TOTALINE P474-0140 User manual

OWNER'S MANUAL
MODEL P474-0140
Non-Programmable
Digital Thermostat
TOTALINE
Star
Replacement Components Division - Carrier Corporation
HEAT PUMP THERMOSTAT
2 HEAT, 1 COOL
Millivolt Compatible
Battery or System
Powered
Digital Display
DC Voltage Compatible
Stages: 2-Heat, 1-Cool
Easy Operation
TOTALINE
emergency
normal
energy save
aux.
heat
72
Heat Off
Cool Fan On
Fan Auto

Page 2
Normal Operation
Safety Warnings
Front Panel
Display
Aux Heat
Preparation
Remove Old Thermostat
Battery Replacement
Wire Connections
Test Operation
Troubleshooting
Warranty
Contents Page #
OWNER'S MANUAL
MODEL P474-0140

CAUTION Follow Installation Instructions carefully.
DISCONNECT POWER TO THE HEATER -
AIR CONDITIONER BEFORE REMOVING
THE OLD THERMOSTAT AND INSTALLING
THE NEW THERMOSTAT.
WARNING
P/N P474-0140
Page 3
CAUTION
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.
FIG. 1
The two AA alkaline batteries must be replaced at least
once every 12 months to ensure proper
operation. The Low Battery icon (fig. 1) will
appear on the display when it is time to
replace the batteries. If the thermostat is
connected to 24v power, the batteries should
still be installed, but are not required.
When is displayed the batteries must be replaced
immediately. The manufacturer cannot be liable for
improper operation of the thermostat if the batteries are
not immediately replaced.
Annual battery replacement is especially critical in
locations subject to freezing temperatures. The
thermostat will be unable to turn on the heating system
if the batteries are exhausted.
OWNER'S MANUAL
MODEL P474-0140
Safety Warnings
Replacement Components Division Carrier Corporation 03/07

TOTALINE
emergency
normal
energy save
aux.
heat
72
Heat Off
Cool Fan On
Fan Auto
Page 4
On or Auto
FAN SWITCH
UP & DOWN
BUTTONS
MODE SWITCH
Heat, Off or Cool
AUX HEAT
INDICATOR
AUX HEAT
SWITCH
DISPLAY
DIGITAL THERMOSTAT
Emergency
Normal
Lockout
OWNER'S MANUAL
MODEL P474-0140
Front Panel

DIGITAL THERMOSTAT
Page 5
Page 5
78 74
SET TEMP
OWNER'S MANUAL
MODEL P474-0140
Display
Current room temperature.
If the UP or DOWN button is pressed the thermostat
will show the Set Temp indicator. When Set Temp is
displayed you may use the UP or DOWN button to
adjust the desired room temperature.
NOTE: After five seconds with no button presses the
thermostat will revert back to show the current
room temperature.

TOTALINE
emergency
normal
energy save
aux.
heat
72
Heat Off
Cool Fan On
Fan Auto
Page 6
On or Auto
FAN SWITCH
UP & DOWN
BUTTONS
MODE SWITCH
Heat, Off or Cool
OWNER'S MANUAL
DIGITAL THERMOSTAT
OWNER'S MANUAL
MODEL P474-0140
Operation
Select Heat or Cool with the Mode Switch.
Normally leave the fan switched to Fan Auto.
In Fan Auto, the fan will turn on only with a heat
or cool demand. When Fan On is selected, the
fan will run continuously.
Adjust the desired set temperature with the
UP and DOWN buttons.
Normal Operation

TOTALINE
emergency
normal
energy save
aux.
heat
72
Heat Off
Cool Fan On
Fan Auto
AUX HEAT
SWITCH
Emergency
Normal
Energy Save
Operation
Switch
Emergency - Disables all compressor
functions** and energizes only Aux
Heat to satisfy the heat demand.
Normal - Aux Heat is allowed to run, if necessary,
along with the heat pump to satisfy the
heat demand.
Energy Save - Aux Heat will never turn on
regardless of the heat demand.
Aux Heat Indicator - This LED
will illuminate when the
thermostat has energized
Aux Heat.* (W2 terminal)
*The LED will only turn on when the
thermostat is powered from the HVAC
System. The cost of operating Electric
Strip Heat (Aux Heat) is normally signi-
ficantly more expensive than the cost of
operating Heat Pump.
OWNER'S MANUAL
MODEL P474-0140
Aux Heat
When the Aux Heat Switch is in the Emergency position the compressor will also
be locked out during cooling operation.
*
Page 7
*

Page 8
These tools will be required:
Flat Blade
Screwdriver
Wire cutter
& Stripper
Make sure your Heat Pump is working
properly before beginning installation of
the thermostat.
Carefully unpack the thermostat.
Save the screws and instructions.
Turn off the power to the Heat Pump at
the main fuse panel.
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.
Step #1 Preparation
72
TOTALINE
Heat Off Cool FanOn
FanAuto
72
TOTALINE
Heat Off Cool FanOn
FanAuto
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TOTALINE
Heat Off Cool FanOn
FanAuto
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TOTALINE
Heat Off Cool FanOn
FanAuto
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TOTALINE
Heat Off Cool FanOn
FanAuto
OWNER'S MANUAL
MODEL P474-0140
Preparation

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 9
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TOTALINE
Heat Off Cool FanOn
FanAuto
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TOTALINE
Heat Off Cool FanOn
FanAuto
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TOTALINE
Heat Off Cool FanOn
FanAuto
72
TOTALINE
Heat Off Cool FanOn
FanAuto
OWNER'S MANUAL
MODEL P474-0140
Remove & Replace
Old Thermostat

The batteries must be replaced
immediately when the thermostat
displays the low battery icon (fig.1). FIG. 1
Battery Replacement
The top of the thermostat housing has two screw-
driver slots to assist in separating the
thermostat front from the sub-base.
Repeat this procedure in the other screw driver slot.
Separate the thermostat front from the sub-base by
pulling the top forward until the pins release, and then
lift the bottom out.
To pull the housing apart, insert a small blade screw-
driver into the slot and rotate 90 . This will release
the top housing snaps.
SCREWDRIVER
SLOTS
Next Page
Page 10
MODEL P474-0140
OWNER'S MANUAL

Remove the old batteries and replace with new AA
alkaline batteries at least once every year or when
the low battery icon appears (pages 3 and 10).
Battery Replacement
If the thermostat is connected to 24v power, the
batteries should still be installed.
Page 11
USE “AA” SIZE
ALKALINE BATTERIES USE “AA” SIZE ALKALINE BATTERIES
POSITION BATTERIES AS SHOWN
OWNER'S MANUAL
MODEL P474-0140

Page 12
72
TOTALINE
Heat Off Cool FanOn
FanAuto
A label is provided on the backplate
that prevents drafts originating inside
the wall from entering the thermostat.
These drafts, left unchecked, may
cause incorrect room temperature
readings.
Please do not remove this label
from the thermostat. Insert the wires
through the slots provided in the label
as shown in Fig. 1
Thermal Insulating Sheet
Fig. 1
Wire Slots
4Z95
MODEL: P474-0140
97061606
MADE IN CHINA
USE SIZE “AA”
ALKALINE BATTERIES
W2
Y
B
O
G
R
C
OWNER'S MANUAL
MODEL P474-0140
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
CCommon C (optional)
Y1 or Y Cooling Y
W1, W or H Auxiliary Heat W2
(Energize to Heat)
BRev. Valve B
Rc, R, M, Vr, A Power R
ORev. Valve O
(Energize to Cool)
G or F Fan G

Page 13
*
FAN
REVERSING VALVE
POWER
YGRO
5 Conductor 18 to 22 gauge
unshielded cable from the
thermostat to the equipment.
W2
Y
B
O
G
R
C
COMPRESSOR
Common wire optional*
W2
ELECTRIC HEAT
OWNER'S MANUAL
MODEL P474-0140
Sample Wiring Diagrams
5 Wire, 1 Stage Cooling, 2 Stage Heat, Heat Pump with O reversing valve.
Residential Heat Pumps, split systems & package units, with auxiliary heat.
Common wire is optional in all installations. If a common wire is not used the
thermostat must be powered by two AA alkaline batteries. These batteries
must be replaced (page 10) each year or when the Low Battery indicator is displayed
(page 3).

Page 14
FAN
REVERSING VALVE
POWER
YGRO
4 Conductor 18 to 22 gauge
unshielded cable from the
thermostat to the equipment.
Y
B
O
G
R
C
COMPRESSOR
*
Common wire optional*
W2
OWNER'S MANUAL
MODEL P474-0140
Sample Wiring Diagrams
4 Wire, 1 Stage Cooling, 1 Stage Heat, Heat Pump with O reversing valve.
Residential Heat Pumps, split systems & package units, with no auxiliary heat.
Common wire is optional in all installations. If a common wire is not used the
thermostat must be powered by two AA alkaline batteries. These batteries
must be replaced (page 10) each year or when the Low Battery indicator is displayed
(page 3).

Page 15
*
FAN
REVERSING VALVE
POWER
YGRB
4 Conductor 18 to 22 gauge
unshielded cable from the
thermostat to the equipment.
Y
B
O
G
R
C
COMPRESSOR
Common wire optional*
W2
OWNER'S MANUAL
MODEL P474-0140
Sample Wiring Diagrams
4 Wire, 1 Stage Cooling, 1 Stage Heat, Heat Pump with B reversing valve.
Residential Heat Pumps, split systems & package units, with no auxiliary heat.
Common wire is optional in all installations. If a common wire is not used the
thermostat must be powered by two AA alkaline batteries. These batteries
must be replaced (page 10) each year or when the Low Battery indicator is displayed
(page 3).

Page 16
*
FAN
REVERSING VALVE
POWER
YGRB
5 Conductor 18 to 22 gauge
unshielded cable from the
thermostat to the equipment.
Y
B
O
G
R
C
COMPRESSOR
Common wire optional*
W2
ELECTRIC HEAT
W2
OWNER'S MANUAL
MODEL P474-0140
Sample Wiring Diagrams
5 Wire, 1 Stage Cooling, 2 Stage Heat, Heat Pump with B reversing valve.
Residential Heat Pumps, split systems & package units, with auxiliary heat.
Common wire is optional in all installations. If a common wire is not used the
thermostat must be powered by two AA alkaline batteries. These batteries
must be replaced (page 10) each year or when the Low Battery indicator is displayed
(page 3).

Page 17
72
TOTALINE
Heat Off Cool FanOn
FanAuto
72
TOTALINE
Heat Off Cool FanOn
FanAuto
OWNER'S MANUAL
MODEL P474-0140
Test Operation
Turn on the power to the Heat Pump.
On the thermostat, slide the Mode Switch
to HEAT. Press the UP or DOWN button
until the set temperature is 10 degrees above
room temperature. The HVAC unit should
energize in the heating mode. Note: You
may need to wait up to five minutes for
heating to energize due to the compressor
lockout feature. There is a two minute min-
imum run-time for first stage heating.
On the thermostat, slide the Aux Heat
Switch to the NORMAL position. If the
thermostat is system powered the Aux Heat
indicator will illuminate indicating that the
thermostat has energized Aux Heat (page 7).
TWO STAGE OPERATION - The 2nd stage
of heat (auxiliary heat) is turned on when
the room temperature is equal to or less
than: the setpoint minus the 1st stage
deadband (one degree, non-adjustable),
minus the 2nd stage deadband (two
degrees, non-adjustable).
Heat or Cool
Setpoint
Deadband Deadband
db 1db 2
1st Stage
turn on
2nd Stage
turn on
Heating
(non-adj. 2 )
Deadband
db 1
1st Stage
turn on
Cooling
(non-adj. 1 ) (non-adj. 1 )
72
TOTALINE
Heat Off Cool FanOn
FanAuto

Page 18
72
TOTALINE
Heat Off Cool FanOn
FanAuto
72
TOTALINE
Heat Off Cool FanOn
FanAuto
OWNER'S MANUAL
MODEL P474-0140
Test Operation
On the thermostat, slide the Mode Switch
to COOL. Press the UP or DOWN button
until the set temperature is 10 degrees below
room temperature. The HVAC unit should
energize in the cooling mode (Page 6).
Note: You may need to wait up to five minutes
for cooling to energize due to the compressor
lockout feature.
On the thermostat, slide the Mode Switch to
OFF, then slide the Fan Switch to Fan On.
The fan should turn on and run continuously
(Page 6).

Page 19
OWNER'S MANUAL
MODEL P474-0140
72
TOTALINE
Heat Off Cool FanOn
FanAuto
72
TOTALINE
Heat Off Cool FanOn
FanAuto
TroubleShooting
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TOTALINE
Heat Off Cool FanOn
FanAuto
SYMPTOM: The Air Conditioning does not
attempt to turn on.
CAUSE: The cooling setpoint is set too
high, the Mode Switch is not set for
Cool, the batteries are too weak, or the
Aux. Heat Switch is set for Emergency.
REMEDY: Consult the Normal Operation
section in this manual to:
Lower the cooling setpoint (Page 6)
Correct the Mode Switch position (Page 6)
Replace the batteries (Page 10)
Adjust the Aux Switch to Normal (page 7)
SYMPTOM: The slide switches on the thermostat
are very difficult to move.
CAUSE: The backplate of the thermostat is
screwed too tightly into a wall that is not
perfectly flat.
REMEDY: Loosen the screws holding the
thermostat into the wall.
SYMPTOM: The fan does not turn on even though
the compressor has energized.
CAUSE: The Fan Switch is not completely in the
On or Auto position.
REMEDY: Slide the Fan Switch firmly into the On
or Auto position.

Page 20
P/N 88-419
Rev. 2
C
c
F
FOR HOME OR OFFICE USE
Tested to Comply
with FCC Standards
Battery Stat P/N P474-0140
4Z95
72
TOTALINE
Heat Off Cool FanOn
FanAuto
OWNER'S MANUAL
MODEL P474-0140
TroubleShooting
SYMPTOM: Aux Heat does not turn on.
CAUSE: The Aux Heat Switch is set for
Lockout.
REMEDY: Consult the Aux Heat section
of this manual to slide the Aux
Heat Switch to Normal (Page 7).
SYMPTOM: The Heating does not attempt
to turn on.
CAUSE: The heating setpoint is set too
high, the Mode Switch is not set for
Heat, the batteries are too weak, or the
Aux Heat Switch is set for Emergency.
REMEDY: Consult the Normal Operation
section in this manual to:
Raise the heating setpoint (Page 6)
Correct the Mode Switch position
(Page 6)
Replace the batteries (Page 11)
Adjust the Aux Switch to Normal (Page 7)
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TOTALINE
Heat Off Cool FanOn
FanAuto