Residential
Air Conditioners
Heat Pumps
Air Handlers
Boilers
Gas-Fired Steam Boilers
Gas-Fired Water Boilers
Oil-Fired Water Boilers
Coils
Indoor Coils
Condenser Coils
Hot Water Coils
Furnaces
Gas Furnaces
Oil Furnaces
Hot Water Heaters
Indoor Air Quality
PureAir
Filtration
HEPA
Humidification
Dehumidification
Ventilation
Mini-Splits
Mini-Split Air Conditioners
Mini-Split Heat Pumps
Ceiling Cassette Mini-Splits
Ceiling / Floor Mini Splits
Medium Static Ducted Mini-Splits
Wall Mounted Mini Splits
Packaged Units
Thermostats
Programmable Thermostats
Non-Programmable Thermostats
Garage Heaters
Zoning
See all Residential Products

Product Families
Commercial
Controls
Thermostats
Unit Controllers
Sensors
Direct Digital Control
Mini-Split Controllers
VRF Controllers
Heating
Furnaces
Duct Heaters
Unit Heaters
Indoor Air Quality
Pureair
Filtration
HEPA
Humidification
Dehumidification
Ventilation
Mini-Splits
Mini-Split Multi-Zone Heat Pumps
Mini-Split Single Zone Heat Pumps
Ceiling Cassette Mini-Splits
Ceiling/Floor Mini-Splits
Medium Static Ducted Mini-Splits
Wall-Mounted Mini-Splits
Packaged Rooftops
In Stock Packaged Rooftops
Custom Packaged Rooftops
Packaged Rooftop Accessories
Split Systems
Air Conditioners
Heat Pumps
Air Handlers
Coils
Furnaces
VRF
See all Commercial Products
Parts and Supplies
Chemicals and Adhesives
Coils
Combustion
Compressors
Controls
Thermostats
Programmable Thermostats
Non-Programmable Thermostats
Electrical Components
Capacitors
Disconnects
Fuses
Relays
Transformers
Wiring
Indoor Air Quality
Installation Supplies
Condenser Pads
Electrical Hardware
Ducting
Hardware
Insulation
Pipes and Fittings
Motors
Cooling Motors
Heating Motors
Fans
Bearings
Refrigeration Products
Tools
Zoning
See all Parts and Supplies
AHRI Matchup
OEM Repair Parts
Warranty
Service Dashboard
Residential
Air Conditioners
Heat Pumps
Air Handlers
Boilers
Gas-Fired Steam Boilers
Gas-Fired Water Boilers
Oil-Fired Water Boilers
Coils
Indoor Coils
Condenser Coils
Hot Water Coils
Furnaces
Gas Furnaces
Oil Furnaces
Hot Water Heaters
Indoor Air Quality
PureAir
Filtration
HEPA
Humidification
Dehumidification
Ventilation
Mini-Splits
Mini-Split Air Conditioners
Mini-Split Heat Pumps
Ceiling Cassette Mini-Splits
Ceiling / Floor Mini Splits
Medium Static Ducted Mini-Splits
Wall Mounted Mini Splits
Packaged Units
Thermostats
Programmable Thermostats
Non-Programmable Thermostats
Garage Heaters
Zoning
See all Residential Products

Product Families
Commercial
Controls
Thermostats
Unit Controllers
Sensors
Direct Digital Control
Mini-Split Controllers
VRF Controllers
Heating
Furnaces
Duct Heaters
Unit Heaters
Indoor Air Quality
Pureair
Filtration
HEPA
Humidification
Dehumidification
Ventilation
Mini-Splits
Mini-Split Multi-Zone Heat Pumps
Mini-Split Single Zone Heat Pumps
Ceiling Cassette Mini-Splits
Ceiling/Floor Mini-Splits
Medium Static Ducted Mini-Splits
Wall-Mounted Mini-Splits
Packaged Rooftops
In Stock Packaged Rooftops
Custom Packaged Rooftops
Packaged Rooftop Accessories
Split Systems
Air Conditioners
Heat Pumps
Air Handlers
Coils
Furnaces
VRF
See all Commercial Products
Parts and Supplies
Chemicals and Adhesives
Coils
Combustion
Compressors
Controls
Thermostats
Programmable Thermostats
Non-Programmable Thermostats
Electrical Components
Capacitors
Disconnects
Fuses
Relays
Transformers
Wiring
Indoor Air Quality
Installation Supplies
Condenser Pads
Electrical Hardware
Ducting
Hardware
Insulation
Pipes and Fittings
Motors
Cooling Motors
Heating Motors
Fans
Bearings
Refrigeration Products
Tools
Zoning
See all Parts and Supplies
Clearance Center
TOP TOOLS
AHRI Matchup
Cross Reference
OEM Repair Parts
Warranty
My Learning
Sales Tools
Lead and Customer Management
Sales Dashboard
Proposal Builder
Build a Proposal
Financing
Consumer Finance
Commercial Leasing
Survey
ACCA Capacity Calculator
Load Calculator
Promotions
Consumer Rebates
Utility Rebates
Tax Credits
Sales Person Spifs
Learning
BuildASalesPerson
Master Selling
Advanced Master Selling
Operations Accountability
Commercial
Commercial Quick Quote
Total Cost of Ownership
Smart Select
See all Sales Tools
RESOURCES
Lennox Stores
Promotions
About Lennox Stores
Learn About Products
Store Locations
Saturday Hours
Holiday Schedule
See all Lennox Stores
Lennox Learning Solutions
Financial Tools
Consumer Finance
SNAP Finance
Commercial Leasing
See all Financial Tools
Marketing Tools
Advertising
Custom Ad Design Shop
Fill in the Blank Press Releases
Order Literature
Rip and Read Radio Scripts
WEB Connect SEO Website
Website Product API
Managing Marketing Dollars
Your Co-Op Account
Order a CAP Package
CAP Program
Social Media
Social Media Program
See all Marketing Tools
Premier Tools
Technical Tools
Technical
Error Code Lookup
ACCA Capacity Calculator
AutoCAD Templates
Guide Specs
Prodigy Update Firmware Files
Revit Templates
Smart Select
Superheat / Subcooling Calculator
Technical Service
Unit Controller Software
OEM Repair Parts
See all Technical Tools
Alliance Tools
Commercial Quick Quote
iComfort Dashboard
Service Dashboard
News
Saved Carts
Document Library
Quick Order
Order History
  1. Home
  2. Board, Main Control ass'y

Board, Main Control ass'y

Cat # : 12C20

Click to view pricing

  • For availability, please enter your zip/postal code or sign in

    Ship to (change)

  • For availability, please enter your zip/postal code or sign in

    Within 60.0 miles of:

    Select default store

    • The quantity you requested is not available at your chosen plant. We have chosen a plant within your radius that has stock.

Specifications
Catalog Number 12C20
Minimum Order Quantity 0.0
Base Unit of Measure Unit(S)
Gross Weight 2 LB
Documents

New Catalog #'s
New Catalog #'s
12C20 was replaced by

Select a Store

Location

Location Distance Availability
  • There are no available branches for this radius and zipcode.
Would you like to create a proposal for a new lead?
CREATE LEAD & PROPOSAL
Would you like to create a proposal for existing lead?

Please Sign In to Continue

HVAC Professional Registration
close

Login

Forgot Password?

close
Stock Availability
close
Select your zip/postal code:
close
Showing availability for

Default Store