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RLA162.5U Room Temperature
Controller
Product Description
Room temperature controller for basic ventilation, air
conditioning and heating systems. Compact design
with two analog, 0 to 10 Vdc control outputs for
heating and/or cooling.
Product Numbers
RLA162.5U Automatic Heat/Cool Changeover
Warning/Caution Notations
WARNING:
CAUTION:
Required Tools
•
Small, flat-blade screwdriver
•
Wire strippers
•
6-inch level
Mounting Accessories
•
ARG70 wall plate
•
141-570 lockable thermostat guard
•
QAP22 Changeover sensor
Expected Installation Time
35 minutes
Item Number 129-450, Rev. AA
Personal injury/loss of life may
occur if you do not follow the
procedures as specified.
Equipment damage, or loss of
data may occur if you do not
follow the procedures as
specified.
Installation Instructions
Prerequisites
• Provide 24 Vac power source to thermostat wall
mounting location.
• Run wires from damper/valve actuator to
thermostat wall mounting location.
Installation
Figure 1. Acceptable Mounting Height in Inches.
Figure 2. Airflow Requirements in Inches.
Document No. 129-450
October 5, 2009
Page 1 of 4
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Summary of Contents for Siemens RLA162.5U
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Page 1: Product Description
0 to 10 Vdc control outputs for thermostat wall mounting location. heating and/or cooling. Installation Product Numbers RLA162.5U Automatic Heat/Cool Changeover Warning/Caution Notations WARNING: Personal injury/loss of life may occur if you do not follow the procedures as specified. - Page 2 Document No. 129-450 Installation Instructions October 5, 2009 Page 2 of 4 Siemens Industry, Inc.
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Page 3: Wiring Terminals
Operating voltage, 24 Vac negative Day/night changeover Limitation input 0 to 10 Vdc Ground for day/night changeover Figure 5. RLA162.5U Room Temperature Control with Measuring Neutral Minimum Limitation of the Supply Air Temperature. Heat/cool changeover sensor Fan or auxiliary relay, positive... -
Page 4: Troubleshooting
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. Teflon is a registered trademark of DuPont. Product or company names mentioned herein may be the trademarks of their respective owners. © 2009 Siemens Building Technologies, Inc. Siemens Industry, Inc.