Install Instructions

ManualsBrandsHoneywell ManualsHVAC SuppliesElectronic Temp Controller w/ 2 Temp Inputs, 4 SPDT Relays, 2 Sensors

Table Of Contents

T775R SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER

11 62-0249—05

IMPORTANT

After four minutes of inactivity (no buttons

pressed), the LCD display reverts to the home

screen display.

Accessing the Menus

Menus are used for programming, scheduling, viewing the

summary settings, and setup of advanced options.

Program, Schedule, and Summary Menus

To access these menus from the home screen, press the

MENU button (See Fig. 22).

Fig. 22. Menus.

Depending on whether scheduling is enabled or not, the

LCD displays one of two menus as shown in Fig. 22.

Scheduling is enabled from the Setup menu’s Output

settings (Refer to “3.3.5.1. USE SCHED” on page 26).

Setup Menu

To access the Setup menu for advanced options, press

and hold the MENU button for five seconds (See Fig. 23).

Fig. 23. Setup Menu.

Using the Menus

When you are working with the menus, use the:

• Left arrow button (W) to scroll backward through the

menus

• Right arrow button (X) to select the highlighted menu

item and display its content

• Up and Down arrow buttons (S and T) to scroll up

and down through a list of items or to increase or

decrease the value of a displayed parameter

NOTES:

1. If you press the HOME button or there is no

keypad activity for four minutes, you exit

Program mode and return to the home

screen.

2. If you press the MENU button, you exit and

return to the menu.

PROGRAMMING

The controller must be programmed before being placed

into service.

IMPORTANT

During programming, the controller is live at all

times. For example, the contacts may open and

close when adjusting the setpoint.

The programming process uses a hierarchical menu

structure that is easy to use. You press the W and X

arrow buttons to move forward and backward through the

menus.

NOTES:

1. The T775P controller interface is intuitive.

You may want to use these procedures

simply as a reference to locate the particular

option or parameter of interest.

2. The menus can display only those relays that

are defined in Setup (Refer to “3.3.4. NBR OF

RELAYS” on page 25). For example, if you

configure only two relays, then only two

relays display on the appropriate menus.

3. If you press the HOME button or there is no

keypad activity for four minutes, you exit

Program mode and return to the home

screen.

4. If you press the MENU button, you exit

Program mode and return to the menu.

Setpoint and Differential

The following describes the relationship between setpoint

and differential for heating and cooling. These settings are

programmed for each output relay.

Heating Mode Setpoint and Differential

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.

Cooling Mode Setpoint and Differential

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.

Setpoint High Limit

You can set an irreversible setpoint high limit maximum

value for any single displayed setpoint value.

PROGRAM

EXIT

home

MENU DISPLAY WHEN

SCHEDULING IS NOT SET

MENU DISPLAY WHEN

SCHEDULING IS SET

MOD1 40%

MOD2 60%

DI ON

HOME

RELAYS 1 2 3 4

SENSORS

SENSOR A

SENSOR B

PROGRAM

SCHEDULE

SUMMARY

EXIT

M24300

home

SETUP

MOD1 40%

MOD2 60%

DI ON

HOME

RELAYS 1 2 3 4

FIVE

SECONDS

SENSORS

SENSOR A

SENSOR B

SENSORS

OUTPUTS

EXIT

M24301