SiUS04-702 Main Functions
Function and Control 25
1.6 Thermostat Control
Thermostat control is based on the difference between the room temperature and the setpoint.
Thermostat OFF Condition
The temperature difference is in the zone A.
Thermostat ON Condition
The temperature difference is above the zone C after being in the zone A.
The system resumes from defrost control in any zones except A.
The operation turns on in any zones except A.
The monitoring time has passed while the temperature difference is in the zone B.
(Cooling / Dry : 10 minutes, Heating : 10 seconds)
Cooling / Dry
Heating
B
A
OFF
ON
C
Cooling : –∆0.9˚F
Dry : –∆0.9˚F
Room temperature - setpoint
Cooling : –∆3.6˚F
Dry : –∆4.5˚F~–∆3.6˚F
(R5465)
B
A
OFF
ON
C
∆2.7˚F
Room temperature - setpoint
∆0˚F
(R5466)
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