Wiring must comply with applicable codes, ordinances and regulations.
1. Wire Indoor Sensor to S1 and S2 terminals on the thermostat. For an example of general
wiring of IRS-1, see Fig. 28 to wire one sensor and 29 to wire multiple sensors.
2. Push excess wire back into the hole. Plug the hole using non-hardening caulk, putty or
insulation to prevent drafts from affecting performance.
3. Remove IRS-1 sensor cover.
4. Mount IRS-1 to the wall or junction box using the screws and anchors provided.
5. Level the IRS-1 for appearance only. Device functions correctly even when not level.
6. Install IRS-1 cover.
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