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2. Attach the thermostat assembly to the sub-base. Check stage one anticipator settings - should read
.40.
Note: Black and blue wires on the ECUA12 and black, blue and orange wires on the ECUA18
terminal block are dry contacts which can be used for remote signaling in the event of equipment
shut-off on low or high pressure limits.
3. Unit shut down is available from a field provided alarm device; i.e., smoke alarm, fire stat. Install
a normally closed device between red wire and the "R" terminal on the thermostat. This will
disable the 24V control voltage. See Figure 4.
NOTE: THE INTERNAL TRANSFORMER IS NOT DESIGNED TO POWER OTHER EXTERNAL
DEVICES.
Figure 5. Thermostat Wiring Diagram
19
ICE SlimPac ECUA12-18 I&O Manual 03/2019 Rev.2
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Troubleshooting
