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Aprilaire 61000652C 8400 Tstat manual

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  • Page 1

    840 0 Series Thermostats READ AND SAVE THESE INSTRUCTIONS S a f e t y & Installation Instructions 61000652C 8400 Tstat Install.indd 1 10/13/09 11:08:56 AM[...]

  • Page 2

    2 Installation location recommendations ................................................................ 3 Outdoor temperature sensor (optional) ................................................................ 4 Thermostat mounting .............................................................................. 5 Power & reset options ...........[...]

  • Page 3

    3 INST ALLA TION INST ALLA TION LOCA TION RECOMMENDA TIONS Thermostat should be mounted: • On aninterior wall,ina frequentlyoccupied space. • Approximately 5‘above floor . • At least18” fromoutsidewall. • Thermostat canbe mountedtoa verticaljunc[...]

  • Page 4

    4 OUTDOOR TEMPERA TURE SENSOR (OPTIONAL) Outdoortemperature canbe measuredby attachingan 8052sensor tothe S1and S2terminals.System setting #05(Remote sensor)is usedto enablesensor . Heat pump models can use the outdoor temperature to effectivelyutilize theheat[...]

  • Page 5

    5 THERMOST A T MOUNTING 1. Remove theback ofthethermostat, bypressing the tabon thebottom ofthe unit. 2. Pull wiresthrough theopeningon theback ofthe thermostat. 3. Position andlevel thebackof thethermostat onwall and mark t[...]

  • Page 6

    6 WIRING TERMINAL 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wal[...]

  • Page 7

    7 WIRING – MODEL 8463 & 8444 SINGLE TRANSFORMER (USE JUMPER WIRE) INST ALLA TION C G Y W R S1 S2 RC HEA TING COOLING FAN OUTDOOR TEMP SENSOR JUMPER TRANSFORMER WIRING – MODEL 8463 & 8444 TWO TRANSFORMERS (REMOVE JUMPER WIRE) C G Y W R S1 S2 RC HEA TING COOLING FAN OUTDOOR TEMP SENSOR HEA TING TRANSFORMER COOLING TRANSFORMER 61000652C 84[...]

  • Page 8

    8 WIRING – MODEL 8465 & 8446 SINGLE TRANSFORMER (USE JUMPER WIRE) INST ALLA TION AUX HEA TING COMPRESSOR FAN REVERSE VAL VE FAUL T DETECT OUTDOOR TEMP SENSOR JUMPER TRANSFORMER C G Y W R L S1 S2 O/B RC WIRING – MODEL 8465 & 8446 TWO TRANSFORMERS (REMOVE JUMPER WIRE) AUX HEA TING COMPRESSOR FAN REVERSE VAL VE FAUL T DETECT OUTDOOR TEMP S[...]

  • Page 9

    9 WIRING – MODEL 8466 & 8448 SINGLE TRANSFORMER (USE JUMPER WIRE) FOR HEA T/COOL SYSTEM INST ALLA TION 1st HEA TING 1st COOLING FAN 2nd HEA TING 2nd COOLING OUTDOOR TEMP SENSOR NOT USED NOT USED JUMPER TRANSFORMER C G Y W R L S1 S2 O/B W2 Y2 RC WI RI NG – MO DEL 8 46 6 & 844 8 TWO TR AN SF OR ME RS (R EM OV E JU MPER WIRE ) FOR HEA T/CO[...]

  • Page 10

    10 INST ALLA TION WIRING – MODEL 8466 & 8448 SINGLE TRANSFORMER (USE JUMPER WIRE) FOR HEA T PUMP SYSTEM 1st AUX HEA TING 1st COMPRESSOR FAN REVERSE VAL VE FAUL T DETECT 2nd AUX HEA TING 2nd COMPRESSOR OUTDOOR TEMP SENSOR HEA T PUMP TRANSFORMER C G Y W R L S1 S2 O/B W2 Y2 RC JUMPER 1st AUX HEA TING 1st COMPRESSOR FAN REVERSE VAL VE FAUL T DETE[...]

  • Page 11

    11 SYSTEM SETUP INSTRUCTIONS How to enter the system setup menu to change system settings Press repeatedly until system is set to OFF . Press and hold and for three seconds. Thescreen ofthe firstsetting willbedisplayed. SETUP & TESTING Press or to change the setting. Press to changeto thenext option.[...]

  • Page 12

    12 SETUP & TESTING SYSTEM SETUP INSTRUCTIONS (CONTINUED) Thermostatmodels 8448& 8466have 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.System settingnumber?[...]

  • Page 13

    13 SETUP & TESTING System setting Setting range, default in bold 00  Equipmenttype (8466,8448) (Set by SW1) 0: heat/cool 1: heatpump 01 T emperature scale 0 : Fahrenheit 1: Celsius 02 Fan control in heating 0 : Gas or oil furnace (Equipment controls fan) 1: Electric(Thermostat controlsfan) 0[...]

  • Page 14

    14 SETUP & TESTING System setting Setting range, default in bold 09 1st stage differential 1°F (0.5°C) 1°Fto 4°F(0.5°C to2°C) 10  2ndstage differential(8448, 8466) 1°F (0.5°C) 1°Fto 4°F(0.5°C to2°C) 11  3rdstage differential(8448HP ,8466HP) 1°F (0.5°C) 1°Fto [...]

  • Page 15

    15 SETUP & TESTING System setting Setting range, default in bold 16   LowBalance Pt.(8446,8448HP , 8465,8466HP) Systemsetting 05must beenabled 20°F (–7°C) 1°Fto 35°F(–17°C to1°C) or“OFF”to disable 17   HighBalance Pt.(8446,8448HP , 8465,?[...]

  • Page 16

    16 SYSTEM TEST MODE Thesystem testmode isused totesta systemafter installation.The outputsof thethermostatcan bemanually activatedone ata timeto testtheirfunction. Thefollowing instructionsshow howto enterthetest modeand turn o[...]

  • Page 17

    17 How to enter the system test menu Press repeatedly until system is set to OFF . Press and hold and for three seconds. Thescreen ofthe firsttest step#50is displayed: SYSTEM TEST MODE (CONTINUED) SETUP & TESTING Press to turnon theoutput (01).Formulti stage output, press  again?[...]

  • Page 18

    18 SETUP & TESTING T est steps for 8444 & 8463 Step Key Input System Setting Display (Output) #2 01 HEA TING ON (W) 01 COOLING ON (Y) 01 FAN ON (G) #50Heat [UP] 0 :Gas ON 1: Elec ON ON [DOWN] #51Cool [UP] ON ON [DOWN] #52 Fan [UP] ON [DOWN] 61000652C 8400 Tstat Install.indd 18 10/13/09 11:09:01 AM[...]

  • Page 19

    19 SETUP & TESTING T est steps for 8448HC & 8466HC Step Key Input System Setting Display (Output) #2 01 HEA TING ON (W) 02 HEA TING ON (W2) 01 COOLING ON (Y) 02 COOLING ON (Y2) 01 FAN ON (G) #50Heat 1st[UP] 0 :Gas ON 1: Elec ON ON 2nd[UP] 0 :Gas ON ON 1: Elec ON ON ON [DOWN] #51Cool 1st[UP] ON ON 2nd?[...]

  • Page 20

    20 T est steps for 8446 & 8465 Step Key Input System Setting Display (Output) #2 #12 01 AUX HEA TING ON (W) 01 COOL/HEA T ON (Y) 01 FAN ON (G) O/B #50Aux [UP] 0 :Gas ON 1: Elec ON ON [DOWN] #51Cool [UP] 0: O ON ON ON 1: B ON ON [DOWN] 0: O ON 1: B #52 Heat [UP] 0: O ON ON 1: B ON ON ON [DOWN[...]

  • Page 21

    21 T est steps for 8448HP & 8466HP Step Key Input System Setting Display (Output) #2 #12 01 AUX HEA TING ON (W) 02 AUX HEA TING ON (W2) 01 COOL/HEA T ON (Y) 02 COOL/HEA T ON (Y2) 01 FAN ON (G) O/B #50Aux 1st[UP] 0 :Gas ON 1: Elec ON ON 2nd[UP] 0 :Gas ON ON 1: Elec ON ON ON [DOWN] #51Cool 1st[UP] 0 :O[...]

  • Page 22

    22 QUICK REFERENCE TO CONTROLS & DISPLA Y NON-PROGRAMMABLE MODELS (8444, 8446, 8448) NOTE: BACKLIGHT ISACTIVA TED WITHFIRST BUTTONPRESSAND AUTOMA TICALL Y TURNSOFF . CURRENTINDOOR TEMPERA TURE SYSTEMMODE SETTING FANSETTING SYSTEMMODE FANSETTING BA TTERYDOOR MESSAGECENTER LOW BA TTER[...]

  • Page 23

    23 QUICK REFERENCE TO CONTROLS & DISPLA Y PROGRAMMABLE MODELS (8463, 8465, 8466) NOTE: BACKLIGHT ISACTIVA TED WITHFIRST BUTTONPRESSAND AUTOMA TICALL Y TURNSOFF . CURRENTINDOOR TEMPERA TURE SYSTEMMODE SETTING FANSETTING SYSTEMMODE FANSETTING BA TTERYDOOR MESSAGECENTER LOW BA TTERY[...]

  • Page 24

    24 THERMOST A T FEA TURES ALL 8400 SERIES THERMOST A TS • Large, clear ,backlit displayiseasy toread –even in the dark. • Displays roomtemperature, temperaturesetting,and optional outdoor temperature. • Dual poweroption (Batteryor24 V AC). • Front[...]

  • Page 25

    25 TROUBLESHOOTING DISPLA Y IS BLANK • Check circuitbreaker andresetif necessary . • Make surepower switchatheating &cooling system is on. • Make surefurnace doorisclosed securely . • If thermostatis batterypowered,make surefresh [...]

  • Page 26

    26 TROUBLESHOOTING COOLING SYSTEM DOES NOT RESPOND (“COOLING” APPEARS ON SCREEN) • Check for24 V AC 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[...]

  • Page 27

    27 SPECIFICA TIONS Electrical Operatingvoltage 24 V AC (18– 30VAC) Current Maximum:2.5A (total),1.0A (singleoutput) Maximumsurge current:5A Power supply Dualpower . Canbe batteryor 24V ACpowered. Whenboth thesources areavailable, batterywillbe usedas?[...]

  • Page 28

    28 SPECIFICA TIONS Thermal Outdoor temperature sensor Maximum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) T emperature setting range Heat:45° to90°F (7°to [...]