Van Air Systems FP-4 Installation, Operation & Maintenance Instructions Manual page 29

2. SETUP (ADVANCED OPTIONS)
SETUP
SETUP
SENSORS SENSORS
SENSOR B SENSOR B
UNITS
CALIBRATE
LABEL
LIMIT
HI LIMIT
THROT RNG
EXIT
Fig. 44. Setup - Sensors - Sensor B - Throttling
Range.
SETUP
OUTPUTS
Fig. 45. Setup - Outputs Menu.
SETUP
OUTPUTS
MOD 1
Fig. 46. Setup - Outputs - Modulating Output Menu.
2.2.4.2. THROTTLING RANGE
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
SETUP
and a throttling range of 10°F, the modulating output
SENSORS
controlling Sensor A begins to throttle back at 190°F, and
SENSOR B
THROT RNG 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
10 o
F
2. Use the
ENTER
VALUE FOR
SENSOR B
3. Press the
THROTLING
RANGE
4. Press the
M24510
5. Press the
2.3. Setting up the Outputs
SETUP
OUTPUTS
1. From the Setup menu, use the
MOD 1
MOD 2
2. Press the
# RELAYS
OPTIONS
RELAY 1 NOTE: The menus (e.g. the Outputs menu shown here)
RELAY 2
RELAY 3
RELAY 4
EXIT
M24511
The following procedures set up each modulating output
and relay output.
2.3.1. Setting up the Modulating Outputs
SETUP
OUTPUTS
MOD 1
1. From the Output menu, use the
TYPE
MIN OUT %
INTEGRAL
2. Press the
DERIVATIV
SCHEDULE
RESET
EXIT
NOTE: Modulating outputs are not available on the
M24512
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.
21
T775A/B/M SERIES 2000 CONTROLLER
THROT RNG.
and buttons to increase/decrease the
desired value for the Throttling Range.
Default = 0
button to accept the value and return to
the Limit menu.
button to exit the Limit menu.
button to exit the Sensors menu and
return to the Setup menu.
highlight OUTPUTS.
button to display the Outputs menu.
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.
highlight the desired modulating output (MOD 1 or
MOD 2).
button to display the selected MOD
menu.
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.
(Sensor B only)
button to highlight
and buttons to
and buttons to
62-0254–03