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Fontana FS-354AQ-DP Antique Commercial Automatic Sensor Faucet: AC/DC Electrical Power Wiring Diagram

This AC/DC electrical power wiring resource supports architects, electrical engineers, plumbing engineers, specifiers, contractors, installers and facility teams coordinating the Fontana FS-354AQ-DP commercial automatic sensor faucet. The diagram identifies the faucet sensor, sensor lead, electronic control module, solenoid valve, AC adapter / transformer, DC battery pack, waterproof plug-in connectors, supply hose and the selectable AC or DC power path required for touchless faucet operation.

FS-354AQ-DP AC/DC Sensor Faucet Control Architecture

The FS-354AQ-DP uses an electronic control architecture in which the faucet sensor communicates with a below-deck control module, which in turn operates the solenoid valve controlling water flow. The system can be configured for AC operation through an AC adapter / transformer or for DC operation using a 6V battery pack containing four AA batteries. Waterproof plug-in connectors are used at the principal electrical interfaces shown in the technical wiring diagram.

  • Model: FS-354AQ-DP
  • Fixture type: Commercial automatic sensor faucet
  • Installation: Deck mounted
  • Power architecture: AC/DC dual-power operation
  • AC input: 110–220V, 50–60Hz
  • AC interface: AC adapter / transformer to control module
  • DC power: 6V
  • DC battery configuration: 4 × AA batteries
  • Battery recommendation: Alkaline batteries
  • Estimated battery life shown: Up to 12 months, depending on usage
  • Power consumption: Less than 2 W
  • Standby power: Less than 0.5 W
  • Sensor range: Adjustable 16–32 cm
  • Water supply: G1/2 in (DN15) / 1/2 in NPT
  • Water flow: 1.2 GPM (4.54 L/min) at 60 PSI
  • Factory default timeout: 30 seconds
  • Application: Indoor commercial use
Product Page Installation Guide

Required AC/DC Electrical Wiring Drawing Package

The electrical wiring drawing should establish the complete control sequence from the faucet sensor to the electronic control module and from the control module to the solenoid valve. Separate AC and DC power paths should be identified so installers can distinguish the 110–220V adapter-fed configuration from the 6V four-AA-battery configuration. All plug-in connections, signal wiring, power wiring, water-control components and service-access requirements should be coordinated before the system is energized.

AC/DC Electrical Power Wiring Diagram

Shows the complete electrical and control arrangement for the FS-354AQ-DP, including the faucet-mounted sensor, sensor lead, electronic control module, solenoid valve, AC adapter / transformer, DC battery pack and associated waterproof plug-in connectors.

Faucet Sensor & Signal Wiring

The integrated faucet sensor connects to the electronic control module through the sensor lead / cable. This connection transmits the detection signal that initiates automatic water-flow control when a valid target enters the configured sensing range.

Electronic Control Module

The electronic control module serves as the central interface between the faucet sensor, selected electrical power source and solenoid valve. It receives the sensor signal and controls the electrical command used to open or close the water-control valve.

Solenoid-Valve Connection

The control module connects electrically to the solenoid valve responsible for automatic water actuation. The solenoid is installed in the water-supply path between the building supply and faucet inlet so electronic commands control water delivery.

AC Power Configuration

In AC mode, an AC 110–220V, 50–60Hz source supplies the system through the designated AC adapter / transformer. The low-voltage output connection from the adapter plugs into the appropriate control-module power input.

DC Battery Configuration

In DC mode, electrical power is supplied by a 6V battery pack containing four AA batteries. The drawing recommends alkaline batteries and indicates an estimated battery life of up to 12 months depending on actual faucet usage.

Selectable Power Path

The wiring diagram presents AC and DC as alternative power options feeding the electronic control module. The selected configuration should be coordinated with the project electrical provisions and installed using the corresponding supplied connection components.

Waterproof Electrical Connections

The diagram identifies waterproof plug-in connectors at the system wiring interfaces. Connectors should be fully seated before operation and maintained above potential flood level and away from direct water exposure.

Power Consumption & Standby Load

The electrical specification identifies operating power consumption of less than 2 W and standby power below 0.5 W. These values should be considered when coordinating the faucet system with the selected project power source.

Engineering note: Disconnect electrical power before servicing any control-system component. Keep the sensor lead, control-module connections, solenoid wiring, AC adapter connection and DC battery connector dry, fully seated and protected from mechanical strain. Use the power configuration and supplied connection components appropriate to the installed system.

Electrical Installation & Coordination Considerations

AC Power Provision

Where AC operation is selected, coordinate an appropriate 110–220V, 50–60Hz supply location with the adapter / transformer while keeping the electrical connection protected from water exposure.

DC Battery Access

Where DC operation is selected, position the four-AA battery pack where batteries can be inspected and replaced without removing the faucet, lavatory or permanent under-counter construction.

Waterproof Connections

Verify that all plug-in electrical connectors are fully engaged and protected against moisture intrusion before energizing the control system.

Cable Routing

Secure sensor and power cables to prevent movement, pinching and strain at connectors. Route wiring clear of sharp edges, flexible plumbing lines and moving service components.

Control-Module Protection

Install the electronic controller in a dry below-deck location above potential flood level and protect the enclosure from direct water exposure and excessive moisture.

Service Accessibility

Maintain adequate under-counter access to the control module, battery pack, AC adapter connection, solenoid valve and waterproof electrical connectors for testing, maintenance and replacement.

AC/DC Electrical System Components

1. Faucet Assembly with Sensor The deck-mounted faucet incorporates the detection sensor that initiates the electronic control sequence when hands enter the configured activation range. 2. Sensor Lead / Cable The sensor lead connects the faucet-mounted detection assembly to the electronic control module and carries the activation signal below the countertop. 3. Electronic Control Module The control module receives sensor input, interfaces with the selected AC or DC power source and controls the solenoid-valve operating signal. 4. Solenoid Valve The electrically actuated solenoid valve opens and closes the water path in response to commands received from the electronic control module. 5. AC Adapter / Transformer The AC adapter provides the interface between the 110–220V, 50–60Hz building electrical supply and the faucet's electronic control system. 6. DC Battery Pack The alternative DC supply uses four AA batteries to provide approximately 6V power to the electronic control module when battery operation is selected. 7. Supply Hose & Fittings The plumbing assembly routes the G1/2 / DN15 water supply through the solenoid-controlled path toward the faucet while remaining separate from the electrical wiring. 8. Mounting Hardware The faucet mounting hardware secures the deck-mounted assembly while allowing the sensor lead and water connection to pass below the mounting surface.

Electrical Wiring & Power Requirements

  • Sensor Cable → Control Module The faucet sensor connects directly to the electronic control module through the dedicated sensor / signal cable.
  • Control Module → Solenoid Valve The electronic control module sends the actuation signal to the solenoid valve to initiate and terminate water flow.
  • AC Adapter → Control Module For AC operation, the 110–220V, 50–60Hz source feeds the supplied adapter / transformer, which connects to the designated AC input of the electronic controller.
  • Battery Pack → Control Module For DC operation, the 6V four-AA battery pack connects to the designated DC input of the control module.
  • Waterproof Plug-In Connections The wiring interfaces shown use waterproof plug-in connectors. Verify that each connector is fully seated and protected from moisture before operation.
  • Power Consumption The supplied diagram identifies operating power consumption of less than 2 W and standby consumption below 0.5 W.
  • Adjustable Sensor Range The infrared sensor range is identified as adjustable between 16 and 32 cm.
  • Automatic Timeout The supplied diagram identifies a factory-default automatic timeout of 30 seconds.

Project verification: The AC/DC electrical power wiring diagram is a coordination resource and should not be scaled. Before installation or energization, verify the selected AC 110–220V, 50–60Hz or DC 6V four-AA power configuration, control-module connections, sensor lead, solenoid-valve wiring, waterproof plug-in connectors, power consumption, standby load, 16–32 cm adjustable sensor range, G1/2 / DN15 water connection, supply-hose routing, under-counter service access and 30-second factory-default timeout against the approved project requirements. Disconnect power before servicing and protect all electrical components from water intrusion.