Daikin 668375401 Installation, Operation & Application Manual

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Brand: Daikin

Category: Thermostat

Type: Installation, operation & application manual for Daikin 668375401

Pages: 2

Download Daikin 668375401 Installation, operation & application manual

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Package Contents/Tools Required
Package includes: Thermostatonbase,thermostatcover,wiringlabels,screwsandwallanchors,
Installation,OperationandApplicationGuide
Tools required for installation:Drillwith3/16”bit,hammer,screwdriver
Important Safety Information
WARNING!
:Always turn off power at the main power supply before installing, cleaning, or
removing thermostat.
• Thisthermostatisfor24VAC/VDCapplicationsonly;donotuseonvoltagesover30VAC/VDC
• Donotshortacrossterminalsofsystemcontroltotestoperation;thiswilldamageyourthermostat
andvoidyourwarranty
• Allwiringmustconformtolocalandnationalelectricalandbuildingcodes
• Usethisthermostatonlyasdescribedinthismanual
Specifications
Electrical rating: •24VAC/VDC(18-30VAC/VDC)
•1ampmaximumperterminal
•4ampmaximumtotalload
Temperature control range: 45°Fto90°F(7°Cto32°C)Accuracy:±1°F(±0.5°C)
System congurations:2-stageheat,2-stagecool
Timing:
BacklightOperation:
13secondsaftermodechangeorbuttonpress
Terminations:-C,+R,W1,Y1,W2,Y2,G,O,S1,S2
To Remove Existing Thermostat
ELECTRICAL SHOCK HAZARD –Turn off power at the main service panel by removing
the fuse or switching the appropriate circuit breaker to the OFF position before removing the
existing thermostat.
1. Turnoffpowertotheheatingandcoolingsystembyremovingthefuseorswitchingtheappropriate
circuitbreakeroff.
2. Removecoverofoldthermostat.Thisshouldexposethewires.
3. Labeltheexistingwireswiththeenclosedwirelabelsbeforeremovingwires.
4. Afterlabelingwires,removewiresfromwireterminals.
5. Removeexistingthermostatbasefromwall.
6. Refertothefollowingsectionforinstructionsonhowtoinstallthisthermostat.
To Install Thermostat
ELECTRICAL SHOCK HAZARD –Turn off power at the main service panel by removing
the fuse or switching the appropriate circuit breaker to the OFF position before removing the
existing thermostat.
IMPORTANT:Thermostat installation must conform to local and national building and
electrical codes and ordinances.
Note:
Mountthethermostataboutvefeetabovetheoor.Donotmountthethermostat
onanoutsidewall,indirectsunlight,behindadoor,orinanareaaffectedbyavent
orduct.
1. Turnoffpowertotheheatingandcoolingsystembyremovingthefuseorswitchingtheappropriate
circuitbreakeroff.
2. Toremovecover,insertandtwistacoinorscrewdriverintheslotsonthesidesofthethermostat.
3. Putthermostatbaseagainstthewallwhereyouplantomountit(Besurewireswillfeedthrough
thewireopeninginthebaseofthethermostat).
4. Marktheplacementofthemountingholes.
5. Setthermostatbaseandcoverawayfromworkingarea.
6. Usinga3/16”drillbit,drillholesintheplacesyouhavemarkedformounting.
7. Useahammertotapsuppliedanchorsinmountingholes.
8. Alignthermostatbasewithmountingholesandfeedthecontrolwiresthroughwireopening.
9. Usesuppliedscrewstomountthermostatbasetowall.
10. Insertstripped,labeledwiresinmatchingwireterminals.See“WiringDiagrams”sectionofthis
manual.
CAUTION!
:
Besureexposedportionofwiresdoesnottouchotherwires.
11. Tightenscrewsonterminalblock.Gentlytugwiretobesureofproperconnection.Doublecheck
thateachwireisconnectedtotheproperterminal.
12. Sealholeforwiresbehindthermostatwithnon-ammableinsulationorputty.
13. Replacecoveronthermostatbysnappingitinplace.
14. Turnonpowertothesystematthemainservicepanel.
15. Testthermostatoperationasdescribedin“TestingtheThermostat”.
Terminal Designator Descriptions
Parts Diagram
R12
W1
Y1 W2 O
S1
S2
668375401
Y2
BacklitDisplay
Reset
CongurationSwitches ModeSwitch FanSwitch
Configuration Mode
ThecongurationmodeisusedtosettheDaikinAuto-changeoverElectronicThermostattomatch
yourheating/coolingsystem.
ToconguretheDaikin
Auto-changeoverElectronicThermostat
,perform
thefollowingsteps:
1. Removethecoverofthethermostatbygentlypullingononeofthecorners.
2. S
imultaneouslyholdtheSW5andSW6buttonsinfor5secondswhiletheDaikin
Auto-changeover
ElectronicThermostat
isinOFFmode.
3. Pressthe or buttontochangesettingswithineachscreen.
4. Pressthe
SW6
buttontoadvancetothenextscreen.
Note:The
SW5
button will return you to the previous screen.
5. Toexitcongurationmode,slidetheModeswitchtoHeatorCool.
FILTER
DIFF
ROOM
SET
REMOTE
Conguration Mode Settings
ThesetupscreensforCongurationModeareasfollows:
1. Heat Pump and Non Heat Pump –Pressthe
or buttontocongureas
heatpump,ornon-heatpumpsystem.Setto“O”forallDaikinWSHP,PTAC,
PTHPandUVunits.
Pressthe
SW6
buttontoadvancetothenextscreen.
FILTER
DIFF
ROOM
SET
REMOTE
2. Setto“g”.
Pressthe or buttontosetto“g”.
Pressthebuttontoadvancetothenextscreen.
FILTER
DIFF
ROOM
SET
REMOTE
3. Temperature Scale (F or C) –ChooseFahrenheitorCelsius.
Pressthe or buttontoselect.
Pressthe
SW6
buttontoadvancetothenextscreen.
-C–24VAC/VDCcommon
+R–24VAC/VDChot
W1–1ststageheat
Y1–1ststagecool
Remote Sensor Installation (Optional)
Requires Daikin Remote Sensor Part Number 667720401
1. Removecoverfromremotesensorhousing.
2. Selectanappropriatelocationformountingtheremotesensor.
3. Mountremotesensorunitusinghardwareprovided.
4. Installtwostrandshieldedwirebetweenremotesensorandthermostat.Shieldedwiremustbe
used.Donotrunremotesensorwireinconduitwithotherwires.
• Wire 1shouldrunbetweentheS1terminalonthethermostatandtheS1terminal
ontheremotesensor
• Wire 2shouldrunbetweentheS2terminalonthethermostatandtheS2terminal
ontheremotesensor
• ConnecttheshieldingofthewiretotheS2terminalonthethermostat
5. Disablethemainsensor(R12)onthethermostatbycuttingitfromthecircuitboard.
FILTER
DIFF
ROOM
SET
REMOTE
FILTER
DIFF
ROOM
SET
REMOTE
5. 2
nd
StageTemperature Differential
(1°Fto6°F)(0.5°Cto3.0°C)
Setthenumberofdegreesbetweenwhenstage1turnsonand
whenstage2turnson.
Pressthe
or buttontosetdifferentialvalue.
Pressthe
SW6
buttontoadvancetothenextscreen.
FILTER
DIFF
ROOM
SET
REMOTE
FILTER
DIFF
ROOM
SET
REMOTE
4. 1
st
StageTemperature Differential
(1°Fto3°F)(0.5°Cto1.5°C)
Setthenumberofdegreesbetweenyour“setpoint”temperature
andyour“turnon”temperature.
Pressthe
or buttontosetdifferentialvalue.
Pressthe
SW6
buttontoadvancetothenextscreen.
W2–2ndstageheat
Y2–2ndstagecooling
G–Fan
O–Override
Wiring Diagram
24 VAC Common
Tenant Override
Fan
Cool 1
Cool 2
Heat 1
Heat 2
Alarm Output
24 VAC
C
O
G
Y1
Y2
W1
W2
A
R
Override (Optional)
Thermostat
Terminals
TB2
MicroTech III Unit Control Board
Low Voltage Terminal Strip (Circuit 1)
Non-Programmable, Auto or Manual Changeover (P/N 668375401)
Two Stage Heat/Two Stage Cool, Night Setback and Override Feature
Note: An additional conductor is required between “O” terminals for the override
feature to work.
Installation, Operation & Application Guide
Version B: 10-15-13
Daikin P/N (668375401)
2 Heat/2 Cool, Auto or Manual Changeover, Hardwired
Non-Programmable Electronic Thermostat
• Configurable
• Two Stage Heat / 2 Stage Cool
Systems
• Backlit Display
• Field Temperature Calibration
• Status Indicator Light
• Relay Outputs (minimum voltage drop
in thermostat)
• Night Set-Back Override
• Reset