Pressure Controls

Part Numbers:

PSW-852, 853, 855,

856 Series

Please read all instructional literature carefully and thoroughly before starting.

GENERAL

Pressure variations are sensed by a bellows, diaphragm or piston sensor which either actuates or de-actuates one, two or three snap- acting switches at a pre-determined set point(s). Set point(s) is adjusted by turning an internal knob and pointer or internal screw

Part I - Installation

Tools Needed

Screwdriver

Hammer

Adjustable wrench

MOUNTING

INSTALL UNIT WHERE SHOCK, VIBRATION AND TEMPERATURE FLUCTUATIONS ARE MINIMAL. ORIENT UNIT SO THAT MOISTURE IS PREVENTED FROM ENTERING THE ENCLOSURE. IF UNIT IS BEING INSTALLED WHERE HEAVY CONDENSATION IS

EXPECTED, VERTICAL MOUNTING (PRESSURE CONNECTION DOWN) IS REQUIRED. DO NOT MOUNT UNIT IN AMBIENT TEMPERATURES EXCEEDING PUBLISHED LIMITS.

PSW-850 Series pressure controls can be mounted in any position, provided the electrical conduit is not facing up. The preferred mounting position is vertical (pressure connection down).

The cast-in knockouts for 3/4” electrical conduit are located on the side and rear of the enclosure. These can easily be knocked out by placing the blade of a screwdriver in the groove and rapping sharply with a hammer.

Mount the unit via the (2) 1/4” screw clearance holes on the enclo- sure. See Dimensions. Units may also be mounted via the NPT pressure connection.

ALWAYS HOLD A WRENCH ON THE PRESSURE HOUS- ING HEX WHEN MOUNTING UNIT. DO NOT TIGHTEN BY TURNING ENCLOSURE. THIS WILL DAMAGE SENSOR

AND WEAKEN SOLDER OR WELDED JOINTS.

WIRING

DISCONNECT ALL SUPPLY CIRCUITS BEFORE WIRING.

ELECTRICAL RATINGS STATED IN LITERATURE AND ON NAMEPLATE SHOULD NEVER BE EXCEEDED. OVER-LOAD ON A SWITCH CAN CAUSE FAILURE ON THE FIRST

CYCLE.

WIRE UNITS ACCORDING TO LOCAL AND NATIONAL ELECTRICAL CODES. MAXIMUM RECOMMENDED WIRE SIZE IS 14 AWG.

Connect conduit to the case and wire directly to the switch terminals according to local and national electrical codes. Bring the wires up to terminals from the rear of the case. (See fig. 1.) If manual reset switch or DPDT options are used, lead wires are supplied, color coded as follows:

 

Switch 1

Switch 2

Common

Violet

Yellow

Normally Open

Blue

Orange

Normally Closed

Black

Red

ALLOW ENOUGH SLACK SO AS NOT TO AFFECT SWITCH MOVEMENT WHEN MAKING SETTING ADJUSTMENTS AND ENSURE THAT THE WIRES ARE NOT TOUCHING THE

COVER WHEN INSTALLED.

NOTE: For larger wire gauges, a one time shift may be experienced or expected due to space limitations within the enclo- sure. Verify setpoint after installation.

NOTE: The middle switch assembly is omitted for dual switch con- trollers. The outer switch assemblies are omitted for single switch controllers. Type PSW-852, 853 controls have internal screw adjust- ments and type PSW-855, 856 have cam assemblies for internal cali- brated adjustments.

Figure 1

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Omega PSW-850 manual Part I Installation, General, Mounting, Wiring, Switch
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PSW-850 specifications

The Omega PSW-850 is a premier power supply unit designed for high-performance computing and intricate electronic applications. Known for its rich feature set and robust engineering, the PSW-850 provides an ideal solution for users seeking reliability coupled with performance.

A standout characteristic of the Omega PSW-850 is its impressive output power of 850 Watts, making it suitable for powering high-end gaming rigs, workstations, and servers. The unit is designed with a fully modular cable system, allowing users to connect only the cables they need. This modularity not only simplifies installation but also promotes better airflow within the chassis by reducing cable clutter.

One of the primary technologies integrated into the PSW-850 is the use of high-quality capacitors. These capacitors are designed to provide superior stability and efficiency, resulting in enhanced longevity for connected devices. Additionally, the power supply complies with 80 PLUS Gold certification, indicating that it operates with at least 90% energy efficiency at typical loads. This efficiency helps lower electricity bills and minimizes heat generation, which is crucial for maintaining optimal operating temperatures.

The PSU incorporates advanced protective features such as over-voltage, under-voltage, over-current, and short-circuit protection. Such safeguards ensure peace of mind for users, protecting sensitive components from potential damage caused by electrical anomalies. The integrated fan technology further enhances cooling capabilities, utilizing a 140mm fan that operates quietly while efficiently dissipating heat.

In terms of design, the Omega PSW-850 features a sleek, modern look that complements contemporary computer builds. With a compact form factor, it fits into a variety of cases while maintaining a strong build quality. The power supply also supports a variety of connections, including multiple PCIe connectors for high-performance graphics cards, SATA, and Molex connectors for other peripherals.

Overall, the Omega PSW-850 is built to satisfy the demands of technology enthusiasts, gamers, and professional users alike. Its combination of advanced features, energy efficiency, and superior reliability make it a top choice in the competitive power supply market. For anyone in need of an efficient and powerful power supply solution, the PSW-850 stands out as an exceptional choice. Its thoughtful engineering and user-friendly design are set to bring performance and stability to any high-powered computer setup.
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