Delta Controls DNT-T221 User Manual

Delta Controls
Document Edition 4.1 Page 33 of 41
If the application is something other than VAV or VVT, then both analog outputs may be configured
for either heating or cooling. Analog outputs for heating or cooling may be either direct or reverse
acting.
For the HPU application, 2-position control is provided for the compressor and reversing valve, 0 or 10v
(typically requiring an appropriate interface relay), rather than modulating the two analog outputs.
OWS Functions
1. DEVICE CONFIGURATION
The BACstat can be configured and commissioned using the keypad buttons, via the Configuration
Menu, without additional software. It can also be configured using the ORCAview OWS if the BACstat
is connected to an MS/TP network.
However, to do this requires a minimum configuration for each device to ensure they are all configured
the same and are communicating properly on the designated network. These essential configuration
items include:
• N
ETWORK CONNECTION: LINKnet OFF (MS/TP).
• DNA: O
N or OFF
• D
EVICE ADDRESS: 1-99 for MS/TP
• BAUD RATE: Set the speed to match the network it will be connected to (76,800
bps is the default)
Configuration Settings
When the ORCAview OWS is able to access the BACstat and its objects, you may then configure the
following BACstat settings at the OWS (which are usually configured once and rarely ever changed
thereafter). However, these must be configured in the sequence provided (which is the same as the
Configuration Menu). Any change to these settings from an OWS requires the BACstat to be reset
(locally or via user command).
• A
PPLICATION: AV12 (refer to page 12)
• O
UTPUT CONFIGURATION 1: AV21 (refer to page 28, and associated Application
information)
• O
UTPUT CONFIGURATION 2: AV22 (refer to page 28, and associated Application
information)
• O
UTPUT CONFIGURATION 3: AV23 (refer to page 28, and associated Application
information)
• A
DDITIONAL PARAMETERS: AV24 to AV29 (as per associated Application information)
Control Settings
These are other settings you may want to set from the OWS, which may also be commanded on the fly
by a user or from a GCL+ program:
• A
LGORITHM MODE: AV13 (which defaults to Night)
• D
AY SETPOINT: AV6
• D
AY MINIMUM: AV7
• D
AY MAXIMUM: AV8
• D
AY DIFFERENTIAL: AV9
• N
IGHT HEAT SETPOINT: AV10 (which can only be changed remotely, not via the keypad)
• N
IGHT COOL SETPOINT: AV11 (which can only be changed remotely, not via the
keypad)

Delta Controls DNT-T221 Specifications

General

Brand	Delta Controls
Model	DNT-T221
Category	Thermostat
Language	English