DOEL CIP-21SE
DOEL Swimming Pool Heat Pump User Manual
Model: CIP-21SE
1. Introduction
This manual provides essential information for the safe and efficient operation of your DOEL 72000 BTU Full DC Inverter Swimming Pool Heat Pump. Designed for both above-ground and in-ground pools up to 15,000 gallons, this 21kW heat pump offers advanced heating and cooling capabilities with smart control features. Please read this manual thoroughly before installation and use, and retain it for future reference.

Image: The DOEL Swimming Pool Heat Pump, a black rectangular unit with a circular fan grille, shown alongside a smartphone displaying its control application. This illustrates the product's design and smart control feature.
2. Safety Information
Always observe the following safety precautions to reduce the risk of fire, electric shock, or injury.
- Electrical Safety: Ensure the unit is connected to a properly grounded 220-240V power supply. All electrical work must be performed by a qualified electrician and comply with local codes.
- Installation: Install the heat pump in a well-ventilated area, away from flammable materials. Maintain adequate clearance around the unit for proper airflow.
- Water Connection: Ensure all water connections are secure and leak-free before operating the unit.
- Children and Pets: Keep children and pets away from the unit during operation.
- Maintenance: Disconnect power before performing any maintenance or cleaning.
- Refrigerant: This unit uses R32 refrigerant. Servicing involving refrigerant must be performed by certified personnel.
3. Product Features
The DOEL Swimming Pool Heat Pump incorporates advanced technology for efficient and convenient pool temperature management.
- Powerful Variable Speed Heat Pump: 21kW capacity, suitable for pools up to 15,000 gallons.
- R32 Refrigerant and Titanium Heat Exchanger: Enhances heating efficiency and environmental friendliness.
- Multiple Operating Modes: Offers various modes including silent mode for reduced noise levels (56 dB during normal operation).
- Smart Control Panel with WiFi Connectivity: Remote control via a mobile app for flexible management.
- Energy-efficient and Cost-effective: Advanced technology for optimal pool temperatures with reduced energy consumption.
- Heating & Cooling Functionality: Capable of both heating and cooling your pool water.

Image: An infographic highlighting key features of the DOEL Inverter Heat Pump, including 72000 BTU heating capacity, COP range of 15.8-6.8, suitability for 15000-gallon pools, heating & cooling functions, app control, and a titanium heat exchanger.

Image: A visual representation of the heat pump's high efficiency and durability, showcasing a high-end Mitsubishi Compressor, a DC Inverter Fan, and emphasizing a high Coefficient of Performance (COP) up to 16.
4. Setup and Installation
4.1 Unpacking and Inspection
Carefully remove the heat pump and all accessories from the packaging. Inspect for any shipping damage. Contact your retailer immediately if any damage is found.

Image: The DOEL heat pump displayed with its accompanying installation and operation manual, along with various accessories including hoses, adapters, and mounting pads.
4.2 Placement
Place the heat pump on a solid, level surface. Ensure adequate clearance around the unit for proper airflow (refer to the manual for specific distances). Avoid placing it in direct sunlight or areas with poor ventilation.
4.3 Water Connections
Connect the heat pump to your pool's filtration system. The unit typically connects after the filter and before any chemical feeders. Ensure all connections are tight to prevent leaks.

Image: A display of the various adapters and fittings included with the heat pump, such as 1.25" & 1.5" hose adapters, 4560 pool hose conversion adapters, and 1.5" PVC plumbing fittings, facilitating connection to different pool systems.
4.4 Electrical Connection
The heat pump requires a single-phase 220-240V power connection. It has terminals for hot (L), neutral (N), and ground (G). If your electrical system has two hot lines, a neutral line, and a ground line, connect Hot line 1 to L, Hot line 2 to N, and the ground line to G. The remaining neutral line does not need to be connected for 220V operation. Always consult a qualified electrician for electrical installation.

Image: A detailed view of the power connection panel on the heat pump, illustrating how to connect the power cord to the L1, L2, P1, and P2 terminals. This image also shows the connection point for the water pump to enable synchronized operation.
4.5 Initial Start-up
After all connections are secure, turn on the pool pump to ensure water flow through the heat pump. Then, switch on the power to the heat pump. Follow the operating instructions to set your desired temperature.
5. Operating Instructions
5.1 Control Panel Operation
The heat pump is equipped with an intelligent control panel for direct adjustments.

Image: A close-up view of the heat pump's digital control panel, showing the current temperature (88°F) and other operational indicators, allowing for direct user interaction.
5.2 WiFi Smart Control
Connect the heat pump to your home WiFi network to enable remote control via a mobile application. This allows you to manage settings, monitor status, and adjust schedules from your smartphone.
- Download App: Search for the official DOEL app on your smartphone's app store.
- Pair Device: Follow the in-app instructions to pair your heat pump with your mobile device.
- Remote Functions: Use the app to turn the unit ON/OFF, set desired temperatures, select operating modes, and configure timers.

Image: The DOEL heat pump positioned next to a pool, with a hand holding a smartphone displaying the WiFi control interface. The app shows options for ON/OFF, temperature setting, mode selection, and timer functions, indicating comprehensive remote control capabilities.
5.3 Operating Modes
The heat pump offers multiple operating modes to suit your needs:
- Heating Mode: Heats the pool water to the desired temperature (range: 47-104°F).
- Cooling Mode: Cools the pool water to the desired temperature (range: 47-82°F).
- Auto Mode: Automatically switches between heating and cooling to maintain the set temperature.
- Silent Mode: Reduces fan speed and compressor output for quieter operation, ideal for nighttime.
- Powerful Mode: Maximizes heating/cooling output for faster temperature changes.
- Defrost Mode: Automatically activates in cold conditions to prevent ice buildup on the evaporator coil.

Image: The DOEL heat pump shown with visual indicators for its heating and cooling capabilities. It specifies a heating temperature range of 47-104°F and a cooling temperature range of 47-82°F, demonstrating its versatility in temperature control.

Image: A graphic displaying icons for the different operating modes of the heat pump, including Heating Mode, Auto Mode, Powerful Mode, Silent Mode, and Defrost Mode, indicating the range of functionalities available to the user.
5.4 Low Noise Operation
The heat pump is designed for quiet operation, with a noise level of approximately 56 decibels during normal working conditions. Silent mode can further reduce operational noise.

Image: The DOEL heat pump shown next to a graphic illustrating its low noise output. The graphic compares 56dB (the unit's operating noise) to other common sounds like a breeze (0-20dB) and ambient discussion (40-60dB), highlighting its quiet performance.
6. Maintenance
Regular maintenance ensures the longevity and efficient performance of your heat pump.
- Clean Coils: Periodically inspect and clean the evaporator and condenser coils to remove debris, leaves, and dirt. Use a soft brush or vacuum.
- Check Airflow: Ensure that the area around the heat pump is clear of obstructions to maintain proper airflow.
- Water Chemistry: Maintain proper pool water chemistry to prevent corrosion and scale buildup in the heat exchanger.
- Winterization (Extended Non-Use): When not in use for an extended period, especially during winter, drain the water from the titanium heat exchanger to prevent freezing damage.

Image: A close-up view of the drainage point on the heat pump, labeled 'Drainage'. This port is used to drain water from the titanium heat exchanger when the unit is not in use for extended periods, preventing potential damage from freezing.
7. Troubleshooting
This section addresses common issues you might encounter with your heat pump. For problems not listed here, please contact customer support.
- Unit Not Turning On:
- Check power supply and circuit breaker.
- Ensure the pool pump is running and water is flowing through the heat pump.
- Verify all electrical connections are secure.
- Insufficient Heating/Cooling:
- Check the set temperature on the control panel or app.
- Ensure evaporator and condenser coils are clean and free of obstructions.
- Verify proper water flow rate through the unit.
- Check pool size against the unit's capacity (up to 15,000 gallons).
- Unusual Noises:
- Inspect the fan for any obstructions.
- Ensure the unit is placed on a stable, level surface.
- If a persistent mechanical noise, contact customer support.
- Control Panel/App Issues (e.g., 'beeping', 'hard to set timer'):
- Restart the unit by cycling power.
- Ensure the mobile app is updated to the latest version.
- Re-pair the device with the app if connectivity issues persist.
- Consult the specific app instructions for detailed troubleshooting.
- Error Codes: Refer to the main product manual (physical copy) for a list of specific error codes and their corresponding solutions.
8. Specifications
Detailed technical specifications for the DOEL Swimming Pool Heat Pump (Model: CIP-21SE).

Image: The DOEL heat pump with its dimensions clearly marked: 35.2 inches (89.6 cm) in length, 14.3 inches (36.3 cm) in width, and 25.2 inches (64.1 cm) in height. The unit's weight is also indicated as 145 pounds.
| Specification | Value |
|---|---|
| Brand | DOEL |
| Model Number | CIP-21SE |
| Heating Capacity | 72000 BTU (21kW) |
| Recommended Pool Volume | Up to 15,000 gallons |
| Power Supply | 220-240 Volts, Single Phase |
| Refrigerant | R32 |
| Heat Exchanger | Titanium |
| Noise Level | ≤ 56 dB(A) |
| Heating Temperature Range | 47-104°F |
| Cooling Temperature Range | 47-82°F |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Product Dimensions (L x W x H) | 35.2 x 14.3 x 25.2 inches |
| Item Weight | 143 pounds |
| Manufacturer | DOEL |
9. Warranty and Support
For warranty information, please refer to the warranty card included with your product or contact DOEL customer service directly. DOEL is committed to providing reliable customer support for any inquiries or issues you may encounter.
Customer Support: For technical assistance, troubleshooting, or warranty claims, please contact DOEL customer support through the contact information provided in your product packaging or on the official DOEL website.
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