TA/TB180 THERMOSTAT
▲WARNING
!
▲
!
• READ THESE INSTRUCTIONS CAREFULLY BEFORE
ATTEMPTING TO INSTALL, OPERATE OR SERVICE THIS
THERMOSTAT.
• Failure to observe safety information and comply with instructions could result in PERSONAL INJURY, DEATH AND/OR
PROPERTY DAMAGE.
• To avoid electrical shock or damage to equipment, disconnect
power before installing or servicing and use only wiring with
insulation rated for full thermostat operating voltage.
• Before installing this control, the Voltage Selection Switch must
be placed in the correct position. See instructions.
• To avoid potential fire and/or explosion do not use in potentially
flammable or explosive atmospheres.
• Retain these instructions for future reference. This product,
when installed, will be part of an engineered system whose
specifications and performance characteristics are not designed
or controlled by PECO. You must review your application and
national and local codes to assure that your installation will be
functional and safe.
CAUTION
▲
!
• Use copper wire only, insulate or wire nut all unused leads.
• Care should be used to avoid electrostatic discharge to the T180
thermostat.
• This unit has configuration jumpers. You may need to reconfigure
this thermostat for your application.
applications and features
For 2 or 4 Pipe Fan Coil and On/Off Control Applications
• 7 Day, 4 Event Programmability
• System Selection: Off-Heat-Cool-Auto-Setback
• 6 Outputs: 1H, 1C, Up to 3 Fan, OA Damper
• Fan Control: 1-3 Speeds
Cycling (Auto) or Continuous (On)
Automatic Fan Speed Staging (TB180 models only)
Connections for:
• Fan Coil Pipe Sensor
• Remote Temperature Probe
• Occupancy Control
• Door Switch or Setback
• Condensate Overflow
Specifications
Temperature Set Point Range
Differential
Memory – Back-Up
Mounting
SYSTEM
FAN
Physical Dimensions
4.4”H x 5.8”W x 1.1”D
Agency Approvals
UL, UL Canada
Electrical Ratings (see table below)
RATINGS
RES
PILOT
VOLTAGE
HP
AMPS
DUTY
FLA
LRA
24 VAC
NA
NA
NA
24 VA
NA
120 VAC
5.8
34.8
6.0
125 VA
1/4
240 VAC
2.9
17.4
5.0
125 VA
1/4
277 VAC
2.4
14.4
4.2
125 VA
1/4
COMBINED LOAD CURRENT NOT TO EXCEED 20 AMPS
INSTALLATION
New Installations
The thermostat should be used indoors only. It should be mounted on
an inner wall in a location with freely circulating air, and where it will be
responsive to changes in room temperature. Avoid mounting near heat
generating appliances (i.e. TV, heater, refrigerator), or in direct sunlight.
Remove Old Thermostat
1. Turn off power to thermostat at main fuse or circuit breaker box.
Ensure that ALL power is disconnected. To prevent electrical
shock and /or equipment damage, disconnect electrical
power to the system at the main fuse or circuit breaker until
installation is complete.
2. Remove the front cover of old thermostat. With wires still attached,
remove wall plate from the wall. If the old thermostat has a wall
mounting plate, remove the thermostat and the wall mounting plate
as an assembly.
3. Before removing wires from old thermostat, label each wire
with the terminal designation from which it was attached.
4. Disconnect the wires from the old thermostat one at a time. Do not
let wires fall back into the wall.
Jumper and Circuit Board Selections
Voltage Selection Switch: This switch must be placed in the appropriate
position prior to application of power.
• 24V
= 24 VAC
• 110-277 V = 120, 240 or 277 VAC
PROGRAM
50 to 90°F / 10 to 32°C
1°
EEPROM, No batteries required, JP1 Jumper Selection – Remote Temperature Sensor:
Stores settings for unlimited time
• Local Sensing – Install JP1
Installs on standard 4” x 4”
• Remote Sensing – Remove JP1 – Accessory sensors are available
device box with a 2” x 4”
in standard 60” lengths but can be extended to meet application
horizontal mud ring
requirements.
© COPYRIGHT 2008 PECO, INC. ALL RIGHTS RESERVED.
P/N 69387 3220-2124 REV 0 PAGE 1
▲
!
JP3 Jumper Selection – HVAC Setback Systems: The JP3 jumper
allows the T180 to be configured for Setback, Occupancy Detection or
Door Switch Only Occupancy Operations. For further descriptions of
these conditions please see the Technical/Application Section.
• Setback Operation - Remove JP3
• Occupancy Detection - Install JP3
• Door Switch Only - Install JP3 ▲
JP4 Jumper Selection – 2 or 4 Pipe Operation: Connection of a pipe
sensor will change the operation of the outputs as shown in the table
below. (See Technical Notes for further information on Pipe Sensor
Operation)
• 2-Pipe Operation - Install JP4 - The thermostat will permanently
disable the Secondary Output and disables system and fan invalid
modes.
• 4-Pipe Operation - Remove JP4 - Both the Main Output (COOL)
and Secondary Output (HEAT) will be available.
Pipe
Aqua
Main Output
Sensor
Water
Stat
(Blue Wire)
Temp
2-Pipe
COLD
Open
Cooling ONLY
JP4-ON
HOT
Closed
Heating ONLY
4-Pipe
COLD
Open
Cooling
JP4-OFF
HOT
Closed
Heating ONLY
* Fan will not cycle on for disabled modes.
JP4
Selection
Secondary
Output
(Red Wire)
Disabled
Disabled
Heating
Disabled
CAUTION
All wiring connections must be made
inside the electric box or the T180
maybe damaged.
Condensate Overflow Interrupt - The remote probe input can be used
with a condensate overflow interrupt switch (CO), either in conjunction
with a remote probe (normally closed CO switch) or with local sensing
(normally open CO switch). When the condensate switch activates, the
T180 will display the service wrench and disable all outputs
Local Sensor Installation
Remote Probe
White/Yellow
THERMOSTAT CONNECTIONS
LOW VOLTAGE
White/Black
Remote Probe
White/Yellow
Setback Input/ Door Switch
Remote Probe
Circuit Common
White/Violet
Pipe Sensor
White/Blue
L2 / NEUTRAL
Blue
Cool
( Main Output)
Red
(Secondary Output)
White/Red
White/Orange
Brown
Black
Fan Medium
Note: If the thermostat is set to utilize a time-based purge cycle (Service
menu 16), the thermostat will conduct a 3-min purge on initial start-up if a
pipe sensor is connected.
THERMOSTAT CONFIGURATION / SERVICE MENU
Heat
Fan Low
T180 Cover Assembly
System Check-out
1. After wiring and installation is complete, energize the system.
2. Set fan to ON. Select each fan speed (TA180 Models) to verify
operation.
3. Set the System button to AUTO, or available selection.
4. Using the UP arrow, adjust temperature more than 5°F above the
Accessories
room temperature to cycle on heating.
Available
5.
Using the DOWN arrow adjust the temperature to 5°F below room
from
temperature to cycle on cooling.
PECO
Occupancy Detector
Yellow
White/Brown
Cover Locking Snaps
(Both Sides)
T180 Base
Normally
Closed
Condensate
Switch
Circuit Common
White/Violet
White/Yellow
White/Gray
2x4 Mud Ring
Remote Probe Installation
Normally
Open
Condensate
Switch
Circuit Common
White/Violet
LINE VOLTAGE
!
Mounting Thermostat
1. Thermostat mounts to a 4” x 4” box with a 2” x 4” mud ring. Adapter
wall plates are available if needed.
2. Pull wires through the hole of the thermostat base.
3. Mount thermostat base to the wall using the enclosed mounting
screws. Tighten screws evenly but do not over tighten.
4. Verify that the circuit board is firmly snapped into the cover and has
not been dislodged during handling.
5. Match and connect equipment wire thermostat using the appropriate
wiring schematic as shown at the bottom of the page on the lefthand side.
6. Wire nut all unused wires or terminate properly according to local
building codes.
7. Mount the base to the mud ring and install the cover assembly.
Firmly press cover to engage the cover locking snaps. Should the
cover need to be removed in the future, use a flat edged tool to
put pressure on the base sides. This will release the four side
latches.
8. Turn on power to equipment.
OUTPUTS
See Ratings
Fan High
Outside Air
L1
To enter the Service Menu press the UP and DOWN arrows simultaneously
for five (5) seconds. The current display icon will be turned off.
Service menu numbers 1 through 18 are available. Push the SYSTEM
button to move to the next Service Menu number. The UP and DOWN
arrow keys will scroll through your range of options for each feature. The
selection that is flashing is the one you are selecting. All changes to
the Service Menu are automatically saved when the system times out.
Please refer to the service menu table on page three.
© COPYRIGHT 2008 PECO, INC. ALL RIGHTS RESERVED.
P/N 69387 3220-2124 REV 0 PAGE 2
MENU
FEATURE
RANGE
STD. MODEL
DEFAULT
INCREMENT
DESCRIPTION / COMMENTS
1
F/C
°F or °C
°F
°F
2
Default Display
Zone Temp
(Disabled)
Zone Temp
-
3
Fan Off Delay
0-255 Seconds
0
1 Second
The amount of time (in seconds) the lowest available fan speed will run after the thermostat outputs are disabled.
4
Range Low
50-90°F, 10-32°C
50°F
1°F, 0.5°C
The lowest selectable temperature Set-Point value.
5
Range High
50-90°F, 10-32°C
90°F
1°F, 0.5°C
The highest selectable temperature Set-Point value.
6
Setback Low
OFF
50-82°F, 11-27°C
55°F
1°F, 0.5°C
The temperature Set-Point value you want the thermostat to Heat to when the T180 is in the Setback mode.
7
Setback High
OFF
58-90°F, 15-31°C
90°F
1°F, 0.5°C
The temperature Set-Point value you want the thermostat to Cool to when the T180 is in the Setback mode.
8
Zone Temp Offset
+/- 9°F, +/- 4.5°C
0°F
1°F, 0.5°C
Zone Temperature offset adjusts the sensed Zone Temperature reading from the A to D converter, allowing
calibration in the field.
9
Keypad Lock
ON1
ON2
OFF
OFF
-
Allows you to choose what the occupant can access. The Service Menu is still available if Key Pad Lock Out is ON.
ON1 = Disables Sys/FAN/Status
ON2 = Disables all buttons
OFF = No Key Pad Lock Out
10
Fan Mode
FAN ON
FAN AUTO
FAN ON or AUTO
ON or AUTO
-
ON = Fan is always on, regardless of demand.
AUTO = Fan is only on with heating or cooling demand.
ON or AUTO = User can choose either selection.
11
Fan Speeds
1 - High
2 - Low and High
3 - Low, Med, High
3
-
1 Speed = Fan High
2 Speed = Fan Low and Fan High
3 Speed = Fan Low, Medium, and High
12
System Mode
Off, Auto
Off, Heat, Cool, Auto
Off, Heat, Cool
Heat, Cool, Auto
Off, Heat, Cool,
Auto
-
Allows you to determine what system modes the occupant can select.
13
Controlled Off or
Off Override
ON - Enable
OFF - Disable
OFF
-
When ON, the unit will control to the Setback Set=Points and override the user mode setting of OFF if the room
temperature is equal to or above the Cool Setback Set-Point or equal to or below the Heat Setback Set-Point.
14
Front Panel
Setback Control
ON - Enable
OFF - Disable
OFF
-
When ON, Setback is shown as an available system mode selection. If Setback mode is selected, the thermostat
will control to the current Setback Heat and Setback Cool Set-Points.
15
Cycled Outside Air
(OA) Damper
ON - Continuous
OFF - Cycles
OFF
Cycles
-
OFF - Cycles = OA output cycles with active heat or cool demand.
ON - Continuous = OA output is active anytime the thermostat is out of the OFF mode.
16
Temp Based
Purge Cycle
ON - Temp Based
OFF - Time Based
OFF
Time Based
-
Determines if the Purge Cycle will be Temperature or Time Based.
17
Dead Band
Adjustment
3-10°F, 1.5-5°C
3°F
1°F, 0.5°C
18
Factory Default
Reset
ON - Enable
OFF - Disable
OFF
-
Determines temperature displays in Fahrenheit or Celsius
(Disabled)
A changeover deadband value prevents short cycling between Heating and Cooling modes. The value is adjustable
to meet various HVAC system requirements.
When factory default is desired, select DFLT.
USER OPERATION
• All changes are saved when the thermostat times out.
• Fan and System user selectable options are determined in the
Service Menu.
Room Temp. and Adjustable Set Point (desired) Temp.: Unless
adjusted in the Service Menu, the thermostat displays the current room
(Zone) temperature. To adjust the desired room temperature (set point
value), press either the UP or DOWN arrow key.
System Button Operation: Continue to press the System button to
change the current (flashing) system mode.
• OFF: All thermostat outputs are disabled.
• HEAT: The thermostat operates as a Heating only thermostat.
• COOL: The thermostat operates as a Cooling only thermostat.
• AUTO: The thermostat automatically selects the appropriate Heat
or Cool mode depending upon the Set Point (Desired Temp) and
Zone Temperature (Actual Temp).
• SETBACK: If enabled in Service Menu 14, SETBACK will display
as an available mode selection. This mode is an energy saving
feature that minimizes heating and cooling when the room is not
occupied. The thermostat will control to the SETBACK Heat
and Cool Set Points, rather than the standard Set Points. When
a demand for heating and cooling exists, the fan will run at the
lowest speed. When in SETBACK, the display will show the room
temperature along with the SETBACK icon. Key presses will have
no effect on the Setback operation except for the System Switch
Selection button, which allows the user to exit this mode.
Fan Button Operation: Continue to press the Fan button to change the
current (flashing) fan mode.
• ON: Fan is on continuously, even if no demand for heating or
cooling exists.
• AUTO: Fan cycles with active demand for heating and cooling.
TECHNICAL / APPLICATION NOTES
Pipe Sensor Operation: A pipe sensor can be connected when the
thermostat is configured for either 2-pipe or 4-pipe fan coil operation (see
JP4 jumper configuration). The Pipe sensor is used to determine the
water temperature in the Main Coil. The Pipe Sensor should be mounted
on the Main Coil supply and wrapped with insulating material.
Pipe Sensor Input: 10K PECO Remote Probe or a standard On-Off Aqua-
© COPYRIGHT 2008 PECO, INC. ALL RIGHTS RESERVED.
P/N 69387 3220-2124 REV 0 PAGE 3
stat can be used for summer/winter changeover. ON (closed) is winter
heating mode and OFF (open) is summer cooling mode.
is open and closed when the door is closed. This system requires
both an Occupancy Sensor and a Door Switch.
Purge Cycle Operation: With a pipe sensor connected, this thermostat
will initiate a purge cycle if the sensed water temperature is ambiguous
(not adequately hot or cold). The purge cycle algorithm can be either
temperature or time based, depending on the configuration of Service
Menu 16.
Operation From an Occupied Mode:
1. The T180 operates normally and looks for a door close. A door
close signal initiates an occupancy status detection.
2. If occupancy is detected, the T180 will maintain normal HVAC
control. It then waits for a door open signal before determining
occupancy again.
3. If no occupancy signal is detected within 2 minutes, the T180
changes to unoccupied mode and controls at setback temperature
values.
Temperature-Based Purge:
• When an Ambiguous mode is detected and a demand exists, a 3
minute purge timer begins and the Main Output is opened.
• After the 3 minute purge cycle, the thermostat checks again to see
if the water temperature is more than 15°F from set point, or above
80°F or below 60°F.
• If Winter or Summer mode is determined, normal HVAC operation
occurs. If still ambiguous, the thermostat checks to see if the COIL
temperature is below 60°F or above 80°.
Coil < 60°F = Summer Mode.
Coil > 80°F = Winter mode.
• Purge Cycle is repeated until a non-ambiguous condition is
sensed.
NOTE: If at any time the demand goes away, the thermostat will abort
the purge cycle.
Time-Based Purge: (Default)
• The time-based purge cycle will start a 3-min purge cycle and
enable the Main Output if any of the following conditions occur:
transition from OFF to AUTO mode, Reset event, power cycle, and/
or 1-hour timer expires.
• After the 3 min purge cycle, a pipe sensor reading says:
Pipe is 15°F+ below the zone temp = Summer mode
Pipe is 15°F+ above the zone temp = Winter mode
Pipe is within 15°F of zone temp = still Ambiguous
• If a Winter or Summer mode is determined, the appropriate
heating/cooling occurs. The thermostat will purge and check pipe
temperatures again after 1-hour.
• If step 2 is still ambiguous, all thermostat outputs are disabled for
1 hour.
• After 1 hour, the purge cycle resumes at step 1.
Operation From an Unoccupied Mode:
1. In an Unoccupied State, the T180 sets heating and cooling set
points to setback values, as determined in the service menu. In
this mode, the fan is automatically set to cycle with demand.
2. The T180 will continually monitor the room for occupancy.
3. Any occupancy detection, including door open, will set the operation
to occupied mode.
In either mode, if the door is left open for more than 2 minutes the T180
will disable the HVAC system. A one-time ten minute override can be
initiated by pressing any thermostat key pad.
Door Switch Only Operation - Install JP3. A stand alone door or window
switch can be connected to the T180 to disable the HVAC system (outputs)
if a door or window is left open for more than 2 minutes. A one-time ten
minute override can be initiated by pressing any thermostat key pad.
HVAC Setback Systems
Setback Operation - Remove JP3
This is a low level input that is normally open. When switch is closed, the
T180 heating and cooling setback limits are used as temperature control
points. Fan operation in setback is cycled with demand. Pressing any
button will override setback for 1 hour. Setback will override any user
setting unless control is turned to OFF.
Intelligent Occupancy Sensors like the SD200-001 and SD200-002 can be
used with this input to set the HVAC system to control at setback limits.
Occupancy Operation – Install JP3
The T180 can be used with PECO S200 series occupancy detection
equipment. The occupancy and switch inputs are designed to connect to
the SB200 slave sensor and SE200 door switch.
• The Occupancy Sensor is a low-level switch that is open when
there is occupancy and closed when unoccupied.
• The Door Switch is a low-level switch that is open when the door
© COPYRIGHT 2008 PECO, INC. ALL RIGHTS RESERVED.
P/N 69387 3220-2124 REV 0 PAGE 4
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