Honeywell T775abm Manual

T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
2162-0254—13
Fig. 46. Setup - Sensors - Sensor B - Throttling Range.
2.2.4.2. THROTTLING RANGE (Sensor B 
only)
The throttling range for the modulating high or low limit 
positions the setpoint at the end of the throttling range. 
For example, with a high limit at Sensor B of 200°F and a 
throttling range of 10°F, the modulating output controlling 
Sensor A begins to throttle back at 190°F 
(88°C), and fully closes at 200°F (93°C). Conversely, the...

T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—1322
Fig. 49. Setup - Outputs - Mod Out - Type.
2.3.1.1. TYPE (of output signal)
1.From the Mod menu, use the  and  buttons 
to highlight TYPE.
2.Press the 
 button to display the Type selections.
3.Use the  and  buttons to highlight the desired 
output type.
Default: 4-20 mA
4.Press the 
 button to accept the selected type and 
return to the Mod menu.
Fig. 50. Setup - Outputs - Mod Out - Minimum Output 
Percentage .
2.3.1.2. MIN OUT...

T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
2362-0254—13
Fig. 52. Setup - Outputs - Mod Out - Derivative.
2.3.1.4. DERIVATIVE
The Derivative default value is factory set to zero (no 
derivative control). It is strongly recommended that the 
derivative remain at zero (0) unless you have a very good 
reason to adjust it. Derivative control is not needed in the 
vast majority of HVAC applications.
1.From the Mod menu, use the
  and  buttons 
to highlight DERIVATIV.
2.Press the 
 button to...

T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—1324
Fig. 55. Setup - Outputs - Mod Out - Exit.
2.3.1.7. EXIT
Press thebutton (or highlight EXIT and press the  button) to exit the Mod menu and return to the Outputs 
menu.
If you have a second modulating output to configure, go to 
“2.3.1. Setting up the Modulating Outputs” on page 21.
If you are finished setting up the modulating outputs, 
continue with “2.3.2. NBR OF RELAYS”.
Fig. 56. Setup - Outputs - Number of Relays.
2.3.2. NBR OF...

T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
2562-0254—13
Fig. 58. Setup - Outputs - Options - Schedule.
2.3.3.1. USE SCHED
1.Press the  button to display the schedule 
selections.
2.Use the 
 and  buttons to highlight YES or NO.
Default: NO
3.Press the 
 button to accept the value and display 
the MIN OFF option.
Selecting NO disables scheduling for all outputs.
Selecting YES enables scheduling for all outputs. When 
YES is selected, all individual outputs default to follow the...

T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—1326
Fig. 60. Setup - Outputs - Options - DI Options.
2.3.3.3. DI OPTIONS (digital input options)
The DI Option 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...

T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
2762-0254—13
Fig. 63. Setup - Outputs - Options - Exit.
2.3.3.6. Exit Options Setup
Press the button (or highlight EXIT and press the  button) to exit and return to the Outputs menu.
Continue with “2.3.4. Setting up the Relays”
Fig. 64. Setup - Outputs - Relay Menu.
2.3.4. Setting up the Relays
1.From the Outputs menu, use the  and  but-
tons to highlight the desired relay (1-4 depending on 
model).
2.Press the 
 button to display the selected...

T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—1328
Fig. 66. Setup - Outputs - Floating Relay - Menu.
2.3.4.1.1. Floating Relay Menu
The Floating option is only available on the T775B2016, 
T775B2024, T775B2032, and T775B2040 models. 
When Relay 1 or Relay 3 is setup as floating, relays are 
paired and the Float 1 or Float 2 menu displays with the 
selections shown in Fig. 66.
Fig. 67. Setup - Outputs - Floating Relay - Actuator.
2.3.4.1.1.1. ACTUATOR (floating relay only)
The Actuator...

T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
2962-0254—13
Fig. 69. Setup - Outputs - Floating Relay - Derivative.
2.3.4.1.1.3. DERIVATIVE (modulating/floating 
relay only)
The Derivative option displays only on the T775B2016, 
T775B2024, T775B2032, and T775B2040 models when 
the Type option = Floating.
1.From the menu, use the
  and  buttons to 
highlight DERIVATIV.
2.Press the 
 button to display the actuator value.
3.Use the  and  buttons to increase/decrease 
the desired number of...

T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
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Fig. 72. Setup - Outputs - Relay - Exit.
2.4. EXIT Setup Mode
Press the button to exit the selected relay set up and 
return to the Outputs menu.
To setup the next relay output go to “2.3.4. Setting up the 
Relays” on page 27.
If you are finished setting up the relay outputs, press the 
HOME button to exit Setup mode and return to the home 
screen display.
This completes the Setup procedure.
3. SCHEDULING
Scheduling provides the...