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Fontana FS-354AQ-DP Antique Commercial Automatic Sensor Faucet: Battery Pack and Backup Power Configuration

This battery-pack and backup-power resource supports architects, electrical engineers, plumbing engineers, specifiers, contractors, installers and facility teams coordinating the DC power arrangement for the Fontana FS-354AQ-DP commercial automatic sensor faucet. The diagram identifies the four-AA battery pack, waterproof battery enclosure, polarity requirements, control module, low-battery indicator, waterproof cable connection, solenoid-valve interface, sensor connection and under-counter service clearances required for battery replacement and routine maintenance.

FS-354AQ-DP DC Battery Power Assembly

The FS-354AQ-DP battery configuration uses four AA alkaline batteries arranged in a dedicated waterproof battery pack to provide nominal DC 6V power to the electronic control module. The battery pack connects through a waterproof cable interface, while the control module receives the faucet sensor signal and controls the solenoid valve responsible for water activation. A red low-battery indicator provides a visual maintenance signal when battery replacement is required.

  • Model: FS-354AQ-DP
  • Fixture type: Commercial automatic sensor faucet
  • Installation: Deck mounted
  • Battery type: AA alkaline
  • Battery quantity: 4 × AA
  • Nominal battery output: DC 6V
  • Operating voltage: DC 4.8–6.6V
  • Operating power: ≤1.5 W
  • Standby power: ≤0.5 mW
  • Low-battery indication: Red LED
  • Battery-pack protection: IPX6
  • Battery connection: Waterproof connector
  • Battery compartment: Removable cover with polarity markings
  • Minimum front service clearance: 200–300 mm (7.87–11.81 in)
  • Control component: Electronic control module with low-battery indicator
  • Water-control component: Solenoid valve
Product Page Installation Guide

Required Battery-Pack & Backup-Power Drawing Package

The battery-power drawing should establish the complete DC power path from the four-AA battery pack to the electronic control module and associated sensor-operated water-control components. The battery enclosure, polarity orientation, waterproof connector, low-battery indicator, sensor cable, solenoid connection and service-access zone should be clearly identified. The battery pack and controller should remain accessible after completion of the countertop, basin and surrounding cabinetry.

Battery Pack & Backup Power Configuration

Shows the complete DC power arrangement serving the FS-354AQ-DP, including the four-AA alkaline battery pack, waterproof connector, electronic control module, low-battery indicator, faucet sensor cable, solenoid-valve connection and required under-counter service space.

Four-AA Battery Pack

The battery enclosure accepts four AA alkaline batteries to provide nominal DC 6V power. All four batteries should be installed according to the polarity markings inside the compartment and replaced as a complete set when required.

Battery Compartment Detail

The detailed view identifies the internal four-battery arrangement, removable battery cover, cable outlet and waterproof connector. Positive and negative polarity markings should be observed during battery installation or replacement.

DC Operating Voltage

The battery-powered configuration is identified with a nominal DC 6V output and an operating-voltage range of DC 4.8–6.6V. The battery pack feeds the electronic control module through the designated waterproof connection.

Control Module

The electronic control module receives power from the battery pack and the activation signal from the faucet sensor. It then controls the solenoid-valve operation required to initiate and terminate water flow.

Low-Battery Indicator

A red low-battery LED is identified on the control module. When the indicator signals insufficient battery condition, the four AA batteries should be replaced together rather than mixing new and depleted cells.

Waterproof Battery Connection

The battery cable terminates at a waterproof plug-in connector between the battery pack and control system. The connector should be fully engaged and tightened before operation to maintain the intended protected connection.

Solenoid-Valve Interface

The control module communicates with the solenoid valve in the water-supply path. After the sensor detects a valid hand position, battery-supplied electrical power enables the controller to actuate the solenoid and regulate water flow to the faucet.

Service Access & Clearance

The diagram identifies a front service-access zone of approximately 200–300 mm (7.87–11.81 in). Maintain unobstructed access to the battery cover, connector, control module and solenoid assembly for routine inspection and battery replacement.

Engineering note: The battery pack should be installed in an accessible location below the countertop and protected from unnecessary mechanical damage. Observe battery polarity, replace all four batteries at the same time, fully secure the waterproof connector and maintain the required front service-clearance zone for inspection and maintenance.

Battery Installation & Service Coordination Considerations

Battery Polarity

Install each AA battery according to the positive and negative polarity markings inside the battery compartment. Incorrect orientation can prevent proper system operation.

Complete Battery Replacement

When replacement is required, replace all four AA batteries at the same time. Do not mix batteries of different ages or charge conditions within the pack.

Waterproof Connector

Ensure the battery cable connector is fully seated and tightened before operation. Keep the connection protected from unnecessary water exposure during installation and routine service.

Low-Battery Monitoring

Monitor the red low-battery indicator on the control module during facility maintenance. A low-battery indication signals that battery replacement is required.

Battery-Pack Access

Locate the battery enclosure where its removable cover can be opened without disturbing the faucet, basin, control module, plumbing connections or permanent cabinet construction.

Front Service Clearance

Provide approximately 200–300 mm (7.87–11.81 in) of unobstructed front access around the below-counter components for battery replacement, inspection and controller servicing.

Battery & Backup-Power System Components

1. Four-AA Alkaline Batteries Four AA alkaline cells provide the nominal DC 6V electrical supply used by the battery-powered faucet control system. 2. Waterproof Battery Pack The battery enclosure contains the four AA cells and incorporates a removable cover, cable outlet and waterproof electrical connection. 3. Electronic Control Module The controller receives battery power and sensor input and manages the electrical signal required to operate the faucet's solenoid valve. 4. Low-Battery Indicator The red LED provides a visible indication when battery condition has reached the point where replacement is required. 5. Waterproof Battery Connector The protected plug-in connection links the battery enclosure with the electronic control module and should be fully secured during installation. 6. Solenoid Valve The solenoid valve receives the controller's electrical command and regulates the water supply delivered to the automatic faucet.

DC Power & Maintenance Requirements

  • Battery Type & Quantity The supplied configuration specifies four AA alkaline batteries installed within the dedicated battery enclosure.
  • DC Output The four-cell battery pack provides nominal DC 6V output, with the supplied diagram identifying an operating-voltage range of DC 4.8–6.6V.
  • Power Demand The technical drawing identifies operating power of ≤1.5 W and standby power of ≤0.5 mW.
  • Battery-Pack Protection The battery enclosure is identified with an IPX6 protection rating and a waterproof plug-in cable connection.
  • Low-Battery Indication A red LED on the control module indicates when the battery pack requires maintenance or replacement.
  • DC Power Flow The illustrated sequence is: 4 × AA battery pack → electronic control module → sensor activation/control signal → solenoid valve → faucet water-flow operation.
  • Service Clearance Maintain approximately 200–300 mm (7.87–11.81 in) of unobstructed front access to the battery pack and associated below-counter control components.
  • Battery Replacement Observe correct polarity and replace all four batteries at the same time. Ensure the waterproof connector is fully secured before returning the faucet to service.

Project verification: The battery-pack and backup-power configuration is a coordination and maintenance resource and should not be scaled. Before installation or commissioning, verify the four-AA alkaline battery requirement, nominal DC 6V output, DC 4.8–6.6V operating range, ≤1.5 W operating power, ≤0.5 mW standby power, battery polarity, IPX6 battery enclosure, waterproof connector, red low-battery indicator, control-module connection, sensor cable, solenoid-valve interface and required 200–300 mm front service clearance against the approved project requirements. Keep battery and control components accessible for inspection and replacement.