CC8 roof-top air-conditioning system 4 Installation instructions
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4.10.5 Install the air distribution panel
1. Prepare the air duct weatherseal (if necessary) in such a way that it securely seals the intake and discharge
sections between the vehicle roof and the intermediate ceiling at the top and all sides.
2. Prepare the air duct seal for the air distribution panel as shown in 4.7 and fasten it to the interior of the roof.
NOTE
When you secure the air duct seal, ensure that you do not damage the roof-top unit,
which you have already installed and that the installation holes do not cause the roof
to leak.
3. Make cut-outs for the air outlet and discharge openings in intermediate ceiling to match those in the roof and the
air duct seal. The cut-outs must be as large as possible, but they must be covered by the air distribution panel.
4. Install the intermediate ceiling.
5. Make the cable connections between the air distribution panel and the base plate (see Figs. 701, 702 and 703).
6. Position the air distribution panel as shown in Fig. 408 and fasten it to the intermediate ceiling or to suitable
mounting brackets provided by the customer with 10 self-tapping screws. If necessary, insert a grille for the
circulating air filter and insert the circulating air filter in the intake area of the air distribution panel first.
4.10.6 Install the air ducting system
1. Prepare the air duct weatherseal (if necessary) in such a way that it securely seals the intake and discharge
sections between the vehicle roof and the intermediate ceiling at the top and all sides.
2. Prepare the air duct seal for the air distribution panel as shown in 4.7 and fasten it to the interior of the roof.
CAUTION
When you secure the air duct seal, ensure that you do not damage the roof-top unit,
which you have already installed and that the installation holes do not cause the roof
to leak.
3. Make cut-outs for the air outlet and discharge openings in intermediate ceiling to match those in the roof and the
air duct seal. The openings must be as large as possible, but they must be covered by the air distribution panel.
4. Install the intermediate ceiling.
5. Make the cable connections between the base plate and the dashboard (see Figs. 701, 702 and 703). The control
elements wiring harness (optional) is required for this purpose.
6. Position the air distribution panel as shown in Fig. 408 and fasten it to the intermediate ceiling or to suitable
mounting brackets provided by the customer with 9 self-tapping screws. If necessary, insert a grille for the
circulating air filter and insert the circulating air filter in the intake area of the air distribution panel first.
7. Assemble the air ducting frame, comprising the frame end, frame segments and connectors (the number depends
on the length of air duct) using Torx 30 oval-head bolts M6 x 16, washers DIN 9021-B6.4-ST-A36 and hexagonal
nuts DIN 984-M6-6-A360 (tightening torque 5 Nm) as shown in Fig. 410.
NOTE
Ensure that the frame parts and surfaces are flush when they are screwed together.
There must not be any difference in height at the frame end.
8. Measure the length of ducting parts and thus calculate the insertion depth of the air ducting frame in the air
distribution panel.
9. Place air ducting frame in the centre of the vehicle roof and align it with the markings for insertion depth.
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