Home
MyKooltronic Account
U UserID
CUSTOMER NO.
COMPANY NAME
MyKooltronic Home
Update Your Account
View Orders
View Invoices
Track Shipments
View Shopping Cart
View Quote Requests (RFQ)
Logout
Cart
Your Shopping Cart
Your Cart is Empty

View Cart
RFQ
Your Quote Requests
You have no products to be quoted

View RFQ Cart
(609) 466-3400 Contact Us!
(609) 466-3400 Contact Us!
  • Products & Services
    • All Products
    • Air Conditioners
    • Centrifugal & Packaged Blowers
    • Fans and Fan Trays
    • Heat Exchangers
    • Custom Cooling Design
    • Enclosure Accessories
    • Spare/Replacement Parts
    • Contract Manufacturing Services
  • Industries
    • All Industries
    • Battery Energy Storage Systems
    • Kiosks, ATMs & Smart Lockers
    • Medical Technology
    • Wastewater & Water Treatment
    • Transportation
    • Industrial Manufacturing
    • Hazardous Locations
    • Food & Beverage
    • Military & Avionics
    • Infrastructure
    • Security Detection & Surveillance
  • Sizing
  • Resources
    • Cooling Solutions Blog
    • MyKooltronic Customer Portal
    • Product Documentation
    • Whitepapers
    • An Intro to Closed Loop Cooling
    • Quality & Compliance Certficates ►
      • ISO 9001:2015 Certificate
      • UL Client Test Data Program Certificate
      • ROHS 3 Compliance Statement
      • REACH Declaration
      • Kooltronic Quality Policy
      • Conflict Minerals Report
    • Credit Application
    • Credit Reference Form
  • About Us
    • About Kooltronic
    • News & Announcements
    • Eco-Friendly Practices
    • Interactive Timeline
    • Virtual Tour
    • Our Core Values
    • Careers with Kooltronic
  • Contact Us
    • Send Us a Message
    • Sales Team
    • After Sale Kare (ASK)
  • Shopping Cart
  • RFQ Cart
  • MyKooltronic

Discontinued Switchable Air Conditioners

Models that are operable at different Hz are discontinued, and are listed here for informational purposes. We recommend as possible alternatives the Guardian Series.

Series
(with recommended replacement)
Model  BTU/H  Voltage 
Trimline Series KA4C2.0NP17L56 2000

115

  See New Guardian K2A4C2.0NP17L5 2000 115
  KA4C2.5NML56 2500 115
  K2A4C2.5NML5 2500 230
  KA4C4NP28L56 4000 115
  K2A4C4NP28L5 4000 230
  KA4C4NP33L56 4000 115
  K2A4C4NP33L5 4000 230
  KA4C4NP36L56 4000 115
  K2A4C4NP36L56 4000 230
  KA4C6NP36R56 6000 115
  K2A4C6NP36L5 6000 230
Traditional Series 
KA4C1.0MML56 1000 115
  See New Guardian K2A4C1.0MML5 1000 230
Integrity Series
(See New GuardianX)
K2NA4C3P21L5 3000 230
Horizontal Rack Mount KA4C3.5H9R56 3500 115
  See New RML K2A4C3.5H9R5 3500 230
  KA4C3.5H10R56 3500 115
  K2A4C3.5H10R5 3500 230
Horizontal Top Mount KA4C2.5HSR56 2500 115
  See New Top Mounts K2A4C2.5HSR5 2500 230
  KA4C4HTL56 4000 115
  K2A4C4HTL5 4000 230
  KA4C4.2H5R56 4200 115
  K2A4C4.2H5R5 4200 230
  KA4C5.0H5R56 5000 115
  K2A4C5.0H5R5 5000 230
Trimline Water-Cooled
KA4CWNP28/56 4000 115
  See New Trimline Water-Cooled K2A4C4WNP28/5 4000 230
  KA4C4WNP33/56 4000 115
  K2A4C4WNP33/5 4000 230
  KA4C4WNP36/56 4000 115
  K2A4C4WNP36/5 4000 230
  KA4C6WNP36/56 6000 115
  K2A4C6WNP36/5 6000 230
  KA4C7WNP47/56 7000 115
  K2A4C7WNP47/5 7000 230
  K2A4C12WNP47/5 12000 230
Footer logo
Tuesday, May 20, 2025  
©2025 Kooltronic, Inc. - All rights reserved.
Terms of Use
Contact Info:
Kooltronic, Inc.
30 Pennington-Hopewell Road
Pennington, NJ 08534 USA
609-466-3400
800-321-KOOL
609-466-1114 (fax)
Contact Us
Popular links:

Home
Product Sizing and Selection
Catalogs/Brochures
Sales Team
Careers
MyKooltronic

LinkedIn profile icon Twitter profile icon YouTube profile icon Facebook profile icon Kooltronic Blog icon
ISO-9001 logo Made In USA logo