DNT-T221 (Rev 4.1) Installation Guide
Model Numbers
Features
DNT-T221
DNT-H121B
Internal Thermistor Input
Internal Humitity Input
Additional I/O
2IP, 2AO, 1 BO
1 IP, 2 AO, 1 BO
Backlighting Option
B
External Input Terminator
Option
X
Button Icons
INT INT
An appended button icon code must be included to specify the desired icons embossed on the buttons as
follows:
[
default
] Bottom 2 buttons are
▼
and
▲
(Setpoint Adjust), top 2 are
OFF
and
ON
INT
Bottom 2 buttons are
▼
and
▲
(Setpoint Adjust), top 2 are
O
and
I
–
International
You need not specify button icons if you want the default, but must specify INT if you want the international
button icons. (i.e., DNT-T221-INT).
Package Contents
•
Delta Network Thermostat: BACstat II Product,
DNT-T221 (Rev 4.1)
•
DNT-T221 (Rev 4.1)
Installation Guide
Other Relevant Documents
•
Delta Controls Wiring and Installation Guidelines
•
BACstat II Application Guide (for Configuration & Programming)
•
ORCAview Operator Guide
•
ORCAview Technical Reference Manual
•
BACstat II, DAC and DCU Release Notes
Product Specifications
Power Requirements
•
24V AC, 50/60 Hz (Class 2)
•
15 VA maximum (with internally powered triac at full load)
(3VA without triac loading)
Ambient Ratings
•
32º to 131º F (0º to 55º C)
•
10 to 90% RH (non-condensing)
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Document Edition 1.8
