Bacharach ECO-2020 User manual

HighPerformance •Oilless •Residential •LightCommercial
Product Leadership •Training •Service •Reliability
User Manual
2020-9000 Rev. 0
September 2013
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Refrigerant Recovery Unit
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WARRANTY
Bacharach, Inc. (Bacharach) warrants to the buyer that this product will be free from
material defects, free from manufacturing defects, and will conform substantially to
Bacharach’s applicable specifications at the time of delivery.
Bacharach’s liability and the buyer’s remedy under this warranty are limited to the
repair or replacement, at Bacharach’s option, of this product or parts thereof returned
with a Return Material Authorization (RMA) to Bacharach and shown to Bacharach’s
reasonable satisfaction to have been defective; provided that written notice of the
defect is given by buyer to Bacharach within one (1) year after the date of purchase of
this Product from an authorized Bacharach distributor, as indicated on the original sales
receipt. The warranty excludes damage to the unit caused by misuse or mishandling.
Such abuse, as determined by Bacharach, will void the warranty, and the customer can
decide to have the unit repaired at current repair rates, replaced at current cost, or
returned (postage paid by customer). If you have any questions, please contact our
Customer Service Department at 800-736-4666 or email them at
[email protected].
Bacharach warrants to the buyer that Bacharach will convey good title to this product.
Bacharach’s liability and the buyer’s remedy under this warranty of title are limited to:
the removal of any title defects or, at the election of Bacharach, the replacement of this
product or parts thereof that are defective in title.
The foregoing warranty is exclusive and is given and accepted in lieu of (I) any and all
other warranties, express or implied, including without limitation the implied warranties
of merchantability and fitness for a particular purpose: and (II) any obligation, liability,
right, claim or remedy in contract or tort, whether or not arising from Bacharach’s
negligence, actual or implied. The remedies of the buyer shall be limited to those
provided herein to the exclusion of any and all other remedies including, without
limitation incidental or consequential damages. No agreement varying or extending the
foregoing warranty, remedies or this limitation will be binding upon Bacharach unless in
writing and signed by a duly authorized officer of Bacharach.
Copyright © 2013, Bacharach, Inc.
All rights reserved.
BACHARACHis a registered trademark of Bacharach, Inc. ECO-2020and the stylized
ECO-2020logo are trademarks of Bacharach, Inc. All other trademarks, trade names,
service marks and logos referenced herein belong to their respective owners.
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Table of Contents
SECTION 1. INTRODUCTION......................................................................... 4
1.1. Safety (General Prerequisites) .................................................................. 4
1.2. Safety (Proper Surroundings).................................................................... 5
1.3. Safety (Proper Setup) ................................................................................ 5
1.4. Safety (Proper Operations) ....................................................................... 6
1.5. Specifications ............................................................................................ 7
1.6. Components .............................................................................................. 8
SECTION 2. OPERATION ............................................................................. 12
2.1. Overview ................................................................................................. 12
2.2. High Pressure Shut-Off Feature............................................................... 13
2.3. Low Pressure Shut Off Feature................................................................ 13
2.4. 80% Shut-Off Feature.............................................................................. 13
2.5. Recovery Mode (Liquid or Vapor) ........................................................... 13
2.6. Purge Mode............................................................................................. 16
2.7. Liquid Push/Pull Recovery Mode ............................................................ 16
2.8. Recovery Tips .......................................................................................... 19
2.9. Resuming an Interrupted Recovery ........................................................ 19
SECTION 3. MAINTENANCE AND TROUBLESHOOTING ............................... 20
3.1. Troubleshooting ...................................................................................... 20
3.2. Exploded Drawing Showing Spare Parts.................................................. 21
3.3. Accessories.............................................................................................. 23
3.4. Wiring Diagram ....................................................................................... 24
SECTION 4. DECLARATION OF CONFORMITY.............................................. 27
List of Figures
Figure 1. ECO-2020 (Front View Showing Control Knob Operation)................. 8
Figure 2. ECO-2020 (Front Panel and Gauge Details) ....................................... 9
Figure 3. Shoulder Strap (Showing Connecting Points) .................................. 10
Figure 4. Filter and 4-Inch Hose ...................................................................... 10
Figure 5. Optional 80% Shut-off Cable............................................................ 11
Figure 6. Power Connector, Example Power Cord, and Sample Power
Labels ............................................................................................... 11
Figure 7. Recovery Configuration.................................................................... 15
Figure 8. Liquid Push/Pull Configuration ........................................................ 18
Figure 9. Parts Diagram................................................................................... 21
Figure 10. Wiring Diagram ................................................................................ 24
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Section 1. Introduction
1.1. Safety (General Prerequisites)
KNOW YOUR EQUIPMENT! 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. Also,
read and understand the labels affixed to the unit. Learn the
application and limitations as well as the specific potential hazards of
your equipment.
READ THE MSDS (material safety data sheet) from the refrigerant
manufacturer before handling refrigerants.
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.
COMBUSTIBLE/FLAMMABLE GAS WARNING!For your safety, DO NOT
use this device to recover refrigerants which are rated as
combustible/flammable gases (e.g., ASHRAE -
A2 or A3 rated
refrigerants).
CAUTION! Wear safety goggles and protective gloves. Avoid eye
contact and prolonged skin exposure to liquid refrigerant, as contact
may cause frostbite.
CAUTION!Avoid breathing high concentrations of refrigerant vapors.
Inhalation of high concentrations is harmful and may cause heart
irregularities, unconsciousness, or death.
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1.2. Safety (Proper Surroundings)
AVOID DANGEROUS ENVIRONMENTS! Although the unit can be used
outdoors, do not operate in the rain or in wet locations. Secure the unit
when working above floor level. This equipment should not be used in
the vicinity of spilled or open containers of flammable materials.
HAZARDOUS AREA WARNING!This instrument has not been designed
to be intrinsically safe for use in areas classified as hazardous locations.
DO NOT use it in locations classified as hazardous.
VENTILATION REQUIREMENTS!This equipment should be used in a
location that is thoroughly ventilated (e.g., outdoors). For indoor use,
mechanical ventilation must provide at least 4 air changes per hour, or
the equipment should be located at least 18" above the floor.
1.3. Safety (Proper Setup)
CAUTION! Make sure the power switch is in the OFF position before
plugging this equipment into an AC power source.
GROUND ALL EQUIPMENT!The ECO-2020 is equipped with a three-
pronged grounded power cord.
USE AN APPROPRIATE EXTENSION CORD! Keep extension cord length
to a minimum. It should be a minimum of 14 AWG (2.0 mm2) and no
longer than 25 feet (7.5 m) to minimize the possibility of damage to the
compressor.
CAUTION!All refrigerant hoses, recovery tanks, refrigerant lines, the
ECO-
2020 unit, and other vessels containing refrigerants should be
handled at all times as if under high pressure.
WARNING!Before starting the unit you MUST OPEN the port to the
recovery tank. Failure to open the port will cause permanent damage
to the ECO-2020 and void the warranty.
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1.4. Safety (Proper Operations)
WARNING! Only cylinders rated at 400 psi or greater and certified for
R410A should be used to recover R410A. Failure to use the proper
cylinder can be extremely dangerous.
USE RECOMMENDED ACCESSORIES! Follow the instructions that
accompany all accessories. Improper use of accessories may damage
the equipment or create a hazard.
USE WEIGHT (CHARGING) SCALE!When the ECO-2020 does not have
the 80% Shut-Off Kit option installed,ascale (P/N 2010-0000 or similar)
must be used to indicate when the recovery tank is 80% full (to prevent
overfilling).
WARNING! The input pressure of the ECO-2020 must not exceed 26
bars (337 psi).
WARNING! The ECO-2020 must be positioned upright on a level
surface, otherwise vibration, noise, and/or abrasion may occur.
WARNING! Do not block the ventilation openings of the ECO-2020.
WARNING! If the internal circuit breaker trips, wait at least 5 minutes
before resetting.
REPAIR DAMAGED PARTS!Do not operate the unit with a defective
part. Repair unit to proper operating conditions.
WARNING! Unplug unit before servicing; otherwise, an electrical shock
hazard will be present when the unit is disassembled.
IMPORTANT! Periodically check the filter screen (located inside the
brass fitting of the inlet port) before using and clean if necessary.
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1.5. Specifications
Item Description
Compressor Oilless, air-cooled, twin cylinder
Motor 1 HP (1450 rpm @ 50 Hz; 1750 rpm @ 60 Hz)
Power and
Current Draw
110-120 VAC/60 Hz 10 A max
100 VAC/50-60 Hz 10 A max
220-240 VAC/50-60 Hz 5A max
High Pressure
Shut-Off
38.5 bar (3850 kPa, 558 psi)
Operating
Temperature
32°to 104°F (0°to 40°C)
Dimensions 16.13″×10.25″×13.75″(410 mm ×260 mm ×350 mm)
Weight 28.5 lbs (12.9 kg)
Supported
Refrigerants
AHRI
740-98
Cat III: R12, R134A, R401C, R406A, R500
Cat IV: R22, R401A, R401B, R402B, R407C,
R407D, R408A, R409A, R411A,
R411B, R412A, R502, R509
Cat V:
R402A, R404A, R407A, R407B,
R410A, R507
Contact factory for other supported refrigerants.
WARNING! Never use the ECO-2020 to pump
anything flammable, explosive, or corrosive.
This equipment has been certified by AHRI to meet the EPA's Clean Air Act
minimum requirements for recovery equipment as defined in AHRI Standard
740-1998. For refrigerant recovery rates, refer to AHRI’s Certified Refrigerant
Recovery/ Recycling Equipment Directory located at the following web URL.
http://www.ahridirectory.org/ahridirectory/pages/rrr/RRREDirectory.pdf
For additional information contact Bacharach, Inc.
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1.6. Components
Figure 1. ECO-2020 (Front View Showing Control Knob Operation)
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Figure 2. ECO-2020 (Front Panel and Gauge Details)
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Figure 3. Shoulder Strap (Showing Connecting Points)
Figure 4. Filter and 4-Inch Hose
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Figure 5. Optional 80% Shut-off Cable
Figure 6. Power Connector, Example Power Cord, and Sample Power Labels
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Section 2. Operation
2.1. Overview
IMPORTANT: Do not mix different refrigerants together in one tank.
IMPORTANT: Before recovering refrigerant, the recovery tank
should achieve a vacuum level of 29.6 in Hg (75 cm Hg) to purge
non-condensable gases. Tanks are typically filled with nitrogen when
manufactured in the factory. This nitrogen must be evacuated
before the first use.
IMPORTANT: The power switch must be OFF before operation.
IMPORTANT: A in-line filter should always be used and should be
replaced frequently. Each type of refrigerant must have its own
filter. For optimal results, use only Bacharach replacement filters.
IMPORTANT: In order to gain maximum recovery speed, a hose with
inner diameter larger than 3/16” (5 mm) is recommended and the
hose should be shorter than 5’ (1.5 m).
IMPORTANT: For
recovering large amounts of liquid, use the
Push/Pull configuration.
IMPORTANT: After recovering, make sure there is no refrigerant left
in the unit. Refer to the Purge Operation section. Liquid refrigerant
remaining in the unit may expand and destroy components.
IMPORTANT: If the unit is to be stored or remain unused for any
length of time, completely evacuate
any residual refrigerant and
purge the unit with dry nitrogen.
IMPORTANT: The intake port is equipped with a filter screen. Clean
it before every use to maintain performance.
NOTE: The low pressure gauge shows the pressure of the intake port
of the compressor. The high pressure gauge shows the pressure of
the outlet port of the recovery unit.
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IMPORTANT: After use, turn the knob to the OFF position (to close
inlet/outlet valves).Input and output fittings should be covered
with protective caps when the unit is not in operation. Moisture in
the air is harmful to the recovery process and will shorten the
lifespan of the unit.
2.2. High Pressure Shut-Off Feature
The ECO-2020 has an internal high-pressure shut-off switch. If the pressure
inside the system rises above the rated shut-off pressure (see specifications),
the compressor will automatically shut off and the red high pressure alarm light
will turn on. In the event the switch is activated, the output gauge should
indicate < 435 psi (30 bars) to reset the switch.
2.3. Low Pressure Shut Off Feature
The unit has an internal low-pressure shut-off switch. If the pressure inside the
system is lower than -14 in Hg (-35.5 cm Hg) for approximately 20 seconds, the
unit will automatically shut off and the green low-pressure alarm light turns on.
2.4. 80% Shut-Off Feature
This unit can be used with a recovery tank’s float level sensor. Connect the
recovery unit and the tank with the 80% shut-off cable. If the liquid refrigerant
reaches 80% capacity of the tank, the recovery unit will automatically shut off
and the red 80% shut-off alarm light turns on. Before restarting the
compressor, be sure to install a new (empty) tank.
IMPORTANT: If the refrigerant tank has no float level sensor,
remove the 80% shut-off cable from the unit. Otherwise, the
recovery unit will not start.
2.5. Recovery Mode (Liquid or Vapor)
The ECO-2020 can be used for pumping virgin refrigerant on an intermittent
basis. Unlike recovered refrigerant, virgin refrigerant does not contain oil.
CAUTION: Routinely pumping virgin refrigerant through the ECO-2020
can remove lubrication from the compressor, resulting in premature
failure.
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ATTENTION: Use an in-line filter when recovering liquid. Contaminants
(particularly from the bottom of recovery cylinders) can enter the ECO-
2020 and become lodged in the valve seats causing damage and
resulting in leaks. We recommend using Bacharach in-
line filter
P/N 2020-0001 for optimum recovery speed.
IMPORTANT: Make all hose connections as shown in Figure 7.
Ensure that all connections are correct and secure.
IMPORTANT: Ensure all valves are CLOSED and ensure the filter
screen is clean.
Step Description (Recovery Mode – Liquid or Vapor)
1 Switch off power to the refrigerant equipment and connect power
to the ECO-2020.
2 Turn the control knob to the START position.
3 Open the vapor and/or liquid valves of the refrigerant equipment.
4 Open the vapor valve of the recovery tank.
5 Turn on the power switch.
6 Press the start button.
7 Slowly turn the control knob to the RECOVER position.
8 When recovery is finished, the low pressure switch will activate, the
motor will shut off, and the green “Complete” LED will come on.
9 Purge the unit (refer to section 2.6 on page 16).
IMPORTANT: If compressor knocking occurs when the control knob
is in the RECOVER position, slowly turn the control knob toward the
START position until the knocking stops.
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Figure 7. Recovery Configuration
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2.6. Purge Mode
IMPORTANT:
The unit must be purged after each use. Liquid
refrigerant remaining in the unit may expand,
damage the
components, and pollute the environment.
Step Description (Purge Mode)
1 Note that the unit stops automatically after recovery is complete.
2 Turn the control knob to the PURGE position. The motor will
automatically restart. When purging is finished, the low pressure
switch will activate, the motor will shut off, and the green
“Complete” LED will come on.
3 Turn off the power switch.
4 Close the valves of the hoses, recovery tank, etc.
5 Disconnect all hoses.
6 Turn the control knob to the OFF position.
2.7. Liquid Push/Pull Recovery Mode
If any of the following conditions are true in the system being evacuated, the
liquid push-pull method may not be practical and a normal liquid/vapor
recovery should be performed.
•The equipment contains less than 20 lbs (9.1 kg) of refrigerant.
•The equipment is a heat pump or other system with refrigerant flow
that would prevent you from isolating the liquid.
•Equipment has an accumulator between the service ports used in the
liquid recovery process.
•Liquid refrigerant migration has occurred and the location of the liquid
is unknown.
•The refrigerant tubing design on the equipment does not allow for a
solid column of liquid refrigerant to be formed.
IMPORTANT: If the 80% shut-off cord is not used, then use a scale
(P/N 2010-0000) to monitor the refrigerant level in the recovery
cylinder in order to prevent overfilling.
IMPORTANT: Ensure all valves are CLOSED.
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IMPORTANT: Make all hose connections as shown in Figure 8.
Ensure that all connections are correct and secure.
Step Description (Liquid Push/Pull Recovery Mode)
1 Switch off power to the refrigerant equipment and connect power
to the ECO-2020.
2 Turn the control knob to the START position.
3 Open the vapor and liquid valves of the refrigerant equipment.
4 Open the vapor and liquid valves of the recovery tank.
5 Turn on the power switch.
6 Press the start button.
7 Slowly turn the control knob to the RECOVER position.
8 Turn the control knob to the PURGE position. (Refer to Purge Mode
in section 2.6 on page 16.)
9 Turn off the power switch after purging is complete.
10 Close the vapor and liquid valves of the refrigerant equipment.
11 Close the vapor and liquid valves of the recovery tank.
12 Turn the control knob to the OFF position.
13 Connect the hoses again according to the Recovery Mode section
2.5 on page 13 and recover the vapor from
the refrigerant
equipment.
IMPORTANT: A scale or liquid-sight glass can be used to determine
when all the liquid is recovered. The ECO-2020 will not pull a vacuum
using the liquid push-pull recovery operation. To finish the recovery
operation, you must perform vapor recovery operations as described
on page 13.
IMPORTANT: When the scale reading remains unchang
ed or
changes very slowly, the liquid recovery portion of push/pull mode is
finished, and you are ready to perform the vapor recovery portion.
WARNING: If the scale shows that the refrigerant tank reaches 80%
capacity, turn off power and close the valves of the tank. Replace
the full tank with an empty tank (under vacuum) and resume where
you left off.
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Figure 8. Liquid Push/Pull Configuration
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2.8. Recovery Tips
•Use the shortest hoses possible. Long hoses increase the recovery time.
Remove all restrictions in the hoses. Hoses with ball valves at the ends are
better than hoses that are self-sealing.
•When possible, temporarily remove Shrader core valves (if used) from the
service ports prior to the recovery process, as these valves significantly
restrict recovery flow and extend recovery time. Be sure to use a Shrader
core remover/installer tool (designed for use in pressurized systems) to
prevent the illegal loss of refrigerant into the atmosphere.
•Always identify the refrigerant you are recovering. This will minimize cross
contamination and help you plan for the amount of refrigerant you will be
recovering.
•Pump liquid out of the system first, and then recover the remaining vapors.
This will significantly speed up recovery rates.
•With large amounts of refrigerant, use the liquid push-pull recovery
method. This method is faster than recovering liquid directly. Refer to the
liquid push-pull instructions.
•When possible, recover from both the high and low side service ports on
the refrigeration system. This will speed up the recovery rate.
•Use an in-line filter (P/N 2020-0001) to prevent contaminants from
entering the ECO-2020.
•The use of connection hoses with ball valves can help to minimize
refrigerant loss.
NOTE: Using a manifold gauge set is not required.
2.9. Resuming an Interrupted Recovery
Step Description (Resuming an Interrupted Recovery)
1
Resolve the issue that caused the interruption (e.g., breaker, high
pressure switch, loss of power, etc.).
2 Turn the control knob to the START position.
3 Press the START button.
4 Slowly rotate the control knob to the RECOVERY position to resume
recovery.
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Section 3. Maintenance and Troubleshooting
3.1. Troubleshooting
Fault Possible Cause(s) Solution(s)
Compressor
won’t start
High pressure shut off
(Red alarm light)
Lower pressure below 435 psi
(30 bars)
Motor failure or other
component damage.
Replace the components.
Factory service is required.
80% shut-off cable is
connected to unit, but
not to recovery cylinder
Connect to recovery cylinder or
remove from unit.
Low recovery
speed
Recovery tank pressure is
too high.
Cooling down the tank can
help to reduce the pressure.
The piston ring of the
compressor is damaged.
Replace components.
Factory service is required.
Dirty in-line filter or inlet
filter screen
Clean/replace inlet filter
screen. Replace in-line filter.
Unit doesn’t
pull a
vacuum
Loose hoses. Tighten the hose connections.
Leakage in the unit.
Replace components.
Factory service is required.
Compressor
starts, but
stops within
a few
moments
High pressure shut off
due to wrong operation,
such as outlet valve not
open, or recovery tank
valve not open.
Carefully review the operation
manual and follow the
instructions while operating.
Motor thermal protector
shuts off.
Compressor will restart
automatically.
Circuit breaker shuts off.
Wait 5 minutes, reset the
circuit breaker, then restart.
80% shut-off protection
(red alarm light on).
Replace full recovery tank with
an empty recovery tank.
Recovery is complete.
Unit is under low
pressure protection
(green alarm light on).
Refer to the purge section.
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