Data Sheet for Product

WRTS Quick Reference
Document Number 149-477
November 2, 2015
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models
as design improvements are introduced. APOGEE and Insight are registered trademarks of Siemens Industry, Inc. Other product or company
names mentioned herein may be the trademarks of their respective owners. © 2015 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089-4513
USA
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Document No. 149-477
Printed in the USA
Page 2 of 2
Battery
Replacement
Figure 1. Step 1.
Figure 2. Step 2.
Typically, the WRTS battery should last about five years. However, this can vary
depending on WRTS usage and activity.
Required Tools
• 1/16” hex key
• small flat-blade screwdriver
• 3.6V lithium AA battery
CAUTION:
Be sure to replace the battery with the recommended 3.6V AA lithium battery,
SAFT: LS14500BA. These batteries are commonly available at Batteries Plus
and other battery distributors.
Replacing the WRTS Battery
1. Use a 1/16” hex key to turn the safety set screw clockwise one or two revolutions
(see Figure 1) to tighten the screw and unlock the cover from the base plate.
2. Use a small flat-blade screwdriver, or similar item, to push up and backwards on the
base plate at the small rectangular cutout (see Figure 2).
3. Starting at the bottom, lift the cover away from the base plate.
4. Replace the battery.
5. Hook the cover onto the top latches of the base plate, and then push the cover to the
base plate until it latches.
6. Turn the safety set screw counterclockwise one or two revolutions to loosen the
screw and lock the cover to the base.
NOTE:
Do not loosen the screw too far as it can be completely removed from the base.
7. Push either the + or – button once (or twice if the display is off) to verify the setpoint,
which displays next to the
icon.