Peco TA155 - User Manual

1.InstalltheT155withthetwofurnishedmountingscrewstoa
standard
2”x4”electricalbox,4-11/16”x2-1/8”squaredevicebox
with
a2”x4”adapterringortoa4”x4”boxwithaccessoryadapter
plate.
2.For
wallinstallations,mountthethermostatonaninsidewall
approximately
5feetabovetheoor.
The
locationshouldprovide
circulation
ataverageroomtemperature.
A
voiddirectsunlightor
sources
ofhotorcoldairintheroomorwall.
3.Removetheknobandthenthecover.Mountthermostatbase
assembly
totheoutletboxusingthescrewsprovided,tightenthe
screws
evenlybutdonotovertighten.Makewiringconnectionsas
noted.
4.T
ousearemotesensor,removejumperJP-1todisablelocal
sensing.
FailuretoremoveJP-1whenusingaremotesensorwill
cause
improperoperationofthethermostat.Someunitsdonothave
remotesensingcapability.SeeApplicationNotes.
5.Reinstallthecoverassembly.Installcoverlockingscrewprovided.
Reinstall
theknob.
© Copyright 2010 PECO, Inc. All Rights Reserved P/N 68798 3220-1449 Rev2 Page 1
Installation Instructions
TA155/TB155


•READTHESEINSTRUCTIONSCAREFULLYBEFOREATTEMPTINGTO
INST
ALL,OPERATEORSERVICE
THIS

THERMOST
AT.
•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.
•Toavoidelectricshockordamagetoequipment,useonlywiringwithinsula-
tionratedforfullthermostatoperatingvoltage.
•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,Inc.
Y
oumust
review
yourapplicationandnationalandlocalcodestoassurethatyour
installation
willbefunctionalandsafe.
TemperatureRange:50°F-90°F(10°C-32°C)
TA155:
A
HEAT-OFF-COOL

systemswitchmanuallyselectsheating
or
coolingmode.IntheHEAT

position,onlytheheatoutputcycles
with
demand.IntheCOOL

position,onlythecooloutputcycleswith
demand.IntheOFFposition,heatingandcoolingoutputsareoff.Units
with
atwopositionsystemswitchorwithoutasystemswitchmustuse
a
loadtransferswitchwhenbothheatingandcoolingoutputsareused.
This
preventscontrolfailureandequipmentdamagecausedbydirect
cycling
betweenloads.
TB155:
An
ON-OFFsystemswitchenablesauto-changeoverofheating
and
coolingmodes.IntheONpositionthethermostatactivatesheating
or
coolingoutputsdependantupontherelationshipbetweensetpoint
and
ambienttemperature.Heatontocoolondeadbandis4°F.In
theOFFposition,heatingandcoolingoutputsareoff.Unitswithout
a
systemswitchcyclebetweenheatingandcoolingwitha4°Fdead
band.
F
AN:Someunitshaveaswitchformanualselectionoffanspeed.On
theseunitsfanoperationiseitherinternallywiredforfancontinuous
operation
orisdependantuponconnectiontothefansupplyinput.
When
internallywiredforfancontinuousoperation,thefanwillbe
of
fwhenthesystemswitchisoff.Whendependantuponexternal
connections
thefanmaynotbeoffwiththesystemswitchintheoff
position.Thefansupplyinputisswitchedtofanspeedoutputs(HI-
MED
-LO).
SWITCHEDPOWER:L1powerisswitchedtothisoutputanytimethe
system
switchisoutoftheOFFposition.

Whenremovingandre-installingtheT-155
knob,
caremustbetaken.
•Align
arrowto70°Fontheknob(22C)or
midrange
whenremovingtheknob.
•Reinstallknobbyaligningarrowto70°F
(22C)ormidrange.
•Do
notforceit.Whenproperlyaligned,the
knob
willslipintoposition.
Align arrow to 70°F
on the knob (22C)
•UseCopperwire
only
,insulateorwire
nut
allunusedleads.
•Anywiring,including
the
remoteprobe,
maycarrythefull
operating
voltageof
the
thermostat.

▲


▲


▲


Summary

Installation and Setup

Installation Safety Precautions

Use copper wire only, insulate or wire nut all unused leads. Any wiring may carry full operating voltage.

Knob Removal and Replacement

Align arrow to 70°F (22C) or midrange for removal/reinstall. Do not force; knob should slip into position.

Safety Warnings

General Safety Warnings

Read instructions carefully. Failure to observe safety info may result in injury, death, or property damage.

Thermostat Operation Modes

TA155 Operation

Manual HEAT-OFF-COOL selection. HEAT only cycles heat output, COOL only cycles cool output.

TB155 Auto-Changeover

ON-OFF switch enables auto-changeover based on ambient temp. Heat on to cool on dead band is 4°F.

Fan Operation

Manual fan speed selection, continuous or supply-dependent operation. Fan speed outputs HI-MED-LO.

Switched Power

L1 power is switched to the output when the system switch is not in the OFF position.

Electrical Ratings

Wiring and Application Notes

Wiring Connections Overview

Mapping of wire colors (Orange, Red, Brown, etc.) to functions like Fan High, Heat, Cool, L1, L2.

Remote Sensor Installation Caution

Failure to remove JP-1 when using a remote sensor causes improper operation. Some units lack this capability.

Remote Probe Wiring

Remote probe wiring should be located away from electrical motors or power wiring.

Peco TA155 Specifications

General

Brand	Peco
Model	TA155
Category	Thermostat
Language	English