Seitron NEW WAVE, DTP F85 BC0 0SE - Wireless Room Temperature Thermostat Manual

OVERVIEW

• Operating frequency 868.150 MHz
• Redundant transmission by radio command with selectionable transmission time
• Internal sensor and input for remote sensor
• Possibility of locking or limiting the knob
• Low battery indicator
• Heating/Cooling selection can be managed by the thermostat or on the receiver

This device is a radio-controlled electronic thermostat to control the temperature in industrial and commercial spaces as well as domestic environments.
The thermostat can control heating and cooling systems. The LED on the front warns when the batteries are low.
Its main characteristic is the lack of electrical connections; indeed the ON and OFF signals are transmitted to the receiving unit by radio, making this device easy and cheap to install, especially when there is no existing electrical system available.

OPERATION

Heating/cooling mode

By adjusting the JP3 connector, shown by in Fig. 5, the thermostat can be set in Heating or Cooling mode:

• Heating
  Jumper inserted to the left (F of Fig. 5)
• Cooling
  Jumper inserted to the right (G of Fig. 5)

Periodically the thermostat transmits a radio command to the receiver containing the information about the room temperature, setpoint temperature and the heating/cooling status. The receiver starts to compare the desired temperature with the room temperature and adjusts accordingly by turning the relay output on or off.
The receiver can also ignore the heating/cooling setting coming from the thermostat if the same data comes from an associated timer thermostat or if the selection is decided on the receiver using the dedicated input.
The receiver is able to adjust the temperature in the room where the thermostat is installed with the two setpoint temperatures: comfort and economy.
The comfort temperature corresponds to the temperature set on the knob, whereas temperature set on the knob minus a fixed value (set on the receiver) in the heating mode (in the cooling mode, Tcomfort + fixed reduction).
The reduction function can be overridden by the receiver by connecting a hourly programmer to the dedicated input or controlled by an associated timer thermostat. For further information, see the instructions for the receiver.

Selecting the sampling interval

To make sure that the batteries last for a long time, the thermostat waits for a length of time between one transmission and another that can be chosen as 3 or 10 minutes by adjusting on an internal jumper JP2, shown by in Fig. 5.

• Sampling every 10 minutes
  Jumper inserted to the left (C of Fig. 5)
• Sampling every 3 minutes
  Jumper inserted to the right (D of Fig. 5)
• Sampling every 3 minutes with reduced power
  Jumper not inserted (E of Fig. 5)

The 3-minute option should be chosen if used with quick heating/cooling systems, whereas the 10-minute option also allows excellent accuracy and comfort with radiator systems and floor heating systems. If the thermostat is installed in close proximity to the receiver (<15 metres), you can also choose the 3-minute mode with reduced power.
The batteries will last longer when you choose the longer period. Due to the updating period, the output will not automatically be updated when the setpoint knob is moved. You will have to wait for 3 or 10 minutes in the worst case in accordance with the length of time chosen.

Enabling the remote probe

The thermostat leaves the factory set up for operation using the internal probe.
As an alternative to the internal probe, a remove probe can be connected to two terminals shown by in Fig. 5. When connecting the remote probe, remove the jumper JP1, shown by in Fig. 5 to disable the internal probe.
Make sure that you are using the right type of remote probe and observe the maximum length of wires allowed.

Knob

Using the regulation knob , the setpoint temperature can be set around which the temperature check will be carried out in the range of 6.. 30°C.

Limiting the rotation of the knob

The field within which the knob rotates can be reduced by adjusting in the following way:

• Lifting the knob by using a screwdriver as a lever in the appropriate guide .
• Pull out the mechanical clamps set on the side of the knob housing and position them as shown in the example in Fig. 4 with and . The field of rotation is reduced in this way as in the arch shown by .
• Reinsert the knob by positioning it in the right angle so that it correctly comes into connect with its spindle and then pressing it down to the bottom.

Red LED: low battery warning

The red warning LED on the front of the product notifies when the batteries are low and must be replaced. The LED usually remains always off, whereas when it shows that the battery is low it comes on for a moment every 20 seconds approximately.
Furthermore, when the batteries are inserted for the first time, the red LED comes on and stays lit for 2 seconds. This indicates that the batteries have been inserted correctly and that the thermostat is working properly.
The LED also performs a function during the test stage. (See 'System configuration' paragraph.)

SYSTEM CONFIGURATION

Before installing the thermostat in the desired position, it is necessary to check that the receiver correctly receives its signals. The operation is carried out by enabling the 'Test' function, described below.
Open the thermostat, as shown in the 'Installation' paragraph, and insert the batteries while respecting the correct polarity; in the internal position of the batteries can be seen. When the batteries are inserted for the first time, the red LED comes on and stays lit for 2 seconds. This indicates that the batteries have been inserted correctly and that the thermostat is working properly.
The 'Test' function of the thermostat is enabled by pressing the 'Test' button for a second, shown by in Fig. 1-5. P4 ress the 'Test' button again to end the function.
The 'Test' button can also be pressed without removing the cap by adjusting with a small screwdriver through the front slots as shown by in Fig. 1.
In the 'Test' mode, the thermostat continuously transmits ON and OFF commands to the receiver with a pause of approximately 2 seconds between one and the next. The LED flashes every 2 seconds. If the 'Test' mode isn't finished using the button, it will end automatically after approximately 12 minutes.
The 'Test' mode must be used to self-learn the address code of the thermostat on the receiver.
When the thermostat is positioned in the desired area, make sure that it still communicates properly with the receiver.
If the thermostat is positioned too far away from the receiver, the relay output will always remain on or off. In this case, it is recommended that a better position is found, possibly closer to the receiver, and make sure that it isn't in the vicinity of metal screens or reinforced concrete walls which could weaken the radio transmission. The signal quality can be monitored in the receiver; see the relative documentation for further information.

INSTALLATION

Before installing the thermostat, make sure that the radio signals transmitted are correctly received by the receiving unit.
We hereby remind you that the thermostat should be installed away from sources of heat, drafts and particularly cold or hot walls for the correct regulation of the room temperature.
Perform the following operations to install the thermostat:

• Remove the knob by using a small screwdriver as a lever in the appropriate guide, shown by in Fig. 1-2.
• Remove the cap by using a screwdriver on the plastic teeth, shown by in Fig. 1-2-3, by applying a little 10 pressure between the tooth and the hole in the plastic, without pressing down directly on it to make sure that it doesn't break.
• Correctly insert the batteries respecting the correct polarity. Do not use dead batteries. Use alkaline batteries and perform the Test function. (See 'System configuration' paragraph.)
• Having identified the best position for installation, fix the bottom of the thermostat to the walls using two screws, using the two holes with a distance between the 60mm axes.

Take care not to damage the internal electronic circuits when working with tools close to the holes of the screws.

• Configure the thermostat; see the 'OPERATION' or 'SYSTEM CONFIGURATION' paragraph.
• Close the thermostat by positioning the cap so that the knob's spindle comes into contact with the relative hole and then press it slightly until the four plastic teeth click.
• Reinsert the knob by positioning it in the right angle so that it correctly comes into connect with its spindle and then pressing it down to the bottom.

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