Stulz CeilAir CW - Page 13

13OCH0006F08/13/2024
CEILAIR
®
CW & DX IOM
1.4.1 GENERAL
WARNING
Never operate the unit with any cover, guard, or screen panel, removed unless the instructions specifically
state otherwise, then do so with extreme caution to avoid personal injury.
WARNING
Refrigerant is used with this equipment. Death or serious injury may result if personnel fail to observe
proper safety precautions. Exercise great care to prevent contact of liquid refrigerant or refrigerant gas,
discharged under pressure, with any part of the body. Rapid expansion of liquid refrigerant or pressurized
gas reaches extremely low temperatures which can cause sudden and irreversible tissue damage.
At a minimum, all personnel should wear thermal protective gloves and face-shield or goggles when
working with refrigerant. Application of excessive heat to any component will cause extreme pressure
and may result in a rupture.
Exposure of refrigerant to an open flame or a very hot surface may cause a chemical reaction that forms
hydrofluoric acid or carbonyl fluoride, a highly poisonous and corrosive gas commonly referred to as
fluorophosgene. In its natural state, refrigerant is a colorless, odorless vapor with no toxic characteristics.
It is heavier than air and will disperse rapidly in a well-ventilated area. In an unventilated area it presents a
suffocation risk.
Always review the manufacturer’s Safety Data Sheet (SDS) provided with the unit before performing work
involving refrigerant.
WARNING
Do not use cleaning solvents near open flame or excessive heat. Wear eye protection when blowing
solvent from parts. The pressure-wash should not exceed 30 psig. Solvent solutions should be disposed
of in accordance with local and state regulatory statutes.
WARNING
Certain maintenance or cleaning procedures may call for the use and handling of chemicals, solvents,
or cleansers. Always refer to the manufacturer’s Safety Data Sheet (SDS) prior to using these materials.
Clean parts in a well-ventilated area. Avoid inhalation of solvent fumes and prolonged exposure of skin to
cleaning solvents. Wash exposed skin thoroughly after contact with solvents.
WARNING
When performing soldering or desoldering operations, make certain the refrigeration system is fully
recovered and purged and dry nitrogen is flowing through the system at the rate of not less than 12
CFM.
WARNING
Cooling coils and associated piping circuits are pressurized up to 100 psi and sealed when they leave the
factory. Before installing the interconnecting piping, observe appropriate safety precautions and release
the pressure via an available stem valve or Schrader valve prior to uncapping the pipes.