Installation Instructions
Page 1
... cable shield must be affected by: - OR MULTI-STAGE CONVENTIONAL/HEAT PUMP SYSTEMS APPLICATION The T7351 Commercial Programmable Thermostat controls 24 Vac commercial single zone heating, ventilating and air conditioning (HVAC) equipment. The subbase mounts on the product to... equipment control connections. Failure to sense ambient conditions, install the thermostat in these instructions carefully. concealed pipes and chimneys. - T7351 Commercial Programmable Thermostat FOR SINGLE- If you have questions, call Honeywell Customer Care Center at average temperature. (See Fig. 1.) WHEN...
... cable shield must be affected by: - OR MULTI-STAGE CONVENTIONAL/HEAT PUMP SYSTEMS APPLICATION The T7351 Commercial Programmable Thermostat controls 24 Vac commercial single zone heating, ventilating and air conditioning (HVAC) equipment. The subbase mounts on the product to... equipment control connections. Failure to sense ambient conditions, install the thermostat in these instructions carefully. concealed pipes and chimneys. - T7351 Commercial Programmable Thermostat FOR SINGLE- If you have questions, call Honeywell Customer Care Center at average temperature. (See Fig. 1.) WHEN...
Installation Instructions
Page 2
... or without adaptive hardware. 1. Loosely insert the mounting screws into the thermostat top. 2. Mounting Thermostat on subbase. 2 Mounting thermostat on Subbase (Fig. 4) With the subbase installed, mount the thermostat: 1. for a vertical box, part 209651A is only for appearance. ...in a horizontal line) with the wall. 5. for T7351 Thermostat. by 101.6 mm) wiring box can be mounted horizontally (with the LCD facing upwards). Tighten mounting screws. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Mounting Subbase The subbase mounts horizontally. WIRES THROUGH WALL MOUNTING HOLES...
... or without adaptive hardware. 1. Loosely insert the mounting screws into the thermostat top. 2. Mounting Thermostat on subbase. 2 Mounting thermostat on Subbase (Fig. 4) With the subbase installed, mount the thermostat: 1. for a vertical box, part 209651A is only for appearance. ...in a horizontal line) with the wall. 5. for T7351 Thermostat. by 101.6 mm) wiring box can be mounted horizontally (with the LCD facing upwards). Tighten mounting screws. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Mounting Subbase The subbase mounts horizontally. WIRES THROUGH WALL MOUNTING HOLES...
Installation Instructions
Page 3
...cool mode. - T7351 Intelligent™ Fan ON control logic Occupancy Call for conventional heat, the equipment (i.e. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Wiring Follow equipment manufacturer wiring instructions when available. Refer to pre- To set for Heat/Cool Scheduled Motion Sensor Effective.... Securely tighten each terminal for heating or cooling. Plug the hole with local electrical codes and ordinances. SETTINGS Using Thermostat Keys The thermostat keys are locked off : - Fan default setting is unoccupied. NOTE: Use System and Fan keys to : ...
...cool mode. - T7351 Intelligent™ Fan ON control logic Occupancy Call for conventional heat, the equipment (i.e. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Wiring Follow equipment manufacturer wiring instructions when available. Refer to pre- To set for Heat/Cool Scheduled Motion Sensor Effective.... Securely tighten each terminal for heating or cooling. Plug the hole with local electrical codes and ordinances. SETTINGS Using Thermostat Keys The thermostat keys are locked off : - Fan default setting is unoccupied. NOTE: Use System and Fan keys to : ...
Installation Instructions
Page 4
... running when system is operating. Heat pump and electric heat systems must be configured correctly to the thermostat, the display will display WAIT and is automatically exited after power up or down key. 5. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Occupied HEAT Temperature COOL Not Occupied HEAT COOL Set Day/Time Day Time Override Temporary Temporary Occupied...
... running when system is operating. Heat pump and electric heat systems must be configured correctly to the thermostat, the display will display WAIT and is automatically exited after power up or down key. 5. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Occupied HEAT Temperature COOL Not Occupied HEAT COOL Set Day/Time Day Time Override Temporary Temporary Occupied...
Installation Instructions
Page 5
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Text Default Choices HEATPMP 0 0 - 2 COOLSTG 1 0 - 4 HEATSTG 1 0 - 3 AUX STG 0 0 - 2 AUX CON 0 0 - 3 WALLMOD 0 0 - 3 OATSENS 0 DATSENS 0 HUMSENS 0 0 - 1 0 - 1 0 - 2 OCCSENS 0 0 - 1 FAN HT 0 0 - 1 XFAN ..., Remote Setpoint, Bypass 0) 3: T7771 (Remote sensor, Remote Setpoint, Bypass 1) (Bypass 0 means that by pressing the override button a second time the thermostat can return to the unoccupied period.) Outdoor Air Sensor Selection 0: None 1: Remote Outdoor Air Sensor Discharge Air Sensor Selection 0: None 1: Remote Discharge Air Sensor...
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Text Default Choices HEATPMP 0 0 - 2 COOLSTG 1 0 - 4 HEATSTG 1 0 - 3 AUX STG 0 0 - 2 AUX CON 0 0 - 3 WALLMOD 0 0 - 3 OATSENS 0 DATSENS 0 HUMSENS 0 0 - 1 0 - 1 0 - 2 OCCSENS 0 0 - 1 FAN HT 0 0 - 1 XFAN ..., Remote Setpoint, Bypass 0) 3: T7771 (Remote sensor, Remote Setpoint, Bypass 1) (Bypass 0 means that by pressing the override button a second time the thermostat can return to the unoccupied period.) Outdoor Air Sensor Selection 0: None 1: Remote Outdoor Air Sensor Discharge Air Sensor Selection 0: None 1: Remote Discharge Air Sensor...
Installation Instructions
Page 6
...; F (-29° - 49° C) -20° - 120° F (-29° - 49° C) 0 - 20 DDF/HR Temporary Setpoint Adjustment 0: 0 Deg. F 1: 1 Deg. F 3: 3 Deg. F 4: 4 Deg. F 5: 5 Deg. F 2: 2 Deg. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 3. F Temporary Occupied Duration 1 to 8 hours Temporary Display Adjustment 0 - 3 = 0 to 3 DDF 4 - 7 = -4 to -1 DDF Min Cool Setpoint Max Heat Setpoint Heating Lockout (Only displayed if Outdoor...
...; F (-29° - 49° C) -20° - 120° F (-29° - 49° C) 0 - 20 DDF/HR Temporary Setpoint Adjustment 0: 0 Deg. F 1: 1 Deg. F 3: 3 Deg. F 4: 4 Deg. F 5: 5 Deg. F 2: 2 Deg. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 3. F Temporary Occupied Duration 1 to 8 hours Temporary Display Adjustment 0 - 3 = 0 to 3 DDF 4 - 7 = -4 to -1 DDF Min Cool Setpoint Max Heat Setpoint Heating Lockout (Only displayed if Outdoor...
Installation Instructions
Page 7
... Temporary Not Occupied" keys simultaneously. 2. To enable this function, the user must set in temperature setpoint. Press Set Day and Set Time keys simultaneously. 2. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Text Default Choices DSTMON1 3 DSTDAY1 40 0 - 12 0 - 31, 32 - 74 DSTMON2 11 DSTDAY2 33 0 - 12 0 - 31, 32 - 74 HT RESP 1 0 - 3 CL RESP 0 0 - 1 Table...
... Temporary Not Occupied" keys simultaneously. 2. To enable this function, the user must set in temperature setpoint. Press Set Day and Set Time keys simultaneously. 2. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Text Default Choices DSTMON1 3 DSTDAY1 40 0 - 12 0 - 31, 32 - 74 DSTMON2 11 DSTDAY2 33 0 - 12 0 - 31, 32 - 74 HT RESP 1 0 - 3 CL RESP 0 0 - 1 Table...
Installation Instructions
Page 8
... the display indicates YES. To cancel this operation reverts the schedules to modify. (Used also with call for heat or cool during occupied periods. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Grouping Temperature Set Override Schedule Table 5. T7351 Key Function Summary. (Continued) Button Definition Occupied Heat Occupied Cool Not Occupied Heat Not Occupied Cool Sets Occupied...
... the display indicates YES. To cancel this operation reverts the schedules to modify. (Used also with call for heat or cool during occupied periods. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Grouping Temperature Set Override Schedule Table 5. T7351 Key Function Summary. (Continued) Button Definition Occupied Heat Occupied Cool Not Occupied Heat Not Occupied Cool Sets Occupied...
Installation Instructions
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...option to revert to TEST. To cancel this option, ensure display indicates NO. 3. The display gives the option to check the thermostat configurations and operation. Three of this set point is bypassed during Test Mode. Reheat. - This selection is still active, repeat ... comfort due to memory, overwriting the old saved schedule: 1. Unlike Dehumid Hot Gas BP the relay remains energized during cooling. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Test Mode (Occupied/Not Occupied/ Schedule Day) CAUTION Possible Equipment Damage. To enter test mode, press up or down until the ...
...option to revert to TEST. To cancel this option, ensure display indicates NO. 3. The display gives the option to check the thermostat configurations and operation. Three of this set point is bypassed during Test Mode. Reheat. - This selection is still active, repeat ... comfort due to memory, overwriting the old saved schedule: 1. Unlike Dehumid Hot Gas BP the relay remains energized during cooling. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Test Mode (Occupied/Not Occupied/ Schedule Day) CAUTION Possible Equipment Damage. To enter test mode, press up or down until the ...
Installation Instructions
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... Energized Low more than one De-energized Low one or less De-energized Auxiliary output during call for multiple cooling stages for two reasons: 1. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Dehumid Hot Gas BP The auxiliary output operates as shown in Table 6.
... Energized Low more than one De-energized Low one or less De-energized Auxiliary output during call for multiple cooling stages for two reasons: 1. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Dehumid Hot Gas BP The auxiliary output operates as shown in Table 6.
Installation Instructions
Page 11
... CONTACTOR 3 1 2 L2 L1 (HOT) COMPRESSOR CONTACTOR 1 4 ECONOMIZER 1 POWER SUPPLY. M29323 Fig. 7. M29254 Fig. 8. Typical hookup of T7351F2010 in two-stage heat and four-stage cool conventional system. 11 62-0258-05 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 WHEN INSTALLED ON...HC TERMINAL BECAUSE THE T3 TERMINAL IS INTERNALLY TIED TO HC, WHICH IS ALSO TIED TO TERMINAL 1 COMMON AT THE SENSOR. WIRING DIAGRAMS T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT GND SENSOR SET PT LED BYPASS TR23-H REMOTE SENSOR 1 2 3 4 5 6 7 8 9 10 11 12 OUTDOOR AIR SENSOR DISCHARGE...
... CONTACTOR 3 1 2 L2 L1 (HOT) COMPRESSOR CONTACTOR 1 4 ECONOMIZER 1 POWER SUPPLY. M29323 Fig. 7. M29254 Fig. 8. Typical hookup of T7351F2010 in two-stage heat and four-stage cool conventional system. 11 62-0258-05 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 WHEN INSTALLED ON...HC TERMINAL BECAUSE THE T3 TERMINAL IS INTERNALLY TIED TO HC, WHICH IS ALSO TIED TO TERMINAL 1 COMMON AT THE SENSOR. WIRING DIAGRAMS T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT GND SENSOR SET PT LED BYPASS TR23-H REMOTE SENSOR 1 2 3 4 5 6 7 8 9 10 11 12 OUTDOOR AIR SENSOR DISCHARGE...
Installation Instructions
Page 12
...THE SENSOR. If missing 24 Vac: • Check if circuit breaker is out of T7351F2010 in the Off position; Thermostat is locked. Keypad is configured for °F or °C display. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT GND SENSOR SET PT LED BYPASS TR23-H REMOTE SENSOR 1 2 3 4 5 6...temperature range stops heating higher or cooling lower.) were configured. Temperature display is not working. powered. Bad thermostat location. Relocate the thermostat. TROUBLESHOOTING GUIDE (TABLE 7) Table 7. Press both Run Schedule and Copy, then reconfigure the display. Symptom...
...THE SENSOR. If missing 24 Vac: • Check if circuit breaker is out of T7351F2010 in the Off position; Thermostat is locked. Keypad is configured for °F or °C display. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT GND SENSOR SET PT LED BYPASS TR23-H REMOTE SENSOR 1 2 3 4 5 6...temperature range stops heating higher or cooling lower.) were configured. Temperature display is not working. powered. Bad thermostat location. Relocate the thermostat. TROUBLESHOOTING GUIDE (TABLE 7) Table 7. Press both Run Schedule and Copy, then reconfigure the display. Symptom...
Installation Instructions
Page 13
...or Auto. System indicator The call for the system to the On position. • Check wiring between thermostat and HVAC equipment. With no display of heating or cooling equipment in the Off position; Conventional heating equipment ...if so, replace fuse. • Check if the HVAC equipment power switch is snowflake: cool) yet given. Thermostat minimum off • Wait up to five minutes for cool/heat is in self-test. Verify operation of ...8226; Check if circuit breaker is activated. • Configure cooling response. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 7.
...or Auto. System indicator The call for the system to the On position. • Check wiring between thermostat and HVAC equipment. With no display of heating or cooling equipment in the Off position; Conventional heating equipment ...if so, replace fuse. • Check if the HVAC equipment power switch is snowflake: cool) yet given. Thermostat minimum off • Wait up to five minutes for cool/heat is in self-test. Verify operation of ...8226; Check if circuit breaker is activated. • Configure cooling response. T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Table 7.
Installation Instructions
Page 16
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Automation and Control Solutions 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. Rev. 09-10 Printed in U.S.A. Registered Trademark © 2010 Honeywell International Inc. 62-0258-05 M.S.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Automation and Control Solutions 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. Rev. 09-10 Printed in U.S.A. Registered Trademark © 2010 Honeywell International Inc. 62-0258-05 M.S.