Delta Controls DNS-24, Application Manual

Page: 30 / 43

DNS-24, DNT-T103 & DNT-T221 Application Guide
Page 30 of 43 Document Edition 4.2
OUTPUT FUNCTIONS & TYPES
Regardless of model, any triac outputs are capable of switching up to 24 VAC at a maximum of 0.5 A
each, and may be configured for any of a number of output functions and types. Only the DNT-T221
supports two 0-10v outputs, up to a maximum of 20 mA each. Not all applications support all the
options listed.
FUNCTIONS
Function Description LCD Code
MUX
The associated output will be MUXed and not controlled by the
local algorithm, or not used at all.
 0
Heating The associated output is connected to 1st stage heating.  10
The associated output is connected to 2nd stage heating.

20
The associated output is connected to 3rd stage heating.  30
Cooling The associated output is connected to 1st stage cooling.

40
The associated output is connected to 2nd stage cooling.  50
Fan The associated output is connected to an intermittent fan.  70
The associated output is connected to a constant fan.  80
The associated output is connected to a manually controlled fan.  90 *
Compressor The associated output is connected to a HPU compressor.  100
Reversing Valve The associated output is connected to a HPU reversing valve.  110
Humidifier The associated output is connected to a humidifier.

120
* Only available in HPU and FCU applications.
TYPES
Output Type Description Action LCD Code
Binary Provides O
N
/O
FF
control with a triac output. Direct

0.0
Reverse

0.1
PWM Provides modulating control using a Pulsed Width
Modulation signal with a triac output. Direct

0.2
Reverse  0.3
Analog
Provides modulating control using a 0-10v analog
signal (DNT-T221).
Direct  0.4
Reverse  0.5
Flow Damper
(Analog) Provides modulating control using a 0-10v analog
flow damper (DNT-T221 & VAV). N/A

0.6
Time
Proportioned Provides modulating control using a Time
Proportioned signal with a triac output. Direct  0.8
Reverse  0.9
Tri-State Provides modulating control using triac outputs 1 & 2
for a tri-state actuator (DNT-T103). N/A  1.0
Flow Damper
(Tri-State) Provides modulating control, using triac outputs 1 & 2
for a tri-state flow damper (DNT-T103 & VAV). N/A

1.1