Installation manual

GB - 1
38GL_M…G
R-410A
Cooling only multisplit system outdoor units
ENGLISH
For operation and maintenance instructions of this unit as well as installation
instructions of the indoor unit, refer to the relevant manuals.
Contents Page
Dimensions and weight ................................................................................................................. 2
Minimum clearances...................................................................................................................... 2
Connections................................................................................................................................... 3
Operating limits .............................................................................................................................. 3
General information ....................................................................................................................... 4
Warnings: avoid ............................................................................................................................. 5
Refrigerant connections ................................................................................................................ 6/8
Electrical connections ................................................................................................................... 9/10
Electrical data ................................................................................................................................ 10
Testing ........................................................................................................................................... 11
Pump down .................................................................................................................................... 11
Check the refrigerant charge ......................................................................................................... 11/13
Unit maintenance........................................................................................................................... 13
Troubleshooting ............................................................................................................................. 14
Guide for the owner........................................................................................................................ 14
Accessories ................................................................................................................................... 14
R-410A – QUICK REFERENCE GUIDE
• R-410A refrigerant operates at 50%-70% higher pressures than R-22. Be sure that servicing
equipment 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 of cylinder in an upright position.
• In case of maintenance, R-410A systems should be charged with refrigerant in liquid phase. Use a
commercial type metering device in 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.
• POE 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).
Quantity CC
Models Oil type Compressor A Compressor B
38GL2M12G PVE 500 ---
38GL2M18G PVE 620 620
38GL2M24G HAB 630 630
38GL3M21G PVE 500 630
38GL4M24G PVE 630 630
Cooling only
Hi-Wall Console Cassette Satellite
Power
models supply
42PHW 42HWS-M 42HMC 42VKG-W 42VMC 40GKX 40JX
38GL2M12G 009-012 009-012 009-012 009-012 009-012 012 009-012
38GL2M18G 009 009 009 009 009 – 009
38GL2M24G 012 012 012 012 012 012 012 230V ~ 50Hz
38GL3M21G 009-012 009-012 009-012 009-012 009-012 012 009-012
38GL4M24G 009-012 009-012 009-012 009-012 009-012 012 009-012
Table I