8
WATER-SOURCE HEAT PUMPS
ATA11U03
Rev.:09/16/13
willbedisplayedintheset-pointlocation.
Toinitiatefactorydefaults,theinstallerthenpressesthe
modebuttonuntilthe10isashing.Theinstallerthen
pressesandholdsthedownbutton.Whilethedown
buttonisheld,the10willcountdownfrom10tozeroat
arateof2countspersecond(5secondstotal).Whenthe
valuereacheszero,alldisplaysegmentsareturnedonfor
vesecondsandthefactorydefaultsarerestored.Ifat
anytimeduringthecountdowntheinstallerreleasesthe
downbutton,thecountdownterminatesandthedisplay
returnstothestartingvalueof10.
Exiting Conguration Mode-Toexittheconguration
mode,pressthefanbutton.
SYSTEM START-UP AND CHECKOUT
Installer Test Mode—Thisthermostathasabuilt-
ininstallertestcapability.Itallowseasyoperationof
equipmentwithoutdelaysorsetpointadjustmentsto
forceheatingorcooling.Toenterinstallertestmode,
pressandholdthefanbuttonfor15seconds(after10
secondsinstallercongurationisentered;acontinuous
15secondsandinstallertestisentered).Atthestartof
installertest,themodeisOff,thefanis“fanauto”and
thesetpointdisplaydisplays“InS.”
NOTE: Unit must be powered up and CXM/DXM
in test mode to disable unit timers or compressor
not energized for more than 5 minutes.
Themodebuttonisusedtochangethesystemoperating
modetotesttheheatingandcoolingequipment.Auto
modeisnotavailableduringinstallertest.
Whenthemodeissettoheat,“H”isdisplayed,heating
isenergizedfor180seconds.Duringtheinstallertest
operation,the“on”iconisdisplayed.
Attheendoftheequipmenttestcyclethemodereturnsto
OFF.
TheLCDdisplaycountsdownthetimeremaining
(inseconds,from180to0)foreachstagewhenthe
equipmentisenergized.SeeFig.5.
Thesameprocedureisrepeatedforthecoolmode.“C”
isdisplayedwhencoolingisactive.
Thetestofaheatingorcoolingcyclecanbeterminated
beforethetimercountsdowntozerobypressingthe
modebutton.
Pressingthefanbuttonalternatesthefanselection
betweenfanautoandfanonandthefanoutputfollows
accordingly. There is no timer associated with the installer
testingofthefanoperation.
Terminating Installer Test—After15minutesofno
buttonpressesbytheinstaller,installertestisterminated.
Pressingtheupbutton,downbutton,orcycling
thermostatpoweratanytimeduringinstallertest
terminatestheinstallertestandreturnsthethermostatto
normaloperation.
Figure 5: Installer Test Mode
Checklist—Thefollowinginstallerchecklistshouldbe
performedaftercompletinginstallation:
1. Runequipmentthroughseveralheatingandcooling
cyclestoensureproperoperation.Tooperatethe
thermostatinitsnormaloperatingmode,consultthe
UserOperatingManual.
2. Iftheequipmentistobeleftinoperation,the
setpointsandoperatingmodemustbeproperly
selected.
3. Putawaytoolsandinstrumentsandcleanupdebris.
4. ReviewandleavethismanualandUserOperating
Manualwithowner.