TOTALINE P374-2900, P374-1 900 Installation Instruction

INSTALLATION

INSTALLA TION

INSTRUCTIONS

INSTRUCTIONS

HEAT

HEAT

COOL

COOL

4

7

L

O

m

O

P

C

0

0

:

2

I

u

S

O

T

U

A

T

A

E

H

2

7

E

N

I

L O

A

T

T

PROGRAMMABLE

THERMOSTATTHERMOSTAT

P/N P/N

HEAT

HEAT

PUMP

PUMP

7-DAY

DIGITAL
THERMOSTA T

Set Point Limiting
Accepts EZ Programmer

3 Configurable Outputs

3 Configurable Outputs

Control up to 3 Heat &

Control up to 3 Heat &

2 Cool Stages

2 Cool Stages
Adjustable 2nd & 3rd Stage
Timers & Deadbands
Backlit Display & Button
Legends
Aux Heat Indicator
Dry Contact Equipped
Outdoor Sensor Ready with
High/Low Readouts for the Day

Accepts the

Accepts the

Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage
Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.

OPTIONAL

OPTIONAL

HUMIDITY MODULE

HUMIDITY MODULE

Economizer Control
Preoccupancy Fan Purge
Remote Averaging
Programmable Output
Light Activation Equipped
Accepts Optional Humidity Module:
Controls Humidification,
Dehumidification and Reheat
Accepts Optional IR Remote Control
Optional Internet / Phone Control
Accessory

COMMERCIALCOMMERCIAL

P374- P374- 29002900

Commercial Systems & Services Carrier Corporation 08/05

TOTALINE

Signature

TOTALINE

CAUTION

Follow the Installation Instructions before proceeding.
Set the thermostat mode to “OFF” prior to changing
settings in setup or restoring Factory Defaults.

CAUTION

NEVER PUT MORE THAN ONE
JUMPER ON THE SAME MISC
JUMPER BLOCK!

THIS MAY DAMAGE YOUR
THERMOSTAT AND VOID
YOUR WARRANTY.

MISC3

OK

NOTE: Due to variations in environmental conditions, it is not

always possible to achieve the desired humidification or
dehumidification setpoint.

This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two 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.

Thermostat P374-2900

Tested to Comply

c

with FCC Standards

C

F

4Z95

FOR HOME OR OFFICE USE

MISC3

Page i

Table of ContentsTable of Contents

TOTALINE

Preparation

Remove & Replace the
Old Thermostat

Configuring the MISC
Outputs

Wire Connections

Sample Wiring
Diagrams

Test Operation

Calibrating the
Thermostat Sensors

TroubleShooting

1
2
3
4
5
6
7
8

Page iii

SECTION 1

PreparationPreparation

1

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

TOTALINE

Flat Blade
Screwdriver

Make sure your Heater/Air Conditioner is working
properly before beginning installation of the
thermostat.

Carefully unpack the thermostat. Save the screws,
bracket, and instructions.

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

Wire cutter
& Stripper

Page 1.1

SECTION 2

Remove & Replace the Old ThermostatRemove & Replace the Old Thermostat

TOTALINE

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.

2

Page 2.1

SECTION 3

Configuring the MISC OutputsConfiguring the MISC Outputs

3

Section 3 Contents:

Configuring the Jumpers........3.2

Explanation of Jumper

Settings..................................3.3

TOTALINE

Page 3.1

Configuring the JumpersConfiguring the Jumpers

TOTALINE

For additional flexibility, your thermostat has three configurable
outputs. These outputs are designed to have different functions
depending on how the jumpers are set (below).
Each output, labeled MISC1, MISC2, and MISC3 may be set for one
of the six choices available.
In the diagram below, the MISC3 jumper has been set for HUM*
(humidification) operation, the MISC2 jumper has been set for
DEHUM* (dehumidification) operation, and the MISC1 jumper has
been set for PROG (programmable) operation.

(FAN)

DEHUM

CKGND

PROG

ECON

MISC2

W3

HUM

W1

Y1

G

CK1

C

MISC3 MISC2 MISC1

R

ELEC

GAS

HP

GAS

2

4

INSTALL HUMIDITY

1

3

B

O

W2

MISC1

HUM

NO HUM

RS2

MISC3

RS+5

Z

8

6

X
1

RSGND

Y

579

Y2

(MISC1
ONLY)

MODULE WITH SENSING

ELEMENT OUTWARD

W3

PROG

HUM

DEHUM

ECON

MISC3 MISC2 MISC1

*The Humidity Module (sold separately) must
be installed to operate a humidification
and/or dehumidification system.

(MISC1

ONLY)

Y2

CAUTION

NEVER PUT MORE THAN

ONE JUMPER ON THE SAME

MISC JUMPER BLOCK!

DOING SO MAY DAMAGE

YOUR THERMOSTAT AND

VOID THE WARRANTY.

Page 3.2

MISC3

OK

MISC3

3