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Owner’s Guide
®
TrueIA Q
Digital IAQ Control
69-2072-05
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Table of contents User Information Installer Information ® About TrueIAQ .............................. 1 Installation .................................. 8 Operation .................................... 2 Wiring ........................................ 10 Display screen reference ........... 3 Mounting the outdoor sensor .....16 Advanced programming .......... 17 Adjusting IAQ settings Changing humidifier settings ..... 4 Appendices Changing dehumidifier settings ... 6 Standards ...............
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® About TrueIAQ ® The TrueIAQ monitors and automatically adjusts operation of your whole-house humid- ifier, dehumidifier, ventilator, or bath fan. Maintaining proper indoor humidity minimizes the potential for unhealthy airborne pol- lutants to grow. Having too little humidity can leave you vulnerable to infections and uncomfortable dry skin. Too much humidity creates ideal breeding grounds for mold, mildew and dust mites. Humidified air also feels warmer in the winter, and dry air feels coo
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Operation ® TrueIAQ can be used to control the humidity levels in your home, and control fresh air intake in accordance to industry recommendations (ASHRAE 62.2). Comfort Settings: Feedback Indoor Conditions: Actual on your indoor IAQ conditions. indoor temperature and humidity. 1 Outdoor Conditions : Actual In % Programmable Clock: outdoor temperature and 6840 Displays time and allows Out humidity. % IAQ equipment programming 7655 based on time. PM : 12 15 Maintenance Reminders: Notifies
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Display screen reference Wet: Indoor Window Frost: The control is humidity levels are protecting your home against too above 60% RH. much humidity based on outdoor Dry: Indoor humidity levels conditions. Humidity levels in your are below 20% relative home may not reach your desired humidity (RH.) RH% setting as a result. In % Indoor temperature 6840 Out and humidity. % 7655 Outdoor temperature De Humidify: If “Humidify” is dis- and humidity. PM played, the control is calling for : 12 1
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Changing humidifier settings Note: These items will appear only if a humidifier is installed on your system. 1. Set humidifier by pressing UP/DOWN arrows. % 35 Tables below are recommended initial humidity settings based on Humidify outdoor temperature. If window frost setting (see next page) is not being used, the humidity setting should be adjusted manually when Set outdoor conditions change. M24831 Red font is Outdoor Temp. Setting blinking on screen. -20°F (-29°C) 15% 0°F (-18°C) 25%
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Changing humidifier settings 2. Press “More” to enter Window Frost Protection. Use the UP/DOWN Window Frost arrows to set frost protection level. LESS HUMIDITY MORE HUMIDITY 7 LOOSE HOME/SINGLE-PANE WINDOWS TIGHT HOME/TRIPLE-PANE WINDOWS 12345678 9 Humidify M24830 ® M24832 On the first cold day after TrueIAQ is installed, look for condensation on windows. If present, lower Frost Protection by one. Once set for your home, Frost Protection does not need to be changed again. 3. Press “More” ag
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Changing dehumidifier and ventilation settings Note: These items will appear only if a dehumidifier is installed. If both a humidifier and dehumidifier are installed, these settings will appear after pushing “More” from the humidifier operation style screen. % 60 1. Set dehumidifier by pressing the UP/DOWN arrows. RH% will change in increments of five. DeHumidify 2. Press “More” to enter operation style. Press the UP/DOWN arrows to Set set. M24834 • “Auto” runs dehumidifier automatica
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In % 6840 Out % Changing time of day and service timers 7655 : 12 00 Set 1. Press “More.” Adjust hour using the the UP/DOWN arrows. 2. Press “More.” Adjust minutes using the UP/DOWN In arrows. % 6840 3. Press “Done” to save settings. Out % 7655 M24934 : 12 00 Set In % 6840 Out % 7655 Service Timers PM : 12 15 Service timers appear when the humidifier, dehumidifier, ventilator, air filter, and/or UV bulbs need service. Your HVAC M24935 technician will set these timers during installation. Rese
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ELECTRONIC AIR CLEANER Installation CAUTION: ELECTRICAL HAZARD. Can cause electrical shock or equipment damage. Disconnect power before beginning installation. 1. Turn system power off. ® 2. Choose a location. TrueIAQ can be mounted to a wall or directly to the return duct. M24787 69-2072—05 8 69-2072_C.indd 8 7/31/2008 2:04:25 PM
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Installation 3. Loosen the cover screw. 4. Separate the front housing from the base. M24814 5. For wall mounting, run wires through the back hole to the terminals. Wire size for all connectors: 2 x 18 AWG to 1 X 22 AWG. Install the mounting plate using two screws. M24818 A 6. For duct mounting, (A) snap out side wall clip and attach as shown. Run wires through the side wall hole, under the clip, to the terminals. (B) Snap in sensor cap. 7. Reinstall the front housing on the power base, an
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Wiring Pin Pin description Pin capacity R 24V supply. Must be common to G output. 24Vac±20% 1.5 amp max C 24V supply common. 24Vac±20% Sensor Communication and supply bus to remote 24Vdc 64mA max sensors (sensor pins not polarized). out Sensor Switch Override switch input. Active when R is 24Vac±20%, applied 10mA max in W W input to sense when the thermostat is 24Vac±20%, calling for heat. Active when R is applied. 10mA max in G G input to sense fan calls. Active when R is 24Vac±20%, appli
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Wiring ® Wiring TrueIAQ with a non-powered humidifier. R + 24V TRANSFORMER – C THERMOSTAT SENSOR R TrueIAQ SENSOR C In SWITCH W % 68 40 Out % 7655 W Y PM : 12 15 G G VENT HVAC HE225 BYPASS VENT HUMIDIFIER DEHUM DEHUM HUM HUM M27340 11 69-2072—05 69-2072_C.indd 11 7/31/2008 2:04:26 PM
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Wiring ® HVAC Wiring TrueIAQ with a TrueIAQ powered humidifier. In % 68 40 Out HUM % 7655 RC W Y G PM 12:15 HUM 24V 24V 24V 24V RECOMMENDED PRESSURE HUM SWITCH HUM C GT R RT GF EXT RRc W Y G FACTORY TrueSTEAM - INTERNAL INSTALLED JUMPER THERMOSTAT NOTE: IF PRESSURE SWITCH IS USED, ENSURE DIP 5 IS IN ON POSITION. M27341 69-2072—05 12 69-2072_C.indd 12 7/31/2008 2:04:26 PM
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Wiring ® TH8110U Wiring TrueIAQ with a dehu- 1 RRcCG W Y midifier and ventilation damper. TrueIAQ R R C C In % 68 40 Out % SENSOR OUTDOOR W 7655 HVAC PM : SENSOR 12 15 SENSOR Y (PROVIDED) SWITCH G W G VENT EARD-6 VENT DEHUM DEHUM DH90 DEHUMIDIFIER HUM GRAY DAMPER CONTROL HUM (NOT USED) RED +24VAC POWER YELLOW COMPRESSOR CONTROL COMM. BLUE FAN AND COMPRESSOR CONTROL GREEN FAN ONLY CONTROL 1 IF A THERMOSTAT OTHER THAN A TH5110, TH5220, TH5320, TH6110, TH6220, TH6320, TH8110, TH8320 OR TH8321 IS U
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Wiring ® Wiring TrueIAQ with a TH8110U RRcCG W Y humidifier and HRV/ERV 1 ventilator. TrueIAQ R R C C In % 6840 Out % SENSOR OUTDOOR W 7655 HVAC PM 12:15 SENSOR SENSOR Y (PROVIDED) G SWITCH W ERV/HRV G RED VENT VENT BLACK DEHUM GREEN DEHUM HUM HE265 HUM 2 R C 24 VOLT/40VA TRANSFORMER L1 L2 1 IF A THERMOSTAT OTHER THAN A TH5110, TH5220, TH5320, TH6110, TH6220, TH6320, TH8110, TH8320 OR TH8321 IS USED, A RELAY MAY BE REQUIRED TO ISOLATE THE G WIRE. 2 FOR WIRING OF HUMIDIFIER OTHER THAN THE HE26
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Wiring ® TH8110U Wiring TrueIAQ with a non- 1 RRcCG W Y powered humidifier, ventila- tion damper, and an auxiliary TrueIAQ R R exhaust fan. C C In % 68 40 Out % OUTDOOR W 7655 SENSOR HVAC PM : SENSOR 12 15 SENSOR Y (PROVIDED) SWITCH G W G VENT EARD-6 VENT DEHUM DEHUM HE265 HUM 2 HUM EXHAUST FAN BLACK L1 W R 120 VOLT POWER G YELLOW L2 WHITE C Y 3 BLACK R8239 FAN CENTER RELAY 1 IF A THERMOSTAT OTHER THAN A TH5110, TH5220, TH5320, TH6110, TH6220, TH6320, TH8110, TH8320 OR TH8321 IS USED, A RELAY
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Mounting the outdoor sensor 1. Do not mount on the south side of the house or in direct exposure to sunlight. 2. Keep at least 4 feet away from exhaust vents. 3. If in an air intake, place 1 foot closer to outside wall. 4. Place at least 6 inches higher than possible snow buildup. 5. Do not route sensor wire near high voltage wires. Note: The sensor can be extended using 18-gauge wire. M24821 M24822 69-2072—05 16 69-2072_C.indd 16 7/31/2008 2:04:27 PM
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Advanced HVAC installer setup instructions 1. Press and hold the UP/ 2. Press “More” to advance to the DOWN arrows for 3 seconds. next setup option. See table on next page. M24823 M24824 3. Use the UP/DOWN arrows to 4. Press “Done” at any time to save and select options. See table on next return to the home screen. page. M24825 17 69-2072—05 69-2072_C.indd 17 7/31/2008 2:04:27 PM
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Advanced programming To be used by qualified HVAC technician. Setup functions Settings & Options (factory default in bold) 10 Temperature Display 1=Fahrenheit; 2=Celcius 15 Frost Protection 0=Not installed 1=Frost Protection OFF 2=Frost Protection ON 20 Humidity High Limit 5%-80% in 5% increments; 40% 25 Humidifier Operation 0=Hum only while heat on 2=Hum forces fan on 1=Hum only while fan on 3=Hum operates indepen- dent of fan 30 Programmed Humidity 0=OFF; 1=ON 35 Program Start Time 15 min i
