Bestway Flowclear 4kW Pool Heater

Important Safety Instructions

WARNING

Electrical Specifications: 220-240V~50Hz, 1PH, 5.33A, 1200W, IPX5

At 26°C Air and 26°C Water Condition:

• Heating Capacity: 4.4kW
• Power Input: 0.92kW
• COP: 4.8
• Noise Level (1M): 55dB(A)
• Max. Suction Pressure: 2.5MPa
• Max. Discharge Pressure: 4.2MPa
• Max. Allowable Pressure: 4.4MPa
• Refrigerant: R32 (0.35kg)
• GWP: 675
• CO2 Equivalent: 0.236T

If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or similarly qualified persons to avoid a hazard.

This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure they do not play with the appliance.

The appliance shall be placed 2 meters away from the pool. The appliance cannot be used while people are inside the pool.

The appliance is to be supplied by an isolating transformer or supplied through a residual current device (RCD) having a rated residual operating current not exceeding 30 mA. Extension cords cannot be used.

If instructions are missed, please contact Bestway or visit www.bestwaycorp.com.

CAUTION: Ensure all installation or service work is carried out only by licensed personnel. This is hermetically sealed equipment, leakage tested, and contains fluorinated Greenhouse gas. The appliance shall be installed in accordance with national wiring regulations.

Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.

The appliance shall be stored in a room without continuously operating ignition sources (e.g., open flames, operating gas or electric heaters).

Do not pierce or burn. Be aware that refrigerants may not have an odor. Compliance with national gas regulations shall be observed. Keep ventilation openings clear of obstructions. Servicing shall be performed only as recommended by the manufacturer. The appliance shall be stored to prevent mechanical damage.

Qualification of Workers:

Any person working on or breaking into a refrigerant circuit must hold a current valid certificate from an industry-accredited assessment authority. Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring skilled personnel shall be carried out under the supervision of a person competent in the use of flammable refrigerants.

Information on Servicing:

Checks to the area: Prior to work on systems containing flammable refrigerants, safety checks are necessary to minimize the risk of ignition. Work procedures must be controlled to minimize the risk of flammable gas or vapor. General work area: Staff must be instructed on the work being carried out. Confined spaces should be avoided.

Checking for presence of refrigerant: Use an appropriate refrigerant detector. Ensure leak detection equipment is suitable for applicable refrigerants (non-sparking, sealed, intrinsically safe).

Presence of fire extinguisher: Have a dry powder or CO2 fire extinguisher available for hot work.

No ignition sources: Keep all possible ignition sources (including smoking) far away. Display "No Smoking" signs.

Ventilated area: Ensure the area is open or adequately ventilated before breaking into the system or conducting hot work. Ventilation should continue during work.

Checks to the refrigerating equipment: Electrical components must be fit for purpose and correct specification. Follow manufacturer's guidelines. Check ventilation machinery, secondary circuits (if used), and equipment markings.

Checks to electrical devices: Perform initial safety checks and component inspections. If a fault compromises safety, do not connect the electrical supply until rectified. Temporary solutions must be reported. Initial safety checks include: discharging capacitors safely, ensuring no live electrical components are exposed, and checking earth bonding continuity.

Repairs to sealed components: Disconnect all electrical supplies before removing sealed covers. If power is necessary, use permanent leak detection. Ensure casing is not altered in a way that affects protection (e.g., cable damage, incorrect connections, seals, glands). Mount apparatus securely. Ensure seals prevent ingress of flammable atmospheres. Use manufacturer-specified replacement parts.

Repair to intrinsically safe components: Do not apply permanent inductive or capacitance loads that exceed permissible voltage/current. Intrinsically safe components can be worked on live in a flammable atmosphere. Test apparatus must be correctly rated. Replace components only with manufacturer-specified parts.

Safety Procedures for Refrigerants

Cabling:

Check cabling for wear, corrosion, pressure, vibration, sharp edges, and other adverse environmental effects, including aging and continual vibration.

Detection of flammable refrigerants:

Do not use potential ignition sources for leak detection. Halide torches are prohibited. Electronic leak detectors are acceptable, but sensitivity may need recalibration for flammable refrigerants. Ensure detectors are not ignition sources and are suitable for the refrigerant used. Leak detection fluids are also suitable, but avoid those containing chlorine.

If a leak is suspected, extinguish all naked flames. If brazing is required for a leak, recover or isolate all refrigerant.

Removal and evacuation:

Use conventional procedures for breaking into the refrigerant circuit. For flammable refrigerants, follow best practices:

• Remove refrigerant.
• Purge the circuit with inert gas (optional for A2L).
• Evacuate (optional for A2L).
• Purge with inert gas (optional for A2L).
• Open the circuit by cutting or brazing.

Recover refrigerant into correct cylinders. For appliances with flammable refrigerants (other than A2L), purge with oxygen-free nitrogen. Compressed air or oxygen must not be used for purging. Repeat purging until no refrigerant remains. Vent the system to atmospheric pressure before brazing.

Ensure vacuum pump outlets are not near ignition sources and ventilation is available.

Charging procedures:

Ensure no contamination of different refrigerants. Use short hoses. Keep cylinders in appropriate positions. Earth the system before charging. Label the system when charging is complete. Do not overfill cylinders. Pressure-test the system before recharging. Leak-test upon completion and before commissioning.

Decommissioning:

Technicians must be familiar with the equipment. Recover refrigerants safely. Take oil and refrigerant samples if analysis is required. Ensure electrical power is available. Familiarize with equipment, isolate electrically, ensure mechanical handling equipment, PPE, and correct recovery equipment/cylinders are available. Pump down the system if possible. If vacuum is not possible, use a manifold. Ensure cylinders are on scales before recovery. Operate recovery machine per instructions. Do not overfill cylinders (max 80% liquid charge). Do not exceed cylinder working pressure. Promptly remove equipment and close isolation valves. Recovered refrigerant must not be charged into another system unless cleaned and checked.

Labelling:

Label equipment as de-commissioned and emptied of refrigerant, including date and signature. For appliances with flammable refrigerants, ensure labels state this.

Recovery:

When removing refrigerant for servicing or decommissioning, recover it safely. Use appropriate recovery cylinders. Ensure correct number of cylinders are available and designated for the refrigerant. Cylinders must have a pressure-relief valve and shut-off valves. Evacuate and cool empty cylinders before recovery. Recovery equipment must be in good working order, with instructions, and suitable for all refrigerants. Use calibrated weighing scales and leak-free hoses. Check equipment is in satisfactory working order and electrical components are sealed. Return recovered refrigerant to the supplier with a waste transfer note. Do not mix refrigerants. Evacuate compressors/oils to acceptable levels before returning them.

Setup

Check List:

Consult the parts list in the manual to check included parts. Verify components match the purchased model. For damaged or missing parts, visit bestwaycorp.com/support.

Choose the Correct Location:

The Pool Heater works best under the following conditions:

• Located 2 meters away from the pool and 1 meter from any objects.
• Always hold the Pool Heater upright. If transported horizontally, wait at least 24 hours before use to stabilize the liquid gas.
• Never install near shrubbery that could block the air inlet, as this reduces efficiency.
• Position the Pool Heater so the cold air expelled by the fan does not blow towards the pool.
• Place near a drain point. The air drawn in is cooled, which can cause condensation on the evaporator. High humidity can result in several liters of condensation per hour, sometimes mistaken for a water leak.

Installation

Follow instructions in this manual. Drawings are for illustration purposes only and may not reflect the actual product. They are not to scale.

Recommendations During Installation:

• The Filter Pump must be running to circulate water through the Pool Heater. It will not start if water is not circulating.
• If a chlorinator or other chemical equipment is installed, it must be placed after the Pool Heater to avoid high chemical levels that could damage the unit.
• Verify that the supply voltage matches the Pool Heater's operating voltage before connecting.
• Ensure the power plug is secure in the wall socket. A loose plug can cause electric shock, overheating, or fire.
• Never pull out the power plug during operation, as this can cause electric shock or fire due to overheating.
• Heat pump equipotential bonding terminal: It is recommended to have a qualified electrician connect the heat pump to an equipotential bonding terminal using a minimum 2.5mm² solid copper conductor.

Using the Pool Heater

1. Switch on the filter pump. Check for leaks and verify water is flowing to and from the swimming pool.
2. Connect power to the heat pump and press the On/Off button on the control panel. The unit will start up.
3. Upon first power-on, the Pool Heater checks water flow for 30 seconds, then starts if flow is adequate. It has a built-in 3-minute start-up delay to protect circuitry. The unit will restart automatically after this delay.
4. After a few minutes, check if the air blowing out is cooler.
5. When the filter pump is turned off, the unit should also turn off automatically.
6. Heating time depends on the initial water temperature and air temperature. Using a pool cover can significantly reduce heating time.

Display Indicators:

• When the Pool Heater is running or on standby, the display shows the water inlet temperature.
• HEATING LED: The icon is on when the Pool Heater is working.
• DEFROSTING LED: The icon flashes when the Pool Heater is defrosting.

Control Panel Buttons:

• ON/OFF BUTTON: Press to turn the heat pump on. The LED display shows the water setting temperature for 3 seconds, then the real water temperature. Press again to turn off the Pool Heater (display shows 'OFF').
• TEMPERATURE ADJUSTMENT BUTTON: Use the arrows [up arrow] / [down arrow] to adjust the desired water temperature. The temperature on the display flashes when set and saves after 3 seconds. The adjustment range is 15°C-40°C.
• CELSIUS/FAHRENHEIT TOGGLE: Hold for 3 seconds to switch between Celsius (°C) and Fahrenheit (°F).

Heating Rate Table

The water heating rate may change under the following conditions:

• If filtration system maintenance is not performed correctly, reducing flow rate.
• If the pool cover is not in position. Always keep the pool cover on when the Pool Heater is in use.
• In windy conditions, the heating rate will be reduced.
• Do not use the Pool Heater in rainy conditions, as it may not be able to warm the water.

The water temperature measured by an external thermometer may vary from the displayed temperature by approximately 2°C (3.6°F).

The Pool Heater was tested under limited conditions with ambient temperature 43°C (Dry bulb) and 26°C (Wet bulb).

General Data

Maintenance

CAUTION: Ensure the Pool Heater is unplugged before maintenance to avoid injury or death.

• Check the filtration system regularly. Sand and filter cartridges must be kept clean. Air must be eliminated to avoid low water flow, which could damage the Pool Heater and reduce performance.
• If the Pool Heater is not in operation for a long time (especially during winter), all water inside must be discharged.

Draining:

To drain the Pool Heater, consult the instructions inside the manual. Drawings are for illustration purposes only and may not reflect the actual product. They are not to scale.

Storage:

Remove all accessories; clean and dry all parts before storing. If parts are not completely dry, mold may result. Store the Pool Heater when the environment temperature is below 10°C/50°F. Store in a dry place with a moderate temperature between 10°C/50°F and 38°C/100°F. Keep away from heat sources, fire sources, and storage of flammable/explosive materials.

Warranty Terms

For information concerning warranty terms, visit our website at: www.bestwaycorp.com.

Error Codes

Cleaning

Improper cleaning can result in damage to the device.

Cleaning the heat pump:

• Cut off the power supply before cleaning.
• Do not use any aggressive cleaning agents.
• Do not use any sharp or metal objects (e.g., knives, hard putty knives).
• Do not use any cleaning brushes.
• Do not use a high-pressure cleaner.
• Clean the housing and ventilation grill with a slightly damp cloth.
• Dry the heat pump with a dry cloth.

Service

Disposal of Refrigerant

The Pool Heater contains refrigerant, which is a harmful substance. It must be disposed of properly at an approved collection point.

Wiring Diagram and Wire Color Code:

Wire Color Code:

• BL: BLUE
• BR: BROWN
• WH: WHITE
• RD: RED
• GN: GREEN
• BK: BLACK
• Y: YELLOW
• GR: GRAY

Component Abbreviations:

• WFS: Water flow switch
• MF: Motor Fan
• COMP: Compressor
• RC: Reactor
• WH: Inlet water temperature sensor
• BL: Ambient temperature sensor
• BK: Coil temperature sensor

A simplified wiring diagram is provided, showing connections for power input, reactor, motor fan, compressor, sensors (inlet temp, ambient temp, coil temp), and water flow switch.

Installation Diagrams

The following diagrams illustrate the installation process:

Diagram 1: Components

Shows the Pool Heater unit (1) and connection parts: hose adapter (2), hose clamps (3), union nut (4), gasket (5), and hose (6).

Diagrams 1-a & 1-b: Connection Methods

Illustrate two methods (A and B) for connecting the Pool Heater to the pool's filtration system, showing water flow from the pool return to the heater and from the heater to the pool supply. Arrows indicate water flow direction.

Diagram 2: Unit Connections

Depicts the electrical connections and water inlet/outlet ports on the Pool Heater unit.

Diagram 3: Control Panel Operation

Shows the control panel, the ON/OFF button, and the display changing from "OFF" to the set temperature.

Diagram 4: Temperature Adjustment

Illustrates using the temperature adjustment buttons ([up arrow], [down arrow]) and the Celsius/Fahrenheit toggle button.

Diagram 5: Unit Mounting

Shows how to attach the Pool Heater to a stable, level surface using mounting feet.