Peco TB158 User manual

hREAD THESE INSTRUCTIONS CAREFULLY BEFORE
ATTEMPTING TO INSTALL, OPERATE OR SERVICE
THIS THERMOSTAT.
hFailure to observe safety information and comply with
instructions could result in PERSONAL INJURY, DEATH
AND/OR PROPERTY DAMAGE.
hTo avoid electrical shock or damage to equipment,
disconnect power before installing or servicing.
hTo avoid potential fire and/ or explosion do not use in
potentially flammable or explosive atmospheres.
hRetain 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.
WARNING
hUse copper wire only, insulate or wire nut all un-used
leads.
hCare should be used to avoid electrostatic discharge to
the microprocessor.
hThis unit has configuration jumpers. You may need to re-
configure this thermostat for your application.
See page 2.
© COPYRIGHT 2005 PECO, INC. ALL RIGHTS RESERVED P/N 68838 3220-1472 Rev 0 Page 1
INSTALLATION INSTRUCTIONS
1. Install the T158 with the two furnished mounting screws to a
standard 4-11/16" x 2-1/8" square device box with a 2" x 4"
adapter ring.
2. For wall installations, mount the thermostat on an inside wall
approximately 5 feet above the floor. The location should
provide circulation at average room temperature. Avoid direct
sunlight or sources of hot or cold air in the room or wall.
3. Remove the cover. Mount thermostat base assembly to the
outlet box using the screws provided, tighten the screws evenly
but do not over tighten. Connect wires as shown in the
appropriate wiring diagram for your thermostat style.
4. To use a remote sensor on units with local sensing capability,
remove jumper JP-1 to disable local sensing. Failure to remove
JP-1 will cause improper operation of the thermostat.
5. Remove the LCD plastic protective film. Reinstall the cover
assembly. Install the cover locking screw provided in the hole at
the left side of the control enclosure to complete the installation.
6. Checkout: After wiring and installation are complete, energize
the system and check the operation. Adjust the thermostat as
necessary to complete at least one cycle. Be sure the
thermostat and all other equipment are functioning correctly.
TB158
MICROPROCESSOR THERMOSTAT
On/Off and 3-Wire Controller
CAUTION
LOW VOLTAGE
CONNECTIONS
LINE VOLTAGE
CONNECTIONS
WIRING DIAGRAM FOR ON/OFF OUTPUT
CONFIGURATION
WIRING DIAGRAM FOR 3-WIRE VALVE
CONFIGURATION
LOW VOLTAGE
CONNECTIONS
LINE VOLTAGE
CONNECTIONS
L1 (HOT)
LO
MED FAN L2 OR NEUTRAL
24 VAC 1
24 VAC 2
SETBACK INPUT
MAIN 1 OPEN
SEC 1 OPEN
MAIN 2 CLOSE
SEC 2 CLOSE
REMOTE PROBE
PIPE SENSOR
L1 (HOT)
LO
MED
HIGH
OR SINGLE SPEED FAN
24 VAC 1
24 VAC 2
SETBACK INPUT
FAN
REMOTE PROBE
PIPE SENSOR
FAN L2 OR NEUTRAL
24 VAC
XFMR
24 VAC
XFMR
MAIN 1
SEC 1
HEAT 2
MAIN
SECONDARY
OUTSIDE AIR
DAMPER OUTPUT
MAIN 1
OUTPUT
SECONDARY
1 OUTPUT
DEMAND
OUTPUT
2ND STAGE
HEAT
OUTSIDE AIR
DAMPER OUTPUT
VOLTAGE
RATING
FAN AND SYSTEM SWITCHES
INDUCTIVE
FLA LRA
RESISTIVE
AMPS
PILOT
DUTY
THERMOSTATIC
SWITCHING
(Pilot Duty)
24 VAC NA NA NA 24 VA 10 VA
120 VAC 5.8 34.8 6.0 125 VA N.A.
240 VAC 2.9 17.4 5.0 125 VA N.A.
277 VAC 2.4 14.4 4.2 125 VA N.A.
10
11
12
13
14
15
16
17
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
1
2
3
4
5
6
7
HIGH
OR SINGLE SPEED FAN

© COPYRIGHT 2005 PECO, INC. ALL RIGHTS RESERVED P/N 68838 3220-1473 Rev 0 Page 2
THERMOSTAT OPERATION
These thermostats are designed to control On-Off, N.O. and N.C.
valves, relays and Erie® three wire floating valves. These units may
include a fan switch with one or more fan speed selections.
MODE BUTTON OPERATION
OFF All thermostat outputs are off, fan is still operational if
connected to manual fan speed switch.
AUTO The thermostat automatically selects heating or cooling
mode depending on the set point and room temperature. The
appropriate HEAT or COOLindicator is enabled in addition to AUTO. A
3°F dead-band is provided to prevent short cycling between heating
and cooling modes. After change-over the control points automatically
shift so that the heating off point or the cooling off point equals the set
point temperature.
COOL The thermostat operates as a cooling only thermostat. The
heating outputs are disabled.
HEAT The thermostat operates as a heating only thermostat. The
cooling outputs are disabled.
If constructed without a mode button, the thermostat operates in Auto
mode, subject to configuration of the 2/4 pipe jumper and pipe sensor
input.
FAN SPEED SWITCH OPERATION
Fan speed is determined by manual selection from fan switch OFF to
HIGH, MEDIUM and/ or LOW. In units with the Cycling Fan Option
(demand output), the Fan operation (CYCLING vs. CONTINUOUS) is
determined by application connections. In OFF position all outputs are
off and display blank.
UP/ DOWN ARROW OPERATION
A first touch of either arrow will display the set point (a single set point is
employed for both heating and cooling). Continued pressure on either
arrow will scroll the set point to new values. After three seconds with no
pressure on either arrow, the selected set point becomes effective and
the display of the room temperature resumes.
SETBACK OPERATION
Connection of the Setback Input to 24 VAC 1 will force the control into
un-occupied mode (see wiring diagram). Pressing an arrow key or the
mode button on the thermostat cover will disable the setback input for
one hour.
PIPE SENSOR OPERATION
If cold water is detected, the system will operate in summer mode and
the Main output will be cooling. If hot water is detected, the system will
operate in winter mode, the Main output will be heating and First Stage
Secondary Output will be disabled. In the case of an ambiguous
reading, neither hot or cold, the thermostat will initiate a purge cycle.
THREE WIRE FLOATING VALVE OPERATION
Open and Close outputs are used to position the valve. Stroke time is
factory set at two minutes. Outputs are off after reaching full on or off
position. Valves are periodically reset for accuracy.
OUTSIDE AIR DAMPER OPERATION
This output is ON any time the control is turned ON.
ON - OFF
Three Wire
Floating Operation Off With Demand On With Demand
OUTPUT
MAIN 1
(Terminal 10)
* Operation is determined by configuration. See Dip Switch Configuration Table.
Powers Main
Valve Open
Off at Temperature
Demand
On at Temperature
Demand
MAIN 2
(Terminal 12)
Powers Main
Valve Closed
Cycles On
With Demand
Cycles On
With Demand
SECONDARY 1
(Terminal 11)
Powers Secondary
Valve Open
Summer: Off With
Heat Demand
Winter: Disabled
SECONDARY 2
(Terminal 13)
Powers Secondary
Valve Closed
On at Second Stage
Heating Demand
On at Second Stage
Heating Demand
DIP SWITCH CONFIGURATION
NOTE: Thermostat power must be cycled for changes in dip switch configuration
to take effect.
112233445566
SECONDARY 1 OFF WITH DEMAND
MAIN 1 OFF WITH DEMAND
CENTIGRADE DISPLAY
SECONDARY 3-WIRE FLOATING
MAIN 3-WIRE FLOATING
85 F/ 60 F SETBACK
SECONDARY 1 ON WITH DEMAND
MAIN 1 ON WITH DEMAND
FAHRENHEIT DISPLAY
SECONDARY ON-OFF
MAIN ON OFF
90 F/ 50 F SETBACK
ON
Example: This Dip Switch Is Configured For On With Demand, °F Display, On-
Off Operation And 90/50 F Setback.
AUTO JP4
JP1
12 3 456
DIP SWITCH
ON
1 2 3 4 5 6 7
10 11 12 13 15 16 17
JP4
JP1
Jumper
Designation
2 Pipe System*
Local Sensing
Jumper Installed
ON
4 Pipe System
Remote Sensing
Jumper Removed
OFF
CIRCUIT BOARD JUMPER CONFIGURATION
* Disables the Secondary 1 Output
Application Notes
1. When no pipe sensor is used the main output controls
cooling and the secondary output controls heating.
2. The pipe sensor should be mounted on the main coil input
for water system operation and in the main duct system for
forced air operation.
3. Set point and operating mode are retained on power loss.
4. When using either a remote probe or pipe sensor, run
wiring away from any electrical motors or power wiring.
5. For three-wire floating applications you must configure
stroke time. Factory default is 2-minutes.
Power-Up Operating Sequence
FFor ON-OFF configuration, this thermostat will go directly to
normal operation.
FFor three-wire floating configuration (TB158),thermostat will
operate as follows:
1. Close both the main and secondary valves for a period of
three minutes (default) by applying power to the Main 2 and
Secondary 2 outputs (stroke time can be changed).
2. At the end of three minutes, the TB158 will stop closing the
valves by removing power from the Main 2 and Secondary 2
outputs.
3. The TB158 will go to normal operation based on demand,
system configuration (summer/winter, 2 or 4 pipe) and mode
button selection.
Summer: On With
Heat Demand
Winter: Disabled
MAIN AND SECONDARY OUTPUT OPERATION
Service Menu:
Access: Press UP and DOWN arrows for 5 seconds.
Menu Selection: Select 1 to 5 by pressing the mode button
or by pressing the UP and DOWN arrows simultaneously.
Adjust Value: Use UP or DOWN arrow.
For more information see: www.pecomanufacturing.com
Item # Function Range Default
1Zone Temp Offset -5.1F to 5.1F 0F
2 Valve Stroke Time 30 sec. To 5 min. 120 sec.
3 Fan Delay to OFF 0 to 10 Minutes 0 Sec.
4 Compressor
Minimum Off Time
30 Sec. To 10 min. 120 Sec.
5 Purge Cycle 0 = Time Based
1 = Temperature Based
1