Carrier PTACSTAT NP HC Thermostat User Manual

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P TA C S TAT --- N P --- H C ,  
P TA C S TAT --- N P --- H P  
Installation Instructions  
Operating Manual  
A07050  
Non --- Programmable Thermostat  
NOTE: Read the entire instruction manual before starting the installation.  
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TABLE OF CONTENTS  
PAGE  
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
INSTALLATION CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Step 1 — Thermostat Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Step 2 — Install Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
Step 3 — Set Thermostat Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Step 4 — Check Thermostat Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
OPERATING THE THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25  
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30  
SAFETY CONSIDERATIONS  
Read and follow manufacturer instructions carefully. Follow all local electrical  
codes during installation. All wiring must conform to local and national electrical  
codes. Improper wiring or installation may damage thermostat.  
Recognize safety information. This is the safety -- alert symbol  
. When you see  
this symbol on the equipment and in the instruction manual, be alert to the  
potential for personal injury.  
Understand the signal words DANGER, WARNING, and CAUTION. These  
words are used with the safety -- alert symbol. DANGER identifies the most  
serious hazards which will result in severe personal injury or death. WARNING  
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signifies a hazard which could result in personal injury or death. CAUTION is  
used to identify unsafe practices which may result in minor personal injury or  
product and property damage. NOTE is used to highlight suggestions which will  
result in enhanced installation, reliability, or operation.  
INTRODUCTION  
Carrier’s PTAC Comfortt Series non -- programmable thermostat is  
a
wall -- mounted, low -- voltage thermostat which maintains room temperature by  
controlling the operation of a heating and/or air conditioning system. Both heat  
pump and air conditioner models are available. A variety of features are provided  
including battery operation, memory in case of power interruption, separate  
heating and cooling setpoints, backlighting, and built -- in installer test.  
This Installation Instruction guide and owners manual covers installation,  
configuration, start up and operation of the PTAC specific Comfort Series line of  
thermostats.  
INSTALLATION CONSIDERATIONS  
Models  
There are two models for the PTAC Comfort Series non -- programmable thermostat,  
AC and HP versions. The model PTACSTAT -- NP -- HC -- x is designed for AC  
systems, controlling one stage of cooling and one stage of heating. It will not operate  
a heat pump. Model PTACSTAT -- NP -- HP -- x is designed for HP systems, controlling  
one stage of cooling and two stages of heating. The HP thermostat model can be  
converted to an AC unit. Select the appropriate model for the intended application.  
Power  
All Comfort Series models are dual powered. They can operate from batteries  
(optional) or 24VAC power. Operation from 24VAC is preferred, if available.  
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Batteries  
Battery operation is available for installations where there is no common (C)  
wire available at the thermostat. For battery operation, install two alkaline AA  
batteries. The thermostat is designed to operate up to one year on a set of  
batteries. A battery indicator on the display warns when battery replacement is  
needed. If batteries are installed and the thermostat is operated from 24VAC  
power, battery operation will occur only when 24VAC power is not present. The  
changeover between 24VAC power and battery power is automatic.  
For HeatCool system, 5 wires are needed for 24VAC operation and 4 wires are  
required for battery operation.  
For HP system, 6 wires are needed for 24VAC operation and 5 wires for battery  
operation.  
When battery operation is used, the C terminal does not need to be connected.  
NOTE: Batteries are not required when there are enough wires for proper  
operation.  
INSTALLATION  
Mounting to a horizontal junction box.  
For those installations requiring it, mounting hole locations for the  
non -- programmable are spaced to fit a horizontal junction box.  
Step 1 — Thermostat Location  
S
Approximately 5 ft (1.5m) from floor.  
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Close to or in a frequently used room, preferably on an inside  
partitioning wall.  
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On a section of wall without pipes or duct work.  
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Thermostat should NOT be mounted  
S
Close to a window, on an outside wall, or next to a door leading to the  
outside.  
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Exposed to direct light or heat from the sun, a lamp, fireplace, or other  
temperature -- radiating objects which could cause a false reading.  
S
S
Close to or in direct airflow from the unit.  
In areas with poor air circulation, such as behind a door or in an  
alcove.  
Step 2 — Install Thermostat  
!
WARNING  
ELECTRICAL OPERATION HAZARD  
Failure to follow this warning could result in personal injury  
or death.  
Before installing thermostat, turn off all power to equipment.  
There may be more than 1 power disconnect. Lock out and  
tag switch with a suitable warning label.  
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2
. Turn OFF all power to unit.  
. If an existing thermostat is being replaced:  
a. Remove existing thermostat from wall.  
b. Disconnect wires from existing thermostat, 1 at a time. Be careful not  
to allow wires to fall back into the wall.  
c. As each wire is disconnected, record wire color and terminal marking.  
d. Discard or recycle old thermostat.  
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!
CAUTION  
ENVIRONMENTAL HAZARD  
Failure to follow this caution may result in environmental  
damage.  
Mercury is a hazardous waste. Federal regulations require that  
Mercury be disposed of properly.  
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. Open thermostat (mounting base) to expose mounting holes. The base  
can be removed to simplify mounting. Press the thumb release at the top  
of the thermostat and snap apart carefully to separate mounting base from  
remainder of thermostat.  
. Route thermostat wires through large hole in mounting base. Level mounting  
base against wall (for aesthetic value only—thermostat need not be level for  
proper operation) and mark wall through 2 mounting holes. See Fig. 1.  
A08093  
Fig. 1 -- Backplate Mounting  
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. Drill two 3/16 -- in. mounting holes in wall where marked.  
. Secure mounting base to wall with 2 anchors and screws provided  
(additional anchoring holes available for more secure mounting, if  
needed) making sure all wires extend through hole in mounting base.  
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. Adjust length and routing of each wire to reach proper terminal and  
connector block on mounting base with 1/4 in. of extra wire. Strip only  
1
/4 in. of insulation from each wire to prevent adjacent wires from  
shorting together when connected. See Fig. 2.  
A08094  
Fig. 2 -- Secure Wires to Terminal Strip  
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. Match and connect wires from the PTAC unit to proper terminals on the ther-  
mostat connector blocks (see Fig. 3). Do not remove factory -- installed jumper  
wire from Rc and Rh terminals. The R wire from the PTAC can be connec-  
ted to either position.  
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PTAC Terminal  
Designations  
C
Gl  
OR  
Gh  
O
Y
W
R
R
W Y O Gh Gl C  
Thermostat Terminal Designations  
Rc - 24 VAC, from cooling equipment  
OR  
or  
Rh - 24 VAC, from heating equipment  
W - Heating  
O/B  
reversing  
C - Common 24 VAC  
G - Fan  
valve  
Not used  
Y - Cooling  
A08092  
Fig. 3 -- Terminal Designations  
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!
CAUTION  
ELECTRICAL OPERATION HAZARD  
Failure to follow this caution may result in equipment damage  
or improper operation.  
Improper wiring or installation may damage the thermostat.  
Check to make sure wiring is correct before proceeding with  
installation or turning on unit.  
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. Push any excess wire into wall and against mounting base. Seal hole in  
wall to prevent air leaks. Leaks can affect operation.  
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0. Snap case back together. Attach thermostat to backplate by inserting tab  
on bottom edge and hinging up until top snap secures. See Fig. 4.  
A08095  
Fig. 4 -- Attach Comfort Series Programmable Thermostat  
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11. Close thermostat assembly making sure pins on back of circuit board  
align with sockets in connector.  
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2. Turn ON power to unit.  
When power is applied, all display icons are lit for 2 seconds to test the display.  
Following this, the equipment type for which the thermostat is configured is  
displayed for an additional 2 seconds. It will be one of PH or PC (if HP, AC, H or C  
is displayed, the thermostat is configured incorrectly to operate a PTAC). See  
explanation under Step 3, Option 01 below. A heat pump thermostat, configured to  
operate a HeatCool unit (see Option 1 below), will display PC. A HeatCool  
thermostat cannot be configured to operate a HeatPump unit.  
NOTE: If a common wire has not been connected, two AA batteries must be  
used to power the thermostat.  
Step 3 — Set Thermostat Configuration  
Configuration options enable the installer to configure the thermostat for a particular  
installation. These must be set correctly to insure proper PTAC operation. Following  
is a list of the options available, an explanation of their function, and their factory  
default settings.  
Configuration Options -- Summary:  
Option 01 -- Equipment type  
Option 03 -- Fahrenheit/Centigrade  
Option 04 -- Unused for PTAC  
Option 07 -- Unused for PTAC  
Option 10 -- Reversing valve (HP only)  
Option 11 -- Minimum deadband between heating and cooling setpoints  
Option 13 -- Room air temperature offset adjustment  
Option 16 -- Maximum cycles per hour  
11  
Option 17 -- Time between equipment stages (HP only)  
Option 18 -- Continuous backlighting (when 24VAC is supplied only)  
Option 26 -- Minimum cooling setpoint  
Option 27 -- Maximum heating setpoint  
Option 39 -- Display setpoint only (or setpoint and room air)  
Option 99 -- Reset to factory defaults  
To Enter the Advanced Configuration Mode:  
Press and hold the FAN key for about 10 seconds until the display changes so  
that only two pairs of digits are showing. The large upper display shows the  
configuration number and the small lower shows the configuration setting.  
Configuration number will be flashing, which means it can be adjusted using the  
UP and DOWN keys. To cause the opposite pair to flash (to be adjustable), press  
the MODE key. Successive presses of the MODE key alternate between the  
configuration number and the configuration setting. To exit the configuration  
mode, press the FAN key. If no key is pressed for 3 minutes, the configuration  
mode will automatically exit, returning the thermostat to normal operation (all  
previous changes will be saved).  
Configuration Options - Selection:  
Option 01 -- Equipment type  
A PTAC HeatPump thermostat (PTACSTAT -- NP -- HP -- x), valid selections are PH  
or PC -- Default is PH.  
A PTAC HeatCool thermostat (PTACSTAT -- NP -- AC -- x), the only valid selection  
is PC -- Default is PC.  
Other selections are available, HP (HeatPump stat only), AC, H or C, but should  
not be used as they will not operate your PTAC correctly.  
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2
Meanings:  
PC or PH selects PTAC units (Packaged Terminal Air Conditioners).  
PH controls a PTAC with 1 speed heat pump with 1 stage of aux heat.  
PC controls a PTAC with 1 speed air conditioner with 1 stage of E1 heat.  
NOTE: A PH thermostat can be converted to control a HeatCool system.  
Option 03 -- Fahrenheit/Centigrade  
Selects temperature measurement units.  
Selections:  
F = Fahrenheit  
C = Centigrade  
Default is Fahrenheit  
Option 04 -- Not used on a PTAC system  
Default = OF  
Option 07 -- Not used on a PTAC system  
Default = OF  
Option 10 -- Reversing valve (HP only)  
This selection is only available on heat pump systems. “O/B” terminal can be  
configured to be energized in either heating mode or in cooling mode, depending  
on heat pump operation.  
C — Thermostat output (O/B) will have 24VAC in cooling mode, 0VAC in  
heating mode.  
H — Thermostat output (O/B) will have 0VAC in cooling mode, 24VAC in  
heating mode.  
Default is C for PTAC.  
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3
Option 11 -- Minimum Deadband Between Heating And Cooling  
Selections:  
0
1 through 06 — Default is 02.  
Sets the minimum allowable number of degrees between heating and cooling  
setpoints. One setpoint will “push” the other to maintain this difference.  
Option 13 -- Room Air Temperature Offset  
Selections:  
-- 5 to 5_ F — Default is 0.  
This option selects the number of degrees F to be added to the displayed  
temperature to calibrate or deliberately miscalibrate the measured room  
temperature.  
Option 16 -- Maximum Cycles Per Hour  
Selections:  
2
, 4, or 6 — Default is 4.  
The maximum cycle rate is limited by internal timers to the selected number of  
cycles per hour. Selection of a higher number causes faster cycling, resulting in  
more constant room temperature.  
Based on the selection of 2, 4, or 6 cycles per hour, a timer is set to 30, 15, or 10  
minutes. This much time must elapse from the start of one cycle before another  
cycle can start. For testing, it can be defeated for one cycle by simultaneously  
pressing the FAN and UP keys.  
If the cycle timer is preventing the equipment from turning on, the display icons  
that show the equipment is operating will be flashing to indicate a turn -- on delay  
is present.  
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4
Option 17 -- Minimum Time Between Equipment Stages (HP only)  
Selections:  
1
0, 15, 20, 25 minutes — Default is 15.  
When there are two stages of heat available, this is the amount of time the first  
stage must operate before the second stage can turn on. With heat pumps, longer  
times can reduce the amount of auxiliary heat used. Not available with AC  
thermostats.  
Option 18 -- Backlight Configuration  
Selections:  
ON, OF — Default is OF.  
When ON is selected and the thermostat is not battery operated, a low level  
continuous display backlight is always on. With OF selected, the backlight is  
only on for a short time after a key is pressed.  
NOTE: Continuous backlight is not available with battery operation.  
Option 26 -- Minimum Cooling Setpoint  
Selections:  
5
2_ to 90_F — Default is 62_F.  
Sets the lowest cooling setpoint available to the user.  
Option 27 -- Maximum Heating Setpoint  
Selections:  
5
0_F to 88_F — Default is 83_F.  
Sets the highest heating setpoint available to the user.  
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5
Option 39 -- Display Setpoint Only or Setpoint and Room Temperature  
This configuration option determines what the display on the thermostat will  
look like.  
Selections:  
SP — Will display the setpoint only.  
rt — Will display the setpoint and room air temperature  
Default = SP  
Option 99 -- Reset to Factory Defaults  
Selection:  
See below — There is no default.  
Use this capability to reset the thermostat to “out of the box” conditions.  
NOTE: All previous configuration settings will be lost!  
When this option is selected, the configuration number (99), will appear on the  
large upper display and 10 will appear on the lower. To perform the reset, first  
use the MODE key to make the 10 flash. Then press and hold the DOWN key.  
The 10 will start counting down toward zero. If the DOWN key is kept pressed  
until the count reaches zero, the reset will be performed. If the DOWN key is  
released early, the number will return to 10 and the reset will not occur.  
Step 4 — Check Thermostat Operation  
The PTAC Comfort Series non -- programmable thermostat has a built -- in installer  
test capability. Use it to check thermostat and equipment operation without  
delays or setpoint adjustments to force heating or cooling.  
NOTE: Any time delays or protections built into the equipment will still be  
active.  
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To enter the Installer Test mode, use the same process as is used to enter Installer  
Configuration, only hold the FAN key longer. More specifically, press and hold  
the FAN for about 15 seconds until the display reads In on the left and S in the  
smaller display. The MODE will be OFF. The MODE key (upper left) can now  
be used to select heat, cool, or emergency heat (HP only). Selecting one of the  
available modes will immediately command the equipment to turn on in that  
mode. The request will stay active for 3 minutes and then return the mode to off.  
With HeatPump thermostats (having 2 stages of heating), the request will be  
active for 3 minutes on each stage.  
Changing the mode to OFF will terminate any running test immediately.  
During any test, the display icons will be displayed the same as for normal  
operation of that stage, as follows:  
SELECTED MODE  
DISPLAY ICONS  
off  
off  
cool  
cool on  
heat  
heat on, aux heat on  
aux heat on  
Em Heat (HP only)  
To terminate the Installer Test mode, press the up or down temperature buttons.  
If the thermostat is left in Installer Test mode, it will revert back to normal  
operation after 15 minutes.  
Checklist  
1
2
3
. Run equipment through several heating and cooling cycles to ensure  
proper operation.  
. If the equipment is to be left in operation, setpoints and operating mode  
must be properly selected.  
. Put away tools and instruments and clean up debris.  
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OPERATING THE THERMOSTAT  
NOTE: Should the thermostat lose power, it will turn back on with the last  
settings prior to the power outage.  
Button Identification  
A08088  
Fig. 5 -- Button Identification  
a -- FAN Selects whether the fan operates continuously (on) or in cycle mode  
(auto)  
b -- MODE Selects whether thermostat is set for heating, cooling, emergency  
heat (heat pump system only) or off  
c -- UP Increases the temperature (or adjusts the screen selection up when setting  
advanced programming features)  
d -- DOWN Decreases the temperature (or adjusts the screen selection down  
when setting advanced programming features)  
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Display backlighting  
The display has two levels of lighting, high level and continuous low level. High  
level lighting comes on for 10 seconds any time a button is pressed. Continuous  
low level lighting is only available if the thermostat is operated from 24VAC. It  
is not available with batteries. Continuous low level backlighting is a  
configurable option (see configuration settings above).  
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7
5
8
4
3
2
9
1
0
1
11  
2
1
A08089  
Fig. 6 -- On screen indicators  
On-Screen Indicators  
1
2
3
Fan mode -- on or auto  
Thermostat mode is off  
Current Setpoint or Room temperature (if configured to display room temp)  
1
9
4
5
6
7
8
9
1
1
1
Thermostat mode is Cool  
Thermostat mode is Heat  
Thermostat mode is emergency heat  
Fahrenheit  
Celsius  
Battery strength indicator  
0
1
2
Aux Heat is On  
Compressor is On (if flashing, it is waiting to come on)  
Current setpoint (if configured to display room temp)  
Setting the temperatures for heating and cooling  
Your thermostat is installed with the heating set at 68_F and the cooling set at  
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2_F. You can use these or change them so your room is as warm or as cool as  
you would like it to be. These steps will hold the temperature where you set it.  
1
2
3
4
. To change the heating temperature, press the mode button on the left until  
the screen says heat.  
. Press the up or down button located on the right side of the display until  
you reach the desired temperature.  
. To change the cooling temperature, press the mode button on the left until  
the screen says cool.  
. Press the up or down button located on the right side of the display until  
you reach the desired temperature.  
Using the fan  
When the fan is on, it helps distribute air for a more even temperature in all  
spaces. You can set the thermostat so the fan runs continuously (on) or only  
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0
during your heating and cooling cycles (auto mode, sometimes known as cycle  
mode).  
The thermostat is set at the factory to run automatically as needed (auto). Here’s  
how to change the setting so it runs continuously.  
1
. Press the fan button on the left. The display message will change from  
auto fan to fan on.  
2
. To return the fan to auto mode, press the fan button again. You will see  
fan auto on the display.  
Using emergency heat (heat pump units only)  
Emergency heat is useful when the automatic auxiliary heat system can’t keep up  
with demand. (Units with heat pumps use “auxiliary heat” when it’s too cold  
outside for the heat pump to heat the space. The display indicator for this is aux  
heat on.)  
Here’s how to set your thermostat to use emergency heat.  
1
. Press the mode button repeatedly until you see Em heat in the upper left  
of the display.  
2
. To turn off emergency heat, press the mode button again to select heat,  
cool or off.  
Turn the unit off  
To use the thermostat to turn off the heating and cooling system, press the mode  
button on the left repeatedly until the display shows off in the upper left.  
Installing or replacing the batteries  
NOTE: Remember, batteries are only required if there are not enough wires to  
connect a common wire.  
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1
Two AA batteries should last about one year. When the batteries have lost about  
one -- third of their power, a battery icon appears on the display (two -- thirds of it  
will be black). As the batteries get weaker, the icon goes down to one black bar  
and then none. When the icon is empty, you will begin to lose thermostat  
functions. We recommend that you replace the batteries at the one bar level with  
two AA alkaline batteries.  
They are located in the back of the thermostat, so you’ll have to remove it from  
the wall. Here’s how to replace batteries:  
1
2
3
. Locate the latch at the top of the thermostat. It’s at the center of the top  
rim.  
. Press it down. This will disconnect the thermostat from the top of the wall  
plate.  
. Remove the thermostat from the wall bracket completely by bringing it  
slightly toward you and lifting it up and off the lip on the lower edge of  
the wall bracket.  
4
5
. You will see the batteries in the lower right corner. Replace the batteries  
with two AA alkaline batteries.  
. Put the thermostat back on the wall bracket by lining up the slot on the  
bottom edge of the back of the thermostat with the lip on the wall bracket.  
You will feel the slot fit over the lip.  
6
7
. With the bottom of the thermostat attached to the bottom of the wall  
bracket, bring the thermostat back to the wall. Line up the latch at the top  
of the thermostat with the corresponding lip on the wall bracket.  
. Lightly push the thermostat toward the wall. When the latch and lip are  
lined up properly, you will hear the thermostat snap into place.  
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TROUBLE SHOOTING YOUR THERMOSTAT  
What if...  
The battery icon is displayed  
The battery icon appears on the display only when the battery starts to lose  
power. Replace it when one -- third of the icon is black. If your thermostat is  
battery powered and you wait until the icon is just a silhouette with no black  
bars, you will slowly lose thermostat functions until it doesn’t work at all.  
Aux heat on” is displayed (heat pump systems only)  
Aux heat on is auxiliary heat. It applies only to the heat pump version. When it is  
displayed, it means the unit is heating with the electric heater. This can happen  
manually by setting the mode to Em Heat or automatically, if the unit can not  
keep up with demand running in heat pump mode.  
There is a power outage  
If you lose electricity and have batteries installed, the thermostat will continue to  
display the indoor temperature because it has a battery backup power source.  
This means that even though your heating and cooling system doesn’t work, you  
will still be able to monitor the room temperature.  
NOTE: With or without batteries, any previous changes to the settings will be  
saved when there is a power outage.  
My Heat Pump unit is operating in cooling when it should be heating  
Most likely, the reversing valve is setup wrong in the advanced configuration.  
Check reversing valve option above in the configuration setup.  
My Thermostat does not show room temperature  
There is an option in the advanced configuration setup to display set point and  
room temperature. Check the configuration setup above.  
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There are icons flashing on the thermostat display  
There are several internal timers which influence the thermostat’s operation. If a  
timer is preventing the equipment from turning on, the display icons which show  
the equipment is operating, will be flashing to indicate a turn -- on delay is present.  
You get a system error message  
Here are the possible system error messages and what they mean:  
-- -- The room air sensor reports that the room air temperature is above 150_F or  
below -- 50_F.  
E4 The memory has failed and the thermostat will return to the factory settings.  
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href="
THERMOSTAT LIMITED WARRANTY  
FOR WARRANTY SERVICE OR REPAIR, YOU MUST  
FOLLOW THESE STEPS IN ORDER:  
FIRST:  
Contact the installer.  
SECOND: Contact the nearest distributor. (See telephone yellow pages.)  
THIRD: Contact:  
Carrier Corporation  
PTAC Consumer Relations  
P.O. Box 4808  
Syracuse, New York 13221  
Phone: 1 -- 800 -- 894 -- 6449  
Model No.  
Unit Serial No.  
Date of Installation  
Installed by  
Name of Owner  
Address of Installation  
2
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LIMITED WARRANTY for THERMOSTAT  
Carrier Corporation (hereinafter “Company”) warrants this product against  
failure due to defect in material and workmanship under normal use and  
maintenance as follows. If a part fails due to defect within five (5) years from the  
date of purchase, Company will provide only a new or remanufactured part, at  
Company’s sole option, to replace any defective part without charge for the part.  
This limited warranty is subject to the provisions, conditions, limitations, and  
exclusions listed below and on the reverse (if any) of this document.  
LEGAL REMEDIES -- The owner must notify the Company in writing, by  
certified or registered letter to Carrier Corporation, PTAC Consumer Relations,  
P.O. Box 4808, Syracuse, New York 13221, of any defect or complaint with the  
product, stating the defect or complaint and a specific request for repair,  
replacement, or other correction of the product under warranty, mailed at least  
thirty (30) days before pursuing any legal rights or remedies.  
WARRANTY CONDITIONS:  
1
. The warranty applies only to products remaining in their original  
installation location.  
2
. Installation, use, care, and maintenance must be normal and in accordance  
with instructions contained in the Operator’s Manual and Company’s  
service information.  
3
4
. Defective parts must be returned to the distributor through a registered  
servicing dealer for credit.  
. Where a product is installed in a new residence, the date of purchase is the  
date the homeowner purchased his or her residence.  
2
6
href="
5
. If the date of original purchase cannot be verified, then the warranty  
period begins ninety (90) days from the date of product manufacture (as  
indicated by the model and serial number).  
LIMITATIONS OF WARRANTIES: ALL IMPLIED WARRANTIES AND/OR  
CONDITIONS (INCLUDING IMPLIED WARRANTIES OR CONDITIONS  
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE OR  
PURPOSE) ARE LIMITED TO THE DURATION OF THIS LIMITED  
WARRANTY. SOME STATES OR PROVINCES DO NOT ALLOW  
LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY OR  
CONDITION LASTS, SO THE ABOVE MAY NOT APPLY TO YOU. THE  
EXPRESS WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE  
AND MAY NOT BE ALTERED, ENLARGED, OR CHANGED BY ANY  
DISTRIBUTOR, DEALER, OR OTHER PERSON, WHATSOEVER.  
THIS WARRANTY DOES NOT COVER:  
1
2
. 1. Any product ordered over the Internet.  
. Any product not installed by a licensed or otherwise qualified HVAC  
technician.  
3
4
5
. Labor or other costs incurred for diagnosing, repairing, removing,  
installing, shipping, servicing or handling of either defective parts or  
replacement parts, or new units.  
. Normal maintenance as outlined in the installation and servicing  
instructions or Operator’s Manual, including filter cleaning and/or  
replacement and lubrication.  
. Damage or repairs from faulty installation, misapplication, abuse,  
improper servicing, unauthorized alteration or improper operation.  
2
7
6
. Failure to start due to voltage conditions, blown fuses, open circuit  
breakers, or damages due to the inadequacy or interruption of electrical  
service.  
7
8
9
. Damage as a result of floods, winds, fires, lightning, accidents, corrosive  
environments or other conditions beyond the control of Company.  
. Parts not supplied or designated by Company, or damages resulting from  
their use.  
. Products installed outside the U.S.A. or its territories and Canada.  
1
0. Electricity or fuel costs, or increases in electricity or fuel costs from any  
reason whatsoever, including additional or unusual use of supplemental  
electric heat.  
1
1. ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OR  
COMMERCIAL DAMAGE OF ANY NATURE WHATSOEVER.  
Some states and provinces do not allow the exclusion of incidental or  
consequential damages, so the above limitation may not apply to you.  
This Warranty gives you specific legal rights, and you may also have other rights  
which vary from state to state or province to province.  
2
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href="
Table 1 shows the thermostat outputs for each available stage of heating or  
cooling. It may be useful in checkout or troubleshooting.  
Table 1 – Outputs  
EQUIPMENT  
CONFIGURATION OPTION #1  
COOL  
STAGE 1  
HEAT  
STAGE 1  
HEAT  
STAGE 2  
EM HEAT  
PC  
Y, G  
W
--- ---  
--- ---  
W
PH  
Y, G , O/ B  
Y, G  
Y, G , W  
RVS = C (O)  
PH  
Y, G  
Y, G , O/ B  
Y, G , W, O/ B  
W
RVS = H (B)  
--- PTAC  
2
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href="
WIRING DIAGRAMS  
Thermostat  
52MPTAC  
W
W
Y
G
GL or GH  
R
Rh  
Rc  
or  
C
COM  
A08096  
Fig. 7 -- A/C Thermostat Typical Installation  
Thermostat  
52MPTAC  
Reversing Valve  
Heat  
O/B  
W
O
W
Cool  
Fan  
Y
G
Y
GL or GH  
R
2
4VAC Heating  
Rh  
Rc  
2
4VAC Cooling  
or  
Common  
C
COM  
A08097  
Fig. 8 -- HP Thermostat Typical Installation  
3
0
THERMOSTAT CONFIGURATION RECORD  
Configuration Options  
Option 01  
Option 03  
Option 04  
Option 07  
Option 10  
Option 11  
Option 13  
Option 16  
Option 17  
Option 18  
Option 26  
Option 27  
Option 39  
Option 99  
____ Equipment Type  
____ Fahrenheit/Centigrade Selection  
____ Unused for PTAC  
____ Unused for PTAC  
____ Reversing Valve  
____ Minimum Deadband Between Heating and Cooling Setpoints  
____ Room Air Temperature Offset Adjustment  
____ Cycles Per Hour  
____ Time Between Equipment Stages  
____ Backlight Configuration  
____ Minimum Cooling Setpoint  
____ Maximum Heating Setpoint  
____ Display Setpoint Only or Setpoint and Room Temperature  
____ Reset to Factory Default Settings  
See configuration descriptions in Configuration Options -- Selection section of  
manual.  
3
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href="
Copyright 2008 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231  
Printed in U.S.A. Edition Date: 03/08  
C a t a l o g N o : P T A C S T A T --- N P --- 0 1 S I  
Manufacturer reserves the right to change, at any time, specifications  
and designs without notice and without obligations.  
Replaces: NEW  
3
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