REMKO RBW 301 PV-S Hot Water Heat Pump User Manual

1. Introduction

Thank you for choosing the REMKO RBW 301 PV-S Hot Water Heat Pump. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your new appliance. Please read this manual thoroughly before installation and use, and keep it for future reference.

The RBW 301 PV-S is a high-quality hot water heat pump designed for efficient domestic hot water production. It utilizes the free thermal energy from ambient air, significantly reducing energy consumption. This model also features an integrated auxiliary heat exchanger, allowing for connection to a solar thermal system or another heat generator, further enhancing energy savings and environmental protection.

Key Features:

• Efficient hot water production up to 60 °C.
• Integrated auxiliary heat exchanger for solar or external heat sources.
• Cold water inlet technology to prevent mixing during high draw-off.
• Excellent insulation for minimal heat loss.
• Effective defrost function for low suction temperatures.
• Compact design with low installation height due to 45° angled air connections.
• Enamelled hot water tank with 300 liters nominal capacity (280 liters net).
• Quiet operation with rolling piston compressor.
• Double corrosion protection with magnesium anode.
• PV contact for increased self-consumption of electricity.

2. Safety Instructions

Always observe the following safety precautions to prevent injury, damage, or malfunction. Installation, maintenance, and repairs must only be carried out by qualified and authorized personnel.

• Read this entire manual before attempting any installation, operation, or maintenance.
• Ensure the appliance is installed in accordance with all local and national regulations and standards.
• Disconnect the power supply before performing any service or maintenance.
• Do not operate the unit if it is damaged or not functioning correctly.
• Keep children and unauthorized persons away from the appliance.
• Ensure proper ventilation around the unit as specified in the installation guidelines.
• Do not block air inlets or outlets.
• Protect the unit from freezing temperatures.

3. Product Overview and Components

The REMKO RBW 301 PV-S is a compact, floor-standing unit designed for efficient hot water generation.

Figure 3.1: Exterior view of the REMKO RBW 301 PV-S Hot Water Heat Pump. The unit features a sleek, cylindrical design with a control panel located on the top section.

Figure 3.2: Internal view of the REMKO RBW 301 PV-S, showing the main hot water tank, the integrated heat pump components (compressor, evaporator, condenser), and the auxiliary heat exchanger coil at the bottom for solar or external heat source connection.

Main Components:

• Hot Water Tank: Enamelled steel tank with 300 liters nominal capacity (280 liters net).
• Heat Pump Unit: Integrated unit with rolling piston compressor, evaporator, and condenser for air-to-water heat transfer.
• Auxiliary Heat Exchanger: External tube register for connection to solar thermal systems or other heat generators.
• Electric Heater: Supplementary 1.5 kW electric heater for rapid heating or backup.
• Control Unit: Digital display and buttons for setting parameters and monitoring operation.
• Air Ducts: Two D=150 mm connections (inlet and outlet) angled at 90° for air circulation.
• Magnesium Anode: Provides double corrosion protection for the tank.
• Temperature Sensors: Two memory sensors for precise temperature measurement.

4. Installation and Setup

Installation of the REMKO RBW 301 PV-S must be performed by a certified professional in accordance with all applicable local and national codes and regulations.

4.1 Site Selection:

• Choose a location with sufficient space for installation and maintenance.
• Ensure the floor can support the weight of the unit (142 kg empty, significantly more when full).
• The room should have adequate air volume or be connected to an external air source via ducts.
• Avoid locations prone to freezing temperatures.

4.2 Air Duct Connection:

The unit requires air intake and exhaust. Connect appropriate ducts (plastic, aluminum, or galvanized steel sheet) with a diameter of 150 mm to the angled connections on the unit. Ducts can extend up to 6 meters.

4.3 Water Connections:

• Connect the cold water supply to the designated inlet. The cold water inlet technology ensures efficient layering within the tank.
• Connect the hot water outlet to your domestic hot water system.
• Connect the auxiliary heat exchanger to your solar thermal system or other heat generator as per the system's design.

4.4 Electrical Connection:

Connect the unit to a suitable electrical supply. Ensure the electrical installation complies with all local regulations. The unit includes a PV contact for integration with photovoltaic systems to optimize self-consumption.

5. Operating Instructions

The REMKO RBW 301 PV-S is designed for user-friendly operation. Once properly installed, the unit will automatically maintain the desired hot water temperature.

5.1 Control Panel:

The digital control panel allows you to monitor the system status and adjust settings.

Figure 5.1: Close-up of the REMKO RBW 301 PV-S control panel. The display shows the current water temperature (e.g., 55.0 °C) and various operational indicators. Buttons below the display allow for mode selection and temperature adjustment.

5.2 Setting Water Temperature:

Use the control panel to set your desired hot water temperature. The unit can heat water up to 60 °C. Refer to the detailed operating manual (if provided separately by manufacturer) for specific button functions and menu navigation.

5.3 PV Contact and Solar Integration:

The integrated PV contact allows the heat pump to prioritize operation when your photovoltaic system is generating excess electricity, maximizing self-consumption and reducing reliance on grid power. The control unit also manages the switching valve for solar heating, ensuring optimal use of solar energy.

5.4 Auxiliary Functions:

The unit can also provide air conditioning and dehumidification for secondary rooms when properly ducted, utilizing the heat pump's cooling cycle.

6. Maintenance

Regular maintenance ensures the longevity and efficient operation of your REMKO RBW 301 PV-S heat pump. Always disconnect power before performing any maintenance.

6.1 Cleaning:

• Periodically clean the exterior of the unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.
• Ensure air inlets and outlets are free from dust and obstructions.

6.2 Anode Inspection:

The tank is protected by a magnesium anode. This anode should be inspected periodically (e.g., annually) by a qualified technician and replaced if significantly depleted to ensure continued corrosion protection.

6.3 Defrost Function:

The unit features an effective defrost function to prevent ice buildup on the evaporator at low ambient temperatures. This function operates automatically and requires no user intervention.

6.4 Professional Servicing:

It is recommended to have the unit professionally serviced at regular intervals (e.g., every 1-2 years) to ensure optimal performance and identify any potential issues.

7. Troubleshooting

This section provides basic troubleshooting steps for common issues. For more complex problems, contact a qualified service technician.

8. Technical Specifications

The following table outlines the key technical specifications for the REMKO RBW 301 PV-S Hot Water Heat Pump.

Figure 8.1: Energy label for the REMKO RBW 301 PV-S, indicating an energy efficiency class of A+ for hot water heating, a sound power level of 57 dB, and annual energy consumption.

9. Warranty Information

REMKO products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or contact your authorized REMKO dealer. Keep your proof of purchase for warranty claims.

10. Customer Support

Should you require technical assistance, spare parts, or have any questions regarding your REMKO RBW 301 PV-S Hot Water Heat Pump, please contact your local authorized REMKO dealer or the REMKO customer service department. When contacting support, please have your model number (RBW 301 PV-S) and serial number (if applicable) ready.

For more information, visit the official REMKO website or consult your local distributor.