Summary of Contents for Stinger Refrigerant Recovery Unit
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Refrigerant Recovery Unit High Performance x Oilless x Commercial User Manual 2090-0217 Rev. 6 April 2012...
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Congratulations on your purchase of the STINGER high-performance oilless recovery unit. Bacharach has worked hard to make the STINGER the highest performing, most portable, and easiest-to-use recovery unit on the market. We are committed to your complete satisfaction. WARRANTY Bacharach warrants this product for 1 year from the date of purchase indicated on the original sales receipt.
Safety 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. WARNING! This unit is capable of over-pressurizing a DOT recovery cylinder.
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WARNING: Before starting the unit you MUST OPEN the outlet port on the Stinger and open the port to the recovery tank. Read entire operating instruction manual before use. Failure to open the outlet port will cause permanent damage to the unit and void the warranty.
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Learn the application and limitations as well as the specific potential hazards of your equipment. Ground all equipment: Stinger is equipped with a three-pronged grounded power cord. Use the proper extension cord: Keep extension cord length to a minimum.
Use weight (charging) scale: A scale (P/N 2010-0000) must be used to indicate when the recovery tank is 80% full when the STINGER does not have the 80% Shutoff Kit option installed. Avoid dangerous environments: Although the unit can be used outdoors, we do not recommend operation in the rain, or in wet locations.
Descriptions of Features Figure 1. Stinger Front View 2090-0217 Rev 6...
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Inlet Gauge evacuated. Outlet Gauge Displays the outlet/discharge pressure. This valve determines what function the STINGER performs. Purge Valve This valve is UP during recovery operations and DOWN for purging and liquid push-pull operations. Opens or closes the inlet port. Points UP (open) for all...
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Figure 2. Stinger Rear View NOTE: If the “Tank Full” Shutoff Cord option is installed, the STINGER will not operate unless it is connected to a recovery cylinder with a compatible level-float switch. If the recovery cylinder doesn’t have a float switch, a shorting cap must be installed on the shutoff cord.
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This optional accessory (Part Number 2090-0091) optional 80% connects to a DOT recovery cylinder’s overfill sensor. It tank full automatically shuts the STINGER off when the recovery shutoff cord cylinder reaches 80% of its liquid-fill limit. This heavy-duty storage pocket is used to store the...
Make proper hose connections. Connect refrigerant hoses to recovery cylinder, STINGER, and A/C system as shown on page 15. When possible, use a manifold-gauge set to recover refrigerant from both the high- and low- side service ports. This will speed up the recovery rates.
Proceed with the recovery process until the system pressure shows a vacuum. Turn OFF the STINGER for a minimum of 5 minutes; after which, determine the amount of refrigerant remaining in the system. Repeat this step until system pressure is below mandatory EPA levels.
A scale or liquid-sight glass can be used to determine when all the liquid is recovered. The STINGER 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.
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Open both the vapor and liquid valves on the DOT recovery tank. Turn ON the STINGER. The compressor will begin to “pull” vapors from the cylinder and “push” the liquid out of the system and into the recovery cylinder.
Liquid-Pull Recovery / Charging Method The Stinger 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 STINGER can remove lubrication from the compressor, resulting in premature failure.
WHEN RECOVERING VAPOR: If the STINGER sounds like it is overloaded either by slowing down or by making a “knocking” sound, reduce the inlet pressure by closing or “throttling” the inlet valve until the STINGER begins to run normally. WHEN RECOVERING LIQUID:...
3. Turn OFF the STINGER and then turn the outlet valve (red knob right side) to its “CLOSED” position. 4. Close the Vapor and Liquid valves on the DOT recovery tank.
It is recommended that you use this cord for added safety. If your STINGER is not equipped with an 80% tank full shutoff cord, or if you are using a recovery cylinder that does not have a float switch, then you must use a scale to prevent overfilling the cylinder.
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If the 80% tank full shutoff cord is present, but not being used, then a shorting cap must be installed on the shutoff cord in order for the STINGER to operate. Bacharach uses and recommends the Air Conditioning and Refrigeration Institute's (ARI) Guideline K for the safe filling and handling of used refrigerant.
Use an agency approved in-line filter (P/N 07-1700) to prevent contaminants from entering the STINGER. x If the STINGER has the optional 80% tank full shutoff cord installed, connect this cord to the recovery cylinder’s float switch. If the cylinder does not have a float switch, then be sure to install a shorting cap on the shutoff cord;...
Troubleshooting PROBLEM CAUSE ACTION AC power switch is Power cord not attached Attach power cord. ON, but fan, com- No voltage at AC outlet Verify voltage at job site. pressor, and status Circuit breaker has opened Identify cause of breaker LED are all OFF activation, rectify, and reset.
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PROBLEM CAUSE ACTION Compressor starts Function valve is in PURGE Rotate function valve to but cuts out within a position during recovery and RECOVER. few minutes; high pressure switch activates pressure indication Outlet valve is not open and Rotate outlet valve to OPEN on high pressure high pressure switch activates position.
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PROBLEM CAUSE ACTION Recovery process Head pressure too high Reduce tank temperature or too slow change tanks. Throttle gauge manifold System refrigerant iced up valves and discharge valves to reduce pressure differential between LP and HP gauges. Restriction in hoses or manifold gauge set Interrupt recovery process and allow ice to dissipate.
Compressor Parts List See exploded view of compressor in Figure 11. Part No. Item Description 2051-1900 Screw, Machine, M5 x 10MM 2081-0310 Piston Cup Seal Retainer 2043-0020 Piston Cup Seal 2081-0270 Piston 2081-0400 Piston Journal Bearing 2081-0260 Crank 2077-0940 Crankcase Cover Gasket 2081-0390 Shim, 0.002"...
Year conformity is declared: 2009 Product(s): Refrigerant Recovery Machine Model(s): Stinger The undersigned hereby declares that the above referenced products are in conformity with the provisions of the following standard(s) and is in accordance with the following directive(s). Standard(s): General EMC...
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World Headquarters 621 Hunt Valley Circle, New Kensington, Pennsylvania 15068 Phone: 724-334- & -800-736- & -334-5001 -mail: help@MyBacharach.com 2090-0217 Rev 6...
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