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ADEMCO 4500  
Thermostat  
User Guide  
N7972V1 5/05 Rev. A  
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TABLE OF CONTENTS  
About the 4500 Thermostat...........................................................................................1  
Saving Money on Energy Bills.................................................................................1  
The 4500 Thermostat Provides Comfort and Convenience ....................................1  
How the 4500 Thermostat Works with Your Present Thermostat ..............................2  
Front Panel Controls and Indicator ..............................................................................3  
Product Specifications ...................................................................................................4  
Controlling the 4500 thermostat by Phone...................................................................5  
To Enter the Thermostat Mode Menu by Phone.....................................................5  
Adjusting the Set-Back Temperature of the 4500 thermostat ....................................6  
Turning the Set-Back On and Off .................................................................................8  
Using Two 4500 Thermostats with Your System.........................................................9  
When Leaving Protected Premises for Extended Periods ..........................................10  
Testing the Heating/Cooling System...........................................................................11  
Testing the Pre-existing Thermostat ..........................................................................12  
Federal Communications Commission (FCC) Part 15 Statement .............................13  
Limited Warranty........................................................................................................14  
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About the 4500 Thermostat  
The Ademco 4500 thermostat provides control for both heat and air  
conditioning. It is intended for use with Ademco security systems  
that include the enhanced 4286 phone module. You can set the 4500  
thermostat using any Touch-tone phone, either on premises or  
remotely. The 4500 thermostat is not a replacement for the existing  
thermostat, which remains in the installation, but can be selected to  
provide a “set-back” function whenever the system is in the ARMED  
AWAY mode. The existing thermostat controls premises temperature  
while the security system is DISARMED, or in ARMED STAY mode.  
Saving Money on Energy Bills  
An important benefit of combined climate control and security is  
potential energy cost savings. During the heating season, you can  
“set-back” the 4500 thermostat for times when you are away from  
home by putting the security system in the ARMED AWAY mode.  
Our set-back feature lets you turn down the thermostat when the  
house is empty automatically, when you arm the security system in  
the ARMED AWAY mode.  
During the cooling season, you can set the 4500 thermostat for a  
higher temperature than the existing thermostat for times when you  
are away from home, to save on cooling costs by putting the security  
system in the ARMED AWAY mode.  
In both cases you can call home to adjust the set-back temperature  
that is in effect while the system is in the armed away mode.  
The 4500 Thermostat Provides Comfort and Convenience  
Heat or air conditioning in vacation homes can be remotely set and  
monitored by phone. For example, heat can be turned up at a ski  
cabin before guests arrive. The owner can also call-in to the system to  
check that the indoor temperature is being maintained while the  
premises are vacant. Users can set the air conditioning by calling  
home just before leaving work. Once access to the security system  
has been established, the ambient temperature will automatically be  
announced if the installer has programmed this function. The  
following sections describe how to use the 4500 thermostat.  
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How the 4500 Thermostat Works With Your  
Present Thermostat  
The 4500 thermostat works in combination with the original  
thermostat installed on the premises.  
While the premises is occupied, the security system is usually armed  
STAY or DISARMED, and the 4500 thermostat will be inactive. The  
original thermostat can be used as usual to set and adjust your  
premises temperature.  
When controlling a heating system, the set-back temperature setting  
of the 4500 thermostat must always be set to a lower temperature  
than the original thermostat. This way, the 4500 thermostat will  
turn down the heat when the security system is ARMED AWAY.  
Alternately, when controlling an air conditioning system, the set-back  
temperature setting of the 4500 thermostat must always be set to a  
higher temperature than the original thermostat. This way, the 4500  
thermostat will allow the ambient temperature to rise when the  
security system is ARMED AWAY.  
If the pre-existing thermostat has a built-in clock and schedule, the  
schedule can be used to set the times you “wake,” “leave,” “return,”  
and “sleep.”  
Note: The “leave” time should be set for the latest time that you  
would expect to leave the premises. The “return” time should be set  
to the earliest time you expect to arrive at the premises. If you leave  
earlier or return later than scheduled times, the 4500 thermostat will  
adjust the temperatures accordingly.  
In summary, the 4500 thermostat allows you to:  
Set back the temperature (to that set in the 4500 thermostat)  
automatically by arming in the AWAY mode when leaving home.  
Resume normal temperature (as set by the existing thermostat)  
automatically by DISARMING the system when returning home.  
Check the temperature by phoning in from a remote location.  
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Front Panel Controls  
As you can see from Figure 1 below, there are two controls and one  
indicator on the front panel of the 4500 thermostat:  
HEAT <> COOL BYPASS <> ACTIVE  
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2
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Figure 1. 4500 Thermostat Controls and Indicator  
HEAT/COOL Switch  
1
.
.
This switch is used to set the control mode of the 4500 thermostat.  
The mode can be set to either HEAT or COOL. This is the same as  
found on most thermostats. For premises that only have heat or air  
conditioning but not both, the proper mode should be selected with  
this switch, and the setting should not be changed.  
2
ACTIVE/BYPASS Switch  
This switch is used to activate and deactivate the 4500 thermostat.  
When this switch is set to the ACTIVE mode, the 4500 thermostat is  
able to set back the room temperature when the security system is  
ARMED AWAY. BYPASS is used to bypass the 4500 thermostat.  
When bypassed, the 4500 thermostat cannot change the room  
temperature.  
To use fan alone on your thermostat, put the 4500 in the BYPASS position.  
You will not be able to adjust room temperature by phone when the 4500  
thermostat front panel switch is in BYPASS position.  
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Front Panel Controls (cont’d)  
There are several uses for the BYPASS switch function:  
Allows the user to go back to their original thermostat at any  
time.  
Allows heating/air conditioning service people to bypass the 4500  
thermostat during servicing and maintenance work.  
Allows switching back to the original thermostat if the security system is  
not working or is being serviced.  
3. ACTIVE/ BYPASS Controls Indicator  
This yellow LED indicator shows the status of the 4500 thermostat.  
When the ACTIVE/BYPASS switch is in the ACTIVE position, the  
LED will be steadily on.  
When in BYPASS, the LED will be steadily off.  
If there is a problem with the wiring to the 4500 thermostat, the LED will flash,  
and you should call your alarm installation or service company for service.  
Product Specifications:  
Operating Range: 32° to 122° F., 0° to 50° C.  
Temperature Setting Range: 45° to 99° F., 7° to 37° C.  
Air Conditioner Compressor Off Cycle: 5 minutes minimum  
Physical Dimensions: 6-3/16” by 2-7/8” by 1-1/4”  
The 4500 measures the temperature of the surrounding air as well as the wall  
that it is mounted on. It may provide a slightly different reading than a  
thermometer or another thermostat mounted nearby.  
This can be due to nearby sources of heat or drafts, sunlight, and varying  
accuracy of existing thermostats. Unless the reading is off by more than  
4° F, this should not be a cause for concern.  
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Controlling the 4500 Thermostat by Phone  
The phone access feature of the Honeywell security system provides a  
number of capabilities to the user:  
To adjust the ARMED AWAY set back temperature of the 4500  
thermostats over any phone.  
To turn off the set back function for a single ARMED AWAY  
period, or turn it on again if necessary.  
To control two 4500 thermostats in a single installation.  
A Thermostat Mode voice menu can be activated after accessing the  
security system by phone.  
To Enter the Thermostat Mode Menu By Phone  
1
. Obtain access to your security system by phone according to the  
instructions for phone access provided with your security system.  
You will need to enter the 2-digit phone code provided by your  
installer, and your 4-digit user code when you are calling from  
outside, or whenever prompted by the system.  
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3
. You will now hear the announcement of the security system  
status followed by the ambient room temperature (if installer  
has programmed this particular option).  
. Wait until the security system completes the status announce-  
ments. When prompted by the system, press:  
#
9
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The security system phone access module will announce all words  
denoted by quotation marks and italicized as follows:  
“THERMOSTAT MODE,” followed by whether “SET-BACK” is  
“ON” or “OFF”, and whether the 4500 thermostat is set for  
HEAT MODE” or “COOL MODE.”  
The temperature setting of the 4500 thermostat that is in effect  
when the security system is ARMED AWAY.  
A menu of thermostat related end-user commands will be annunciated.  
The following sections: Adjusting the Set-Back Temperature of the  
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500 thermostat, Turning the Set-Back On and Off, Using Two  
500 thermostats With Your Security System, and Exiting  
Thermostat Mode explain the use of the thermostat mode commands.  
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Adjusting the Set-Back Temperature  
of the 4500 Thermostat  
Keep in mind that the on-premises existing thermostat is set to the  
desired temperature for when the building is occupied. The 4500  
thermostat is used to set the set-back temperature for when the  
premises is unoccupied and the security system is in the ARMED  
AWAY mode.  
The 4500 thermostat is set from any Touch-tone phone, either on-  
premises, or by calling in when away.  
1. Make sure that the front panel switches on the 4500 thermostat  
are set correctly.  
The ACTIVE/BYPASS switch must be set to ACTIVE, and  
The HEAT/COOL switch must be set for the desired mode of  
operation.  
2
3
. Enter thermostat mode as described on page 5. A menu of user  
commands will be announced.  
. When you hear the prompt, “To change temperature, enter 1,”  
Press 1 during a pause in the thermostat mode menu  
announcement.  
The system will announce “Temperature set to 65,” for example.  
4
. Next, it will announce “Enter new temperature.”  
If you want to keep the present set-back temperature, 65 degrees  
in this example, just press ✴  
.
5. If you want to change the set-back temperature point, you can  
then enter a new temperature:  
6
1
for example.  
You have now set your unoccupied premises temperature to 61  
degrees. The system will then announce the change of set point.  
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Setting the Set-Back Temperature  
of the 4500 Thermostat (cont’d)  
6
. The new ARMED AWAY (set-back temperature) point will be  
announced. This is the temperature the 4500 thermostat will  
maintain when you are away from the premises. The set-back is  
turned on only when the security system is ARMED AWAY.  
The system will announce “Armed away temperature set to 61.”  
. Next, it will repeat “Enter new temperature.”  
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If you want to keep the present set point, 61 degrees in this  
example, just press ✴  
.
If you make an out-of-range temperature setting, a buzzer sound  
will indicate to you that you made a mistake, and you will be  
prompted again to enter the desired set point.  
You have now set your ARMED AWAY temperature to 61 in this  
case, and the phone module will echo back the change to verify.  
8. If you are all done with the settings, and now want to arm or  
disarm the security system, wait for the “To exit enter zero”  
0
menu announcement and press  
.
9
. At this point, you have adjusted the set-back temperature and  
the new setting has been echoed back. Your options now are:  
to wait for the menu to be announced again in case you want to  
review or change the thermostat settings.  
to just hang up the phone.  
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Turning the Set-Back On and Off  
The set-back feature of the 4500 thermostat works automatically  
when you leave the premises and the security system is ARMED  
AWAY. However, sometimes you may want to override this feature.  
You can turn off the set-back at any time, while still on the premises  
or off.  
For example, on a very hot day, you may want the premises  
temperature to be restored to the more comfortable normal settings  
by the time you return home from work instead of remaining at the  
more economical set-back temperature until you arrive. You would do  
the following:  
1
2
. Call the security system before returning home.  
. Enter your 2-digit phone code and 4-digit user code as requested  
by the system.  
3
. Press to enter the Thermostat Mode Menu.  
#
9
9
4. At the “To Turn Set-Back Off, Enter 3” prompt, press  
3
.
This command temporarily deactivates the set-back function until  
you return home.  
5. You can exit the Thermostat Mode at this point by pressing  
at the exit prompt.  
0
6
. The premises cooling system will now be under the original  
thermostat’s control with the premises temperature being lowered  
to the more comfortable setting.  
When you turn off the set-back, you are only doing so temporarily.  
When you return home the thermostat mode menu resets itself  
automatically so that when you again exit the premises with the  
security system in the ARMED AWAY state, the premises  
temperature will go to the programmed 4500 thermostat setting.  
In the example above, if you change your mind and decide not to  
return home early, you can turn the thermostat set-back to on again  
by phone.  
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Using Two 4500 Thermostats with  
Your Security System  
If your security system includes two 4500 thermostats and you have a  
multi-zone heating or air conditioning system, you can set the heat  
and air conditioning at different temperatures in different parts of the  
house.  
In order to program the thermostats, you must obtain access to the  
security system and then the Thermostat Menu Mode.  
Refer to the section “To Enter the Thermostat Menu Mode” on  
page 5 or perform the first three steps of the abbreviated step-by-step  
procedure on page 8 and continue with this procedure.  
The two thermostats in your system are named Thermostat 1 and  
Thermostat 2 for programming purposes. When you first enter  
Thermostat menu mode, you are hearing status for “Thermostat 1”,  
and you can adjust the set point for Thermostat 1 without having to  
LOG ON.”  
If, however, you want to review or set Thermostat 2, you must first  
choose the Log On menu selection.  
At the “To log on, enter 2” prompt, press  
2
. The System will  
announce  
“Enter thermostat number”.  
2
Press  
to select Thermostat 2.  
You will hear the operating mode and set-back temperature for  
Thermostat 2. Next, you can change its settings by waiting for the  
thermostat menu, and  
pressing  
after the “To change temperature, enter 1” prompt.  
1
You can then review and change the set-back temperature in effective  
in the ARMED AWAY mode as described earlier in “Setting the 4500  
thermostat” on page 5 of this manual.  
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When Leaving Protected Premises  
for Extended Periods  
We recommend that the 4500 thermostat, the original thermostat,  
and the entire heating/cooling system be tested weekly, and always  
before leaving the premises for extended periods of time such as  
during vacation time.  
We recommend that your alarm system is monitored by a central station for  
system low battery and AC loss. Be sure to give your central station contact  
information of someone who can access the premises in the event the system  
loses AC power while you are away for an extended period of time, since a power  
outage may cause the heating/cooling system to become inoperable.  
If you live in an area where temperatures can be extreme, it is  
important to dial into your security system periodically, as described  
earlier while away, to monitor premises temperatures. Follow  
procedures detailed on page 5 to hear ambient temperature status  
and on page 6 for making changes to the set-back settings in the  
thermostat program mode. If the heating, air conditioning, control  
system, electric power, or security system fails, you can call for  
service before any problems occur.  
If any one of those systems fails it could result in failure of the  
heating/cooling system to maintain room temperature. Failure of the  
heating or cooling system could result in property damage or injury.  
It is important to maintain your security and heating/cooling systems,  
and to periodically test your security system and heating/cooling  
system to insure proper operation.  
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Testing the Heating/Cooling System  
To be sure the heating/cooling system is maintaining the room  
temperature at the set-back point you have programmed by phone,  
test the system as follows:  
1.  
Be sure that the 4500 thermostat is in the ACTIVE mode using its front  
panel slide switch. Refer to page 3 if in doubt.  
2.  
Be sure that the ACTIVE LED turns on, and is not flashing.  
A flashing LED indicates a problem with the wiring to the  
500 thermostat).  
4
A “Check Thermostat” announcement on the phone is also an  
indication to call for servicing of the 4500 thermostat.  
3
. Arm the security system in the ARMED AWAY mode and leave  
the premises.  
When you return home or by calling home while away, verify that the  
temperature inside the premises closely matches the set-back point  
initially programmed. Be sure that sufficient time has been allowed  
for the premises ambient temperature to stabilize. If the 4500  
thermostat is not maintaining temperature as was programmed, first  
review the “ARMED AWAY” set-back point using the phone, and  
then check if the pre-existing thermostat is working as described in  
the next section.  
If both thermostats are not working, call your heating/air conditioning  
service company for servicing of your system. If only the 4500  
thermostat is not working properly, immediately set its front panel  
switch to BYPASS, thereby using the pre-existing thermostat to  
control your heating and cooling system, and call your alarm  
installation or service company for service.  
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Testing the Pre-Existing Thermostat  
Switch the front panel ACTIVE/BYPASS switch to BYPASS, and  
check that the pre-existing thermostat (not the 4500 thermostat) is  
working and able to control the heating/cooling system. If the pre-  
existing thermostat does not function, have it replaced, or call your  
heating or air conditioning service company.  
If you need service for your security system or heating/air conditioning  
system:  
If your security system or heating/air conditioning systems are in  
need of service, set the 4500 thermostat to the BYPASS mode using  
the front panel ACTIVE/BYPASS switch.  
When bypassed, the 4500 thermostat is totally removed from control  
of the heating and/or air conditioning systems. The  
pre-existing (original) thermostat will then maintain total control of  
the heating and/or air conditioning systems.  
When the 4500 thermostat is bypassed, it will be easier for  
heating/air conditioning service personnel to service those systems  
including their respective control systems. The switch may be  
restored to the ACTIVE position when the servicing is completed.  
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FEDERAL COMMUNICATIONS COMMISSION  
(FCC) PART 15 STATEMENT  
This equipment has been tested to FCC requirements and has been found accept-able for  
use. The FCC requires the following statement for your information:  
This equipment generates and uses radio frequency energy and if not installed and used  
properly, that is, in strict accordance with the manufacturer's instructions, may cause  
interference to radio and television reception. It has been type tested and found to comply  
with the limits for a Class B computing device in accordance with the specifications in  
Part 15 of FCC Rules, which are designed to provide reasonable protection against such  
interference in a residential installation. However, there is no guarantee that interference  
will not occur in a particular installation. If this equipment does cause interference to  
radio or television reception, which can be determined by turning the equipment off and  
on, the user is encouraged to try to correct the interference by one or more of the following  
measures:  
If using an indoor antenna, have a quality outdoor antenna installed.  
Reorient the receiving antenna until interference is reduced or eliminated.  
Move the receiver away from the security control.  
Move the antenna leads away from any wire runs to the security control.  
Plug the security control into a different outlet so that it and the receiver are  
on different branch circuits.  
If necessary, the user should consult the dealer or an experienced radio/television  
technician for additional suggestions. The user or installer may find the following booklet  
prepared by the Federal Communications Commission helpful:  
“Interference Handbook.”  
This booklet is available from the U.S. Government Printing Office, Washington, DC  
0402.  
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The user shall not make any changes or modifications to the equipment unless authorized  
by the Installation Instructions or User's Manual. Unauthorized changes or modifications  
could void the user's authority to operate the equipment.  
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ONE YEAR LIMITED WARRANTY  
Honeywell International Inc., acting through its Security & Custom Electronics business ("Seller"), 165 Eileen Way,  
Syosset, New York 11791, warrants its security equipment (the "product") to be free from defects in materials and  
workmanship for one year from date of original purchase, under normal use and service. Seller's obligation is  
limited to repairing or replacing, at its option, free of charge for parts, labor, or transportation, any product proven  
to be defective in materials or workmanship under normal use and service. Seller shall have no obligation under  
this warranty or otherwise if the product is altered or improperly repaired or serviced by anyone other than the  
Seller. In case of defect, contact the security professional who installed and maintains your security equipment or  
the Seller for product repair.  
This one year Limited Warranty is in lieu of all other express warranties, obligations or liabilities. THERE ARE NO EXPRESS  
WARRANTIES, WHICH EXTEND BEYOND THE FACE HEREOF. ANY IMPLIED WARRANTIES, OBLIGATIONS OR  
LIABILITIES MADE BY SELLER IN CONNECTION WITH THIS PRODUCT, INCLUDING ANY IMPLIED WARRANTY OF  
MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE, ARE LIMITED IN DURATION TO A  
PERIOD OF ONE YEAR FROM THE DATE OF ORIGINAL PURCHASE. ANY ACTION FOR BREACH OF ANY WARRANTY,  
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY, MUST BE BROUGHT WITHIN  
1
2 MONTHS FROM DATE OF ORIGINAL PURCHASE. IN NO CASE SHALL SELLER BE LIABLE TO ANYONE FOR ANY  
CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESS OR  
IMPLIED, OR UPON ANY OTHER BASIS OF LIABILITY WHATSOEVER, EVEN IF THE LOSS OR DAMAGE IS CAUSED BY  
THE SELLER'S OWN NEGLIGENCE OR FAULT. Some states do not allow limitation on how long an implied warranty lasts or the  
exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. Seller  
does not represent that the product may not be compromised or circumvented; that the product will prevent any  
personal injury or property loss by burglary, robbery, fire or otherwise; or that the product will in all cases provide  
adequate warning or protection. Buyer understands that a properly installed and maintained alarm may only  
reduce the risk of a burglary, robbery, fire or other events occurring without providing an alarm, but it is not insur-  
ance or a guarantee that such will not occur or that there will be no personal injury or property loss as a result.  
CONSEQUENTLY, SELLER SHALL HAVE NO LIABILITY FOR ANY PERSONAL INJURY, PROPERTY  
DAMAGE OR OTHER LOSS BASED ON A CLAIM THE PRODUCT FAILED TO GIVE WARNING. HOWEVER,  
IF SELLER IS HELD LIABLE, WHETHER DIRECTLY OR INDIRECTLY, FOR ANY LOSS OR DAMAGE  
ARISING UNDER THIS LIMITED WARRANTY OR OTHERWISE, REGARDLESS OF CAUSE OR ORIGIN,  
SELLER'S MAXIMUM LIABILITY SHALL NOT IN ANY CASE EXCEED THE PURCHASE PRICE OF THE  
PRODUCT, WHICH SHALL BE THE COMPLETE AND EXCLUSIVE REMEDY AGAINST SELLER. This  
warranty gives you specific legal rights, and you may also have other rights which vary from state to state. No  
increase or alteration, written or verbal, to this warranty is authorized.  
1
65 Eileen Way, Syosset, NY 11791  
Copyright 2005 Honeywell International Inc.  
www.honeywell.com/security  
ÊN7972V1hŠ  
N7972V1 5/05 Rev. A