Peco TA170 Manual Download Page 2

© COPYRIGHT 2007 PECO, INC.  ALL RIGHTS RESERVED. 

 

 

 

 

 

P/N 69287  3220-2084  REV 0  PAGE 2

                       

Jp3 Jumper selection – HVac setback systems

:  The JP3 jumper 

allows the T170 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.

   

JP4

Selection

Pipe

Sensor

Water

Temp

Aqua

Stat

Main Output

(Blue Wire)

Secondary

Output

(Red Wire)

COLD

Open

Cooling ONLY

Disabled

2-Pipe

JP4-ON

HOT

Closed

Heating ONLY

Disabled

COLD

Open

Cooling

Heating

4-Pipe

JP4-OFF

HOT

Closed

Heating ONLY

Disabled

* Fan will not cycle on for disabled modes.

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 

T170 will display the service wrench and disable all outputs

White/Yellow

White/Violet

Remote Probe

Circuit Common

Normally

Closed

Condensate

Switch

Remote Probe Installation

White/Yellow

White/Violet

Remote Probe

Circuit Common

Normally

Open

Condensate

Switch

Local Sensor Installation

        

!

Mounting Thermostat  

Thermostat mounts to a 4” x 4” box with a 2” x 4” mud ring.  

Adapter wall plates are available if needed.

Pull wires through the hole of the thermostat base.

Mount thermostat base to the wall using the enclosed mounting 

screws.  Tighten screws evenly but do not over tighten.

Verify that the circuit board is firmly snapped into the cover and 

has not been dislodged during handling.

Match and connect equipment wire thermostat using the appropri-

ate wiring schematic as shown at the bottom of the page on the 

left-hand side.

Wire nut all unused wires or terminate properly according to local 

building codes.

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.

Turn on power to equipment.         

          

CAUTION

2x4 Mud Ring

T170 Base

T170 Cover Assembly

All wiring connections must be made

inside the electric box or the T170

maybedamaged.

Cover Locking Snaps

(Both Sides)

System Check-out

After wiring and installation is complete, energize the system.  

Set fan to ON.  Select each fan speed (TA170 Models) to verify 

operation.

Set the System button to AUTO, or available selection.

Using the UP arrow, adjust temperature more than 5°F above the 

room temperature to cycle on heating.

Using the DOWN arrow adjust the temperature to 5°F below room 

temperature to cycle on cooling.

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

To enter the Service Menu press the UP and DOWN arrows simultane

-

ously for five (5) seconds.  The current display icon will be turned off.

Service menu numbers 1 through 17 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.

1.

2.

3.

4.

5.

6.

7.

8.

1.

2.

3.

4.

5.

Black

Yellow

White/Black

White/Blue

White/Gray

Blue

Red

White/Brown

White/Red

White/Orange

Brown

L1

L2 / NEUTRAL

Setback Input/ Door Switch

Pipe Sensor

Occupancy Detector

Cool

(

Main Output)

Heat

(Secondary Output)

Fan Low

Fan Medium

Fan High

Outside Air

TH

E

R

M

O

S

TA

T

C

O

N

N

EC

TI

O

N

S

LO

W

VO

LT

AG

E

WIRING DIAGRAM

LI

N

E

VO

LT

AG

E

White/Yellow

White/Violet

Remote Probe

Circuit Common

OUTPUTS

See Ratings

Accessories

Available

from

PECO

Summary of Contents for TA170

Page 1: ...ce box with a 2 x 4 horizontal mud ring Physical Dimensions 4 4 H x 5 8 W x 1 1 D Agency Approvals UL UL Canada Electrical Ratings see table below Switching Inductive Voltage Rating FLA LRA Resistive Amps Pilot Duty 24 VAC NA NA NA 24 VA 120 VAC 5 8 34 8 6 0 125 VA 240 VAC 2 9 17 4 5 0 125 VA 277 VAC 2 4 14 4 4 2 125 VA COMBINED LOAD CURRENT NOT TO EXCEED 20 AMPS MOUNT ONLY TO A GROUNDED METALLIC ...

Page 2: ...odged during handling Match and connect equipment wire thermostat using the appropri ate wiring schematic as shown at the bottom of the page on the left hand side Wire nut all unused wires or terminate properly according to local building codes 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 t...

Page 3: ...display on the thermostat 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 5 C The lowest selectable temperature Set Point value 5 Range High 50 90 F 10 32 C 90 F 1 F 5 C The highest selectable temperature Set Point value 6 Setback Low OFF 50 82 F 11 27 C 55 ...

Page 4: ...mbiguous all thermostat outputs are disabled for 1 hour After 1 hour the purge cycle resumes at step 1 HVAC Setback Systems Setback Operation Remove JP3 This is a low level input that is normally open When switch is closed the T170 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...

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