Service manual

Safety-2T -294-01
SPECIFIC WARNING AND CAUTION STATEMENTS
To help identify the label hazards on the Unit and explain the level of awareness each one carries, an explanation is
given with the appropriate consequences:
DANGER -- means an immediate hazard which WILL result in seve re personal injury or death.
WARNING -- means to warn against hazards or unsafe c onditions which COULD result in sever e per sonal injury or
death.
CAUTION -- meansto warn against potential hazard or unsafe practice which could result in minor personal injury,
product or property damage.
The statements listed below areapplicabletothe refrigerationunit andappear elsewherein thismanual.Theserec-
ommendedprecautionsmustbeunderstoodandappliedduringoperationandmaintenanceoftheequipmentcovered
herein.
WARNING
When servicing the unit, use caution when hand ling R-134a. The refrigerant when in contact with
high temperatures (about 1000_F) will decompose into highly corrosive and toxic compounds.
WARNING
Be sure to avoid refrigerant coming in contact with the eyes. Should refrigerant come in contact
with the eyes, wash eyes for a minimum of 15 minutes with potable water only. THE USE OF
MINERAL OIL OR REFRIGERANT OILS IS NOT RECOMMENDED.
WARNING
Be sure to avoid refrigerant coming in contact with the skin. Should refrigerant come in contact
with the skin, it should be treated as if the skin had been frostbitten or frozen.
WARNING
Be sure ventilation in the workspace is adequate to keep the concentration of r efrigerant below
1000 parts p er million. If necessary, use portable blowers.
WARNING
Beware of rotating fan blades and unannounced starting of fans.
WARNING
Do not use a nitrogen cylinder without a pressure regulator. Never mix refrigerants with air for
leak testing. It has been determined that pr essurized, air-rich mixtures of refrigerants and air can
undergo combustion when exposed to an ignition source.
WARNING
Never fill a r efrigerant cylinder beyond its rated capacity. Cylinder may rupture due to excessive
pressure when exposed to high temperatur es.
WARNING
When starting the unit, be sure that all manual refrigerant valves in the discharge line are open.
Severe damage could occur from extremely high refrigerant pressures.
WARNING
When brazing (soldering) r efrigeration system, residual oil can cause a fire and potential injury.
Refertoproperprocedurebeforestartingrepair.