→WIRING DIAGRAM NOTES
1.The AC model thermostat can only control 1-stage cool and 1-stage heat. Dip Switch-C on has no controlling function and can either be ON or OFF.
2.HP and 2S model thermostat MUST have Dip Switch-C ON when installed in air conditioner applications. If required, second-stage heat is controlled by O/W2. Refer to indoor equipment Installation Instructions for proper setup.
3.HP and 2S model thermostat MUST have Dip Switch-C OFF when installed in heat pump applications. The reversing valve is controlled by O/W2.
4.Intelligent Heat Staging Option: 2S model thermostat with Dip Switch-C OFF and Switch-D ON. This provides single-stage heat pump operation Y/Y2, with three-stage auxiliary heat via W/W1 and Y1/W2. Refer to variable-speed fan coil Installation Instructions. Proper 'intelligent heat capable' electric heater package must be used.
5.As an option, lock the furnace into low-fire operation and let O/W2 control high-fire operation. Refer to indoor equipment Installation Instructions for proper setup.
6.Furnace must control its own second-stage heat operation via furnace control algorithm. Refer to indoor equipment Installation Instructions for proper setup.
7.Terminals marked with * may not be present on equipment.
8.Refer to fan coil Installation Instructions for proper wiring.
9.Select the "ZONE" position on the 2-speed heat pump control board.
10.Omit red and pink wires from diagram with wiring a 50ZP, ZH with 2-stage heaters.
11.Refer to outdoor equipment Installation Instructions for proper setup.
12.Program thermostat to bring on G (fan) with any W (heat) selection. See section under "set thermostat configuration."