Single Point Power Panels (SPPP) with phase and voltage monitoring are designed to shield sensitive electrical equipment from power quality issues like:

• Under/Over Voltage
• Phase imbalances
• Phase loss
• Phase reversal
• SPPP with integral phase & voltage monitoring is vital for ensuring reliable operation for your VRV system.

Phase & voltage monitors are essential components of an SPPP, utilizing advanced circuits to measure voltage levels and phase relationships. These monitors continuously assess power supply conditions, detecting deviations from predefined thresholds that could damage equipment. When an anomaly is identified, an alarm is triggered, interrupting a power contactor coil. This opens the contactor to disconnect power from the VRV equipment, thereby preventing damage and ensuring safety.

Under/Over Voltage: When Voltage Supplied to the VRV System is not Within Normal Operating Range. (Typical +/- 15% for 208-230V or +/- 10% for 460V)

Common Causes:

• Lightning Strikes
• Faulty Wiring
• Overloaded Electrical Systems
• Power Element Failure
• Faulty Voltage Regulator
• Generator Issues

Phase Loss: When one phase of a three-phased circuit is lost.

Phase Reversal Issues: When the phase sequence is out of order on a three-phase system.

Common Causes:

• Installation or Maintenance errors
• Issues with the feeder equipment

Phase Imbalance: Shifting between line-to-line voltages are not equal. (Typical +/- 2% for VRV)

Common Causes:

• Unbalanced load in the system
• Unstable utility supply

Phase/Voltage Monitors are crucial for dealing with VRV systems. These devices continuously monitor the power supply and:

• Prevent Costly Shutdowns: Reduce downtime and repair costs by preventing equipment and control board damage.
• Provide Early Warnings: Alerts of deviation allow for troubleshooting to be proactive rather than waiting for a system failure
• Visual Indicators: Monitors include LED indicators and digital display with timestamped fault memory.

Quick Tips for Using Varitec Solutions’ SPPP

• Always Monitor Phase Quality: Use SPPP monitors to verify consistent voltage and proper phase alignment
• Leverage LED Indicators: Make it a habit to inspect the visual LED indicators during service checks to quickly identify if there’s a potential power quality issue

Varitec Solutions specializes in delivering engineered HVAC solutions that need reliable power management tools. From custom homes to medical office building applications, Varitec helps streamline troubleshooting by utilizing SPPP with integrated Phase & Voltage Monitor protection designed specifically for VRV installations. Our UL508A certified panel shop ensures every panel meets rigorous safety and quality standards required for industrial control panels.

About Varitec Solutions

Varitec, a Member of Daikin Group, is a leader in the engineering, development and installation of large-scale, energy-efficient HVAC systems for commercial buildings. Whether the objective of a customer is to start from scratch, upgrade an existing system, or set up an ongoing service and maintenance plan, we pride ourselves on being a single source for mechanical contractors, engineers, building owners, and general contractors alike. We attribute the sustained success of Varitec to our exemplary employees and dedication to providing world-class products and services.

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In operation since the 1990’s, Varitec’s Electrical Control and Automation division has manufactured UL508A electrical panels for a variety of industries and applications. In 2009 our business expanded into an assembly-line-style production facility. This provided the department with the ability to assemble high quality panels with increased efficiencies and reduced production times. Today, Varitec is equipped to manufacture any size, type or style of UL508A enclosed electrical control panel to meet your needs.