NuTone NTBZ48

18 Copyright © 2016 Broan-NuTone LLC
Thermostat Operation
Main Thermostat Screen
Figure 18. Main Screen
Backlight and Buon Operaon
The thermostat backlight is normally set to go out aer 20 seconds of no buon presses to conserve
baery power. If the backlight is o, the rst buon press of any buon will only turn on the backlight.
Once the backlight is on, the buons funcon normally.
Display
Figure 19. Display Screen System Operation Model
displayed > System is ON and heating.
blinking > System is ON and heating. Minimum Run Time (MRT) delay is active.
displayed > System is ON and cooling.
blinking > System is ON and cooling. Minimum Run Time (MRT) delay is active.
NOTE: Degrees C (Celsius) are shown in .5 degree increments. Degrees F (Farenheit) are shown in 1
degree increments.
Staging Indicators
“1” = Stage 1 heang or cooling is ON.
“2” = Stage 2 heang or cooling is ON.
“3” = Stage 3 heang (Aux Heat) is ON.
For Heat Pump systems only:
“Heat-E” = Emergency heat mode acve.
Off
Heat-E
Cool
Auto
Select
Auto
On
Done
72F 80c
23.5
F C
Low Batt
FAN MODE
INDICATORS
SYSTEM MODE
INDICATORS
TEXT DISPLAY LINE
LOW BATTERY
INDICATOR
DISPLAY LOCK
INDICATOR
Z-WAVE NETWORK
INSTALLED INDICATOR
123
MODE
FAN
Off
Auto
FAN MODE SELECTION
HEATING/COOLING
MODE SELECTION
TEMPERATURE SETPOINT
WARMER
COOLER
74
ROOM TEMPERATURE
BACKLIT DISPLAY