ICP TSTAT0710 Installation Instructions Manual

DIGITAL THERMOSTAT

Installation

Instructions

P/N TSTAT0710

HEAT

6:03

Su

Am

70

ModeCooler

70

Warmer

o

COOL

COOL

HEAT

PUMP

MULTI-STAGE PROGRAMMABLE

International Comfort Products 2003

&

Table Of Contents

PREPARATION
REMOVE OLD THERMOSTAT
WIRE CONNECTIONS
WIRING DIAGRAMS
CALIBRATION
TEST OPERATION
TROUBLESHOOTING

CAUTION

This device complies with Part 15 of the FCC rules.
Operation is subject to the following 2 conditions:
(1) This device may not cause harmful interference,
and (2) This device must accept any interference
received, including interference that may cause
undesired operation.

Follow Installation Instructions carefully.

DISCONNECT POWER TO THE HEATER ­AIR CONDITIONER BEFORE REMOVING
THE OLD THERMOSTAT AND INSTALLING
THE NEW THERMOSTAT.

International Comfort Products 2003

P/N TSTAT0710

WARNING

2
3
4
5
8
9

10

Page 1

STEP #1

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PREPARATION

Proper installation of the thermostat will be
accomplished by following these step
by step instructions. If you are unsure
about any of these steps, call a qualified
technician for assistance.

Assemble tools

Flat Blade
Screwdriver

Make sure your Heater/Air Conditioner

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is working properly before beginning

Wire cutter
& Stripper

installation of the thermostat.

Carefully unpack the thermostat.

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Save the screws, bracket, and
instructions.

Turn off the power to the Heating/Air

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Conditioning system at the main fuse
panel. Most residential systems have
a separate breaker for disconnecting
power to the furnace.

Page 2

STEP #2

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70

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REMOVE & REPLACE OLD THERMOSTAT

Remove the cover of the old thermostat.
If it does not come off easily check for
screws.

Loosen the screws holding the thermostat
base or subbase to the wall, and lift away.

Disconnect the wires from the old
thermostat. Tape the ends of the wires
as you disconnect them, and mark them
with the letter of the terminal for easy
reconnection to the new thermostat.

Keep the old thermostat for reference
purposes, until your new thermostat is
functioning properly.

Page 3

STEP #3

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WIRE CONNECTIONS

If the terminal designations on your old
thermostat do not match those on the
new thermostat, refer to the chart below,

or the wiring diagrams that follow.

Wire from the

old thermostat

terminal marked

Function

Install on the

new thermostat

connector marked

G or F Fan G

Y1, Y or C

W1, W or H

Cooling Y1

Heating

W1,O,B

PowerRh, R, M, Vr, A R

C

O/B

Y2

W2

RS+5 RS+5

RS RS

RS G GND

CK1

CK2

Common

Rev. Valve

2nd Stage Cool

2nd Stage Heat

Remote Sensor +5vdc

Remote Sensor Signal

Remote Sensor Ground

Dry Contact Switch 1

Dry Contact Switch 2

W1,O,B**

* C may not be used on all systems.

** O/B is used if your system is a Heat Pump.

Page 4

C *

Y2

W2

Sample Wiring Diagrams

5 Wire, 1 Stage Cooling, 1 Stage Gas Heat

O

R

W2

Y2

Y1

W1

C

G

Thermostat

* If using electric heat this option must be
selected on during advanced setup.

Residential Gas or Electric Heat *,
Electric Cool, split systems & package
units

24 vac common

fan relay

compressor relay

1st stage heat circuit

24 vac return

L

E

C

G

Y1

O

W1

R

Y2

W2

4 Wire, 1 Stage Cooling, 1 Stage Gas Heat

O

R

W2

Y2

W1

Y1

C

G

Thermostat

* If using electric heat this option must be
selected on during advanced setup.

Page 5

Residential Gas or Electric Heat *,
Electric Cool, split systems & package
units

fan relay

compressor relay

1st stage heat circuit

24 vac return

L

E

C

G

Y1

O

W1

R

Y2

W2

Sample Wiring Diagrams

6 Wire, 2 Stage Cooling, 1 Stage Heat

O

R

W2

Y2

W1

Y1

C

G

Thermostat

* If using electric heat, this option must
be selected during advanced setup.

6 Wire, 1 Stage Cooling, 2 Stage Heat

W2

O

R

W1

Y1

C

G

Y2

Thermostat

Residential 2 Stage Cooling, with
Gas or Electric Heat*

24 vac common

fan relay

compressor relay

1st stage heat circuit

24 vac return

2nd stage compressor relay

Residential & commercial 1 Stage Cooling,
with 2 Stage Gas or Electric Heat*

24 vac common

fan relay

compressor relay

1st stage heat circuit

24 vac return

2nd stage heat circuit

L

E

C

G

Y1

O

W1

R

Y2

W2

L

E

C

G

Y1

O

W1

R

Y2

W2

Page 6

Sample Wiring Diagrams

7 Wire, 2 Stage Cooling, 2 Stage Heat

O

R

Y2

W2

** Commercial heat pumps do not have
the heat pump turned on in advanced setup.

5 Wire, 1 Stage Cooling, 1 Stage Heat - Heat Pump*

Y2

W2

* If using residential heat pump, this option
must be selected on during advanced setup.

Y1

W1

O

R

W1

C

G

Y1

C

G

Commercial Gas or Electric Heat ***,
Electric Cool, split systems & package units
including Commercial Heat Pumps **

Thermostat

1st stage heat circuit

2nd stage compressor relay

2nd stage heat circuit

*** If using electric heat, this option must
be selected on during advanced setup.

No auxiliary heat, residential Heat Pumps ,
split systems & package units

Thermostat

24 vac common

fan relay

compressor relay

24 vac return

24 vac common

fan relay

compressor relay

reversing valve

24 vac return

L

E

C

G

Y1

O

W1

R

Y2

W2

L

E

C

G

Y1

O

W1

R

Y2

W2

Page 7

Sample Wiring Diagram

6 Wire, 1 Stage Cooling, 2 Stage Heat, Heat Pump *

W2

O

R

W1

Y1

C

G

Y2

Most residential split and package heat pumps
with auxiliary heat

Thermostat

24 vac common

fan relay

compressor relay

1st stage heat circuit

24 vac return

2nd stage heat circuit

* The heat pump option must be selected
on during advanced setup.

Calibration

Every thermostat is calibrated before it leaves the factory.
Under normal circumstances there will never be a need to
recalibrate the thermostat again.
To accommodate special needs, the thermostat may be recalibrated
following these steps:

1. While holding the mode button in, press the fan button for
5 seconds. After all the icons in the display appear, release
the buttons.

2. Press the Up and Down arrow buttons simultaneously, twice.

3. Press the up or down buttons until the flashing number
equals the current room temperature.

4. Press the mode button to return to normal operation.

L

E

C

G

Y1

O

W1

R

Y2

W2

Page 8

STEP #4

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TEST OPERATION

Turn the power on to the Heating/Air
Conditioning system.

Press the MODE button repeatedly until
the HEAT icon appears on the display.
Press the Up or Down buttons until the set
temperature is 10 degrees above room
temperature. The furnace should turn on.

Press the MODE button repeatedly until
the COOL icon appears on the display.
Press the Up or Down buttons until the set
temperature is 10 degrees below room
temperature. The air conditioner should
turn on. NOTE: Most equipment has a

time delay of 5 minutes between cool
cycles. This feature is defeatable on the
thermostat. Consult the Owner's Manual
under Setup, cycles per hour.

Press the MODE button to OFF. Press
the FAN button to Fan On. The fan
should turn on and run continuously.

Page 9

TROUBLESHOOTING

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SYMPTOM: When using 4 wires (R, G, W, Y),

Warmer

the air conditioning equipment tries
repeatedly to turn on, but cannot. At
times the display dims or disappears.
CAUSE: There is not enough power available
to "power share".
REMEDY: Connect a 270 ohm, 10 watt power
resistor at the furnace as shown below.

For Problem A/C For Problem Heat

R G W Y C

R G W Y C

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SYMPTOM: The air conditioning does not

TR300-10w

TR300-10w

attempt to turn on.
CAUSE: The compressor timer lockout may
prevent the air conditioner from
turning on, for a period of time.
REMEDY: Consult the Owner's Manual in
the Setup section to defeat the
cycles per hour and compressor
timeguard.

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SYMPTOM: The display is blank.

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CAUSE: Lack of proper power.
REMEDY: Make sure power is turned on to

the furnace and 24vac between R & W.
If C is used, 24vac between R & C.

Page 10

TROUBLESHOOTING

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SYMPTOM: The air conditioning does not
attempt to turn on.
CAUSE: The cooling setpoint is set too
high.
REMEDY: Consult the Owner's Manual in
the Setup section to lower the
cooling setpoint limit.

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SYMPTOM: The heating does not attempt
to turn on.
CAUSE: The heating setpoint is set too
low.
REMEDY: Consult the Owner's Manual in
the Setup section to raise the
heating setpoint limit.

Page 11

TROUBLESHOOTING

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SYMPTOM: When controlling a residential heat

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pump, and asking for cooling, the heat
comes on.
CAUSE: Heat pump is not selected "on" in the
Advanced Setup.
REMEDY: Select heat pump on during Advanced
Setup programming. Consult the Owner's
Manual.

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SYMPTOM: When calling for cooling, both

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the heat and cool come on.
CAUSE: The Advanced Setup is configured
to control a heat pump, and the hvac
the thermostat is controlling is a
"conventional" (non heat pump)
system.
REMEDY: Consult the Owner's Manual in
the Advanced Setup section to turn
off the heat pump.

4Z95

Slimline P/N TSTAT0710

Tested to Comply

c

with FCC Standards

C

F

FOR HOME OR OFFICE USE

P/N 88-416

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