Vehicle Compressor Hose Routing; Figure 4--28 Engine Routing (With High & Low In-Line Access Fittings); Figure 4--29 Hose Routing - Oem (To & From Engine) - Carrier Transport Air Conditioning Installation Procedures Manual

Always try to leave a service loop in the hose to relieve
stress from the condenser fitting and for ease of
serviceability.
When making condenser connections, always use
caution as you start the fitting onto the condenser.
Lubricate the fitting and "O" Ring with mineral oil before
making the connection.
Secure hoses in the condenser area with insulated
P-Clamps (see Figure 4--27).
Properly clamping a fitting to the refrigerant hose is very
important. Do not attempt to attach any hose or fitting
until you have familiarized yourself with Carrier
Transport Air Conditioning Quick-Click hose/fitting
clamping procedures. Refer to paragraph NO TAG.

4.8 VEHICLE COMPRESSOR HOSE ROUTING

Always keep hose capped until ready to connect to a
system component.
When routing hoses in the engine area, you must use
extreme caution, due to the many heat sources, sharp
edges, and engine movement (See Figure 4--28).
Low Side Access
CAUTION
Never substitute fittings or hose. Follow the
piping diagram provided with the system.
Follow any special instructions on hose routing that may
have been supplied with the vehicle compressor mount
kit.
Always leave a service a loop in the hoses when
connecting to the compressor on the vehicles engine.
This will allow the hoses to flex with engine movement,
taking stress off of the compressor fittings. Failure to
relieve stress may result in fittings backing off, leaks,
and/or fitting failure.
Secure hoses with insulated Clamps whenever possible
(See Figure 4--29).
T--311
Figure 4- -29 Hose Routing - OEM (To & From Engine)
Hoses must be protected with a heat resistant insulation
when routed close to the manifold, turbo pipes, or any
other hot area of the vehicle engine.
Figure 4- -28 Engine Routing (With High & Low
In-Line Access Fittings)
High Side Access
Clamps
Tie-Wraps may be used to bundle hoses
and harnesses, but should never be used to
secure hoses to the vehicle.
When making compressor connections, always use
caution as you start the fitting onto the compressor.
Lubricate the fitting and "O" Ring with mineral oil before
making the connection.
Apply Mineral Oil to all Flare and O-Ring surfaces prior
to connecting.
No matter what type of lubricant (oil) used
in the system, always use mineral oil to lu-
bricate the O-Rings, and fittings. PAG oils
4--10
Low Side Access
High Side Access
Heat Shielding
CAUTION
CAUTION