Trane THT02775 User manual

July 2011 © 2011 Trane. All rights reserved. X39641190-01A
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Installation/Configuration Instructions
Programmable Touch Screen Thermostat
Ordering Numbers: X13511538010, BAYSTAT152A, THT02775
Illustration shows
a typical Home
screen display.
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.
Warnings, Cautions, and Notices
Warnings, cautions, and notices are provided in appropriate places
throughout this document:
WARNING: Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may also be used to
alert against unsafe practices.
NOTICE:Indicates a situation that may result in equipment or property-
damage only accidents.
Specifications and Overall Dimensions
5.90 in
(150 mm)
1.30 in
(33 mm)
0.3 in
(8 mm)
4.65 in
(118 mm)
Category Specifications/Descriptions
Input power:
24Vac, 50Hz or 60Hz (18Vac to 32Vac)
Note: Frequency is selected using Configuration Option
0190.
Wire size: 18 to 22 AWG
Output terminal ratings: 1A resistive load @ 30Vac
Display type: LCD/Touch
System modes:
• Heat
• Cool
• Auto
• Off
• Emergency Heat
Fan modes: • On
• Auto
Operating Temperature
Range: 32°F to 122°F (0°C to 50°C)
Temperature display range: -45°F to 199°F (-42.8°C to 92.8°C)
Temperature setpoint range: • Heat Setpoint: 40°F to 90°F (4.0°C to 32°C)
• Cool Setpoint: 50°F to 99°F (10°C to 37°C)
Humidity display range: 0% to 99% (1% steps)
Humidity setpoint range: 30% to 80% (1% steps)
Installation
NOTICE
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 will
permanently damage it.
To mount the backplate:
1. Shut off the power to all HVAC equipment. If the
security screw is used, remove it. Refer to the
illustration.
2. Push the cover thumb tab to release the cover from the
backplate as shown.
3. Route the wires through the opening in the backplate.
Wires should be marked to ensure proper connection
to terminals.
4. If mounting the backplate directly 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. The
thermostat should be mounted level and plumb for
best air movement through the thermostat enclosure.
6. Locate the terminal blocks from the packaging (new
installation) or remove from pin header (existing
installation).
7. Connect the wires to the terminal blocks and then push
the terminal blocks onto the circuit board pins.
8. Push excess wire through the hole in the wall cavity or
into the junction box. Do not coil excess wire between
the thermostat and the backplate.
(W1)W2
Y2
S1
S2
Hp
Hs
Dh
A
C
G
(O/B)W
Rc
R
Y
CG YWRcR
W2Y2A S1S2HpHsDh
Security Screw
NOTE: If the security screw is
installed, remove it before
attempting to remove the cover.
Push cover thumb tab to release
cover from backplate.
Terminal Block Identification
8-pin Connector
Dh(a)
(a) Label order above is how they appear on the thermostat terminal block.
Dehumidify relay
Hs External humidity sensor input
Hp External humidity sensor power
S2 External temperature sensor
S1 External temperature sensor
A Economizer relay
Y2 Stage 2 compressor control relay
(W1)W2 (Emergency heat relay)(b) Second stage heat relay
(b) Text in parentheses indicates that it applies to heat pump systems.
6-pin Connector
R 24Vac heating
Important: Terminal shipped with jumper connected. Remove jumper if the heat/cool 24 Vac power supplies
are separate.
Rc 24Vac cooling
Important: Terminal shipped with jumper connected. Remove jumper if the heat/cool 24 Vac power supplies
are separate.
(O/B)W (Changeover valve)(b) Heat relay
Y Stage 1 compressor control relay
G Fan relay
C Common
Configuration
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.
To change the installation configuration:
1. Apply electrical power to the thermostat.
2. Determine the configuration options and then write down the
selections or other notes on the table in Panel 6.
3. To activate Configuration Option Setup mode:
WARNING
Live Electrical Components!
The circuit board is energized. Have a qualified licensed electrician
or other individual who has been properly trained in handling live
electrical components perform this step. Failure to follow all
electrical safety precautions when exposed to live electrical
components could result in death or serious injury.
a. Remove the thermostat cover.
b. Press and hold the Configuration button for 3 seconds.
The configuration wrench icon displays along with
the configuration option number and value.
4. Press the center or (as shown) to increment or
decrement the Option Number.
Note: Changing the Option Number with the up/down arrows
will also Save the Option Value. In addition, the OK will
increment the Option Number and Save the Option Value.
5. Press the right side or (as shown) to increment or decrement the Option Value.
6. Any of the following actions will save settings, exit Configuration Mode, and return to the Home screen:
•Push the configuration button momentarily (less than 3 seconds)
•Touch and hold for 2 seconds
•A 10-minute time out after the last touch in Configuration Mode
Configuration Button
Configuration Mode Display
Option
Number
Option
Value
Save and move to the next
higher or previous lower
Option Number
Increment or Decrement the
Option Value
Save and move to the next
higher Option Number or
hold for 2 seconds to save and
exit Configuration Mode

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of advanced controls and HVAC systems, comprehensive building services, and parts. For more information, visit www.Trane.com.
© 2011 Trane. All rights reserved.
X39641190-01A 28 July 2011
NEW
Installation Options
Table 1. Installer configuration setup menu
No. Name Def Values/Descriptions Notes
0100 Temperature
indication/Resolution
0 • 0= °F, 1 degree resolution
• 1= °F, 0.5 degree resolution
• 2= °C, 1 degree resolution
• 3= °C with 0.5 degree resolution
• 4= °C with 0.1 degree resolution
This setting affects indoor temperature display and setpoint display
resolutions. Outdoor temperature display area resolution is always +/-
1 for both F and C. Refer to Option 0210.
0110 Clock Format 12 • 12= 12-hours clock • 24= 24-hour clock
0120 Year 11 • 11–99 Available year range: 2011–2099. This value is updated to the real time
clock after setting. Day of the week is updated automatically.
0121 Month 1 • 1–12 This value is updated to the real time clock after setting. Day of the week
is updated automatically.
0122 Day 1 • 1–31 Month dependent; this value is updated to the real time clock after
setting. Day of the week is updated automatically.
0125 Daylight Savings 2 • 0= Disabled
• 1= US (1987), changeover at
2:00am
• 2= US (2007), changeover at
2:00am
• 3= Europe, changeover at 1:00am
• 4= Manual, changeover at 2:00am
0126
0127
0128
0129
• Spring Ahead Month
• Spring Ahead Day
• Fall Back Month
• Fall Back Day
•03
•01
•11
•01
• 01-12
• 01-31
• 01-12
• 01-31
Options available only if 0125 is set to 4.
0130 System Selection 8 • 1= 1H/1C (Conv) 1st Stage Heat
(W), 1st Stage Comp (Y), Fan (G)
• 2= 1H/1C (HP) 1st Stage Comp (Y),
Changeover (O/B), Fan (G)
• 3= 1H (Conv) 1st Stage Heat (W),
without fan
• 4= 1H (Conv) 1st Stage Heat (W),
Fan (G)
• 5= 1C (Conv) 1st Stage Comp (Y),
Fan (G)
• 6= 2H/1C (HP) 1st Stage Comp (Y),
Changeover (O/B), Auxiliary Heat
(W1), Fan (G)
• 7= 2H/2C (Conv) 1st & 2nd 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,Y2), Changeover (O/B), Fan
(G)
• 11= 3H/2C (HP) 1st & 2nd Stage
Comp (Y,Y2), Changeover (O/B),
Auxiliary Heat (W1), Fan (G)
0140 Schedule Options 1 0=Non-programmable 1= Programmable
0150 TOD/Economizer Output
(Terminal A)
0 • 0= Unused
• 1= TOD energizes terminal A during
occupied period, not during
unoccupied period.
• 2= Economizer energizes terminal A
during a call for cool.
TOD is not available in Non-programmable Mode (refer to Option 0140).
0151 Heat Fan Operation 0 0= System controls fan 1= Thermostat controls fan Only shown for conventional system with heat stages and fan capability.
For heat pump, the fan relay operates with thermostat control.
0153 Reversing Value O/B 0 0= O/B ON when call for cool 1= O/B ON when call for heat Only shown for heat pump systems.
0160 Cycles Per Hour (CPH)
[First Stage Compressor]
3 1–5 Only for systems with cool or HP stage. Refer to 0130. Selection in this
stage changes 2nd stage cool default CPH.
0161 CPH (Second Stage
Compressor)
3 1–5 Only for systems with 2-cool or HP stages. Refer to Option 0130.
0162 CPH (First Stage
Conventional Heat)
5 1–10 Only for conventional systems with heat stages. Refer to Option 0130.
Selection in this stage changes default CPH of 2nd stage heat.
0163 CPH (Second Stage
Conventional Heat)
9 1–10 Only for conventional systems with two stages of conventional heat.
0164 CPH for Auxiliary Heat 9 1–10 Only shown for 2H/1C HP or 3H/2C HP systems. Refer to Option 0130.
0165 CPH for Emergency Heat 9 1–10 Only shown for 2H/1C HP or 3H/2C HP systems. Refer to Option 0130.
0170 Continuous Backlight 0 0= Backlight ON time is limited 1= Backlight ON continuously
0180 Changeover 1 0= Manual 1= Auto Only for systems with both heat and cool stages. Refer to Option 0130.
0181 Deadband 3 • 2= 2°F (1°C)
• 3= 3°F (1.5°C)
• 4= 4°F (2.0°C)
• 5= 5°F (2.5°C)
• 6= 6°F (3.0°C)
• 7= 7°F (3.5°C)
• 8= 8°F (4.0°C)
• 9= 9°F (4.5°C)
Only applies to auto or manual changeover systems. Refer to Option
0180.
0182 Minimum Compressor Off
Time
5 • 0= 0 minutes
• 1= 1 minute
• 2= 2 minutes
• 3= 3 minutes
• 4= 4 minutes
• 5= 5 minutes
Only for systems with cool stage or heat pump. Refer to Option 0130.
This setting will extend the compressor OFF time beyond any other
delays that are incorporated into the Heat/Cool software algorithm.
0190 Power Supply Frequency 0 0= 60 Hz 1= 50 Hz Power supply input is 24 Vac nominal at either 60 Hz or 50 Hz.
0200 Dehumidify Sensor
Selection
1 • 0= Humidity display and function is
disabled
• 1= Internal humidity sensor
enabled
2= External humidity sensor enable For external humidity control, a 4–20 mA humidity sensor should be
connected to the Hp and Hs terminals to avoid error code E1.
0205 Dehumidification Control 0 0= Active Control 1= Passive Control Active control toggles Dh output terminal On and Off as specified by the
dehumidify algorithm and is used with a device having its own
dehumidification equipment. Passive control runs cool mode for up to 1
extra minute whenever there is a call for cool and dehumidification.
0206 Internal Humidity Offset
Adjustment
0 -9% to 9% in 1% increments Allows adjustment of the internal relative humidity reading to account
for accuracy, tolerance, and potential drift. FW should use the adjusted
value for display and humidity control.
0207 External Humidity Offset
Adjustment
0 -9% 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.
0210 Temperature Sensor
Selection
0 • 0= Internal sensor only (10k)
• 1= Internal sensor for H/C control
(outdoor for display only) [10k]
• 2= internal sensor for H/C control
(outdoor for Compr/Aux lockout
control([10k]
• 3= Remote indoor sensor for H/C
control (10k)
• 4= Use average temperature =
(local+S1/S2)/2 for H/C control.
Setting 2 applies only to HP systems and is disabled on all conventional
systems.
For setting 1, 2, or 4; if either temperature sensor is out of range, then
the E0 error code will display.
0220 Heat Pump Compressor
Lockout Point
0 • 0= None
• 15= 15°F (–9.5°C)
• 20= 20°F (–6.5°C)
• 25= 25°F (–4.0°C)
• 30= 30°F (–1.0°C)
• 35= 35°F (1.5°C)
• 40= 40°F (4.5°C)
• 45= 45°F (7.0°C)
Only for heat pump systems with more heat stages than cool stages and
remote outdoor control sensor. Refer to 0130 and 0210.
Note: A 5°F (2.5°C) deadband between heat pump and auxiliary
lockout will be enforced.
0221 Heat Pump Auxiliary
Lockout Point
0 • 0= None
• 40= 40°F (4.5°C)
• 45= 45°F (7.0°C)
• 50= 50°F (10.0°C)
• 55= 55°F (13.0°C)
• 60= 60°F (15.5°C)
Only for heat pump systems with more heat stages than cool stages and
remote outdoor control sensor. Refer to 0130 and 0210.
Note: A 5°F (2.5°C) deadband between heat pump and compressor
lockout will be enforced.
0230 Temporary Override
Duration Limit
3 • 0= zero hours
• 1= one hour
• 2= two hours
• 3= three hours
• 4= four hours
Used for temporary override (TOV) starting duration time. Setting of
zero does not disable TOV.
0231 Starting Default Number
of Periods
2 2= two periods 4= four periods Provides a starting default number of periods for all days of the week.
0232 Starting Default Period
Occ/Unocc Definitions
4If option #0231 is set to 2
Day—Night
• 0= UnOcc—UnOcc
• 1= UnOcc—Occ
• 2= UnOcc—UnOcc
• 3= UnOcc—Occ
• 4= Occ—UnOcc
• 5= Occ—Occ
• 6= Occ—UnOcc
• 7= Occ—Occ
• 8= UnOcc—UnOcc
• 9= UnOcc—Occ
• 10= UnOcc—UnOcc
• 11= UnOcc—Occ
• 12= Occ—UnOcc
• 13= Occ—Occ
• 14= Occ—UnOcc
• 15= Occ—Occ
If option #0231 is set to 4
Morn—Day—Evening—Night
• 0= UnOcc—UnOcc—UnOcc—Unocc
• 1= UnOcc—UnOcc—Unocc—Occ
• 2= UnOcc—UnOcc—Occ—UnOcc
• 3= UnOcc—Unocc—Occ—Occ
• 4= UnOcc—Occ—UnOcc—UnOcc
• 5= UnOcc—Occ—UnOcc—Occ
• 6= UnOcc—Occ—Occ—UnOcc
• 7= UnOcc—Occ—Occ—Occ
• 8= Occ—UnOcc—UnOcc—UnOcc
• 9= Occ—UnOcc—UnOcc—Occ
• 10= Occ—UnOcc—Occ—UnOcc
• 11= Occ—UnOcc—Occ—Occ
• 12= Occ—Occ—UnOcc—UnOcc
• 13= Occ—Occ—UnOcc—Occ
• 14= Occ—Occ—Occ—UnOcc
• 15= Occ—Occ—Occ—Occ
Occupancy setting can be changed during scheduling for each
period/day.
0233 Days Options for
Scheduling Mode
3 • 0= 1 day; Mo-Su all days share the
same schedule
• 1= 5+1+1 days; Mo-Fr share a
schedule. Sa and Su each have an
independent schedule
• 2= 5+2 days; Mo-Fr share a
schedule. Sa-Su share a schedule.
• 3= 7 days; Each day has an
independent schedule
Any value toggle of this option (0233) will reset the schedule to the
default values of Options 0231 and 0232. In addition, it will 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 stage. Refer to Option 0130.
0241 Cool Temperature Range 50 50–99; 50°F to 99°F 10–37; 10°C to 37°C Only for systems with cool stage. Refer to Option 0130.
0260 Temperature Display
Offset
0 • –3= –3°F (–1.5°C)
• –2= –2°F (–1.0°C)
• –1= –1°F (–0.5°C)
• 0= None
• 1= 1°F (0.5°C)
• 2= 2°F (1.0°C)
• 3= 3°F (1.5°C)
Only applies to control temperature and display temperature for internal
and indoor remote sensor. Does not apply to outdoor temperature for
display.
0270 Extended Fan-on Time
Heat
0 0= Off 90= ninety seconds This option is not available if option 0151=0 or if the system is cool only.
Refer to Option 0130.
0271 Extended Fan-on Time
Cool
0 0= Off 40= forty seconds This option is not available for systems with heat only. Refer to Option
0130.
0275 Filter Change Indicator 1 • 0= OFF
• 1= 30 days
• 3= 90 days
• 4= 120 days
• 6= 180 days
• 12= 365 days
Filter change disabled in OFF. Timer values start on first power up or
reset of an active filter icon.
0300 Restore Factory Defaults 0 0= No 1= Yes No= No action; Yes= Resets all parameters to default except
calendar/daylight savings time/system selection.
Table 1. Installer configuration setup menu (continued)
No. Name Def Values/Descriptions Notes