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General| Type | Electronic |
|---|---|
| Output Voltage | 24 VAC |
| Control Output | Triac |
| Number of Outputs | 4 |
| Display | LCD |
| Input | Thermistor |
| Mounting | Surface |
| Communication Protocol | BACnet |
| Input Voltage | 20 to 30 Vac, 50/60 Hz |
| Humidity Range | 5 to 95% RH, non-condensing |
Details on compatible temperature sensors for T775 controllers.
Information on humidity sensors compatible with T775U models.
Details on low differential pressure sensors for T775U controllers.
Information on universal sensors compatible with T775U models.
List of compatible actuators for T775 controllers.
Explanation of integral action for minimizing control output errors.
Explanation of derivative action for PID control response.
Relationship between setpoint and differential for relay outputs.
Setting an irreversible maximum setpoint value.
Offsetting temperature for subsequent outputs using a reset curve.
Description of optional setback temperature adjustments.
Controlling loop water temperature for heat pump systems.
Controlling sump water temperature for chiller applications.
Controlling discharge water temp for rotary compressors.
Controlling cooling tower fan speed based on sump/outside air.
Scheduling fan, pump, or other devices based on time.
Modulating a damper or valve based on temperature input.
Controlling boiler water temp using a reset curve.
Controlling chiller water temp using a reset curve.
Multistage boiler control based on discharge water temperature.
Multistage boiler control with reset based on water temperature.
Multistage chiller control based on discharge water temperature.
4-stage boiler control with pump output and reset via expansion module.
Reciprocating chiller control with freeze protection.
Control for boilers and multistage cooling.
Controlling duct pressure via VFD with pressure sensor input.
Controlling OA damper based on CO2 sensing.
Calculating zone air setpoint based on outside air using reset curve.
Controlling discharge air temp based on return air using reset curve.
Differential control for solar water heating applications.
Maintaining a differential temperature between two sensors.
Replacing a W973A Logic Panel with a T775M2030.
Replacing a W964F Aquatrol Panel with a T775R.
Replacing an S984 Step Controller with a T775L.
Replacing a W7100C Discharge Air Controller with a T775L.
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