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How do i wire the ASCO 108D90C and 173A19?
Please follow the wiring instructions and diagram below for the ASCO 108D90C AC Gas Valve Relay panel and ASCO 173A19 Emergency Pushbutton.
  • From 108D90C output TB1 connect to normally closed 173A19 NC-A contact.
  • Next from normally closed 173A19 NC-B contact series connect to normally closed 108D90C (1) contact on built-in pushbutton.
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You may also watch video below that is related to this.



For further information, you may click on this 108D90C link or contact Technical Support at 1-800-800-2726 then dial 3 or send an email to technicalsupport@ascopower.com.

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