York YCAS0130 manual Rotating Parts, Sharp Edges, Refrigerants and Oils, Emergency Shutdown

personnel. No attempt should be made to gain access to the control panel or electrical enclosures during normal operation of the unit.

Rotating Parts

Fan guards must be fitted at all times and not removed unless the power supply has been isolated. If ductwork is to be fitted, requiring the wire fan guards to be removed, alternative safety measures must be taken to protect against the risk of injury from rotating fans.

Sharp Edges

The finning on the air cooled condenser coils has sharp metal edges. Reasonable care should be taken when working in contact with the coils to avoid the risk of minor abrasions and lacerations. The use of gloves is recommended.

Refrigerants and Oils

Refrigerants and oils used in the unit are generally non- toxic, non-flammable and non-corrosive, and pose no special safety hazards. Use of gloves and safety glasses are, however, recommended when working on the unit. The build up of refrigerant vapor, from a leak for ex-

FORM 201.19-NM1 (204)

ample, does pose a risk of asphyxiation in confined or enclosed spaces and attention should be given to good ventilation.

High Temperature and Pressure Cleaning

High temperature and pressure cleaning methods (e.g. steam cleaning) should not be used on any part of the pressure system as this may cause operation of the pres- sure relief device(s). Detergents and solvents which may cause corrosion should also be avoided.

EMERGENCY SHUTDOWN

In case of emergency the electrical option panel is fitted with an emergency stop switch CB3 (Circuit Breaker 3). Separate Circuit Breakers, CB1 (System 1) and CB2 (System 2), can also be used to stop the respective sys- tem in an emergency. When operated, CB3 removes the electrical supply from the control system, thus shutting down the unit.

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