Delta Controls DNS-24 User Manual

DNS-24, DNT-T103 & DNT-T221 Application Guide
Page 26 of 43 Document Edition 4.2
DNT-T221 I/O (Outputs 1 & 2 are Analog, and Output 3 is a Triac)
Input AI1
Input AI2
Input AI3
Remote AV5
Output 1
Output 2
Output 3
Room Temp.
N/A
Optional OAT
Compressor
(0/10v)
Reversing
Valve (0/10v)
Heating 2
Room Temp.
N/A
Optional OAT
Compressor
(0/10v)
Reversing
Valve (0/10v)
Cooling 2
Room Temp.
N/A
Optional OAT
Compressor
(0/10v)
Reversing
Valve (0/10v)
Fan
Room Temp.
N/A
Optional OAT
Compressor
(0/10v)
Reversing
Valve (0/10v)
None
(MUX)
Setup Parameters
Setup Variable
Function
Notes
AV24
Binary Delay
Transition Timer for Compressor
AV25
N/A
AV26
Binary Delay
Transition Timer for Rev. Valve
AV27
N/A
AV28
PWM minimum value or Binary On Delay
Depends on OP3 configuration
AV29
PWM maximum value or Time Proportioned
Heating Controller Limit
Depends on OP3 configuration
Sequence of Operation
Switch to HEATING
 Turn Rev. Valve ON
 Wait Delay Time
Switch to COOLING
 Turn Rev. Valve OFF
 Wait Delay Time
Rev. Valve
is OFF
Rev. Valve
is ON
Heating > 90% Cooling > 90%
Turn Compressor ON
Heating &
Cooling = 0
HEATING COOLING
Y Y
N N
Turn Compressor OFF
DEADBAND
YYY
N N N
START
Turn Fan ONTurn Fan OFF

Delta Controls DNS-24 Specifications

General

Brand	Delta Controls
Model	DNS-24
Category	Accessories
Language	English