or replaced at the option of the

manufacturer.

4. Transportation charges for warranty service will be reimbursed by the

factory upon verication of the warranty claim and submission of a

freight bill for normal ground service.

5. Warranty service claims are subject to authorized inspection for product

defect(s).

6. The manufacturer shall not be responsible for any additional costs

associated with a product failure including, but not limited to, loss of
work time, loss of refrigerant, and unauthorized shipping and/or labor

charges.

7. All warranty service claims must be made within the specied warranty

period. Proof-of-purchase date must be supplied to the manufacturer.

Out of
Warranty

8

This Limited Warranty does

• The product, or product part, is broken by accident.

• The product is misused, tampered with, or modied.

NOT apply if:

VacuMaster® 2-Stage Pump Specications

15300 15500

Voltage 115V / 60 Hz 115V / 60 Hz

Free Air Displacement 3 CFM 5 CFM

Ultimate Vacuum 35 microns 35 microns

Stages 2 2

Motor 1/3 HP 1/3 HP

Intake Ports

Oil Capacity 9.5 oz. 9.5 oz.

Power Cord Length 6 ft. 6 ft.

Dimensions (in.) 13.25 x 5.5 x 9.5 13.25 x 5.5 x 9.5

Net Weight 22 lbs. 24 lbs.

1

/4" & 3/8" Flare,

1

/2" ACME 1/2" ACME

15301 15501

Voltage 220V / 50 Hz 220V / 50 Hz

Free Air Displacement 71 lpm / 3 CFM 118 lpm / 5 CFM

Ultimate Vacuum 35 microns 35 microns

Stages 2 2

Motor 1/3 HP 1/3 HP

Intake Ports

Oil Capacity 280 ml 280 ml

Power Cord Length 1.82 m 1.82 m

Dimensions (mm) 337 x 138 x 245 337 x 138 x 245

Net Weight 10 kg 11 kg

1

/4" & 3/8" Flare

1

/4" & 3/8" Flare,

1

/4" & 3/8" Flare

9

Please register your product at www.robinair.com

Due to ongoing product improvements, we reserve the right to change design,

specications, and materials without notice.

655 Eisenhower Drive
Owatonna, MN 55060 USA
Technical Services: 1-800-822-5561
Fax: [phone]
Customer Service: 1-800-533-6127
Fax: [phone]
Web Site: www.robinair. com

556679 Rev. D, August 5, 2013 © Bosch Automotive Service Solutions LLC