Trane Technologies BAYSTAT152A Installation, Operation And Maintenance Manual

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Installation, Operation, and Maintenance

Touch-screen Programmable

Thermostat

Trane Part Number:

Clarksville Part Number:

Service Part Number:

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of

heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.

Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.

When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are

attached to the equipment.

June 2022

X13511538-01

BAYSTAT152A

THT02775

SAFETY WARNING

BAS-SVX44C-EN

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Summary of Contents for Trane Technologies BAYSTAT152A

Page 1 Touch-screen Programmable Thermostat X13511538-01 Trane Part Number: Clarksville Part Number: BAYSTAT152A THT02775 Service Part Number: SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
Page 2 Introduction Warnings, Cautions, and Notices Safety advisories appear throughout this manual as required. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions. The three types of advisories are defined as follows: Indicates a potentially hazardous situation which, if not avoided, could result in death WARNING or serious injury.
Page 3: Table Of Contents
Table of Contents Overview ............5 Packaged Contents and Tools .
Page 4 Table of Contents Temporary Override (TOV) Setup ........31 General Notes: .
Page 5: Overview
Overview The Trane™ Touch-screen Programmable Thermostat is for use with conventional Rooftop Units (RTU) air conditioners and heat pumps. These units are compact, easy to install, configure, and operate. This installation and operation manual provides information about the following: • Specifications and dimensions •...
Page 6: Packaged Contents And Tools
Packaged Contents and Tools Packaged Contents Each programmable thermostat ships with the following: • One (1) Trane Touch-screen Programmable Thermostat • One (1) Installation/Configuration Instructions (X39641190-01) • One (1) Setup/Programming Instructions (X39641189-01) • One (1) bag of: – Two (2) machine screws –...
Page 7: Specifications And Dimensions
Specifications and Dimensions The following table and illustration provides the thermostat specifications and dimensions. Table 1. Specifications and dimensions Storage Temperature: –4°F to 158°F (–20°C to 70°C) Relative Humidity: Between 5% and 95% (noncondensing) Operating Temperature: 32°F to 122°F (0°C to 50°C) Humidity: Between 5% and 95% (noncondensing) 24 Vac (minimum 18 Vac/maximum 32 Vac), 50Hz to 60Hz Input Power:...
Page 8: Product Features And Functions
Product Features and Functions The following is a list of features and functions of the programmable thermostat. Features Liquid Crystal Display (LCD) Touch Screen: with symbols for temperature, setpoints, and system operating modes. In addition, the thermostat has settings for the day of the week, time of day, and occupancy.
Page 9: Pre-Installation
Pre-Installation This section provides the following pre-installation information: • Location considerations • Height requirements • Mounting surfaces • Maximum wire length Location Considerations When selecting a location, avoid the following areas when installing the thermostat: • Direct sunlight • Direct airstream of air diffusers •...
Page 10: Maximum Wire Length
Pre-Installation Maximum Wire Length The thermostat may not function properly if the total resistance of any of the thermostat wires exceeds 2.5 ohms (refer to Table Ensure that the wires from the thermostat to the HVAC equipment do not exceed lengths shown in Table 2.
Page 11: Installation And Wiring
Installation and Wiring This section provides information about the following: • Mounting the thermostat and cover removal • Wiring and wiring diagrams • Thermostat cover replacement Mounting the Thermostat and Cover Removal Before beginning installation, it is recommended to re-read the section, “Pre-Installation,”...
Page 12 Installation and Wiring Figure 1. Security screw removal and cover release Cover thumb tab NOTE: If the security screw is installed, remove it before attempting to remove the cover. Security Screw 2. Push the cover thumb tab to release the cover from the backplate as shown above. 3.
Page 13: Wiring And Wiring Diagrams
Installation and Wiring Wiring and Wiring Diagrams Wiring WARNING Hazardous voltage! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury. NOTICE Equipment damage! Applying excessive voltage to the thermostat can permanently damage it.
Page 14: Terminal Identification
Installation and Wiring Terminal Identification Table 3 identifies the programmable thermostat terminals. Table 3. Terminal identification Connector Terminal Type Label Terminal Description Dehumidify relay External humidity sensor input External humidity sensor power External temperature sensor External temperature sensor Economizer relay Stage 2 compressor control relay (W1)W2 (Aux or Em heat relay)
Page 15 Installation and Wiring Figure 4. Programmable Thermostat, 1H/1C, Conventional (Option 1) Dehumidification Remote Humidity Sensor Single Transformer: Remote Temperature Sensor Economizer/TOD (jumper L1 (hot) 24 Vac installed) Heat Compressor Dehumidification Remote Humidity Sensor Two Transformers: Remote Temperature Sensor Economizer/TOD Heating Transformer L1 (hot) (jumper 24 Vac...
Page 16 Installation and Wiring Figure 7. Programmable Thermostat, 1H, Conventional With Fan (Option 4) Dehumidification Remote Humidity Sensor Remote Temperature Sensor Economizer/TOD L1 (hot) (jumper 24 Vac installed) Heat Figure 8. Programmable Thermostat, 1C, Conventional (Option 5) Dehumidification Remote Humidity Sensor Remote Temperature Sensor Economizer/TOD L1 (hot)
Page 17 Installation and Wiring Figure 10. Programmable Thermostat, 2H/2C, Conventional (Option 7) Dehumidification Remote Humidity Sensor Single Transformer: Remote Temperature Sensor Economizer/TOD Compressor 2 Heat 2 (jumper L1 (hot) 24 Vac installed) Heat 1 Compressor 1 Dehumidification Remote Humidity Sensor Two Transformers: Remote Temperature Sensor Economizer/TOD Compressor 2...
Page 18: Thermostat Cover Replacement
Installation and Wiring Figure 12. Programmable Thermostat, 1H/2C, Conventional (Option 9) Dehumidification Remote Humidity Sensor Single Transformer: Remote Temperature Sensor Economizer/TOD Compressor 2 L1 (hot) (jumper 24 Vac installed) Heat 1 Compressor 1 Dehumidification Remote Humidity Sensor Two Transformers: Remote Temperature Sensor Economizer/TOD Compressor 2 Heating Transformer...
Page 19 Installation and Wiring 9. Hook the cover over the top of the backplate. Apply light pressure to the bottom of the cover until it snaps into place. 10. To help deter tampering, install the security screw into the bottom of the cover as shown below. Figure 15.
Page 20: Power, System Tests, And Software Reset
Power, System Tests, and Software Reset This section provides information about: • Applying power • Power-up test • System tests Applying Power Restore power to the HVAC equipment. The thermostat initiates a power-up test and will display an error, if one is detected (refer to the sections, “Power-up Test,”...
Page 21: System Tests
Power, System Tests, and Software Reset Table 5. Error code test sequence Test Sequence Error Code and Description • Permanent data error. Access error or checksum error is detected. • Temperature sensor error. Checks internal and/or external temperature sensor depending on setting of configuration option 0210.
Page 22 Power, System Tests, and Software Reset Figure 17. Configuration button and system test mode display Configuration Button Save and move to the next higher or Increment or Decrement the previous lower System Test Number Test Value Test Value System Test Number Save and move to next higher...
Page 23: Software Reset
Power, System Tests, and Software Reset Table 6. System tests and statuses Test Numbers Test Value/Description • 0= Heat stages turn OFF Heat System (W, W2) • 1= Heat stage 1 turns ON and heat stage 2 turns OFF • 2= Heat stage 2 turns ON and heat stage 1 turns OFF •...
Page 24: Configuration Option Setup
Configuration Option Setup This section provides information about changing system configurations. For reference, Table 7, p. lists the Configuration Option Numbers, corresponding values, and descriptions. NOTICE Adverse Control System Behavior! Improper configuration setup could cause unwanted, possibly adverse control system behavior. Be sure to configure the thermostat according to your system type.
Page 25: Installation Options
Configuration Option Setup Installation Options Table 7. Installer configuration setup menu Opt. Name Values/Descriptions Notes This setting affects indoor temperature display and setpoint • 0= °F, 1 degree resolution • 3= °C with 0.5 degree 0100 Temperature indication/ display resolutions. Outdoor temperature display area is Resolution •...
Page 26 Configuration Option Setup Table 7. Installer configuration setup menu (continued) Opt. Name Values/Descriptions Notes Only for systems with both heat and cool stages. (Refer to 0180 Changeover 0= Manual 1= Auto Only applies to auto or manual changeover systems. (Refer to •...
Page 27 Configuration Option Setup Table 7. Installer configuration setup menu (continued) Opt. Name Values/Descriptions Notes Occupancy setting can be changed during scheduling for 0232 Starting Default Period Occ/ If option #0231 is set to 2 If option #0231 is set to 4 each period/day.
Page 28: Operation
Operation If configured properly, the touch-screen programmable thermostat will control HVAC equipment to maintain room temperature automatically. This section provides general descriptive and procedural information intended for daily operation. Thermostat Icon Descriptions The illustration below provides a description of all icons for the thermostat. Bubbled letters in red correspond to the letters indicated in each section title.
Page 29: Functions
Functions There are common functions on the programmable thermostat that require initial setting or changing. This section describes the following setup modes: • Time setup, dehumidify setup, and system mode setup • Fan mode and temporary override (TOV) mode • Schedule setup •...
Page 30: System Mode Setup
Functions System Mode Setup Note: If unable to change the system mode to a desired setting, check the system type setting and the manual/auto-changeover setting (refer to the section, “Configuration Option Setup,” p. 24) to verify how the thermostat is configured with heat and cool modes, and that it permits manually changing them.
Page 31: Temporary Override (Tov) Setup
Functions 2. Next, touch in the fan selection box to put the thermostat into TOV Temporary Override Mode and to step to the next available setting as shown below. Auto Mode: On Mode: Auto Flashes Arrows Flash 3. Refer to the next section, Temporary Override (TOV) Setup to set overrides or touch to cancel and return to the Home screen.
Page 32: Schedule Setup
Functions • Quick TOV Active Mode will show Occ ( ) icon while User Configurable TOV Active Mode Occ/ UnOcc will be blank. • In Quick TOV Active Mode, the typical display will show the TOV time remaining as HH:MM (Hours:Minutes) for 45 seconds.
Page 33: Day/Period/Time Schedule Change Mode
Functions • Touch blinking to proceed to the next section, Day/Time/Period Schedule Change Mode, before the 20-second time out. Time out changes to 60 seconds for the change modes. Top Arrow: Cool Bottom Arrow: Heat Day/Period/Time Schedule Change Mode This mode is used to select the day, day group, multiple day groups, period times, fan, and occupancy. The default settings, Number of Periods, Occupancy Settings, and Day Groups, are configured using Configuration Option Numbers 0231, 0232, and 0233 respectively.
Page 34: Setpoint/Fan Schedule Change Mode
Functions Top Arrow: Cool The following are the available day group schedules that can be configured Bottom Arrow: Heat with Installation Option Number 0233: • All Days [default]: (Mo Tu We Th Fr Sa Su) • Five days, plus one day, plus one day: (Mo Tu We Th Fr) (Sa) (Su) •...
Page 35: General Notes For All Schedule Modes
Functions General Notes for All Schedule Modes • Touching Cancel ( ) will cause all changes after the last save to be lost, the display will return to the Home screen, and the system will return to the last save schedule settings. •...
Page 36 Functions Table 8. Default settings and worksheet Symbol Legend Listed Below 6:00 AM 70°F (21.0°C) 78°F (25.5°C) AUTO 8:00 AM 62°F (16.5°C) 85°F (29.5°C) AUTO 4-Period Defaults 6:00 PM 70°F (21.0°C) 78°F (25.5°C) AUTO 10:00 PM 62°F (16.5°C) 82°F (28.0°C) AUTO 8:00 AM 70°F (21.0°C)
Page 37: Other Thermostat Functions
Other Thermostat Functions The programmable thermostat has other functional features which provide more flexibility and control in its operation. Those features are: • Heat/Cool indicator display (for both programmable and non-programmable thermostats (refer to the next section, “Heat/Cool Indicator Display” •...
Page 38: Non-Programmable Mode
Other Thermostat Functions Non-programmable Mode The thermostat is capable of being configured as non-programmable (refer to Configuration Option Number 0140 in Table 7, p. 25). If the thermostat is set to non-programmable mode, certain icons are not displayed and scheduling and override functionality is not available. The Home screens will similarly display as shown below.
Page 39: Filter Change
Other Thermostat Functions Filter Change Filter change indicates when the system change filter timer is expired. The filter icon ( ) will blink continuously 1.5 seconds ON and 0.5 seconds OFF on the Home screen (or TOV Active screen) until this feature is reset.
Page 40: Local/Remote/Outdoor Temperature Display And Control
Other Thermostat Functions Local/Remote/Outdoor Temperature Display and Control The thermostat has the capability of displaying the local indoor temperature and/or the remote indoor/ outdoor temperatures, depending on the value setting for Configuration Option Number 0210. There are two terminals to connect the remote sensor, S1 and S2. The table that follows provides information about displaying either local, remote, or outdoor temperatures and how temperatures are controlled (refer to Configuration Option Number 0210 in Table 7, p.
Page 41: Local/Remote Humidity Display And Control
Other Thermostat Functions Local/Remote Humidity Display and Control The thermostat has the capability of displaying the local/remote humidity readings, depending on the value setting for Configuration Option Number 0200. An external humidity sensor is connected to terminal Hp(+) and Hs(-). The table that follows provides information about humidity sensor selection. For details about setting or changing dehumidification, refer to the section, “Dehumidify Setup,”...
Page 42: System Lockout
Other Thermostat Functions Table 9. Remote humidity sensor: Current/voltage versus humidity Current (mA) Voltage Relative Humidity Range % (±) (Estimated)0 — (Estimated)5 — (Low Calibration Point) 25 10.4 (High Calibration Point) 75 18.4 19.2 (Estimated) 95 — (Estimated) 100 — System Lockout The thermostat can be locked out to prevent unauthorized personnel from changing settings.
Page 43: Temperature Cycle Control
Temperature Cycle Control The heat and cool cycling rate, expressed in cycles per hour (CPH), indicates how often heating or cooling system is turned on when temperature is within the temperature differential from the setpoint (which is 1°F [0.5°C]). There are ten options (1–10) for heat stages and five options (1–5) for cool stages. The number selected is the maximum number of times the stage is cycled in 1 hour.
Page 44 Temperature Cycle Control Figure 21. Auto heat and cool systems General Notes: • The number of cooling or heating cycles are fixed according to CPH setting value. • The duty cycle is varied during the cycling control. • There are five (5) options for cooling CPH selection and ten (10) options for heating CPH selection. •...
Page 45 Temperature Cycle Control Figure 23. Auto 3/heat and 2/cool systems General Notes: • The third auxiliary-stage heat output is only used for 3H/2C heat pump systems. • The algorithm of cycling control is the same as the first-stage output. However, it has independent cycle period setting.
Page 46: Other Functional Components
Other Functional Components This section provides additional information for understanding thermostat operation or programming. Some of the following sections refer to specific Option Numbers that are listed in Table 7, p. Sleep Mode Sleep mode places the CPU into a low power state when the thermostat is inactive. Note: Sleep mode is not implemented, but is noted here for future reference.
Page 47: Heat/Cool Relay Confirmation
Other Functional Components Note: The user can manually reset the thermostat to all default settings by changing Configuration Option Number 0300 to 1. Heat/Cool Relay Confirmation As a guard against inadvertent relay switching, the thermostat firmware will set/reset the output relays every half hour if the relationship of setpoint versus temperature is out of range as follows: •...
Page 48: Compressor Protection
Other Functional Components Compressor Protection Compressor protection prevents damage to the compressor of either an air conditioning or heat pump system. Damage could occur if the compressor is restarted too soon after shutdown. This feature causes the compressor to delay between 0 to 10 minutes, depending on previous state of compressor (ON or OFF), and Configuration Option Number 0182.
Page 49 Other Functional Components There is a minimum 5°F (2.5°C) deadband between compressor and auxiliary heat lockout temperatures. Configuration option #220 sets the compressor lockout point; #221 sets the auxiliary lockout point. Refer to the following illustrations. C om pres s or H P O nly Aux Lockout 40 to 60F (4.5 to 15.5C ) T em perature...
Page 50: Error Codes And Exceptions
Error Codes and Exceptions Error Codes Error codes indicate a possible need for technical assistance. Error codes display where the time of day is located. When an error occurs, the error code will blink first (for 3 seconds) and then blink the time of day (for 1 second) and back to the error code in 4-second intervals.
Page 51: Exceptions
Error Codes and Exceptions Exceptions There are exceptions to be noted when using the thermostat.These exceptions are: • If the indoor or outdoor temperature is lower or higher than the measuring range, the temperature display will blink either “--F” (Fahrenheit) or “--C” (Celsius) at 1.5 seconds ON and 0.5 seconds OFF. All other outputs remain functional.
Page 52: Troubleshooting
Troubleshooting Use the following table to diagnose and resolve problems. Table 12. Troubleshooting Problem Solution Error code E0 - Thermistor • For configuration option #210 set to 1, 2, 3, or 4: error. Check the sensor terminals S1 and S2 for secure connection. If wires are securely connected, try replacing the sensor. If the error persists, have the thermostat serviced or replaced by a qualified Trane supplier.
Page 53 Notes BAS-SVX44C-EN...
Page 54 Notes BAS-SVX44C-EN...
Page 55 Notes BAS-SVX44C-EN...
Page 56 Trane - by Trane Technologies (NYSE: TT), a global climate innovator - creates comfortable, energy efficient indoor environments for commercial and residential applications. For more information, please visit trane.com or tranetechnologies.com. Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.