NEWTRY 5.5KW 220V Electric SPA and Pool Heater Instruction Manual

1. Safety Information

Please read all safety instructions carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, property damage, or serious injury.

• Electrical Connection: This heater requires a 220V, 2-phase hardwired connection. A dedicated 2P GFCI breaker is mandatory for safety. Always hire a licensed electrician for circuit setup and wiring to ensure compliance with local electrical codes.
• Wiring: Use copper wire with a minimum gauge of 10AWG for the 5.5KW model.
• Plumbing: Use standard SCH40 1.5" PVC pipe for all plumbing connections. Insufficient water flow due to smaller pipe sizes can damage the unit.
• Circulation Pump: A circulation pump with a minimum of 1HP is required for proper operation.
• Water Quality: Do not use this heater in salt water or highly chlorinated pools, as this may cause corrosion to the heating element and void the warranty.
• Installation Location: Install the heater in a dry, well-ventilated area, protected from direct weather exposure. Ensure adequate clearance around the unit for maintenance and airflow.

2. Product Overview

The NEWTRY 5.5KW Electric SPA and Pool Heater is designed to maintain a comfortable water temperature in your SPA, hot tub, or above-ground pool. It features a digital touchscreen for precise temperature control and a durable 316 stainless steel heating element.

Key Features:

• LCD Touchscreen: Provides real-time water temperature display and allows for accurate temperature setting.
• Auto Heating Function: Intelligently maintains the preset temperature by pausing when reached and restarting if the water cools, optimizing energy use.
• 316 Stainless Steel Heating Tubes: Ensures quick heating, high-temperature performance, and enhanced durability.

Image: Close-up of the heater's digital touchscreen interface, illustrating temperature display and control options.

Image: Diagram illustrating the automatic heating cycle, showing how the heater maintains a stable temperature.

Image: Detailed view of the 316 stainless steel heating elements, emphasizing their robust construction.

3. Setup

3.1 Electrical Connection

The heater operates on 220V. In North America (110V standard), this typically requires one ground wire and two live wires. A 2P GFCI breaker is required for safety. It is essential to consult a licensed electrician for proper installation.

• Ensure the main power supply to the installation area is turned off before beginning any wiring.
• Connect the L1 and L2 wires from your power source to the corresponding terminals on the heater's terminal block.
• Connect the ground (GND) wire to the designated ground terminal.
• Verify all connections are secure and properly insulated.

Image: Electrical wiring diagram showing connections for L1, L2, and ground, emphasizing the need for a 2P GFCI breaker.

3.2 Plumbing Connection

The heater is fitted with 1.5" PVC fittings and requires standard SCH40 1.5" PVC pipe for plumbing connections.

• Connect the water inlet and outlet ports of the heater to your pool/spa plumbing system using SCH40 1.5" PVC pipes.
• Ensure all connections are watertight using appropriate sealants and fittings.
• Install the heater in line with your circulation pump. The circulation pump must be rated at 1HP or greater.
• Verify that water flows freely through the heater once plumbing is complete and before powering on the unit.

Image: Plumbing diagram illustrating the correct connection of the heater with a circulation pump and 1.5" PVC pipes.

4. Operating Instructions

4.1 Powering On/Off

After ensuring all electrical and plumbing connections are secure and water is flowing, turn on the dedicated GFCI breaker to supply power to the heater. The digital display will illuminate.

4.2 Setting Temperature

• Press the 'SET' button on the digital display. The current set temperature will flash.
• Use the 'Up' (▲) and 'Down' (▼) arrow buttons to adjust the desired water temperature.
• Once the desired temperature is set, the display will revert to showing the real-time water temperature after a few seconds.

4.3 Temperature Unit Toggle (℃/℉)

To switch between Celsius (℃) and Fahrenheit (℉), press and hold the 'SET' button for a few seconds until the unit changes.

4.4 Auto Heating Function

The heater will automatically activate when the water temperature falls below your set point and deactivate once the set temperature is reached. This intelligent system ensures consistent comfort and energy efficiency.

4.5 Indicator Lights

The digital display includes indicator lights for 'Flow' and 'Heating'. The heater operates correctly only when both indicators are ON, signifying proper water flow and active heating.

5. Maintenance

Regular maintenance ensures optimal performance and longevity of your heater.

• Cleaning: Periodically inspect the heater's exterior for dust or debris. Clean with a soft, damp cloth. Do not use abrasive cleaners or solvents.
• Water Chemistry: Maintain proper water chemistry in your pool or spa. Imbalanced water can lead to scale buildup on the heating elements, reducing efficiency and lifespan.
• Flow Inspection: Regularly check for any obstructions in the plumbing system that might impede water flow through the heater.
• Winterization: If the heater will not be used during freezing temperatures, it must be properly drained to prevent damage from ice expansion. Consult a pool professional for specific winterization procedures for your setup.

6. Troubleshooting

If you encounter issues with your heater, refer to the following common problems and solutions:

• Heater Not Turning On:
  • Check if the GFCI breaker is tripped. Reset if necessary.
  • Ensure the power supply is active.
  • Verify all electrical connections are secure.
• Heater Not Heating:
  • Check if both 'Flow' and 'Heating' indicators are ON. If not, there might be a flow issue or a heating element problem.
  • Ensure the circulation pump is operating correctly and providing sufficient water flow (≥1HP).
  • Verify the set temperature is higher than the current water temperature.
  • Check for air locks in the plumbing system.
• Error Codes: If the digital display shows an error code, consult the manufacturer's support for specific interpretations and solutions.
• Water Not Reaching Desired Temperature:
  • Ensure the pool/spa capacity is within the suggested limits for the 5.5KW model (700 Gals).
  • Consider ambient temperature and pool insulation, which can affect heating time.

For issues not covered here, or if troubleshooting steps do not resolve the problem, contact NEWTRY customer support or a qualified technician.

7. Specifications

The following table outlines the technical specifications for the NEWTRY 5.5KW SPA Heater:

Image: Comparative specifications table for different NEWTRY heater models.

8. Warranty and Support

For warranty information, technical support, or service inquiries, please contact NEWTRY customer service. Keep your purchase receipt and model number handy for faster assistance.

Manufacturer: NEWTRY

Contact: Refer to the NEWTRY official website or your purchase documentation for current contact information.