Sp Min A2 Or Boiler Min; Reset B2 Or Outsd Max - Honeywell T775U2006 Installation Instructions Manual

T775U SERIES 2000 CONTROLLER
PROGRAM
MOD 1
SP MIN A2
Fig. 69. Program - Sensor A Min. Setpoint.
PROGRAM
MOD 1
RESET B2
Fig. 70. Program - Sensor B Min. Setpoint.
PROGRAM
MOD 1
THROT RNG
Fig. 71. Program - Throttling Range or Differential.
62-0255–05
3. PROGRAMMING OUTPUTS (MOD AND RELAY) WITH RESET
MENU
PROGRAM
MOD 1
SP MIN A2
160 o
F
ENTER
MINIMUM
SETPOINT FOR
SENSOR A
M24574
MENU
PROGRAM
MOD 1
RESET B2
70 o
F
ENTER
SENSOR B VALUE
FOR MINIMUM
SETPOINT
M24575
MENU
PROGRAM
MOD 1
THROT RNG
20
o
F
ENTER
THROTTLING
RANGE FOR
FOR MOD 1
M24577

3.2.3. SP MIN A2 or BOILER MIN

(Setpoint minimum for Sensor A)
1. From the menu, use the
light BOILER MIN or SP MIN A2.
2. Press the button to display the setpoint value.
3. Use the and
desired minimum setpoint temperature.
Default: 140°F (60°C)
Range: -40°F to 248°F (-40°C to 120°C)
4. Press the button to accept the setpoint tempera-
ture and display the next option.

3.2.4. RESET B2 or OUTSD MAX

(Sensor B value when at MIN A2 Setpoint)
1. From the menu, use the
light RESET B2.
2. Press the button to display the setpoint value.
3. Use the and
desired setpoint temperature.
Default: 60°F (16°C)
Range: -40°F to 248°F (-40°C to 120°C)
4. Press the button to accept the value and display
the next option.
3.2.5. THROTTLING RANGE or DIFFERENTIAL
Throttling Range displays for Modulating outputs.
Differential is used for the Relay outputs.
1. From the menu, use the
light THROT RNG or DIFFERNTL.
2. Press the button to display the throttling range
value.
3. Use the and
desired value.
Default: 20°F (-6.6°C)
Range: 1°F to 150°F (1°C to 66°C)
4. Press the button to accept the value and display
the next option.
The Throttling Range brackets the setpoint setting, e.g., if
the setpoint is 72°F and the throttling range is 10°F, then
the effective throttling temperature range is 67°F to 77°F.
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.
30
and buttons to high-
buttons to increase/decrease the
and buttons to high-
buttons to increase/decrease the
and buttons to high-
buttons to increase/decrease the