NIBE VVM 500 Indoor Module

Introduction

The NIBE VVM 500 is an indoor module designed for combination with NIBE air/water heat pumps to create a highly-efficient, flexible climate system for your home. It features a smart, user-friendly control system that provides efficient heating, cooling, and hot water with high performance. Installation is simple, as the module includes the water heater, electric additional heat, and self-regulating circulation pumps. Its smart technology allows users to control energy consumption and integrate it into a connected home, automatically adjusting the indoor climate for high comfort while being environmentally friendly.

• ? Combine with a NIBE air/water heat pump for an integrated system.
• ? Energy-saving smart technology with user-friendly control.
• ? Part of your smart home – control your comfort online using NIBE Uplink.

How the NIBE VVM 500 Works

The VVM 500 works in conjunction with a NIBE air/water heat pump to provide a complete heating installation. The air/water heat pump extracts energy from the outdoor air and converts it into heat for the indoor environment. The indoor module then distributes this heat and domestic hot water. The system covers most heating and hot water needs down to the heat pump's stop temperature. Below this temperature, the VVM 500 takes over heating. The VVM 500 is designed for easy installation with accessible pipe connections, making it suitable for the replacement market. It can also be supplemented with various accessories.

Compatible Air/Water Heat Pumps

The VVM 500 is compatible with a range of NIBE air/water heat pumps, including:

• F2040 Series: F2040-12, F2040-16
• F2050 Series: F2050-6, F2050-10
• F2120 Series: F2120-16 (3x400V), F2120-20 (3x400V)
• S2125 Series: S2125-8 (1x230V), S2125-8 (3x400V), S2125-12 (1x230V), S2125-12 (3x400V)
• F2300 Series: F2300-20
• NIBE SPLIT HBS 05: AMS 10-12/HBS 05-12, AMS 10-16/HBS 05-16
• NIBE SPLIT HBS 20: AMS 20-6/HBS 20-6, AMS 20-10/HBS 20-10

Note: Check the software version of compatible older NIBE air/water heat pumps as specified in the manual.

Design and Principle of Operation

The VVM 500 features intelligent control for efficient and easy operation, managing automatic shunt and circulation pumps. Current temperatures and set values are displayed clearly. The unit is insulated with polyurethane (PUR) for excellent heat insulation and has a white, powder-coated steel casing.

Principle of Operation: The system works by retrieving heat from the outdoor air via an air/water heat pump. Refrigerant circulates in a closed system, transferring heat from the outdoor air to the indoor module (VVM 500). This heat is then used for domestic hot water and the heating system.

System Connections (Diagram Description)

The VVM 500 has various connection points for system integration:

• XL1: Connection, heating medium flow line
• XL2: Connection, heating medium return line
• XL3: Connection, cold water
• XL4: Connection, hot water
• XL8: Connection, docking from heat pump
• XL9: Connection, docking to heat pump
• XL13: Connection, solar heating system supply line
• XL14: Connection, solar heating system return line
• XL18: Connection, docking in high temp
• XL19: Connection, docking out high temp
• XL30: Connection, expansion vessel
• XL39: Connection, docking pool

Transport, Storage, and Installation

Transport and Storage

The VVM 500 should be transported and stored vertically in a dry place. It can be carefully laid on its back when being moved into a building. ??

Supplied Components

The standard kit includes:

• Outside sensor
• Room sensor
• Current sensor
• Flow meter*
• Cable*
• Union nut*
• Copper pipe with flange to energy meter*
• D-rings

*Only applies to Norway. Local differences in the enclosed kit may occur; refer to the installer manual.

Installation and Positioning

• Place the VVM 500 on a solid indoor foundation capable of supporting its weight.
• The installation location must be frost-free. ?
• Due to potential water discharge from the safety valve for hot water, the installation space must have a floor drain. ? (Safety valve not enclosed).

Installation Area Requirements

A free space of 800 mm is required in front of the product for service access. 50 mm clearance is recommended at the sides, and 10-25 mm at the rear for cables and pipes.

Installation Details

Pipe Installation

All pipe installations must comply with applicable regulations and include necessary safety equipment for both heating medium and domestic hot water sides.

Equipment

The VVM 500 is equipped with a drain valve, reversing valve, climate-controlled automatic shunt with sensors, shunt valve, charge pump, and circulation pump.

Expansion Vessel

Dimensioned as 5% of the maximum system volume. A safety valve and expansion vessel (not enclosed) must be fitted.

Waste Water

Overflow from the safety valve must be routed to a suitable drain, ensuring the pipe is inclined and frost-proof. The overflow pipe should be visible and not placed near electrical components.

NIBE DIM

The system requires a low-temperature heating medium circuit. Recommended temperatures are 55°C supply and 45°C return at the lowest dimensioned outdoor temperature (DOT). The VVM 500 can handle up to 70°C. NIBE DIM is recommended for heat pump dimensioning.

Heating Medium

A climate system regulates indoor comfort using the VVM 500 and components like radiators or underfloor heating. Key installation points include:

• Install expansion vessel and pressure gauge (XL30).
• Install safety valve (recommended opening pressure 0.25 MPa / 2.5 bar).
• Install shut-off valves close to the VVM 500.
• Ensure sufficient flow by fitting a bypass valve or removing some thermostats if connecting to a system with thermostats on all radiators.

Cold and Hot Water

A mixer valve is required if the factory hot water setting is changed. Ensure incoming water is clean; a filter may be needed for private wells. More information is available at nibe.eu.

Installation Alternatives

The VVM 500 can be connected in multiple ways, adhering to current regulations and safety equipment requirements. Detailed options are available at nibe.eu.

Software Version Requirements

Compatible NIBE air/water heat pumps require specific minimum software versions for optimal performance with the VVM 500. The table below lists these requirements:

Technical Data and System Flows

Pump Capacity Diagrams

The document includes diagrams illustrating the available pressure for the circulation pump (GP1) and the charge pump (GP12) against flow rate (l/s) at different operating percentages (20%, 40%, 60%, 80%, 100%).

Pipe Dimensions and System Flows

Proper pipe dimensioning is crucial for managing system flows. The table below specifies minimum system flows and recommended pipe dimensions (DN and mm) for various NIBE air/water heat pumps to ensure adequate defrosting flow at 100% pump operation.

An undersized system can result in damage to the product and lead to malfunctions.

Electrical Installation

Electrical Connections

Electrical installation and service must be performed by a qualified electrician. Ensure the circuit breaker is used to cut power before servicing. Wiring must comply with current regulations.

General Points

• All electrical equipment (except sensors) is pre-connected.
• Disconnect the indoor module before testing house wiring insulation.
• If an earth-fault breaker is present, equip the VVM 500 with a separate one.
• The electrical wiring diagram is available in the Installer Manual.
• A screened three-core cable is used for communication.
• Communication and sensor cables should not be laid near high-current cables.
• Minimum cable area for communication/sensor cables is 0.5 mm² (e.g., EKKX or LiYY).

Power Connection

A disconnection option must be installed on the supply cable. Cable area must match the fuse rating. The included cable connects to terminal block X1 on the immersion heater board. Installations must follow current norms and directives.

Miniature Circuit-Breaker

The indoor module and its internal components are protected by miniature circuit breakers.

Temperature Limiter

This feature cuts power to the electric additional heat if the temperature reaches 90-100°C, requiring manual reset.

Settings

Electric Additional Heat – Maximum Output

The immersion heater can be set up to 9 kW, divided into four steps as detailed in the Installer Manual.

Emergency Mode

In emergency mode, only essential functions are active, reducing hot water capacity and disabling the load monitor. The supply line temperature remains fixed.

Maintenance

Regular Checks

Minimal maintenance is required, primarily checking safety valves. All essential components are accessible from the front for ease of service. Malfunctions are indicated by alarm texts on the display.

Functions

Control, General

Indoor temperature is influenced by factors like sunlight and household heat emissions. The climate system assists heating when outdoor temperatures drop. Control is based on the "floating condensing" principle, using outdoor and supply temperature sensors. A room sensor can also adjust for room temperature deviations.

Heat Production

Heat supply is regulated by a selected heating curve, ensuring the correct amount of heat is supplied based on the outdoor temperature. The supply temperature fluctuates around the theoretical desired value.

Own Curve

The VVM 500 supports pre-programmed non-linear heating curves and allows users to create custom linear curves with defined break points.

Hot Water Production

Hot water charging begins when the temperature drops below the set start temperature and stops when the target hot water temperature is reached. A function allows temporary temperature increases (up to 12 hours or one-time) for higher demand. The Smart Control function learns consumption patterns to optimize hot water temperature for energy saving. A holiday mode is available to maintain the lowest possible temperature without freezing risk.

Additional Heat Only

The VVM 500 can operate with additional heat only (e.g., electric boiler) for heating and hot water, useful before an outdoor module is installed.

Alarm Indications

The status lamp turns red during an alarm. ? Detailed information is shown on the display, and an alarm log records temperatures, times, and operating status.

Display and Connectivity

The Display

The VVM 500 features a clear, user-friendly display for instructions, settings, and operational information. Navigation through menus is intuitive. A USB socket allows software updates and data logging. Latest software can be downloaded from nibeuplink.com.

NIBE Uplink

Using the internet and NIBE Uplink, users can monitor installation status, heating, and hot water comfort remotely. Email alerts are provided for malfunctions. NIBE Uplink enables easy control of home comfort from anywhere. ??

Range of Services

NIBE Uplink offers different service levels, including a free basic level and a premium level with extended functions via a subscription.

Installation and Associated Equipment Requirements for NIBE Uplink

To connect NIBE Uplink to the VVM 500, the following are required:

• Network cable
• Internet connection
• Web browser with JavaScript activated
• An account on nibeuplink.com

The NIBE Uplink mobile app is also recommended. More information is available at nibeuplink.com.

NIBE SMART PRICE ADAPTION™

This feature (availability varies by country) adjusts system consumption based on the time of day when electricity prices are lowest, potentially saving costs with an hourly rate subscription. It requires an internet connection and NIBE Uplink account.

SMART HOME

The VVM 500 can integrate with smart home systems via NIBE Uplink, allowing app control and optimizing operation as part of the smart home ecosystem.

NIBE SMART ENERGY SOURCE™

This function prioritizes energy sources based on cost or carbon neutrality, allowing users to select the most economical or environmentally friendly option.

Technical Data

Dimensions

Diagrams show the physical dimensions of the VVM 500 unit, including width, depth, height, and required ceiling height for installation.

• Width: 760 mm
• Depth: 900 mm
• Height: 1,900 mm
• Required ceiling height: 2,000 mm

Technical Specifications

*Applies in the case of normal comfort mode, tap flow 8 litres/minute and incoming cold water 10 °C. Increased hot water comfort can be obtained at lower tap flow.

Accessories

Detailed information about accessories and a complete list are available at nibe.eu. Not all accessories are available in all markets.

• Active cooling ACS 310: Enables VVM 500 to control cooling production (requires NIBE air/water heat pump). Part no. 067 248.
• Pool heating POOL 500: Enables pool heating with VVM 500. Part no. 067 181.
• Pipe for external heat source DEH 500 (oil/electricity/gas): Part no. 067 180.
• Docking kit SCA 30: Connects VVM 500 to thermal solar heating. Part no. 067 179.
• Energy measurement kit EMK 500: Measures energy supplied for pool, hot water, heating, and cooling. Part no. 067 178.
• Top cabinet TOC 500: Conceals pipes/ventilation ducts. Available in heights 245 mm (Part no. 056 177), 345 mm (Part no. 056 178), and 395-645 mm (Part no. 056 179).
• External electric additional heat ELK: ELK 15 (15 kW, 3 x 400 V, Part no. 069 022) and ELK 213 (7-13 kW, 3 x 400 V, Part no. 069 500). Requires DEH 500.
• Extra shunt group ECS: For houses with multiple heating systems requiring different supply temperatures. ECS 40 (Max 80 m², Part no 067 287) and ECS 41 (approx. 80-250 m², Part no 067 288).
• HRV unit ERS: Supplies accommodation with energy recovered from ventilation air, ventilating and heating the supply air. ERS S10-400¹ (Part no. 066 163) and ERS 20-250¹ (Part no. 066 068). ¹ A preheater may be required.

About NIBE

NIBE has been manufacturing energy-efficient and sustainable climate solutions for homes for 70 years, originating from Markaryd, Sweden. The company utilizes the power of nature, combining renewable energy with smart technology to offer efficient solutions for a sustainable future. NIBE products provide cooling, heating, ventilation, and hot water for comfortable indoor climates with minimal environmental impact.

NIBE Energy Systems
Box 14, SE-285 21 Markaryd
nibe.eu

This product sheet is a publication from NIBE Energy Systems. Information is based on current data at the time of approval. NIBE Energy Systems reserves the right to make corrections for factual or printing errors. ©2022 NIBE ENERGY SYSTEMS