Daikin EKSV21P Installation Manual

The Daikin EKSV21P is a compact, high-efficiency air conditioning unit designed for residential and light commercial applications. This manual provides essential information for the safe and proper installation of the unit, including pre-installation checks, refrigerant piping, electrical wiring, drainage setup, and final commissioning procedures. Below are key sections covering safety, installation steps, specifications, and troubleshooting.

Safety Precautions

Before installation, read all safety instructions to prevent injury or equipment damage.

Unit Specifications

• Model: Daikin EKSV21P
• Cooling Capacity: 21,000 BTU/h
• Power Supply: 208-230V, 1 Phase, 60Hz
• Refrigerant Type: R-410A
• Max Piping Length: 25 meters (82 feet)
• Max Height Difference: 15 meters (49 feet)
• Dimensions (HxWxD): Indoor Unit: 295 x 900 x 225 mm; Outdoor Unit: 550 x 780 x 320 mm
• Net Weight: Indoor Unit: 9 kg; Outdoor Unit: 35 kg

Pre-Installation Checklist

Verify all components are present and undamaged before starting.

1. Unpack and inspect: Check for shipping damage to indoor/outdoor units.
2. Verify tools: Ensure you have tubing cutter, flaring tool, torque wrench, vacuum pump, manifold gauge, leak detector.
3. Check site: Confirm installation location meets requirements (clearance, wall strength, drainage access).
4. Review manual: Understand all steps before proceeding.

WARNING! Do not install if components are damaged. Contact supplier immediately.

Installation Location Requirements

Select appropriate locations for indoor and outdoor units.

1. Indoor Unit: Install on a sturdy wall, away from direct sunlight, heat sources, and moisture. Ensure minimum clearances: Top 15 cm, sides 12 cm, front 200 cm.
2. Outdoor Unit: Place on a solid, level base with good airflow. Maintain clearances: Front 50 cm, rear 30 cm, sides 30 cm. Protect from snow, debris, and excessive noise areas.
3. Piping Route: Plan shortest possible path between units with minimal bends.

CAUTION! Improper location can reduce efficiency and cause premature failure.

Refrigerant Piping Installation

Proper piping is critical for system performance.

1. Cut pipes: Use tubing cutter to cut copper pipes to required length. Deburr ends.
2. Flare connections: Create 45-degree flares using flaring tool. Apply minimal refrigerant oil to flare surface.
3. Connect pipes: Connect indoor unit first, then outdoor unit. Use two wrenches to avoid twisting.
4. Leak check: Pressurize with dry nitrogen (approx. 550 psi) and apply soap solution to all joints. No bubbles should appear.
5. Evacuate: Connect vacuum pump to service port. Evacuate to below 500 microns for at least 15 minutes.
6. Charge refrigerant: After evacuation, open service valves to release factory charge. Weigh additional charge if needed per piping length.

WARNING! Always use R-410A compatible tools and gauges. Do not mix refrigerants.

Electrical Wiring

Follow local electrical codes and use correct wire sizes.

1. Power off: Ensure main power disconnect is OFF.
2. Indoor unit: Connect power cable (L1, L2, Ground) and communication cable to terminal block as per wiring diagram.
3. Outdoor unit: Connect power and communication cables from indoor unit. Secure ground wire.
4. Conduit: Use approved conduit for protection where required.
5. Check: Verify all connections are tight and correct before powering on.

Tip: Recommended wire size: 12 AWG for power, 18 AWG shielded for communication. Maximum wire length: 30 meters.

Drainage System Setup

Proper drainage prevents water damage.

1. Attach drain hose: Connect to indoor unit drain port. Insulate if passing through unconditioned spaces.
2. Route hose: Slope downward continuously (minimum 1/100 gradient). Avoid sharp bends.
3. Terminate: Drain to appropriate outlet (floor drain, outside). Use trap if required by code.
4. Test: Pour water into drain pan to confirm free flow.

CAUTION! Incorrect slope can cause water backup and leakage.

Final Installation Steps

Complete physical installation before testing.

1. Secure units: Ensure indoor unit is level and firmly mounted. Tighten outdoor unit mounting bolts.
2. Seal openings: Use sealant around piping penetrations to prevent air/water ingress.
3. Install covers: Attach front panel on indoor unit and service covers on outdoor unit.
4. Label: Apply refrigerant type and electrical rating labels near service access.

Commissioning & Test Run

Verify system operation before handing over to user.

1. Power on: Turn on main disconnect and indoor unit circuit breaker.
2. Remote setup: Insert batteries into remote, point at indoor unit.
3. Test modes: Run cooling and heating modes for at least 15 minutes each.
4. Check parameters: Verify suction/discharge pressures, temperature drop (8-12°C), and airflow are within specifications.
5. Inspect: Listen for abnormal noises, check for leaks, ensure condensate drains properly.
6. User instruction: Explain basic operation, filter cleaning, and error codes to end user.

WARNING! Do not operate if abnormal sounds, smells, or error codes appear.

Maintenance Guidelines

Regular maintenance ensures longevity and efficiency.

• Air Filters: Clean every 2 weeks; replace every 3-6 months.
• Outdoor Unit: Keep coil clean of leaves and debris. Check annually.
• Drain Pan: Inspect and clean annually to prevent algae growth.
• Professional Service: Schedule annual inspection by qualified technician for refrigerant charge, electrical connections, and overall performance.

CAUTION! Always disconnect power before performing any maintenance.

Troubleshooting

Reset: Turn power off for 5 minutes, then restart. If error persists, contact service.

Service: 1-800-DAIKIN (1-800-324-546); www.daikin.com