AirTek NFT28U User manual

13826C_e- NFT28U.doc
14/11/10
Field Control Layer Device
Group LCD Touch Control Panel
【Description】
NFT28U is DF series networking Fan Coil Unit controller dedicated on-site
operation man-machine interface. It has a two-wire RS485 network
communication ability, up to 32 DF controllers can be connected to an area
network. Users can use NFT28U to operate an
y
controller on the network b
y
group or individual manner, for example, to perform a manual start-stop
operation, set the air condition mode, set temperature setpoint, chan
g
e the
fan speed and enable the timer shutdown functions. It also ma
y
facilitate the
user to examine, settin
g
, chan
g
e and confirm each kind of control parameter
value from an
y
controller in the network, for example the present temperature
value, temperature settin
g
, air conditionin
g
mode, fan speed, off timer and
alarm messages. NFT28U has a large-scale graphic TFT LCD screen and
four dedicated function keys for user quick operate. Users can use NFTeditor
software to edit screen pages, even corporate image or promotion leaflet can
be loaded to the screen when in non operation mode, This not only enhance
the added value of products but also enhance the effectiveness of corporate
image advertising.
【Features】
32 bit microprocessor, high precise operation.
MODBUS communication can be linked AIRTEK DFC series SCnet layer communication.
2.8 " TFT LCD touch screen, 65536 color, resolution 320 * 240 pixel, displays color up to 65,536 colors, with Simplified / Traditional
Chinese / English operation menu, menu settings can be directly switched Control screen divided into the main control screen and the
advanced settings screen, user can access easily to the main operating screen through control panel buttons.
The main control provides four types of background styles to choose, each with air-conditioning, heating, fan, three different pages,
total 12 pages..
With Advanced Settings function selection screen, under the main control screen display state, click anywhere on the screen to enter
the advanced screen, there is mode selection for comfortable sleep, energy saver, schedule on/off, timed shutdown, system
configuration, product information, passwords etc.
Can be transmitted via Mini USB interface to update the firmware and upload pictures Information
A variety of images can be stored in the unit by using the NFTeditor software for marketing purpose, can set up to 18 pictures, display
unit act as an advertising panel when in “no operation” mode.
With multiple language, lock feature, temperature unit selectable, the background setting, buzzer, media player, brightness, clock
mode, the clock setting adjustment parameter setting functions.
Clock mode, when connected, it can be either select monitor through read by clock or automatic synchronization with network time. It
can also accept central monitoring of Internet time correction, so that the controller is at the same time for all systems. When no
monitor connection, you can choose to write the clock, the panel displays time will link synchronization with the controller.
【Specification】
Power Supply : 5~12VDC, 2VA (Power source can be supply form DFC controller.)
Microprocessor : 32 bit high speed processor. 64K RAM & 384K Flash memory.
SCnet Port : MODBUS RTU RS-485 bus, communication speed 9,600 bps, max. transmission distance 1200 meters.
LCD Display : 2.8” TFT LCD touch screen, 65536 color, resolution 320*240.
Memory : 8M text font storage and end user data memory space.
USB Port : Mini USB interface, update firmware and download scada data.
Real time Clock : Ultra capacitor power failure back up, support up to 48hours backup for clock after power failure.
Environment : 0~50℃, 20~90%RH non-condense.
Function Key : + + + four function keys. start/stop, &set temperature, fan speed
Buzzer : For notification and alert usage.
Certificate. : CE(EMC Directive 2004/108/EC), FCC(Part 15,Subpart B,Class A)
Accessories : HMI-LINKER
13-826-C
NFT28U

【Installation】
A single gang electrical box (Box) soul be reserved when mounted on the wall, in order to get enough space for the device cable,
can be mounted horizontally or vertically.
With hot-swappable design, PLUGI-IN terminals for easy adjustment test.
Recommended AWG22 four core shielded cable, and EMT pipe configuration in order to achieve better communication results.
Use computer software to perform BACsoft. Use USB2.0 and Mini USB conversion cable to link NFT28U with Micro USB port
(Figure 3) to set the data, update firmware and download the graphic control interface data
Installations needed to avoid dust, condensation and other environmental factors, damage to the product.
Connect in accord to
diagram
22AWG
Twisted pair
shield cable
MODBUS
Mini
USB
12VDC
M+ M- V+ V-
BL Y R G
Fig-1 Installation diagram Fig-2 Dismount diagram Fig-3 Connection
【Wiring Diagram】
MS/TP BUS, up to 32 DDCs MS/TP BUS, up to 32 DDCs
FCnet, up to 32 DTs or DFCs
FCnet, up to 32 DTs or DFCs
MS/TP BUS, up to 32 PF-PMs or DDCs
FCnet, up to 32 DFCs+DFRs, limit a PF-MR11
【Dimensions】Unit：mm
Please refer to http://www.airtekgroup.com for the most resent update information.