DNT-T221-FCU Application Guide
Page 6 of 30
Menu Item
Description
3
- Setpoint is always displayed (adjustable)
4
- No Setpoint until an arrow button is pressed (not adjustable)
5
- Setpoint is always displayed (not adjustable)
6
- Temperature from AI1
7
- Value from AI2
8
- Humidity from AI3
9
- Value from AV5
D
House & Day/Night Mode Icons: 1 to 9
House Outline
On/Off Text
Man
Sun/Moon
1
No
No
No
No
2
No
Flash
No
No
3
No
Yes
No
No
4
No
No
No
Yes
5
Yes
No
No
No
6
Yes
Yes
No
No
7
Yes
Yes
Yes
No
8
Yes
No
Yes
No
9
Yes
No
No
Yes
Note
: When connected to MS/TP, the Display Code may be set to any valid
value – making it unnecessary to write GCL+ programs for display and
button handling. Whenever an application is selected, a matching default
Display Code is also set automatically (typically 1237), but this can be set to
something else if so desired.
The Service Tool Mode access setting (AV32) has the following
configuration values:
0
Disables all access to Service Tool Mode
1
Provides limited access for VAV, or full access for other applications
2 Full access with advanced Air Balancer functions for VAV. Not for
FCU applications
3
Screen inhibit, locks out all buttons
Interlock feature allows the ability for a signal from an external source to
directly control Alg Mode (AV13) via IP2. This feature is only available in
non-VAV algorithms. The Interlock is enabled by setting the units of AI2 to
“Day” or by selecting
for the
option in the configuration menu.
I
2
Alg Mode
Interlock
Closed
0
Unoccupied
Open
1
Occupied
This feature works on edge changes and not constantly held. This means if a
signal changes Alg Mode to 0, a new value can be overwritten from key
presses or direct writes to Alg Mode (AV13).
Enables Auto Changeover water sensor function. Setting (Yes or No), A
sensor must be installed and connected to Input 3 for the function to
operate.
Only available when OP2 is selected as 2-pipe.
Number of fan speeds, Enter 2 or 3 for desired fan mode. This menu option
is
only available
when OP1 has been selected as Multi-Speed Constant or
Intermittent.
