Honeywell T775U

T775U SERIES 2000 CONTROLLER

39 62-0255–07

Contents

Main INSTALLATION INSTRUCTIONS 62-0255-07 T775U Series 2000 Electronic Stand-Alone Controller PRODUCT DESCRIPTION Temperature Sensorsa (Sensor A or B) Differential Pressure Sensors Humidity Sensors CO2 Sensors Universal Sensors BEFORE INSTALLATION When Installing This Product INSTALLATION AND SETUP MOUNTING Controller Mounting WIRING Wiring Connections Access Temperature Sensor Wiring Reset Temperature Control Multiple Parallel Temperature Sensors Humidity, Pressure, and Universal Sensor Wiring T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER C S 62-025507 6 + Controller Wiring WARNING Controller Wiring Method W Controller Wiring Details T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 9 62-025507 WIRING APPLICATION EXAMPLES + Fig. 12. Wiring for Two-stage Control 24 Vac Input and 24 Vac Load. Fig. 13. Wiring for mod motor or direct coupled actuator with 4 to 20 mA control input. Fig. 14. Wiring for Two-stage Control with 120 or 240 Vac (120 Vac Input and 120 Vac Load). WARNING Power Loss Humidity, Pressure, and Universal Sensor Calibration Temperature Sensor Calibration INTERFACE OVERVIEW Using the LCD Panel Interface Home Button Menu Button Left and Right Arrow Buttons (W and X) Home Screen Accessing the Menus Program, Schedule, and Summary Menus Setup Menu Using the Menus PROGRAMMING OVERVIEW Setpoint and Differential Setpoint High Limit Programming the T775U Controller 1. SETUP Setup Procedure 1.1. Entering Setup Mode 1.2. Setting up the Sensors 1.2.1. Number of SENSORS 1.2.2. SENSOR A 1.2.2.1. TYPE 1.2.2.2.1. UNITS [1097 PTC)] 1.2.2.2.2. UNITS 4-20mA) 1.2.2.2.3. MIN or MAX VALUE 0.0 1.2.2.3. CALIBRATE 0.0 0.0 1.2.2.5. Exit Sensor A Setup 1.2.3. SENSOR B (Temperature only) 1.3. Setting up the Outputs 1.3.1. Setting up the Modulating Outputs 1.3.1.1. TYPE (of output signal) 1.3.1.2. MIN OUT % 1.3.1.3. INTEGRAL 1.3.1.4. DERIVATIVE 1.3.1.5. SCHEDULE 1.3.1.6. RESET 1.3.1.7. Hide 1.3.1.7. Exit Modulating Outputs Setup 1.3.2. NBR OF RELAYS 1.3.3. OPTIONS 1.3.3.1. USE SCHED 1.3.3.2. MIN OFF or MIN ON 0 1.3.3.3. DI OPTIONS (digital input options) 0 1.3.3.4. SHOW RT (show run time hours) 1.3.3.5. Exit Options Setup 1.3.4. Setting up the Relays 1.3.4.1. SCHEDULE 1.3.4.2. RESET 1.3.4.3. RESET RT (run time) 1.3.4.4. EXIT Relay Setup 1.4. Exiting Setup 2. PROGRAMMING OUTPUTS (MOD AND RELAY) WITH NO RESET 2.1. Entering Program Mode 2.1.1. Program Menu for Outputs with No Reset 2.1.2. SETPOINT 2.1.3. SETBACK 2.1.3. SENSOR 2.1.5. THROTTLING RANGE or DIFFERENTIAL 2.1.6. ACTION 2.2. Program Next Output Output or Relay) 1.3. Exit Programming without Reset 3. PROGRAMMING OUTPUTS (MOD AND RELAY) WITH RESET 3.1. Setting Up the Controller for Reset Determining and Setting the Reset Value s Reset Example: Setback (optional) Example: 3.2. Program Menus for Outputs with Reset 3.2.1. SP MAX A1 or BOILER MAX 3.2.2. RESET B1 or OUTSD MIN 3.2.3. SP MIN A2 or BOILER MIN 3.2.4. RESET B2 or OUTSD MAX 3.2.5. THROTTLING RANGE or DIFFERENTIAL 3.2.6. ACTION -10 3.2.7. SETBACK OFFSET 3.3. Second Modulating Output and Relays -10 210 160 20 30 40 50 60 70 F80 4. SCHEDULING Creating a Schedule 4.1. Entering Schedule Mode 4.2. OPTIONS 4.2.1. SET TIME 4.2.2. SET DATE 4.2.3. DAYLIGHT (daylight saving time) 4.3. Setting Individual Schedules 4.3.1. E1 SETPT (setpoint for event 1) 4.3.2. E1 TIME (time for event 1) 4.3.3. E2 SETPOINT (setpoint for event 2) 4.3.4. E2 TIME (time for event 2) 4.3.5. EXIT (exit from selected time period settings) 4.4. Exiting Scheduling Mode SUMMARY MENU TROUBLESHOOTING Power Loss Errors and Diagnostics Error Message DoC Emissions Compliance Immunity Compliance Safety Compliance FCC Compliance Statement: