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Don’t see what you need? Send us your parts request today.
PARTS REQUESTALL BRANDS
Click All Brands to see a list of all of our current parts in stock,
PARTS REQUEST
Don’t see the part you need? Send us your Parts Request!
QUESTIONS?
Have a question? Contact us by email or by usin our Contact Form
ONE YEAR WARRANTY
ABC Greymarket (an affiliate of AB Controls LLC) offers a one-year warranty for all HVAC controllers and parts purchased from us.
TECHNICAL SUPPORT
Our experienced technicians can help with set-up and troubleshooting of any parts you purchase from us.
25 YEARS EXPERIENCE
We know about the many versions and releases on theses controllers and will help you choose the right part for your system.
ONE STOP SHOP FOR ALL HVAC CONTROLLERS & PARTS
We Buy and Sell both all brands of new and used controllers! Contact Us for a Quote.
Need a part? Send us your parts request! Have parts to sell? Send us your parts list and we will send you a quote for the parts we have a demand for. We will get back to you within 48 hours.
Need a new, used or discontinued part? Email us!
What We Do Best!
Finding new, used, hard-to-find or discontinued HVAC controllers and parts is our specialty. With multiple reliable sources, we are able to locate almost any part you need, any brand, any system, any version. We supply all brands, such as Alerton, American Auto-Matrix, Andover, TAC, CSI, Control Systems International, Automated Logic, Barber Colman, Circon, Delta, Distech, Honeywell, Invensys, Johnson Controls, KMC, Novar, Reliable, Robertshaw, Siebe, Siemens, Smart Controls, Trane, Voyant, York, and much more!
FINDING PARTS!
We are tightly connected to dozens of resources and can find almost any part, new or used at discount prices.
IN DEPTH KNOWLEDGE
With over 25 years experience, rest assured we will help you identify and acquire the right controller release for your system.
QUALIFIED TECHNICIANS
All of our staff members are highly qualified professionals with extensive knowledge of new and older HVAC systems.
QUICK TURN AROUND TIME
Order your part online via our contact form or send us a list of the parts you need and we will get back to you within 48 hours.
NEW, USED or DISCONTINUED PARTS
Need a Hard to Find Part or Controller?
Our company has dozens of proprietary resources, able to find almost any HVAC controller part you need at very reasonable prices. If it is still being manufactured, we can usually locate for you a choice of new or used at discounted pricing.
DDC
We buy and sell all brands of HVAC DDC controllers
PLC
NEW! We now have PLC controllers and parts available.
MODULES
Some field modules are also available. Specify model numer.
SENSORS
Sensors for several brands are also available.
Have parts to sell? Send us your list for a quote.
WE BUY DDC PARTS
Do You Have HVAC Controllers, Sensors or Parts to Sell?
Have you recently upgraded and have parts to sell? Send us your list including Model Number, Quantity, and Version if you know it, and we will get back with you to give you a quote. Parts we like to buy include the main DDC brands below: