Checkout Table And Checkout Example With Sensor A = 68°F/B = 73°F. - Honeywell T775A User Manual

T775A,B,C,D
CHECKOUT
Fig. 10—Checkout Table and checkout example with Sensor A = 68°F and Sensor B = 73°F.
HEAT OR COOL
MODE
DIFFERENTIAL
DESIGNATED
SENSOR
SETPOINT
SENSED
TEMPERATURE
HEAT OR COOL
SETPOINT
DIFFERENTIAL
DESIGNATED
SENSOR
SETPOINT
SENSED
TEMPERATURE
1
2
63-2489
CHECKOUT EXAMPLE WITH SENSOR A = 68° AND SENSOR B = 73°
LOAD 1
(HEAT)
2
A
70 OFF
68 ON
68
LOAD 1
IS ON
SELECT
NOTE: RELAYS ARE DE-ENERGIZED AT SETPOINT
LOAD 1
INDICATES LOAD STATUS WHEN SENSED TEMPERATURE REACHES SETPOINT.
INDICATES LOAD STATUS WHEN SENSED TEMPERATURE REACHES SETPOINT
MINUS DIFFERENTIAL (HEAT MODE).
LOAD 2 LOAD 3
(HEAT) (HEAT)
2
2
B A
1
72 OFF
74
70 ON
2
72
73 68
LOAD 2 LOAD 3
IS OFF IS ON
STAGE ENERGIZED 1 3 4
SET ENTER
CHECKOUT TABLE
LOAD 2 LOAD 3
12
LOAD 4
(HEAT)
2
B
1
1
OFF 76 OFF
ON 74 ON
2
2
73
LOAD 4
IS ON
LOAD 4
M7426