Heat pump soft starter TL-ASSU220P5

Heat pump soft starter TL-ASSU220P5

TL-ASSU220P5 is a device intended for soft starting of compressors used in heat pumps and single-phase HVAC systems (4HP/5HP).

The softstarter reduces the starting current and minimizes the mechanical and electrical stress on the compressor, contributing to stable operation and extending the life of the equipment.

Main features

• Compatible with heat pumps
• Soft start for single-phase compressors
• Reduction of power peaks at startup
• Protection for the compressor and electrical installation
• Quick installation and easy integration
• Suitable for HVAC and refrigeration applications

Advantages of use

• Reduces power consumption at startup
• Reduces compressor wear
• Improves system stability
• Protects the electrical components of the installation
• Increases the reliability of HVAC equipment

Applications

• Heat pump with one or two compressors
• Residential heat pump systems
• Single-phase HVAC equipment
• Compact refrigeration systems

TL-ASSU220P5 (RJ-ASSU220P5)

Product Description

The TL-ASSU220P5 heat pump soft starter is a soft start controller for compressors and electric motors used in:

• heat pumps;
• chillere;
• air conditioning systems;
• 220V single-phase HVAC equipment.

The softstarter offers an effective solution for reducing the starting current, limiting its values ​​to approximately 70%, while maintaining the full torque required to start the compressor.

Operating principle

When starting compressors in heat pumps, chillers or air conditioners, the starting current can exceed 7–8 times the rated current, and the starting torque can be up to 3 times higher than the normal operating torque.

These overloads cause:

• accelerated mechanical wear;
• vibrations and shocks on the compressor;
• overloading of the electrical network;
• voltage drops;
• affecting other equipment connected to the same power supply.

The TL-ASSU220P5 heat pump soft starter intelligently regulates voltage during compressor start-up, significantly reducing electrical and mechanical shocks.

Main advantages

• Starting current limitation
• Elimination of voltage and current peaks
• Smoother compressor start and stop
• Reducing vibration and mechanical shock
• Motor and compressor protection
• Increasing the lifespan of HVAC equipment
• Stabilizing the power supply
• Reducing the demand on generators and the electrical grid
• Quick and easy installation
• High operational reliability

Protection and reliability

Heat pump soft starter TL-ASSU220P5 includes:

• electronic overload protection relay;
• integrated bypass contactor to reduce heating;
• restart protection;
• Fireproof housing and sealed with epoxy resin.

The compact and durable construction allows use in difficult environmental conditions, including for heat pumps and chillers installed outdoors.

Application

• single-phase heat pumps;
• compact chiller;
• HVAC systems;
• 220V air conditioners;
• single-phase refrigeration compressors;
• refrigeration equipment.

protection

• Insulation resistance: >300 MΩ
• Dielectric strength: >3000V AC / 1 minute
• Anti-vibration protection
• Resistance to mechanical shocks
• Restart protection interval: 180 seconds

Environmental conditions

• Operating temperature: -40°C to +85°C
• Working humidity: 0–95% RH

Construction

• Flame retardant plastic housing
• Epoxy resin sealing
• Dimensions: 120 × 70 × 40 mm
• Weight: 200g

Other controllers for heat pumps.