Furnace Twinning Kit

FEATURES

This twinning kit is used to twin two furnaces with variable-speed constant-torque ECM blower motors and controlled by a mechanical thermostat. An electronic User Interface cannot be used and is not approved for twinned furnaces. This furnace twinning kit permits two furnaces to operate together like one larger two-stage furnace on the same duct work. The furnaces must be installed with common supply and return plenums. For upflow installations, the common return plenum or platform must use some or all of the bottom return opening as shown in the DUCT CONNECTIONS section. This kit ensures both furnace blowers operate simultaneously so air flows through the duct work rather than recirculating in a loop between the furnaces.

INCLUDES

• 1 Extension Harness Assembly
• 1 Main Twinning Harness Assembly
• 1 Secondary Twinning Harness Assembly
• 3 Wiring Labels
• 1 Reference Label
• 1 Instructions
• 1 Loose Parts Bag-Includes:
• 2 Communication Connector
• 1 Snap Bushings
• 1 Wire Tie
• 2 7/8 in. Cable Clamps
• 11 #6 x 3/4 in. Screws
• 1 Screw with 3/8 in. formed washer