Install Instructions

ManualsBrandsHoneywell ManualsHVAC SuppliesElectronic Temp Controller w/ 2 Temp Inputs, 2 SPDT Relays, 2 Analog Outputs, 2 Sensors

Table Of Contents

T775R SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER

17 62-0249—05

Fig. 38. Program Menu - No Reset.

2.1.1. Program Menu for Outputs with No Reset

Press the MENU button, select PROGRAM, then highlight

the MOD or Relay desired and press the X button to view

the parameters. Fig. 38 shows RELAY 1.

NOTE: For MOD 1 and 2, THROT RNG replaces

DIFFRNTL.

NOTE: The Setback parameter displays only if

scheduling is enabled (Refer to Fig. 64 on page

26) or the DI Option is set to Setback. (Refer to

Fig. 66 on page 27).

Continue with “2.1.2. SETPOINT”.

Fig. 39. Program - Setpoint.

2.1.2. SETPOINT

1. From the menu, use the S and T buttons to

highlight SETPOINT.

2. Press the X button to display the setpoint value.

3. Use the S and T buttons to increase/decrease the

desired setpoint temperature.

Default: 70° F (21° C)

Range: -40° to 248° F (-40° to 120° C)

4. Press the X button to accept the setpoint

temperature and display the next option.

Fig. 40. Program - Differential or Throttling Range.

2.1.3. DIFFERENTIAL or THROTTLING RANGE

Differential displays for the Relay outputs and Throttling

Range is used for Modulating outputs.

1. From the menu, use the S and T buttons to

highlight DIFFRNTL or THROT RNG.

2. Press the X button to display the throttling range

value.

3. Use the S and T buttons to increase/decrease the

desired value.

Default: 20° F (-6.6° C)

Range: 1° to 150° F (1° to 66° C)

4. Press the X 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 (19° to

25° C). This applies to both modulating outputs

and floating outputs.

PROGRAM

RELAY 1

PROGRAM

RELAY 1

SETPOINT

DIFFRNTL

SENSOR

HEAT/COOL

SETBACK

EXIT

M24315

ENTER

SETPOINT

FOR

RELAY 1

PROGRAM

RELAY 1

SETPOINT

PROGRAM

RELAY 1

SETPOINT

M24316

ENTER

DIFFERENTIAL

FOR

RELAY 1

PROGRAM

RELAY 1

DIFFRNTL

PROGRAM

RELAY 1

DIFFRNTL

M24317