PIR Warm-Up Period - Johnson Controls - 24-9890-1397 - T612DFH-4 - T612DFH-4+PIR - T612DFH-4 and T612DFH-4+PIR Thermostat Controllers with Fan Control and Occupancy Sensing Capability

T612DFH-4 and T612DFH-4+PIR Thermostat Controllers with Fan Control and Occupancy Sensing Capability Installation Guide

Brand
Johnson Controls
Product name
T612DFH-4 and T612DFH-4+PIR Thermostat Controllers with Fan Control and Occupancy Sensing Capability
Document type
Installation Guide
Document number
24-9890-1397
Document revision
B
Revision date
2021-01-07
Product status
Discontinued
Language
English

When a PIR cover is used and a thermostat controller is powered up, there is a 1-minute warm-up period before any local movement can be detected and acknowledged by the PIR sensing device. The local status LEDs for the PIR function are not active, and the sensor is in Standby mode for the 1-minute period.

The PIR functionality and local movement status LEDs are activated after the 1-minute warm-up period has elapsed after the initial powering of the thermostat controller. If movement is present, the mode changes to Occupied.