Twinning Furnaces. TWINNING KIT FOR GAS FURNACES Surplus City Liquidators Thermostat shows on readout panel 1 + 2 and the owner does not have thermostat manual The twinning controller is a Johnson Controls model Y88FB-2, it also has LED light which is not.
BAYTWIN400A FURNACE TWINNING KIT FOR TUDC UPFLOW FURNACES B330410P01 from www.ebay.com
Twinning Furnaces When you are setting up furnaces for heating and the BTU demand is higher than one furnace can satisfy you have to twin them up Today's furnaces use integrated circuit boards with the twinning capability built in
BAYTWIN400A FURNACE TWINNING KIT FOR TUDC UPFLOW FURNACES B330410P01
Example 200,000 BTU's replace with two 100,000 BTU units If you hook them up you use one thermostat and wire it to furnace #1 you then use an isolation relay. Example 200,000 BTU's replace with two 100,000 BTU units
Y88FB1 Johnson Controls Y88FB1 Furnace Twinning Control Kit. If you hook them up you use one thermostat and wire it to furnace #1 you then use an isolation relay. each furnace are de-energized and close each furnace's gas valve
A guide to wiring diagrams for twinning furnaces. This accessory kit is used to operate two gas-fired furnaces that are intended to be "twinned together," meaning connected in a shared duct system controlled by a single thermostat When installing twinned outdoor units with twinned gas furnaces, it is necessary to use a field--supplied 24--VAC pilot--duty relay and a field--supplied 24--VAC/115--VAC transformer as shown in the