Trueway DIGITAL BUTTON TX892 Series User manual

MODEL
TX892OF220-V2E
APPLICATIONS
TX892 Series is digital button type thermostat with many variants suitable for 2-pipe cooling & heating fan coil units
Available in basic standalone and Modbus communicating variants.
Fitted with built-in N TC 10K sensor and optional humidity sensor.
Several addon functions like remote sensor, key card can be chosen as per site requirements.
FEATURES
♦Classic button type design
residential buildings
♦Applicable for 2-pipe FCU
cooling&heating,
♦ Sky-blue LCD display
♦Special colors casing upon request
with RAL number can be provided
♦Either room temperature or set-point
is displayed.
♦Manual & Automatic fan functions
♦User setting can be kept during
♦Fan load 5A resistive and inductive
of 3A
♦Big LCD with English display
♦Temperature unit C&F
♦Regular color available in Black
and White body
♦EC motor variants available
♦Fits in 75mmx75mm electrical
junction box
1
TX892OF220-V2K
TX892OF024-V2
DIGITAL BUTTON SERIES
DIGITAL BUTTON SERIES
Back-light is available for sky blue TN LCD.

W
LCD DISPLAY & KEYS DESCRIPTION FUNCTION
2-pipe FCU cooling&heating,
Simple on-o output.
3 Speed Fan + Auto Fan Control
Energy Save Mode and
Comfort Mode Settings
Key Pad Lock
SPECIFICATION
♦Power Supply: 85-240VAC / 24VAC• Frequency: 50~60Hz
♦Function: Cooling/Heating
♦Relay Life: 220±10% VAC, 3(5)A, 100,000 times
♦Wiring Max: 16AWG
♦Sensing Element: 10K(@25°C) NTC
♦Display Accuracy: 1°C, Set-point accuracy: 1°C/step
♦Set-point range: 10-32°C(50-90°F) • Display range: 0-50°C
♦Protection Glass: IP 20 • Operation Temperature: -18~49°C
♦Shipping Temperature: -35~65°C • Suitable System: 2-pipe
FCU cooling&heating,
♦Suitable Valve: 2-line/3-line valve • Relative Humidity: 10~90%
♦Installed on 75mm x 75mm box
ORDERING PART NUMBERS
TX892OF220-V2E 85-240VAC 2-PIPE
2-PIPE
2-PIPE
ON-OFF VALVE
ON-OFF VALVE
ON-OFF VALVE
EXTERNAL SENSOR
TX892OF220-V2K 85-240VAC HOTEL KEYCARD
TX892OF024-V2 24VAC N/A
PART NUMBERS OPERATING VOLTAGES APPLICATIONS VALVE TYPE ADDON FUNCTIONS
ABBREVIATION
CASING/COVER COLOR BACKLIGHT COLOR
WHITE
BLACK B
*ordering example TX892OF024-V2-WSB
Sky Blue backlight + Black letters (TN LCD) SB
2
M
Fan Speed
Low, Med,High,Auto
Temp. Display
Sleeping Mode
Room Temp.
Set-Point
Cooling mode
Heating mode
Mode key Power key
Fan key UP/DOWN Key
Icon Icon
Description Description
Either Room Temperature or set-point
is Displayed
DIGITAL BUTTON SERIES

OPERATION INSTRUCTION
ON-OFF VALVE /COMPRESSOR CONTROL
Thermostat acquires the room temperature via its
integrated sensor and maintains the set-point by
simple on-o output.
POWER ON OR OFF
By pressing POWER button
INCREASE / DECREASE
In the ON state, press UP or
DOWN to increase or decrease
the setting parameters.
FAN OPERATION
Fan can be selected as manual or automatic 3-speed operation. In manual
mode, the fan will be switched to the selected speed via control output
Gh,Gm,Gl (by pressing FAN button ). In automatic mode, the fan speed will
set-point. When room temperature reaches set-point, valve will be closed
meanwhile fan will be turned o as well.
HEAT/COOL/VENT
Pressing the MODE button to select heat
cool
TEMPERATURE DISPLAY
Either room temperature or set-point is displayed
Noted: When pressing UP or Down button, the
set-point will be displayed, When no operation
(button pressed) after a few seconds,the room
temperature will be display instead.
COMFORT MODE
In the comfort mode, the set point can be
changed by pressing UP or DOWN buttons.
and manual heat/cool changeover.
KEY LOCK
The default status of “Key lock” is all keys available and it can be changed in
ISU mode. Key lock function includes the following settings: All keys are
available (Default) Mode button is locked out. Fan and Mode button are
locked out. All buttons are locked.
COMPRESSOR OFF TIME DELAY FUNCTION
3
DIGITAL BUTTON SERIES

If want to revise the other setting items, please repeat above step 2 and step 3. while setting, press “ ” to exit, the setting items and
2.Press “ ” or “ ” to select the ISU setting items from 1-10 .
ISU CODE DESCRIPTION POSSIBLE OPTIONS
1 SYSTEM TYPE
0 HEAT ONLY
1 COOL ONLY
2 TWO PIPES 1H1C MANUAL(DEFAULT)
2 TEMPERATURE UNIT F : ° F
C : ° C(DEFAULT)
3 FAN CONTROL TYPE
AO : AUTO ONLY
CO: CONSTANT ONLY
BO : BOTH(DEFAULT)
4 KEYPAD LOCK OUT
0 : ALL KEYS ARE AVAILABLE (DEFAULT)
1 : MODE BUTTON IS LOCKED OUT,AFTER LOCKED OUT,
WHEN YOU PRESSING MODE KEY, IT WILL DISPLAY “LOC”
2 : FAN AND MODE BUTTON ARE LOCKED OUT, AFTER
LOCKED OUT,WHEN YOU PRESSING FAN OR MODE BUTTON,
IT WILL DISPLAY”LOC”
3 : ALL BUTTONS ARE LOCKED,AFTER LOCKED OUT WHEN
YOU PRESSING ANY KEYS, IT WILL DISPLAY”LOC”
5 DISPLAY TEMP. ADJUSTMENT -9°C/ °F ~ + 9°C/°F
6 RESERVED FOR ADDITIONAL ISU SETTINGS.
7
8 SENSOR SELECTION
IN : INTERNAL SENSOR, OU : EXTERNAL SENSOR, IF CHOOSING
OU EXTERNAL SENSOR, THE ROOM CARD
FUNCTION WILL NOT BE AVAILABLE (DEFAULT IN)
9 BACK-LIGHT TIME SETTING 10-90 SECONDS(DEFAULT 30 SEC., USER CAN ADJUST
BACK-LIGHT TIME ACCORDING TO ACTUAL DEMANDS)
10 RESERVED FOR ADDITIONAL ISU SETTINGS.
4
SETUP FUNCTION SETTINGS AND OPTIONS
1 .Press “ M ” and “ ” key for 5 seconds to enter ISU setting mode, the ISU code will be flashing.
3.Press “ M ” and the symbol of “ ” will be displayed, press “ ”or “ ” to revise the values of the setting items, press “ M”to confirm.
values as below form shown.
DIGITAL BUTTON SERIES
RESERVED FOR ADDITIONAL ISU SETTINGS.

9 TERMINAL POWER BOX
*wiring is subject to change without notice based on addons
PRODUCT DIMENSION
5
NOTE
♦ The thermostat is high voltage input, please do wiring with technician.
♦ If the thermostat was burned by accidently, please do not wiring it again by yourself, try to check it with a professional technician or contact
with our manufacturer.
NO
1LIVE IN
3MEDIUM SPEED FAN
HIGH SPEED FAN
4LOW SPEED FAN
2
DESCRIPTION
5VALVE OPEN
6VALVE CLOSE
7
COM FOR EXTERNAL SENSOR
8
NEUTRAL IN
9
L
FM
FH
FL
NO
NC
COM
N
AI EXTERNAL SENSOR
TERMINALS NO
1LIVE IN
3MEDIUM SPEED FAN
HIGH SPEED FAN
4LOW SPEED FAN
2
DESCRIPTION
5VALVE OPEN
6VALVE CLOSE
7
COM FOR KEY CARD
8
NEUTRAL IN
9
L
FM
FH
FL
NO
NC
COM
N
DI KEY CARD
TERMINALS NO
124V ACTIVE
3HIGH SPEED FAN
220V LINE FOR 220V FAN
4MEDIUM SPEED FAN
2
DESCRIPTION
5LOW SPEED FAN
624V NEUTRAL
7
8
VALVE OPEN
VALVE CLOSE
9
R
FH
LINE
FM
FL
C
NC
NO
TERMINALS
WIRING DIAGRAM
TX892OF220-V2E
Fan
85-240VAC
TX892OF220-V2K
Fan
85-240VAC
TX892OF024-V2
Fan
24VAC
86mm
60mm
53.5mm
60mm
13.1mm
DIGITAL BUTTON SERIES

INSTALLATION AND COMMISSIONING
T uch makes you Comfortable
O ce:
Trueway Controls Hong Kong Limited
Room 1318-19 Hollywood Plaza,
610 Nathan Road, Mongkok,
Kowloon, Hong Kong.
Factory:
4F, Building A2,
Nanxi Industrial Area,
Xiangzhou District,
Zhuhai, China.
TROUBLE SHOOTING TIPS
IF... THEN...
The fan doesn’t work
Heating system does not turn on Set the mode to Heat by pressing the Mode button.
Wait five minutes for the heating system to respond.
Cooling system does not turn on Set the mode to Cool by pressing the Mode button.
Wait five minutes for the cooling system to respond.
The Mode button does not work
Check whether the Fan mode is set to Auto
Check whether the heating or cooling system works well.
Check whether the keypad is locked out (ISU mode item 4)
The Fan button does not work
Check whether the system is working in energy saving mode.
Check whether the key pad is locked out (ISU mode item 4)
The Up or Down button does not work
Check whether the system is working in energy saving mode.
Check whether the key pad is locked out (ISU mode item 4)
6
To take the front panel and back plate apart by
screwdriver
Wiring on the terminals of the back plate according
to above wiring diagram,then fix the back plate on the
junction box by screw driver
Recombine the front panel and back plate
by contact pins
Check whether the fan mode is set to Auto
Check whether the heating or cooling system works well or not