EngA DJM3

A DJM3
IOM-17 10 of 27 Mar 99 R3
TheDJM3isdesignedtouseeitherofthefollowingasasetpoint:
 ThesetpointmountedonthefaceoftheDJM3(rangeof50‐95°F(10‐35°C)).IftheDJM3face
mountedset‐pointisused,terminals“SPandS”mustbejumpered;or
 TheJohnsonControlsTE6100‐960set‐point(rangeof50‐85°F(10‐29°C)).IftheTE6100‐960isused
asaset‐point,“StoSP”isnotjumperedandtheTE6100mustbewired:
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TABLE7
TE6100Wires DJM3Terminals
Violet(notused) ‐
Red(notused) ‐
Grey WiredtoterminalU
Blue WiredtoterminalM
Orange WiredtoterminalS
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DISCHARGETEMPERATURESENSOR(DTEMP)
TheDJM3usesthedischargesensorforbothtemperaturecontrolandlowlimit.Becauseofthis,the
DJM3willnotoperatewithafaultydischargesensor.Ifthedischargesensorresistanceisgreaterthan
4000‐ohmsorlessthan880‐ohms,theunitwilllockouteitheronlowlimitorbadtemperaturesensor.
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MODULATINGROOMRESET(continuousbloweroperationonly)
DIPswitch3mustbe"on".ThisoptionalsorequiresaTE6100wired:
TABLE8
TE6100Wires DJM3Terminals
Red(notused) ‐
GREY WiredtoterminalV
VIOLET WiredtoterminalX
ORANGE WiredtoterminalY
BLUE WiredtoterminalZ
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IfDIPswitch3isonandtheTE6100isnotwiredtothecorrectDJM3terminals,theDJM3willresetthe
dischargetemperaturedownasitthinksthattheroomsensorisverywarm.Theroomtemperature
requirementscanincreaseordecrease(reset)thecalculateddischargeairset‐point.
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Note:Ifroomresetcalling,the“calculated”dischargetemperaturesetpointwillvaryfromthesetting
of“master”setpoint.
 Theroom‐resetfeatureisactivatedbyDIPswitch3.
 RoomsensorcalibrationpotisRoomCalPot.
 Roomresetbandis3°F(fixed).
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The“roomresetband”meansaroomtemperatureerrorofjust3°Fwillresultinamaximumresetof
thedischargeairsetpoint.Theactualamountreset(indegrees)variesasperboththesettingofPot
ResetRatioandthedischargesetpoint.Thecalculateddischargeairsetpoint(dialsetting+reset)is
limitedbetween48and120°F.
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