Nu-heat Ntg5110 Assembly instructions

920-115-000-00-1-A 1/2

OPERATING MODES

MEMORY BACK-UP

In the event of a power failure, an internal circuit will maintain the

programming and time. However, the time will have to be re-set if the

power failure exceeds 6 hours.

PROGRAM THE TIME AND DAY

PROGRAM COMFORT, ECONOMY AND VACATION SETTINGS

The Comfort , Economy and Vacation settings respectively

represent 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 ( ).

PROGRAMMING

1 Set the time using the Hour and Min buttons.

2 Set the day using the Day button.

MANUAL

AUTO

Allows you to manually adjust the temperature setpoint.

1To activate this mode, press on Mode / Return to

display the icon.

2Set the desired temperature using the buttons

or select the pre-programmed , or settings.

Executes the default schedule or your own programming.

Use this mode to maximize energy savings. To activate it,

press on Mode / Return to display the icon. The or

icon indicates which temperature setting is used. Also,

the icon of the program number will be shown. (i.e. )

HOMEOWNER’S GUIDE

FOR MODEL NTG5110 (120 VAC)

To modify the Saturday and Sunday schedules:

When making modifications, make sure you are in the right program.

For example, if you are modifying the temperature for the time you

wake up, make sure you are in .

1Press on Day button until SA or SU is displayed.

2Press on PGM button to select and Hour and Min buttons

to enter the time you wake up on weekends.

3Press on PGM button to select and then Hour and Min

buttons to enter the time you go to sleep on weekends.

4Press on Mode / Return button to exit this function.

Schedule/Day MON.

6 AM

9 AM

5 PM

11 PM

TUES.

6 AM

9 AM

5 PM

11 PM

WED.

6 AM

9 AM

5 PM

11 PM

THU.

6 AM

9 AM

5 PM

11 PM

FRI.

6 AM

9 AM

5 PM

11 PM

SAT.

7 AM

---

11 PM

SUN.

7 AM

---

11 PM

88 °F

74 °F

88 °F

74 °F

1 Press PGM to access the programming mode.

2 Press Day to select the day to be programmed (hold for 3 seconds

to select all days of the week).

3 Press PGM to select program number (1, 2, 3 or 4).

A- Press Hour and Min to program the time.

B- Press Clear to clear a time entry.

4Repeat step 3 for remaining programs.

5 When you have completed your programming, press Mode / Return

to exit the programming mode.

Note: It is faster to program the same schedule for the entire week; then

modify the exception days (i.e. Saturday and Sunday).

EXAMPLE

This example applies to people who are home throughout the week.

Comfort period from 6:00 AM to 11:00 PM (Prog. 1)

Economy period from 11:00 PM to 6:00 AM (Prog. 2)

Identical schedule for all days of the week.

1Press PGM to access the programming mode.

2Press and hold Day for 3 seconds to select every day of the

week.

3Press PGM to select Program 1.

4Press Hour to enter 6:00 AM .

5Press PGM to select Program 4.

6Press Hour to enter 11:00 PM .

Note: You may need to clear time entries for Programs 2 and 3. To do so,

press PGM, select Program 2 and press Clear. Press PGM, select

Program 3 and press Clear.

7When you have completed your programming, press Mode / Return

to exit the programming mode.

First, program your schedule. You can program 4 different settings for

each day of the week. For each day, enter:

Time you wake up (Prog.1)

Time you leave for work (Prog.2)

Time you return home (Prog.3)

Time you go to bed (Prog.4)

DEFAULT SCHEDULE

This thermostat is pre-programmed with the following default schedule.

It applies to people who wake up at 6:00 AM, leave for work by 9:00 AM,

return home for 5:00 PM and go to sleep for 11:00 PM.

PROGRAM YOUR SCHEDULE OR

MODIFY THE DEFAULT SCHEDULE

If the pre-programmed schedule fits your lifestyle, skip the following

section.

1To program the Comfort temperature, select the desired tempera-

ture using the buttons and hold the button until the

icon is diplayed (app. 3 seconds).

2To program the Economy temperature, select the desired tempera-

ture using the buttons and hold the button until the

icon is displayed (app. 3 seconds).

3To program the Vacation temperature, select the desired tempera-

ture using the buttons and hold on the and buttons

simultaneously until the icon is displayed (app. 3 seconds).

4Press the Mode / Return button to exit this function and return to the

normal operating mode.

As an ENERGY STAR Rpartner,

Nuheat has determined that this thermostat

meets the Energy Star guidelines for energy efficiency.

This thermostat is pre-programmed with default Comfort (88°F),

Economy (74°F) and Vacation (74°F) setpoints. If the default

temperature settings suit your personal preferences, skip the following

section.

MODIFY THE DEFAULT TEMPERATURE SETTINGS

TEMPORARY OR PERMANENT TEMPERATURE BYPASS

This operation allows you to temporarily modify the floor temperature

while you are in the Automatic mode. Simply press on or but-

tons to select the desired temperature, or the or button to select

the Comfort or Econo settings you have programmed. This tempera-

ture will be maintained until the beginning of the next programmed

schedule.

You can also switch to the Vacation setting for a prolonged absence

by pressing on the button. In that case, the temperature bypass is

permanent. To return to the normal operating mode, press on Mode /

Return button.

If you wish to immediately return to the programmed settings, press on

Mode / Return button twice.

TECHNICAL SPECIFICATIONS

• Model: NTG5110 (120 VAC)

• Display range: 32°F to 140°F (0°C to 60°C)

• Setting range: 40°F to 104°F (5°C to 40°C)

• Comfort default setting: 88°F (31°C)

• Economy default setting: 74°F (23°C)

• Vacation default setting: 50°F (10°C)

14/05/03 920-115-000-00-1-A 2/2

EARLY START FUNCTION

This thermostat is equipped with a function that enables it to calculate

the optimum time to start the heating system to achieve the desired

temperature setting by the programmed time. It could start the heating

system as early as 6 hours prior if necessary.

Every day, the thermostat will automatically re-evaluate how early to

start heating, based on the previous day’s performance.

The switch on the back of the thermostat is factory-set to Early Start

ON. To turn it off, see SWITCH SELECTION.

WARRANTY

NUHEAT INDUSTRIES ONE (1) YEAR LIMITED WARRANTY

This product is guaranteed against workmanship defects for a one-year

period following the initial date of purchase. During this period,

NUHEAT will repair or replace, at our option and without charge, any

defective product which has been used under normal conditions.

The warranty does not cover delivery costs and does not apply

to products poorly installed or randomly damaged following installation.

This warranty cancels and replaces any other manufacturer's express

or implied warranty as well as any other company commitment.

NUHEAT cannot be held liable for related or random damages

following the installation of this product.

The defective product as well as the purchase invoice must be returned

to the place of purchase or mailed, prepaid and insured, to the

following address:

NUHEAT INDUSTRIES LTD.

USA CANADA

880 Grant Avenue 1689 Cliveden Avenue

Blaine, WA Delta, BC

98230 V3M 6V5

1 (800) 778-9276

www.nuheat.com

NUHEAT is a registered trademark of Nuheat Industries LTD.

SWITCH SELECTION

Function UP DN

SW1

SW2

SW3

SW5

Temperature format °F

Disable Enable

12 h 24 h

Enable Disable

°C

Early Start

Time format

Permanent backlight

This thermostat is factory-set to the following values.

Factory pre-sets

SPECIAL FEATURES

To change these pre-sets:

1Locate the screw at bottom of thermostat. Unscrew.

2Remove thermostat faceplate.

3Locate the switches at the back of the faceplate. Set the switches

to your preferences.

4Put the faceplate back on the thermostat.

5Secure the thermostat with the screw.

12345

GFCI TEST

We recommend you test the GFCI monthly. If the test is not success-

ful, cut power to the heating system and call customer service, or return

the thermostat to your supplier for verification.

1Adjust the setpoint temperature until the heating indicator

( ) appears on-screen.

2Press TEST. The test is successful if the GFCI warning light is ON

and power is cut-off.

3Switch power to Standby, then reset to ON.

Warning light: If this comes on during normal operation, cut power to

the heating system and have an electrician verify the installation.

ELECTRICIAN’S INSTRUCTIONS

FOR MODEL NG110 (120 VAC)

INSTALLATION

This power base is designed to control electric floor-warming systems.

The resistive load must not exceed 1800 watts (NI) @ 120 VAC (15 A).

The thermostat is equipped with a Ground Fault Circuit Interrupter

(GFCI) and therefore the isolation of the line and load are required for

operation. Do not cap all the white wires together. During a ground

fault, both line and load will be cut-off. Connect thermostat as shown on

diagram.

Must be installed in accordance with national and local electrical

codes.

TURN OFF POWER TO THE HEATING SYSTEM AT THE MAIN

POWER PANEL TO AVOID ELECTRICAL SHOCK.

1Connecting wires and mounting power base

•Connect the power base

wires to the supply and load

using solderless connectors

for copper wires.

See diagram.

• Push the excess wire back

into the electrical box to

prevent interference with the

power base.

NOTE: All cables and connections must conform to the local

electrical code.

WARNING: Special CO/ALR solderless connectors must be used

when connecting with aluminum conductors.

2Connecting temperature sensor wire

• The wire must pass outside

the electrical box and follow

the wall down to the floor.

The sensing probe should be

placed in a representative

heat area for maximum

system performance.

•The sensing probe should

be centered between the

wires in the mat. The

temperature sensor wire

cannot cross any heater

wires and the sensing probe

must NOT be directly on or

adjacent to a heating wire.

• Secure the power base with the screw.

• Connect the temperature sensor wire to terminals 3 and 4 on the

power base (no polarity needs to be respected).

• Once the power base is properly installed, mount the faceplate.

14/05/03 920-112-000-00-1-A

NG110

SUPPLY

LOAD