Thermostat Mounting; Power And Reset Options; Wiring Terminal - Aprilaire S84N 1H1C Safety & Installation Instructions

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THERMOSTAT MOUNTING

1. Remove the rear mounting plate
from the thermostat
2. Pull wires through the opening
on the back of the rear mounting
plate
3. Position and level the mounting
plate of the thermostat on wall
and mark the hole locations with
a pencil
4. Insert and tighten supplied self-
drilling anchors (drywall only)
5. Place mounting plate over
anchors, insert and tighten screws
6. Seal wire entry holes to prevent
drafts affecting temperature
readings
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FIGURE 3 – THERMOSTAT MOUNTING

POWER AND RESET OPTIONS

The thermostat is dual power It can either be AC or battery powered, or both (to provide backup
power for the clock) Batteries are optional if the thermostat was connected to AC power when
installed The thermostat has a memory backup that saves the thermostat settings in case of
power interruption The thermostat can be set back to factory defaults from the installer settings
menu See Installer System Settings section for details

WIRING TERMINAL

WIRE SPECIFICATIONS:
• 18-24 gauge thermostat wire
INSTALLATION NOTES:
• Ensure power at the HVAC equipment is off
• Loosen screw terminals, insert stripped wire and re-tighten
• Push the excess wire back into the opening and plug the wall opening to prevent drafts
90-2689
9

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