Submittal Sheet

T775L SERIES 2000 CTLR 3. PROGRAMMING OUTPUT (LOOPS AND ADDITIONAL RELAYS) WITH RESET
62-0257–05 28
Fig. 68. Program - Setback (Offset).
3.3.7. SETBACK OFFSET (if configured)
The Setback temperature option displays only if
Scheduling is enabled (see Fig. 31 on page 15) or the DI
Option is set to Setback (see Fig. 33 on page 16).
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 less
than the setpoint during setback mode, enter -10°F. 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 S and T buttons to high-
light SETBACK.
2. Use the S and T buttons to increase/decrease the
desired setpoint temperature.
Default: 0°F
Range: -150°F to 150°F (-101°C to 66°C)
3. Press the X button to accept the value and display
the menu.
This completes the programming of Loop 1. To program
Loop 2, continue with “3.4. Loop 2”.
Fig. 69. Program - Setpoint Offset (Loop 2 only).
Fig. 70. Reset Curve with Offset for Loop 2.
3.4. Loop 2
For the second loop (if it is configured for Reset), the
Offset parameter displays on the Program menu as
shown in Fig. 69.
3.4.1. SETPOINT OFFSET (Loop 2 only)
This value is the number of degrees plus (+) or minus (-)
that you want the temperature to be offset from the Loop 1
setpoint. See Fig. 70. For example, If you want the Loop 2
setpoint to be 10°F less than the Loop 1 setpoint, enter
-10°F.
1. From the menu, use the S and T buttons to
highlight OFFSET.
2. Press the X button to display the value.
3. Use the S and T buttons to increase/decrease the
desired 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 value and display
the next option.
3.4.2. Loop 2 Programming
To complete the programming of Loop 2, perform the
procedures in “3.3.5. THROTTLING RANGE” through
“3.3.7. SETBACK OFFSET (if configured)” beginning on
page 27.
3.4.3. Exit Loop Programming with Reset
When you finish programming the loop(s), press the
HOME button to leave programming mode and return to
the home screen.
If you have additional relays configured, continue with
“3.5. Program Menus for the Additional Relays with
Reset” on page 29.
If there are no additional relays, continue with “3.7. Exit
Programming with Reset” on page 30.
PROGRAM
LOOP 1
SETBACK
MENU
PROGRAM
LOOP 1
SETBACK
-10
F
o
ENTER
SETBACK
OFFSET
FOR
LOOP 1
M24413
PROGRAM
LOOP 2
MENU
PROGRAM
LOOP 2
OFFSET
-10
F
o
ENTER
SETPOINT
OFFSET
FOR
LOOP 2
M24410
MENU
PROGRAM
LOOP 2
OFFSET
THROT RNG
HEAT/COOL
SETBACK
EXIT
SENSOR B
SP MAX A1
(BOILER MAX)
SP MIN A2
(BOILER MIN)
200
140
10
LOOP 2
SETPOINT
OFFSET
-10°F
190
20
30 40 50 60
70
°F80
150
160
170
210
220
180
°F
RESET B1
(OUTSD MIN)
RESET B2
(OUTSD MAX)
S
E
N
S
O
R
A
M24403
LOOP 1
SETPOINT