Chassis Hose Routing; Figure 4--21 Metal Hose Cover Backs W/Tie-Wraps; Figure 4--22 Side-Mounted Hose/Harness Routing - Carrier Transport Air Conditioning Installation Procedures Manual

Installation Tip
To help keep hoses, harness, and drain lines
secure and in the center of the hose covers,
3/16 inch holes can be drilled in the hose cover
backs. Insert Tie-Wraps through the holes be-
fore securing the hose cover backs to the wall
(see Figure 4--21).
Figure 4- -21 Metal Hose Cover Backs W/Tie-Wraps
10.Remove (deburr) any rough edges from around the
cut-out.
11. Route the hoses and harness at this time.
Before fastening to the hose cover backs, protect the
hoses and harness wherever they go through the bus
floor or heater cover.
A piece of scrap drain hose or heater hose, split down
the middle, can be used for protection.
12.After hoses and harness are protected, secure them
to the hose cover backs with the Tie-Wraps.
13.You may now make the appropriate hose connec-
tions to the evaporator.
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.
T--311
Figure 4- -22 Side-Mounted Hose/Harness Routing

4.6 CHASSIS HOSE ROUTING

Always keep hose capped until ready to connect to a
system component.
Exact routing of hose and harness in the chassis area
cannot possibly be covered in detail due to the various
manufacturers of vehicles and chassis, as well as many
different applications.
Once the hoses are routed from the evaporator area
and through the floor of the vehicle, they will have to be
routed to the condenser and compressor areas.
Before routing the hose, plan the route the hose and
harness will take, avoiding heat sources, sharp or rough
areas, moving parts, etc.
Always protect hose and harness where they cross over
the vehicle frame or any other place where they are
laying on sharp edges (see Figure 4--23 & Figure 4--25)
or are near any heat source.
Secure the hoses underneath the vehicle with insulated
"P-Clamps". Clamps should be spaced no more than 24
inches apart. Secure the hoses and harness to the
vehicles floor supports and/or chassis frame (see
Figure 4--23 thru Figure 4--24).
4--8