TOTALINE P374- 0431 User manual

P/NP/N
P374-P374-04310431
TOTALINE
Replacement Components Division Carrier Corporation 08/05
OWNER’S
MANUAL
OWNER’S
MANUAL
Thermostat
Remote Control
& Receiver
Thermostat
Remote Control
& Receiver
Allows remote control
operation of basic
thermostat functions
Unique ‘Warmer & Cooler’
commands
Compatible with thermostat models:
P374-1700, P374-1800, P374-1900,
P374-2700, P374-2800, & P374-2900
for a complete list contact RCD
Complete Control from

Overview
Page 2
This accessory allows for the remote operation of
the most basic thermostat functions.
There are five buttons on the remote control. One
for Off, two for Fan control, one for Warmer and one
for Cooler.
The communication from the remote control to the
receiver is uni-directional, without feedback to the
user. It is because of this uni-directional control, we
have created a unique control algorithm for this
remote system.
The Warmer and Cooler buttons use a ‘fuzzy logic’
algorithm to decide whether to turn the heat or cool
on or off.
The Warmer or Cooler operational control
sequence varies depending on whether the
thermostat is set to be a MANUAL or an AUTO
changeover thermostat.

Operation
Page 3
Press the Warmer or Cooler
buttons and the heating -
cooling system will operate as
outlined in pages 4 through 8.
If the thermostat was off prior to
a Warmer or Cooler button
press, the system will turn on in
the last mode (Auto or Manual
changeover) of operation prior
to pressing Off.
Press the Fan On button for
continuous fan operation.
Pressing Fan Auto will allow the
Fan to turn on the fan only
when there is a heat or cool
demand.
Press the Off button to turn the
thermostat off.

OWarmer & Cooler Commands in Manual Changeover
Page 4
If the thermostat is configured for Manual
Heat/Cool changeover:
WARMER button press while in Heat or Off
mode:
When the thermostat receives a Warmer command
(button press) through the remote control and the
heater is not running, the set point will be raised
above the room temperature to start the heater
operation. This occurs even if the thermostat was
Off.
When the thermostat receives a Warmer command
and the heater is running, the set point will be
raised 2 degrees above the present set point.
WARMER button press while in Cool mode:
When the thermostat receives a Warmer command
(button press) through the remote control in Cool
mode, and the air conditioner is running, the set
point will be raised to the present room
temperature, which will turn off the air conditioner.
If the Warmer button is pressed and the air
conditioner is not running, the set point will be
raised 2 degrees.

O
Page 5
If the thermostat is configured for Manual
Heat/Cool changeover:
COOLER button press while in Cool or Off
mode:
When the thermostat receives a Cooler command
(button press) through the remote control and the
air conditioner is not running, the set point will be
lowered below the room temperature to start the
cooling operation. This occurs even if the
thermostat was Off.
When the thermostat receives a Cooler command
and the air conditioning is running, the set point will
be lowered 2 degrees below the present set point.
Cooler button press while in Heat mode:
When the thermostat receives a Cooler command
(button press) through the remote control, and the
heater is running, the set point will be lowered to
the present room temperature which will turn off the
heater.
If the Cooler button is pressed and the heater is not
running, the set point will be lowered 2 degrees.
Warmer & Cooler Commands in Manual Changeover

Page 6
OWarmer & Cooler Commands in Auto Changeover
If the thermostat is configured to Auto
Heat/Cool changeover:
WARMER button press while in Auto or Off
mode:
When the thermostat receives a warmer command
(button press) through the remote control, and the
heater is not running, the set points will be raised
to start the heater operation. If the heater is
running upon a Warmer button press, the set points
will be raised 2 degrees.
The remote control receiver will allow up to 3
successive Warmer button presses. After the 3rd
successive Warmer button press, the IR receiver
will not accept an additional Warmer button press
for 1 minute.
When the thermostat receives a Warmer command
(button press) and the air conditioner is running, the
set points will be raised so that the Cool set point is
the same as the present room temperature which
will then turn off the air conditioner. The thermostat
will not accept another Warmer button press for 10
seconds.

O
Page 7
If the thermostat is configured to Auto
Heat/Cool changeover:
COOLER button press while in Auto or Off
mode:
When the thermostat receives a Cooler command
(button press) through the remote control and the
air conditioner is not running, the set points will be
lowered to start the air conditioning operation. If
the air conditioner is running upon a Cooler button
press, the set points will be lowered 2 degrees.
The remote control receiver will allow up to 3
successive Cooler button presses. After the 3rd
successive Cooler button press, the IR receiver will
not accept an additional Cooler button press for 1
minute.
When the thermostat receives a Cooler command
(button press) and the heater is running, the set
points will be lowered so that the Heat set point is
the same as the present room temperature which
will then turn off the heater. The thermostat will not
accept another Cooler button press for 10 seconds.
Warmer & Cooler Commands in Auto Changeover

O
Page 8
Example #1
!The thermostat was turned off the prior day while
in Auto changeover mode.
!The following will occur if the Warmer button is
pressed while the thermostat is off:
!The thermostat changes from Off to Auto.
!The set point is raised to start heater
operation.
Example #2
!The thermostat was turned off the prior day while
in Manual, ‘standalone’ Heat mode.
!The following will occur if the Warmer button is
pressed while the thermostat is off:
!The thermostat changes from Off to Heat.
!The set point is raised to start heater
operation.
Example #3
!The thermostat was turned off the prior day while
in Manual, ‘standalone’ Cool mode.
!The following will occur if the Warmer button is
pressed while the thermostat is off:
!The thermostat changes from Off to Heat.
!The set point is raised to start heater
operation.
Examples of Typical Operation
The following 3 examples illustrate operation
when the thermostat is Off.

Connection
Page 9
Accessory jack located
on thermostat bottom
Accessory release button
To connect the IR Receiver to
the thermostat; insert the IR
receiver plug into the accessory
Jack of the thermostat. The
receiver will ‘lock’ into the
ventilation slots of the thermostat.
To remove the IR receiver from
the thermostat; press and hold
the accessory release button
while removing the IR receiver
from the thermostat’s accessory
jack.

Remote Control Battery Replacement
Page 10
Replace battery with CR 2025 or equivalent.
A replacement remote control may be purchased
separately, P/N P374-0433
Battery Door
Front View Rear View
+
+

Warranty
Page 11
One-Year Warranty - This Product is warranted to be free from defects in material and workmanship.
If it appears within one year from the date of original installation, whether or not actual use begins
on that date, that the product does not meet this warranty, a new or remanufactured part, at the
manufacturer’s sole option to replace any defective part, will be provided without charge for the
part itself provided the defective part is returned to the distributor through a qualified servicing
dealer.
THIS WARRANTY DOES NOT INCLUDE LABOR OR OTHER COSTS incurred for diagnosing, repairing,
removing, installing, shipping, servicing or handling of either defective parts or replacement parts.
Such costs may be covered by a separate warranty provided by the installer.
THIS WARRANTY APPLIES ONLY TO PRODUCTS IN THEIR ORIGINAL INSTALLATION LOCATION AND
BECOMES VOID UPON REINSTALLATION.
LIMITATIONS OF WARRANTIES – ALL IMPLIED WARRANTIES (INCLUDING IMPLIED WARRANTIES OF FITNESS
FOR A PARTICULAR PURPOSE AND MERCHANTABILITY) ARE HEREBY LIMITED IN DURATION TO THE PERIOD
FOR WHICH THE LIMITED WARRANTY IS GIVEN. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW
LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE MAY NOT APPLY TO YOU. THE EXPRESSED
WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND MAY NOT BE ALTERED, ENLARGED, OR
CHANGED BY ANY DISTRIBUTOR, DEALER, OR OTHER PERSON WHATSOEVER.
ALL WORK UNDER THE TERMS OF THIS WARRANTY SHALL BE PERFORMED DURING NORMAL WORKING
HOURS. ALL REPLACEMENT PARTS, WHETHER NEW OR REMANUFACTURED, ASSUME AS THEIR WARRANTY
PERIOD ONLY THE REMAINING TIME PERIOD OF THIS WARRANTY.
THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR:
1. Normal maintenance as outlined in the installation and servicing instructions or owner’s
manual, including filter cleaning and/or replacement and lubrication.
2. Damage or repairs required as a consequence of faulty installation, misapplication, abuse,
improper servicing, unauthorized alteration or improper operation.
3. Failure to start due to voltage conditions, blown fuses, open circuit breakers or other
damages due to the inadequacy or interruption of electrical service.
4. Damage as a result of floods, winds, fires, lightning, accidents, corrosive environments or
other conditions beyond the control of the Manufacturer.
5. Parts not supplied or designated by the Manufacturer, or damages resulting from their use.
6. Manufacturer products installed outside the continental U.S.A., Alaska, Hawaii, and
Canada.
7. Electricity or fuel costs or increases in electricity or fuel costs for any reason whatsoever
including additional or unusual use of supplemental electric heat.
8. ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OR COMMERCIAL
DAMAGE OF ANY NATURE WHATSOEVER. Some states do not allow the exclusion of
incidental or consequential damages, so the above may not apply to you.
This warranty gives you specific legal rights and you may also have other rights which may vary
from state to state.
P/N 88-489 Rev. 2