T -309
Safety-3
CAUTION
When Pre-Trip key is pressed, economy, dehumidification and bulb modewill be deactivated. At the
completion of Pre-Trip activity, economy, dehumidification and bulb mode must be reactivated.
CAUTION
When a failure occurs du ring automatic testing the unit will suspend operation awaiting operatorin-
tervention.
CAUTION
When Pre--Trip test Auto 2 runs to completion without being interrupted, the unit will terminate pr e-
trip and display“Auto2”“end.”Theunitwillsuspend operationuntiltheuserdepresses theENTER
key!
CAUTION
Topreventtrappingliquid refrigerantin themanifoldgaugesetb esuresetis broughttosuction pres-
sure before disconnecting.
CAUTION
Thescrollcompressorachieves lowsuction pressurevery quickly.Do notuse thecompressor toevacu-
ate the system below zero psig. Never operate the compressor with the suction or discharge service
valvesclosed(frontseated). Internaldamagewillresult fromop eratingthecompressorin a deepvacu-
um.
CAUTION
Use only Carrier Transicold approved Polyol Ester Oil (POE) -- Mobil ST32 compressor oil with
R-134a.Buyinquantitiesofoneq uartorsmaller.Wh enusin gthishygroscopicoil, immediatelyreseal.
Do not leave container of oil open or contamination will occur.
CAUTION
Takenecessarysteps(placeplywoodovercoiloruseslingonmotor)topreventmotorfromfallinginto
condenser coil.
CAUTION
DONOTdisassemblepistonfromNEWsuctionmodulatingvalvepowerheadassembly. Doing somay
result in damage to piston.
CAUTION
The unit must be OFF whenever a programming card is inserted or removed fr omthe controllerpr o-
gramming port.
CAUTION
Do not allow moistur e to enter wire splice are a as this may affect the sensor resistance.
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