Honeywell T775B Series - Page 21

2. SETUP (ADVANCED OPTIONS) T775A/B/M SERIES 2000 CONTROLLER
21 62-0254–03
Fig. 44. Setup - Sensors - Sensor B - Throttling
Range.
2.2.4.2. THROTTLING RANGE (Sensor B only)
The throttling range for the modulating high or low limit
positions the setpoint at the end of the throttling range.
For example, with a high (Heat) limit at Sensor B of 200°F
and a throttling range of 10°F, the modulating output
controlling Sensor A begins to throttle back at 190°F, and
fully closes at 200°F. Conversely, the throttling range for
the low limit begins above the Cooling setpoint in the
same manner.
1. From the Limit menu, use the T button to highlight
THROT RNG.
2. Use the S and T buttons to increase/decrease the
desired value for the Throttling Range.
Default = 0
3. Press the X button to accept the value and return to
the Limit menu.
4. Press the W button to exit the Limit menu.
5. Press the W button to exit the Sensors menu and
return to the Setup menu.
Fig. 45. Setup - Outputs Menu.
2.3. Setting up the Outputs
1. From the Setup menu, use the Sand T buttons to
highlight OUTPUTS.
2. Press the X button to display the Outputs menu.
NOTE: The menus (e.g. the Outputs menu shown here)
can display only those relays that are defined in
Setup (see page 24). For example, if you config-
ure only two relays, then only two relays display
on the appropriate menus.
The following procedures set up each modulating output
and relay output.
Fig. 46. Setup - Outputs - Modulating Output Menu.
2.3.1. Setting up the Modulating Outputs
1. From the Output menu, use the S and T buttons to
highlight the desired modulating output (MOD 1 or
MOD 2).
2. Press the X button to display the selected MOD
menu.
NOTE: Modulating outputs are not available on the
T775A and T775B controller models. If you are
setting up one of these controllers, skip to “2.3.2.
NBR OF RELAYS” on page 24.
Use the remaining procedures, beginning with “2.3.1.1.
TYPE (of output signal)”, to set up each modulating
output. If you have two modulating outputs, repeat these
procedures for each modulating output.
SETUP
SENSORS
SENSOR B
UNITS
CALIBRATE
LABEL
LIMIT
HI LIMIT
THROT RNG
EXIT
SETUP
SENSORS
SENSOR B
ENTER
VALUE FOR
SENSOR B
THROTLING
RANGE
SETUP
SENSORS
SENSOR B
THROT RNG
10
F
o
M24510
SETUP
OUTPUTS
SETUP
OUTPUTS
MOD 1
MOD 2
# RELAYS
OPTIONS
RELAY 1
RELAY 2
RELAY 3
RELAY 4
EXIT
M24511
SETUP
OUTPUTS
MOD 1
SETUP
OUTPUTS
MOD 1
TYPE
MIN OUT %
INTEGRAL
DERIVATIV
SCHEDULE
RESET
EXIT
M24512