PRODUCT DATA
68-0216-03
RA889A Switching Relay
APPLICATION
The RA889A Switching Relay provides intermediate
switching of line- and low-voltage devices from a line- or
low-voltage controller and is typically applied in hydronic
heating systems.
FEATURES
• High load switching capability.
• Troubleshooting LED.
• Push-to-test button.
• Replaceable transformer fuse.
• Long-life DC relay drive control technology.
• Relay for use with external 24 Vac or 24 Vdc supply,
with line-voltage control, or with internal 24V
transformer supply.
• One model replaces many Resideo models. (See Table
1 Replacement Cross Reference.)
Contents
Application ..................................................................................... 1
Features .......................................................................................... 1
Specifications ............................................................................... 2
Installation .................................................................................... 3
Mounting ........................................................................................ 3
Wiring .............................................................................................. 3
Operation ....................................................................................... 4
Checkout ........................................................................................ 4
Troubleshooting .......................................................................... 4
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