Installation: Nirvana NE100 Swimming Pool Heat Pump User Manual

Overview

The NE100 Swimming Pool Heat Pump is an outdoor air-source heat pump designed to warm pool water efficiently through a dedicated circulation system. It transfers heat from outdoor air into the pool water through a titanium heat exchanger, while the integrated controller provides heating, cooling, automatic operation, temperature adjustment, timer functions, and status monitoring.

The unit is intended for permanent installation by qualified professionals. It is suitable for pool owners who need controlled water heating, provided the heat pump has adequate water flow, outdoor ventilation, electrical protection, and drainage.

Specifications

• Model: NE100
• Power supply: 208–230 V, single phase, 60 Hz
• Heating capacity at rated condition: 98.2 kBtu/h
• Heating capacity at lower test condition: 62 kBtu/h
• COP: 6.0 at the rated condition and 4.1 at the lower test condition
• Maximum water outlet temperature: 104°F
• Rated water flow: 40.2 gpm
• Rated water pressure drop: 2.9 psi
• Rated ambient operating range: 23°F to 104°F
• Maximum input power: 26.61 kBtu/h
• Compressor rated-load current: 30 A
• Compressor locked-rotor current: 140 A
• Rated circuit ampacity: 21 A
• Maximum over-current protection: 46.5 A
• Fan motor rating: 1.4 A, 0.195 hp
• Refrigerant: R410A, 6.17 lb
• Dry weight: 256 lb
• Water connection: 48.3 mm
• Waterproof classification: IPX4
• Electrical shock protection: Class I
• Refrigerant-side pressure limits: 638/217 psi
• Water-side pressure limit: 101.5 psi

Detailed Description

The NE100 Swimming Pool Heat Pump uses a compressor, refrigerant circuit, finned heat exchanger, electronic expansion valve, four-way valve, fan assembly, and titanium water heat exchanger. Outdoor air passes through the finned heat exchanger while the refrigeration circuit transfers usable heat to the pool-water circuit.

Water enters through the inlet connection, passes through the titanium heat exchanger, and leaves through the outlet connection at a higher or lower temperature depending on the selected operating mode. The titanium exchanger separates the refrigerant circuit from the pool water and is intended for use in a pool circulation installation.

Important components include the compressor, fan motor, fan blade, electrical box, wire controller, ambient temperature sensor, titanium heat exchanger, high-efficiency finned heat exchanger, electronic expansion valve, four-way valve, chassis, protective panels, and rear air grille.

Condensation forms during normal operation and exits from the underside of the chassis. This water is not normally a pool-water leak, but the drain path must remain open and directed away from the equipment base.

Included Accessories

• One user manual
• Four rubber blankets
• One drain connector
• One drain pipe
• Two water pipe joints

Inspect the package before installation and confirm that the listed accessories are present and undamaged.

Safety

• Have the heat pump installed, wired, serviced, or moved only by a qualified technician.
• Install the unit outdoors in an open, well-ventilated location and secure it firmly to a suitable base.
• Use a permanently connected 208–230 V, single-phase, 60 Hz electrical supply for the NE100.
• Install an independent power disconnect and suitable circuit protection in accordance with local electrical requirements.
• Provide a proper grounding or bonding connection. Do not connect the unit to an ungrounded supply.
• Disconnect power at the breaker or disconnect switch before cleaning, inspection, wiring work, or maintenance.
• Never operate electrical controls with wet hands.
• Keep fingers, tools, and loose clothing away from the fan and evaporator.
• Do not install the unit where flammable gas, oil vapors, corrosive substances, sulfur compounds, or high-frequency equipment may be present.
• Inspect unpacked equipment carefully because sheet-metal edges and heat-exchanger fins may be sharp.
• Stop operation when a fault or protection code appears and arrange professional inspection when necessary.
• Keep children away from the equipment and supervise anyone unfamiliar with pool heat-pump operation.
• If the power cable is damaged, it must be replaced by a qualified technician.

Installation and Setup

Moving the Unit

Keep the heat pump upright during storage and transportation. Do not tilt it more than 30 degrees. Never lift or carry the unit by its water unions because this can damage the internal titanium heat exchanger.

Installation Requirements

Install the NE100 on a solid, level concrete foundation or on corrosion-resistant brackets that can safely support its weight. Secure the unit with M10 bolts. The base should be stable, water-resistant, and raised at least 3 inches above the ground.

Use a user-supplied circulation pump and a properly supported water circuit. Flexible PVC piping can help reduce vibration transmission, but the water unions must not carry the weight of unsupported pipe. Keep the pipe run between the pool and heat pump below 30 feet where possible to support heating efficiency.

Plan for a bypass arrangement, suitable PVC tubing, compatible PVC adhesive, sandpaper, mounting hardware, and any required fastening studs before beginning the installation.

Location and Clearances

• Choose a location that is accessible for operation, inspection, and servicing.
• Keep at least 1,500 mm, or approximately 5 feet, of unobstructed space in front of the unit.
• Leave approximately 500 mm, or 2 feet, of open space at the sides and rear.
• Provide unobstructed space above the unit for air circulation.
• Do not allow discharged air to return directly into the heat pump.
• Do not aim the air outlet toward nearby building windows.
• Keep the unit away from roads, tracks, noise-sensitive areas, and locations accessible to children.
• Provide a drainage arrangement near the unit to protect the foundation and surrounding area.

Water-Circuit Layout

The recommended flow path is:

Pool → pump → filter → heat pump → sanitizer → return to pool

The installation may include a Y-type filter, one-way valve, circulation pump, hair collector, stop valves, pH regulator, sand filter, flocculator, disinfector, and metering pump as required by the pool system.

Clean the filter regularly so restricted flow does not trigger a water-flow fault. Install a drain valve at the lowest point of the lower water pipe so the heat pump and connected pipework can be emptied for winterizing.

Condensate Drain

Fit the supplied drain connector into the underside opening and attach the drain pipe. Direct condensate away from the base and ensure that the drain path is not blocked.

Electrical Connection

The electrical supply must use outdoor-rated cable sized by an electrician according to the unit rating, cable length, local regulations, and installation conditions. A suitable circuit breaker, disconnect switch, grounding system, and leakage protection must be provided where required.

1. Switch off and isolate the power supply.
2. Remove the electrical side panel with a screwdriver to expose the terminal block.
3. Feed the supply cable through the designated entry point.
4. Connect the conductors to the terminal block according to the unit wiring diagram.
5. Secure the cable so that its weight does not place strain on the terminals or internal components.
6. Replace the electrical panel before restoring power.

Pre-Start Inspection

• Confirm that the unit is correctly installed and securely mounted.
• Verify that the supply voltage matches the rating on the unit.
• Check all water pipes, unions, wiring, grounding, and bonding.
• Make sure the air inlet and outlet are unobstructed.
• Confirm that drainage and ventilation paths are open.
• Check the system for water leaks.
• Test the GFCI or current-leakage protection when required by local rules.

First Trial Run

1. Complete the installation and inspect every pipe and electrical connection.
2. Start the circulation pump before applying power to the heat pump.
3. Remove trapped air from the water-circulation piping.
4. Press the power key on the controller and select the required temperature and operating mode.
5. Check that operating current is consistent with the unit specifications.
6. Confirm that the control-panel buttons and display respond correctly.
7. Check for water leaks, blocked condensate drainage, unusual vibration, and abnormal sound.
8. Turn off the circulation pump and verify that the heat pump stops when a water-flow fault is detected.

Control Panel and Operation

Display Indicators

• Heating mode: The unit is configured to heat pool water.
• Cooling mode: The unit is configured to cool pool water.
• Automatic mode: The unit selects operation according to the configured system behavior.
• Timer on or timer off: A scheduled start or stop function is active.
• Defrost flashing: The unit is performing a defrost operation.

Basic Controls

• Power: Press the power key from the main screen to turn the unit on or off.
• Lock and unlock: Hold the power key for 3 seconds.
• Mode selection: Press the mode key to cycle through heating, cooling, and automatic modes.
• Temperature adjustment: Press the up or down key from the main screen, then adjust the target temperature. The setting saves when the confirmation key is pressed or after approximately 5 seconds without input.
• Clock setting: Hold the timer key for 3 seconds, adjust the hour, confirm, adjust the minutes, and save.
• Timer: Open the timer screen to review or set start and stop times. Set the hour and minutes for each function, then save. Hold the timer key for 2 seconds from the timer query screen to cancel the timer setting.
• Factory reset: Hold the up and down keys together for 2 seconds from the main screen to enter the reset function.
• Manual defrost: In heating mode, hold the mode and up keys together for 3 seconds.
• Temperature unit: Hold the up and down keys together for 5 seconds to switch between Fahrenheit and Celsius.

Status Information

The controller can display internal operating values through the status screen. Available values include inlet-water temperature, outlet-water temperature, ambient temperature, exhaust temperature, suction temperature, outer-coil temperature during heating, inner-coil temperature during cooling, and electronic expansion-valve position.

Troubleshooting

When a fault appears, stop normal operation if necessary, check water circulation and air movement, and contact a qualified technician for electrical, refrigerant, sensor, or sealed-system work.

• E01 — Communication fault: Inspect controller and internal communication wiring.
• E02 — Water-flow fault: Check that the circulation pump is running, valves are open, the filter is clean, and the water circuit is not blocked or airlocked.
• E03 — High-pressure protection: Check water flow, filter condition, and air circulation. Refrigerant-system inspection must be performed professionally.
• E04 — Low-pressure protection: Check for restricted airflow or water-flow problems and have the refrigerant circuit inspected by a technician.
• E10 — Inlet-water temperature sensor fault: Inspect the inlet sensor and its wiring.
• E11 — Outlet-water temperature sensor fault: Inspect the outlet sensor and its wiring.
• E14 — Ambient-temperature sensor fault: Inspect the ambient sensor and its wiring.
• E15 — Suction-temperature sensor fault: Arrange professional sensor and refrigeration-circuit testing.
• E16 — Exhaust-temperature sensor fault: Arrange professional inspection of the sensor and compressor discharge circuit.
• E17 — Heating outer-coil sensor fault: Inspect the coil sensor and connections.
• E18 — Cooling inner-coil sensor fault: Inspect the coil sensor and connections.
• E25 — Low outlet-water-temperature protection in cooling mode: Check operating conditions and water circulation.
• E26 — Excessive inlet-to-outlet water-temperature difference: Check flow rate, filter condition, and piping restrictions.
• E27 — High exhaust-temperature protection: Stop operation and arrange professional inspection.
• E28 — Anti-freezing protection: Check ambient conditions, water circulation, and whether the unit has been properly drained or protected.

Cleaning and Maintenance

Routine Cleaning

Disconnect electrical power before cleaning. Wipe the cabinet with a damp cloth only. Detergents and household cleaning products may damage the casing finish and its protective properties.

Clean the rear evaporator carefully with a vacuum. Avoid bending the fins or using tools that could puncture the heat exchanger.

Annual Professional Service

At least once each year, a qualified person should perform safety checks, inspect the electrical wiring, verify grounding and bonding, examine the pressure-gauge condition, and check for signs of refrigerant loss.

Winterizing

1. Disconnect electrical power before seasonal shutdown.
2. Close or isolate the water circuit as appropriate for the pool system.
3. Unscrew the water inlet pipe fitting so water can drain from the heat pump.
4. Use the lowest-point drain arrangement to empty connected pipework.
5. Drain condensate from the chassis.
6. When ambient temperature is below 41°F, remove the rubber plug from the chassis drain hole to maintain free drainage.
7. Cover the unit body when it will remain unused.

Do not leave water inside the machine during freezing weather. Frozen water can damage the titanium heat exchanger. If the unit must operate below 32°F, the water pump should run continuously to reduce the risk of freezing inside the heat pump.

Pros and Cons

Pros

• High stated heating capacity for larger pool systems.
• Titanium heat exchanger for the pool-water circuit.
• Heating, cooling, and automatic operating modes.
• Timer, manual defrost, temperature-unit selection, and status monitoring.
• Detailed fault and protection reporting through the controller.
• Outdoor-rated IPX4 construction.

Cons

• Requires permanent electrical installation by a qualified electrician.
• Needs a correctly sized circulation pump, filter, bypass arrangement, and supported piping.
• Requires substantial clearance for airflow and service access.
• Seasonal draining is essential in freezing conditions.
• Refrigerant, electrical, sensor, and sealed-system faults require professional service.