White Rodgers BNP125 Wiring diagram

Line Voltage Non- Programmable Thermostat
Installation Instructions & User Guide
Congratulations on the purchase of your
White-Rodgers™thermostat!
Save these instructions for future use!
Questions? Contact White-Rodgers
TM
Customer Service at 1-877-654-9394
For BNP125, BNP150C, BNP125C, 1E65-140
37-7460A

WARNING WARNING
Before installing and operating this product, the owner and/or installer must read,
understand and follow these instructions and keep them handy for future reference.
If these instructions are not followed, the warranty will be considered null and void
and the manufacturer deems no further responsibility for this product. Moreover,
the following instructions must be adhered to in order to avoid personal injuries or
property damages, serious injuries and potentially fatal electric shocks. All electric
connections must be made by a qualied electrician, according to the electric and
building codes effective in your region. Do NOT connect this product to a supply
source other than 120 VAC or 240 VAC, and do not exceed the load limits specied.
Protect the heating system with the appropriate circuit breaker or fuse. You must
regularly clean dirt accumulations on the thermostat. Do NOT use uid to clean
thermostat air vent. Do not install thermostat in a wet place. However, installing it
in isolated walls is allowed.
Note:
When a part of the product specication must be changed to improve operability or
other functions, priority is given to the product specication itself. In such instances,
the instruction manual may not entirely match all the functions of the actual product.
Therefore, the actual product and packaging, as well as the name and illustration,
may differ from the manual.
The screen/LCD display shown as an example in this manual may be different from the
actual screen/LCD display.

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1. Description
This thermostat can be used to control electric heating units such as electric
baseboards, convectors, or aeroconvectors. It keeps the temperature of a room at
the requested set point with a high degree of accuracy. This product is designed for
installations with electrical current - with a resistive load - ranging from 1.25 A to 12.5
A (120/240 VAC). It possesses a user-friendly interface. Furthermore, it gives you the
possibility to control the temperature of a room with great precision.
This thermostat is not compatible with the following installations:
• electrical current higher than 12.5 A with a resistive load (3000 W @ 240 VAC and
1500 W @ 120 VAC);
• electrical current lower than 1.25 A with a resistive load (300 W @ 240 VAC and 150
W @ 120 VAC); and
• central heating system.
Parts supplied:
• one (1) thermostat;
• wall mounting plate located at the back of the thermostat;
• two (2) mounting screws;
• two (2) solderless connectors suitable for copper wires.

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2. Installation
Selection of the thermostat location The thermostat must be mounted on a
connection box on a wall facing the heating unit, at around 1.5 m (5 feet) above the
oor level, on a section of the wall exempt from pipes or air ducts.
Do not install the thermostat in a location where temperature measurements could
be altered. For example:
• close to a window, on an external wall, or close to a doorleading outside;
• exposed directly to the light or heat of the Sun, a lamp, a replace or any other heat
source;
• close or in front of an air outlet;
• close to concealed ducts or a chimney; and
• in a location with poor air ow (e.g. behind a door), or with frequent air drafts
conditions (e.g. head of stairs).
Thermostat mounting and connection
1. Cut off power supply on lead wires at the electrical
panel in order to avoid any risk of electric shock.
2. Ensure that the air vents of the thermostat are clean and clear of any obstruction.

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3. Using a screwdriver, loosen the screw retaining the mounting base of the
thermostat until you feel a loose (do not completely remove the screw).
Then, remove the mounting base at the back of the thermostat by tilting it
downward, then towards you.
4. Align and secure the mounting base to the connection box using the two screws
supplied.

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5. Take the wires from the wall through the hole at the base of the mounting base
and connect them using the supplied solderless connectors. When making
the connection with aluminum wire, make sure that you are using connectors
identied CO/ALR. Please note that the thermostat wires do not have polarity.
Therefore, the way they are connected is not important.
2-wire installation
4-wire installation

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6. Place all the wires into the connection box.
7. Align the little slots located on the top of the thermostat
with those on the the mounting base and secure the
thermostat to the mounting base. Note that you can also
position the thermostat on the left or the right side of the
junction box (see the illustrations below). Then, tighten
the screw at the bottom of the unit.
8. Turn on the power.
9. Set the thermostat to the desired setting (see the
following section).

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3. Operation
Powering on for the first time
When powering on for the rst time, the thermostat is initially set to Day mode .
The temperature is displayed in Celsius and is set at 21 degrees by default.
Temperature set points
The gures displayed above the pictogram indicate the temperature set point. It
can be displayed in degrees Celsius or Fahrenheit (see “Display in degrees Celsius/
Fahrenheit”).
ambient
temperature/
timer
heating power
used indicator
automatic mode
lock mode
fan mode
top button
pictograms
frost-free warning
day mode
night mode
bottom button

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To adjust the set point, just press down the top button to increase the value, or the
bottom button to decrease it. Set points can be adjusted by increments of 0.5°C (1°F).
To quickly scroll through the set point values, press and hold down the button. The
minimum set point is 3°C (37°F), and the maximum set point is 30°C (86°F). In Day
mode, you can turn off the thermostat by lowering the set point below 3°C. The set
point value displayed will be OFF, and heating system
start up will be impossible.
Day mode and Night mode
The thermostat includes a Day mode and a Night mode , both of them having
their own independently adjustable and recorded set point. When switching from
one mode to the other, the system will automatically use the temperature set point
corresponding to the Day/Night mode selected. The standard factory set point
adjustment is 21°C (70°F) for the Day mode, and 18°C (64°F) for the Night mode.
The current Day/Night mode selection is indicated on the display by the Sun or Moon
icon. In order to manually switch from one mode to the other, simultaneously press
down the two buttons and release them immediately.

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Night mode timer
The Night mode features a timer that automatically returns to the Day mode after
a selectable time period. This timer allows the temporary use of a temperature set
point. The standard factory adjustment of the timer is 8 hours. With this adjustment,
the thermostat automatically returns to Day mode 8 hours after being switched to
the Night mode. For example, if you want a night temperature lower than the day
temperature, both Day/Night mode set points will rst have to be set at the desired
temperatures. Before bedtime, the Night mode temperature set point will be
activated by switching manually to the Night mode. The timer is set for the duration
of the night. The thermostat will automatically return to the Day mode at the end
of the night, and the Day mode temperature set point, which is higher, will become
effective at this time.
Night mode timer adjustment procedure
1. If necessary, adjust the Day/Night mode set points at the desired temperatures. If
needed, switch from one mode to the other by simultaneously pressing down the
two buttons and releasing them immediately.
2. From the Night mode, simultaneously press down the two buttons for more than 3
seconds until the moon icon blinks.
3. If needed, adjust the timer by pressing down the top button to increase the value,
or the bottom button to decrease it. The adjustment range is from 1 hour to 999
hours. To quickly scroll through timer values, press and hold down the button.
4. When the adjustment is completed, release the buttons and wait for 5 seconds to
exit the adjustment function.