Duratech Sun Spring Heat Pump Manual
Innovative Pool Products
Product Overview
The Duratech Sun Spring heat pump is designed for efficient and reliable heating of swimming pools. This manual provides essential information for installation, operation, and maintenance.
Specifications
SUN05 / SUN08
| Unit | Advised Pool Volume* (m³) | Operating Air Temperature (°C) | Heating Capacity (kW) | Consumed Power (kW) | COP |
|---|---|---|---|---|---|
| SUN05 | 12 | 4~40 | 5.02 | 0.686 | 7.31 |
| SUN08 | 25 | 4~40 | 7.44 | 1.01 | 7.31 |
SUN12
| Unit | Advised Pool Volume* (m³) | Operating Air Temperature (°C) | Heating Capacity (kW) | Consumed Power (kW) | COP |
|---|---|---|---|---|---|
| SUN12 | 38 | 4~40 | 12.2 | 2.068 | 5.9 |
* Advised pool volume for an entirely insulated pool, with cover, free from wind and exposed to the sun.
Safety Information
- Always keep the unit upright. If tilted, wait 24 hours before starting.
- Place the unit on a flat, solid base. Tilting up to 3° is acceptable.
- Do not drop the heat pump.
- The heat pump must be installed outdoors.
- Verify that the voltage corresponds to the local mains voltage before connecting.
- Do not pull electrical cables, sensors, or tubing with excessive force.
- Do not wrap cables around the heat pump.
- Do not use the heat pump with a transformer.
- If the unit is damaged during transportation, contact a service center.
- Ensure water connections are properly locked before operation.
- Never insert objects into the fan.
- The evaporator fins must not be damaged.
- This heat pump is not intended for use by persons with reduced physical, sensory, or mental capabilities, unless supervised.
- Children should be supervised to ensure they do not play with the heat pump.
- Disconnect electricity when the unit is not in use and before cleaning.
- Servicing should only be performed by qualified personnel.
- If the supply cord is damaged, it must be replaced by the manufacturer or a qualified service agent.
- Contact your dealer if the heat pump is not working properly.
- Ensure a circuit breaker is installed for the unit.
- The unit has an over-load protection system with a 3-minute restart delay.
- Condensate water is not suitable for potable water connections.
Preparation for Use
4.1 Typical Set-up
The heat pump should be located approximately 2 meters (recommended) away from the swimming pool to minimize heat loss from the piping. A bypass valve is recommended for easier maintenance. Water treatment should be added downstream of the heat pump. Condensation is normal and can be diverted with a vinyl tube if desired. Always keep the heat pump upright; if tilted, wait 24 hours before operation.
Diagram Description: A diagram illustrates the typical setup of a heat pump connected to a swimming pool. It shows the heat pump, water treatment system, filter, bypass valve, water pump, and water supply, with piping connecting them. An arrow indicates a recommended 2-meter distance between the heat pump and the swimming pool.
4.2 Water Connection Kit
The kit includes parts for connecting the water pipes. There are four possible connection options using clamping, thread, or glue connections, accommodating 50mm (metric) and 48mm (imperial) pipes.
Diagram Description: An exploded view shows the components of the water connection kit, labeled 1 through 6. Subsequent diagrams illustrate different connection methods: Clamping connection (parts 1, 2, 3), Thread connection (parts 2, 4), Glue connection (parts 1, 2, 5 for 50mm metric), and Glue connection (parts 1, 2, 6 for 48mm imperial).
4.3 Installation of the Tubing
Piping should be installed according to the chosen connections using appropriate glue for swimming pool use. Ensure the piping to and from the heat pump fits the connections.
Diagram Description: Two diagrams show typical water pipe connections: OUT (from heat pump to water treatment system) and IN (from filter system to heat pump).
4.4 Electrical Wiring
Verify the voltage matches the unit's operating voltage. A timer can be installed between the heat pump and the RCD plug for automatic operation. Grounding the unit is essential for protection against short circuits. Test the RCD before use by pressing the RESET and TEST buttons.
Diagram Description: A diagram shows the electrical wiring of the heat pump, including the power supply, transformer, fuse, relays, compressor, fan, and display connections. Sensor connections (Te, Tc, Tin, Ta) are also indicated.
Operation and Use
6.1 Before Operation
Set the desired temperature using the arrow keys. The setting is stored automatically. You can switch between Celsius (°C) and Fahrenheit (°F) via the parameter menu (P02).
6.2 Initial Startup
Turn on the filter pump and check for water leaks. Connect the heat pump and switch it ON. The unit will start after the time delay. Allow the unit and pool pump to run 24 hours until the desired temperature is reached. The unit will automatically restart when the temperature drops by 0.5°C.
6.3 General Interface
The heat pump can be turned ON/OFF using the ON/OFF button. The display shows the current water temperature, desired temperature, heating status, and a flow bar indicating water volume. The heat pump performs best when the flow bar is in the green zone. The unit stops working if the air temperature is too low (below 3.5°C) or too high (above 40.5°C), or if the water flow is too low.
Diagram Description: The display interface is shown with indicators for Low air temperature, Pool temperature, High air temperature, Low flow, Flow bar, Set temperature, Defrosting, Heating, and control buttons (UP, DOWN, ON/OFF).
6.4 Parameter Interface
Access the parameter interface by pressing UP & DOWN simultaneously. Parameters can be adjusted by a qualified person to optimize heat pump efficiency. A complete list of parameters is available in section 6.5.
Diagram Description: The parameter interface display is shown, illustrating how to navigate through parameters (P01 to P11) and edit their values using the UP, DOWN, and ON/OFF buttons.
6.5 Parameter List
A table lists various parameters, including software version, Fahrenheit/Celsius setting, passwords, and sensor readings for ambient temperature (TA), water inlet temperature (TIN), evaporator temperature (TE), and liquid line temperature (TLI).
6.6 Error Interface
If an issue is detected, the heat pump may attempt to resolve it. If the issue persists, an error code (E01 to E04) will be displayed. The unit can only be restarted by unplugging the RCD. Contact a service center if the error continues.
Diagram Description: The display shows an error notification with an error code (e.g., E01) and the text 'Err'. Instructions are provided to press UP & DOWN to enter the error parameter interface.
6.7 Error Parameter Interface
This interface displays specific error codes and their corresponding names, such as Ambient temperature sensor error (EA), Evaporator temperature sensor error (EE), Water inlet temperature sensor error (Ein), and Liquid line temperature sensor error (EL). Press UP & DOWN to toggle between errors.
Diagram Description: The display shows an error code (e.g., E01) and an error name (e.g., EA). Instructions are provided to press UP & DOWN to toggle between errors.
6.8 Error List
This section details error codes, their descriptions, and the effect/action to take. For example, an Ambient temperature sensor error (EA) will cause the heat pump to stop working and can only be restarted by unplugging the RCD.
6.9 Troubleshooting Guide
This guide helps diagnose and resolve common problems such as the heat pump not running or insufficient heating. It lists potential causes and solutions, such as checking electricity, temperature settings, air flow, and error messages.
Important Safety Notes:
- DO NOT attempt adjustments inside the heater.
- Keep hands and hair clear of fan blades.
- Consult a dealer or professional if unfamiliar with pool systems.
- Read the installation and user guide before servicing.
- Do not start the heat pump until 24 hours after installation.
- Turn off power before attempting service or repair.
Wiring Diagrams
7.1 Wire Control Interface Diagram Sun Spring
This diagram illustrates the internal wiring of the control interface, including connections for power supply, transformer, fuses, relays, compressor, fan, display, and temperature sensors.
Diagram Description: A detailed schematic shows the electronic control board with labeled components and wiring connections for the compressor, fan, and various sensors (Evaporator Temp., Cond. Temp., Water In Temp., Ambient Temp.).
7.2 Piping Diagram and Definition Sun Spring
This diagram shows the refrigerant piping system of the heat pump, including the compressor, condenser, evaporator, TEVAP, TAMB, CAPILLARY, TLIQ, and strainer.
Diagram Description: A schematic illustrates the flow of refrigerant through the heat pump components: Compressor, Evaporator, Condenser, TEVAP, TAMB, CAPILLARY, TLIQ, and Strainer.
Maintenance and Inspection
Regularly check water inlet and drainage. Clean the pool filter to prevent damage. Ensure the area around the unit is spacious and well-ventilated. Clean the sides of the heat pump for efficient heat exchange. Check all operational processes and electrical connections. If the unit functions abnormally or emits a strange smell, arrange for repair. If the unit is stored for a long time, inspect for damage, clean evaporator fins, check the fan, connect water lines, turn on the filter pump, and restore electrical power.
8.1 Water Chemistry
Maintain proper swimming pool water balance within the following limits:
| Parameter | Min. | Max. |
|---|---|---|
| pH | 7.0 | 7.8 |
| Free Chlorine (mg/l) | 0.5 | 1.5 |
| Salt (g/l) | 8 |
Failure to maintain these limits may void the warranty. High concentrations of chemicals can damage the heat pump. Install water treatment equipment downstream of the heat pump.
Winterizing
To protect against freezing, drain the complete installation. Turn off electrical power, shut off the water supply, disconnect water inlet and outlet, and allow water to drain. Reconnect the water inlet and outlet loosely.
Note: Failure to winterize can cause damage and void the warranty.
9.1 Spring Startup
After winterizing, inspect the system, connect water unions firmly, turn on the filter pump, and restore electrical power to the heat pump.
Environment
Dispose of the heat pump at a designated recycling point for electrical and electronic equipment at the end of its life cycle to help preserve the environment.
Service
For service or information, contact your local dealer. For more information, visit www.duratech.be.
Warranty
Duratech warrants all parts against manufacturing defects for TWO years from the date of retail purchase. This warranty is limited to the first retail purchaser and is not transferable. It does not cover failures due to improper installation, operation, maintenance, abuse, accidents, or use of non-authorized parts. The manufacturer's liability is limited to repair or replacement of defective parts.
Limitation of Liability: Duratech disclaims all other warranties, expressed or implied, including fitness for a particular purpose and merchantability. Duratech expressly disclaims liability for consequential, incidental, indirect, or punitive damages.
Warranty Claims: For warranty claims, contact your dealer with proof of purchase, model number, serial number, and installation date.
