Isuzu 1999 RODEO Workshop Manual page 60

1A–32 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Refrigerant Line
Restriction in the refrigerant line will be indicated by:
1. Suction line — A restricted suction line will cause low
suction pressure at the compressor, low discharge
pressure and little or no cooling.
2. Discharge line — A restriction in the discharge line
generally will cause the discharge line to leak.
3. Liquid line — A liquid line restriction will be evidenced
by low discharge and suction pressure and
insufficient cooling.
Refrigerant flexible hoses that have a low permeability to
refrigerant and moisture
permeability hoses have a special nylon layer on the
inside.
Legend
(1) Reinforcement Layer (Polyester)
(2) External Rubber Layer
(3) Internal Rubber Layer
(4) Resin Layer (Nylon)
are used. These low
852RS001