Aprilaire 8620 Thermostat User Manual
Contents
1. 0 B set to w2 Y Y2 0 B G 1st Stage Test ON ON ON 2nd Stage Test ON ON ON ON Note System Variable 31 O B operation selects or B Fan Equipment Test 11 12 Humidification Equipment Test ON 11 12 Dehumidification Equipment Test ON 11 12 Ventilation Equipment Test ON ON QUICK REFERENCE TO CONTROLS amp DISPL HOME SCREEN ROOM TEMPERATURE FAN MODE BUTTON FAN MODE SETTING SYSTEM MODE BUTTON SYSTEM MODE SETTING EQUIPMENT STATUS MESSAGE CENTER SCROLLING TEXT LOW BATTERY INDICATOR CURRENT TIME amp DATE CURRENT DAY OUTDOOR TEMPERATURE Aprilaire 9 06 i IGBI 11 HEAT BLAST BUTTON ROOM RELATIVE HUMIDITY EMPERATURE SETTING AIR CLEANING BUTTON ENTERS EVENT BASED AIR CLEANING CONTROL SCREEN HUMIDITY CONTROL BUTTON ENTERS HUMIDITY CONTROL SCREEN FRESH AIR BUTTON ENTERS VENTILATION CONTROL SCREEN EMPERATURE ADJUSTMENT INDICATORS SHOW THROUGH HOUSING HEAT PUMP ONLY EMERGENCY HEAT OR AUXILIARY HEAT RED SYSTEM FAULT YELLOW HOLD BUTTON SETS OR CLEARS HOLD MAIN MENU BUTTON NOTE BACKLIGHT IS ACTIVATED WITH FIRST BUTTON PRESS AND AUTOMATICALLY TURNS OFF MAIN MENU SET SCHEDULE BUTTON CLEAN SCREEN LOCKOUT TOUCH SCREEN FOR 30 SECONDS USER SYSTEM SETTINGS SET VACATION HOLD HOLD TO TIME AND DATE2. SETUP amp TESTING SETUP amp TESTING Ventilation System Settings Table continued REMOVAL OF INDOOR AIR QUALITY CONTROL BUTTONS A MJ Factory default setting bold If any of the Indoor Air Quality control features are not installed the corresponding button can be removed using the System setting Description and setting range following procedure Number of Bedrooms Selects the number of bedrooms to be used for the ASHRAE 3 Bedrooms calculation Only available if fresh air setup is set to ASHRAE 1 to 6 Bedrooms Step 1 Verify the specific Indoor Air Number of Occupants Selects the number of occupants to be used for the ASHRAE 4 Occupants Quality control feature is not genes calculation Only available if fresh air setup is set to ASHRAE 1 to 10 Occupants installed in the installer set up INDOOR Home Size Selects the home size to be used for the ASHRAE calculation 2500 SQ FT see pages 10 12 Ea AIR QUALITY Only available if fresh air setup is set to ASHRAE 1000 to 5000 SQ FT Step 2 From the home screen see 6 Ep 10 Fresh Air Selects the ventilation CFM to be used for the ASHRAE 60 CFM page 17 press and hold the Heating calculation Only available if fresh air setup is set to ASHRAE 30 to 200 CFM IAQ button for 7 seconds SCHEJULE RUNNING Select Climate Selects the climate to be used for the ASHRAE calculation Normal Step 3 The
3. w2 Y Y2 G Gas 1st Stage Test ON Gas 2nd Stage Test Electric 1st Stage Test Electric 2nd Stage Test ON ON ON Compressor Aux O B set to Stages Stages 2 2 0 B G 1 1 1st Stage Tes ON ON 0 1 1 2nd Stage Test ON ON 0 0 2 1 1st Stage Tes ON 0 0 2 1 2nd Stage Test ON ON 0 0 2 1 3rd Stage Tes ON ON ON 0 0 1 2 1st Stage Tes ON 0 0 1 2 2nd Stage Test ON ON 0 0 1 2 3rd Stage Tes ON ON ON 0 0 2 2 1st Stage Tes ON 0 0 2 2 2nd Stage Test ON ON 0 ON 2 2 3rd Stage Tes ON ON ON 0 ON 2 2 Ath Stage Tes ON ON ON ON 0 ON Note System Variable 31 O B operation selects O or B Compressor Aux 0 B set to Stages Stages 2 Y2 0 B G 1 1 1st Stage Tes ON ON 0 1 1 2nd Stage Test ON ON 2 1 1st Stage Tes ON ON 0 2 1 2nd Stage Test ON ON ON 0 2 1 3rd Stage Tes ON ON 1 2 1st Stage Tes ON ON 0 1 2 2nd Stage Test ON ON 1 2 3rd Stage Tes ON ON ON 2 2 1st Stage Tes ON ON ON 2 2 2nd Stage Test ON ON ON ON 2 2 3rd Stage Tes ON ON 2 2 4th Stage Tes ON ON ON Note System Variable 31 O B operation selects or B SETUP amp TESTING SYSTEM TEST TABLES CONTINUED Heat Cool Cooling Equipment Test 1st Stage Test ON 2nd Stage Test ON ON Heat Pump Cooling Equipment Test
4. Phone 800 334 6011 e Fax 608 257 4357 10009857 4 12 B2205748A 20 www aprilairepartners com U S Patent Number 8 146 376 and other patents pending 2012 Aprilaire A division of Research Products Corporation
5. System fault indicator optional heat pump only S1 amp S2 outdoor temperature sensor included T1 amp T2 remote temperature sensor optional Jumper between RC amp R is used in single transformer systems see wiring diagrams INSTALLATION CONVENTIONAL HEAT COOL WIRING DIAGRAMS SINGLE TRANSFORMER USE JUMPER WIRE TWO TRANSFORMERS REMOVE JUMPER WIRE us E 4 a 8E S gig E E ale i lelo 2 Sa SIS alz 25 88 E 25 28 S E g 5 r3 amp 2 g 2 G G a 5 8 5 5 0000000000000000 000000000000000 UATUAUA UA US USUS UA UNIUS LUE UATUAT UTUAN UA US UJ UJ TT 2 C Y2 GRCRW2W L S2 S1 T1 T2 HEAT PUMP WIRING DIAGRAMS SINGLE TRANSFORMER USE JUMPER WIRE HEATPUMP 0 77 TRANSFORMER FAULT DETECT OUTDOOR TEMP SENSOR REMOTE TEMP SENSOR REVERSING VALVE 1st COMPRESSOR 2nd COMPRESSOR FAN 2nd AUX HEATING 1st AUX HEATING JUMPER I2 C 11 O B Y Y2 G RC R W2 W L S2 S1 T1 T2 TWO TRANSFORMERS REMOVE JUMPER WIRE R HEATING TRANSFORMER HEAT P
6. 12 Climate map for ASHRAE fresh air setup 12 Removal of Indoor Air Quality control buttons 13 System test 13 14 System test 15 16 REFERENCES Quick reference to controls amp display 7 0 8 Eror CodeS vec eee pals Pur era 19 Thermostat features 19 Specifications sci ccs sec muc 20 INSTALLATION INSTALLATION LOCATION RECOMMENDATIONS Thermostat should be mounted Do not mount thermostat On an interior wall in a frequently occupied space Behind doors in corners or other dead air spaces Approximately 5 above floor n direct sunlight near lighting fixtures or other At least 18 from outside wall appliances that give off heat e Thermostat can be mounted to a vertical junction box an outside or unconditioned area wall e n the flow of a supply register in stairwells or near outside doors On a wall with concealed pipes or ductwork OUTDOOR TEMPERATURE SENSOR INCLUDED Outdoor temperature can be measured by attaching the included 8052 sensor to the 1 and S2 terminals The outdoor sensor must be enabled in the installer setup menu Heat pump models can use the outdoor temperature to effectively utilize the heat pump When the outdoor temperature is less than the Low Balance
7. If IAQ Indoor Air Quality was selected Press or W to adjust the Outdoor Sensor setting or IAQ Indoor Air Quality option Press NEXT to select Outdoor Sensor setting or IAQ Indoor Air Quality option System Settings can now be changed Press NEXT or BACK to page through the settings Press or W to adjust the setting Press DONE to save and exit or CANCEL to exit without saving The thermostat will discard changes and exit if nothing is pressed within 60 seconds To reset the installer settings to the default reset the thermostat by pressing the RESET button for 5 seconds SETUP amp TESTING HVAC INSTALLER SYSTEM SETTINGS TABLE The following table contains the system settings and their details Default settings are shown in bold Some settings are only available dependent upon the value of other settings System setting Description Factory default setting bold and setting range 00 Equipment Type Equipment type set by SW1 Heat Cool Heat Pump 31 Reversing Valve Selects O or B operation 0 On in cooling B On in heating 01 Control Setup Used to lockout heating or cooling outputs Only Heat and Cool available in Heat Cool mode Heat Only Cool Only 02 Number of Stages Number of equipment stages One Two 03 Aux Heat Stages Number of auxiliary heat equipment stages One Two 04 Temperature Scale Set
8. January February March April May June July August September Second Reminder Start Month Determines the second month the Change Water Panel message is displayed Only available when Change Water Panel Reminder set to 2 per Season October November December January February March April May June July August September SETUP amp TESTING Dehumidifier System Settings Table Note Dehumidifier control can only be set to whole home if ventilation and humidification are not installed System setting Dehumidifier Control Description Selects method of dehumidification If set to none no Factory default setting bold and setting range None no dehumidification installed emp Limit other dehumidifier settings will be available Whole Home Air Conditioner Humidity Setpoint Deadband Select the minimum difference between the humidifier 10 Percent RH and dehumidifier setpoints Only available if 10 to 20 Percent RH humidifier mode is set to manual and dehumidifier control is set to air conditioner Available in bot set ups Lockout Dehumidifier During Selects if dehumidification is disabled during a cooling No Cooling call Only available if dehumidifier control is set to Yes whole home Dehumidifier Forces Fan Select if dehumidification can turn on the fan Only No available if dehumidifier control is set to whole home Yes Dehumidifier Se
9. Point the heat pump will be locked out and only auxiliary heating will be used When the outdoor temperature is higher than the High Balance Point the auxiliary heating will be locked out and only the heat pump will be used to provide heating Indoor Air Quality functions can use the outdoor temperature sensor to Control humidification setpoint based on outdoor temperature to prevent condensation Lock out humidification for temperatures over 60 F or below 30 F Lock out ventilation based on high and or low outdoor temperatures Display outdoor temperature on thermostat Outdoor temperature sensor should be mounted On side of building out of direct sunlight north side recommended Above snow line At least 3 away from exhaust vents and condensing lines Using less than 300 of wire Do not route wires along 120 VAC lines RE E ae Y Y2 G RC RW2W T1 T2 INSTALLATION REMOTE TEMPERATURE SENSOR OPTIONAL A remote temperature sensor can be used if the thermostat has to be mounted in a concealed location A 8051 flush mount or 8053 surface mount remote temperature sensor can be attached to the T1 and T2 terminals and mounted in a recommended area The remote sensor must be enabled in the installer setup menu When the remote sensor is installed it overrides the internal sensor Remote temperature
10. SET CURRENT IME AND DATE DONE BUTTON EXIT MENU TROUBLESHOOTING DISPLAY IS BLANK Check circuit breaker and reset if necessary Make sure power switch at heating amp cooling system is on Make sure furnace door is closed securely e f thermostat is battery powered make sure fresh AA alkaline batteries are correctly installed TEMPERATURE SETTINGS DO NOT CHANGE Make sure heating and cooling temperatures are set to acceptable ranges e Heat 40 to 90 F 4 to 32 C Cool 50 to 99 F 10 to 37 HEATING SYSTEM DOES NOT RESPOND HEATING APPEARS ON SCREEN Check for 24VAC at the equipment on the secondary side of the transformer between power and common If voltage is not present check the heating equipment to find the cause of the problem e Check for 24VAC between the heat terminal W and the transformer common If 24VAC is present the thermostat is functional Check the heating equipment to find the cause of the problem Check for loose or broken wires between the thermostat and the heating equipment COOLING SYSTEM DOES NOT RESPOND COOLING APPEARS ON SCREEN Check for 24VAC at the equipment on the secondary side of the transformer between power and common If voltage is not present check the cooling equipment to find the cause of the problem Check for 24VAC between the cooling terminal Y and the transformer common If 24VAC is present he thermostat is functio
11. sensor should be mounted Do not mount remote sensor On an interior wall in a frequently occupied space Behind doors in corners or other dead air spaces e Approximately 5 above floor n direct sunlight near lighting fixtures or other e At least 18 from outside wall appliances that give off heat e Using less than 300 of wire On an outside or unconditioned area wall n the flow of a supply register in stairwells or near outside doors On a wall with concealed pipes or ductwork Near 120 VAC lines TA T op R W2 W THERMOSTAT MOUNTING 1 Remove the rear mounting plate from the thermostat 2 Pull wires through the opening on the back of the hermostat 3 Position and level the mounting plate of the thermostat on wall and mark the hole locations with a pencil 4 Drill 1 4 holes and insert supplied anchors drywall only c Place mounting plate over anchors insert and tighten Screws 6 Seal wire entry holes to prevent drafts affecting emperature readings INSTALLATION POWER amp RESET OPTIONS The thermostat is dual power It can either be AC or battery powered or both to provide backup power for he clock Batteries are optional if your thermostat was wired to run on AC power when installed For heat pump systems the C terminal must be connected 0 the common
12. the thermostat to Fahrenheit or Celsius mode Fahrenheit Celsius 05 Heat Cool Fan Control Heat Cool Determines if the thermostat or Gas Oil Heat equipment controls fan in Heating equipment controls the fan in heating Electric Heat thermostat controls fan Heat Pump Auxiliary Heat Pump Auxiliary Equipment type Equipment Type 06 Extended Fan Heat Extends fan operation after heat call ends Disable Enable 90 second extension 07 Extended Fan Cool Extends fan operation after cool call ends Disable Enable 90 second extension 08 Internal Temp Sensor Field adjustment of internal temperature sensor 0 no offset applied Offset 4 F to 4 F 2 C to 2 C 35 Internal RH Sensor Offset Field adjustment of internal RH sensor 0 no offset applied 5 to 5 09 Auto Changeover Enable or disable auto changeover mode Disable Enable 26 Deadband Auto Changeover mode deadband 3 F 2 C 2 F to 9 F 1 C to 5 C 0 Remote Sensor Select if remote sensor is attached No Yes 11 Outdoor Sensor Select if outdoor sensor is attached or not No Yes 12 Compressor Min Off Time Minimum off time for compressor protection 5 minutes to 5 minutes 3 Heating Min Off Time Minimum off time for heating 2 minutes to 5 minutes 4 Equipment Min On Time Minimum on time for heating and cooling 2 minutes to 5 minutes 15 Auto Changeover Time Minimum time between heating and cooling calls 4 minutes to 5 minutes 16 First Stage Differ
13. UMP TRANSFORMEI OUTDOOR TEMP SENSOR REMOTE TEMP FAULT DETECT SENSOR REVERSING VALVE 1st COMPRESSO 2nd COMPRESSOR FAN 2nd AUX HEATING 1st AUX HEATING OOOO ODO OOGD OGD OP DOOM ODM OD OGD OGD OP PVT UA UATU UAJUAJUATUATUATUATUATUAT UATUAT NEWW HH 2 C Y2 GRCRW2W L 52 51 T1 T2 I2 C Y2 G RC RW2W L S2 S1 T1 T2 INSTALLATION INDOOR AIR QUALITY EQUIPMENT WIRING DIAGRAMS DEHUMIDIFIER WIRING HUMIDIFIER WIRING MOO OOD OO OGQOOOQOOSO MOO OOD 0 O OG OOGQOOPO LATA TAN TA HWN TATA LA AJ UAJ VAT UATUAJ VAT TATA I2 C Y2 G RC RW2W L S2 S1 T1 T2 VENTILATION WIRING TRANSFORMER NORMALLY CLOSED DAMPER DOOD ODO DO OOD OOD OP 12 C Y2 G RC R W2W L 52 S1 T1 T2 12 11 O B Y Y2 G RC R W2W L S2 S1 T1 T2 Note The 11 12 output is a dry contact closure The humidifier wiring diagram assumes the control is powering solenoid valve The dehumidifier wiring diagram is for a normally open dry contact input The ventilation diagram assumes the control is for a normally closed damper Please see the individual humidifi
14. avings Enable or disable auto daylight savings Off March second Sunday in March to the irst Sunday in November April first Sunday in April to the last Sunday in October SETUP amp TESTING INDOOR AIR QUALITY SYSTEM SETTINGS TABLES The following tables contain the Indoor Air Quality system settings and their details Default settings are shown in bold Some settings are only present dependent upon the value of other settings The use of the included outdoor temperature sensor recommended enables additional Indoor Air Quality functionality If the outdoor temperature sensor was not enabled in the HVAC system settings HVAC system setting 11 outdoor sensor will be presented prior to entering the Indoor Air Quality system settings Please refer to the Model 8620 Owner s Manual for further information about thermostat features Air Cleaning System Settings Table Factory default setting bold System setting Description and setting range Air Cleaner Installed Selects if an air cleaner is installed If set to no no other No air cleaning settings will be available Yes Change Air Filter Reminder The period for displaying the Change Air Filter message Off 1 to 12 months or Off to disable Humidifier System Settings Table Note A humidifier can only be System setting Humidifier Installed Humidifier Mode scription Selects if a humidifier is installed If set to no no other humidifier
15. cumulated 1 more rapid staging of equipment comfort run time 5 slower staging of equipment economy 21 Progressive Recovery Enable or disable progressive recovery Disable Enable 28 Low Balance Point Outdoor temperature low balance point This 20 F 6 C option is only displayed if the outdoor sensor is 10 F to 50 F 12 C to 9 C or OFF to enabled ignore 29 High Balance Point Outdoor temperature high balance point This 65 F 18 C option is only displayed if the outdoor sensor is enabled Select weekly program format 40 F to 85 F 3 C to 18 C or OFF to ignore 7 Day Mon Tue Wed Thu Fri Sat Sun 5 1 1 weekdays Saturday and Sunday 5 2 Weekdays weekdays and weekends Non Prog 32 Events Per Day umber of program events per day Four Two 33 Reset Service Reminders Clears the Change Air Filter and HVAC and No Dehumidifier Service reminders if they are active Yes and resets the start date to the current date Clears the Change Water Panel reminder if it is active If the reminder is set to timed the clock will be reset 37 HVAC Service Reminder The period for displaying the HVAC Service Off Reminder message to 12 months or Off to disable 38 Constant Backlight Enable constant low intensity backlight when Disable 24VAC is present Enable 39 Backlight Intensity Backlight intensity as a percentage of full on 00 Percent 0 to 100 Percent 40 Auto Daylight S
16. ent configuration Dehumidification equipment test Press NEXT to enter the first installation test or Ventilation equipment test CANCEL to exit Inside 7 o 39 HUMIDITY TEMPERATURE Outside 5 58 _ _o _ OUTDOOR TEMPERATURE HERT CODL EQUIPMENT 2 57 IE CONFIGURATION SETUP amp TESTING SYSTEM TEST MENU CONTINUED Each equipment test will begin with the selection of turning on the output or stage as shown below Press or W to change the selection Press NEXT to accept the selection and proceed to the next step If YES is selected the thermostat will test the corresponding output If NO is selected the thermostat will proceed to the next step Inside Cor 28 Outside DU 58 EQUIPMENT TEST 1 HEAT SELECTION TEMPERATURE TURN HEAT 1 UN YEG NO A gt While the equipment test is active the corresponding test information will be shown Press NEXT to accept the selection and proceed to the next test selection Outside o 38 TEMPERATURE 1L C C Cooling Fan On EQUIPMENT TEST COOL X SELECTION HUMIDITY OUTDOOR TEMPERATURE TEST TO BE RUN HUMIDITY OUTDOOR EMPERATURE OUTPUT STATUS EST THAT S ACTIVE SETUP amp TESTING SYSTEM TEST TABLES Heat Cool Heating Equipment Test Heat Type
17. ential 1st stage differential 1 F 0 5 C F to 9 F 0 5 C to 4 5 C 17 Second Stage Differential 2nd stage differential 1 F 0 5 C F to 9 F 0 5 C to 4 5 C 8 Third Stage Differential 3rd stage differential 1 F 0 5 C F to 9 F 0 5 C to 4 5 C SETUP amp TESTING HVAC INSTALLER SYSTEM SETTINGS TABLE CONTINUED System setting Description Factory default setting bold and setting range 19 Fourth Stage Differential 4th stage differential 1 F 0 5 C 1 F to 9 F 0 5 C to 4 5 C 20 Heat Blast Enables the Heat Blast feature Disable Enable 21 Blast Offset Amount of heating when Heat Blast is initiated 3 F 2 C 3 F to 5 F 2 C to 3 C 22 Screen Lockout Screen lockout level Override lockout by holding Off MENU for 7 seconds Part Full 23 Partial Lockout Type Select lockout type Only available when screen Fan Mode Setpt lockout is set to partial Fan Setpoints Setpoints Only 30 Program Format 24 Max Temp Setpoint Select temperature setpoint limits Only available 3 degrees Change In Lockout when screen lockout is set to partial 0 to 20 degrees 41 Max Dehum Setpoint Select dehumidification setpoint limits Only 5 Percent RH Change In Lockout available when screen lockout is set to partial 0 to 15 Percent RH 25 Stage Rate Accumulation of equipment run time in equipment 2 staging determination 1 to 5 or OFF to ignore ac
18. er and HVAC service reminders Programmable fan control with fan circulation mode Easy to use temperature control can override program schedule at any time Progressive recovery ensures proper temperature at he start of a program event Built in compressor protection prevents damage to your equipment e System test mode SPECIFICATIONS Environment Temperature Operating 32 to 120 F 0 to 48 9 C Shipping 30 to 150 F 34 4 to 65 5 C Relative humidity Operating 596 to 9096 R H non condensing Electrical Operating voltage 24VAC 18 30VAC Maximum 2 5A total 1 0 single output Maximum surge current 5A Power supply Dual power Can be battery or 24VAC powered When both the sources are available battery will be used as back up power Battery power Battery power AA size alkaline battery x 2 Battery life Approximately 1 year Thermal Outdoor amp Remote temperature sensor aximum distance 300 feet Room temperature measurement Display range 32 to 99 F 0 to 40 C Outdoor temperature measurement Display range 20 to 130 F 30 to 55 C Setpoint temperature range Heat 40 to 90 F 4 to 32 C Cool 50 to 99 F 10 to 37 C Setpoint humidity range Humidification 10 to 50 R H Dehumidification 40 to 90 R H P O Box 1467 Madison WI 53701 1467
19. er dehumidifier or ventilation installation instructions for product specific wiring details SETUP amp TESTING EQUIPMENT TYPE SELECTION SWITCH SW1 This thermostat has the option of being used in heat pump or heat cool systems Switch SW1 located on the back of the thermostat s face is used to select this option This setting is displayed in the Installer System Settings under Equipment Type Note Thermostat reboots within 10 seconds after switch position is changed INSTALLER SETUP MENU 5 1 HEAT COOL HEAT PUMP SS HOW TO ENTER THE INSTALLER SETUP MENU AND SELECT EQUIPMENT TO SETUP In the Installer Setup HVAC or Indoor Air Quality setup can be selected If Indoor Air Quality setup is selected the user can then select to set up Air Cleaning Humidification Dehumidification or Ventilation Press MODE to set system to OFF Press MENU to enter main menu Press and hold SETUP for seven seconds INSTALL SETUP appears Press INSTALL SETUP to enter installer setup menu SET THERMOS A Next m MEI NU INI T I CHANGE SYSTEM SETTINGS SETTING SETTING DESCRIPTION NUMBER SETTING OPTIONS nmn EQUIPMENT Type DU L HERT EDOL Back A Next Pa 40 P Press or W to adjust the option Press MENU to exit Press NEXT to select option
20. message center will Only available if fresh air setup is set to ASHRAE To Very Hot Humid display REMOVE BUTTON and 9 0 mur mm determine what region you are in refer to the map below Very Cold the options of NO and YES 17081 11 ASHRAE Cycle Time Displays the Fresh Air Time calculated by the ASHRAE Minutes Hour NO will be flashing standard Only displayed if fresh air setup is set to ASHRAE Step 4 Press or W to select YES Note In ASHRAE set up temperature and humidity limits are disabled Step 5 Press DONE e a Note Refer to manuals for humidifier dehumidifier air cleaner and ventilation products for recommended Step 6 The button is now removed installation and operation Note Once the button is removed it can be brought back by installing the corresponding Indoor Air Quality feature see pages 10 12 CLIMATE MAP FOR ASHRAE FRESH AIR SETUP SYSTEM TEST MENU The system test menu is used to test a system after installation The outputs of the thermostat can be manually activated to test their function The instructions below show how to enter the test mode and turn outputs on and off HOW TO ENTER THE SYSTEM TEST MENU SYSTEM TEST STEPS Press MODE to set system to off Heating equipment test Press and hold FAN and MODE for three seconds Cooling equipment test to enter system test mode Fan equipment test The first screen of the installer test displays the Humidification equipment test equipm
21. nal Check the cooling system to find the cause of the problem Check for loose or broken wires between the hermostat and the cooling equipment FAN DOES NOT TURN ON IN A CALL FOR HEAT Check System Setting 05 Fan Control to make sure he fan control is properly set to match the type of system see page 8 HEAT PUMP ISSUES COOL AIR IN HEAT MODE OR WARM AIR IN COOL MODE Check System Setting 31 0 B Operation to make sure the reversing valve operation matches the heat pump HEAT COOL BOTH ON AT SAME TIME e Check SW1 Equipment Type to make sure it is set to match the installed heating cooling equipment see page 8 Check to make sure heating and cooling wires are not shorted together HEATING EQUIPMENT IS RUNNING IN COOL MODE e Check SW1 Equipment to make sure it is set to match the installed heating cooling equipment see page 8 HEATING IS NOT DISPLAYED Check Installer System Setting number 01 Control Setup is set correctly Change the System Mode to Heat and set the temperature level above the current room temperature COOLING IS NOT DISPLAYED Check Installer System Setting number 01 Control Setup is set correctly Change the System Mode to Cool and set the temperature level below the current room temperature HUMIDIFIER DOES NOT OPERATE IN AUTO MODE Check Installer System Setting number 11 Outdoor Sensor is set to yes Verify that the outdoor senso
22. of the 24VAC transformer in order for the system fault and emergency heat indicators to operate The thermostat has a memory backup that saves the hermostat settings in case of a power interruption The system settings will be retained but the clock will reset after 90 seconds with no battery or AC power The reset button located under the battery cover can be used to reset the thermostat to factory defaults The system settings will also be reset to default Note The reset button is disabled when the thermostat is removed from the wall for programming WIRING TERMINAL 5 2 C HOY Y2 GRCRW2W L S281T1 T2 Se2seose2Se2Ss90S O O O Wire specifications 18 24 gauge thermostat wire Installation notes Ensure power at the HVAC equipment is off Loosen screw terminals insert stripped wire and re tighten Push the excess wire back into the opening and plug the wall opening to prevent drafts RESET ye I1 amp I2 Indoor Air Quality control output Common optional when powered by batteries 0 B Reversing valve Y 1st stage cooling compressor Y2 2nd stage cooling compressor G Fan RC 24VAC supply cooling R 24VAC supply heating W2 2nd stage heat auxiliary W 1st stage heat auxiliary L
23. on ASHRAE time will be calculated using the ASHRAE recommendations If Timed set up is selected the hourly ventilation time will be determined based on the Fresh Air Time value Fresh Air Time Selects how many minutes per hour that ventilation will be 30 MIN HR active Only available if fresh air setup is set to timed 0 to 60 MIN HR High Limit Outdoor Selects if ventilation is disabled if the outdoor temperature No Temp exceeds the outdoor high limit Only available if fresh air setup Yes is set to timed and an outdoor temperature sensor is installed Outdoor High Limit Sets the high temperature limit for ventilation Only available if 100 F 38 C high limit outdoor temp set to yes 90 F to 100 F 32 C to 38 C Low Limit Outdoor Temp Selects if ventilation is disabled if the outdoor temperature No is set exceeds the outdoor low limit Only available if fresh air setup Yes to timed and an outdoor temperature sensor is installed Outdoor Low Limit Sets the low temperature limit for ventilation Only available if low limit outdoor temp set to yes 10 F 11 C 10 F to 30 F 23 C to 1 C High Limit Indoor RH Selects indoor RH limit Only available if fresh air setup is set to timed Yes ventilation is disabled if the indoor RH exceeds the Indoor RH Limit Sets the high indoor RH limit for ventilation Only available if high limit indoor RH is set to yes 60 50 to 70
24. r is functioning correctly If the sensor is functioning correctly the outdoor temperature will display in the outdoor temperature location see Home Screen on page 17 for the location ERROR CODES Error code Message f the thermostat enters an error mode all outputs are turned off The thermostat attempts to recover every 10 minutes f the error does not clear use the reset button This will return all settings back to factory default Error Description 01 Open temperature sensor circuit SENSOR ERROR 02 Shorted temperature sensor circuit 04 EEPROM ERROR Error in permanent memory THERMOSTAT FEATURES Indoor air quality control Humidification automatic or manual control Dehumidification Event Based air cleaning Ventilation with temperature and humidity limits Temperature control e Heat Blast raises the room temperature 3 F to 5 F arge touch screen with adjustable backlight constant backlight option available Message center provides feedback and instructions 7 day programmability or separately programmable weekday weekend schedules Thermostat can be removed from the wall for easy programming batteries must be installed Dual power option 24VAC or battery Front battery door access for fast easy replacement Displays room temperature room humidity emperature setting and outdoor temperature Air filter humidifier dehumidifi
25. rilaire Model 8620 Thermostat with Event Based Air Cleaning and Humidity or Ventilation Control a Uw Safety amp Installation Instructions READ AND SAVE THESE INSTRUCTIONS TABLE OF CONTENTS INSTALLATION Installation location recommendations Outdoor temperature sensor included Remote temperature sensor optional Thermostat Power amp reset Wiring WIRING DIAGRAMS Conventional heat cool single transformer Conventional heat cool two transformer Heat pump single Heat pump two transformer Indoor Air Quality equipment dehumidifier Indoor Air Quality equipment humidifier Indoor Air Quality equipment ventilation 23 SETUP amp TESTING Equipment type selection switch SW1 7 Installer setup 7 Change system 7 HVAC installer system settings table 8 9 Indoor Air Quality system settings tables 10 Air cleaning sytem settings table 10 Humidifier system settings table 10 Dehumidifier system settings table 11 Ventilation system settings table 11
26. rvice The period for displaying the Dehum Service Off Reminder Reminder message Only available if dehumidifier 1 to 12 months or Off to disable control is set to whole home Dehumidifier Overcooling Selects the amount of overcooling that can occur 3 F 1 5 C Limit for dehumidification Only available if dehumidifier 1 F to 3 F 0 5 C to 1 5 C control is set to air conditioner Dehumidify in Vacation Selects if dehumidification with the air conditioner is No Mode done in Vacation Mode Only available if dehumidifier Yes control is set to air conditioner Vacation Dehumidifier Low Sets the lowest temperature the air conditioner will cool 75 F 24 C to meet RH setpoint in Vacation Mode Only available if dehumidifier control is set to air conditioner Ventilation System Settings Table 70 F to 85 F 21 C to 29 C Note Ventilation can only be installed if humidification is not installed and dehumidifier control is not set to whole home Factory default setting bold System setting Description and setting range Fresh Air Vent Installed Selects if ventilation is installed No If set to no no other ventilation settings will be available Yes Fresh Air Forces Fan Selects if ventilation forces the fan on No Yes Fresh Air Setup Selects if ventilation is configured through the ASHRAE setup Timed or Timed If ASHRAE setup is selected the hourly ventilati
27. settings will be available Selects auto or manual mode Auto mode controls humidity based on the humidity setting and outdoor temperature Manual mode controls humidity based on the RH setpoint Auto mode is only available if outdoor sensor is set to yes installed if ventilation is not installed and dehumidifier control is not set to whole home Factory default setting bold and setting range No Yes Auto Manual Humidity Setpoint Deadband Select the minimum difference between the humidifier and dehumidifier setpoints Only available if humidifier mode is set to manual and dehumidifier control is set to air conditioner Available in both set ups 10 Percent RH 10 to 20 Percent RH Humidifier Operation Selects when humidification is allowed to occur relative to heating and fan operation Heat Only Heat or Fan Forces Fan Change Water Panel Reminder Selects the when the Change Water Panel message is displayed Off 1 Per Season 2 Per Season 300 Hours 600 Hours Reminder Month Change Water Panel Reminder set to 1 per Season First Reminder Month Change Water Panel Reminder set to 2 per Season Change Water Panel Reminder set to 1 per Season Determines the month the Change Water Panel message is displayed Change Water Panel Reminder set to 2 per Season Determines the first month the Change Water Panel message is displayed October November December
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