Table of Contents
Advertisement
INSTALLATION GUIDE
Product Description
The DNT-T221 is an intelligent room thermostat with a custom 3-
value, 96 segment, LCD display. The DNT-T221 has the ability to
communicate on Delta's proprietary LINKnet network or directly on an
BACnet MS/TP network.
It is capable of displaying a wide range of digital or analog values,
including setpoints, temperature, air flow, heating and cooling status,
fan speed, valve and damper position, and more.
When connected on a BACnet MS/TP network the DNT-T221
functions as an independent BACnet thermostat. When connected to a
Delta Controller on a LINKnet network it provides programmable
remote sensor and expanded I/O capabilities.
Contents
MODEL NUMBERS & ACCESSORIES............................................................................ 2
PACKAGE CONTENTS ...................................................................................................... 2
OTHER RELEVANT DOCUMENTS................................................................................. 2
PRODUCT SPECIFICATIONS .......................................................................................... 2
BOARD LAYOUT................................................................................................................. 4
JUMPERS .............................................................................................................................. 5
MOUNTING .......................................................................................................................... 5
WIRING DIAGRAM ............................................................................................................ 6
POWER.................................................................................................................................. 7
NETWORK CABLING & REQUIREMENTS .................................................................. 7
NETWORK TOPOLOGY.................................................................................................... 8
CAUTIONS & WARNINGS ................................................................................................ 9
COMPLIANCE DECLARATIONS .................................................................................... 9
Document Edition 1.6
Delta Network Thermostat: BACstat II
DNT-T221 (Rev 2.2)
Document Edition 1.6
Page 1 of 10
Advertisement
Table of Contents
Related Manuals for Delta Controls BACstat II
Summary of Contents for Delta Controls BACstat II
-
Page 1: Table Of Contents
INSTALLATION GUIDE Delta Network Thermostat: BACstat II DNT-T221 (Rev 2.2) Document Edition 1.6 Product Description The DNT-T221 is an intelligent room thermostat with a custom 3- value, 96 segment, LCD display. The DNT-T221 has the ability to communicate on Delta’s proprietary LINKnet network or directly on an BACnet MS/TP network. -
Page 2: Model Numbers & Accessories
Delta Network Thermostat: BACstat II DNT-T221 (Rev 2.2) Installation Guide Model Numbers Features DNT-T221 DNT-H121 Internal Thermistor Input Internal Humitity Input Additional I/O 2 IP, 3 OP 1 IP, 3 OP Backlighting Option B External Input Terminator Option X Button Icons... - Page 3 Delta Controls Communication Port LINKnet Connection • Communications Speed @ 76,800 bps • Up to 12 Devices per segment (depending on the controller), only two of which can be DNT or DFM devices BACnet MS/TP Connection • Communications Speed @ 9,600 or 19,200 or 38,400 or 76,800 bps (the default) •...
-
Page 4: Board Layout
Delta Network Thermostat: BACstat II DNT-T221 (Rev 2.2) Installation Guide Device Addressing LINKnet Connection • Set via Keypad Configuration Setup • Address Range: 1 to 12 BACnet MS/TP Connection • Set via Keypad Configuration Setup, or Software Setup • Keypad MAC Address Range: 1 to 99 per network segment •... -
Page 5: Jumpers
Internal For connecting the internal 10 KΩ Thermistor temperature sensor to IP1. Mounting The BACstat II backplate is designed for mounting directly on standard North American, European or Australian electrical boxes. Document Edition 1.6 Page 5 of 10... -
Page 6: Wiring Diagram
Delta Network Thermostat: BACstat II DNT-T221 (Rev 2.2) Installation Guide Wiring Diagram INPUT OUTPUTS INPUT 24~ GND 24 VAC Power Connection Input 3 Connection Network Connection Output 1 (AO) Connection Output 2 (AO) Connection Input 2 Connection Output 3 (BO) Connection Refer to Note 2 below. -
Page 7: Power
Power The DNT-T221 BACstat II requires a 24V AC Class 2 power supply rated for at least 17 VA. This includes output loading of the internally powered triac (0.5A max @ 24 VAC) and the two analog outputs (20mA max each). -
Page 8: Network Topology
Delta Network Thermostat: BACstat II DNT-T221 (Rev 2.2) Installation Guide Network Topology BACstats Configured as MS/TP Subnet Devices With V3.21 firmware or higher, one possible MS/TP network architecture has the MS/TP devices configured as Subnet devices, allowing BACstats to reside on the MS/TP network with other Subnet devices. Note that V3.21 requires a DCU, while V3.22 or higher may use any System Controller instead. -
Page 9: Cautions & Warnings
Delta Controls Cautions and Warnings The DNT-T221 BACstat II is an Electro-statically sensitive device. However, since the electronics are contained within the housing, and if sufficient care is taken in handling, proper WARNING ESD protection (ground strap) should be unnecessary. - Page 10 Delta Network Thermostat: BACstat II DNT-T221 (Rev 2.2) Installation Guide CE - DECLARATION OF CONFORMITY according to ISO/IEC Guide 22 and EN 45014 Manufacturer's Name: Delta Controls Manufacturer's Address: 17850 56 Avenue Surrey, British Columbia Canada V3S 1C7 declares that the product (s):...
Need help?
Do you have a question about the BACstat II and is the answer not in the manual?
Questions and answers