Carrier 38GL...G Installation Manual

Contents

38GL...G / 38GLS...G / 38YY...G / 38YYS...GCooling only and heat pump split system outdoor unitsGB - 1ENGLISHCooling only(A/C) Heat pump (H/P) Hi-Wall series Hi-Wall series Console series Cassette series Satellite PowerCooling only Heat pump “42PHQ---N” “42HMC---N” “42VMC---N” “40KMC---N” “40SMC---N” supply38GL(S)018G 38YY(S)018G 42PHQ018N 42HMC018N 42VMC018(A)*N 40KMC018N 40SMC018N38GL(S)024G 38YY(S)024G 42PHQ024N 42HMC024N 42VMC024(A)*N 40KMC024N 40SMC024N38GL028G 38YY-028G — — 42VMC028 N 40KMC028N 40SMC028N 230V ~ 50Hz38GL036G 38YY-036G — — 42VMC036 N 40KMC036N 40SMC036N38GL048G 38YY-048G — — 42VMC048 N 40KMC048N 40SMC048N*(A)= Aluminium versionUnit size Oil type Quantity Drier already installed oncc liquid line of the unit018 - 024 POE 1120 YES028 - 036 POE 1250 YES048 POE 1400 YESTable IFor operation and maintenance instructions of this unit as well as installationinstructions of the indoor unit, refer to the relevant manuals.Contents PageDimensions and weight ................................................................................................................. 2Connections ................................................................................................................................... 2Minimum clearances ...................................................................................................................... 3Operating limits .............................................................................................................................. 3Accessories ................................................................................................................................... 3General information ....................................................................................................................... 4Warnings: avoid ............................................................................................................................. 5Refrigerant connections ................................................................................................................ 6/8Electrical connections ................................................................................................................... 9/10Electrical data ................................................................................................................................ 10Pump down and refrigerant circuit ................................................................................................. 11Unit maintenance ........................................................................................................................... 12Troubleshooting and guide for the owner ....................................................................................... 12ATTENTION INSTALLERS AND SERVICE TECHNICIANS!AIR CONDITIONER WITH R-410A–QUICK REFERENCE GUIDE• R-410A refrigerant operates at 50%-70% higher pressures than R-22. Be sure that servicingequipment and replacement components are designed to operate with R-410A.• R-410A refrigerant cylinders are pink.• R-410A refrigerant cylinders have a dip tube which allows liquid to flow out with the cylinder in avertical position with the valve at the top.• R-410A systems should be charged with liquid refrigerant. Use a commercial type metering devicein the manifold hose in order to vaporize the liquid refrigerant before it enters in the unit.• R-410A, as other HFCs, is only compatible with oils selected by the compressor manufacturer.• A vacuum pump is not enough to remove moisture from oil.• Oils absorb moisture rapidly. Do not expose oil to atmosphere.• Never open system to atmosphere while it is under vacuum.• When the system must be opened for service, break vacuum with dry nitrogen and replace filter driers.• Do not vent R-410A into the atmosphere.• Use only Carrier matching indoor units (Table I).