Fixed Speed high Efficiency Blower Kits on Gas Furnace Applications

This addendum is a supplement to the unit Installation Instruction concerning twinning of the furnaces.

A furnace equipped with the Fixed Speed High Efficiency Blower Kit is capable of being twinned to another furnace

of the same model, provided that the other furnace is also equipped with the Fixed Speed High Efficiency Blower.

The thermostat wires and the 1/4 inch quick-connect terminals marked “TWIN” on the control boards must be con-

nected together for twinning. The fuses must remain installed on each board. Twinned furnaces must be properly

grounded according to local codes.

FURNACE

W

W

A/C

FSHE

TWIN TERMINAL

BOARD

FURNACE

TWIN TERMINAL