Carrier Transport Air Conditioning Installation Procedures Manual page 5

Because of the limited access to the block valve, start the fittings by hand (finger tightening) making
sure that there is no cross-threading before tightening. When tightening the fittings, make sure that
the Block Valve does not move.
Never route refrigerant hose, electrical cable or drain lines in any location where driver's visibality
would be impaired.
When marking the cut-out for a front mounted In-Wall be very careful not to cut too much off the top
radii.
When removing any electrical item involving multiple plugs/sockets it is recommended that you
mark both sides of the plug/socket arrangement. This way you will not have to guess what goes
where when re-connecting.
Because of the limited access to the block valve, start the fittings by hand (finger tightening) making
sure that there is no cross-threading before tightening. When tightening the fittings, make sure that
the Block Valve does not move.
Never tie-wrap or secure in any way, refrigerant hose or electrical cable to any part that may move
during the normal operation of the vehicle. Always use insulated clamps to secure to the bus wall.
(See Figure 2-53 & Figure 2-54)
Make sure there is nothing installed where you are going to drill through the bus floor.
The Rooftop Condenser assembly must contact the bus roof in the center. If not, damage will occur.
Consult factory as optional mounting may be required.
All 3/16 and 1/4 In. rivet engagement thickness (grip range) must be between 0.080 and 0.625. Using
rivets other than those specified may allow the condenser assembly to come loose from the bus roof.
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CAUTION
Safety --iii
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