Submittal Sheet

3. PROGRAMMING OUTPUT (LOOPS AND ADDITIONAL RELAYS) WITH RESET T775L SERIES 2000 CTLR
29 62-0257–05
Fig. 71. Program Menus for Relays.
3.5. Program Menus for the Additional Relays
with Reset
Press the MENU button, select PROGRAM, then select
an available relay to view the parameters. Fig. 71 shows
the example for relay 9. If Relays are not set for Reset in
Setup mode, simply enter the setpoint desired.
Up to two additional two relays can be available for
independent on-off control. Examples of Loop and Relay
configurations are:
• Number of relays = 8. Loop 1 uses relays 1-3,
and Loop 2 uses relays 3-6. The remaining two
relays (7 and 8) are available for use.
• Number of relays = 11. Loop 1 uses relays 1-5,
and Loop 2 uses relays 6-10. The remaining
relay (11) is available for use.
• Number of relays = 12. Loop 1 uses relays 1-4,
and Loop 2 uses relays 5-8. Relays 9 and 10
are available for use, but in this case, relays 11
and 12 are not usable.
Fig. 72. Program - Setpoint Offset.
3.5.1. SETPOINT OFFSET
This value is the number of degrees plus (+) or minus (-)
that you want the additional relay to be offset from the
setpoint curve created for Loop 1. For example, If you
want the temperature to be 10°F less than the Loop 1
setpoint, enter -10°F.
1. From the menu, use the S and T buttons to high-
light OFFSET.
2. Press the X button to display the value.
3. Use the S and T buttons to increase/decrease the
desired setpoint temperature.
OFFSET Default: 0°F
OFFSET Range: -150°F to 150°F (-101°C to 66°C)
4. Press the X button to accept the stepping and dis-
play the next option.
Fig. 73. Program - Differential.
3.5.2. DIFFERENTIAL
Differential is used for the additional Relay outputs.
1. From the menu, use the S and T buttons to high-
light DIFFRNTL.
2. Press the X button to display the differential value.
3. Use the S and T buttons to increase/decrease the
desired value.
Default: 20°F (-6.6°C)
Range: 1°F to 150°F (1°C to 66°C)
4. Press the X button to accept the value and display
the next option.
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.
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.
OFFSETDIFFRNTL
DIFFERENTIAL
SENSOR
HEAT/COOL
SETBACK
EXIT
PROGRAM
RELAY 9
MENU
PROGRAM
RELAY 9
M24414
PROGRAM
RELAY 9
OFFSET
MENU
PROGRAM
RELAY 9
OFFSET
-10
F
o
ENTER
OFFSET
FOR
RELAY 9
M24415
PROGRAM
RELAY 9
DIFFRNTL
MENU
PROGRAM
RELAY 9
DIFFRNTL
20
F
o
ENTER
DIFFERENTIAL
FOR
RELAY 9
M24416