Hunter SP-WVL Installation Manual

The Hunter SP-WVL is a professional-grade, variable-speed ventilation fan designed for residential and light commercial applications. It features a powerful yet quiet motor, adjustable speed settings, integrated humidity sensing (optional), durable construction, and energy-efficient operation. Below are key sections for safety, features, installation, wiring, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Safety Precautions 3. Installation Planning 4. Specifications 5. Mounting & Ductwork 6. Electrical Wiring 7. Speed & Humidity Control Setup 8. Operation 9. Maintenance & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Variable-speed motor housing, Grille/Ceiling Plate, Mounting Brackets, Duct Connector, Wiring Harness, Optional Humidity Sensor.

FeatureDescription
Variable-Speed MotorAdjustable airflow from 50 to 110 CFM for optimal ventilation
Quiet OperationLow sone rating for minimal noise disturbance
Optional Humidity SensorAutomatically activates fan when humidity exceeds set level
Durable HousingGalvanized steel construction for long life
Energy EfficientENERGY STAR® certified motor
Easy InstallationIntegrated mounting brackets and pre-wired harness
Multi-Position MountingCan be installed in horizontal or vertical orientations
Duct Connector4-inch round duct adapter included
Grille OptionsVarious decorative grilles available
Thermal ProtectionBuilt-in overload protection

Safety Precautions

Read all instructions before installation. Ensure power is OFF at circuit breaker.

  1. Electrical Safety: Turn off power at main service panel before wiring.
  2. Mounting Safety: Use appropriate fasteners for ceiling type (wood joist, concrete).
  3. Duct Safety: Ensure ductwork is properly supported and sealed.
  4. Tool Safety: Wear safety glasses and gloves during installation.

WARNING! Risk of electric shock. Disconnect power before servicing. Do not install in wet locations unless specifically rated. Ensure all connections comply with local electrical codes.

Installation Planning

Determine optimal location for ventilation and access to power and ducting.

  1. Select Location: Choose area with joist access, away from obstructions.
  2. Check Clearances: Minimum 2 inches clearance around housing.
  3. Plan Duct Route: Shortest, straightest path to exterior with minimal elbows.
  4. Verify Power: Ensure 120V AC circuit is available and properly grounded.
  5. Gather Tools: Drill, screwdriver, wire strippers, duct tape, safety gear.

CAUTION! Verify ceiling can support fan weight. Use two people for handling during installation.

Specifications

Mounting & Ductwork

Secure housing and connect ducting before electrical connections.

  1. Cut Opening: Cut ceiling hole per template (typically 7.25" x 7.25").
  2. Mount Housing: Attach mounting brackets to joists using provided screws.
  3. Secure Housing: Lift housing into place and fasten to brackets.
  4. Connect Duct: Attach 4-inch duct to collar, secure with duct clamp or foil tape.
  5. Route to Exterior: Ensure duct runs to proper exterior vent cap.
  6. Seal Joints: Use aluminum foil tape or mastic to seal all duct connections.

Tip: Use rigid metal duct for best performance. Avoid sagging flexible duct.

Electrical Wiring

Connect to household 120V circuit. Follow local electrical codes.

  1. Turn OFF power at circuit breaker.
  2. Run Cable: Bring 14/2 NM-B cable with ground to housing.
  3. Strip Wires: Strip 1/2 inch of insulation from conductors.
  4. Connect to Housing: Match wires (Black to Black [Hot], White to White [Neutral], Green/Bare to Green [Ground]). Use wire nuts.
  5. Connect Wall Control: If using variable speed wall control, follow included diagram.
  6. Secure Connections: Ensure no exposed wire; tuck wires into housing.

WARNING! All wiring must be performed by a qualified electrician in accordance with NEC and local codes.

Speed & Humidity Control Setup

Configure fan operation via dip switches or optional controls.

  1. Speed Adjustment: Locate DIP switches inside housing. Set for desired default CFM (see chart in housing).
  2. Humidity Sensor (Optional): Plug sensor into dedicated port. Set desired humidity level (typically 40%-70% RH).
  3. Delay Timer: Adjust sensor delay (if equipped) from 5 to 60 minutes.
  4. Wall Control: Install compatible Hunter wall control for manual speed adjustment.

Note: Default speed is often set to 80 CFM. Humidity sensor activates fan only when installed and enabled.

Operation

Operate via wall switch, pull chain, or automatic humidity sensor.

  1. Manual On/Off: Use wall switch or pull chain (if equipped).
  2. Speed Control: Use variable speed wall control to adjust airflow.
  3. Automatic Mode: With humidity sensor, fan will run when humidity exceeds set point.
  4. Continuous Operation: For constant ventilation, set wall switch to ON or set sensor to lowest setting.
  5. Indicator Light: Some models have LED to show sensor activity.

WARNING! Do not operate without duct attached or grille installed. Keep foreign objects away from fan intake.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

  1. Power OFF: Turn off electricity at breaker.
  2. Clean Grille: Remove grille (usually twist-lock) and wash with mild detergent.
  3. Clean Housing: Vacuum dust from housing interior and fan blades.
  4. Check Duct: Inspect exterior vent cap for obstructions (birds, debris).
  5. Lubrication: Motor is permanently lubricated; no user service required.
  6. Sensor Care: Gently wipe humidity sensor with dry cloth.

CAUTION! Do not use water or cleaners inside motor housing. Do not bend fan blades.

Regulatory Information

UL Listed to Standard 507 for Electric Fans. Complies with FCC Part 15 for unintentional radiators. HVI Certified for airflow performance. Meets ENERGY STAR® requirements for energy efficiency. Copyright © Hunter Fan Company. For technical support, visit www.hunterfan.com or contact 1-888-830-1326.

Troubleshooting

SymptomPossible CauseCorrective Action
Fan does not runNo power, tripped breaker, faulty switchCheck circuit breaker; verify switch operation; test for 120V at housing.
Low airflowDuct obstruction, dirty grille, incorrect speed settingClear duct blockage; clean grille; adjust speed setting or DIP switches.
Excessive noiseLoose housing, duct vibration, foreign objectTighten mounting screws; secure duct; remove debris from fan.
Humidity sensor not workingNot enabled, set point too high, dirty sensorEnable sensor via DIP switch; lower set point; clean sensor.
Fan runs continuouslySwitch stuck ON, sensor set too low, wiring faultCheck switch; adjust sensor set point; inspect wiring.
Motor hums but doesn't startBad capacitor, seized bearingDisconnect power and contact qualified technician.

Reset: Turn power OFF for 30 seconds, then ON. For sensor, use reset button if equipped.

Service: 1-888-830-1326; www.hunterfan.com. Do not attempt to repair motor yourself.

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