Holiday Navigator 2003 Owner's Manual page 375

R-134a Refrigerant:
R134a is classified non-explosive, non-flammable and non-corrosive.
There is hardly any odor and it is much heavier than air. R134a is ozone
friendly; however, it is not technician friendly. Proper care in handling and
adequate ventilation must be observed. Under normal atmospheric pressures
and temperatures R134a will evaporate so quickly it will freeze anything it
comes in contact with. The open container boiling point for R134a is minus
21.7º F. This low boiling point makes for an ideal refrigerant. The tremendous
amount heat transfer which occurs when a liquid boils, or vapors condense,
forms the basic principles of all A/C systems. The amount of heat required to
raise or lower the temperature of one pound of water by 1º F equals one
British Thermal Unit (BTU). The BTU is the standard measurement of an air
conditioner system.
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Electrical Systems - Chassis
psi gauge_temp.eps
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