START UP

THESE UNITS REQUIRE R-410A REFRIGERANT AND POLYOL ESTER OIL.

GENERAL:

1.Use separate service equipment to avoid cross contamination of oil and refrigerants.

2.Use recovery equipment rated for R-410A refrigerant.

3.Use manifold gauges rated for R-410A (800 psi/250 psi low).

4.R-410A is a binary blend of HFC-32 and HFC-125.

5.R-410A is nearly azeotropic - similar to R-22 and R-12. Although nearly azeotropic, charge with liquid refrigerant.

6.R-410A operates at 40-70% higher pressure than R-22, and systems designed for R-22 cannot withstand this higher pressure.

7.R-410A has an ozone depletion potential of zero, but must be reclaimed due to its global warming potential.

8.R-410A compressors use Polyol Ester oil.

9.Polyol Ester oil is hygroscopic; it will rapidly absorb moisture and strongly hold this moisture in the oil.

10.A liquid line dryer must be used - even a deep vacuum will not separate moisture from the oil.

11.Limit atmospheric exposure to 15 minutes.

12.If compressor removal is necessary, always plug compressor immediately after removal. Purge with small amount of nitrogen when inserting plugs.

TOPPING OFF SYSTEM CHARGE

If a leak has occurred in the system, Bard Manufacturing recommends reclaiming, evacuating (see criteria above), and charging to the nameplate charge. If done correctly, topping off the system charge can be done without problems.

With R-410A, there are no significant changes in the refrigerant composition during multiple leaks and recharges. R-410A refrigerant is close to being an azeotropic blend (it behaves like a pure compound or single component refrigerant). The remaining refrigerant charge, in the system, may be used after leaks have occurred and then “top-off” the charge by utilizing the pressure charts on the inner control panel cover as a guideline.

REMEMBER: When adding R-410A refrigerant, it must come out of the charging cylinder/tank as a liquid to avoid any fractionation, and to insure optimal system performance. Refer to instructions for the cylinder that is being utilized for proper method of liquid extraction.

WARNING

Failure to conform to these practices could lead to damage, injury or death.

SAFETY PRACTICES:

1.Never mix R-410A with other refrigerants.

2.Use gloves and safety glasses, Polyol Ester oils can be irritating to the skin, and liquid refrigerant will freeze the skin.

3.Never use air and R-410A to leak check; the mixture may become flammable.

4.Do not inhale R-410A – the vapor attacks the nervous system, creating dizziness, loss of coordination and slurred speech. Cardiac irregularities, unconsciousness and ultimate death can result from breathing this concentration.

5.Do not burn R-410A. This decomposition produces hazardous vapors. Evacuate the area if exposed.

6.Use only cylinders rated DOT4BA/4BW 400.

7.Never fill cylinders over 80% of total capacity.

8.Store cylinders in a cool area, out of direct sunlight.

9.Never heat cylinders above 125°F.

10.Never trap liquid R-410A in manifold sets, gauge lines or cylinders. R-410A expands significantly at warmer temperatures. Once a cylinder or line is full of liquid, any further rise in temperature will cause it to burst.

Manual

2100-509E

Page

13 of 17

Page 12 Page 14
Page 13
Image 13
Bard W12A2-A installation instructions Start UP, Topping OFF System Charge, Safety Practices
Page 12 Page 14

W12A2-A specifications

The Bard W12A2-A is a cutting-edge piece of equipment that has gained significant attention in the industrial sector for its innovative design and advanced features. Renowned for its efficiency and reliability, the W12A2-A is an essential tool for various applications, particularly in manufacturing and performance-heavy operations.

One of the standout features of the Bard W12A2-A is its powerful engine, which provides exceptional torque and horsepower, allowing it to operate seamlessly under demanding conditions. This engine is paired with an advanced transmission system that ensures smooth and responsive acceleration, making it a preferred choice for professionals who require precision in their work.

In terms of technology, the Bard W12A2-A integrates state-of-the-art automation systems that enhance productivity and reduce operational costs. The onboard computer system is equipped with real-time monitoring capabilities, allowing users to track performance metrics and conduct diagnostics with ease. This level of intelligence not only assists in preventive maintenance but also optimizes the overall uptime of the machine.

The Bard W12A2-A also incorporates advanced safety features designed to protect operators and prevent accidents. Its robust structural design is complemented by a suite of sensors that continuously monitor the machine's performance, alerting users to any potential hazards before they escalate into significant issues. This focus on safety is critical in high-stakes environments.

Furthermore, the W12A2-A is recognized for its superior build quality, utilizing durable materials that withstand the rigors of industrial use. This ensures longevity and minimizes the need for frequent repairs or replacements, offering excellent value for investment.

Ergonomically designed, the Bard W12A2-A prioritizes user comfort, with an intuitive control panel and customizable settings that cater to a wide range of operational preferences. This thoughtful approach to design enhances the user experience and boosts overall productivity.

Overall, the Bard W12A2-A stands out in the market for its combination of power, advanced technology, safety features, and user-friendly design. Whether used in manufacturing, logistics, or any performance-based industry, the W12A2-A promises to deliver high efficiency and exceptional reliability, making it a formidable asset for any operation seeking to enhance productivity and maintain high standards.
Top Page Image Contents