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Honeywell SUITEPRO TB6575, Installation Instructions Manual, Page: 19 / 20

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Honeywell SUITEPRO TB6575 Installation Instructions Manual Download Page 19

TB6575/TB8575 DIGITAL FAN COIL THERMOSTATS

19

62-0311—05

Activity Sensing does 
not exit when button 
pressed

All buttons are locked.

Make sure keypad lockout is disabled. Set ISU code #18, value = 
0.

Freeze Protection 
does not activate

System Type is set to 
Cool.

Freeze protection is not activated when system type is Cool (ISU 
code #2; value = 1). Change System Type.

System mode is not Off.

Set the System mode button to Off.

Auto Fan Reset does 
not activate

Incorrect ISU code.

Set the Installer Setup code #24 to Enabled (value = 1 or 2).

Calling for Heat/Cool 
setpoint couldn't be 
satisfied.

Only after the setpoint is satisfied, will the auto fan reset timer 
activate.

Table 8. Troubleshooting. (Continued)

Symptom Possible 

Cause 

Action 

Summary of Contents for SUITEPRO TB6575

Page 1: ...re easily made with a press of a key Valves and auxiliary electric heaters can be controlled using a relay or contactor controlled by the system switch FEATURES Simple intuitive user interface Pre installed lead wires for fast installation TB6575A and TB6575B models only Backlight display permits easy viewing in any light Four buttons allow manual control of system operation fan speed and temperat...

Page 2: ...ble of accepting up to 2 x 18 AWG 0 8 sq mm 1 x 16 AWG 1 3 sq mm or 1 x 14 AWG 2 1 sq mm wires Accepts stranded or unstranded 14 28 gauge wire NOTES 1 The TB6575A1000 model is pre fitted with color coded fly leads 16 AWG attached to seven terminals 2 The TB6575B1000 model is pre fitted with color coded fly leads 16 AWG attached to six terminals 3 The TB8575A1000 model does not have fly leads attac...

Page 3: ...re or a temperature outside of the thermostat operating range of 18 C to 49 C 0 F to 120 F With displayed the thermostat ceases to operate When the temperature returns to within its operating limits the thermostat returns to operation The optional freeze protect feature should be used if low temperatures can occur The thermostat must be mounted flush to the wall The thermostat can be mounted direc...

Page 4: ...press the adaptor plate screw cover into place Fig 2 Mounting sub base and thermostat to 2 x 4 in junction box Fig 3 Mounting sub base and thermostat using the adaptor plate 50033847 001 Terminal Wiring Table 3 provides the terminal wiring for each model and application NOTE The TB6575A1000 and TB6575B1000 models have color coded fly leads attached to the termi nals Refer to Table 3 for the color ...

Page 5: ... Cool with Seasonal Changeover 9 W Y 9 9 9 9 O R O 9 4 pipes Heat and Cool with Manual Changeover 9 W Y 9 9 9 9 O R O 4 pipes Heat and Cool with Auto Changeover 9 W Y 9 9 9 9 O R O 2 pipes Heat or Cool with Auxiliary Heat 9 W Y A 9 9 9 9 O R O 9 4 pipes Heat and Cool with Manual Changeover or Auto Changeover 9 W Y 9 9 9 9 O R O TB6575B1000 120 240 Vac Terminal Identifier L W Y n ai i Terminal 3 is...

Page 6: ... grounded controller case IMPORTANT All wiring must comply with local electrical codes and ordinances or as specified on installation wiring dia grams Wall module wiring can be sized from 16 to 22 AWG 1 31 to 0 33 sq mm depending on the application The maximum length of wire from the thermostat to a wall module is 1000 ft 305 m Twisted pair wire is recommended for wire runs longer than 100 ft 30 5...

Page 7: ...uto Changeover wiring diagram 120 240 Vac shown Fig 11 Four pipes Heat and Cool Manual Auto changeover wiring diagram 120 240 Vac shown Fig 12 Two pipes Heat or Cool with Auxiliary Heat and Manual Changeover wiring diagram 120 240 Vac shown L W Y Y A GI Gm Gh N Rs Sc SB Ps N L HOT M27566 REMOTE SENSOR REMOTE SETBACK HEAT VALVE FAN N L HOT M27567 REMOTE SENSOR REMOTE SETBACK COOL VALVE FAN L W Y Y ...

Page 8: ...S FAN MEDIUM SETTING WILL OPERATE ON HIGH SPEED CONNECT TERMINAL 7 TO THE MID FAN SPEED WIRE FROM THE PREVIOUS SYSTEM REWIRE THE PREVIOUS MID SPEED FAN WIRE TO THE NEUTRAL CIRCUIT IN THE SYSTEM CHANGE INSTALLER SETUP IS CODE 9 TO 2 FOR 2 SPEED FAN CONTROL 3 4 N L W Y Y A GI Gm Gh N Rs Sc SB Ps 24 VAC M27573 HEAT VALVE FAN L1 HOT L2 1 REMOTE SENSOR REMOTE SETBACK 1 POWER SUPPLY PROVIDE DISCONNECT M...

Page 9: ...s to pull the thermostat straight away from the sub base 24 VAC M27576 VALVE FAN L1 HOT L2 1 REMOTE SENSOR REMOTE SETBACK 1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED PIPE SENSOR R W Y Y A GI Gm Gh C Rs Sc SB Ps 24 VAC M27577 HEAT VALVE FAN L1 HOT L2 1 REMOTE SENSOR REMOTE SETBACK 1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED COOL VALVE ...

Page 10: ...verload will damage the thermostat The thermostat has a safety fuse rated at 15 A 250 Vac If the fuse blows the thermostat must be replaced The fuse is not field replaceable This fuse is provided as a safety feature to prevent fire if the thermostat is overloaded Installer Setup ISU Mode To enter Installer Setup Mode Press and hold both the System button labeled Heat Cool and the Up Arrow button f...

Page 11: ...n Auxiliary Heat is on 3 Valve Output Type 0 Valve energized on call for heat or cool Default 1 Valve de energized on call for heat or cool 4 Space Sensor Type 0 Onboard Sensor Default 1 Remote Sensor TR21 or other 20K Ohm sensor 5 Pipe Sensor Only displays when value 3 or 6 for the System Type in ISU code 2 is selected 0 Contact Open Cool mode Contact Closed Heat mode Pipe sensor will flash on di...

Page 12: ...ingle Setpoint 2 to 6 Range is 2 to 6 Default is 3 Heat switching point setpoint switching differential Cool switching point setpoint switching differential Available when Single Setpoint is chosen for the control method for 4 pipe Auto ISU 10 11 CPH Value for Heat 1 to 12 Range is 1 to 12 Default is 4 The number selected indicates the maximum times Heating is cycled on per hour CPH ISU 2 selectio...

Page 13: ...ing from Occupied to UnOccupied 5 Button Press Default Press and hold Heat Cool Off button for 3 seconds and thermostat will go into Economy Setback 20 Remote Setback for Heating 50 to 70 Range is 50 F to 70 F Default is 64 F Used when the thermostat is in the Unoccupied state 21 Remote Setback for Cooling 72 to 90 Range is 72 F to 90 F Default is 79 F 22 Activity Sensing 0 Disabled Default This w...

Page 14: ...on the remote setback input from an occupancy sensor time switch or hotel card key The thermostat controls to the user installer defined setback setpoints for increased energy savings The LCD displays Economy Setback just to the right of the main temperature display to indicate the Remote Setback mode is active When Remote Setback is active all buttons on the thermostat are disabled However the bu...

Page 15: ...er will occur when the pipe temperature goes above the threshold for heating or below the threshold for cooling If a purge has not occurred or a call has not been satisfied in awhile the pipe temperature may start to get close to the ambient temperature In this case the thermostat will only changeover once the temperature falls into the opposite threshold 2 Pipes with Auto Changeover For this appl...

Page 16: ...te purge will occur when it is switched back into Heat or Cool 4 PIPES AUTO CHANGEOVER Single Set Point Method In 4 pipe auto changeover with a single setpoint the temperature is always controlled to the setpoint Switching points are used to determine when to switch between heating and cooling modes If the current mode is heat and the temperature drifts above the cool switch point Setpoint Switchi...

Page 17: ...ooling equipment Verify operation of equipment in Installer Test mode Heat does not turn on Heat On is solid in the display Heating equipment failure For TB6575A B 1 Check for 120 240 Vac at the equipment between power and common terminals L and N 2 Check for 120 240 Vac between the heat W and common N terminals If 120 240 Vac is present the thermostat is functional For TB8575A 1 Check for 24 Vac ...

Page 18: ...ed heating and or cooling equipment Heating equipment does not turn off and heat temperature setting is set below room temperature Heat On is not in the display Incorrect System Type configured Check that the Installer Setup code 2 System Type value matches the installed heating and or cooling equipment Cannot set the system setting to Heat System Type Installer Setup code 2 is set to Cool Only va...

Page 19: ... Freeze protection is not activated when system type is Cool ISU code 2 value 1 Change System Type System mode is not Off Set the System mode button to Off Auto Fan Reset does not activate Incorrect ISU code Set the Installer Setup code 24 to Enabled value 1 or 2 Calling for Heat Cool setpoint couldn t be satisfied Only after the setpoint is satisfied will the auto fan reset timer activate Table 8...

Page 20: ... Honeywell International Inc 1985 Douglas Drive North Golden Valley MN 55422 Honeywell Limited Honeywell Limitée 35 Dynamic Drive Toronto Ontario M1V 4Z9 customer honeywell com U S Registered Trademark 2010 Honeywell International Inc 62 0311 05 M S Rev 10 10 Printed in U S A ...

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