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T775A/B/M SERIES 2000 CONTROLLER 2. SETUP (ADVANCED OPTIONS)
62-0254–03 20
Fig. 42. Setup - Sensors - Sensor B - Limit.
2.2.4. LIMIT (Sensor B only)
For the T775M2030 and T775M2048 models only, the
LIMIT item displays on the Sensor B menu.
NOTE: The LIMIT option acts only on Modulating
Output 1.
1. From the Sensors menu, use the T button to high-
light SENSOR B.
2. Press the X button to display the Sensor B menu.
3. Use the S and T buttons to select the LIMIT item.
4. Use the X button to display the Limit selections.
5. Use the S and T buttons to select the desired limit,
(Disable, Hi Limit, or Low Limit).
Default: Disable
6. Press the X button to accept the value and return to
the Sensor B menu.
When you select Hi Limit or Low Limit, the Sensor B menu
changes and adds the Hi/Low Limit and Throttling Range
items.
If you are setting a Hi or Low Limit, continue with “2.2.4.1.
HI LIMIT or LOW LIMIT (Sensor B only)”.
If you selected Disable for the Limit value, continue with
“2.3. Setting up the Outputs” on page 21.
Fig. 43. Setup - Sensors - Sensor B - Hi/Low Limit
(showing Hi Limit).
2.2.4.1. HI LIMIT or LOW LIMIT (Sensor B only)
Fig. 43 shows the Hi Limit (Heat mode), but the process is
the same for setting the Low Limit (Cool mode). For
proper operation, the high limit should be used only in the
Heat mode, and the low limit only in the Cool mode.
Sensor B can be assigned a high/low limit, so that as you
are controlling temperature at Sensor A, the control
adjusts its modulating output to prevent exceeding the
user-entered limit for Sensor B.
1. From the Sensor B menu, use the T button to high-
light HI LIMIT or LOW LIMIT.
2. Press the X button display the LIMIT value.
3. Use the S and T buttons to increase/decrease the
desired Limit value.
4. Press the X button to accept the value and return to
the Limit menu.
SETUP
SENSORS
SENSOR B
LIMIT
SETUP
SENSORS
SENSOR B
LIMIT
SELECT
HI/LOW
LIMIT FOR
SENSOR B
DISABLE
HI LIMIT
LOW LIMIT
M24508
SETUP
SENSORS
SENSOR B
UNITS
CALIBRATE
LABEL
LIMIT
HI LIMIT
THROT RNG
EXIT
SETUP
SENSORS
SENSOR B
ENTER
VALUE FOR
SENSOR B
HI LIMIT
SETUP
SENSORS
SENSOR B
HI LIM
90
F
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M24509