TRUEWAY TX-811 Digital Thermostat
Introduction
TX-811 series thermostats are stand-alone digital thermostats with LCD displays. Designed to control fan speed, temperature, and on/off the valve in the fan coil unit system. Models are suitable for heating and cooling control of 2-pipe fan coil units. The fan speed can be manually controlled by the fan speed key or changed to high/middle/low speed automatically in auto mode.
Sleeping function
The temperature will be raised 1’C every hour until 26’C under this mode. Especially useful during mid-night in spring and autumn
Features
- Large digital LCD display with blue backlight
- Manual 3-speed or auto fan
- On/off output for valve
- Sleeping function
- Mounted onto standard 86*86mmjunction box
- Healing/cooling mode control
Specifications
- Application: 2-pipe FCU
- Power supply: Ac220±10% 50HZ/60Hz
- Setpoint range/Setting unit:10’C -30’C/1’C per step
- Ambient conditions:0’C -50*C Humidity:< 95%
- Temp. Sensor: NTC 10K(25’C)
- Mode setting: Cool and heating
- Fan speed: Low, Mid, High, and Auto
- Control type: On/off control
- Accuracy:±1 ‘C
- Enclosure: Fire retardant PC ABS
- Wire port::t:1.Smm’
- Installation/Dimension: Vertical/ 86x86X40mm(WxH•D)
LCD display
Operation Manual
- Press
key to turn on or turn off the thermostat OFF, “
” coin and room temperature will be shown on the screen when powering off under the activity of NO.5 sleeping function. - Press
to increase 1’C per step, while press 
to decrease 1’C, within the setpoint range. - Press
to switch the running mode:·
(Cool) or “
“(Heat).
- Press
to switch fan speed: 
(LOW)”
(Mid),”
“(High)”
“(Auto). - A. As setpoint 3’C or lower than the room temp High speed is switched automatically.
- B. As setpoint approx. 2’C lower than the room tempmid speed is switched automatically.
- C. As setpoint approx. 1″C lower than the room temp low speed is switched automatically.
- Press
- Sleeping function:
- Press until the coin
flash on screen, press to confirm when power is on - Press until the coinflash on screen, press to cancel when power is on
- Press
- Temperature compensation:
- Press “” and 3s to enter into the mode under power off, press “to increase 1″C per step, press ” “to decrease 1″C per step, within setting range -9″C-9″C, press”” to confirm.
- Press both and to enter into the memory function setting under power off, pressorto switch on/off. All status, including fan speed, mode, temperature, and power on/off, will be stored when power fails.
- Press “
Dimensions
Wiring diagram
Warning
- installed by the technician.
- Make sure the power is off.
- Wire strictly to the wiring diagram.
- The rates current load of our thermostat is 3A, so make sure the current for FCU is less than 3A.
- 0ne thermostat is for one fan coil unit only.
- Avoiding burnout with large current.
Installation instruction
- Use the screwdriver into the gap to remove the frame.
- Complete electrical connections correctly as to the wiring diagram.
- insert the thermostat and stuck it into the iron holder.
REFERENCE:
DOWNLOAD MANUALS:
TRUEWAY TX-811 Digital Thermostat Product Data Sheet
