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W8710A Equipment Monitoring System
APPLICATION
The W8710A Equipment Monitoring System provides HVAC
system performance monitoring and reporting. It sends a fax
report when it detects that the HVAC system is operating
outside of specifications, when the temperature in the home is
too hot or too cold, and when a power outage occurs and
when it is restored.
® U.S. Registered Trademark
Copyright © 2001 Honeywell • All Rights Reserved
FEATURES
• Sends monthly check-in reports to confirm that the
Equipment Monitoring System is operating correctly.
• With the optional Customer Alert Switch, the
homeowner can periodically request a system update.
• Supports two inputs for optional sensors such as the
Water Alert Float Switch.
• Comes preset with one year of monitoring included.
After one year, the annual monitoring service must be
renewed to continue to receive reports.
• Operates on a small, highly specialized computer that
analyzes information received from its precision air
measurement sensors and your system thermostat.
• Automatically sends an alarm report when your
heating and cooling system is not operating at
designed specifications.
• Automatically sends an alarm report if the temperature
in your home becomes too hot or too cold.
• Automatically sends an alarm report when you have a
power outage longer than one hour and sends another
report when power is restored.
• Automatically sends a monthly check-in report to
confirm that the W8710A is operating correctly.
• Designed to cause minimal interruption to your phone
line. It does not disrupt ongoing phone conversations,
phone line usage of your personal computer modem or
an answering machine.
• Does not alter the operation or warranty of your air
conditioner, furnace or heat pump system.
Application/Features..........................................................1
Specifications/Ordering Information ..................................2
Registration .......................................................................3
Installation .........................................................................3
Wiring ................................................................................4
Startup and Checkout........................................................6
Operation...........................................................................13
Troubleshooting.................................................................15
PRODUCT DATA
Contents
68- 0256
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Summary of Contents for Honeywell W8710A
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Page 1: Table Of Contents
• Automatically sends an alarm report if the temperature The W8710A Equipment Monitoring System provides HVAC in your home becomes too hot or too cold. system performance monitoring and reporting. It sends a fax report when it detects that the HVAC system is operating •... -
Page 2: Specifications/Ordering Information
Honeywell, 1885 Douglas Drive North Minneapolis, Minnesota 55422-4386 (800) 468-1502 In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V4Z9. International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A. -
Page 3: Registration
Selecting Mounting Location M20144 Fig. 1. W8710A dimensions in in. (mm). Locate the W8710A in the equipment room near the HVAC equipment and where access to the main telephone line is available. Locate the W8710A where the sensors can be REGISTRATION connected using the supplied 7-ft. -
Page 4: Wiring
3. Secure the sensors with sheet metal screws (not sup- can damage the W8710A. plied) in the slots. Mount W8710A on the wall or the return air duct. 1. After selecting the mounting location, drive a sheet IMPORTANT — Install the black return air sensor where it cannot be... - Page 5 For instructions on mounting the sensor, see instructions packaged with the sensor. NOTE: The W8710A has a factory default outside air tem- perature setting of 46°F (8°C) that can be used instead of an external air temperature sensor in mod- erate climates.
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Page 6: Startup And Checkout
1. Turn on the power to the HVAC system. ACCESS CODE __ __ __ __ 2. Turn the W8710A power switch to the On position.The 10. The Handheld Programmer displays “Status OK.” red LED located on the W8710A flashes for five sec- onds and then remains steady. - Page 7 (or if you just want to 15. The next screen requests you to select the type of Air reset the W8710A to the original factory setting, Sensor. Press 3 to select W8710A. continue the following step.
- Page 8 21. Manually send your first alert report to be sure the W8710A is transmitting correctly (verify that the modem PHONE PREFIX –9N and phone line are working) and to register the W8710A OKAY? YES OR NO with the Honeywell Central Station. To do this: a.
- Page 9 If you have problems, cause errors during custom calibration, reached, press Enter. or if the computer locks up, reboot the W8710A by unplugging the Handheld Programmer and sliding the Power switch in the NOTE: In colder climates, it is preferable to adjust the Mini- lower right corner of the circuit board to Off and then back to mum Temperature Alarm to 50°...
- Page 10 – – – (K) 6. Observe custom calibration running for System Delay 4. Press Yes or No key to confirm. Time. When completed, W8710A beeps and the Hand- held Programmer returns to Status OK. HEAT BTU: XXX YES OR NO CALIBRATION 5.
- Page 11 Sensors ADJUST HUMIDITY SENSOR YES NOTE: The W8710A uses state-of-the-art solid-state return and supply air sensors selected for accuracy, stabil- 4. Press Up or DN key to adjust humidity sensor to match ity and ruggedness. These sensors are all calibrated reading from sling psychrometer or other calibrated test at the factory but can be recalibrated, as necessary.
- Page 12 • Using wireless telephone jacks causes low telephone line STATUS OK voltage • Both of the above conditions can cause the W8710A to Circuit Board LED Red Indicator Light incorrectly sense extension line usage and prevent alert reports from being transmitted.
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Page 13: Operation
Temperature Temperature 3. The Equipment Monitoring System uses the national 1. The W8710A Equipment Monitoring System evaluates industry average to determine that a 55° F calculated system performance by comparing actual return and D/T is the best temperature rise for most gas heat sys- supply air sensor readings to its own calculations. - Page 14 W8710A EQUIPMENT MONITORING SYSTEM Cooling Gas Heat Above 75 High D/T Alert Report Supply Air Temperature + 20 Tolerance Range Supply Air Temperature -20 Tolerance Range 18 Calculated Temperature Fall Calculated 55 Temperature Rise Return Air Return Air Temperature Temperature...
- Page 15 W8710A EQUIPMENT MONITORING SYSTEM Cooling Supply Air Cooling Temperature Supply Air Temperature Calculated Temperature Fall 18 Calculated Changes with Temperature Fall % Relative Humidity Return Air Return Air Temperature Temperature 100% 100% Relative Humidity Relative Humidity 9. As the relative humidity increases, the sensible cooling 11.
- Page 16 Understanding Your W8710A Alert Report The W8710A provide HVAC system performance monitoring and reporting. The device faxes an alert report to the contractor. The report is sent on alert, regularly once a month, and anytime the customer presses the Customer Alert switch, if installed. See Fig.
- Page 17 Alert Report. NOTE: This can differ from the actual return air temperature 14. The W8710A calculated D/T is: This is what the D/T at the time the fault was detected; see item 6. should have been (as calculated by the W8710A) when the problem was detected.
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Page 18: Troubleshooting
LED comes on. If so, replace the cable(s). No 24V power from the transformer. Check R and C on W8710A terminal strip for 24V power. Telephone and Fax Problem No fax report after manually initiating a Customer is using the phone line (LED blinks Make sure line is not in use;... - Page 19 Handheld Programmer Problems Keys do not enter information. The W8710A is trying to send alert report. Wait until report is sent or briefly press the Clear button to remove the fault. The W8710A is locked up.
- Page 20 +RPH DQG %XLOGLQJ &RQWURO +RPH DQG %XLOGLQJ &RQWURO +RQH\ZHOO +RQH\ZHOO /LPLWHG+RQH\ZHOO /LPLWpH 'RXJODV 'ULYH 1RUWK '\QDPLF 'ULYH *ROGHQ 9DOOH\ 01 6FDUERURXJK 2QWDULR 09 = Printed in U.S.A. on recycled 68-0256 G.H. 10-01 www.honeywell.com/yourhome paper containing at least 10% post-consumer paper fibers.