Dimplex DTW16S Instructions Manual

SUMMARY

• OPTIONS SELECTION

At the back of the thermostat, there are 2 selection switches to set at your
preferences.

• Temperature in °C or °F

• Early Start function.

• TO SET TIME AND DAY

Press on DAY, HOUR and MIN buttons to adjust time and day.

• TO RECORD THE (COMFORT) SETPOINT TEMPERATURE

Select chosen setpoint temperature by using or button. Press on
button (2 to 3 seconds) until icon appears on display.

• TO RECORD THE (ECONOMY) SETPOINT TEMPERATURE

Select chosen setpoint temperature by using or button. Press on
button (2 to 3 seconds) until icon appears on display.

• TO RECORD THE (VACATION) SETPOINT TEMPERATURE

Select chosen setpoint temperature by using or button. Press on
button (2 to 3 seconds) until icon appears on display.

• OPERATING MODES

To select an operating mode, use Mode/Return button.
AUTO : Runs the programs. or shows temperature setting and

can override temporarily your programming up to the next program.

MAN : Maintains the selected temperature. or changes the temperature

setting.

*Percentage (%) of energy sent to the heating system to maintain the desired
temperature.

SUMMARY

INSTALLATION

This thermostat is designed to use a floor- heating sensor to regulate room tem­perature.
The DTW16S has two temperature sensors. The first one, installed in the box,
controls the ambient temperature. The second one, installed in the floor, limits the
floor temperature. Electricians or experienced technicians should install the ther­mostat.
This thermostat should be connected on a circuit equipped with a fuse or a
circuit breaker. It must be installed on a certified electrical box. For a new in­stallation, choose a location about 1.5 meters above the floor, with good air
circulation. The thermostat must be installed on an inside wall. Avoid locations
where there are air drafts (top of a staircase, air outlet), dead air spots (behind
a door), direct sunlight or concealed chimneys or stove pipes.

TURN OFF POWER TO THE HEATING SYSTEM AT THE MAIN POWER PANEL TO AVOID ELECT­RICAL SHOCK. Keep air vents of the thermostat clean and free from obstructions.

PARTS INCLUDED

- One (1) DTW16S (230 VAC) thermostat

- One (1) temperature sensor with a 3 meter extension

- One (1) wall plate (in certain countries)

1. Installation of thermostat

Turn off power to the heating system at the main power panel to avoid electrical
shock.

Unscrew and remove the front part of the thermostat
from the base.
Please take note that the screw cannot be completely
retracted.

If your thermostat is equipped with a wall plate

Before making the connections, make sure that the base
covers the electrical box entirely. If not, insert the wall
plate on rear of the base. (The wall plate can be used
to cover the plate for aesthetics.)

Connect the wires (see section 1.1).
Connect the sensor (see section 1.2).

Secure the base to the electrical box anchorage. (The
head of the screw must be less than 2mm
of¨thickness.)

Set the switches located at the back of the front part
of the thermostat before replacing it in the base.¨(see
section 1.3)

Affix the front part of the thermostat to the base using
the enclosed screw. You can now turn the power back
on.

DTW16S

DIGITAL THERMOSTAT DTW16S (230VAC)

N177/R01 (20.8.07)

2

2. Wire connections

3. Connectiong temperature sensor wire

Connect the temperature sensor wires to the sensor terminals located at the
back of the thermostat (no polarity needs to be respected).

Note: Do not place the sensor probe directly next to an element but rather, for

maximum performances, the sensor probe should be centered between the wires
in the mat (80 °C max.). The temperature sensor wire cannot lay across any
heater wires.

Adjusting the floor’s maximum temperature

When the floor sensor is installed, the temperature of the floor will automati­cally be limited the set maximum regardless of the ambient setpoint. To adjust
the floor’s maximum temperature, press on the adjustment button (see drawing
for its position) using a pointed object, and use the and buttons until the
desired setpoint appears.

4. Configuration of switches

a)Early Start function

The thermostat is providing a built- in function enabling it to
calculate the optimum time to start the heating system to achi­eve the desired temperature setting at the programmed time. To
enable this function, set the switch E.S. (#1) to “ON”.

b)Temperature in °C or °F

The default configuration of the

DTW16S is in °C. If you wish to

change the temperature to °F, push the switch #2 upward.
Please note that if you change from °C to °F, your Comfort and
Economy settings will need to be reconfigured as well.

POWER—UP

When power is applied for the first time, the
display must show the time 0:00, the floor tem­perature and the Manual mode icon ( ). Other
information might show up on the display if
installation is defective or does not comply with
the instructions.
The message L0 or HI will appear on the dis­play if the temperature sensor is defective or the
temperature is below 0 °C or higher than 60 °C.
Also, if the LO message is displayed, the heating
indicator will be present on display and the relay
will be closed (current going in the load).

OPERATING MODES

The DTW16S has two (2) operating modes.

MANual ( )

This mode allows you to maintain a constant temperature.

1) To activate this mode, press on Mode/Return button to display the icon.

2) Set the desired temperature using the buttons or select the predetermined ,
or settings.

AUTOmatic ( )

This mode executes your own programming.
To activate this mode, press on Mode/Return button to display the icon. The
Icon indicates which temperature setting is used. Also, the icon of the program
number will be shown.

Vacation function

This function sets your thermostat to your specified Vacation temperature. You
can switch to the Vacation setting for a prolonged absence by pressing on the
button. The display will show the icon. The temperature will remain at this
setting until it is returned to the normal operating mode by selecting the Mode/
Return button. The Vacation function is also accessible through the CT240
telephone controller. If you wish to immediately return to the programmed
settings, press on Mode/Return button.

1. PROGRAMMING

Programming the time and day

1) Set the time using the Hour and Min buttons.

2) Set the day using the Day button.

Programming the 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 .

To program your settings

a) To program the Comfort temperature, select the desired setpoint using

the buttons and press the button until the icon is displayed
(app. 3 seconds).

b) To program the Economy temperature, select the desired setpoint

using the buttons and press the button until the icon is
displayed (app. 3 seconds).

c) To program the Vacation temperature, select the desired setpoint using

the buttons and press on the button until the icon is dis­played (app. 3 seconds).

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

normal operating mode.

Schedule programming

The DTW16S allows 4 setting changes for each day of the week. There are no
pre- set programs. The programs are tailored to perfectly adapt to your life style.
The principle is very simple. For each day, enter the time at which you wake up
(P1), the time you leave for work (P2), the time you arrive back home (P3) and
the time you go to bed (P4).

For savings to be obtained, you must lower the temperature for a period of at
least 2 times the delay required to bring the temperature back to your comfort
level.

Example: If your system takes one hour to go from your saving temperature level
to your comfort temperature level, it is useless to lower the temperature for a
period less than 2 hours.