TOTALINE 1 For All P374-1000FM User manual

OWNER'S MANUAL
P/N P374-1000FM
Programmable or
Non-Programmable
Digital Thermostat
Mounts Flush to the Wall
1 Day Programmable or
Non-Programmable
4 Time Periods per Day
Auto Changeover
Large, Easy To Read Display
Thermoglow Backlight
Dual or Single Setpoint
No Batteries Required
Outdoor Temperature
Sensor Available
1 For All
Use with most Air Conditioning & Heating Systems including: 1 Stage Electric
Cooling or 2 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.
Meets Residential California Title 24
72
74
70
Am
COOL
HEAT
AUTO
I2:00
c
h
t
a
i
b
w
l
e
S
TOTALINE
Replacement Components Division Carrier Corporation 4/01

Table Of Contents
FRONT PANEL
DISPLAY
QUICK START Set the clock and go
BASIC OPERATION
PROGRAMMING 4 Time Periods
ADVANCED SETUP
ABOUT ADVANCED OPERATION
WARRANTY
Page 1
CAUTION
Follow Installation Instructions before proceeding.
SET THERMOSTAT TO MODE “OFF” PRIOR TO
CHANGING SETTINGS IN SETUP OR RESTORING
FACTORY DEFAULTS.
P/N P374-1000FM
2
3
5
6
8
11
15
20
Replacement Components Division Carrier Corporation 4/01

Front Panel
Page 2
Liquid Crystal Display
with Thermoglow
Up/Down Buttons
Mode Button
Fan Button
Heat or Cool Indicator
Heat = Red, Cool = Green
Temperature Sensor Bubble
1
2
3
4
5
6
1
3
5
2
4
6

88
88
HEAT
COOL
ONOFF
AUTO
Fan On
Program
Locked
Outside
Setup
On
o
Am
Pm
I8:88
88
Day
Night
Evening
Morning
1
2
4
3
Mode Indicators
Selects the operation mode of the equipment.
HEAT - indicates the heat mode.
COOL - indicates the air conditioning mode.
AUTO - indicates the system will automatically
changeover between heat and cool modes
as the temperature varies.
OFF - indicates the entire system is turned off.
PROGRAM ON - indicates the stored program
is enabled to run. Page 6.
Clock
Indicates the current time of day. This clock is
also used to program the timer periods. Page 5.
Room Temperature Display
Indicates the current room temperature. When
the degree icon is flashing the display indicates
the outside temperature.
Desired Set Temperature
Indicates desired room temperature(s). Page 7.
Display
Page 3
2
1
5
1
1
3
6
6
7
9
8
4
4
1

5
6
7
8
9
Outside Indication
Indicates the temperature displayed is from
the optional outside sensor. Page 19.
Morning, Day, Evening & Night Indication
Indicates the program time period. Page 8-10.
Setup Indication
Indicates the thermostat is in the Advanced
Setup mode. Page 11.
Fan Operation Indication
Fan On - indicates constant, continuous fan
operation.
When Fan On is not lit - indicates the fan will
only operate when necessary to heat or
to cool. Page 7.
Locked Indication
Locked appears after the right combination of
buttons are pressed, rendering the buttons
inoperative. Page 17.
Display
Page 4

Pressing the Up and Down
buttons will modify the flashing
selection.
Press the Mode button.
While holding the Mode,
press the Fan button for
2 seconds to enter Setup
screens.
Press both Mode and
Fan buttons as
above to return to
normal operation.
Quick Start Set the Clock and Go
Page 5
The thermostat is preprogrammed from the
factory to operate 1 or 2 Stage equipment* without
the need for further programming. To optimize the
installation of this thermostat follow the instructions
in the Advanced Setup section.
* The thermostat is not preprogrammed from the
factory to operate electric heat or heat pump systems.
To control these systems, follow the steps in the
Advanced Setup section, page 12.
buttons.
To adjust the
clock use
I
I2:00
FAN
FAN
MODE
MODE

The HEAT setting indicates the
temperature the room has to
reach before the furnace will
turn on to heat the room.
The COOL setting indicates the
temperature the room has to
reach before the air conditioner
will turn on to cool the room.
OFF indicates both heating
and air conditioning
systems are turned off.
AUTO will automatically select
heat or cool based on room
temperature demand.
Program On will activate the
stored timer operation.
(Morning, Day, Evening
& Night periods.)
Select Mode
Basic Operation
Page 6
Press
Press
Press
Press
70 69
Pm
HEAT
I2:00
70
72
Pm
COOL
I2:00
70
72
69
Pm
COOL
HEAT
AUTO
I2:00
70
73
70
Night
ProgramOn
Pm
COOL
HEAT
I2:00
70
Pm
OFF
I2:00
MODE
MODE
MODE
MODE

buttons.
In any mode, adjust the
desired Set Temperature
with
Pressing the Up or Down buttons in Auto mode will adjust both the heat and cool
set temperatures simultaneously.
Pressing the Up or Down buttons in Heat or Cool modes will adjust only the
Heat or Cool set temperature.
To select desired temperature in Single Setpoint, please also refer to page 17.
Select Desired Temperature
Page 7
Basic Operation
Press
FAN
70
72
69
Pm
COOL
HEAT
AUTO
AUTO
I2:00
65
85
55
FAN ON
Pm
COOL
HEAT
I2:00
Fan
Operation
Fan On indicates constant fan operation.
This feature is active even if the thermostat
is set to Off.

Programming 4 Time Periods
Page 8
Press
Press
Press
Press the Mode button. While holding the Mode,
press the Up button for 2 seconds to enter
time period programming.
Continued
MODE
MODE
MODE
MODE
74
COOL
74
72
COOL
HEAT
Adjust the start time
for Morning.
Adjust the heating
setpoint for Morning.
Adjust the cooling
setpoint for Morning.
(35 - 99 )
(35 - 99 )
Am
Am
Am
7:30
7:30
7:30
Morning
Morning
Morning
IMPORTANT NOTE: If the thermostat is configured for single setpoint
operation, there will be a prompt to enter only one setpoint.

MODE
Page 9
Press
Press
Press
Press
Press
Continued
MODE
MODE
MODE
MODE
Programming 4 Time Periods
Adjust the start time
for Evening.
Adjust the cooling
setpoint for Evening.
Adjust the start time
for Day.
Adjust the heating
setpoint for Day.
Adjust the cooling
setpoint for Day.
(35 - 99 )
(35 - 99 )
(35 - 99 )
Am
I0:30
Day
75
COOL
Am
I0:30
Day
73
75
HEAT
COOL
Am
I0:30
Day
Pm
5:30
Evening
75
COOL
Pm
5:30
Evening

Page 10
Press
Press
Press
Press
MODE
MODE
MODE
MODE
73
75
HEAT
COOL
Pm
5:30
Evening
Pm
I i:30
Night
78
COOL
Pm
I i:30
Night
70
78
HEAT
COOL
Pm
I i:30
Night
Programming 4 Time Periods
Adjust the heating
setpoint for Night
Adjust the heating
setpoint for Evening.
Adjust the cooling
setpoint for Night.
Adjust the start time
for Night.
(35 - 99 )
(35 - 99 )
(35 - 99 )
Press the Mode button. While holding the Mode,
press the Up button to exit time period
programming.
MODE

Advanced Setup
Page 11
Press
Press
Press
Continued
Adjust the time of day
clock.
NOTE: Each step # is located at
the top right corner of the
display for easy reference.
Tip: To change hours quickly, press and
hold the Fan button in and press
the up or down buttons.
FAN
MODE
Select 1-Day Programmable (ON)
or Non-Programmable (OFF)
On
Off
Select Single setpoint or
Dual setpoint operation.
1 = Single Setpoint
2 = Dual Setpoint
MODE
MODE
MODE
I
Am
Setup
I2:00
2
Setup
2
3
Setup
ON
Program
Bsp
Press the Mode button.
While holding the Mode,
press the Fan button
for 10 seconds to enter Setup
screens.

Advanced Setup
Page 12
Press
Press
Press
Press
Press
Continued
Select the reversing
valve polarity for
Heat Pump, O or B.
(Step 5 only appears if
heat pump is on in step 4)
B
O
81f
Select Electric Heat On
or Off. (Step 6 only
appears if heat pump is
off in step 4)
On
Off
Adjust the deadband
from 1 - 6 degrees.
Adjust the minimum
difference between
cooling & heating
setpoints.
(0 - 6 )
MODE
MODE
MODE
MODE
MODE
0
5
Setup
Eh
6
OFF
Setup
2
7
Setup
88
2
8
COOL
HEAT
Setup
Select residential Heat
Pump, On or Off.
Hp
4
OFF
Setup
On
Off

Advanced Setup
Page 13
Press
Press
MODE
MODE
L I
I0
ON
Setup
Select the display back-
light always On, or Off
after 8 seconds.
On
Off
Select the cycles per
hour limit.
d=cycles per hour
limit defeated.
d1=d + defeat 5 min.
Compressor lockout.
(d, d1, 2 - 6)
6
9
Cy
Setup
Select thermostat
operation in degrees
Fahrenheit or Centigrade.
C
F
F
I I
Setup
MODE
FAN
Press
Press the Mode button.
While holding the Mode, press the Fan
button for 2 seconds to leave the Setup
screens. If no buttons are pressed, the
display will leave the setup screens after
60 seconds.

Advanced Setup
Page 14
Step # Description Range Factory Default
1 Time of day clock set 24 hour 12:00 Am
2 Time Period Programmable Off / On On
3 Display Mode 1 / 2 2
4
5
6
7
8
9
10
11
Heat Pump Off / On Off
Reversing Valve polarity O / B O
Electric Heat Off / On Off
Deadband or Temperature swing 1 - 6 1
Forced minimum difference heat/cool 0 - 6 2
Cycles per hour d, d1, 2 - 6 6
Thermoglow backlight Off / On On
Fahrenheit or Centigrade F / C F
Advanced Setup Table

About Advanced Features & Operation
Page 15
MEMORY BACKUP - In the event of a power loss, the
thermostat will retain the stored program settings without
external power or batteries.
2 STAGE OPERATION - The 2nd Stage of heat or cool is
turned on when (1) the 1st Stage has been on for a
minimum of two minutes, and (2) the temperature spread
from the setpoint is equal to or greater than: the setpoint
plus the deadband, plus 2 degrees.
Heat
Setpoint
Cool
Setpoint
Dead
Band
Dead
Band
2 degrees
1st Stage
turn on
2nd Stage
turn on
1st Stage
turn on
Heating Cooling
MINIMUM HEAT/COOL SETPOINT DIFFERENCE - The Heat
and Cool setpoints will not be allowed to come any closer
to each other than the value set in Advanced Setup step
# 8, on page 12. This minimum difference is enforced
during Auto changeover operation.
and Program On

About Advanced Features & Operation
Page 16
ELECTRIC HEAT - Selecting Electric Heat on, page 12,
step 6, will cause the thermostat to turn on the fan
any time there is a heat demand. Since all
control the fan, this feature should be off
is only electric.
immediately
gas furnaces
unless the heater
EMERGENCY HEAT - Is a feature available to Heat Pump
installations. To turn on Emergency Heat press in the
Fan button. While holding the Fan button press
Up button for 2 seconds. The Cool setpoint display
will read ‘EH’.
During Emergency Heat the thermostat will turn
on the fan and the 2nd stage of heat, when there is a
demand for heat, locking out the 1st stage compressor.
Exiting Emergency Heat is the same as entering. During
Emergency Heat only OFF and HEAT are available.
the
Press for
Emergency Heat
FAN
73
eh
74
Am
HEAT
I2:00

About Advanced Features & Operation
Page 17
KEYPAD LOCK - To prevent unauthorized use of the thermostat,
the front panel buttons may be disabled. To disable, or
‘lock’ the keypad, press and hold in the Mode button.
While holding the Mode button in, press the Up and Down
buttons in together. The Locked icon will appear on the
display.
SINGLE SETPOINT BEHAVIOR - When configured as a Single
Setpoint thermostat, page 11, step 3, the large number is
the setpoint. In Auto mode the deadband is above and
below the setpoint. To avoid short cycling in single setpoint
it is recommended to raise the deadband to a minimum of 2,
page 12, step 7.
Press and hold the Mode button for 2 seconds to display
the room temperature. Press any button to return to normal
display.
Press and hold the Fan button for 2 seconds to display the
outside temperature, if an optional outdoor sensor is
connected. Also see page 19.
Press all 3 for
Keypad Lockout
To unlock the buttons, again press and hold the Mode
button. While holding the Mode button in, press the Up
and Down buttons in together. The Locked icon will
disappear from the display.
MODE
85
55
55
Pm
COOL
HEAT
Locked
I2:00

About Advanced Features & Operation
Page 18
DUAL SETPOINT BEHAVIOR - The adjustable setpoint range
is: 35 - 99 degrees in Fahrenheit and 7 - 35 degrees in
Centigrade. When in the modes Heat or Cool, this
adjustable range is unhampered.
When adjusting any Auto mode, including programming
4 Time periods, the thermostat will not
Heat setpoint to get closer to the Cool setpoint
than the value programmed as the minimum difference
step 8, page 12.
When entering the Auto mode from Cool, the Heat and
Cool setpoints will remain spread apart by the amount
that they were adjusted, prior to entering Auto.
For example: If the Cool setpoint was set to 80 while
in the Cool mode and the Heat setpoint was adjusted to
70 while in the Heat mode, upon entering the Auto mode
the Heat and Cool setpoints would be 80 and 70. Both
setpoints would then move up and down together, (in this
example spread by 10 degrees), by pressing the up or
down buttons.
To move the Heat and Cool setpoints closer together,
enter the Cool or Heat mode by pressing the Mode button,
then adjust the setpoint(s) closer together. Heat is limited
to how close it can come to Cool by step 8, page 12.
allow the
in

About Advanced Features & Operation
Page 19
FACTORY DEFAULTS - If, for any reason it is desirable to
return all stored settings back to the factory default
settings, press the Mode button. While holding the Mode
button in, press the Down button for 2 sec. All icons will
appear. Press and hold in the Fan button until Fd
appears. This resets all factory settings. To calibrate
room temperature, press the Mode button once more.
At this point use the Up and Down buttons to calibrate
room temperature, if needed. Press the Mode button to
return to normal operation. NOTE CAUTION ON PAGE 1.
OUTSIDE SENSOR (Optional Accessory) - When connected
to terminals RS+5, RS, & GND on the back of the
thermostat, the thermostat will read the temperature from
the Outside
not control to this sensor, it is only to read outside
To read the temperature
press and hold the Fan button for 2 seconds.
The display will then only show Outside temperature.
Pressing any button will then return the display to
normal operation.
Sensor when asked to. This thermostat will
temperature.
from the Outside Sensor,
The Outside Sensor is available in a wired or wireless
version. The wired sensor can be connected to the
thermostat with
Unshielded,
See the Outside Sensor instructions for further details.
up to 500’ of 20 ga. or 300’ of 18 ga.
thermostat wire.