5
Installation
 Warning 
ELECTRICAL OPERATION HAZARD 
Failure to follow this caution may result in equipment
damage or improper operation.
Improper wiring or installation may damage the
thermostat.
Check to make sure wiring is correct before proceeding
with installation or turning on unit.
Push any excess wire into wall and against mounting 9. 
base. Seal hole in wall to prevent air leaks. Leaks can 
aect operation.
Snap case back together. Attach thermostat to back 10. 
plate by inserting tab on bottom edge and hinging 
up until top snap secures. See Fig. 4.
Close thermostat assembly making sure pins on back 11. 
of  circuit board align with sockets in connector.
Turn ON power to unit.12. 
When power is applied, all display icons are lit for 2 seconds 
to test the display.
Following this, the equipment type for which the thermostat 
is congured is displayed for an additional 2 seconds. 
It will be one of HP, AC or HO. This conguration is Installer/
Factory congurable. Also Main Board can update the latest 
Status information for this conguration to NUI.
4
Attach NUI
English