TOTALINE P374-1 900 User manual

I
OTN
TAL E
AUTO
0I 2 0 :
Su
Pm
HEAT
OOL
C
27
74
RESIDENTIALRESIDENTIAL
THERMOSTATTHERMOSTAT
P/NP/N
P374-P374-19001900
TOTALINE
Signature
HEAT
COOL HEAT
PUMP
DUAL
FUEL CAPABLE
HEAT
COOL HEAT
PUMP
DUAL
FUEL CAPABLE
7-DAY
PROGRAMMABLE
DIGITAL
THERMOSTAT
HUMIDITY
CONTROL
3 Configurable Outputs
Control up to 3 Heat &
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
3 Configurable Outputs
Control up to 3 Heat &
2 Cool Stages
Accepts Optional Humidity Module:
Controls Humidification,
Dehumidification and Reheat
Programmable Output
Accepts EZ Programmer
Accepts Optional IR Remote Control
Optional Internet / Phone Control
Accessory
Equipped with
Humidity Module
with
Replacement Components Division Carrier Corporation 08/05
Meets Residential California Title 24
Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage
Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.
INSTALLATION
INSTRUCTIONS
INSTALLATION
INSTRUCTIONS

Page i
NOTE: Due to variations in environmental conditions, it is not
always possible to achieve the desired humidification or
dehumidification setpoint.
MISC3 MISC3
OK
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.
Follow the Installation Instructions before proceeding.
Set the thermostat mode to “OFF” prior to changing
settings in setup or restoring Factory Defaults.
NEVER PUT MORE THAN ONE
JUMPER ON THE SAME MISC
JUMPER BLOCK!
THIS MAY DAMAGE YOUR
THERMOSTAT AND VOID
YOUR WARRANTY.
CAUTION
C
c
F
FOR HOME OR OFFICE USE
Tested to Comply
with FCC Standards
Thermostat P374-1900
4Z95
TOTALINE
CAUTION

8
2
1
3
6
7
4
5
Preparation
Remove & Replace the
Old Thermostat
Configuring the MISC
Outputs
Wiring Diagrams
Calibrating the
Thermostat Sensors
Test Operation
TroubleShooting
Page iii
TOTALINE
Table of ContentsTable of Contents
Wire Connections

Page 1.1
SECTION 1
PreparationPreparation
1
TOTALINE
Assemble tools
Flat Blade
Screwdriver
Wire cutter
& Stripper
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.
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.

Page 2.1
SECTION 2
Remove & Replace the Old ThermostatRemove & Replace the Old Thermostat
TOTALINE
2
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.

3
TOTALINE
Page 3.1
Section 3 Contents:
Configuring the Jumpers........3.2
Explanation of Jumper
Settings..................................3.3
SECTION 3
Configuring the MISC OutputsConfiguring the MISC Outputs

3
Page 3.2
Configuring the JumpersConfiguring the Jumpers
NEVER PUT MORE THAN
ONE JUMPER ON THE SAME
MISC JUMPER BLOCK!
DOING SO MAY DAMAGE
YOUR THERMOSTAT AND
VOID THE WARRANTY.
MISC3 MISC3
OK
W3
PROG
HUM
DEHUM
MISC3 MISC2 MISC1
Y2
(MISC1
ONLY)
TOTALINE
CAUTION
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 five 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.
HP
GAS
B
O
ELEC
GAS
(FAN)
W1
Y1
G
R
C
MISC2
CK1
CKGND
W2
MISC1
RS2
RSGND
MISC3
RS+5
Rs1
W3
PROG
HUM
DEHUM
MISC3 MISC2 MISC1
Y2
(MISC1
ONLY)
INSTALL HUMIDITY
MODULE WITH SENSING
ELEMENT OUTWARD
HUM NO HUM
1
2
4
6
8
X
Z
1
5
7
9
Y
3

Page 3.3
W3 JUMPER SETTING
If the jumper for MISC1, MISC2, or MISC3 is set to W3, the corresponding MISC
screw terminal on the backplate will control a third stage of heat.
3
PROG JUMPER SETTING
If the jumper for MISC1, MISC2, or MISC3 is set to PROG, the corresponding MISC screw
terminal on the backplate will control a pilot relay or other accessory.
The 3rd Stage of Heat is turned on when:
(A) The 1st and 2nd stages have been on for the time required (steps 27
and 28, page 14.6). It is adjustable from 0-60 minutes and the default
is two minutes.
(B) The temperature from the setpoint is equal to or greater than: the set-
point plus the 1st stage deadband (step #24, 14.5), plus the 2nd stage
deadband (step #25, 14.5) plus the 3rd stage deadband (step #26,
14.5). This 3rd stage deadband is adjustable from 0-10 degrees and
the default is two degrees.
Explanation of Jumper SettingsExplanation of Jumper Settings
And
Heat
Setpoint
Cool
Setpoint
Deadband Deadband DeadbandDeadbandDeadband
db 1 db 1db 2 db 2db 3 (adj. 1-6 )(adj. 0-10 )(adj. 0-10 ) (adj. 0-10 )(adj. 1-6 )
1st Stage
turn on
2nd Stage
turn on
3rd Stage
turn on
1st Stage
turn on
2nd Stage
turn on
Heating
Cooling
TEMPERATURE
DECREASE INCREASE
W3 MULTI-STAGE OPERATION EXPLAINED - SECTION 14 of the Owner’s
Manual
This jumper setting allows the MISC outputs to control a pilot relay by time,
temperature, or a signal from the Internet/Phone. The following are three
possible scenarios:
By Time: A device that requires a start and stop time. An example
of this would be an exterior lighting system that needed to be
energized every day between the hours of 8pm and 1am.
By Temperature: An exhaust fan that needs to energize whenever
the temperature from RS2 rises above 90 degrees F.
By Remote: Remotely arming a security system through the web or phone.
PROGRAMMABLE OUTPUT - SECTION 15 of the Owner’s Manual
TOTALINE

DEHUM JUMPER SETTING
HUM JUMPER SETTING
If the jumper for MISC1, MISC2, or MISC3 is set to HUM, the corresponding MISC screw
terminal on the backplate will control a humidification system.
Explanation of Jumper Settings (continued)Explanation of Jumper Settings (continued)
If the jumper for MISC1, MISC2, or MISC3 is set to DEHUM, the corresponding MISC screw
terminal on the backplate will be connected to the dehumidification terminal of a furnace board.
NOTE: Not all furnaces have a dehumidification terminal.
DEHUMIDIFICATION OPERATION - SECTION 10 of the Owner’s Manual
If your HVAC unit is equipped with a dehumidification system the thermostat will
operate in one of two ways.
1) Normally Closed (NC): The thermostat will de-energize the MISC1, MISC2,
or MISC3 terminal of the thermostat (this MISC terminal is connected to the
DEHUM terminal on your furnace) to allow the fan to run in low speed when
the humidity in the home is above the dehumidify setpoint you have chosen
and there is a call for 1st stage cooling.
2) Normally Open (NO):
The thermostat will energize the MISC1, MISC2, or
MISC3 terminal of the thermostat (this MISC terminal is connected to the
DEHUM terminal on your furnace) to allow the fan to run in low speed when
the humidity in the home is above the dehumidify setpoint you have chosen
and there is a call for 1st stage cooling.
HUMIDIFICATION OPERATION - SECTION 9 of the Owner’s Manual
If your HVAC unit is equipped with a humidification system the thermostat will
provide power to the MISC1, MISC2, or MISC3 terminal of the thermostat when
the humidity in the home falls below the humidity setpoint you have chosen.
The value for this setpoint ranges from 0% to 60%. If no humidity is desired
or if a humidification system has not been installed, set the value to OFF.
TOTALINE
Page 3.4
3

Page 3.5
3Y2 JUMPER SETTING
If the jumper for MISC1 is set to Y2 the MISC1 screw terminal on the backplate
will control a second stage of cooling.
Y2 OPERATION - SECTION 14 of the Owner’s Manual
Control up to two Cool stages.
The 2nd Stage of heat or cool is turned on when:
(A) The 1st Stage has been on for the time required (step #27,
page 14.6). It is adjustable from 0-60 minutes and the default
is two minutes.
(B) The temperature spread from the setpoint is equal to or greater
than: the setpoint plus the deadband (step #24, page 14.5), plus
the 2nd deadband (step #25, page 14.5). This 2nd deadband is
adjustable from 0-10 degrees and the default is two degrees.
Explanation of Jumper Settings (continued)Explanation of Jumper Settings (continued)
And
TOTALINE
Cool
Setpoint
DeadbandDeadband
db 1 db 2
(adj. 0-10 )(adj. 1-6 )
1st Stage
turn on
2nd Stage
turn on
Cooling
TEMPERATURE INCREASE

Page 4.1
SECTION 4
Wire ConnectionsWire Connections
TOTALINE
4
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.
** O/B is used if your system is a Heat Pump.
Wire from the
old thermostat
terminal marked Function
Install on the
new thermostat
connector marked
G or F Fan G
Y1, Y or C Cooling Y1
W1, W or H Heating W1/O/B
PowerRh, R, M, Vr, A R
C
O/B
C
Common
Rev. Valve
W2 2nd Stage Heat
RS+5 Remote Sensor +5vdc
Remote Sensor Signal
CKGND Dry Contact Switch 2
RS+5
RS1RS1
RSGND Remote Sensor Ground RSGND
CK1 Dry Contact Switch 1 CK1
CKGND
W1/O/B**
W2
MISC1
MISC2
MISC3
MISC1
MISC2
MISC3
RS2 RS2
Remote Sensor Signal #2
Configurable Output #1
Configurable Output #2
Configurable Output #3

TOTALINE
Page 5.1
Section 5 Contents:
HVAC Equipment Wiring............5.2
MISC1, MISC2, and MISC3
Wiring........................................5.6
Remote Sensor and CK1-CK2
wiring for Time Clock...............5.8
SECTION 5
Sample Wiring DiagramsSample Wiring Diagrams
5

Y1
G
R
C
MISC2
CK1
CKGND
W1/O/B
MISC1
RS+5
RS1
RSGND
W2
6 Conductor 18 gauge
unshielded cable from the
thermostat to the equipment.
24 vac return
fan relay
compressor relay
1st stage heat circuit
W1
W2 GRC
Y1
RS2
6 Wire, 1 Stage Cooling, 1 Stage Heat
24 vac common
2nd stage heat circuit
MISC3
HP
GAS
B
O
ELEC
GAS
(FAN)
W1
Y1
G
R
C
MISC2
CK1
CKGND
W2
MISC1
RS2
RSGND
MISC3
RS+5
Rs1
W3
PROG
HUM
DEHUM
MISC3 MISC2 MISC1
Y2
(MISC1
ONLY)
INSTALLHUMIDITY
MODULEWITH SENSING
ELEMENTOUTWARD
1
2
4
6
8
X
Z
1
5
7
9
Y
3
HUM NOHUM
HP
GAS
B
O
ELEC
GAS
(FAN)
Residential & Commercial 1 Stage Cooling,
with 1st stage Gas Heat
Commercial Heat Pump 1 Stage Cooling
with 2 Stage Heat
OR
Page 5.2
TOTALINE
5

Y1
G
R
C
MISC2
CK1
CKGND
W1/O/B
MISC1
RS+5
RS1
RSGND
W2
6 Conductor 18 gauge
unshielded cable from the
thermostat to the equipment.
24 vac return
fan relay
compressor relay
1st stage heat circuit
W1
W2 GR C
Y1
RS2
Residential & Commercial 1 Stage Cooling,
with 1st stage Electric Heat
6 Wire, 1 Stage Cooling, 1 Stage Heat
24 vac common
2nd stage heat circuit
MISC3
HP
GAS
B
O
ELEC
GAS
(FAN)
Page 5.3
TOTALINE
5
HP
GAS
B
O
ELEC
GAS
(FAN)
W1
Y1
G
R
C
MISC2
CK1
CKGND
W2
MISC1
RS2
RSGND
MISC3
RS+5
Rs1
W3
PROG
HUM
DEHUM
MISC3 MISC2 MISC1
Y2
(MISC1
ONLY)
INSTALLHUMIDITY
MODULEWITH SENSING
ELEMENTOUTWARD
1
2
4
6
8
X
Z
1
5
7
9
Y
3
HUM NOHUM

Y1
G
R
C
MISC2
CK1
CKGND
W1/O/B
MISC1
RS+5
RS1
RSGND
W2
6 Conductor 18 gauge
unshielded cable from the
thermostat to the equipment.
24 vac return
Fan Relay
Compressor Relay
Reversing Valve
O
W2 GR C
Y1
RS2
Residential Heat Pump with O Reversing
Valve 1 Stage Cooling, with 2 stage Heat
6 Wire, 1 Stage Cooling, 2 Stage Heat
24 vac common
2nd stage heat circuit
MISC3
HP
GAS
B
O
ELEC
GAS
(FAN)
Page 5.4
TOTALINE
5
HP
GAS
B
O
ELEC
GAS
(FAN)
W1
Y1
G
R
C
MISC2
CK1
CKGND
W2
MISC1
RS2
RSGND
MISC3
RS+5
Rs1
W3
PROG
HUM
DEHUM
MISC3 MISC2 MISC1
Y2
(MISC1
ONLY)
INSTALLHUMIDITY
MODULEWITH SENSING
ELEMENTOUTWARD
1
2
4
6
8
X
Z
1
5
7
9
Y
3
HUM NOHUM

Y1
G
R
C
MISC2
CK1
CKGND
W1/O/B
MISC1
RS+5
RS1
RSGND
W2
6 Conductor 18 gauge
unshielded cable from the
thermostat to the equipment.
24 vac return
W2 GR C
Y1
RS2
Residential Heat Pump with b Reversing
Valve 1 Stage Cooling, with 2 stage Heat
6 Wire, 1 Stage Cooling, 2 Stage Heat
24 vac common
2nd stage heat circuit
MISC3
HP
GAS
B
O
ELEC
GAS
(FAN)
Fan Relay
Compressor Relay
Reversing Valve
Page 5.5
TOTALINE
5
b
HP
GAS
B
O
ELEC
GAS
(FAN)
W1
Y1
G
R
C
MISC2
CK1
CKGND
W2
MISC1
RS2
RSGND
MISC3
RS+5
Rs1
W3
PROG
HUM
DEHUM
MISC3 MISC2 MISC1
Y2
(MISC1
ONLY)
INSTALLHUMIDITY
MODULEWITH SENSING
ELEMENTOUTWARD
1
2
4
6
8
X
Z
1
5
7
9
Y
3
HUM NOHUM

HP
GAS
B
O
ELEC
GAS
(FAN)
W1
Y1
G
R
C
MISC2
CK1
CKGND
W2
MISC1
RS2
RSGND
MISC3
RS+5
Rs1
W3
PROG
HUM
DEHUM
MISC3 MISC2 MISC1
Y2
(MISC1
ONLY)
INSTALLHUMIDITY
MODULEWITH SENSING
ELEMENTOUTWARD
1
2
4
6
8
X
Z
1
5
7
9
Y
3
HUM NOHUM
Y1
G
R
C
MISC2
CK1
CKGND
W1/O/B
MISC1
RS+5
RS1
RSGND
W2
2nd Stage Cooling
Y2 W3
RS2
Adding a 2nd Stage of Cooling (MISC1), Sprinkler
System (MISC2), and 3rd Stage of Heating (MISC3)
3rd Stage Heat
MISC3
Sprinkler System
W3
PROG
HUM
DEHUM
MISC3 MISC2 MISC1
Y2
(MISC1
ONLY)
Page 5.6
TOTALINE
5

HP
GAS
B
O
ELEC
GAS
(FAN)
W1
Y1
G
R
C
MISC2
CK1
CKGND
W2
MISC1
RS2
RSGND
MISC3
RS+5
Rs1
W3
PROG
HUM
DEHUM
MISC3 MISC2 MISC1
Y2
(MISC1
ONLY)
INSTALLHUMIDITY
MODULEWITH SENSING
ELEMENTOUTWARD
1
2
4
6
8
X
Z
1
5
7
9
Y
3
HUM NOHUM
Y1
G
R
C
MISC2
CK1
CKGND
W1/O/B
MISC1
RS+5
RS1
RSGND
W2
RS2
Adding a Humidification System (MISC1) and Dehumidification System (MISC2)
MISC3
Dehumidification
System
Humidification
System
HUM
NO HUM
Page 5.7
TOTALINE
5
W3
PROG
HUM
DEHUM
MISC3 MISC2
Y2
(MISC1
ONLY)
MISC1

Y1
G
R
C
MISC2
CK1
CKGND
W1/O/B
MISC1
RS+5
RS1
RSGND
W2
RS2
Wired Remote Sensor and Time Clock
MISC3
RS
RS+V
RS-GND
2 conductor 18 gauge
unshielded cable from
the thermostat to the
remote sensor.
Optional
Remote
Sensor
DRY CONTACT SWITCH - The terminals are ‘normally open’ (or may be programmed for
normally closed operation, see page 16.2 of the Owner’s Manual). Closing or
completing the circuit will cause the thermostat
to do one of the following:
1) If Vacation is selected in step #41 of the Advanced Setup (see page 17.3 of the
Owner’s Manual), when the dry contact is energized the thermostat will be forced into
Vacation mode (see Section 20 of the Owner’s Manual).
2) If Service Pan is selected, when the dry contact is energized the thermostat will lockout
Y1 (compressor) and write Service Pan on the display.
Page 5.8
TOTALINE
5
12
11
10
9
8
765
4
3
2
1