Honeywell 63-4526-01 User Manual

63-4526—01

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At initial power-up, when the thermostat 24 Vac power supply is applied; the initial occupancy of the zone will be stand-by mode if 

the PIR devices do not detect any movement.

As soon as any of the PIR devices detect a movement or motion, the occupancy status switches to occupied and the occupied 

setpoints are used.

Anytime local motion is detected by one of the PIR devices, the elapsed stand-by timer value will be reset. If either PIR devices in 

the zone detect no motion for the entire stand-by timer duration, then the room switches to stand-by mode and the stand-by 

setpoints are used.

While in stand-by mode, if no motion is detected in the zone by either PIR device for the entire unoccupied timer duration, then 

the room switches to unoccupied mode and the unoccupied setpoints are used.

At anytime, if one of the PIR devices detects a local movement or motion, the occupancy status switches to occupied and the 

occupied setpoints are used.

Set-up and Configuration
Thermostat used

TB73x0X5014 (commercial models)

PIR used

BI1 configured for remote PIR sensor and 
TB-PIR-FCU-C cover

BI2 Configuration

None, no function

Stand-by timer value

2.0 hours

Unoccupied timer value 

6.0 hours

Network interface used

None, stand-alone