Air-Conditioner Soft Star Controller

The TELINK soft start controller - TL-ASSU220P3 provides an effective solution in reduction of compressor/induction motor start-up current, typically up to 70%, but still provides full startup torque for compressors and motors. Across the line starting of air-conditioner compressor or induction motors is accompanied by inrush currents up to 7-8 times higher than rated running current, and starting torque up to 3 times higher than running torque. The increased unnecessary torque results in sudden mechanical stress on the machine which leads to increased wear and higher service costs and reduced service life. Moreover, the high inrush current and current peaks may stress the power supply system to increased mains and generator loads which may lead to voltage dips results in brown-out or breaking down of other valuable equipment or system function

TL-ASSU220P3 is an embedded design compressor/motor soft start controller, suitable for rated current less than 18 ampere all type single phase air conditioner. It regulates the start-up voltage of the compressor/motor intelligently to effectively reduce the inrush and surge current while starting-up, thus consume much less power from the public utility network or on-site AC power supply system but still provides full startup torque for compressors and motors. TL-ASSU220P3 effective limits the inrush current and so improves stability of the power supply and reduces transient voltage drops that may cause brown-out effect or break down other loads. This will eliminate the need of over dimension of the power supply system which results in reduce capital expenditure investment in power supply capacity, charge meter, circuit breaker and power wire line capacity etc. and extend the service life of the motor or compressor effectively.

TL-ASSU220P3 is a compact size, light weight cost effective soft start controller with fire resistant plastic housing and sealed by epoxy resin make it capable to resist and survive in harsh environment (air-conditioner outdoor unit), this makes TL-ASSU220P3 a cost effective solution with high reliability and stability of:

l         Eliminate over dimension of generator and AC power supply system for compressor start-up need.

l         Reduces strain on the power source.

l         Reduces brown-out effects at compressor start up.

l         Enable an inverter to power air conditioner.

l         Inexpensive and cost effective.

l         Small, lightweight and durable.

1.        Features

l         Limits inrush current

l         Eliminates current surges & voltage drops

l         Extends motor/compressor service life with built-in electronic overload protective relay

l         Integral bypass contactor reduces heat generation

l         Produces smoother starts and stops by controlling torque

l         Reduces vibration and mechanical damage

l         Relieves shock and drive train stress on startup

l         Easy to wire and install to decreases equipment downtime and service cost

l         High reliability and long life

2.        Specification

a)        Electrical

Ø         Nominal Working Voltage: 220Vac (187~266Vac), single phase

Ø         Maximum continuous working voltage: 266VAC

Ø         Maximum continuous working current: 18A

Ø         Over Current limit: 30A/1 minute

Ø         Maximum non-repetitive inrush current: 170A (<20 ms)

Ø         Maximum surge current: 120A (<350 ms)

Ø         Soft start-up time: 1±0.5s

Ø         Current consumption: 48mA (Capacitive 220VAC)

Ø         Power consumption: less than 15VA

Ø         Operation hours: better than 45,000 hours (rated working temperature)

Ø         Effective soft start on/off service: >100,000 times (soft start interval not less than 3 minutes)

b)        Protection

Ø         Insulation resistance between housing and chassis: > 300 M Ω, >3000 VAC in 1 minute

Ø         Shock resistance better than 200m/s2 and 11ms

Ø         Anti vibration: 10～55mm(double amplitude, 1.5mm)

Ø         If compressor failed to soft start after 1.7s soft start controller will enter protection mode for 90 second before restart compressor

c)        Environment

Ø         Working temperature: -40 to 85 ℃

Ø         Working Humidity: 0~95% RH (<40 ℃)

d)        Mechanical

Ø         Controller housing made by non-flammable plastic

Ø         Packaged and sealed by epoxy resin with excellent durable to severe environment

Ø         Dimension (LxWxH): 120 mm × 70mm × 20mm

Ø         Weight: 200g