Section 04

ELECTRICAL POWER

4.10 Power Source Review

Review the power source and the motor rating to be sure they agree in voltage, phase,

and frequency. Serious damage may occur to the motor if it is connected to an improper voltage. All Welch pumps must be grounded. Grounding reduces the risk of electric shock in the event of an electrical short circuit. The plug must be plugged into a properly grounded outlet. Consult your local electrical codes if you have doubts.

4.11 Overload Protection

Motor thermal overload protection is made available by the motor manufacturer as anaid

to minimize motor failure.Overload protection is a standard feature on both 50 and 60 Hz single-phase-motors. The motors have automatic overload protection. Automatic reset protection is designed to reset itself after a predetermined cooling period. If the fault to the drive remains unaltered, the motor will cycle on and off until the fault is corrected.

4.20VACUUMCONNECTIONS All pressure/vacuum pumps come with intake and discharge hose barbs which accept 1/4" ID rubber pressure/vacuum hose. Hose clamps should be used to hold the hose in place. Since all three models operate in the viscous flow regime, the small diameter of the hose will generate minimal conductance loss. For best results, Welch recommends the length of the tubing between the pump and the chamber be kept as small as possible.

4.21VACUUMANDPRESSUREGAUGES All models of pressure/vacuum pumps come with dial gauges mounted on the regulator assemblies. The vacuum gauge gives negative pressure - that is pressure below atmospheric. The reference point for the vacuum gauge is atmospheric pressure.

The pressure gauge gives pressure above atmospheric. The reference point for the pressure gauge is atmospheric pressure.

Please keep in mind that atmospheric pressure tends to vary from day to day. As a result of this variability, the dial vacuum gauge will indicate slightly different maximum vacuum readings from day to day.

Section 05

TRAPS

5.10The need for a Trap The pumps will handle humid air. All wetted aluminum parts are treated for corrosion protection from moisture. All other wetted parts are stainless steel. A plastic trap with a ball check valve is attached to the regulator assembly to prevent water condensate from accidentally being ingested into the pump. If there is a chance liquid may be drawn from the process under evacuation, Welch recommends a liquid trap be placed between the process and the pump. A simple liquid trap is a filtering flask. See figure below.

When a heavy load of water vapor is evolved from the vacuum process, a cold trap is recommended to help prevent damage to the pump mechanism. The cold trap, immersed in a suitable Dewar flask, is installed so that the water vapors may come in contact with the surfaces of the trap and condense. Commonly used refrigerants are liquid nitrogen or dry ice and acetone or alcohol. Dry ice provides sufficient cooling to freeze out most heavy water vapor loads. A variety of cold traps are available from Welch. Please call our customer service department for additional information at (847) 676-8800.

The pump is not recommended for pumping acid, base or organic vapors or gases. Serious damage to the pump will shorten the pump’s service life. In addition, pumping flammable vapors or gases can lead to serious safety hazard leading to fire or explosion.

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Fisher & Paykel 2534C-02, 2546 owner manual Power Source Review
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2546, 2534C-02 specifications

Fisher & Paykel has long been recognized for its innovative kitchen appliances, and the 2534C-02 and 2546 models are excellent examples of this tradition. Designed with precision and an understanding of contemporary cooking needs, these appliances promise to enhance any culinary experience.

The Fisher & Paykel 2534C-02 is a freestanding gas cooker that features a sleek and modern design, making it an attractive addition to any kitchen. It offers a generous cooking capacity with four powerful burners, providing versatility for various cooking tasks, from boiling to sautéing. The burners are equipped with a high-performance design to ensure even heat distribution, allowing chefs to achieve consistent cooking results. One of the main highlights of this model is its intuitive interface, which makes it easy to control temperature settings precisely.

In contrast, the Fisher & Paykel 2546 is an advanced double oven model that caters to both convenience and efficiency. It features a spacious interior, allowing users to cook multiple dishes simultaneously, which is perfect for family gatherings or entertaining guests. The ovens are designed with Smart Oven technology, which includes precise temperature control and a variety of cooking modes, such as baking, roasting, and broiling. This technology ensures even cooking results, eliminating the guesswork often associated with traditional ovens.

Both models emphasize energy efficiency and sustainability, incorporating features designed to minimize energy consumption without compromising performance. The exterior is crafted from durable materials, providing a stylish yet functional aesthetic that complements modern kitchen décor.

Another attractive feature of the Fisher & Paykel 2534C-02 and 2546 is their easy-clean design. The surfaces are engineered to resist smudges and stains, making maintenance a breeze. In addition, the interiors of the ovens boast self-cleaning capabilities, allowing users to spend less time scrubbing and more time enjoying their culinary creations.

In conclusion, Fisher & Paykel's 2534C-02 and 2546 models combine functionality, innovative technology, and aesthetic appeal. They cater to a wide range of cooking needs, making them suitable for both amateur cooks and seasoned chefs alike. With their commitment to quality and performance, Fisher & Paykel continues to set the standard in modern kitchen appliance design.
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