T775R SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER
15 62-0249—13
Fig. 32. Program - Differential or Throttling Range.
1.2.6. DIFFERENTIAL or THROTTLING
RANGE
Differential displays for Relay outputs and Throttling
Range is used for Modulating outputs.
1. From the menu, use the and buttons to high-
light DIFFERNTL or THROT RNG.
2. Press the button to display the throttling range
value.
3. Use the and buttons to increase/decrease the
desired value.
Default: 20° F (-07° C)
Range: 1° to 300° F (1° to 149° C)
4. Press the button to accept the value and display
the next option.
NOTES:
a. In heating mode, the Differential is below the
setpoint. The relay de-energizes when the
temperature rises to the setpoint. As the temperature
drops to the setpoint minus the Differential, the relay
energizes.
b. In cooling mode, the Differential is above the
setpoint. The relay de-energizes when the
temperature falls to the setpoint. As the temperature
rises to the setpoint plus the Differential, the relay
energizes.
c. The Throttling Range brackets the setpoint setting,
e.g., if the setpoint is 72° F (22° C) and the
throttling range is 10° F (-12° C), then the effective
throttling temperature range is 67° to 77° F (17° to
25° C). This applies to both modulating outputs
and floating outputs.
Fig. 33. Program - Heat/Cool Selection.
1.2.7. HEAT/COOL
1. From the menu, use the and buttons to high-
light HEAT/COOL.
Default: HEAT
2. Press the button to display the heat and cool
selections.
3. Use the and buttons to select Heat or Cool.
4. Press the button to accept the highlighted selec-
tion and display the Mod 1 menu.
5. Use the and buttons to highlight EXIT.
6. Press the button to accept the value and display
the next option.
Fig. 34. Program - Setback.
1.2.8. SETBACK OFFSET (if configured)
The Setback temperature option displays only if
scheduling is enabled (refer to Fig. 65 on page 26) or the
DI Option is set to Setback (refer to Fig. 67 on page 27).
This value is the number of degrees plus (+) or minus (-)
that you want the temperature to be offset from the
setpoint.
For example, If you want the temperature to be 10° F
(-12° C) less than the setpoint during setback mode, enter
-10° F (-12° C). In normal operations for heating, the
offset will be negative. For cooling, the offset will be a
positive value.
1. From the menu, use the and buttons to high-
light SETBACK.
2. Use the and buttons to increase/decrease the
desired setpoint temperature.
Default: 0° F (-18° C)
Range: -150° to 150° F (-101° to 66° C)
3. Press the button to accept the value and display
the menu.
This completes the programming of the first Reset output.
To program the subsequent outputs (e.g. MOD 2, Relay 2, Relay 3, etc.), continue with “1.2.9. Subsequent Outputs” on
page 16.
ENTER
DIF-
ERENTIAL
FOR RELAY 1
PROGRAM
RELAY 1
DIFFRNTL
MENU
PROGRAM
RELAY 1
DIFFRNTL
20
F
o
M24312
PROGRAM
RELAY 1
HEAT/COOL
MENU
PROGRAM
RELAY 1
HEAT/COOL
SELECT
HEAT/COOL
FOR
RELAY 1
HEAT
COOL
M24313
PROGRAM
RELAY 1
SETBACK
MENU
PROGRAM
RELAY 1
SETBACK
-10
F
o
ENTER
SETBACK
OFFSET
FOR RELAY 1
M24314
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