Pecoware TC170 Manuale Utente

TC170 THERMOSTAT

READ THESE INSTRUCTIONS CAREFULLY BEFORE 

ATTEMPTING TO INSTALL, OPERATE OR SERVICE THIS 

THERMOSTAT.

Failure to observe safety information and comply with instruc-

tions 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. 

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WARNING

CAUTION

Use copper wire only, insulate or wire nut all unused leads.

Care should be used to avoid electrostatic discharge to the T170 

thermostat.

This unit has configuration jumpers.  You may need to reconfigure 

this thermostat for your application. See page 3.  

Thermostat mounts to a 4x4 box with a 2x4 mud ring. 

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1. This thermostat is a 24 VAC only control. Leave the Voltage Selec-

tion Switch in the 24 VAC position for proper operation. Failure to 

select the correct voltage will result in thermostat malfunction or perma-

nent thermostat damage.

2. Connect wires using the wiring diagram. Wire nut off all unused wires. 

All connections must be located in the outlet box.  

3. Install the T170 base with the two furnished mounting screws to 

a standard 4 x 4 x 2-1/8” square device box with a 2” x 4” mud ring 

mounted horizontally. Tighten the screws evenly but do not over tighten. 

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 with a remote probe installed.

5. Verify that the circuit board is firmly snapped into the cover and has 

not been dislodged during handling. 

6. Install the cover assembly.  Press firmly to engage the cover locking 

snaps.

7. Checkout: After wiring and installation is complete, energize the 

system.  Set fan to ON. Set the system button to AUTO, or available 

selection. Using the UP arrow, adjust temperature above the ambient 

temperature to cycle heating stage(s) on. Using the DOWN arrow adjust 

the temperature  below ambient temperature to cycle cooling stage(s) 

on.  

OFF 

All thermostat outputs are off.  

AUTO  The thermostat automatically selects heating or cooling mode 

depending upon the set point and room temperature. The ap-

propriate HEAT or COOL icon are illuminated if demand exists.  

A 3°F dead-band is provided to prevent short cycling between 

heating and cooling modes. After changeover, the control point 

automatically shifts so that the control off point equals the set 

point temperature.

COOL  The thermostat operates as a cooling only thermostat. 

HEAT  The thermostat operates as a heating only thermostat. 

Up/Down arrows increased or decreased temperature. 

In ON the fan output is continuous. In AUTO the output cycles with 

demand.  Some models are available with Controlled Off and or Staged 

Fan.

This button toggles from Fahrenheit to Celsius. 

Some models have a Speed button instead of a F/C button. Fan speed 

is determined by manual selection of HI or LO. Holding this button in 

for 5 seconds will toggle the displayed temperature from Fahrenheit to 

Celsius.                         

© COPYRIGHT 2008 PECO, INC.  ALL RIGHTS RESERVED. 

 

 

 

 

 

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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)