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ENVISION RESIDENTIAL INSTALLATION MANUAL
DIP Switch Settings
Priortopoweringunit,ensurethatallDIPswitchesonSW2&SW3aresetproperlyaccordingtothetablesbelow.
FACTORY SETUP DIP SWITCHES (SW3)
DIP
SWITCH
NUMBER
DESCRIPTION OFF POSITION ON POSITION
SW 3- 1
Dual Capacity/Single-Speed
Conguresthecontrolforsingle-speedcompressoroperationordualcapacityopera-
tion.
Dual Capacity Opera-
tion
Single-Speed Operation
SW 3- 2
Zoned/Finish on Second Stage
Thisswitchallowstheunittodownstagewiththethermostatwhenoffandnishwith
second stage when on. Finish on second stage reduces stage changing in recipro-
cating dual capacity compressors.
Normal - All Other
Systems
Finishon2nd-UnzonedDual
Capacity E Series or Premier
2Speed
SW 3- 3
No RPM/RPM
ConguresthecontroltomonitortheRPMoutputofanECM/ECM2blowermotor.
WhenusingIntelliZoneoraPSCfanmotor,thecontrolshouldbeconguredfor“NO
RPM” sensing.
PSCFan/RPMMoni-
toring Disabled
ECM-ECM2Fan/RPM
Monitoring Enabled
SW 3- 4
Electric heat and ECM2
Allows backward compatibility with older Premier Series. In the Off position this
switchallowsolderelectricheatboard(17P501A01)andolderECM(squareend)
compatibility.OnisforallnewerEHboard(17P514A01)andECM2(roundend).
OldEH&OldECM Normal
SW 3- 5
Ondualcapacityunitsthisswitchallowsstagechange:ontheywhenoff,and1
minute delay when on. A delay is required on all reciprocating dual capacity units.
Envision E-Series or Premier
FIELD SELECTION DIP SWITCHES (SW2)
DIP
SWITCH
NUMBER
DESCRIPTION OFF POSITION ON POSITION
SW 2- 1
Service Test Mode
Onthecontrol,allowseldselectionof“NORMAL”or“TEST”operationalmodes.
Testmodeacceleratesmosttimingfunctions16timestoallowfastertroubleshooting.
Test mode also allows viewing the “CURRENT” status of the fault inputs on the LED
display.
Test Mode Normal Speed Operation
SW 2- 2
Freeze Sensing Setting
Allowseldselectionoffreezethermistorfaultsensingtemperaturesforwellwater
(30°F)orantifreeze-protected(15°F)earthloops.
Loop Water Freeze
Protection15°F
Well Water Freeze Protec-
tion30°F
SW 2- 3
Accessory Relay
Allowseldselectionoftheaccessoryrelaytooperatewiththecompressororfan.
Acc Relay Tracks Fan
Acc Relay Tracks Compres-
sor
SW 2- 4
Fan Speed Control
Allowseldselectionofreducedfanspeed(85%ofselectedmediumandhighspeed
–ECMonly)forcoolinginthedehumidicationmode.
DehumidicationFan
Speeds
Normal Fan Speeds
SW 2- 5
Auxiliary Off
Disables 3rd-stage Heating. Full emergency heat would still be available if needed.
Disable Heating
Stage 3
Enable Heating
Stage 3
SW 2- 6
Diagnostics Inputs
AllowsviewingtheinputsfromthethermostattothecontrolboardsuchasY1,Y2,O,
G,W,SL1-InontheLEDdisplay.
Diagnostic Inputs
Viewed at LEDs
Normal Display Viewed at
LEDs
SW 2- 7
Diagnostics Outputs
Allows viewing the outputs from the control board such as compressor, reversing
valve, blower, hot water pump, and loop pump on the LED display.
Diagnostic Outputs
Viewed at LEDs
Normal Display Viewed at
LEDs
SW 2- 8
Thermostat Selection
Conguresthecontrolforapulsedlockoutsignal(ComforTalkandFaultFlashther-
mostats)orcontinuous5VAClockoutsignal.
Pulsed “L” signal Continuous “L” signal
Microprocessor Control (cont.)
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