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Micro-Air Easy Start ASY-398-X1S-BL Flex Home & Marine AC Soft Starter - Up to 72,000 BTU's A/C System - 115/230V

The Micro-Air ASY-398-X1S-BL EasyStart Flex Home and Marine AC Soft Starter is an advanced soft starter for residential AC units from 1 to 6 tons (12,000 to 72,000 BTUs), featuring patent-pending adaptive learning technology that is unmatched by other soft starters. It offers up to a 75% reduction in start-up current and a 50% reduction in overall enclosure size, allowing for installation in tight spaces. 115/230V.

 

Reference: ASY-398-X1S-BL
Available Online: 2
Ft. Lauderdale: 0
Miami: 2
Regular Price: $389.00
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Micro-Air EasyStart ASY-398-X1S-BL - EasyStart Flex Home AC Soft Starter - For 12K-72K BTU Systems, 115/230V 50/60 Hz

ASY-398-X1S-BL

Discover the Benefits of Owning an EasyStart Flex Soft Starter

The EasyStart Flex Home and Marine AC Soft Starter is designed specifically for single-phase motors commonly used in residential and commercial air conditioning systems. Through Micro Air's innovative technology, the EasyStart can reduce start current by up to 75%, allowing your air conditioner to operate efficiently even with limited power sources such as generators, inverters, or restricted utility power.

EASY START FLEX AT A GLANCE 

  • Micro-Air products are made in the U.S.A
  • Patent-pending learning technology unmatched by any other soft starter on the market. Up to 75% reduction in start-up current
  • One-size-fits-all solution
  • 50% reduction in overall enclosure size, allowing installation in the smallest spaces
  • 100% Quality Control tested before leaving the facility

What Is The EasyStart Bluetooth Module?

EasyStart soft start models that end with "-BLUE" include Micro Air's built-in bluetooth module for remote troubleshooting assistance.

The bluetooth module included is designed to provide diagnostic feedback to installers at the AC unit and to Micro Air's engineers if needed. Please note that the Bluetooth module does NOT allow you to control your AC unit, as that is a function of the thermostat and AC control board. Instead, it serves as a sophisticated diagnostic feature.

EasyStart Soft Starter Bluetooth Features:

  • Available via Micro Air's free smartphone app (both iPhone and Android).
  • On-the-spot diagnostics for installers and owners.
  • Built-in technical support submission feature allowing remote diagnostics at Micro-Air.
  • Troubleshoot issues remotely and safely, no disassembly needed.
  • Convenient on-demand firmware updates OTA when available.
  • Need to move EasyStart to a new air conditioner? A simple remote one touch process allows our soft starter to "learn" the unique properties of the new unit's compressor.

A Closer Look

  • Perfect emergency power solution on small to mid-sized generators
  • Reduces blinking of lights when A/C starts at home
  • Sleep with less noise, and cool all throughout the night. Reduces the loud start up noise of the AC motor
  • Critical for those with medical and comfort needs for A/C during power outages
  • Specialized fault checks not found in any other soft starter provide further protection for your compressor motor
  • Micro Air's advanced intelligent short-cycle delay timer provides the necessary delay to any short-cycle restart while preventing unnecessary delay for normal-cycle restarts. This reduces any potential damage and wear and tear on the compressor motor, ensuring its longevity.
  • Precise Overcurrent and Stall detection to protect compressor motors from harmful sustained or abrupt low-voltage conditions. It's designed to safeguard your compressor and ensure that your system remains reliable and long-lasting.
  • Compatible with TXVs, EEVs, and fixed metering devices.
  • Compatible with 2-stage Compressors and Heat Pump Units

Technical Specifications

Micro-Air Part ASY-398-X1S-BL
Voltage 115/230v - 50 / 60 Hz
Dimensions 7.64L x 3.58W x 2.50H in (194L x 91W x 64H mm)
Capacity 12,000-72,000 BTU/h (3.5 - 21.1 kW)

EasyStart Wiring Tutorial for CTM Marine Air Conditioners - Video

EasyStart Diagram CTM Marine

Micro-AIR%20Logo%20new.JPG

Reviews

C
By Chance 2026-06-09 14:06:41
Very Happy
Very happy with the easy start. Simple instructions and made my 5ton start up easier. Pretty happy with Citimarime reaching out a long time after for a review. I can say I highly recommend it and there fast shipping.
D
By Dan 2026-02-11 14:52:14
Soft start
Works flawlessly. I have one for 2 AC units . Helps run both at the same time with my solar set up. Working for over a year.
R
By Roger 2025-06-18 17:53:40
Great Product!
This product works great. Reduced my startup amps on 3 ton heat pump for around 100 to 21. Has been in service for about 1 year with no issues.
D
By DAN 2025-06-08 12:39:11
Soft start
Working perfectly since install. Have 2 AC units so got another. Now I can run both units on solar!!
A
By ABS 2025-05-22 12:49:59
So far so good.
I bought two of these units last year. One for a 3-ton and the other for a 3.5-ton AC for the two floors of my home. I did see a big difference in startup currents. The startups are quieter as well. Both worked fine all year last year and seem to be working fine this year as well. They were easy to install. I suggest that manufacturer include the crimp connectors with the units; for what these units cost, including a dollar worth of connectors would be a good idea.
S
By Scott 2025-05-22 06:42:50
5-Ton Trane: 140 LRA down to 39 LRA
One of the best products I have ever purchase. Rooftop A/C in Phoenix, AZ. 120°F + throughout the summer. On its second year. Stopped the wire bang in the walls on startup. Runs much quieter. Run amps in half down to 29A. Power bill shows nearly the same result. Dropped my peak demand charges by 75%!!! This product should be a Federal Mandate on every home & business unit, new and existing. Along with double sided, fully insulated, garage doors...
J
By Josh 2025-05-14 12:31:21
Great Product with small hiccup
I installed the unit myself and it was working great for a few weeks. At one point I pulled up the unit log with the app and it had a bunch of faults. In addition, when the compressor was commanded on it would take way longer than normal. I contacted Micro Air and was given a list of things to troubleshoot. Long story short, I swapped out the capacitor and it hasn't had another fault since. My AC unit was only 5 years old. I don't know if the easy start accelerated or caused the demise of my old capacitor or if it just went bad on its own. As far as performance it's hard to overstate what this thing does. My 5 ton AC unit is starting with less than 30 amps. It's performing way better than what I was promised. Hopefully the performance continues. Oh, and I now keep a spare capacitor around just in case.
SW
By Steven Weisbrod 2025-04-03 14:21:23
The Micro-Air Easy Start Works
I installed this unit about 6 months ago. Very easy to do if you have basic electrical knowledge. The unit has gone through over 5000 cycle starts without a hitch, the best part is that my 9500 watt generator can start and run my 4 ton unit with no issues which is why I bought this unit. Living through several hurricanes I needed this specifically to run my central air. Thanks.
LB
By Larry Buehler 2024-09-24 13:59:05
Flex is King
This easy start is performing perfectly. Being a DIY type of guy, I watched several installation vids to get a lot of feedback on things to consider while working on this. By the time I installed it, I was very comfortable with what I had to do. It took about 30 minutes to install and has worked flawlessly since. My HVAC is a 5 Ton Rheem (a 2009 model!) that works great. I even installed a new single pole contactor relay on it just prior to installing the Flex.
GR
By George Rieker 2024-09-22 23:28:02
Mr
Original start up amp: 62. After learning, subsequent start ups are 26- 27.2 amps. Nothing else to say!!!!
B
By Brian 2024-09-09 11:35:25
Happy customer
So far so good, After installing this unit on my home AC I no longer have that loud startup noise, or vibration. I have also noticed that my generator doesn’t bog down as much when the AC comes on. So yes I would recommend this unit. Also very easy to install 👍