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Trane Technologies BAYSTAT152A, Installation, Operation And Maintenance Manual

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Touch-screen Programmable 
Thermostat

Installation, Operation, and Maintenance

June 2022

BAS-SVX44C-EN

Trane Part Number:

X13511538-01

Clarksville Part Number:

BAYSTAT152A

Service Part Number:

THT02775

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. 

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.

Summary of Contents for BAYSTAT152A

Page 1: ...all 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...

Page 2: ...to make changes to its content without obligation to notify any person of such revision or change Trademarks All trademarks referenced in this document are the trademarks of their respective owners Re...

Page 3: ...stallation and Wiring 11 Mounting the Thermostat and Cover Removal 11 Mounting the Backplate 11 Wiring and Wiring Diagrams 13 Wiring 13 Terminal Identification 14 Wiring Diagrams 14 Thermostat Cover R...

Page 4: ...ote Humidity Display and Control 41 System Lockout 42 To lock the thermostat 42 To unlock the thermostat 42 Temperature Cycle Control 43 Other Functional Components 46 Sleep Mode 46 Changeover Operati...

Page 5: ...Product features and functions Pre installation requirements Installation and wiring Power system tests and software reset Configuration option setup Other thermostat functions Temperature cycle cont...

Page 6: ...e 1 Installation Configuration Instructions X39641190 01 One 1 Setup Programming Instructions X39641189 01 One 1 bag of Two 2 machine screws Two 2 wood screws One 1 security screw Two 2 wall anchors T...

Page 7: ...ac maximum 32 Vac 50Hz to 60Hz Note Frequency is selected using Configuration Option 0190 Power Consumption 2 Watts 24 Vac RMS nominal Wire Size 18 to 22 AWG Output Terminal Rating 1A 30 Vac Temperatu...

Page 8: ...cool heat pump 2 heat 2 cool conventional 2 heat 1 cool conventional 1 heat 2 cool conventional 2 heat 2 cool heat pump 3 heat 2 cool heat pump Time and Dehumidify Settings Temporary Override TOV Sche...

Page 9: ...gions High traffic areas to reduce accidental damage or tampering Height Requirements It is recommended to mount the thermostat a maximum distance of 54 inches 137 cm above the floor If a parallel app...

Page 10: ...ice use shorter wire lengths Table 2 Maximum wire lengths Copper Wire size Maximum Recommended Wire Length From Thermostat to HVAC Equipment Remote Temperature Sensor to Thermostat Max a Remote Humidi...

Page 11: ...s on the HVAC equipment There is continuity and not more than 2 5 ohms resistance between the thermostat location and the HVAC equipment The wires are accurately labeled or color coded Mounting the Ba...

Page 12: ...tly to a wall surface hold the backplate against the surface and then level and mark the fastener locations 5 Secure the backplate using appropriate fasteners refer to the section Mounting Surfaces p...

Page 13: ...to the terminal block Note Refer to Table 3 p 14 and the wiring diagrams on page 15 through 18 to determine the correct terminal for each wire In some cases the terminal labels such as Y G or R correc...

Page 14: ...eat pump systems 6 pin connectors R 24 Vac heating Important Terminalshipped with jumper connected Remove jumper if the 24 Vac power supplies are separate Rc 24 Vac cooling Important Terminal shipped...

Page 15: ...le Transformer jumper installed Fan L2 L1 hot 24 Vac Heat Compressor L2 L1 hot 24 Vac Cooling Transformer Heating Transformer Two Transformers jumper removed Economizer TOD Dehumidification Remote Tem...

Page 16: ...Hs Dh Heat Economizer TOD Dehumidification Remote Temperature Sensor Remote Humidity Sensor L2 L1 hot jumper installed Fan 24 Vac C G Y W Rc R W2 Y2 A S1 S2 Hp Hs Dh Economizer TOD Dehumidification Re...

Page 17: ...nsformer Heating Transformer Two Transformers jumper removed Compressor 2 Economizer TOD Dehumidification Remote Temperature Sensor Remote Humidity Sensor Heat 2 C G Y W Rc R W2 Y2 A S1 S2 Hp Hs Dh Fa...

Page 18: ...essor 2 L2 L1 hot Single Transformer jumper installed Fan L2 L1 hot 24Vac Heat Compressor 1 L2 L1 hot 24 Vac Cooling Transformer Heating Transformer Two Transformers jumper removed Compressor 2 Econom...

Page 19: ...he 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 Close...

Page 20: ...The firmware version for 1 5 seconds in the clock digit location and finally Self testing If an error is detected the error code will display whereby the user can bypass the error by pressing the Canc...

Page 21: ...ows on the right hand side of the display screen Note Changing a test value will start stop the test as described in Table 6 Refer to Figure 17 for arrow locations and Table 6 p 23 for a list of test...

Page 22: ...ton and system test mode display Configuration Button System Test Mode Display System Test Number Save and move to the next higher or previous lower System Test Number Increment or Decrement the Test...

Page 23: ...r turns ON 6 Dehumidify Relay Dh 0 Dh relay turns OFF 1 Dh relay turns ON 7 LCD Full Segment 0 No action 1 Odd segments turn ON even segments turn OFF 2 Even segments turn ON odd segments turn OFF 3 F...

Page 24: ...or serious injury a Removing the thermostat cover as shown in the section Mounting the Backplate p 11 b Pressing and holding the Configuration button for 3 seconds The configuration wrench icon displ...

Page 25: ...d Stage Heat W W2 1st 2nd Stage Comp Y Y2 Fan G 8 2H 1C Conv 1st 2nd Stage Heat W W2 1st Stage Comp Y Fan G 9 1H 2C Conv 1st Stage Heat W 1st 2nd Stage Comp Y Y2 Fan G 10 2H 2C HP 1st 2nd Stage Comp Y...

Page 26: ...to 9 in 1 increments Allows adjustment of the external relative humidity reading to account for accuracy tolerance and potential drift FW should use the adjusted value for display and humidity control...

Page 27: ...le to the default values of Options 0231 and 0232 and in addition return the schedule to default values 0240 Heat Temperature Range 90 40 90 40 F to 90 F 4 32 4 C to 32 C Only for systems with heat st...

Page 28: ...wn selected Sa and Su shown unselected Confirm Screen cleaning timer Setpoint display from top clockwise Increment Fahrenheit Celsius Decrement Override hourglass Cool heat setpoint thermometer Temper...

Page 29: ...12 hour or 24 hour readout refer to Option Number 0110 in Table 7 p 25 22 Touch either or to switch between hours or minutes 23 Touch or to increment or decrement the hours minutes Touch and hold eit...

Page 30: ...setting selected in Step 2 and activate the newly selected system setting Touching Cancel will exit system mode setup without saving any changes Fan Mode Note The fan is only displayed on systems conf...

Page 31: ...areas Note For Auto H C systems use the cool mode icon or the heat mode icon to toggle between cool and heat setpoints respectively To adjust the TOV time period Touch the clock icon to enter TOV Time...

Page 32: ...0 Schedule Setup Schedules can be used to set the day time periods and to set the fan and setpoints This section describes the following Schedule display mode Day period time schedule change mode Setp...

Page 33: ...Any additional day or day groups selected are temporarily loaded with the primary values Any changes will apply to all selected day or day groups Note Day or Day Groups can only be selected in Day Pe...

Page 34: ...fan occupancy and temperature setpoints for each period as desired 17 When all changes are completed touch to save settings A second touch of will exit out of Schedule Change mode and return to the H...

Page 35: ...le settings When any changes are made to the schedule the first touch of OK will save changes and return to the last schedule changes mode The second touch of OK if no further changes are made will ex...

Page 36: ...25 5 C AUTO 8 00 AM 62 F 16 5 C 85 F 29 5 C AUTO 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 2 Period Defaults 8 00 AM 70 F 21 0 C 78 F 25 5 C AUTO 10 00 PM 62 F 16 5 C...

Page 37: ...the display along with the flame under the setpoint When the thermistor used for H C control is between the Cool and Heat Setpoints inclusive the last active system setpoint Cool or Heat will show on...

Page 38: ...and Override modes are not available The following features are not displayed occupied unoccupied period schedules Fan can be set to either AUTO or ON Setpoints are changed directly by touching the s...

Page 39: ...tting for filter replacement is one 1 month To change this duration refer to Configuration Option Number 0275 in Table 7 p 25 Clean Screen The Clean Screen feature allows the user to clean the LCD scr...

Page 40: ...oor temperatures Remote sensor is typically placed outdoors near compressor equipment a See Option numbers 0220 0221 and the section Compressor andAuxiliary Heat Lockout p 48 for more details 3 Uses S...

Page 41: ...N and 0 5 seconds OFF Blink rate for error code E1 is 3 seconds Error code display and 1 second Time Display 2 External humidity sensor is enabled a 96 to 99 blinks humidity reading and dehumidify fun...

Page 42: ...y touch and hold both setpoint increment decrement arrows for 4 seconds as shown below When the mode is locked the lock icon blinks 1 Hz 20 80 for 5 seconds and then goes solid To unlock the thermosta...

Page 43: ...ould run at 50 duty cycle 6 minutes ON and 6 minutes OFF 80 duty cycle 9 6 minutes ON and 2 4 minutes OFF or other variations of the duty cycle Note The cycling rate described above is active only whe...

Page 44: ...ur for first stage compressor Option Number 0160 is used for the first stage of heat pump systems or the first cool stage of conventional systems General Notes The second stage output increases the sp...

Page 45: ...ump systems The algorithm of cycling control is the same as the first stage output However it has independent cycle period setting Both the first and second stage use the same temperature differential...

Page 46: ...heating mode For cooling the extension time is 90 seconds and for heating it is 40 seconds refer to 0270 and 0271 Economizer Time of Day TOD You can set the Economizer or TOD mode using Option Number...

Page 47: ...the Indoor Remote Temperature Display when Configuration Option Number 0210 is set to 3 It does not apply to the Outdoor Remote Temperature Display when Configuration Option Number 0210 is set to eith...

Page 48: ...stored to permanent memory These permanent values are restored each time at startup If a Checksum error occurs in permanent memory the factory default preset parameters are used and are stored to per...

Page 49: ...m pr Lockout Aux Lockout Temperature IPN0221 0 Compr Lockout Temperature IPN0220 0 Both C om pressor H P and Auxiliary H eat C om pressor H P Only O utdo or T em pe ra tu re 40 to 60F 4 5 to 15 5C IPN...

Page 50: ...only use the thermistor that is within an acceptable range to control Cool and Heat When both thermistors return to range the temperature averaging resumes E0 will flash if either is out of range Note...

Page 51: ...rror Code and 1s Time Display However it will continue to operate at its current mode refer to the section Error Codes p 50 If any of the above exceptions listed should occur the temperature control w...

Page 52: ...lly showing Run Test 7 refer to the section System Tests p 21 to view odd even and full icon segment display Power cycle the thermostat If problem persists have the thermostat serviced or replaced by...

Page 53: ...BAS SVX44C EN 53 Notes...

Page 54: ...54 BAS SVX44C EN Notes...

Page 55: ...BAS SVX44C EN 55 Notes...

Page 56: ...are committed to using environmentally conscious print practices Trane by Trane Technologies NYSE TT a global climate innovator creates comfortable energy efficient indoor environments for commercial...

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