Bacharach Refrigerant Recovery System 3600 Manual de usuario

Refrigerant Recovery System

Model 3600

Part No. 2000-3600

Operation & Maintenance Manual

Instruction 2079-0140

Rev 2 - December 2012

WARNING: Inhalation of high concentrations of refrigerant vapors is harmful and may

cause heart irregularities, unconsciousness, or death. Deliberate inhalation

of refrigerants is extremely dangerous and death can occur without warning.

Vapors reduce oxygen available for breathing and are heavier than air.

Decomposition products are hazardous. Liquid contact may cause frostbite.

All refrigerant containers, equipment, and hoses are under pressure.

CAUTION: Before operating this unit, please read this manual in its entirety. It is

important that you have a thorough understanding of the procedures

outlined in this manual. Failure to follow these procedures could void all

manufacturer warranties.

BEFORE HANDLING REFRIGERANTS, READ THE MATERIAL SAFETY

DATA SHEET FROM THE REFRIGERANT MANUFACTURER.

Refrigerant Recovery System Model 3600

Table of Contents

CHAPTER 1: INTRODUCTION ................................................................................................................................. 3

1.1. OVERVIEW ........................................................................................................................................................3

1.2. SPECIFICATIONS..................................................................................................................................................3

1.3. FEATURES .........................................................................................................................................................4

CHAPTER 2: SAFETY............................................................................................................................................... 5

2.1. GENERAL SAFETY INSTRUCTIONS............................................................................................................................5

2.2. OPERATIONAL SAFETY .........................................................................................................................................6

CHAPTER 3: FEATURES .......................................................................................................................................... 7

3.1. LOCATION AND DESCRIPTION OF UNIT FEATURES......................................................................................................7

3.2. LED DISPLAY .....................................................................................................................................................8

CHAPTER 4: RECOVERY.......................................................................................................................................... 9

4.1. HELPFUL HINTS FOR RECOVERING R-410A..............................................................................................................9

4.2. VAPOR/LIQUID RECOVERY PROCEDURES .................................................................................................................9

4.3. VAPOR RECOVERY HOSE CONNECTION .................................................................................................................11

4.4. LIQUID PUSH-PULL RECOVERY GENERAL INFORMATION ...........................................................................................12

4.5. LIQUID RECOVERY PROCEDURES ..........................................................................................................................13

4.6. LIQUID PUSH-PULL HOSE CONNECTIONS...............................................................................................................14

4.7. PUMP DOWN OPERATIONS ................................................................................................................................15

4.8. DOT RECOVERY CYLINDER SAFETY .......................................................................................................................16

CHAPTER 5: TROUBLESHOOTING......................................................................................................................... 17

CHAPTER 6: ELECTRICAL SCHEMATIC ................................................................................................................... 18

CHAPTER 7: REPLACEMENT PARTS ...................................................................................................................... 19

Model 3600 Refrigerant Recovery System

CHAPTER 1: INTRODUCTION

1.1. Overview

Congratulations on your purchase of the Bacharach Model 3600 high performance oilless recovery

system. Bacharach has worked hard to make the Model 3600 the highest performing, most portable and

easiest to use recovery system on the market. We are committed to your complete satisfaction!

Please note that Bacharach requires that a filter be used on the inlet hose coming from the system being

serviced in order to protect the compressor from particulate.

A standard filter or filter dryer is suggested. The compressor warranty will be voided if it is determined that

a filter was not used during the operation of this equipment.

WARNING: Before starting the 3600 recovery unit, you MUST OPEN the outlet port on the unit

and open the port to the recovery tank. Read the entire operating instruction

manual before use. Failure to open the outlet port will cause permanent damage to

the unit and void the warranty.

WARNING: You must use a DOT recovery cylinder approved for use with R-410A refrigerant.

This recovery system is equipped with a high-pressure shutoff switch set to turn the

unit off at 550 psi. Using any other cylinder may cause the pressure in the recovery

cylinder to exceed the cylinder’s pressure rating.

CAUTION: These instructions are for personnel trained and experienced in the handling of

refrigerants. Unqualified individuals should not attempt to operate this equipment.

Failure to follow proper operating procedures may cause personal injury.

1.2. Specifications

Category Description

Model Model 3600

Description Portable Commercial Oilless Recovery System

Refrigerants R12, R-22, R-134a, R-500, R-502, R-410AHP/MP Blends

Power Source 120V AC 60 Hz

Wattage/Amperes 800 W / 8.0 A max

Compressor ½ HP High Performance Oilless

High Pressure Shutoff 550 psi

Dimensions (H x W x D) 12.0" x 13" x 7.5"

Weight 35 Lbs.

Refrigerant Recovery System Model 3600

Refrigerant Recovery Rates Certified per AHRI 740-95 & 740-98

Refrigerant Liquid Rate Liquid Push-Pull Rate Vapor Rate

R-22 4.96 lb/min

2.25 kg/min 13.01 lb/min

5.90 kg/min 0.37 lb/min

0.17 kg/min

R-134A 3.86 lb/min

1.75 kg/min 11.84 lb/min

5.37 kg/min 0.29 lb/min

0.13 kg/min

R-410A 3.31 lb/min

1.50 kg/min 15.70 lb/min

7.12 kg/min 0.42 lb/min

0.19 kg/min

1.3. Features

•Designed specifically for the new R-410A blend that has much higher vapor pressures.

•New oilless compressor technology that is QUIETER, FASTER, AND LIGHTER than current

products on the market.

•When used properly, tolerates liquid during vapor recovery operations with no compressor

damage.

•Extremely easy to operate.

•Extra large condensing ensures high recovery rates even on the hottest days.

•Self-purging valve completely purges the condenser and tubing, eliminating cross contamination

when switching between refrigerants.

•Solid state LED status display keeps the operator informed of the operational status of the unit.

The following situations are monitored: High Pressure Shutoff, Recovery Cylinder Full Shutoff (If

option is installed), Automatic Vacuum Shutoff, and System Operating.

•Suction and discharge gauges eliminate the need for a manifold gauge set.

•Inlet and outlet ball valves provide full refrigerant flow and positive shutoff.

•Automatic vacuum shutoff at 13” HG vacuum.

•Automatic high-pressure shutoff at 550 psi.

•Rugged heavy-duty steel construction with epoxy powder coating for long life.

•Options include: Deluxe carrying case to protect the 3600 from damage during transport,

Automatic 80% tank full shutoff.

Specifications are subject to change without notice.

Model 3600 Refrigerant Recovery System

CHAPTER 2: SAFETY

2.1. General Safety Instructions

1. KNOW YOUR EQUIPMENT

Read and understand the operation manual and labels affixed to the unit. Learn its application and

limitations as well as the specific potential hazards of your equipment.

2. GROUND ALL EQUIPMENT

This unit is equipped with an approved three pronged grounded power cord and plug. The green wire

is the ground wire and should never be connected to a live terminal.

3. USE THE PROPER EXTENSION CORD

Use the following guide for choosing the proper extension cord:

16 gauge cord- maximum length 25 feet

14 gauge cord- maximum length 50 feet

12 gauge cord- maximum length 100 feet

4. AVOID DANGEROUS ENVIRONMENTS

Do not use this unit in damp or wet locations or expose it to rain. Secure unit when working above

floor level. This equipment should be used in a location with mechanical ventilation that provides at

least four air changes per hour or the equipment should be located at least 18 inches above the floor.

This equipment should not be used in the vicinity of spilled or open containers of flammable materials.

5. DISCONNECT UNIT BEFORE SERVICING

Electrical shock hazard may be present when the unit is disassembled.

6. AVOID ACCIDENTAL STARTING

Make sure the system switch is in the OFF position before connecting electrical devices.

7. REPAIR DAMAGED PARTS

Do not operate the unit with a defective part. Repair unit to proper operating conditions.

8. USE RECOMMENDED ACCESSORIES

Follow the instructions that accompany all accessories. Improper use of accessories may damage

the equipment or create a hazard.

9. USE CAUTION WHEN CONNECTING OR DISCONNECTING HOSES

Improper usage may result in refrigerant burns (frostbite). If a significant refrigerant leak occurs,

proceed immediately to a well ventilated area.

10. USE THE PROPER RECOVERY CYLINDER RATED FOR USE WITH R-410A

WARNING: You must use the proper DOT approved recovery cylinder with the Model 3600. This

recovery system is equipped with a high-pressure shutoff switch set to turn the unit off at 550 psi.

Using any other cylinder may cause the pressure in the recovery cylinder to exceed the cylinder’s

pressure rating.

Refrigerant Recovery System Model 3600

2.2. Operational Safety

WARNING: Inhalation of high concentrations of refrigerant vapors is harmful and may cause heart

irregularities, unconsciousness, or death. Deliberate inhalation of refrigerants is

extremely dangerous and death may occur without warning. Vapor reduces oxygen

available for breathing and is heavier than air. Decomposition products are

hazardous. Liquid contact can cause frostbite. All refrigerant containers, equipment

and hoses are under high pressure.

•Avoid breathing high concentrations of vapors.

•Use with sufficient ventilation to keep operator exposure below recommended limits, especially in

enclosed and low lying areas.

•Avoid contact of liquid with eyes and prolonged skin exposure.

•Wear safety goggles and protective gloves.

•Do not apply open flame or heat unit above 125°F.

•Do not allow refrigerants to contact open flame. Decomposition will occur.

FIRST AID: If high concentrations of refrigerant vapors are inhaled, immediately remove person(s) to

fresh air. Keep calm. If not breathing, give artificial respiration. If breathing is difficult, give

oxygen. Call a doctor. Do not give epinephrine or similar drugs.

EYE: In case of liquid contact, immediately flush eye with water.

Seek medical attention.

SKIN: Flush with water. Treat for frostbite by gently warming the affected area.

CAUTION: All refrigerant hoses, recovery tanks, refrigerant lines, the unit, and other vessels containing

refrigerants should be handled at all times as if under high pressure.

Model 3600 Refrigerant Recovery System

CHAPTER 3: FEATURES

3.1. Location and Description of Unit Features

# Component Description

1 Purge Ball

Valve This valve determines

what function the Model

3600 performs. This

valve is UP during

recovery operations

and DOWN for purging

and liquid push-pull

operations.

2 Inlet Port

Ball Valve

Opens or closes the

inlet port. It is pointing

UP (open) for all

recovery operations

and points DOWN for

purging operations.

This valve is also used

to throttle back the

liquid intake when a

knocking sound is

heard.

3 LED Status

Display See the description on

the following page.

4 System

Switch When in the ON position, this switch starts the recovery operation by turning the

compressor on.

5 Outlet Port

Ball Valve Opens or closes the outlet port. It points DOWN when it is open and to the left

when CLOSED.

6 Inlet Port Refrigerant hose connection for incoming refrigerant vapors.

7 Outlet Port Refrigerant hose connection for outgoing refrigerant.

8 Outlet

Pressure

Gauge

Displays the outlet/discharge pressure.

9 Inlet

Pressure

Gauge

Displays the inlet/suction pressure of the system being evacuated.

Umbilical

Cord -

Optional

Accessory

(Not shown)

This optional accessory connects to the recovery cylinder overfill sensor and

automatically shuts the unit off when the recovery cylinder reaches the 80% liquid

fill limit.

NOTE: If the Model 3600 is equipped with an 80% shutoff cord, it will not work

unless it is not connected to a DOT recovery cylinder with a compatible level float

switch. If the recovery cylinder does not have a float switch, a shorting cap must

be installed in order to operate the system.

Compressor

Circuit

Breaker (Not

shown)

Protects against high amperage. Located on the left side of the machine.

Refrigerant Recovery System Model 3600

3.2. LED Display

LED Meaning Explanation

Green Normal Operation Indicates that the power switch is ON and the compressor is

running.

Red High Pressure

Condition Indicates that there is a high pressure condition that must be

corrected. The internal high pressure switch activates at 550 psi.

Red Tank Full Indicates that the recovery cylinder is full (if the Automatic 80%

Tank Full Shutoff Option is installed).

Model 3600 Refrigerant Recovery System

CHAPTER 4: RECOVERY

4.1. Helpful Hints for Recovering R-410A

R-410A has been designated by the EPA as a “very-high-pressure” refrigerant. Because of its higher

vapor pressure, recovering R-410A has some unique challenges. The higher vapor pressure requires

more work from the compressor, resulting in higher temperatures and increased wear on moving

compressor parts.

In order to reduce the affects of these conditions, Bacharach recommends the following:

•Whenever possible, cool your recovery tank with ice or water. This keeps the compressor

discharge pressures lower, which will result in faster recovery rates and longer compressor

life.

•Avoid recovering large amounts of R-410A at one time. Allow the recovery unit and cylinder

to cool before starting the next recovery job.

•Always purge the machine completely when switching from R410a and back to prevent cross

contamination.

Following these simple hints will improve both recovery performance and compressor life.

4.2. Vapor/Liquid Recovery Procedures

Step Description

1 Turn off all electrical or mechanical power to the refrigerant device to be evacuated.

2 Make proper hose connections: Connect refrigerant hoses to recovery cylinder, the unit,

and A/C system as shown in Figure 1. NOTE: You must use an external filter drier in the

suction line in order to meet the conditions of the unit warranty. Caution: If the 80% shutoff

cord is not used, a scale must be used to monitor the refrigerant level in the recovery

cylinder.

NOTE: Although the 3600 was designed to handle liquid slugging, pumping large amounts of

liquid over extended periods of time will reduce the life of the compressor. If large amounts of

liquid are present, it is recommended that you use the liquid push - pull method of recovery

prior to vapor recovery operations. (See Figures 3 & 4).

3 Place the inlet and purge ball valves in the “CLOSED” position and the outlet valve is in

the “OPEN” position. Open the DOT recovery tank liquid valve. (See Figure 2).

4 Turn the system switch to the “ON” position. The LED status display will be green.

5 Regulate the inlet port ball valve when liquid refrigerant is present.

WARNING: A “knocking” sound coming from the compressor indicates too much liquid is

entering the compressor. The inlet ball valve must be regulated as shown in the

shaded region until this knocking sound stops, otherwise compressor damage

could occur. Pumping liquid when the compressor is knocking will damage the

compressor and will reduce the compressor life and will void the compressor

warranty.

Refrigerant Recovery System Model 3600

Step Description

6 Monitor the LED status display. The unit will shut off automatically when the proper vacuum

level is achieved and the status display LED will turn off.

LED Description

Green

Indicates that the power switch is ON and the compressor is running.

If the green LED is off, this indicates that the unit has shut down because

the system being evacuated has reached 13" HG. (the evacuation is

complete). Check the suction pressure to verify that the system being

evacuated is down to at least 13" HG vacuum. Turn the system switch

to the OFF position. Wait 5 minutes. If the inlet pressure rises above 0

psig. Repeat steps 3-6. If the inlet pressure remains below 0 psig, close

all valves and disconnect the hose from the A/C system.

NOTE: A small amount of inlet pressure may be needed to reset the

vacuum switch, this is normal.

Red (a) Indicates that there is a high-pressure condition that must be

corrected. Check for restrictions or a full recovery tank. Correct

the problem and turn the system switch OFF to reset the system.

Repeat steps 3-6.

(b) Indicates that the recovery tank is full (if the 80% automatic shutoff

option is installed). Change the recovery tank and repeat steps

3-6.

7 Purge the system by positioning the inlet and purge ball valve in the “PURGE” position

(both pointing DOWN). This should be done with the unit off. If the valves are turned while

the unit is running, the system may shut off either on high-pressure or vacuum. If the unit is

manually or automatically turned off before the evacuation is complete, repeat steps 3-7.

NOTE: If the circuit breaker trips, wait 5 seconds, reset circuit breaker and go to step 3. If

the compressor thermal overload trips, wait 16 to 30 minutes before restarting.

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