Carrier PERFORMANCETSERIES EDGER THERMIDISTATT CONTROL TP-PRH-A - Manual (Page 41)

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Option 34 − Hybrid Heat Furnace Latch
This selection allows a Hybrid Heat system to finish a heating cycle using the
furnace.
On − Once the furnace is on, it will finish the heating cycle with the furnace. If a
heat pump defrost occurs, the heating cycle will finish with the furnace.
OF − The system will stage from furnace back to heat pump if heating demand
dictates, or 2 minutes after a defrost has ended.
Default is On.
Option 40 — Humidify Fan
This selection controls whether humidification can only be done when a heating
demand is present. If the homeowner turns humidification OFF, this
configuration operates as if the selection was set to OFF.
OF − The humidity output will only energize when there is a humidity demand
and the heating equipment is energized.
On − The humidity output and the fan will energize anytime humidification is
needed during heating mode regardless of the state of the heating equipment.
Factory default is OF (Off)
Option 41 — Variable Speed Blower
This selection allows the installer to select between a single speed or variable
motor. In a system with a two speed compressor (A2, h2, H2), if a
dehumidification demand exists and the compressor is energized for cool to
dehumidify, cooling, or both, and the system has a PSC blower (Option 41 =
OFF), then both Y/Y2 and Y1/W2 are energized.