Daikin Fit Install Manual

The Daikin Fit is a compact, high-efficiency ductless mini-split heat pump system designed for residential and light commercial applications. It features inverter-driven compressor technology for precise temperature control, quiet operation, compatibility with Daikin One+ smart thermostat, and advanced filtration. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Outdoor unit, Indoor unit(s), Remote controller, Communication/power wiring, Refrigerant piping, Drain hose.

Installation

Unpack and inspect all components. Ensure proper location selection for indoor and outdoor units.

1. Mount indoor unit: Select location away from direct sunlight and heat sources, ensure proper clearance.
2. Install outdoor unit: Place on stable, level surface with adequate airflow and clearance.
3. Connect refrigerant piping: Flare connections, apply insulation, ensure proper length and routing.
4. Connect drain hose: Route to proper drainage location with downward slope.
5. Connect wiring: Follow electrical diagram for power and communication lines.
6. Evacuate and charge system: Vacuum to remove moisture and non-condensables, charge with R-410A refrigerant.

WARNING! Installation must be performed by qualified HVAC technician. Follow all local codes and safety regulations. Handle refrigerant properly.

First-Time Setup

Power on system; follow startup procedure.

1. Power up: Turn on circuit breaker for outdoor and indoor units.
2. Test operation: Use remote to set cooling/heating mode, verify airflow and temperature change.
3. Configure settings: Set temperature units (°F/°C), fan speeds, timer functions.
4. Connect to Daikin One+: Follow app instructions to pair system with smart thermostat if applicable.
5. Check drainage: Verify condensate is draining properly from indoor unit.

CAUTION! Do not operate system without proper refrigerant charge. Ensure all electrical connections are secure.

Specifications

• Model Series: Daikin Fit (multiple capacity models available).
• Refrigerant: R-410A.
• Power Supply: 208/230V, 1-phase, 60Hz.
• SEER Rating: Up to 24.5 (varies by model).
• HSPF Rating: Up to 10.5 (varies by model).
• Operating Range (Cooling): 14°F to 115°F outdoor temperature.
• Operating Range (Heating): -5°F to 75°F outdoor temperature.
• Sound Level (Indoor): As low as 19 dB(A).
• Sound Level (Outdoor): As low as 49 dB(A).
• Communication: Two-wire communication between indoor and outdoor units.
• Warranty: 12-year parts limited warranty on compressor, 6-year on other components.

Controls and Settings

Access controls via remote controller or Daikin One+ app. Indoor unit buttons: POWER, MODE, FAN SPEED, TEMP ADJUST.

Remote: POWER, MODE (Auto, Cool, Heat, Dry, Fan), TEMP ▲/▼, FAN SPEED (Auto, Low, Medium, High), TIMER, SWING, SLEEP, FILTER RESET.

Advanced Settings (via remote): Temperature display (°F/°C), beep sound on/off, auto-restart on/off, filter timer reset, self-cleaning operation. Installer Settings (via remote or dip switches): Address setting for multiple systems, refrigerant charge adjustment, test run mode.

Connecting Devices

Daikin One+ Smart Thermostat: Requires compatible interface kit and Wi-Fi connection. Additional Indoor Units: For multi-zone systems, connect to outdoor unit via branch controller.

1. Turn off power at circuit breaker before making connections.
2. Follow wiring diagram for thermostat connections.
3. For multi-zone systems, set unique addresses for each indoor unit.
4. Connect to Wi-Fi network through Daikin One+ app.

Tip: Label all wires during installation for easier troubleshooting later.

Maintenance

Regular maintenance ensures optimal performance and efficiency.

1. Clean air filters: Remove and wash every 2-4 weeks during operation.
2. Clean indoor coil: Use soft brush or vacuum annually.
3. Clean outdoor unit: Remove debris from coil and fan area seasonally.
4. Check drain line: Ensure clear of obstructions.
5. Inspect refrigerant lines: Check for leaks, ensure insulation intact.
6. Check electrical connections: Tighten if necessary (power off).
7. Professional service: Schedule annual maintenance by qualified technician.

WARNING! Always turn off power before performing any maintenance. Do not use water pressure cleaner on outdoor unit.

Accessibility Features

Remote with large buttons and clear display. Daikin One+ app with voice control compatibility (Amazon Alexa, Google Assistant). Timer functions for automated operation. Follow-me function with optional remote thermostat.

Care & Cleaning

Turn off power before cleaning. Clean filters with mild detergent and water, air dry completely before reinstalling. Wipe indoor unit with soft, dry cloth. Clean outdoor unit with soft brush or low-pressure air.

CAUTION! Do not use abrasive cleaners, solvents, or excessive water. Do not bend aluminum fins on coils.

Regulatory Information

UL listed. Meets DOE energy efficiency standards. EPA refrigerant handling certification required for installation and service. This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. For support, visit www.daikin.com or contact 1-855-344-2546.

Troubleshooting

Reset: Turn power off for 5 minutes, then restart. Use remote to access reset function if available.

Service: 1-855-344-2546; www.daikin.com