NTG5110 & NTG5220 400-115-006-E 10/11/06 1/3
Nuheat’s NTG5110 & NTG5220 programmable thermostats can be
used to control the ambient air temperature or floor temperature. You
can
select among the following temperature control modes:
Memory Backup:
In the event of a power failure, an internal circuit will maintain the pro-
grammi
ng and time. However, the time will have to be re-set if the
power failure exceeds 6 hours.
Set the time using the Hour and Min buttons.
Set the day using the Day button.
Press Mode/Ret to exit.
The Comfort , Economy and Vacation settings respectively
repr
esent the temperatures that you wish to have during the day ( ),
at night or while you are away at work ( ), or while you are away for
an extended period ( ).
This thermostat is pre-programmed with the following default Com-
fort, Economy and Vacation setpoints.
If
the default temperature settings suit your personal preferences,
skip
the following section.
To Modify the Default Setpoints:
To modify the Comfort temperature, select the desired
temperatur
e using the buttons and hold the button until
the icon is displayed (app. 3 seconds).
To modify the Economy temperature, select the desired temper-
ature
using the buttons and hold the
button until the icon
is
displayed (app. 3 seconds).
To modify the Vacation temperature, select the desired tempera-
ture
using the buttons and hold the
butt
on until the
ico
n is displayed (app. 3 seconds).
Press the Mode/Ret button to exit this function and return to the
normal operating mode.
Description
1.
A mode: controls the ambient air temperature
F mode: controls the floor temperature using an
external temperature sensor
AF
mode: controls the ambient air temperature
maintains the floor temperature within desired
limits using an external temperature sensor
Operating Modes
2.
MANUAL
Al
lows you to manually adjust the temperature set-
point.
To activate this mode, press Mode/Ret to dis-
play the icon.
Set the desired temperature using or
se
lect one of the pre-programmed settings
( , or ).
AU
TO
Executes the default schedule or your own pro-
gramming.
Use this mode to maximize energy savings. To
activate it, press Mode/Ret to display the icon.
The or icon indicates which temperature set-
tin
g is used. Also, the icon of the period number
will be shown. (i.e. )
Power On switch /
reset GFCI
Temperature
adjustment
Set pro
gramming
Se
lect Operating
Mod
e / Return
Temperature
Ope
rating mode icons
Period number
Comfort setpoint
Time and day
He
ating indicator
Backlight button
Erase
programming
Comfort, Economy
an
d Vacation icons
Appears when the
se
tpoint is displayed
Temperature control
mode
icons
Ground fault
indicato
r
Lights up display, automatically turns off after 12 seconds
Set day
Set tim
e
Economy setpoint
Vacation setpoint
Time and Day Adjustment
3.
Setpoint Configuration
4.
Icon Setpoint F mode A/AF mode
Comfort 88 °F (31 °C) 70 °F (21 °C)
Eco
nomy 73 °F (23 °C) 63 °F (17 °C)
Vacation 50 °F (10 °C) 50 °F (10 °C)
NTG5110 & NTG5220
Homeowner’s Guide
Programmable Thermostats
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