19.When the blower motor starts, the flame control will check for a positive air flow. If the air switch or blocked filter switch is not made the blower will stay on for a period of time then lockout. To adjust the air-proving switch, turn the adjustment screw counter-clockwise until the air proving light comes on, then turn the screw one turn counter-clockwise. The blocked filter switch should only be adjusted when the filter is new. This switch should be turned clockwise until switch makes and then two additional turns. If the gas valves open and close intermittently during normal operation, adjust pressure switches to increase the operational threshold until this condition ceases. This procedure should be followed with every burner.

20.After the pre-purge, the flame control energizes the HSI for the heat up period, approximately 30 seconds. At the end of that period the gas valve is opened for approximately 4 seconds. After the burner has lit and the primary safety control senses a flame, the burner will remain on until the call for heat is satisfied or operation is interrupted by a safety device.

21.If the burner fails to light, the flame control will lockout. When this happens press the reset button on the front of the control to recycle burner and check for improper combustion or week flame signal as a possible cause.

22Once the main burner flame is established the firing rate will be controlled by the TempTrac control. Refer to TempTrac manual PV500-41.

Burner Combustion Adjustment

Burner combustion should only be adjusted using a combustion analyzer. Do not attempt to adjust burner by sound or sight. With the burner firing, insert the combustion analyzer probe in the flue vent approximately two feet from the appliance. See Gas Train Illustration below for details.

With the burner firing and adjusted to low fire, adjust the regulator screw clockwise to increase gas flow or counter clockwise to decrease flow. The desired CO2 in the combustion products should be between 8.0 and 9.0% for natural gas, 9.5% to 10.5% for LP gas. Do not attempt to adjust combustion based on manifold pressure alone. Manifold pressure should only be used as a reference point.

a.Once the desired combustion is achieved at low fire, raise the burner firing rate to high fire. Adjust the valve orifice clockwise to reduce the flow of gas and counter-clockwise to increase the flow of gas in order to maintain the desired CO2 in the combustion products between 8.0 and 9.0% for natural gas, 9.5% to 10.5% for LP gas.

b.When high fire combustion has been reached and combustion is within the proper range, return to low fire to confirm settings again.

c.CAUTION: If at any point of the modulation range, carbon monoxide is in excess of 300ppm, contact PVI Industries customer service for assistance.

23Enable or reconnect any BMS/BAS control interface removed prior to the setup and adjustment of each water heater.

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PV500-46U 06/12

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PVI Industries 150, 180 manual PV500-46U 06/12
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150, 180 specifications

PVI Industries has established itself as a prominent manufacturer in the water heating industry, particularly known for its range of commercial water heaters. Among their well-regarded products is the PVI Industries 150,180, a robust unit engineered to meet the demanding needs of various commercial applications.

The PVI Industries 150,180 is designed to deliver high-efficiency performance, catering primarily to large-scale operations such as hotels, hospitals, and other facilities that require a constant supply of hot water. The unit boasts impressive heating capacity, enabling it to serve multiple points of use simultaneously. With a focus on reliability and durability, the construction of the 150,180 incorporates high-quality materials that ensure longevity even in the most challenging environments.

One of the standout features of the PVI 150,180 is its advanced heating technology. The unit utilizes a state-of-the-art gas-fired burner system, which not only ensures rapid heating but also maximizes energy efficiency. This attention to energy performance is crucial for businesses aiming to reduce operational costs and minimize their environmental impact. Furthermore, the unit supports a range of fuel types, including natural gas and propane, providing flexibility for different regional needs and preferences.

From a technological standpoint, the PVI Industries 150,180 includes an intuitive control system that allows users to monitor and adjust settings easily. This sophisticated interface provides real-time data on water temperature, operational status, and maintenance alerts, significantly enhancing user experience and system management.

Safety features are paramount in PVI’s design philosophy. The 150,180 comes equipped with multiple safety mechanisms, including a high-temperature limit switch and a pressure relief valve, ensuring safe operation and compliance with strict industry regulations.

In terms of installation, the PVI Industries 150,180 is engineered with versatility in mind. It can be installed in various configurations, making it adaptable to the spatial constraints of any facility. Maintenance is straightforward, with accessible components designed to reduce downtime and service costs.

Overall, the PVI Industries 150,180 represents a leading choice for commercial water heating solutions, characterized by its efficiency, reliability, and advanced technology, meeting the diverse needs of modern businesses while upholding the highest standards of safety and performance.
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