Carrier Em1 Manual

T--311 4-5
Insulated Clamp
Figure 4-- 13 Hose/Harness Clamped to Wall
At this time the evaporator can be mounted. Refer to
Section 2 for the proper procedures for installing a rear
mounted evaporator assembly.
12. You may now make the appropriate connection to
the evaporator.
Proper hose to fitting clamping is critical. Do not attempt
to attach any hose or fitting until you have familiarized
yourself with Carrier Transport Air Conditioning
Quick-Click hose/fitting crimping procedures.
4.3 EVAPORATOR HOSE...

T--3114-6 On many of the larger buses there are heater hose lines
with covers running the length of the bus floor. On most
applications there is enough room inside the heater
hose covers to route the hose, harness, and drain line
behind the heater hose. Extreme care must be taken so
as not to drill into, cut, or kink the heater lines. This type
routing takes a little more time, but makes for a much
neater installation.
5. Drill a 3/16 inch pilot hole in the center of where you
are going to drill the two...

T--311 4-7
Figure 4-- 15 Hose Routing (Chassis)
Figure 4-- 16 Hose Routing (Chassis)
Figure 4-- 17 Hose Routing (Chassis)
Figure 4-- 18 Hose Routing (Chassis)
Figure 4-- 19 Hose Routing (Chassis & Condenser)
4.6 CONDENSER HOSE ROUTING
Always keep hose capped until ready to connect to a
system component.When mounting hose in the condenser area, secure the
hose in a manner so that the weight of the hose is not on
the condenser fittings. 

T--3114-8 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-- 19).
Properly clamping a fitting to the refrigerant hose is very
important. Do not attempt to attach any hose or...

T--311 4-9 Table 4-1 STANDARD TORQUE REQUIREMENTS
SIZETUBE O.D. *FLAREO-RINGTHREAD **
STEEL TUBINGALUM. TUBING
41/4 inch (.250)11-13 ft./lbs.30-35 ft./lbs.5-7 ft./lbs.7/16
53/8 inch (.375)15-17 ft./lbs.30-35 ft./lbs.8-10 ft./lbs9/16
63/8 inch (.375)18-20 ft./lbs.30-35 ft./lbs.11-13 ft./lbs5/8
81/2 inch (.500)36-39 ft./lbs.30-35 ft./lbs.15-20 ft./lbs3/4
105/8 inch (.625)52-57 ft./lbs.30-35 ft./lbs.21-27 ft./lbs7/8
123/4 inch (.750)71-79 ft./lbs.30-35 ft./lbs.28-33 ft./lbs1-1/16
*The tube O.D. is measured...

4--10 T--311
Figure 4-22 Rear Evaporator, OEM Tie-in
FILTER DRIER 

4--11 T--311
Figure 4-23 Evaporator, Skirt Monuted Condenser and Compressor
FILTER DRIER 

4--12 T--311
Figure 4-24 Evaporator, Skirt Monuted Condenser and Compressor (AC-- 322, -- 332, -- 442)
FILTER DRIER 

4--13 T--311
Figure 4-25 Evaporator, Skirt Monuted Condenser Compressor and Aftermarket InDash (AC-- 4431)
FILTER
DRIER 

4--14 T--311
Figure 4-26 EM--3 Evaporator, (2) Skirt Monuted Condensers and TM -- 31 Compressor (AC-- 882, -- 883)
FILTER
DRIER
FILTER
DRIER