Romstal WT-11 User manual

Wireless Room Thermostat WT-11
This surface-mounted radio thermostat has been developed to be able to switch electric and conventional heating
systems on and off using a set temperature and time.
Functions
Large display can be clearly read with the background lighting.
Easy to fit thermostat and receiver.
Six buttons make it easy to use.
4 periods of each day programmable(5+1+1)
The display shows the set temperature as well as the measured temperature, time.
Temperature display in degrees Celsius.
The thermostat is supplied with a wall-fixing frame, base and a very compact receiver (surface-mounted).
Technical Data
Thermostat Operating Voltage: 2 x AAA 1.5 V, alkaline batteries.
Backup Storage: EEPROM
Receiver Current Load: 220V/10A
Frequency: 868 MHz.
Channel selection: By programming the thermostat and the receiver.
Switching options: 5+1+1 day, 4 periods each day.
Receiver switch contacts: NO and NC.
Temperature settings: 5°C ~ 30°C, 0.5°C increments.
Accuracy: +/- 0.5°C (+/- 1°F).
Thermostat dimensions: Surface mounted, 135mm x 88 mm x 22mm.
Receiver dimensions: Surface mounted, 86mm x 86 mm x 18mm.
Color: White
IP protection rating: 20.
Certification: CE.

Wireless Room Thermostat WT-11
Mechanical Design
The unit consists of two parts:
• A plastic housing with digital display, which accommodates the electronics, the operating elements and the built-in
room temperatures sensor.
• A mounting base. The housing engages in the mounting base and snaps on. The base carries the screw terminals.
RRG. Schedule Setting
Pic. 1
The weekday is fixed from Monday to Sunday(1~7), each schedule have 4 periods(1~4). Each press of PRG button can
into next item setting. 2
1) Press PRG and hold for 3 seconds, the minutes flash(A), change the values by up and down button.
2) Press PRG, the hour digit flash (B) , change the values by up and down button.
3) Press PRG, the temp. digit flash (C), change the values by up and down button.
3) Press PRG, the PRG digit (D) change to PRG 2 automatically. The minutes of PRG 2 flash. Repeat the same method
to set the time and temp. of each period.
4) After schedule done, press Return Button to main display.
Example:
Clock Adjust & Mode Select Button
Return to Main Page Button
Weely Programmable Button
On/off Button
Weekday
Clock
emperature Display
A
C
B
D

Wireless Room Thermostat WT-11
Monday to Friday Saturday Sunday
Period 1 2 3 4 1 2 3 4 1 2 3 4
Time 6:30 8:00 18:00 22:30 8:00 10:00 18:00 23:00 9:00 12:00 19:00 0:00
Temp. 21°C 18°C 21°C 16°C 21°C 21°C 21°C 16°C 23°C 21°C 16°C 21°C
Time Adjust and Mode Temp. Setting
To set the time and day with following steps(Pic.2):
1). Press Menu button and hold 3 seconds, the minutes display flash(E), change the values by up and down button.
（ each press is one minutes ）
2). Press Menu button, the hour display flash(F), change the hour by up and down button. (each press is one hour)
3). Press Menu button, the day display flash(G) as a number, change this value by up and down button. Use1 for Monday;
2 for Tuesday, 3 for Wednesday, 4 for Thursday, 5 for Friday, 6 for Saturday, 7 for Sunday.
After time and day adjust, you can continue following step to pre-set the mode temp.
4). Press Menu button, the comfort mode temp. display flash(Pic.A), change the values by up and down button.
5). Press Menu button, the Energy-saving mode temp. display flash(Pic.B), change the values by up and down button.
5). Press Menu button, the Holiday mode temp. display flash(Pic.C), change the values by up and down button.
The comfort function is displayed as a symbol (e.g. 25.5°C).
The energy-saving function is displayed as a symbol (e. g. 20.5°C).
The holiday function is displayed as a symbol (e.g. 10°C).
Temp. Calibration
The measured temperature is easy to calibrate. Only use this function if the measured temperature deviates (this happens
if you place the thermostat in a drawer or similar).
-Turn Thermostat off, press and hold the Menu button for 3 seconds; the code 0007(ID Code) will be
shown in the top left.
-Use the up and down buttons to set the temperature value. This value can be adjusted by -8 to +8°C.
-Press the Menu button on the thermostat to save this function and leave the menu
E
F
G
Pic.A Pic.B Pic.C

IP Address Setting
2)
3)
4)
5)
6)
7)
8)
The thermostat and the receiver have a binary code with which the channel can be set. The receiver has a ID
study button to link it with the thermostat, which in turn has a button to link it. This linking has usually already
been activated. Should this not be the case, the following steps can be taken.
1). Press the IP SET button on the receiver ; the green LED light(G) will flash .
2). Turn off transmitter, press and hold the Menu button on the thermostat for 3 seconds. You will hear a buzzing
sound and the LED light(G) on the receiver will stop blinking.
3). The location (channel) will be shown on the thermostat display, press Menu button again. The thermostat and
the receiver are now linked.
Wiring Diagram
Type A: Voltage-free output wiring diagram Type B: 230V output wiring diagram
Receiver Size