©2021 Lennox Industries Inc.
Dallas, Texas, USA
INSTALLATION
INSTRUCTIONS FOR
WIRELESS SENSOR AND
REPEATER KITS
TEMPERATURE / RELATIVE HUMIDITY
SENSOR
CATALOG # 21L07
WIRELESS REPEATER
CATALOG # 21L09
Table of Contents
Shipping and Packing List
...........................................2
Overview........................................................................3
Sensor (21L07) ..............................................................5
Sensor – Power Options ..................................................................6
Sensor – S-Bus Wired Installation Setup .........................................6
Sensor – Wired Standalone / NCP Setup ........................................6
Sensor – Operation with BACnet Network (M3/M4 ONLY) ............12
Sensor – Wiring Troubleshooting ...................................................14
Sensor – Wireless Installation Setup .............................................15
Sensor – Wireless Standalone ......................................................16
Sensor – Placement and Confirming Location (Test)
....................17
Sensor – Wireless Checkout / Troubleshooting .............................18
Sensor – Signal Strength Alert Indication ......................................18
Sensor – Low Battery Indication ....................................................18
Sensor – After Hour Override (AHO) .............................................18
Sensor – Data Verification
.............................................................19
Sensor – Network Removal and Reset .........................................19
Repeater (21L09).........................................................20
Repeater – 24VAC Line Power ......................................................20
Repeater – Wireless Installation Setup ..........................................20
Repeater – Signal Strength Alert Indication ...................................21
Repeater – Placement and Confirming Location (Test)
.................21
Repeater – Network Removal and Reset ......................................22
Repeater and Sensor Placement Requirements......23
FCC Compliance Statement ......................................26
FCC RF Exposure Information .................................26