Honeywell T775L Series - Digital Input (DI) Options Configuration

T775L SERIES 2000 ELECTRONIC STAND-ALONE STAGING CONTROLLER
62-0257—11 16
Fig. 32. Setup - Outputs - Min On/Off Options.
1.3.3.2. MIN OFF or MIN ON
This is the minimum number of seconds of “off time” or
“on time” for all relays that are not configured in a loop.
1. Press the  button to display the Min Off /On value.
2. Use the  and  buttons to increase/decrease the
desired number of seconds from 0 to 990 seconds
in 10 second increments.
Default: 0 (zero)
Range: 0 to 990 seconds
3. Press the  button to accept the seconds and
display the DI OPTS menu.
NOTES:
1. The minimum OFF or ON time applies to all
relays that are not configured in a loop.
2. When minimum OFF or ON time is active, relays
waiting to be energized display a flashing
square underneath the relay number on the
home screen.
3. If the minimum off time is not equal to zero (0),
the minimum off time activates at power-up.
4. To manually override, press the  button.
Fig. 33. Setup - Outputs - Options - DI Options.
1.3.3.3. DI OPTIONS (digital input options)
The DI Option that you select applies to all outputs. This
option overrides any Setpoint/Setback values entered in
the Schedule.
1. Press the  button to display the DI Option
selections.
2. Use the  and  buttons to highlight DISABLE,
SETBACK, or IGNORE.
Default: DISABLE
3. Press the  button to accept the value and display
the SHOW RT menu.
When the digital input (DI) closes, all outputs follow the DI
option value (Disable, Setpoint, Setback, Enable, DHW,
or Ignore):
• DISABLE disables the outputs; relays return to de-
energized state.
• SETPOINT forces the control to the setpoint
temperature.
• SETBACK enables a setback temperature value to be
programmed for each output and forces the control to
the setback temperature.
— To program the Setback temperature without
Reset, see Fig. 58 on page 24.
— To program the Setback temperature with Reset,
see Fig. 69 on page 28.
• ENABLE energizes all relays to 100%. Use this option
carefully.
• DHW: if a reset curve is being used, then the controlled
setpoint becomes the maximum setpoint (either SP
MAX A1 or BOILR MAX). If a reset curve is not being
used, then DI closure for DHW has no effect.
• IGNORE causes the digital input to have no effect on
the Relay outputs.
SETUP
OUTPUTS
OPTIONS
ENTER
MINIMUM
OFF TIME
FOR RELAYS
SETUP
OUTPUTS
OPTIONS
MIN OFF
0
SEC
M24522A
OR
MIN ON
ENTER
MINIMUM
ON TIME
FOR RELAYS
SETUP
OUTPUTS
OPTIONS
MIN ON
0
SEC
MIN OFF
SETUP
OUTPUTS
OPTIONS
DI OPTS
SETUP
OUTPUTS
OPTIONS
DI OPTS
SELECT DI
OPTION
FOR
RELAYS
DISABLE
SETPOINT
SETBACK
ENABLE
DHW
IGNORE
M24442A