Honeywell TB6575B1000/U Installation Instructions - Page 9

TB6575/TB8575 DIGITAL FAN COIL THERMOSTATS R W/Y VALVE Y/A GI Gm FAN Gh 24 VAC L1 (HOT) C L2 1 Rs REMOTE SENSOR Sc SB REMOTE SETBACK Ps PIPE SENSOR 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M27576 Fig. 17. Two pipes (Heat or Cool) auto changeover wiring diagram (24 Vac shown). R W/Y HEAT VALVE Y/A COOL VALVE GI Gm FAN L1 Gh 24 VAC (HOT) C L2 1 Rs REMOTE SENSOR Sc SB REMOTE SETBACK Ps 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M27577 Fig. 18. Four pipes (Heat and Cool) Manual/Auto Changeover wiring diagram (24 Vac shown). R W/Y VALVE Y/A AUX GI Gm FAN Gh 24 VAC L1 (HOT) C L2 1 Rs REMOTE SENSOR Sc SB REMOTE SETBACK Ps PIPE SENSOR 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M27578 Fig. 19. Two pipes (Heat or Cool) with Auxiliary Heat and Manual Changeover wiring diagram (24 Vac shown). . L W/Y Y/A GI 1 Gm Gh 2 C Rs Sc SB Ps HEAT VALVE COOL VALVE 6 FAN 3 24 VAC 4 REMOTE SENSOR REMOTE SETBACK L1 5 (HOT) L2 1 REMOVE PRE-WIRED WIRE FROM TERMINAL 5 (MID FAN SPEED). 2 JUMPER TERMINALS 5 AND 6 (MID AND HIGH FAN SPEEDS). FAN MEDIUM SETTING WILL OPERATE ON HIGH SPEED. 3 CONNECT TERMINAL 7 TO THE MID FAN SPEED WIRE FROM PREVIOUS SYSTEM. 4 REWIRE THE PREVIOUS MID FAN SPEED WIRE TO THE NEUTRAL CIRCUIT IN THE SYSTEM. 5 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 6 CHANGE INSTALLER SETUP IS CODE 9 TO 2 FOR 2 SPEED FAN CONTROL. M31329 Fig. 20. Wiring diagram when missing a wire for electromechanical retrofit (24 Vac shown). Removing the Thermostat WARNING Risk of electrical shock. Can cause severe injury, property damage or death. Disconnect power supply before servicing. CAUTION Equipment damage hazard. Improper removal can damage the thermostat. Carefully follow the thermostat removal directions. If it is necessary to remove the thermostat from the subbase, refer to Fig. 21 and perform the following steps: 1. Turn off the thermostat by pressing the system button until OFF displays. 2. Remove the power source from the thermostat. 3. Remove the small safety screw at the bottom of the thermostat. 4. Use both hands to pull the thermostat straight away from the sub-base. 9 62-0311-05